summaryrefslogtreecommitdiffstats
path: root/languages/cpp/simpletypenamespace.cpp
blob: 07804e09cd1abdc6b5c0de42a4827bdaf782d8d2 (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
/***************************************************************************
copyright            : (C) 2006 by David Nolden
email                : david.nolden.kdevelop@art-master.de
***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
#include <tqtl.h>
#include <typeinfo>
#include "simpletypenamespace.h"
#include "simpletypecachebinder.h"

#include "safetycounter.h"

//#define PHYSICAL_IMPORT
//Necessary, because else nested members cannot search the correct scope
#define PHYSICALLY_IMPORT_NAMESPACES

extern SafetyCounter safetyCounter;

//SimpleTypeNamespace implementation

TypePointer SimpleTypeNamespace::clone() {
  return new SimpleTypeCachedNamespace( this );
}

SimpleTypeNamespace::SimpleTypeNamespace( const TQStringList& fakeScope, const TQStringList& realScope ) : SimpleTypeImpl( fakeScope ), m_currentSlaveId(0) {
  ifVerbose( dbg() << "\"" << str() << "\": created namespace-proxy with real scope \"" << realScope.join( "::" ) << "\"" << endl );
  SimpleType cm = SimpleType( realScope, HashedStringSet(), RepoCodeModel );
  SimpleType ct = SimpleType( realScope, HashedStringSet(), RepoCatalog );
  cm = SimpleType( cm->clone() );
  ct = SimpleType( ct->clone() );
  cm->setMasterProxy( this );
  ct->setMasterProxy( this );
  addImport( cm->desc() );
  addImport( ct->desc() );
}

SimpleTypeNamespace::SimpleTypeNamespace( const TQStringList& fakeScope ) : SimpleTypeImpl( fakeScope ), m_currentSlaveId(0) {
  ifVerbose( dbg() << "\"" << str() << "\": created namespace-proxy" << endl );
}

SimpleTypeNamespace::SimpleTypeNamespace( SimpleTypeNamespace* ns ) : SimpleTypeImpl( ns ), m_currentSlaveId(0) {
  ifVerbose( dbg() << "\"" << str() << "\": cloning namespace" << endl );
  m_aliases = ns->m_aliases;
  m_activeSlaves = ns->m_activeSlaves;
  m_activeSlaveGroups = ns->m_activeSlaveGroups;
}

void SimpleTypeNamespace::breakReferences() {
  m_aliases.clear();
  m_activeSlaves.clear();
  SimpleTypeImpl::breakReferences();
}


SimpleTypeImpl::MemberInfo SimpleTypeNamespace::findMember( TypeDesc name, MemberInfo::MemberType type ) {
  std::set<HashedString> ignore;
  SimpleTypeImpl::MemberInfo ret = findMember( name, type, ignore );
///chooseSpecialization( ret ); should not be necessary
  return ret;
}

TQValueList<TypePointer> SimpleTypeNamespace::getMemberClasses( const TypeDesc& name ) {
  std::set<HashedString> ignore;

  return getMemberClasses( name, ignore );
}

TQValueList<TypePointer>  SimpleTypeNamespace::getMemberClasses( const TypeDesc& name, std::set<HashedString>& ignore )  {
  HashedString myName = HashedString( scope().join( "::" ) +"%"+typeid( *this ).name() );
  if ( ignore.find( myName ) != ignore.end() || !safetyCounter )
    return TQValueList<TypePointer>();

  ignore.insert( myName );

  TQValueList<TypePointer> ret;

  SlaveList l = getSlaves( name.includeFiles() );
  for ( SlaveList::iterator it = l.begin(); it != l.end(); ++it ) {
    if (( *it ).first.first.resolved() ) {
      SimpleTypeNamespace* ns = dynamic_cast<SimpleTypeNamespace*>(( *it ).first.first.resolved().data() );
      if ( !ns ) {
        HashedString thatName = HashedString(( *it ).first.first.resolved()->scope().join( "::" ) +"%"+typeid( *( *it ).first.first.resolved() ).name() );
        if ( ignore.find( thatName ) != ignore.end() ) continue;
        ignore.insert( thatName );
        ret += ( *it ).first.first.resolved()->getMemberClasses( name );
      } else {
        ret += ns->getMemberClasses( name, ignore );

