--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/compiler/AbstractCompiler.java	Wed Jun 17 10:58:08 2015 +0200
@@ -0,0 +1,83 @@
+/*
+ * 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.compiler;
+
+import java.lang.reflect.*;
+
+public abstract class AbstractCompiler implements Compiler {
+
+    protected static Object method(Object o, String methodName) throws Exception {
+        Method method = o.getClass().getMethod(methodName);
+        method.setAccessible(true);
+        return method.invoke(o);
+    }
+
+    protected static Object method(Object o, String methodName, Class<?>[] paramTypes, Object... values) throws Exception {
+        Method method = o.getClass().getMethod(methodName, paramTypes);
+        method.setAccessible(true);
+        return method.invoke(o, values);
+    }
+
+    protected static Object field(Object o, String fieldName) throws Exception {
+        if (o == null) {
+            return null;
+        }
+        Class<?> clazz = o.getClass();
+        Field field = null;
+        try {
+            field = clazz.getField(fieldName);
+        } catch (NoSuchFieldException e) {
+            while (clazz != null) {
+                try {
+                    field = clazz.getDeclaredField(fieldName);
+                    break;
+                } catch (NoSuchFieldException e1) {
+                    clazz = clazz.getSuperclass();
+                }
+            }
+            if (field == null) {
+                throw e;
+            }
+        }
+        field.setAccessible(true);
+        return field.get(o);
+    }
+
+    protected static String parseHeader(String content) {
+        int index = content.indexOf("/*");
+        if (index == -1) {
+            return null;
+        }
+        if (!content.substring(0, index).trim().equals("")) {
+            // just whitespace before
+            return null;
+        }
+
+        int endIndex = content.indexOf("*/", index);
+        if (endIndex == -1) {
+            return null;
+        }
+        return content.substring(index, endIndex + 2);
+    }
+
+}