CppBindings.cpp 21.6 KB
Newer Older
1
2
3
4
5
6
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
hjk's avatar
hjk committed
26
** contact the sales department at http://qt.nokia.com/contact.
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
**
**************************************************************************/

#include "CppBindings.h"
#include "CppDocument.h"
#include "Overview.h"

#include <CoreTypes.h>
#include <Symbols.h>
#include <Literals.h>
#include <Names.h>
#include <Scope.h>
#include <Control.h>
#include <SymbolVisitor.h>

#include <QtDebug>

using namespace CPlusPlus;


////////////////////////////////////////////////////////////////////////////////
// Location
////////////////////////////////////////////////////////////////////////////////
Location::Location()
    : _fileId(0),
      _sourceLocation(0)
{ }

Location::Location(Symbol *symbol)
    : _fileId(symbol->fileId()),
      _sourceLocation(symbol->sourceLocation())
{ }

Location::Location(StringLiteral *fileId, unsigned sourceLocation)
    : _fileId(fileId), _sourceLocation(sourceLocation)
{ }

////////////////////////////////////////////////////////////////////////////////
// NamespaceBinding
////////////////////////////////////////////////////////////////////////////////

NamespaceBinding::NamespaceBinding(NamespaceBinding *parent)
    : parent(parent),
      anonymousNamespaceBinding(0)
{
    if (parent)
        parent->children.append(this);
}

NamespaceBinding::~NamespaceBinding()
{
    qDeleteAll(children);
    qDeleteAll(classBindings);
}

NameId *NamespaceBinding::name() const
{
    if (symbols.size()) {
Roberto Raggi's avatar
Roberto Raggi committed
85
        if (Name *name = symbols.first()->name()) {
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
            NameId *nameId = name->asNameId();
            Q_ASSERT(nameId != 0);

            return nameId;
        }
    }

    return 0;
}

Identifier *NamespaceBinding::identifier() const
{
    if (NameId *nameId = name())
        return nameId->identifier();

    return 0;
}

NamespaceBinding *NamespaceBinding::globalNamespaceBinding()
{
    NamespaceBinding *it = this;

    for (; it; it = it->parent) {
        if (! it->parent)
            break;
    }

    return it;
}

116
Binding *NamespaceBinding::findClassOrNamespaceBinding(Identifier *id, QSet<Binding *> *processed)
Roberto Raggi's avatar
Roberto Raggi committed
117
{
118
119
120
121
122
    if (processed->contains(this))
        return 0;

    processed->insert(this);

Roberto Raggi's avatar
Roberto Raggi committed
123
124
125
126
127
128
129
130
131
132
133
134
135
136
    if (id->isEqualTo(identifier()))
        return const_cast<NamespaceBinding *>(this);

    foreach (NamespaceBinding *nestedNamespaceBinding, children) {
        if (id->isEqualTo(nestedNamespaceBinding->identifier()))
            return nestedNamespaceBinding;
    }

    foreach (ClassBinding *classBinding, classBindings) {
        if (id->isEqualTo(classBinding->identifier()))
            return classBinding;
    }

    foreach (NamespaceBinding *u, usings) {
137
        if (Binding *b = u->findClassOrNamespaceBinding(id, processed))
Roberto Raggi's avatar
Roberto Raggi committed
138
139
140
141
            return b;
    }

    if (parent)
142
        return parent->findClassOrNamespaceBinding(id, processed);
Roberto Raggi's avatar
Roberto Raggi committed
143
144
145
146

    return 0;
}

147
ClassBinding *NamespaceBinding::findClassBinding(Name *name, QSet<Binding *> *processed)
Roberto Raggi's avatar
Roberto Raggi committed
148
149
150
151
{
    if (! name)
        return 0;

152
153
154
155
156
    if (processed->contains(this))
        return 0;

    processed->insert(this);

Roberto Raggi's avatar
Roberto Raggi committed
157
158
159
160
161
162
163
164
    Identifier *id = name->identifier();

    foreach (ClassBinding *classBinding, classBindings) {
        if (id->isEqualTo(classBinding->identifier()))
            return classBinding;
    }

    if (parent)
165
166
167
168
169
170
        return parent->findClassBinding(name, processed);

    foreach (NamespaceBinding *u, usings) {
        if (ClassBinding *classBinding = u->findClassBinding(name, processed))
            return classBinding;
    }
Roberto Raggi's avatar
Roberto Raggi committed
171
172
173
174

    return 0;
}

175
176
177
178
179
180
NamespaceBinding *NamespaceBinding::findNamespaceBinding(Name *name)
{
    if (! name)
        return anonymousNamespaceBinding;

    else if (NameId *nameId = name->asNameId())
Roberto Raggi's avatar
Roberto Raggi committed
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
        return findNamespaceBindingForNameId(nameId, /*lookAtParent = */ true);

    else if (const QualifiedNameId *q = name->asQualifiedNameId()) {
        NamespaceBinding *current = this;

        for (unsigned i = 0; i < q->nameCount(); ++i) {
            NameId *namespaceName = q->nameAt(i)->asNameId();
            if (! namespaceName)
                return 0;

            bool lookAtParent = false;
            if (i == 0)
                lookAtParent = true;