      }

    }
  }

  return ret;
}

SimpleTypeImpl::MemberInfo SimpleTypeNamespace::findMember( TypeDesc name, MemberInfo::MemberType type, std::set
      <HashedString>& ignore ) {
  MemberInfo mem;
  mem.name = "";
  mem.memberType = MemberInfo::NotFound;
  HashedString myName = HashedString( scope().join( "::" ) +"%"+typeid( *this ).name() );
  if ( ignore.find( myName ) != ignore.end() || !safetyCounter )
    return mem;
  ignore.insert( myName );

  SlaveList l = getSlaves( name.includeFiles() );

  ImportList m_aliasImports;

  AliasMap::iterator itt = m_aliases.find( name.name() );

  if ( itt != m_aliases.end() && !( *itt ).empty() ) {
    ifVerbose( dbg() << "\"" << str() << "\": namespace-sub-aliases \"" << name.name() << "\"" << "\" requested, locating targets" << endl );

    for ( ImportList::iterator it = ( *itt ).begin(); it != ( *itt ).end(); ++it ) {
      if ( !( /*name.includeFiles().size() < 1 ||*/ ( *it ).files <= name.includeFiles() ) ) continue; //filter the slave by the include-files

      ifVerbose( dbg() << "\"" << str() << "\": namespace-sub-aliases \"" << name.name() << "\": taking target \"" << ( *it ).import.fullNameChain() << "\"" << endl );
      /*TypeDesc d( (*it).import );
      d.setIncludeFiles( name.includeFiles() );*/
      m_aliasImports.insert( *it ); //@todo: what include-files should be used for searching the namespace?
      /*LocateResult l = locateDecType( d, SimpleTypeImpl::Normal, 0, SimpleTypeImpl::MemberInfo::Namespace );
      if ( !l || !l->resolved() || !dynamic_cast<SimpleTypeNamespace*>( l->resolved().data() ) ) {
      ifVerbose( dbg() << "\"" << str() << "\": namespace-sub-aliases \"" << name.name() << "\" -> \"" << ( *it ).import.fullNameChain() << "\" could not be resolved" << endl );
      } else {
      m_aliasImports.insert( Import(  d.includeFiles(), l, this ) );
      }*/
    }
  }

  for ( SlaveList::iterator it = l.begin(); it != l.end(); ++it ) {
    if ( !( *it ).first.first.resolved() )
      continue;
    if ( ignore.find( HashedString(( *it ).first.first.resolved()->scope().join( "::" ) +"%"+ typeid( *( *it ).first.first.resolved() ).name() ) ) != ignore.end() ) continue;

    ifVerbose( dbg() << "\"" << str() << "\": redirecting search for \"" << name.name() << "\" to \"" << ( *it ) .first.first.fullNameChain() << "\"" << endl );
    if ( !( *it ).first.first.resolved() ) {
      ifVerbose( dbg() << "\"" << str() << "\": while search for \"" << name.name() << "\": Imported namespace \"" << ( *it ) .first.first.fullNameChain() << "\" is not resolved(should have been resolved in updateAliases)" << endl );
      continue;
    }
    ifVerbose( dbg() << "\"Class-type: " << typeid( *( *it ).first.first.resolved().data() ).name() << ")" << endl );
    SimpleTypeNamespace* ns = dynamic_cast<SimpleTypeNamespace*>(( *it ).first.first.resolved().data() );

    if ( ns )
      mem = ns->findMember( name , type, ignore );
    else
      mem = ( *it ).first.first.resolved()->findMember( name, type );

    if ( mem ) {
      if ( mem.memberType != MemberInfo::Namespace ) {
#ifdef PHYSICAL_IMPORT
        TypePointer b = mem.build();
        if ( b && !( b->parent()->masterProxy().data() == this ) ) {
          b = b ->clone(); //expensive, cache is not shared
          b->setParent( this );

