--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/objects/FloatStorageLocation.java	Mon Jan 06 17:12:09 2014 +0000
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package com.oracle.truffle.ruby.runtime.objects;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.nodes.*;
+import com.oracle.truffle.ruby.runtime.*;
+
+/**
+ * A storage location for Floats.
+ */
+public class FloatStorageLocation extends PrimitiveStorageLocation {
+
+    public FloatStorageLocation(ObjectLayout objectLayout, long offset, int mask) {
+        super(objectLayout, offset, mask);
+    }
+
+    @Override
+    public Object read(RubyBasicObject object, boolean condition) {
+        try {
+            return readFloat(object, condition);
+        } catch (UnexpectedResultException e) {
+            return e.getResult();
+        }
+    }
+
+    public double readFloat(RubyBasicObject object, boolean condition) throws UnexpectedResultException {
+        if (isSet(object)) {
+            return CompilerDirectives.unsafeGetDouble(object, offset, condition, this);
+        } else {
+            throw new UnexpectedResultException(NilPlaceholder.INSTANCE);
+        }
+    }
+
+    @Override
+    public void write(RubyBasicObject object, Object value) throws GeneralizeStorageLocationException {
+        if (value instanceof Double) {
+            writeFloat(object, (double) value);
+        } else if (value instanceof NilPlaceholder) {
+            markAsUnset(object);
+        } else {
+            throw new GeneralizeStorageLocationException();
+        }
+    }
+
+    public void writeFloat(RubyBasicObject object, Double value) {
+        CompilerDirectives.unsafePutDouble(object, offset, value, null);
+        markAsSet(object);
+    }
+
+    @Override
+    public Class getStoredClass() {
+        return Double.class;
+    }
+
+}