1 | /* |
2 | * Copyright (C) 2003,2007 Apple Computer, Inc |
3 | * |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Library General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2 of the License, or (at your option) any later version. |
8 | * |
9 | * This library is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Library General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Library General Public License |
15 | * along with this library; see the file COPYING.LIB. If not, write to |
16 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 | * Boston, MA 02110-1301, USA. |
18 | * |
19 | */ |
20 | |
21 | #ifndef KJS_COMMON_IDENTIFIERS_H |
22 | #define KJS_COMMON_IDENTIFIERS_H |
23 | |
24 | #include "identifier.h" |
25 | #include <wtf/Noncopyable.h> |
26 | |
27 | // List of property names, passed to a macro so we can do set them up various |
28 | // ways without repeating the list. |
29 | #define KJS_COMMON_IDENTIFIERS_EACH_PROPERTY_NAME(macro) \ |
30 | macro(arguments) \ |
31 | macro(callee) \ |
32 | macro(caller) \ |
33 | macro(constructor) \ |
34 | macro(fromCharCode) \ |
35 | macro(global) \ |
36 | macro(ignoreCase) \ |
37 | macro(index) \ |
38 | macro(input) \ |
39 | macro(lastIndex) \ |
40 | macro(length) \ |
41 | macro(message) \ |
42 | macro(multiline) \ |
43 | macro(name) \ |
44 | macro(prototype) \ |
45 | macro(source) \ |
46 | macro(toExponential) \ |
47 | macro(toFixed) \ |
48 | macro(toLocaleString) \ |
49 | macro(toPrecision) \ |
50 | macro(toString) \ |
51 | macro(valueOf) \ |
52 | macro(toJSON) \ |
53 | macro(configurable) \ |
54 | macro(value) \ |
55 | macro(writable) \ |
56 | macro(enumerable) \ |
57 | macro(get) \ |
58 | macro(set) \ |
59 | macro(toISOString) |
60 | |
61 | namespace KJS { |
62 | |
63 | class KJS_EXPORT CommonIdentifiers : Noncopyable { |
64 | |
65 | private: |
66 | CommonIdentifiers(); |
67 | |
68 | public: |
69 | static CommonIdentifiers* shared(); |
70 | |
71 | const Identifier nullIdentifier; |
72 | const Identifier underscoreProto; |
73 | |
74 | #define KJS_IDENTIFIER_DECLARE_PROPERTY_NAME_GLOBAL(name) const Identifier name; |
75 | KJS_COMMON_IDENTIFIERS_EACH_PROPERTY_NAME(KJS_IDENTIFIER_DECLARE_PROPERTY_NAME_GLOBAL) |
76 | #undef KJS_IDENTIFIER_DECLARE_PROPERTY_NAME_GLOBAL |
77 | }; |
78 | } // namespace KJS |
79 | |
80 | // ### better place in identifier.h. only here because of the shared null |
81 | namespace WTF { |
82 | // Provide hashing of Identifiers --- using the rep ptr |
83 | struct IdentHash { |
84 | static unsigned hash(const KJS::Identifier& key) { |
85 | return PtrHash<KJS::UString::Rep*>::hash(key.ustring().rep()); |
86 | } |
87 | static bool equal(const KJS::Identifier& a, const KJS::Identifier& b) { return a == b; } |
88 | static const bool safeToCompareToEmptyOrDeleted = false; |
89 | }; |
90 | |
91 | template<> struct DefaultHash<KJS::Identifier> { typedef IdentHash Hash; }; |
92 | |
93 | template<> struct HashTraits<KJS::Identifier> : GenericHashTraits<KJS::Identifier> { |
94 | static const bool emptyValueIsZero = false; |
95 | static const bool needsDestruction = true; |
96 | static void constructDeletedValue(KJS::Identifier* slot) { new (slot) KJS::Identifier(); } |
97 | static bool isDeletedValue(const KJS::Identifier& value) { return value.isNull(); } |
98 | }; |
99 | |
100 | } // namespace WTF |
101 | |
102 | #endif // KJS_COMMON_IDENTIFIERS_H |
103 | |
104 | |