          mem.setBuilt( b );
        }
#else
        if( mem.memberType == MemberInfo::NestedType )
          chooseSpecialization( mem );
        TypePointer b = mem.build();
        if( b && b->parent() && b->parent()->masterProxy().data() == this )
          b->setParent( this );
#endif
        return mem;
      } else {
        TypePointer b = mem.build();

        if ( b )
          m_aliasImports.insert( Import( IncludeFiles(), b->desc(), TypePointer() ) );
        else
          ifVerbose( dbg() << "\"" << str() << "\": found namespace \"" << name.name() << "\", but it is not resolved" << endl );
      }
    }
  }

  if ( !m_aliasImports.empty() ) {
    return setupMemberInfo( name.fullNameList().join( "::" ), m_aliasImports );

  }

  return mem;
}

// LocateResult SimpleTypeNamespace::locateSlave( const SlaveList::const_iterator& target, const IncludeFiles& includeFiles ) {
//     for( SlaveList::const_iterator it = m_activeSlaves.begin(); it != target; ++it ) {
//
//     }
// }

SimpleTypeImpl::MemberInfo SimpleTypeNamespace::setupMemberInfo( const TQStringList& subName, const ImportList& imports ) {
  MemberInfo mem;
  mem.name = subName.join( "::" );
  mem.memberType = MemberInfo::NotFound;
  TQStringList sc = scope();
  sc += subName;
  mem.type = sc.join( "::" );
  mem.memberType = MemberInfo::Namespace;
  mem.setBuildInfo( new NamespaceBuildInfo( sc, imports ) );
  return mem;
}

///This must be optimized
void SimpleTypeNamespace::addAliasMap( const TypeDesc& name, const TypeDesc& alias, const IncludeFiles& files, bool recurse, bool symmetric, const TypePointer& perspective ) {
  Debug db;
  if ( !db ) {
    kdDebug( 9007 ) << str() << " addAliasMap: cannot add alias \"" << name.fullNameChain() << "\" -> \"" << alias.fullNameChain() << "\", recursion too deep" << endl;
    return ;
  }
  if ( name.next() ) kdDebug( 9007 ) << "addAliasMap warning: type-alias-name has order higher than one: " << name.fullNameChain() << ", only " << name.name() << " will be used" <<  endl;
  if ( name == alias )
    return ;

  if ( symmetric )
    addAliasMap( alias, name, files, recurse, false );

  invalidateSecondaryCache();
  invalidatePrimaryCache( true ); //Only not-found items are cleared updated here for performance-reasons(found items will stay cached)

  AliasMap::iterator it = m_aliases.find( name.name() );
  if ( it == m_aliases.end() )
    it = m_aliases.insert( name.name(), ImportList() );

  Import a( files, alias, perspective );
  std::pair< ImportList::const_iterator, ImportList::const_iterator > rng = ( *it ).equal_range( a );
  while ( rng.first != rng.second ) {
    if ( rng.first->files == files )
      return ; //The same alias, with the same files, has already been added.
    ++rng.first;
  }

  ( *it ).insert( a );
  ifVerbose( dbg() << "\"" << str() << "\": adding namespace-alias \"" << name.name() << ( !symmetric ? "\" -> \"" : "\" = \"" ) << alias.name() << "\" files:\n[ " << files.print().c_str() << "]\n" << endl );
  ifVerbose( if ( alias.resolved() ) dbg() << "Resolved type of the imported namespace: " << typeid( *alias.resolved() ).name() );

  if ( name.name().isEmpty() ) {
    addImport( alias, files, perspective );
  }
}

std::set<size_t> SimpleTypeNamespace::updateAliases( const IncludeFiles& files/*, bool isRecursion */) {
  std::set<size_t> possibleSlaves;
  if ( m_activeSlaves.empty() || !safetyCounter.ok() ) return possibleSlaves;
//   if( !isRecursion ) {
//     ///Test the cache
//     SlavesCache::const_iterator it = m_slavesCache.find( files );
//     if( it != m_slavesCache.end() && it->second.first == m_slavesCache.size() ) return; ///The cache already contains a valid entry, and the work is done
//   }

