--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/controlflow/SLReturnNode.java	Wed Jun 17 10:58:08 2015 +0200
@@ -0,0 +1,59 @@
+/*
+ * 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.nodes.controlflow;
+
+import com.oracle.truffle.api.frame.*;
+import com.oracle.truffle.api.nodes.*;
+import com.oracle.truffle.api.source.*;
+import com.oracle.truffle.sl.nodes.*;
+import com.oracle.truffle.sl.runtime.*;
+
+/**
+ * Implementation of the SL return statement. We need to unwind an unknown number of interpreter
+ * frames that are between this {@link SLReturnNode} and the {@link SLFunctionBodyNode} of the
+ * method we are exiting. This is done by throwing an {@link SLReturnException exception} that is
+ * caught by the {@link SLFunctionBodyNode#executeGeneric function body}. The exception transports
+ * the return value.
+ */
+@NodeInfo(shortName = "return", description = "The node implementing a return statement")
+public final class SLReturnNode extends SLStatementNode {
+
+    @Child private SLExpressionNode valueNode;
+
+    public SLReturnNode(SourceSection src, SLExpressionNode valueNode) {
+        super(src);
+        this.valueNode = valueNode;
+    }
+
+    @Override
+    public void executeVoid(VirtualFrame frame) {
+        Object result;
+        if (valueNode != null) {
+            result = valueNode.executeGeneric(frame);
+        } else {
+            /* Return statement that was not followed by an expression, so return the SL null value. */
+            result = SLNull.SINGLETON;
+        }
+        throw new SLReturnException(result);
+    }
+}