1 files changed, 38 insertions, 0 deletions
diff --git a/ClojureCLR/Clojure/Clojure/Lib/Settable.cs b/ClojureCLR/Clojure/Clojure/Lib/Settable.cs
new file mode 100644
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--- /dev/null
+++ b/ClojureCLR/Clojure/Clojure/Lib/Settable.cs
@@ -0,0 +1,38 @@
+/**
+ *   Copyright (c) David Miller. All rights reserved.
+ *   The use and distribution terms for this software are covered by the
+ *   Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
+ *   which can be found in the file epl-v10.html at the root of this distribution.
+ *   By using this software in any fashion, you are agreeing to be bound by
+ * 	 the terms of this license.
+ *   You must not remove this notice, or any other, from this software.
+ **/
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace clojure.lang
+{
+    /// <summary>
+    ///  Represents an object with a value that can be set.
+    /// </summary>
+    public interface Settable
+    {
+        /// <summary>
+        /// Sets the value.
+        /// </summary>
+        /// <param name="val">The new value</param>
+        /// <returns>The new value.</returns>
+        /// <remarks>Can only be called in a transaction or with a binding on the stack, else throws an exception.</remarks>
+        object doSet(object val);
+
+        /// <summary>
+        /// Sets the root value.
+        /// </summary>
+        /// <param name="val">The new value</param>
+        /// <returns>The new value.</returns>
+        object doReset(object val);
+    }
+}