Mercurial > projects > qtd
annotate generator/parser/symbol.h @ 414:b2a803c73b89 default tip
Declare tabArray const.
| author | David Nadlinger <code@klickverbot.at> |
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| date | Fri, 06 May 2011 13:39:49 +0200 |
| parents | 09a0f1d048f2 |
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| 1 | 1 /**************************************************************************** |
| 2 ** | |
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3 ** Copyright (C) 1992-2009 Nokia. All rights reserved. |
| 1 | 4 ** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org> |
| 5 ** | |
| 6 ** This file is part of Qt Jambi. | |
| 7 ** | |
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8 ** Commercial Usage |
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9 Licensees holding valid Qt Commercial licenses may use this file in |
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10 accordance with the Qt Commercial License Agreement provided with the |
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11 Software or, alternatively, in accordance with the terms contained in |
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12 a written agreement between you and Nokia. |
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13 |
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14 GNU Lesser General Public License Usage |
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15 Alternatively, this file may be used under the terms of the GNU Lesser |
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16 General Public License version 2.1 as published by the Free Software |
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17 Foundation and appearing in the file LICENSE.LGPL included in the |
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18 packaging of this file. Please review the following information to |
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19 ensure the GNU Lesser General Public License version 2.1 requirements |
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20 will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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21 |
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22 In addition, as a special exception, Nokia gives you certain |
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23 additional rights. These rights are described in the Nokia Qt LGPL |
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24 Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this |
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25 package. |
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26 |
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27 GNU General Public License Usage |
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28 Alternatively, this file may be used under the terms of the GNU |
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29 General Public License version 3.0 as published by the Free Software |
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30 Foundation and appearing in the file LICENSE.GPL included in the |
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31 packaging of this file. Please review the following information to |
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32 ensure the GNU General Public License version 3.0 requirements will be |
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33 met: http://www.gnu.org/copyleft/gpl.html. |
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34 |
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35 If you are unsure which license is appropriate for your use, please |
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36 contact the sales department at qt-sales@nokia.com. |
| 1 | 37 |
| 38 ** | |
| 39 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE | |
| 40 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 41 ** | |
| 42 ****************************************************************************/ | |
| 43 | |
| 44 | |
| 45 #ifndef SYMBOL_H | |
| 46 #define SYMBOL_H | |
| 47 | |
| 48 #include <QtCore/QString> | |
| 49 #include <cstring> | |
| 50 | |
| 51 #include <QtCore/QHash> | |
| 52 #include <QtCore/QPair> | |
| 53 | |
| 54 struct NameSymbol | |
| 55 { | |
| 56 const char *data; | |
| 57 std::size_t count; | |
| 58 | |
| 59 inline QString as_string() const | |
| 60 { | |
| 61 return QString::fromUtf8(data, (int) count); | |
| 62 } | |
| 63 | |
| 64 inline bool operator == (const NameSymbol &other) const | |
| 65 { | |
| 66 return count == other.count | |
| 67 && std::strncmp(data, other.data, count) == 0; | |
| 68 } | |
| 69 | |
| 70 protected: | |
| 71 inline NameSymbol() {} | |
| 72 inline NameSymbol(const char *d, std::size_t c) | |
| 73 : data(d), count(c) {} | |
| 74 | |
| 75 private: | |
| 76 void operator = (const NameSymbol &); | |
| 77 | |
| 78 friend class NameTable; | |
| 79 }; | |
| 80 | |
| 81 inline uint qHash(const NameSymbol &r) | |
| 82 { | |
| 83 uint hash_value = 0; | |
| 84 | |
| 85 for (std::size_t i=0; i<r.count; ++i) | |
| 86 hash_value = (hash_value << 5) - hash_value + r.data[i]; | |
| 87 | |
| 88 return hash_value; | |
| 89 } | |
| 90 | |
| 91 inline uint qHash(const QPair<const char*, std::size_t> &r) | |
| 92 { | |
| 93 uint hash_value = 0; | |
| 94 | |
| 95 for (std::size_t i=0; i<r.second; ++i) | |
| 96 hash_value = (hash_value << 5) - hash_value + r.first[i]; | |
| 97 | |
| 98 return hash_value; | |
| 99 } | |
| 100 | |
| 101 class NameTable | |
| 102 { | |
| 103 public: | |
| 104 typedef QPair<const char *, std::size_t> KeyType; | |
| 105 typedef QHash<KeyType, NameSymbol*> ContainerType; | |
| 106 | |
| 107 public: | |
| 108 NameTable() {} | |
| 109 | |
| 110 ~NameTable() | |
| 111 { | |
| 112 qDeleteAll(_M_storage); | |
| 113 } | |
| 114 | |
| 115 inline const NameSymbol *findOrInsert(const char *str, std::size_t len) | |
| 116 { | |
| 117 KeyType key(str, len); | |
| 118 | |
| 119 NameSymbol *name = _M_storage.value(key); | |
| 120 if (!name) | |
| 121 { | |
| 122 name = new NameSymbol(str, len); | |
| 123 _M_storage.insert(key, name); | |
| 124 } | |
| 125 | |
| 126 return name; | |
| 127 } | |
| 128 | |
| 129 inline std::size_t count() const | |
| 130 { | |
| 131 return _M_storage.size(); | |
| 132 } | |
| 133 | |
| 134 private: | |
| 135 ContainerType _M_storage; | |
| 136 | |
| 137 private: | |
| 138 NameTable(const NameTable &other); | |
| 139 void operator = (const NameTable &other); | |
| 140 }; | |
| 141 | |
| 142 #endif // SYMBOL_H | |
| 143 | |
| 144 // kate: space-indent on; indent-width 2; replace-tabs on; |