--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/transform/GenerateOverrideVisitor.java	Wed Jun 17 10:58:08 2015 +0200
@@ -0,0 +1,61 @@
+/*
+ * 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.transform;
+
+import static com.oracle.truffle.dsl.processor.java.ElementUtils.*;
+
+import javax.lang.model.element.*;
+import javax.lang.model.type.*;
+
+import com.oracle.truffle.dsl.processor.java.*;
+import com.oracle.truffle.dsl.processor.java.model.*;
+
+public class GenerateOverrideVisitor extends CodeElementScanner<Void, Void> {
+
+    private final DeclaredType overrideType;
+
+    public GenerateOverrideVisitor(DeclaredType overrideType) {
+        this.overrideType = overrideType;
+    }
+
+    @Override
+    public Void visitExecutable(CodeExecutableElement e, Void p) {
+        if (!e.getModifiers().contains(Modifier.STATIC) && !e.getModifiers().contains(Modifier.PRIVATE)) {
+            String name = e.getSimpleName().toString();
+            TypeMirror[] params = e.getParameterTypes();
+
+            for (AnnotationMirror mirror : e.getAnnotationMirrors()) {
+                if (ElementUtils.typeEquals(overrideType, mirror.getAnnotationType())) {
+                    // already declared (may happen if method copied from super class)
+                    return super.visitExecutable(e, p);
+                }
+            }
+
+            if (isDeclaredMethodInSuperType(e.getEnclosingClass(), name, params)) {
+                e.addAnnotationMirror(new CodeAnnotationMirror(overrideType));
+            }
+        }
+        return super.visitExecutable(e, p);
+    }
+
+}