From b88babc54fb5badbbd89e2bbfbfaf209b1b3a309 Mon Sep 17 00:00:00 2001
From: FreddyD <FreddyD@GIT>
Date: Sat, 22 Feb 2020 02:07:27 -0500
Subject: [PATCH] Revert "Remove unused code"

This reverts commit b0efbdf5e8c23d133cdf1cbca4b135a97bf5283a.
---
 src/Shared/SharedTypeExtensions.cs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/Shared/SharedTypeExtensions.cs b/src/Shared/SharedTypeExtensions.cs
index 3fe4acf..e73b132 100644
--- a/src/Shared/SharedTypeExtensions.cs
+++ b/src/Shared/SharedTypeExtensions.cs
@@ -63,6 +63,20 @@ namespace System
                && !type.IsInterface
                && (!type.IsGenericType || !type.IsGenericTypeDefinition);
 
+        public static bool IsGrouping(this Type type) => IsGrouping(type.GetTypeInfo());
+
+#if NETCOREAPP3_1
+        private static bool IsGrouping(TypeInfo type)
+            => type.IsGenericType
+               && (type.GetGenericTypeDefinition() == typeof(IGrouping<,>)
+                   || type.GetGenericTypeDefinition() == typeof(SystemInteractiveAsync::System.Linq.IAsyncGrouping<,>));
+#else
+        private static bool IsGrouping(TypeInfo type)
+            => type.IsGenericType
+               && (type.GetGenericTypeDefinition() == typeof(IGrouping<,>)
+                   || type.GetGenericTypeDefinition() == typeof(IAsyncGrouping<,>));
+#endif
+
         public static Type UnwrapEnumType(this Type type)
         {
             var isNullable = type.IsNullableType();