From 1fd19c76727270f72265af627fae26c395039919 Mon Sep 17 00:00:00 2001
From: Brian Fiete <bfiete@gmail.com>
Date: Sun, 24 Oct 2021 09:00:04 -0700
Subject: [PATCH] Minlib index additions

---
 IDE/mintest/minlib/src/System/Range.bf | 46 ++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/IDE/mintest/minlib/src/System/Range.bf b/IDE/mintest/minlib/src/System/Range.bf
index 1337136d..837688e6 100644
--- a/IDE/mintest/minlib/src/System/Range.bf
+++ b/IDE/mintest/minlib/src/System/Range.bf
@@ -3,6 +3,52 @@ using System.Diagnostics;
 
 namespace System
 {
+	enum Index
+	{
+		case FromFront(int offset);
+		case FromEnd(int offset);
+	}
+
+	struct IndexRange
+	{
+		public Index mStart;
+		public Index mEnd;
+		public bool mIsClosed;
+
+		public this()
+		{
+			this = default;
+		}
+
+		public this(Index start, Index end, bool isClosed=true)
+		{
+			mStart = start;
+			mEnd = end;
+			mIsClosed = isClosed;
+		}
+
+		public this(int start, Index end, bool isClosed=true)
+		{
+			mStart = .FromFront(start);
+			mEnd = end;
+			mIsClosed = isClosed;
+		}
+
+		public this(Index start, int end, bool isClosed=true)
+		{
+			mStart = start;
+			mEnd = .FromFront(end);
+			mIsClosed = isClosed;
+		}
+
+		public this(int start, int end, bool isClosed=true)
+		{
+			mStart = .FromFront(start);
+			mEnd = .FromFront(end);
+			mIsClosed = isClosed;
+		}
+	}
+
 	struct Range
 	{
 		protected int mStart;