--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.api.codegen/src/com/oracle/truffle/api/codegen/NodeContainer.java	Fri Jun 28 12:19:51 2013 +0200
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.api.codegen;
+
+import java.lang.annotation.*;
+
+import com.oracle.truffle.api.nodes.*;
+
+/**
+ * A node container can be used to enable Truffle-DSL in classes which do not extend {@link Node}.
+ * Compared to normal {@link Node} implementation the nodes are not identified by a class but by
+ * their method name. There are cases were method signatures are matching exactly but should be in
+ * the same {@link Node}. In this case use {@link NodeId} to disambiguate such cases.
+ */
+@Retention(RetentionPolicy.CLASS)
+@Target({ElementType.TYPE})
+public @interface NodeContainer {
+
+    /** The node class to use as base class for {@link Node} definitions grouped by method names. */
+    Class<? extends Node> value();
+
+}