            NamespaceBinding *binding = current->findNamespaceBindingForNameId(namespaceName, lookAtParent);
            if (! binding)
                return 0;

            current = binding;
        }

        return current;
    }
204
205
206
207
208

    // invalid binding
    return 0;
}

Roberto Raggi's avatar
Roberto Raggi committed
209
210
NamespaceBinding *NamespaceBinding::findNamespaceBindingForNameId(NameId *name,
                                                                  bool lookAtParentNamespace)
211
{
Roberto Raggi's avatar
Roberto Raggi committed
212
213
214
215
216
217
218
219
220
221
222
223
224
    QSet<NamespaceBinding *> processed;
    return findNamespaceBindingForNameId_helper(name, lookAtParentNamespace, &processed);
}

NamespaceBinding *NamespaceBinding::findNamespaceBindingForNameId_helper(NameId *name,
                                                                         bool lookAtParentNamespace,
                                                                         QSet<NamespaceBinding *> *processed)
{
    if (processed->contains(this))
        return 0;

    processed->insert(this);

225
226
227
228
229
230
231
232
233
234
235
236
    foreach (NamespaceBinding *binding, children) {
        Name *bindingName = binding->name();

        if (! bindingName)
            continue;

        if (NameId *bindingNameId = bindingName->asNameId()) {
            if (name->isEqualTo(bindingNameId))
                return binding;
        }
    }

Roberto Raggi's avatar
Roberto Raggi committed
237
238
239
240
241
242
243
244
245
    foreach (NamespaceBinding *u, usings) {
        if (NamespaceBinding *b = u->findNamespaceBindingForNameId_helper(name, lookAtParentNamespace, processed)) {
            return b;
        }
    }

    if (lookAtParentNamespace && parent)
        return parent->findNamespaceBindingForNameId_helper(name, lookAtParentNamespace, processed);

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
    return 0;
}

NamespaceBinding *NamespaceBinding::findOrCreateNamespaceBinding(Namespace *symbol)
{
    if (NamespaceBinding *binding = findNamespaceBinding(symbol->name())) {
        int index = 0;

        for (; index < binding->symbols.size(); ++index) {
            Namespace *ns = binding->symbols.at(index);

            if (ns == symbol)
                break;
        }

        if (index == binding->symbols.size())
            binding->symbols.append(symbol);

        return binding;
    }

    NamespaceBinding *binding = new NamespaceBinding(this);
    binding->symbols.append(symbol);

    if (! symbol->name()) {
        Q_ASSERT(! anonymousNamespaceBinding);

        anonymousNamespaceBinding = binding;
    }

    return binding;
}

static void closure(const Location &loc,
                    NamespaceBinding *binding, Name *name,
                    QList<NamespaceBinding *> *bindings)
{
    if (bindings->contains(binding))
        return;

    bindings->append(binding);

    Q_ASSERT(name->isNameId());

    Identifier *id = name->asNameId()->identifier();
    bool ignoreUsingDirectives = false;

    foreach (Namespace *symbol, binding->symbols) {
        Scope *scope = symbol->members();

        for (Symbol *symbol = scope->lookat(id); symbol; symbol = symbol->next()) {
            if (symbol->name() != name || ! symbol->isNamespace())
                continue;

            const Location l(symbol);

            if (l.fileId() == loc.fileId() && l.sourceLocation() < loc.sourceLocation()) {
                ignoreUsingDirectives = true;
                break;
            }
        }
    }

    if (ignoreUsingDirectives)
        return;

    foreach (NamespaceBinding *u, binding->usings)
        closure(loc, u, name, bindings);
}


NamespaceBinding *NamespaceBinding::resolveNamespace(const Location &loc,
                                                     Name *name,
                                                     bool lookAtParent)
{
    if (! name)
        return 0;

    else if (NameId *nameId = name->asNameId()) {
        QList<NamespaceBinding *> bindings;
        closure(loc, this, nameId, &bindings);

