summaryrefslogtreecommitdiffstats
path: root/lib/cppparser/macro.h
blob: 03e76984282200f34ae8de0309585aceda8317e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
/***************************************************************************
   copyright            : (C) 2006 by David Nolden
   email                : [email protected]
***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef MACRO_H
#define MACRO_H

#include <qpair.h>
#include <qvaluestack.h>
#include <qstringlist.h>
#include <qcstring.h>
#include <qdatastream.h>
#include <qmap.h>
#include <qdatetime.h>
#include <qvaluelist.h>
#include <map>
#include <set>
#include <hashedstring.h>
#include <ksharedptr.h>
#include <codemodel.h>
#include <ext/hash_map>

//This files should be renamed to something like "helpers.h"

/**
 * Encapsulates a problem in a piece of source code.
 */
class Problem {
  public:
    enum
    {
      Level_Error = 0,   ///< Indicates an error that will prevent the code from compiling
      Level_Warning,   ///< Indicates a warning
      Level_Todo,   ///< Indicates there is still something left to do
      Level_Fixme ///< Indicates that something needs to be fixed
  };

  public:
    Problem() {}
    Problem( const Problem& source )
        : m_text( source.m_text ), m_line( source.m_line ),
    m_column( source.m_column ), m_level( source.m_level ), m_file( source.m_file ) {}
    Problem( const QString& text, int line, int column, int level = Level_Error )
        : m_text( text ), m_line( line ), m_column( column ), m_level( level ) {}

    Problem( const Problem& source, bool /*threadSafeClone*/ )
      : m_text( QString::fromUtf8( source.m_text.utf8().data() ) ), m_line( source.m_line ),
        m_column( source.m_column ), m_level( source.m_level ), m_file( QString::fromUtf8( source.m_file.utf8().data() ) ) {}
        
    Problem& operator = ( const Problem& source ) {
      m_text = source.m_text;
      m_line = source.m_line;
      m_column = source.m_column;
      m_level = source.m_level;
      m_file = source.m_file;
      return ( *this );
    }
    
    void setFileName( const QString& fileName ) {
        m_file = fileName;
    }

    bool operator == ( const Problem& p ) const {
      return m_text == p.m_text && m_line == p.m_line && m_column == p.m_column && m_level == p.m_level && m_file == p.m_file;
    }
    
    /** Get the filename in which the problem was encountered */
    QString fileName() const {
        return m_file;
    }

    /** Get the text for the problem */
    QString text() const {
      return m_text;
    }
    /** Get the line number of the problem */
    int line() const {
      return m_line;
    }
    /** Get the column of the problem */
    int column() const {
      return m_column;
    }
    /**
     * Get the seriousness of the problem. There are four possibilities:
     * \li Error
     * \li Warning
     * \li Todo
     * \li Fixme
     */
    int level() const {
      return m_level;
    }

  private:
    QString m_text;
    int m_line;
    int m_column;
    int m_level;
    QString m_file;
};


/**
 * A datatype that represents a preprocessor macro.
 * Most of the functions in this class need to be inline, so we do not have to import cppparser to many modules. The other solution would be moving macro into interfaces.
 */
class Macro {
  public:
    typedef QString Argument;

  public:
      Macro( bool hasArguments = false ) : m_idHashValid( false ), m_valueHashValid( false ), m_line( 0 ), m_column( 0 ), m_hasArguments( hasArguments ), m_isUndefMacro( false ) {}
      Macro( const QString &n, const QString &b ) : m_idHashValid( false ), m_valueHashValid( false ), m_name( n ), m_line( 0 ), m_column( 0 ), m_body( b ), m_hasArguments( false ), m_isUndefMacro( false ) {}

      //Sorts the macros by their hash-value, then by their name.
    struct NameArgCompare {
      bool operator () ( const Macro& lhs, const Macro& rhs ) const {
          size_t lhash = lhs.idHash();
          size_t rhash = rhs.idHash();
          if( lhash < rhash ) return true;
          else if( lhash > rhash ) return false;
          
        int df = lhs.m_name.compare( rhs.m_name );
        if ( df < 0 )
          return true;
        if ( df == 0 ) {
          if ( !lhs.m_hasArguments && rhs.m_hasArguments ) {
            return true;
          } else if ( lhs.m_hasArguments == rhs.m_hasArguments ) {
            return lhs.m_argumentList.count() < rhs.m_argumentList.count();

