From 86d394a51b1d0a1dc970b642774c1371b07267fc Mon Sep 17 00:00:00 2001
From: Luka Jacobowitz <luka.jacobowitz@codecentric.de>
Date: Wed, 7 Feb 2018 13:00:05 +0100
Subject: [PATCH] Move newtype to its own file

---
 core/src/main/scala/cats/data/Newtype.scala     | 8 ++++++++
 core/src/main/scala/cats/data/NonEmptySet.scala | 7 +------
 2 files changed, 9 insertions(+), 6 deletions(-)
 create mode 100644 core/src/main/scala/cats/data/Newtype.scala

diff --git a/core/src/main/scala/cats/data/Newtype.scala b/core/src/main/scala/cats/data/Newtype.scala
new file mode 100644
index 00000000000..6970c874947
--- /dev/null
+++ b/core/src/main/scala/cats/data/Newtype.scala
@@ -0,0 +1,8 @@
+package cats
+package data
+
+trait Newtype { self =>
+  private[data] type Base
+  private[data] trait Tag extends Any
+  private[cats] type Type[A] <: Base with Tag
+}
diff --git a/core/src/main/scala/cats/data/NonEmptySet.scala b/core/src/main/scala/cats/data/NonEmptySet.scala
index 2f12179d6b2..6a8792c0993 100644
--- a/core/src/main/scala/cats/data/NonEmptySet.scala
+++ b/core/src/main/scala/cats/data/NonEmptySet.scala
@@ -23,11 +23,6 @@ import cats.{Always, Eq, Eval, Foldable, Later, Now, Reducible, SemigroupK, Show
 
 import scala.collection.immutable._
 
-trait Newtype { self =>
-  private[data] type Base
-  private[data] trait Tag extends Any
-  private[cats] type Type[A] <: Base with Tag
-}
 
 private[data] object NonEmptySetImpl extends NonEmptySetInstances with Newtype {
 
@@ -56,7 +51,7 @@ private[data] object NonEmptySetImpl extends NonEmptySetInstances with Newtype {
 }
 
 
-private[data] sealed class NonEmptySetOps[A](val value: NonEmptySetImpl.Type[A]) {
+sealed class NonEmptySetOps[A](val value: NonEmptySet[A]) {
 
   private implicit val ordering: Ordering[A] = toSortedSet.ordering
   private implicit val order: Order[A] = Order.fromOrdering