  m_activeSlaveGroups.findGroups( files, possibleSlaves );
  if( possibleSlaves.empty() ) return possibleSlaves;

  std::list<size_t> disabled;
  for( std::set<size_t>::const_reverse_iterator it = possibleSlaves.rbegin(); it != possibleSlaves.rend(); ++it ) {
    //Disable all slaves with higher ids
    SlaveMap::iterator current = m_activeSlaves.find( *it );
    if( current == m_activeSlaves.end() ) {
      kdDebug( 9007 ) << "ERROR" << endl;
    }

    SlaveDesc& d( current->second );

    if ( !d.first.first.resolved() ) {
      for( SlaveMap::const_iterator itr = current; itr != m_activeSlaves.end(); ++it ) {
        if( m_activeSlaveGroups.isDisabled( itr->first ) ) break; //stop searching when hitting the first disabled one(assuming that all behind are disabled too)
        disabled.push_back( itr->first );
        m_activeSlaveGroups.disableSet( itr->first );
      }

      TypeDesc descS = d.first.first;
      TypePointer p = d.second; //perspective

      HashedStringSet importIncludeFiles = d.first.second;

      if ( !p ) p = this;

      TypeDesc desc = p->locateDecType( descS, SimpleTypeImpl::Normal, 0, SimpleTypeImpl::MemberInfo::Namespace );
      if ( !desc.resolved() ) {
        ///If the namespace could not be found, help out by including the include-files of the current search
        descS.setIncludeFiles( descS.includeFiles() + files );
        desc = p->locateDecType( descS, SimpleTypeImpl::Normal, 0, SimpleTypeImpl::MemberInfo::Namespace );
      }
      if ( desc.resolved() ) {
        ///If exactly the same namespace was already imported use the earlier imported instance, so they can share a single cache
        ///@todo make more efficient.
        for ( SlaveMap::const_iterator it = m_activeSlaves.begin(); it != m_activeSlaves.end(); ++it ) {
          if (( *it ).second.first.first.resolved() && ( *it ).second.first.first.resolved()->scope() == desc.resolved()->scope() && typeid( *( *it ).second.first.first.resolved().data() ) == typeid( desc.resolved().data() ) ) {
            desc.setResolved(( *it ).second.first.first.resolved() );
            break;
          }
        }
#ifdef PHYSICALLY_IMPORT_NAMESPACES
        if ( desc.resolved()->masterProxy().data() != this ) {
          desc.setResolved( desc.resolved()->clone() ); //expensive, cache is not shared
          desc.resolved()->setMasterProxy( this ); //Possible solution: don't use this, simply set the parents of all found members correctly
        }
#endif
        d.first.first = desc;
      }
    }
  }

  for( std::list<size_t>::const_iterator it = disabled.begin(); it != disabled.end(); ++it ) {
    m_activeSlaveGroups.enableSet( *it );
  }

  return possibleSlaves;
}


void SimpleTypeNamespace::addAliases( TQString map, const IncludeFiles& files ) {
  while ( !map.isEmpty() ) {
    int mid = map.find( "=" );
    int mid2 = map.find( "<<" );
    int found = mid;
    int len = 1;
    if ( mid2 != -1 && ( mid2 < found || found == -1 ) ) {
      found = mid2;
      len = 2;
    }
    if ( found == -1 )
      break;

    int end = map.find( ";", found + len );
    if ( end == -1 ) {
      //break;
      end = map.length();
    }
    if ( end - ( found + len ) < 0 )
      break;

    addAliasMap( map.left( found ).stripWhiteSpace(), map.mid( found + len, end - found - len ).stripWhiteSpace(), files, true, found == mid );
    map = map.mid( end + 1 );
  }
}

void SimpleTypeNamespace::invalidatePrimaryCache( bool onlyNegative ) {
  //m_slavesCache.clear();
  SimpleTypeImpl::invalidatePrimaryCache( onlyNegative );
}

