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#include "config.h"
27#include "ArrayValue.h"
28
29#include "Dictionary.h"
30#include <runtime/JSArray.h>
31
32using namespace JSC;
33
34namespace WebCore {
35
36ArrayValue::ArrayValue()
37    : m_exec(0)
38{
39}
40
41ArrayValue::ArrayValue(JSC::ExecState* exec, JSC::JSValue value)
42    : m_exec(exec)
43{
44    if (!value.isUndefinedOrNull() && isJSArray(value))
45        m_value = value;
46}
47
48ArrayValue& ArrayValue::operator=(const ArrayValue& other)
49{
50    m_exec = other.m_exec;
51    m_value = other.m_value;
52    return *this;
53}
54
55bool ArrayValue::isUndefinedOrNull() const
56{
57    return m_value.isEmpty() || m_value.isUndefinedOrNull();
58}
59
60bool ArrayValue::length(size_t& length) const
61{
62    if (isUndefinedOrNull())
63        return false;
64
65    JSArray* array = asArray(m_value);
66    length = array->length();
67    return true;
68}
69
70bool ArrayValue::get(size_t index, Dictionary& value) const
71{
72    if (isUndefinedOrNull())
73        return false;
74
75    JSValue indexedValue = asArray(m_value)->getIndex(m_exec, index);
76    if (indexedValue.isUndefinedOrNull() || !indexedValue.isObject())
77        return false;
78
79    value = Dictionary(m_exec, indexedValue);
80    return true;
81}
82
83} // namespace WebCore
84