1 /*
2 * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "ScriptInstance.h"
33
34 #ifndef NDEBUG
35 #include "V8Proxy.h"
36 #endif
37 #include <wtf/Assertions.h>
38
39 namespace WebCore {
40
V8ScriptInstance()41 V8ScriptInstance::V8ScriptInstance()
42 {
43 }
44
V8ScriptInstance(v8::Handle<v8::Object> instance)45 V8ScriptInstance::V8ScriptInstance(v8::Handle<v8::Object> instance)
46 {
47 set(instance);
48 }
49
~V8ScriptInstance()50 V8ScriptInstance::~V8ScriptInstance()
51 {
52 clear();
53 }
54
instance()55 v8::Persistent<v8::Object> V8ScriptInstance::instance()
56 {
57 return m_instance;
58 }
59
clear()60 void V8ScriptInstance::clear()
61 {
62 if (m_instance.IsEmpty())
63 return;
64 #ifndef NDEBUG
65 V8GCController::unregisterGlobalHandle(this, m_instance);
66 #endif
67 m_instance.Dispose();
68 m_instance.Clear();
69 }
70
set(v8::Handle<v8::Object> instance)71 void V8ScriptInstance::set(v8::Handle<v8::Object> instance)
72 {
73 clear();
74 if (instance.IsEmpty())
75 return;
76
77 m_instance = v8::Persistent<v8::Object>::New(instance);
78 #ifndef NDEBUG
79 V8GCController::registerGlobalHandle(SCRIPTINSTANCE, this, m_instance);
80 #endif
81 }
82
83 } // namespace WebCore
84