        QList<NamespaceBinding *> results;

        foreach (NamespaceBinding *binding, bindings) {
            if (NamespaceBinding *b = binding->findNamespaceBinding(nameId))
                results.append(b);
        }

        if (results.size() == 1)
            return results.at(0);

        else if (results.size() > 1) {
            // ### FIXME: return 0;
            return results.at(0);
        }

        else if (parent && lookAtParent)
            return parent->resolveNamespace(loc, name);

Roberto Raggi's avatar
Roberto Raggi committed
346
    } else if (const QualifiedNameId *q = name->asQualifiedNameId()) {
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
        if (q->nameCount() == 1) {
            Q_ASSERT(q->isGlobal());

            return globalNamespaceBinding()->resolveNamespace(loc, q->nameAt(0));
        }

        NamespaceBinding *current = this;
        if (q->isGlobal())
            current = globalNamespaceBinding();

        current = current->resolveNamespace(loc, q->nameAt(0));
        for (unsigned i = 1; current && i < q->nameCount(); ++i)
            current = current->resolveNamespace(loc, q->nameAt(i), false);

        return current;
    }

    return 0;
}

// ### rewrite me
QByteArray NamespaceBinding::qualifiedId() const
{
    if (! parent)
        return "<root>";

    QByteArray s;

    s.append(parent->qualifiedId());
    s.append("::");

    if (Identifier *id = identifier())
        s.append(id->chars(), id->size());

    else
        s.append("<anonymous>");

    return s;
}

// ### rewrite me
QByteArray ClassBinding::qualifiedId() const
{
    QByteArray s = parent->qualifiedId();
    s += "::";

    if (Identifier *id = identifier())
        s.append(id->chars(), id->size());

    else
        s.append("<anonymous>");

    return s;
}

402
Binding *ClassBinding::findClassOrNamespaceBinding(Identifier *id, QSet<Binding *> *processed)
Roberto Raggi's avatar
Roberto Raggi committed
403
404
405
406
407
408
409
410
411
412
413
414
{
    if (id->isEqualTo(identifier()))
        return this;

    foreach (ClassBinding *nestedClassBinding, children) {
        if (id->isEqualTo(nestedClassBinding->identifier()))
            return nestedClassBinding;
    }

    foreach (ClassBinding *baseClassBinding, baseClassBindings) {
        if (! baseClassBinding)
            continue;
415
        else if (Binding *b = baseClassBinding->findClassOrNamespaceBinding(id, processed))
Roberto Raggi's avatar
Roberto Raggi committed
416
417
418
419
            return b;
    }

    if (parent)
420
        return parent->findClassOrNamespaceBinding(id, processed);
Roberto Raggi's avatar
Roberto Raggi committed
421
422
423
424

    return 0;
}

425
ClassBinding *ClassBinding::findClassBinding(Name *name, QSet<Binding *> *processed)
Roberto Raggi's avatar
Roberto Raggi committed
426
427
428
429
{
    if (! name)
        return 0;

430
431
432
433
434
    if (processed->contains(this))
        return 0;

    processed->insert(this);

Roberto Raggi's avatar
Roberto Raggi committed
435
436
437
438
439
440
441
442
    if (const QualifiedNameId *q = name->asQualifiedNameId()) {
        Binding *currentBinding = this;

        for (unsigned i = 0; i < q->nameCount() - 1; ++i) {
            Identifier *id = q->nameAt(i)->identifier();
            if (! id)
                return 0;

443
            Binding *classOrNamespaceBinding = currentBinding->findClassOrNamespaceBinding(id, processed);
Roberto Raggi's avatar
Roberto Raggi committed
444
445
446
447
448
449
450
451

            if (! classOrNamespaceBinding)
                return 0;

            currentBinding = classOrNamespaceBinding;
        }

        if (currentBinding)
452
            return currentBinding->findClassBinding(q->unqualifiedNameId(), processed);
Roberto Raggi's avatar
Roberto Raggi committed
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468

        return 0;
    }

    if (Identifier *id = name->identifier()) {
        if (id->isEqualTo(identifier()))
            return this;

        foreach (ClassBinding *nestedClassBinding, children) {
            if (Identifier *nestedClassId = nestedClassBinding->identifier()) {
                if (nestedClassId->isEqualTo(id))
                    return nestedClassBinding;
            }
        }

        if (parent)
469
            return parent->findClassBinding(name, processed);
Roberto Raggi's avatar
Roberto Raggi committed
470
471
472
473
474
    }

    return 0;
}

475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
static int depth;

void NamespaceBinding::dump()
{
    qDebug() << QByteArray(depth, ' ').constData() << "namespace" << qualifiedId().constData()
              << " # " << symbols.size();

