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1 /****************************************************************************
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2 **
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3 ** Copyright (C) 1992-2008 Nokia. All rights reserved.
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4 ** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
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5 **
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6 ** This file is part of Qt Jambi.
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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 *
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15 * GNU General Public License Usage
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16 * Alternatively, this file may be used under the terms of the GNU
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17 * General Public License versions 2.0 or 3.0 as published by the Free
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18 * Software Foundation and appearing in the file LICENSE.GPL included in
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19 * the packaging of this file. Please review the following information
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20 * to ensure GNU General Public Licensing requirements will be met:
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21 * http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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22 * http://www.gnu.org/copyleft/gpl.html. In addition, as a special
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23 * exception, Nokia gives you certain additional rights. These rights
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24 * are described in the Nokia Qt GPL Exception version 1.2, included in
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25 * the file GPL_EXCEPTION.txt in this package.
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26 *
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27 * Qt for Windows(R) Licensees
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28 * As a special exception, Nokia, as the sole copyright holder for Qt
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29 * Designer, grants users of the Qt/Eclipse Integration plug-in the
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30 * right for the Qt/Eclipse Integration to link to functionality
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31 * provided by Qt Designer and its related libraries.
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32 *
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33 *
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34 * If you are unsure which license is appropriate for your use, please
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35 * contact the sales department at qt-sales@nokia.com.
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36
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37 **
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38 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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39 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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40 **
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41 ****************************************************************************/
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42
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43
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44 #ifndef CONTROL_H
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45 #define CONTROL_H
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46
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47 #include "symbol.h"
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48 #include "smallobject.h"
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49
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50 #include <QtCore/QHash>
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51
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52 struct Declarator;
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53 struct Type;
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54 class Lexer;
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55 class Parser;
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56
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57 struct Context
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58 {
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59 Context *parent;
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60
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61 inline void bind(const NameSymbol *name, Type *type)
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62 { symbol_table.insert(name, type); }
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63
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64 inline Type *resolve(const NameSymbol *name) const
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65 {
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66 if (Type *type = symbol_table.value(name))
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67 return type;
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68 else if (parent)
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69 return parent->resolve(name);
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70
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71 return 0;
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72 }
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73
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74 typedef QHash<const NameSymbol*, Type*> symbol_table_t;
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75
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76 symbol_table_t symbol_table;
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77 };
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78
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79 class Control
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80 {
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81 public:
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82 class ErrorMessage
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83 {
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84 public:
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85 ErrorMessage ():
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86 _M_line (0),
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87 _M_column (0) {}
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88
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89 inline int line () const { return _M_line; }
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90 inline void setLine (int line) { _M_line = line; }
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91
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92 inline int column () const { return _M_column; }
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93 inline void setColumn (int column) { _M_column = column; }
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94
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95 inline QString fileName () const { return _M_fileName; }
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96 inline void setFileName (const QString &fileName) { _M_fileName = fileName; }
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97
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98 inline QString message () const { return _M_message; }
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99 inline void setMessage (const QString &message) { _M_message = message; }
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100
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101 private:
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102 int _M_line;
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103 int _M_column;
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104 QString _M_fileName;
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105 QString _M_message;
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106 };
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107
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108 Control();
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109 ~Control();
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110
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111 inline bool skipFunctionBody() const { return _M_skipFunctionBody; }
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112 inline void setSkipFunctionBody(bool skip) { _M_skipFunctionBody = skip; }
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113
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114 Lexer *changeLexer(Lexer *lexer);
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115 Parser *changeParser(Parser *parser);
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116
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117 Lexer *currentLexer() const { return _M_lexer; }
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118 Parser *currentParser() const { return _M_parser; }
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119
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120 Context *current_context;
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121
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122 inline Context *currentContext() const
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123 { return current_context; }
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124
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125 void pushContext();
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126 void popContext();
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127
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128 Type *lookupType(const NameSymbol *name) const;
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129 void declare(const NameSymbol *name, Type *type);
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130
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131 inline const NameSymbol *findOrInsertName(const char *data, size_t count)
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132 { return name_table.findOrInsert(data, count); }
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133
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134 void declareTypedef(const NameSymbol *name, Declarator *d);
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135 bool isTypedef(const NameSymbol *name) const;
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136
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137 void reportError (const ErrorMessage &errmsg);
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138 QList<ErrorMessage> errorMessages () const;
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139 void clearErrorMessages ();
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140
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141 private:
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142 NameTable name_table;
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143 QHash<const NameSymbol*, Declarator*> stl_typedef_table;
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144 bool _M_skipFunctionBody;
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145 Lexer *_M_lexer;
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146 Parser *_M_parser;
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147
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148 QList<ErrorMessage> _M_error_messages;
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149 };
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150
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151 #endif // CONTROL_H
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152
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153 // kate: space-indent on; indent-width 2; replace-tabs on;
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