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1 /*
2  * Copyright (C) 2012 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
6  * are met:
7  *
8  * 1.  Redistributions of source code must retain the above copyright
9  *     notice, this list of conditions and the following disclaimer.
10  * 2.  Redistributions in binary form must reproduce the above copyright
11  *     notice, this list of conditions and the following disclaimer in the
12  *     documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef ArrayValue_h
27 #define ArrayValue_h
28 
29 #include "wtf/Assertions.h"
30 #include <v8.h>
31 
32 namespace WebCore {
33 
34 class Dictionary;
35 
36 class ArrayValue {
37 public:
ArrayValue()38     ArrayValue() : m_isolate(0) { }
ArrayValue(const v8::Local<v8::Array> & array,v8::Isolate * isolate)39     explicit ArrayValue(const v8::Local<v8::Array>& array, v8::Isolate* isolate)
40         : m_array(array)
41         , m_isolate(isolate)
42     {
43         ASSERT(m_isolate);
44     }
~ArrayValue()45     ~ArrayValue() { }
46 
47     ArrayValue& operator=(const ArrayValue&);
48 
49     bool isUndefinedOrNull() const;
50 
51     bool length(size_t&) const;
52     bool get(size_t index, Dictionary&) const;
53 
54 private:
55     // This object can only be used safely when stack allocated because of v8::Local.
56     static void* operator new(size_t);
57     static void* operator new[](size_t);
58     static void operator delete(void *);
59 
60     v8::Local<v8::Array> m_array;
61     v8::Isolate* m_isolate;
62 };
63 
64 }
65 
66 #endif // ArrayValue_h
67