--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.interop/src/com/oracle/truffle/interop/SymbolInvokerImpl.java	Fri May 22 13:41:10 2015 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.interop;
+
+import com.oracle.truffle.api.CallTarget;
+import com.oracle.truffle.api.Truffle;
+import com.oracle.truffle.api.frame.FrameDescriptor;
+import com.oracle.truffle.api.frame.VirtualFrame;
+import com.oracle.truffle.api.interop.TruffleObject;
+import com.oracle.truffle.api.impl.SymbolInvoker;
+import com.oracle.truffle.api.nodes.RootNode;
+import com.oracle.truffle.interop.messages.Execute;
+import com.oracle.truffle.interop.messages.Receiver;
+import com.oracle.truffle.interop.node.ForeignObjectAccessNode;
+import java.io.IOException;
+
+public final class SymbolInvokerImpl extends SymbolInvoker {
+    static final FrameDescriptor UNUSED_FRAMEDESCRIPTOR = new FrameDescriptor();
+
+    @Override
+    protected Object invoke(Object symbol, Object... arr) throws IOException {
+        ForeignObjectAccessNode executeMain = ForeignObjectAccessNode.getAccess(Execute.create(Receiver.create(), arr.length));
+        CallTarget callTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(executeMain, (TruffleObject) symbol, arr));
+        VirtualFrame frame = Truffle.getRuntime().createVirtualFrame(arr, UNUSED_FRAMEDESCRIPTOR);
+        return callTarget.call(frame);
+    }
+
+    private static class TemporaryRoot extends RootNode {
+        @Child private ForeignObjectAccessNode foreignAccess;
+        private final TruffleObject function;
+        private final Object[] args;
+
+        public TemporaryRoot(ForeignObjectAccessNode foreignAccess, TruffleObject function, Object... args) {
+            this.foreignAccess = foreignAccess;
+            this.function = function;
+            this.args = args;
+        }
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            return foreignAccess.executeForeign(frame, function, args);
+        }
+    }
+
+}