    ++depth;

    foreach (ClassBinding *classBinding, classBindings) {
        classBinding->dump();
    }

    foreach (NamespaceBinding *child, children) {
        child->dump();
    }

    --depth;
}

void ClassBinding::dump()
{
    qDebug() << QByteArray(depth, ' ').constData() << "class" << qualifiedId().constData()
              << " # " << symbols.size();

    ++depth;

    foreach (ClassBinding *classBinding, children) {
        classBinding->dump();
    }

    --depth;
}

////////////////////////////////////////////////////////////////////////////////
// ClassBinding
////////////////////////////////////////////////////////////////////////////////
ClassBinding::ClassBinding(NamespaceBinding *parent)
    : parent(parent)
{
    parent->classBindings.append(this);
}

ClassBinding::ClassBinding(ClassBinding *parentClass)
Roberto Raggi's avatar
Roberto Raggi committed
519
    : parent(parentClass)
520
521
522
523
524
525
526
{
    parentClass->children.append(this);
}

ClassBinding::~ClassBinding()
{ qDeleteAll(children); }

Roberto Raggi's avatar
Roberto Raggi committed
527
Name *ClassBinding::name() const
528
{
Roberto Raggi's avatar
Roberto Raggi committed
529
530
    if (symbols.isEmpty())
        return 0;
531

Roberto Raggi's avatar
Roberto Raggi committed
532
    return symbols.first()->name();
533
534
535
536
}

Identifier *ClassBinding::identifier() const
{
Roberto Raggi's avatar
Roberto Raggi committed
537
538
    if (Name *n = name())
        return n->identifier();
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659

    return 0;
}

namespace {

////////////////////////////////////////////////////////////////////////////////
// Binder
////////////////////////////////////////////////////////////////////////////////

class Binder: protected SymbolVisitor
{
public:
    Binder(NamespaceBinding *globals);
    virtual ~Binder();

    NamespaceBinding *operator()(Document::Ptr doc, const Snapshot &snapshot)
    {
        namespaceBinding = _globals;
        const Snapshot previousSnapshot = _snapshot;

        _snapshot = snapshot;
        (void) bind(doc);
        _snapshot = previousSnapshot;

        return _globals;
    }

    Snapshot _snapshot;

protected:
    NamespaceBinding *bind(Document::Ptr doc)
    {
        QSet<QString> processed;
        return bind(doc, &processed);
    }

    NamespaceBinding *bind(Document::Ptr doc, QSet<QString> *processed)
    {
        if (processed->contains(doc->fileName()))
            return 0;

        processed->insert(doc->fileName());

        foreach (const Document::Include &i, doc->includes()) {
            if (Document::Ptr includedDoc = _snapshot.value(i.fileName())) {
                /*NamepaceBinding *binding = */ bind(includedDoc, processed);
            }
        }

        Namespace *ns = doc->globalNamespace();
        _globals->symbols.append(ns);

        for (unsigned i = 0; i < ns->memberCount(); ++i) {
            (void) bind(ns->memberAt(i), _globals);
        }

        return _globals;
    }

    NamespaceBinding *bind(Symbol *symbol, NamespaceBinding *binding);
    NamespaceBinding *findOrCreateNamespaceBinding(Namespace *symbol);
    NamespaceBinding *resolveNamespace(const Location &loc, Name *name);

    NamespaceBinding *switchNamespaceBinding(NamespaceBinding *binding);

    ClassBinding *findOrCreateClassBinding(Class *classSymbol);
    ClassBinding *findClassBinding(Name *name);

    ClassBinding *switchClassBinding(ClassBinding *binding);

    using SymbolVisitor::visit;

    virtual bool visit(Namespace *);
    virtual bool visit(UsingNamespaceDirective *);
    virtual bool visit(Class *);
    virtual bool visit(Function *);
    virtual bool visit(Block *);

private:
    NamespaceBinding *_globals;
    NamespaceBinding *namespaceBinding;
    ClassBinding *classBinding;
};

Binder::Binder(NamespaceBinding *globals)
    : _globals(globals),
      namespaceBinding(0),
      classBinding(0)
{ }

Binder::~Binder()
{ }

NamespaceBinding *Binder::bind(Symbol *symbol, NamespaceBinding *binding)
{
    NamespaceBinding *previousBinding = switchNamespaceBinding(binding);
    accept(symbol);
    return switchNamespaceBinding(previousBinding);
}

NamespaceBinding *Binder::findOrCreateNamespaceBinding(Namespace *symbol)
{ return namespaceBinding->findOrCreateNamespaceBinding(symbol); }

