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• ScalaVersionSpecificFunctorWithIndexInstances.scala

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proptics.instances.ScalaVersionSpecificFunctorWithIndexInstances.scala Maven / Gradle / Ivy

package proptics.instances

import scala.collection.immutable.ArraySeq

import cats.Traverse

import proptics.indices.FunctorWithIndex

private[instances] trait ScalaVersionSpecificFunctorWithIndexInstances {
  implicit final val functorWithIndexLazyList: FunctorWithIndex[LazyList, Int] = new FunctorWithIndex[LazyList, Int] {
    override def mapWithIndex[A, B](f: (A, Int) => B)(fa: LazyList[A]): LazyList[B] =
      Traverse[LazyList].mapWithIndex(fa)(f)
  }

  implicit final val functorWithIndexArraySeq: FunctorWithIndex[ArraySeq, Int] = new FunctorWithIndex[ArraySeq, Int] {
    override def mapWithIndex[A, B](f: (A, Int) => B)(fa: ArraySeq[A]): ArraySeq[B] =
      Traverse[ArraySeq].mapWithIndex(fa)(f)
  }
}