Use uber import in docs. (#1026)

core/src/main/scala/cats/CoflatMap.scala

@@ -16,7 +16,7 @@ import simulacrum.typeclass
     *
     * Example:
     * {{{
-    * scala> import cats.std.option._
+    * scala> import cats.implicits._
     * scala> import cats.Monad
     * scala> import cats.CoflatMap
     * scala> val fa = Monad[Option].pure(3)
@@ -35,7 +35,7 @@ import simulacrum.typeclass
     *
     * Example:
     * {{{
-    * scala> import cats.std.option._
+    * scala> import cats.implicits._
     * scala> import cats.Monad
     * scala> import cats.CoflatMap
     * scala> val fa = Monad[Option].pure(3)

core/src/main/scala/cats/Foldable.scala

@@ -92,8 +92,7 @@ import simulacrum.typeclass
    *
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
-   * scala> import cats.std.option._
+   * scala> import cats.implicits._
    * scala> def parseInt(s: String): Option[Int] = Xor.catchOnly[NumberFormatException](s.toInt).toOption
    * scala> val F = Foldable[List]
    * scala> F.traverse_(List("333", "444"))(parseInt)
@@ -118,7 +117,7 @@ import simulacrum.typeclass
    *
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
+   * scala> import cats.implicits._
    * scala> def parseInt(s: String): Xor[String, Int] =
    *      |   try { Xor.Right(s.toInt) }
    *      |   catch { case _: NumberFormatException => Xor.Left("boo") }
@@ -145,8 +144,7 @@ import simulacrum.typeclass
    * For example:
    *
    * {{{
-   * scala> import cats.std.list._
-   * scala> import cats.std.option._
+   * scala> import cats.implicits._
    * scala> val F = Foldable[List]
    * scala> F.sequence_(List(Option(1), Option(2), Option(3)))
    * res0: Option[Unit] = Some(())
@@ -164,7 +162,7 @@ import simulacrum.typeclass
    *
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
+   * scala> import cats.implicits._
    * scala> val F = Foldable[List]
    * scala> F.sequenceU_(List(Xor.right[String, Int](333), Xor.Right(444)))
    * res0: Xor[String, Unit] = Right(())
@@ -188,7 +186,7 @@ import simulacrum.typeclass
    * For example:
    *
    * {{{
-   * scala> import cats.std.list._
+   * scala> import cats.implicits._
    * scala> val F = Foldable[List]
    * scala> F.foldK(List(1 :: 2 :: Nil, 3 :: 4 :: 5 :: Nil))
    * res0: List[Int] = List(1, 2, 3, 4, 5)

core/src/main/scala/cats/arrow/Arrow.scala

@@ -16,7 +16,7 @@ trait Arrow[F[_, _]] extends Split[F] with Strong[F] with Category[F] { self =>
     *
     * Example:
     * {{{
-    * scala> import cats.std.function._
+    * scala> import cats.implicits._
     * scala> import cats.arrow.Arrow
     * scala> val fab: Double => Double = x => x + 0.3
     * scala> val f: Int => Double = x => x.toDouble / 2
@@ -34,7 +34,7 @@ trait Arrow[F[_, _]] extends Split[F] with Strong[F] with Category[F] { self =>
     *
     * Example:
     * {{{
-    * scala> import cats.std.function._
+    * scala> import cats.implicits._
     * scala> import cats.arrow.Arrow
     * scala> val f: Int => Int = _ * 2
     * scala> val fab = Arrow[Function1].first[Int,Int,Int](f)
@@ -49,7 +49,7 @@ trait Arrow[F[_, _]] extends Split[F] with Strong[F] with Category[F] { self =>
     *
     * Example:
     * {{{
-    * scala> import cats.std.function._
+    * scala> import cats.implicits._
     * scala> import cats.arrow.Arrow
     * scala> val f: Int => Int = _ * 2
     * scala> val fab = Arrow[Function1].second[Int,Int,Int](f)
@@ -68,7 +68,7 @@ trait Arrow[F[_, _]] extends Split[F] with Strong[F] with Category[F] { self =>
    *
    * Example:
    * {{{
-   * scala> import cats.std.function._
+   * scala> import cats.implicits._
    * scala> import cats.arrow.Arrow
    * scala> val toLong: Int => Long = _.toLong
    * scala> val toDouble: Float => Double = _.toDouble

