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Java > Open Source Codes > com > caucho > es > ESJavaWrapper


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  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.es;
30
31 import com.caucho.util.IntMap;
32
33 import java.util.HashMap JavaDoc;
34
35 /**
36  * JavaScript object
37  */
38 class ESJavaWrapper extends ESObject {
39   public Object JavaDoc value;
40
41   public ESString toStr() throws Throwable JavaDoc
42   {
43     return ESString.create(value == null ? "null" : value.toString());
44   }
45
46   public ESString toSource(IntMap map, boolean isLoopPath) throws Throwable JavaDoc
47   {
48     if (isLoopPath)
49       return null;
50     else
51       return toStr();
52   }
53
54   public ESBase toPrimitive(int hint) throws Throwable JavaDoc
55   {
56     if (value instanceof ESBase)
57       return (ESBase) value;
58     else
59       return toStr();
60   }
61
62   public Object JavaDoc toJavaObject() { return value; }
63   
64   public ESJavaWrapper wrap(Object JavaDoc value)
65   {
66     if (value == null)
67       throw new NullPointerException JavaDoc();
68
69     ESJavaWrapper child = (ESJavaWrapper) dup();
70     child.value = value;
71     child.init(className, prototype);
72
73     return child;
74   }
75
76   public boolean ecmaEquals(ESBase b)
77   {
78     if (! (b instanceof ESJavaWrapper))
79       return false;
80     else
81       return value == ((ESJavaWrapper) b).value;
82   }
83
84   protected ESJavaWrapper() {}
85   protected ESObject dup() { return new ESJavaWrapper(); }
86
87   protected void copy(HashMap JavaDoc refs, Object JavaDoc newObj)
88   {
89     ESJavaWrapper obj = (ESJavaWrapper) newObj;
90
91     super.copy(refs, obj);
92
93     obj.value = value;
94   }
95
96   protected ESJavaWrapper(ESBase proto, Object JavaDoc value)
97   {
98     super("javaWrapper", proto);
99
100     this.value = value;
101   }
102 }
103
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