--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/nodes/serial/TestSerializerConstantPool.java	Wed Oct 02 15:33:08 2013 +0200
@@ -0,0 +1,113 @@
+/*
+ * 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.api.test.nodes.serial;
+
+import java.util.*;
+
+import com.oracle.truffle.api.nodes.serial.*;
+
+class TestSerializerConstantPool implements SerializerConstantPool {
+
+    private final Map<Integer, Object> int2object = new HashMap<>();
+    private final Map<Object, Integer> object2int = new HashMap<>();
+
+    private int index;
+
+    public void setIndex(int index) {
+        this.index = index;
+    }
+
+    public int getIndex() {
+        return index;
+    }
+
+    @Override
+    public double getDouble(int cpi) {
+        return (Double) int2object.get(cpi);
+    }
+
+    @Override
+    public float getFloat(int cpi) {
+        return (Float) int2object.get(cpi);
+    }
+
+    @Override
+    public Object getObject(Class<?> clazz, int cpi) throws UnsupportedConstantPoolTypeException {
+        return int2object.get(cpi);
+    }
+
+    @Override
+    public int putDouble(double value) {
+        return put(value);
+    }
+
+    public int putFloat(float value) {
+        return put(value);
+    }
+
+    public int putObject(java.lang.Class<?> clazz, Object value) throws UnsupportedConstantPoolTypeException {
+        return put(value);
+    }
+
+    @Override
+    public int putClass(Class<?> clazz) {
+        return put(clazz);
+    }
+
+    private int put(Object o) {
+        Integer currentIndex = object2int.get(o);
+        if (currentIndex == null) {
+            int2object.put(index, o);
+            object2int.put(o, index);
+            return index++;
+        } else {
+            return currentIndex;
+        }
+    }
+
+    @Override
+    public Class<?> getClass(int idx) {
+        return (Class<?>) int2object.get(idx);
+    }
+
+    @Override
+    public int putInt(int constant) {
+        return put(constant);
+    }
+
+    @Override
+    public int getInt(int idx) {
+        return (Integer) int2object.get(idx);
+    }
+
+    @Override
+    public long getLong(int idx) {
+        return (Long) int2object.get(idx);
+    }
+
+    @Override
+    public int putLong(long value) {
+        return put(value);
+    }
+
+}