diff --git a/ReactCommon/fabric/mounting/Differentiator.cpp b/ReactCommon/fabric/mounting/Differentiator.cpp
index 84d4931c28a..54b78aafab7 100644
--- a/ReactCommon/fabric/mounting/Differentiator.cpp
+++ b/ReactCommon/fabric/mounting/Differentiator.cpp
@@ -115,6 +115,29 @@ static ShadowViewNodePair::List sliceChildShadowNodeViewPairs(
   return pairList;
 }
 
+/*
+ * Before we start to diff, let's make sure all our core data structures are in
+ * good shape to deliver the best performance.
+ */
+static_assert(
+    std::is_move_constructible<ShadowViewMutation>::value,
+    "`ShadowViewMutation` must be `move constructible`.");
+static_assert(
+    std::is_move_constructible<ShadowView>::value,
+    "`ShadowView` must be `move constructible`.");
+static_assert(
+    std::is_move_constructible<ShadowViewNodePair>::value,
+    "`ShadowViewNodePair` must be `move constructible`.");
+static_assert(
+    std::is_move_assignable<ShadowViewMutation>::value,
+    "`ShadowViewMutation` must be `move assignable`.");
+static_assert(
+    std::is_move_assignable<ShadowView>::value,
+    "`ShadowView` must be `move assignable`.");
+static_assert(
+    std::is_move_assignable<ShadowViewNodePair>::value,
+    "`ShadowViewNodePair` must be `move assignable`.");
+
 static void calculateShadowViewMutations(
     ShadowViewMutation::List &mutations,
     ShadowView const &parentShadowView,
@@ -183,7 +206,7 @@ static void calculateShadowViewMutations(
     auto const &newChildPair = newChildPairs[index];
 
     insertMutations.push_back(ShadowViewMutation::InsertMutation(
-          parentShadowView, newChildPair.shadowView, index));
+        parentShadowView, newChildPair.shadowView, index));
 
     insertedPairs.insert({newChildPair.shadowView.tag, &newChildPair});
   }