          } else {
            return false;
          }
        }
        return false;
      }
    };
    struct NameCompare {
      bool operator () ( const Macro& lhs, const Macro& rhs ) const {
          size_t lhash = lhs.idHash();
          size_t rhash = rhs.idHash();
          if( lhash < rhash ) return true;
          else if( lhash > rhash ) return false;
          
        int df = lhs.m_name.compare( rhs.m_name );
        return df < 0;
      }
    };

    struct NameArgHash {
        size_t operator () ( const Macro& macro ) const {
            return macro.idHash();
        }
    };
    
    struct NameArgEqual {
        bool operator () ( const Macro& lhs, const Macro& rhs ) const {
            int df = lhs.m_name.compare( rhs.m_name );
            if ( df == 0 ) {
                if ( lhs.m_hasArguments != rhs.m_hasArguments ) {
                    return false;
                } else {
                    if( lhs.m_argumentList.count() != rhs.m_argumentList.count() ) return false;
                    /*QStringList::const_iterator it2 = rhs.m_argumentList.begin();
                    for( QStringList::const_iterator it = lhs.m_argumentList.begin(); it != lhs.m_argumentList.end(); ) {
                        if( *it != *it2 ) return false;

                        ++it;
                        ++it2;
                    }*/
                    return true;

                }
            }
            return false;
        }
    };

    Macro( const Macro& source )
        : m_idHashValid( source.m_idHashValid ), m_valueHashValid( source.m_valueHashValid ), m_idHash( source.m_idHash ), m_valueHash( source.m_valueHash ), m_name( source.m_name ),
        m_fileName( source.m_fileName ),
        m_line( source.m_line ),
        m_column( source.m_column ),
        m_body( source.m_body ),
        m_hasArguments( source.m_hasArguments ),
        m_argumentList( source.m_argumentList ), m_isUndefMacro( source.m_isUndefMacro ) {}

    Macro& operator = ( const Macro& source ) {
        m_idHashValid = source.m_idHashValid;
        m_valueHashValid = source.m_valueHashValid;
        m_idHash = source.m_idHash;
        m_valueHash = source.m_valueHash;
        m_name = source.m_name;
        m_fileName = source.m_fileName;
        m_line = source.m_line;
        m_column = source.m_column;
        m_body = source.m_body;
        m_hasArguments = source.m_hasArguments;
        m_argumentList = source.m_argumentList;
        m_isUndefMacro = source.m_isUndefMacro;
        return *this;
    }

    bool operator == ( const Macro& source ) const {
        if( !m_idHashValid || !m_valueHashValid ) computeHash();
        if( !source.m_idHashValid || !source.m_valueHashValid ) source.computeHash();
        
        if( m_idHash != source.m_idHash ) return false;
        if( m_valueHash != source.m_valueHash ) return false;
        
        return m_name == source.m_name &&
        m_fileName == source.m_fileName &&
        m_body == source.m_body &&
        m_hasArguments == source.m_hasArguments &&
                m_argumentList == source.m_argumentList && m_isUndefMacro == source.m_isUndefMacro;
    }

    void read( QDataStream& stream ) {
        Q_INT8 i;
        stream >> i; m_idHashValid = i;
        stream >> i; m_valueHashValid = i;
        stream >> i; m_hasArguments = i;
        
        stream >> m_idHash;
        stream >> m_valueHash;
        stream >> m_name;
        stream >> m_line;
        stream >> m_column;
        stream >> m_body;
        stream >> m_fileName;
        stream >> m_argumentList;
    }
    
    void write( QDataStream& stream ) const {
        Q_INT8 i;
        i = m_idHashValid; stream << i;
        i = m_valueHashValid; stream << i;
        i = m_hasArguments; stream << i;
        
        stream << m_idHash;
        stream << m_valueHash;
        stream << m_name;
        stream << m_line;
        stream << m_column;
        stream << m_body;
        stream << m_fileName;
        stream << m_argumentList;
    }
    
    /** Get the name for this macro */
    QString name() const {
      return m_name;
    }
    /** Set the name for this macro */
    void setName( const QString& name ) {
      m_name = name;
      invalidateHash();
    }

    /** Get the file name that contains this macro */
    QString fileName() const {
      return m_fileName;
    }
    /** Set the file name that contains this macro */
    void setFileName( const QString& fileName ) {
      m_fileName = fileName;
      invalidateHash();
    }

    /** Get the line the macro is defined on */
    int line() const {
      return m_line;
    }
    /** Set the line the macro is defined on */
    void setLine( int line ) {
      m_line = line;
    }

    /** Get the column the macro starts at */
    int column() const {
      return m_column;
    }
    /** Set the column the macro starts at */
    void setColumn( int column ) {
      m_column = column;
    }

