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Java > Open Source Codes > com > caucho > quercus > function > ReferenceMarshal


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.quercus.function;
31
32 import com.caucho.quercus.env.Env;
33 import com.caucho.quercus.env.Value;
34 import com.caucho.quercus.expr.Expr;
35
36 public class ReferenceMarshal extends Marshal
37 {
38   public static final Marshal MARSHAL = new ReferenceMarshal();
39   
40   public boolean isReadOnly()
41   {
42     return false;
43   }
44
45   public boolean isReference()
46   {
47     return true;
48   }
49
50   public Object JavaDoc marshal(Env env, Expr expr, Class JavaDoc expectedClass)
51   {
52     // quercus/0d1k
53 return expr.evalRef(env);
54   }
55
56   public Value unmarshal(Env env, Object JavaDoc value)
57   {
58     throw new UnsupportedOperationException JavaDoc();
59   }
60 }
61
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