From 7d7f5a1afc3118e400c2bd07ff408e1ba6d90aa5 Mon Sep 17 00:00:00 2001
From: Sam Harwell <sam@tunnelvisionlabs.com>
Date: Sat, 23 Feb 2013 23:10:23 -0600
Subject: [PATCH] Add override BitSet.ToString

---
 runtime/CSharp/Antlr4.Runtime/Sharpen/BitSet.cs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/runtime/CSharp/Antlr4.Runtime/Sharpen/BitSet.cs b/runtime/CSharp/Antlr4.Runtime/Sharpen/BitSet.cs
index 2b87a3c21..bee94324c 100644
--- a/runtime/CSharp/Antlr4.Runtime/Sharpen/BitSet.cs
+++ b/runtime/CSharp/Antlr4.Runtime/Sharpen/BitSet.cs
@@ -280,5 +280,22 @@ namespace Sharpen
 
             return result.GetHashCode();
         }
+
+        public override string ToString()
+        {
+            StringBuilder builder = new StringBuilder();
+            builder.Append('{');
+
+            for (int i = NextSetBit(0); i >= 0; i = NextSetBit(i + 1))
+            {
+                if (builder.Length > 1)
+                    builder.Append(", ");
+
+                builder.Append(i);
+            }
+
+            builder.Append('}');
+            return builder.ToString();
+        }
     }
 }