--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/model/CodeElementScanner.java	Wed Jun 17 10:58:08 2015 +0200
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 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.dsl.processor.java.model;
+
+import java.util.*;
+
+import javax.lang.model.element.*;
+import javax.lang.model.util.*;
+
+public abstract class CodeElementScanner<R, P> extends ElementScanner7<R, P> {
+
+    @Override
+    public final R visitExecutable(ExecutableElement e, P p) {
+        if (!(e instanceof CodeExecutableElement)) {
+            throw new ClassCastException(e.toString());
+        }
+        return visitExecutable(cast(e, CodeExecutableElement.class), p);
+    }
+
+    public R visitExecutable(CodeExecutableElement e, P p) {
+        R ret = super.visitExecutable(e, p);
+        if (e.getBodyTree() != null) {
+            visitTree(e.getBodyTree(), p, e);
+        }
+        return ret;
+    }
+
+    @Override
+    public R visitVariable(VariableElement e, P p) {
+        if (e instanceof CodeVariableElement) {
+            CodeTree init = ((CodeVariableElement) e).getInit();
+            if (init != null) {
+                visitTree(init, p, e);
+            }
+        }
+        return super.visitVariable(e, p);
+    }
+
+    @Override
+    public R visitPackage(PackageElement e, P p) {
+        return super.visitPackage(e, p);
+    }
+
+    @Override
+    public final R visitType(TypeElement e, P p) {
+        return visitType(cast(e, CodeTypeElement.class), p);
+    }
+
+    public R visitType(CodeTypeElement e, P p) {
+        return super.visitType(e, p);
+    }
+
+    @Override
+    public R visitTypeParameter(TypeParameterElement e, P p) {
+        return super.visitTypeParameter(e, p);
+    }
+
+    private static <E> E cast(Element element, Class<E> clazz) {
+        return clazz.cast(element);
+    }
+
+    public void visitTree(CodeTree e, P p, Element parent) {
+        List<CodeTree> elements = e.getEnclosedElements();
+        if (elements != null) {
+            for (CodeTree tree : e.getEnclosedElements()) {
+                visitTree(tree, p, parent);
+            }
+        }
+    }
+
+    @SuppressWarnings("unused")
+    public void visitImport(CodeImport e, P p) {
+    }
+
+}