--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.graal.runtime/src/com/oracle/max/graal/runtime/HotSpotField.java	Wed Jun 08 08:59:54 2011 +0200
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2011, 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.max.graal.runtime;
+
+import java.lang.reflect.*;
+
+import com.oracle.max.graal.compiler.*;
+import com.sun.cri.ci.CiConstant;
+import com.sun.cri.ci.CiKind;
+import com.sun.cri.ri.RiField;
+import com.sun.cri.ri.RiType;
+
+/**
+ * Represents a field in a HotSpot type.
+ */
+public class HotSpotField extends CompilerObject implements RiField {
+
+    private final RiType holder;
+    private final String name;
+    private final RiType type;
+    private final int offset;
+    private final int accessFlags;
+    private CiConstant constant;
+
+    public HotSpotField(Compiler compiler, RiType holder, String name, RiType type, int offset, int accessFlags) {
+        super(compiler);
+        this.holder = holder;
+        this.name = name;
+        this.type = type;
+        this.offset = offset;
+        this.accessFlags = accessFlags;
+    }
+
+    @Override
+    public int accessFlags() {
+        return accessFlags;
+    }
+
+    @Override
+    public CiConstant constantValue(CiConstant receiver) {
+        if (receiver == null) {
+            if (constant == null && holder.isResolved() && holder.isSubtypeOf(compiler.getVMEntries().getType(C1XOptions.class))) {
+                Field f;
+                try {
+                    f = C1XOptions.class.getField(name);
+                } catch (SecurityException e1) {
+                    return null;
+                } catch (NoSuchFieldException e1) {
+                    return null;
+                }
+                f.setAccessible(true);
+                if (Modifier.isStatic(f.getModifiers())) {
+                    CiKind kind = CiKind.fromJavaClass(f.getType());
+                    Object value;
+                    try {
+                        value = f.get(null);
+                    } catch (IllegalArgumentException e) {
+                        return null;
+                    } catch (IllegalAccessException e) {
+                        return null;
+                    }
+                    constant = CiConstant.forBoxed(kind, value);
+                }
+            }
+
+            // Constant part only valid for static fields.
+            return constant;
+        }
+        return null;
+    }
+
+    @Override
+    public RiType holder() {
+        return holder;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj instanceof HotSpotField) {
+            HotSpotField other = (HotSpotField) obj;
+            return other.offset == offset && other.holder.equals(holder());
+        }
+        return false;
+    }
+
+    @Override
+    public boolean isResolved() {
+        return offset != -1;
+    }
+
+    @Override
+    public CiKind kind() {
+        return type().kind();
+    }
+
+    @Override
+    public String name() {
+        return name;
+    }
+
+    @Override
+    public RiType type() {
+        return type;
+    }
+
+    public int offset() {
+        return offset;
+    }
+
+    @Override
+    public String toString() {
+        return "HotSpotField<" + holder.name() + "." + name + ">";
+    }
+
+}