void SimpleTypeNamespace::addImport( const TypeDesc& import, const IncludeFiles& files, TypePointer perspective ) {
  //ifVerbose( dbg() << "
  if ( !perspective ) perspective = this;
  invalidateCache();
  TypeDesc d = import;
  if ( d.resolved() ) {
    #ifdef PHYSICALLY_IMPORT_NAMESPACES

    if( d.resolved()->masterProxy().data() != this ) {
      d.setResolved( d.resolved()->clone() ); //Expensive because of lost caching, think about how necessary this is
      d.resolved()->setMasterProxy( this );
    }
    #endif
  }

  m_activeSlaves[ ++m_currentSlaveId ] =  std::make_pair( std::make_pair( d, files ) , perspective );
  m_activeSlaveGroups.addSet( m_currentSlaveId, files );

  if( d.resolved() ) ///Must be called after the above, because it may insert new slaves, and the order in m_activeSlaves MUST be preserved
    d.resolved()->addAliasesTo( this );
}

bool SimpleTypeNamespace::hasNode() const {
  return true;
}

SimpleTypeNamespace::SlaveList SimpleTypeNamespace::getSlaves( const IncludeFiles& files ) {
  /*  ///Test the cache
  SlavesCache::const_iterator it = m_slavesCache.find( files );
  if( it != m_slavesCache.end() && it->second.first == m_activeSlaves.size() ) return it->second.second; ///The cache already contains a valid entry, and the work is done*/

  std::set<size_t> allSlaves = updateAliases( files );
  SlaveList ret;
#ifdef IMPORT_DEBUG
  for ( SlaveList::const_iterator it = m_activeSlaves.begin(); it != m_activeSlaves.end(); ++it ) {
#ifdef IMPORT_DEBUG
    ifVerbose( dbg() << "\"" << str() << "\": Checking whether \"" << (*it).second.first.first.fullNameChain() << "\" should be imported, current include-files: " << files.print().c_str() << "\nNeeded include-files: " << (*it).second.first.second.print().c_str() << "\n"; )
#endif
    if ( !(( *it ).second.first.second <= files ) ) {
#ifdef IMPORT_DEBUG
      ifVerbose( dbg() << "not imported." );
#endif
      continue;
    }
#ifdef IMPORT_DEBUG
    ifVerbose( dbg() << "imported." << endl );
#endif
    ret.push_back( *it.second );
  }
#else
  ifVerbose( dbg() << str() << " getSlaves() called for \n[ " << files.print().c_str() << endl );
  
  for( std::set<size_t>::const_iterator it = allSlaves.begin(); it != allSlaves.end(); ++it ) {
    SlaveMap::const_iterator itr = m_activeSlaves.find( *it );
    if( itr != m_activeSlaves.end() ) {
      ifVerbose( dbg() << str() << "getSlaves() returning " << (*itr).second.first.first.fullNameChain() << endl );
      ret.push_back( (*itr).second );
    } else {
      kdDebug( 9007 ) << "ERROR in getSlaves()";
    }
  }
#endif
  /*if( it == m_slavesCache.end() || it->second.first < m_activeSlaves.size()
    ) {
    m_slavesCache.insert( std::make_pair( files, std::make_pair( m_activeSlaves.size(), ret ) ) );
  }*/
  return ret;
}

//SimpleTypeNamespace::NamespaceBuildInfo implementation

TypePointer SimpleTypeNamespace::NamespaceBuildInfo::build() {
  if ( m_built )
    return m_built;
  m_built = new SimpleTypeCachedNamespace( m_fakeScope );
  for ( ImportList::iterator it = m_imports.begin(); it != m_imports.end(); ++it )  {
    TypeDesc i = ( *it ).import;
    if ( i.resolved() ) {
      //            i.setResolved( i.resolved()->clone() );
    }

    (( SimpleTypeCachedNamespace* ) m_built.data() ) ->addAliasMap( TypeDesc(), i, ( *it ).files, true, false, ( *it ).perspective );
  }
  return m_built;
}