1/*
2 * Copyright (C) 2012 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef PropertyName_h
27#define PropertyName_h
28
29#include "Identifier.h"
30#include "PrivateName.h"
31#include <wtf/Optional.h>
32
33namespace JSC {
34
35class PropertyName {
36public:
37 PropertyName(UniquedStringImpl* propertyName)
38 : m_impl(propertyName)
39 {
40 }
41
42 PropertyName(const Identifier& propertyName)
43 : PropertyName(propertyName.impl())
44 {
45 }
46
47 PropertyName(const PrivateName& propertyName)
48 : m_impl(propertyName.uid())
49 {
50 ASSERT(m_impl);
51 ASSERT(m_impl->isSymbol());
52 }
53
54 bool isNull() const { return !m_impl; }
55
56 bool isSymbol()
57 {
58 return m_impl && m_impl->isSymbol();
59 }
60
61 UniquedStringImpl* uid() const
62 {
63 return m_impl;
64 }
65
66 AtomicStringImpl* publicName() const
67 {
68 return (!m_impl || m_impl->isSymbol()) ? nullptr : static_cast<AtomicStringImpl*>(m_impl);
69 }
70
71 void dump(PrintStream& out) const
72 {
73 if (m_impl)
74 out.print(m_impl);
75 else
76 out.print("<null property name>");
77 }
78
79private:
80 UniquedStringImpl* m_impl;
81};
82
83inline bool operator==(PropertyName a, const Identifier& b)
84{
85 return a.uid() == b.impl();
86}
87
88inline bool operator==(const Identifier& a, PropertyName b)
89{
90 return a.impl() == b.uid();
91}
92
93inline bool operator==(PropertyName a, PropertyName b)
94{
95 return a.uid() == b.uid();
96}
97
98inline bool operator==(PropertyName a, const char* b)
99{
100 return equal(a.uid(), b);
101}
102
103inline bool operator!=(PropertyName a, const Identifier& b)
104{
105 return a.uid() != b.impl();
106}
107
108inline bool operator!=(const Identifier& a, PropertyName b)
109{
110 return a.impl() != b.uid();
111}
112
113inline bool operator!=(PropertyName a, PropertyName b)
114{
115 return a.uid() != b.uid();
116}
117
118ALWAYS_INLINE Optional<uint32_t> parseIndex(PropertyName propertyName)
119{
120 auto uid = propertyName.uid();
121 if (!uid)
122 return Nullopt;
123 if (uid->isSymbol())
124 return Nullopt;
125 return parseIndex(*uid);
126}
127
128}
129
130#endif
131