    /** Get the body of the macro */
    QString body() const {
      return m_body;
    }
    /** Set the body of the macro */
    void setBody( const QString& body ) {
      m_body = body;
      invalidateHash();
    }

    /** This is used so the lexer does not have to remove macros that should really stay(they are just temporarily shadowed by an isUndef-macro */
    bool isUndef() const {
      return m_isUndefMacro;
    };

    void setUndef() {
      m_isUndefMacro = true;
      invalidateHash();
    };

    /** Check whether the macro has arguments that are passed to it */
    bool hasArguments() const {
      return m_hasArguments;
    }
    void setHasArguments( bool hasArguments ) {
      m_hasArguments = hasArguments;
      invalidateHash();
    }
    /** Get a list of arguments passed to this macro */
    QValueList<Argument> argumentList() const {
      return m_argumentList;
    }

    /** Clear the list of arguments this macro has */
    void clearArgumentList() {
      m_argumentList.clear();
      m_hasArguments = false;
      invalidateHash();
    }
    /** Add an argument to this macro */
    void addArgument( const Argument& argument ) {
      m_argumentList << argument;
    }
    /** Add a list of arguments to this macro */
    void addArgumentList( const QValueList<Argument>& arguments ) {
      m_argumentList += arguments;
      invalidateHash();
    }

    ///This hash respects macro-name and argument-count
    size_t idHash() const {
        if( !m_idHashValid ) computeHash();
        return m_idHash;
    }

    ///This hash respects body and if it is an undef-macro 
    size_t valueHash() const {
        if( !m_valueHashValid ) computeHash();
        return m_valueHash;
    }
    
  private:
    inline void invalidateHash() const {
        m_idHashValid = m_valueHashValid = false;
    }
    
    void computeHash() const {
        m_idHash = 7 * ( HashedString::hashString( m_name ) );
        int a = 1;
      //m_idHash += 31 * m_argumentList.count();
    
        m_valueHash = 27 * ( HashedString::hashString( m_body ) +  (m_isUndefMacro ? 1 : 0 ) );

        for( QValueList<Argument>::const_iterator it = m_argumentList.begin(); it != m_argumentList.end(); ++it ) {
            a *= 19;
            m_valueHash += a * HashedString::hashString( *it );
        }
        m_valueHashValid = true;
        m_idHashValid = true;
    }
      
    mutable bool m_idHashValid;
    mutable bool m_valueHashValid;
    mutable size_t m_idHash; //Hash that represents the ids of all macros
    mutable size_t m_valueHash; //Hash that represents the values of all macros

    QString m_name;
    QString m_fileName;
    int m_line;
    int m_column;
    QString m_body;
    bool m_hasArguments;
    QStringList m_argumentList; //While identification, only the count plays a role, not the values.
    bool m_isUndefMacro;
    friend class NameCompare;
    friend class NameArgEqual;
};

class MacroSet {
    public:
        //typedef __gnu_cxx::hash_set< Macro, Macro::NameArgHash, Macro::NameArgEqual > Macros;
        typedef std::set< Macro, Macro::NameCompare > Macros;
        MacroSet() : m_idHashValid( false ), m_valueHashValid( false ) {
        }

        void addMacro( const Macro& macro );

        void read( QDataStream& stream )  {
            //stream >> m_idHashValid >> m_idHash >> m_valueHashValid >> m_valueHash;
            m_idHashValid = false;
            m_valueHashValid = false;
            int cnt;
            stream >> cnt;
            m_usedMacros.clear();
            Macro m;
            for( int a = 0; a < cnt; a++ ) {
                m.read( stream );
                m_usedMacros.insert( m );
            }
        }

        void write( QDataStream& stream ) const {
            //stream << m_idHashValid << m_idHash << m_valueHashValid << m_valueHash;
            stream << int( m_usedMacros.size() );
            for( Macros::const_iterator it = m_usedMacros.begin(); it != m_usedMacros.end(); ++it ) {
                (*it).write( stream );
            }
        }

        bool hasMacro( const QString& name ) const;
        bool hasMacro( const HashedString& name ) const;
        Macro macro( const QString& name ) const;
        
        size_t idHash() const;
        size_t valueHash() const;

        const Macros& macros() const {
          return m_usedMacros;
        }
        
        void merge( const MacroSet& macros );
    private:
        void computeHash() const;
        Macros m_usedMacros;
        mutable bool m_idHashValid;
        mutable bool m_valueHashValid;
        mutable size_t m_idHash; //Hash that represents the ids of all macros
        mutable size_t m_valueHash; //Hash that represents the values of all macros

        friend class Driver;
};

#endif