1 files changed, 76 insertions, 0 deletions
diff --git a/Chalice/src/Chalice.cs b/Chalice/src/Chalice.cs
new file mode 100644
index 00000000..f4a804e7
--- /dev/null
+++ b/Chalice/src/Chalice.cs
@@ -0,0 +1,76 @@
+//-----------------------------------------------------------------------------
+//
+// Copyright (C) Microsoft Corporation.  All Rights Reserved.
+//
+//-----------------------------------------------------------------------------
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Chalice
+{
+    public class ImmutableList<E>
+    {
+        private List<E> list;
+        
+        public ImmutableList() {
+            list = new List<E>();
+        }
+
+        public ImmutableList(IEnumerable<E> elems)
+        {
+            list = new List<E>(elems);
+        }
+
+        public ImmutableList<E> Append(ImmutableList<E> other)
+        {
+            var res = new ImmutableList<E>();
+            res.list.AddRange(list);
+            res.list.AddRange(other.list);
+            return res;
+        }
+
+        public E At(int index)
+        {
+            return list[index];
+        }
+
+        public ImmutableList<E> Take(int howMany)
+        {
+            var res = new ImmutableList<E>(this.list.Take(howMany));
+            return res;
+        }
+
+        public ImmutableList<E> Drop(int howMany)
+        {
+            var res = new ImmutableList<E>(this.list.Skip(howMany));
+            return res;
+        }
+
+        public int Length
+        {
+            get
+            {
+                return list.Count;
+            }
+        }
+
+        public static ImmutableList<int> Range(int min, int max)
+        {
+            ImmutableList<int> l = new ImmutableList<int>();
+            for (int i = min; i < max; i++)
+            {
+                l.list.Add(i);
+            }
+            return l;
+        }
+    }
+
+  public class ChalicePrint {
+    public void Int(int x) {
+      System.Console.WriteLine(x);
+    }
+    public void Bool(bool x) {
+      System.Console.WriteLine(x);
+    }
+  }
+}