--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.options/src/com/oracle/jvmci/options/OptionDescriptor.java	Tue May 26 23:21:15 2015 +0200
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2013, 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.jvmci.options;
+
+/**
+ * Describes the attributes of a static field {@linkplain Option option} and provides access to its
+ * {@linkplain OptionValue value}.
+ */
+public class OptionDescriptor {
+
+    protected final String name;
+    protected final Class<?> type;
+    protected final String help;
+    protected final OptionValue<?> option;
+    protected final Class<?> declaringClass;
+    protected final String fieldName;
+
+    public OptionDescriptor(String name, Class<?> type, String help, Class<?> declaringClass, String fieldName, OptionValue<?> option) {
+        this.name = name;
+        this.type = type;
+        this.help = help;
+        this.option = option;
+        this.declaringClass = declaringClass;
+        this.fieldName = fieldName;
+        assert !type.isPrimitive() : "must used boxed type instead of " + type;
+        option.setDescriptor(this);
+    }
+
+    /**
+     * Gets the type of values stored in the option. This will be the boxed type for a primitive
+     * option.
+     */
+    public Class<?> getType() {
+        return type;
+    }
+
+    /**
+     * Gets a descriptive help message for the option.
+     */
+    public String getHelp() {
+        return help;
+    }
+
+    /**
+     * Gets the name of the option. It's up to the client of this object how to use the name to get
+     * a user specified value for the option from the environment.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Gets the boxed option value.
+     */
+    public OptionValue<?> getOptionValue() {
+        return option;
+    }
+
+    public Class<?> getDeclaringClass() {
+        return declaringClass;
+    }
+
+    public String getFieldName() {
+        return fieldName;
+    }
+
+    /**
+     * Gets a description of the location where this option is stored.
+     */
+    public String getLocation() {
+        return getDeclaringClass().getName() + "." + getFieldName();
+    }
+}