core/src/main/scala/cats/arrow/Choice.scala

@@ -13,7 +13,7 @@ trait Choice[F[_, _]] extends Category[F] {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.function._
+   * scala> import cats.implicits._
    * scala> val b: Boolean => String = _ + " is a boolean"
    * scala> val i: Int => String =  _ + " is an integer"
    * scala> val f: (Boolean Xor Int) => String = Choice[Function1].choice(b, i)
@@ -34,7 +34,7 @@ trait Choice[F[_, _]] extends Category[F] {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.function._
+   * scala> import cats.implicits._
    * scala> val f: (Int Xor Int) => Int = Choice[Function1].codiagonal[Int]
    *
    * scala> f(Xor.right(3))

core/src/main/scala/cats/data/OptionT.scala

@@ -110,7 +110,7 @@ object OptionT extends OptionTInstances {
    * Note: The return type is a FromOptionPartiallyApplied[F], which has an apply method
    * on it, allowing you to call fromOption like this:
    * {{{
-   * scala> import cats.std.list._
+   * scala> import cats.implicits._
    * scala> val o: Option[Int] = Some(2)
    * scala> OptionT.fromOption[List](o)
    * res0: OptionT[List, Int] = OptionT(List(Some(2)))

core/src/main/scala/cats/data/StateT.scala

@@ -85,7 +85,7 @@ final class StateT[F[_], S, A](val runF: F[S => F[(S, A)]]) extends Serializable
    * global state containing the various states needed for each individual `StateT`.
    *
    * {{{
-   * scala> import cats.std.option._ // needed for StateT.apply
+   * scala> import cats.implicits._ // needed for StateT.apply
    * scala> type GlobalEnv = (Int, String)
    * scala> val x: StateT[Option, Int, Double] = StateT((x: Int) => Option((x + 1, x.toDouble)))
    * scala> val xt: StateT[Option, GlobalEnv, Double] = x.transformS[GlobalEnv](_._1, (t, i) => (i, t._2))

core/src/main/scala/cats/data/XorT.scala

@@ -161,9 +161,7 @@ final case class XorT[F[_], A, B](value: F[A Xor B]) {
    *
    * Example:
    * {{{
-   * scala> import cats.std.option._
-   * scala> import cats.std.list._
-   * scala> import cats.syntax.cartesian._
+   * scala> import cats.implicits._
    * scala> type Error = String
    * scala> val v1: Validated[NonEmptyList[Error], Int] = Validated.Invalid(NonEmptyList("error 1"))
    * scala> val v2: Validated[NonEmptyList[Error], Int] = Validated.Invalid(NonEmptyList("error 2"))
@@ -192,7 +190,7 @@ trait XorTFunctions {
    * Note: The return type is a FromXorPartiallyApplied[F], which has an apply method
    * on it, allowing you to call fromXor like this:
    * {{{
-   * scala> import cats.std.option._
+   * scala> import cats.implicits._
    * scala> val t: Xor[String, Int] = Xor.right(3)
    * scala> XorT.fromXor[Option](t)
    * res0: XorT[Option, String, Int] = XorT(Some(Right(3)))

core/src/main/scala/cats/syntax/coproduct.scala

@@ -18,7 +18,7 @@ final class CoproductOps[F[_], A](val fa: F[A]) extends AnyVal {
    * {{{
    * scala> import cats.data.Coproduct
    * scala> import cats.Eval
-   * scala> import cats.syntax.coproduct._
+   * scala> import cats.implicits._
    * scala> List(1, 2, 3).leftc[Eval]
    * res0: Coproduct[List, Eval, Int] = Coproduct(Left(List(1, 2, 3)))
    * }}}
@@ -34,7 +34,7 @@ final class CoproductOps[F[_], A](val fa: F[A]) extends AnyVal {
    * {{{
    * scala> import cats.data.Coproduct
    * scala> import cats.Eval
-   * scala> import cats.syntax.coproduct._
+   * scala> import cats.implicits._
    * scala> List(1, 2, 3).rightc[Eval]
    * res0: Coproduct[Eval, List, Int] = Coproduct(Right(List(1, 2, 3)))
    * }}}

core/src/main/scala/cats/syntax/either.scala

@@ -15,7 +15,7 @@ final class EitherOps[A, B](val eab: Either[A, B]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.syntax.either._
+   * scala> import cats.implicits._
    *
    * scala> val i: Either[String, Int] = Right(3)
    * scala> i.toXor

