--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/builtins/SLHelloEqualsWorldBuiltin.java	Fri Apr 11 11:53:11 2014 +0200
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2012, 2014, 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.sl.builtins;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.dsl.*;
+import com.oracle.truffle.api.frame.*;
+import com.oracle.truffle.api.frame.FrameInstance.FrameAccess;
+import com.oracle.truffle.api.nodes.*;
+
+/**
+ * This builtin sets the variable named "hello" in the caller frame to the string "world".
+ */
+@NodeInfo(shortName = "helloEqualsWorld")
+public abstract class SLHelloEqualsWorldBuiltin extends SLBuiltinNode {
+
+    @Specialization
+    public Object change() {
+        FrameInstance frameInstance = Truffle.getRuntime().getStackTrace().iterator().next();
+        Frame frame = frameInstance.getFrame(FrameAccess.READ_WRITE, false);
+        FrameSlot slot = frame.getFrameDescriptor().findOrAddFrameSlot("hello");
+        frame.setObject(slot, "world");
+        return null;
+    }
+}