Merge pull request #4373 from UlisesTorrella/issue#4370

Move `catsTraverseForSeq` to lower-priority implicit scope
typelevel · Jan 15, 2023 · bd0d7b8 · bd0d7b8
2 parents bbfa146 + c70beec
commit bd0d7b8
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/core/src/main/scala/cats/UnorderedFoldable.scala b/core/src/main/scala/cats/UnorderedFoldable.scala
@@ -98,9 +98,14 @@ trait UnorderedFoldable[F[_]] extends Serializable {
     unorderedFoldMap(fa)(a => if (p(a)) 1L else 0L)
 }
 
+private[cats] trait UnorderedFoldableLowPriority {
+  implicit def catsTraverseForSeq: Traverse[Seq] = cats.instances.seq.catsStdInstancesForSeq
+}
+
 object UnorderedFoldable
     extends ScalaVersionSpecificTraverseInstances
-    with cats.instances.NTupleUnorderedFoldableInstances {
+    with cats.instances.NTupleUnorderedFoldableInstances
+    with UnorderedFoldableLowPriority {
 
   private val orEvalMonoid: CommutativeMonoid[Eval[Boolean]] = new CommutativeMonoid[Eval[Boolean]] {
     val empty: Eval[Boolean] = Eval.False
@@ -125,7 +130,6 @@ object UnorderedFoldable
   implicit def catsNonEmptyTraverseForId: NonEmptyTraverse[Id] = catsInstancesForId
   implicit def catsTraverseForOption: Traverse[Option] = cats.instances.option.catsStdInstancesForOption
   implicit def catsTraverseForList: Traverse[List] = cats.instances.list.catsStdInstancesForList
-  implicit def catsTraverseForSeq: Traverse[Seq] = cats.instances.seq.catsStdInstancesForSeq
   implicit def catsTraverseForVector: Traverse[Vector] = cats.instances.vector.catsStdInstancesForVector
   implicit def catsTraverseForQueue: Traverse[Queue] = cats.instances.queue.catsStdInstancesForQueue
   implicit def catsUnorderedTraverseForSet: UnorderedTraverse[Set] = cats.instances.set.catsStdInstancesForSet