core/src/main/scala/cats/syntax/flatMap.scala

@@ -25,8 +25,7 @@ final class FlatMapOps[F[_], A](fa: F[A])(implicit F: FlatMap[F]) {
    *
    * Example:
    * {{{
-   * scala> import cats.std.list._
-   * scala> import cats.syntax.flatMap._
+   * scala> import cats.implicits._
    * scala> List("12", "34", "56").mproduct(_.toList)
    * res0: List[(String, Char)] = List((12,1), (12,2), (34,3), (34,4), (56,5), (56,6))
    * }}}
@@ -48,8 +47,7 @@ final class FlatMapOps[F[_], A](fa: F[A])(implicit F: FlatMap[F]) {
    *
    * {{{
    * scala> import cats.Eval
-   * scala> import cats.std.option._
-   * scala> import cats.syntax.flatMap._
+   * scala> import cats.implicits._
    * scala> val fa: Option[Int] = Some(3)
    * scala> def fb: Option[String] = Some("foo")
    * scala> fa.followedByEval(Eval.later(fb))
@@ -68,7 +66,7 @@ final class FlattenOps[F[_], A](ffa: F[F[A]])(implicit F: FlatMap[F]) {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.syntax.flatMap._
+   * scala> import cats.implicits._
    * scala> type ErrorOr[A] = String Xor A
    * scala> val x: ErrorOr[ErrorOr[Int]] = Xor.right(Xor.right(3))
    * scala> x.flatten
@@ -86,7 +84,7 @@ final class IfMOps[F[_]](fa: F[Boolean])(implicit F: FlatMap[F]) {
    * Example:
    * {{{
    * scala> import cats.{Eval, Now}
-   * scala> import cats.syntax.flatMap._
+   * scala> import cats.implicits._
    *
    * scala> val b1: Eval[Boolean] = Now(true)
    * scala> val asInt1: Eval[Int] = b1.ifM(Now(1), Now(0))

core/src/main/scala/cats/syntax/foldable.scala

@@ -22,9 +22,7 @@ final class NestedFoldableOps[F[_], G[_], A](fga: F[G[A]])(implicit F: Foldable[
    *
    * Example:
    * {{{
-   * scala> import cats.std.list._
-   * scala> import cats.std.set._
-   * scala> import cats.syntax.foldable._
+   * scala> import cats.implicits._
    *
    * scala> val l: List[Set[Int]] = List(Set(1, 2), Set(2, 3), Set(3, 4))
    * scala> l.foldK

core/src/main/scala/cats/syntax/monadCombine.scala

@@ -17,9 +17,7 @@ final class MonadCombineOps[F[_], G[_], A](fga: F[G[A]])(implicit F: MonadCombin
    *
    * Example:
    * {{{
-   * scala> import cats.std.list._
-   * scala> import cats.std.vector._
-   * scala> import cats.syntax.monadCombine._
+   * scala> import cats.implicits._
    * scala> val x: List[Vector[Int]] = List(Vector(1, 2), Vector(3, 4))
    * scala> x.unite
    * res0: List[Int] = List(1, 2, 3, 4)
@@ -36,8 +34,7 @@ final class SeparateOps[F[_], G[_, _], A, B](fgab: F[G[A, B]])(implicit F: Monad
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
-   * scala> import cats.syntax.monadCombine._
+   * scala> import cats.implicits._
    * scala> val l: List[Xor[String, Int]] = List(Xor.right(1), Xor.left("error"))
    * scala> l.separate
    * res0: (List[String], List[Int]) = (List(error),List(1))

core/src/main/scala/cats/syntax/option.scala

@@ -18,7 +18,7 @@ final class OptionIdOps[A](val a: A) extends AnyVal {
    *
    * Example:
    * {{{
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    * scala> 3.some
    * res0: Option[Int] = Some(3)
    * }}}
@@ -35,7 +35,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    *
    * scala> val error1: Option[String] = Some("error!")
    * scala> error1.toLeftXor(3)
@@ -56,7 +56,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    *
    * scala> val result1: Option[Int] = Some(3)
    * scala> result1.toRightXor("error!")
@@ -77,7 +77,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.Validated
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    *
    * scala> val error1: Option[String] = Some("error!")
    * scala> error1.toInvalid(3)
@@ -99,7 +99,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.ValidatedNel
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    *
    * scala> val error1: Option[String] = Some("error!")
    * scala> error1.toInvalidNel(3)
@@ -120,7 +120,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.Validated
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    *
    * scala> val result1: Option[Int] = Some(3)
    * scala> result1.toValid("error!")
@@ -141,7 +141,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    * Example:
    * {{{
    * scala> import cats.data.ValidatedNel
-   * scala> import cats.syntax.option._
+   * scala> import cats.implicits._
    *
    * scala> val result1: Option[Int] = Some(3)
    * scala> result1.toValidNel("error!")
@@ -160,8 +160,7 @@ final class OptionOps[A](val oa: Option[A]) extends AnyVal {
    *
    * Example:
    * {{{
-   * scala> import cats.syntax.option._
-   * scala> import cats.std.string._
+   * scala> import cats.implicits._
    *
    * scala> val someString: Option[String] = Some("hello")
    * scala> someString.orEmpty

