1/*
2 * Copyright (c) 2010 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 "ScriptArguments.h"
33
34#include "ScriptValue.h"
35
36namespace WebCore {
37
38PassRefPtr<ScriptArguments> ScriptArguments::create(ScriptState* scriptState, Vector<ScriptValue>& arguments)
39{
40    return adoptRef(new ScriptArguments(scriptState, arguments));
41}
42
43ScriptArguments::ScriptArguments(ScriptState* scriptState, Vector<ScriptValue>& arguments)
44    : m_scriptState(scriptState)
45{
46    m_arguments.swap(arguments);
47}
48
49ScriptArguments::~ScriptArguments()
50{
51}
52
53const ScriptValue &ScriptArguments::argumentAt(size_t index) const
54{
55    ASSERT(m_arguments.size() > index);
56    return m_arguments[index];
57}
58
59ScriptState* ScriptArguments::globalState() const
60{
61    return m_scriptState.get();
62}
63
64bool ScriptArguments::getFirstArgumentAsString(String& result, bool checkForNullOrUndefined)
65{
66    if (!argumentCount())
67        return false;
68
69    const ScriptValue& value = argumentAt(0);
70    if (checkForNullOrUndefined && (value.isNull() || value.isUndefined()))
71        return false;
72
73    if (!globalState()) {
74        ASSERT_NOT_REACHED();
75        return false;
76    }
77
78    result = value.toString(globalState());
79    return true;
80}
81
82bool ScriptArguments::isEqual(ScriptArguments* other) const
83{
84    if (!other)
85        return false;
86
87    if (m_arguments.size() != other->m_arguments.size())
88        return false;
89    if (!globalState() && m_arguments.size())
90        return false;
91
92    for (size_t i = 0; i < m_arguments.size(); ++i) {
93        if (!m_arguments[i].isEqual(other->globalState(), other->m_arguments[i]))
94            return false;
95    }
96    return true;
97}
98
99} // namespace WebCore
100