diff --git a/Antlr4.Runtime/Sharpen/Arrays.cs b/Antlr4.Runtime/Sharpen/Arrays.cs
index 1735a0ba9..62f6f188b 100644
--- a/Antlr4.Runtime/Sharpen/Arrays.cs
+++ b/Antlr4.Runtime/Sharpen/Arrays.cs
@@ -1,6 +1,7 @@
 namespace Sharpen
 {
     using System;
+    using System.Collections.Generic;
 
     internal static class Arrays
     {
@@ -9,5 +10,10 @@
             Array.Resize(ref array, newSize);
             return array;
         }
+
+        public static IList<T> AsList<T>(params T[] array)
+        {
+            return array;
+        }
     }
 }