1  /*
 2   * Copyright (C) 2006-2019 Apple 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
 6   * are met:
 7   * 1. Redistributions of source code must retain the above copyright
 8   *    notice, this list of conditions and the following disclaimer.
 9   * 2. Redistributions in binary form must reproduce the above copyright
10   *    notice, this list of conditions and the following disclaimer in the
11   *    documentation and/or other materials provided with the distribution.
12   *
13   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
24   */
25  
26  #include "config.h"
27  #include "JSCallbackConstructor.h"
28  
29  #include "APICallbackFunction.h"
30  #include "APICast.h"
31  #include "JSCInlines.h"
32  #include "JSLock.h"
33  
34  namespace JSC {
35  
36  const ClassInfo JSCallbackConstructor::s_info = { "CallbackConstructor", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCallbackConstructor) };
37  
38  JSCallbackConstructor::JSCallbackConstructor(JSGlobalObject* globalObject, Structure* structure, JSClassRef jsClass, JSObjectCallAsConstructorCallback callback)
39      : Base(globalObject->vm(), structure)
40      , m_class(jsClass)
41      , m_callback(callback)
42  {
43  }
44  
45  void JSCallbackConstructor::finishCreation(JSGlobalObject* globalObject, JSClassRef jsClass)
46  {
47      Base::finishCreation(globalObject->vm());
48      ASSERT(inherits(vm(), info()));
49      if (m_class)
50          JSClassRetain(jsClass);
51  }
52  
53  JSCallbackConstructor::~JSCallbackConstructor()
54  {
55      if (m_class)
56          JSClassRelease(m_class);
57  }
58  
59  void JSCallbackConstructor::destroy(JSCell* cell)
60  {
61      static_cast<JSCallbackConstructor*>(cell)->JSCallbackConstructor::~JSCallbackConstructor();
62  }
63  
64  static JSC_DECLARE_HOST_FUNCTION(constructJSCallbackConstructor);
65  
66  JSC_DEFINE_HOST_FUNCTION(constructJSCallbackConstructor, (JSGlobalObject* globalObject, CallFrame* callFrame))
67  {
68      return APICallbackFunction::constructImpl<JSCallbackConstructor>(globalObject, callFrame);
69  }
70  
71  CallData JSCallbackConstructor::getConstructData(JSCell*)
72  {
73      CallData constructData;
74      constructData.type = CallData::Type::Native;
75      constructData.native.function = constructJSCallbackConstructor;
76      return constructData;
77  }
78  
79  } // namespace JSC