cpptoxml/parser/control.h

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
   4 ** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
   5 **
   6 ** This file is part of the Qt Script Generator project on Trolltech Labs.
   7 **
   8 ** This file may be used under the terms of the GNU General Public
   9 ** License version 2.0 as published by the Free Software Foundation
  10 ** and appearing in the file LICENSE.GPL included in the packaging of
  11 ** this file.  Please review the following information to ensure GNU
  12 ** General Public Licensing requirements will be met:
  13 ** http://www.trolltech.com/products/qt/opensource.html
  14 **
  15 ** If you are unsure which license is appropriate for your use, please
  16 ** review the following information:
  17 ** http://www.trolltech.com/products/qt/licensing.html or contact the
  18 ** sales department at sales@trolltech.com.
  19 **
  20 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  21 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  22 **
  23 ****************************************************************************/
  24
  25
  26 #ifndef CONTROL_H
  27 #define CONTROL_H
  28
  29 #include "symbol.h"
  30 #include "smallobject.h"
  31
  32 #include <QtCore/QHash>
  33
  34 struct Declarator;
  35 struct Type;
  36 class Lexer;
  37 class Parser;
  38
  39 struct Context
  40 {
  41   Context *parent;
  42
  43   inline void bind(const NameSymbol *name, Type *type)
  44   { symbol_table.insert(name, type); }
  45
  46   inline Type *resolve(const NameSymbol *name) const
  47   {
  48     if (Type *type = symbol_table.value(name))
  49       return type;
  50     else if (parent)
  51       return parent->resolve(name);
  52
  53     return 0;
  54   }
  55
  56   typedef QHash<const NameSymbol*, Type*> symbol_table_t;
  57
  58   symbol_table_t symbol_table;
  59 };
  60
  61 class Control
  62 {
  63 public:
  64   class ErrorMessage
  65   {
  66   public:
  67     ErrorMessage ():
  68       _M_line (0),
  69       _M_column (0) {}
  70
  71     inline int line () const { return _M_line; }
  72     inline void setLine (int line) { _M_line = line; }
  73
  74     inline int column () const { return _M_column; }
  75     inline void setColumn (int column) { _M_column = column; }
  76
  77     inline QString fileName () const { return _M_fileName; }
  78     inline void setFileName (const QString &fileName) { _M_fileName = fileName; }
  79
  80     inline QString message () const { return _M_message; }
  81     inline void setMessage (const QString &message) { _M_message = message; }
  82
  83   private:
  84     int _M_line;
  85     int _M_column;
  86     QString _M_fileName;
  87     QString _M_message;
  88   };
  89
  90   Control();
  91   ~Control();
  92
  93   inline bool skipFunctionBody() const { return _M_skipFunctionBody; }
  94   inline void setSkipFunctionBody(bool skip) { _M_skipFunctionBody = skip; }
  95
  96   Lexer *changeLexer(Lexer *lexer);
  97   Parser *changeParser(Parser *parser);
  98
  99   Lexer *currentLexer() const { return _M_lexer; }
 100   Parser *currentParser() const { return _M_parser; }
 101
 102   Context *current_context;
 103
 104   inline Context *currentContext() const
 105     { return current_context; }
 106
 107   void pushContext();
 108   void popContext();
 109
 110   Type *lookupType(const NameSymbol *name) const;
 111   void declare(const NameSymbol *name, Type *type);
 112
 113   inline const NameSymbol *findOrInsertName(const char *data, size_t count)
 114   { return name_table.findOrInsert(data, count); }
 115
 116   void declareTypedef(const NameSymbol *name, Declarator *d);
 117   bool isTypedef(const NameSymbol *name) const;
 118
 119   void reportError (const ErrorMessage &errmsg);
 120   QList<ErrorMessage> errorMessages () const;
 121   void clearErrorMessages ();
 122
 123 private:
 124   NameTable name_table;
 125   QHash<const NameSymbol*, Declarator*> stl_typedef_table;
 126   bool _M_skipFunctionBody;
 127   Lexer *_M_lexer;
 128   Parser *_M_parser;
 129
 130   QList<ErrorMessage> _M_error_messages;
 131 };
 132
 133 #endif // CONTROL_H
 134
 135 // kate: space-indent on; indent-width 2; replace-tabs on;