core/src/main/scala/cats/syntax/traverse.scala

@@ -22,9 +22,7 @@ final class TraverseOps[F[_], A](fa: F[A])(implicit F: Traverse[F]) {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
-   * scala> import cats.std.option._
-   * scala> import cats.syntax.traverse._
+   * scala> import cats.implicits._
    * scala> def parseInt(s: String): Option[Int] = Xor.catchOnly[NumberFormatException](s.toInt).toOption
    * scala> List("1", "2", "3").traverse(parseInt)
    * res0: Option[List[Int]] = Some(List(1, 2, 3))
@@ -41,8 +39,7 @@ final class TraverseOps[F[_], A](fa: F[A])(implicit F: Traverse[F]) {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
-   * scala> import cats.syntax.traverse._
+   * scala> import cats.implicits._
    * scala> def parseInt(s: String): Xor[String, Int] = Xor.catchOnly[NumberFormatException](s.toInt).leftMap(_ => "no number")
    * scala> val ns = List("1", "2", "3")
    * scala> ns.traverseU(parseInt)
@@ -60,9 +57,7 @@ final class TraverseOps[F[_], A](fa: F[A])(implicit F: Traverse[F]) {
    * Example:
    * {{{
    * scala> import cats.data.Xor
-   * scala> import cats.std.list._
-   * scala> import cats.std.option._
-   * scala> import cats.syntax.traverse._
+   * scala> import cats.implicits._
    * scala> def parseInt(s: String): Option[Int] = Xor.catchOnly[NumberFormatException](s.toInt).toOption
    * scala> val x = Option(List("1", "two", "3"))
    * scala> x.traverseM(_.map(parseInt))
@@ -77,9 +72,7 @@ final class TraverseOps[F[_], A](fa: F[A])(implicit F: Traverse[F]) {
    *
    * Example:
    * {{{
-   * scala> import cats.std.list._
-   * scala> import cats.std.option._
-   * scala> import cats.syntax.traverse._
+   * scala> import cats.implicits._
    * scala> val x: List[Option[Int]] = List(Some(1), Some(2))
    * scala> val y: List[Option[Int]] = List(None, Some(2))
    * scala> x.sequence
@@ -97,8 +90,7 @@ final class TraverseOps[F[_], A](fa: F[A])(implicit F: Traverse[F]) {
    * Example:
    * {{{
    * scala> import cats.data.{Validated, ValidatedNel}
-   * scala> import cats.std.list._
-   * scala> import cats.syntax.traverse._
+   * scala> import cats.implicits._
    * scala> val x: List[ValidatedNel[String, Int]] = List(Validated.valid(1), Validated.invalid("a"), Validated.invalid("b")).map(_.toValidatedNel)
    * scala> x.sequenceU
    * res0: cats.data.ValidatedNel[String,List[Int]] = Invalid(OneAnd(a,List(b)))

docs/src/main/tut/applicative.md

@@ -22,7 +22,7 @@ obvious. For `Option`, the `pure` operation wraps the value in
 
 ```tut:book
 import cats._
-import cats.std.all._
+import cats.implicits._
 
 Applicative[Option].pure(1)
 Applicative[List].pure(1)

docs/src/main/tut/apply.md

@@ -121,7 +121,7 @@ In order to use it, first import `cats.syntax.all._` or `cats.syntax.cartesian._
 Here we see that the following two functions, `f1` and `f2`, are equivalent:
 
 ```tut:book
-import cats.syntax.cartesian._
+import cats.implicits._
 
 def f1(a: Option[Int], b: Option[Int], c: Option[Int]) =
   (a |@| b |@| c) map { _ * _ * _ }