NamespaceBinding *Binder::resolveNamespace(const Location &loc, Name *name)
{
    if (! namespaceBinding)
        return 0;

    return namespaceBinding->resolveNamespace(loc, name);
}

NamespaceBinding *Binder::switchNamespaceBinding(NamespaceBinding *binding)
{
    NamespaceBinding *previousBinding = namespaceBinding;
    namespaceBinding = binding;
    return previousBinding;
}

ClassBinding *Binder::findOrCreateClassBinding(Class *classSymbol)
{
660
    // ### FINISH ME
661
662
663
664
665
666
667
668
669
670
671
672
673
    ClassBinding *binding = 0;

    if (classBinding)
        binding = new ClassBinding(classBinding);
    else
        binding = new ClassBinding(namespaceBinding);

    binding->symbols.append(classSymbol);
    return binding;
}

ClassBinding *Binder::findClassBinding(Name *name)
{
674
675
    QSet<Binding *> processed;

Roberto Raggi's avatar
Roberto Raggi committed
676
    if (classBinding) {
677
        if (ClassBinding *k = classBinding->findClassBinding(name, &processed))
Roberto Raggi's avatar
Roberto Raggi committed
678
            return k;
679
680

        processed.clear();
Roberto Raggi's avatar
Roberto Raggi committed
681
682
683
    }

    if (namespaceBinding)
684
        return namespaceBinding->findClassBinding(name, &processed);
Roberto Raggi's avatar
Roberto Raggi committed
685

686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
    return 0;
}

ClassBinding *Binder::switchClassBinding(ClassBinding *binding)
{
    ClassBinding *previousClassBinding = classBinding;
    classBinding = binding;
    return previousClassBinding;
}

bool Binder::visit(Namespace *symbol)
{
    NamespaceBinding *binding = findOrCreateNamespaceBinding(symbol);

    for (unsigned i = 0; i < symbol->memberCount(); ++i) {
        Symbol *member = symbol->memberAt(i);

        bind(member, binding);
    }

    return false;
}

bool Binder::visit(UsingNamespaceDirective *u)
{
    NamespaceBinding *resolved = resolveNamespace(Location(u), u->name());

    if (! resolved)
        return false;

    namespaceBinding->usings.append(resolved);

    return false;
}

bool Binder::visit(Class *classSymbol)
{
    ClassBinding *binding = findOrCreateClassBinding(classSymbol);
    ClassBinding *previousClassBinding = switchClassBinding(binding);

    for (unsigned i = 0; i < classSymbol->baseClassCount(); ++i) {
        BaseClass *baseClass = classSymbol->baseClassAt(i);
        ClassBinding *baseClassBinding = findClassBinding(baseClass->name());
        binding->baseClassBindings.append(baseClassBinding);
    }

    for (unsigned i = 0; i < classSymbol->memberCount(); ++i)
        accept(classSymbol->memberAt(i));

    (void) switchClassBinding(previousClassBinding);

    return false;
}

bool Binder::visit(Function *)
{ return false; }

bool Binder::visit(Block *)
{ return false; }

} // end of anonymous namespace

748
static NamespaceBinding *find_helper(Namespace *symbol, NamespaceBinding *binding,
Roberto Raggi's avatar
Roberto Raggi committed
749
                                     QSet<NamespaceBinding *> *processed)
750
{
Roberto Raggi's avatar
Roberto Raggi committed
751
752
    if (binding && ! processed->contains(binding)) {
        processed->insert(binding);
753
754
755
756
757
758
759
760

        if (binding->symbols.contains(symbol))
            return binding;

        foreach (NamespaceBinding *nestedBinding, binding->children) {
            if (NamespaceBinding *ns = find_helper(symbol, nestedBinding, processed))
                return ns;
        }
Roberto Raggi's avatar
Roberto Raggi committed
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804

        if (NamespaceBinding *a = find_helper(symbol, binding->anonymousNamespaceBinding, processed))
            return a;
    }

    return 0;
}

static ClassBinding *find_helper(Class *symbol, Binding *binding,
                                 QSet<Binding *> *processed)
{
    if (binding && ! processed->contains(binding)) {
        processed->insert(binding);

        if (NamespaceBinding *namespaceBinding = binding->asNamespaceBinding()) {
            foreach (ClassBinding *classBinding, namespaceBinding->classBindings) {
                if (ClassBinding *c = find_helper(symbol, classBinding, processed))
                    return c;
            }

            foreach (NamespaceBinding *nestedBinding, namespaceBinding->children) {
                if (ClassBinding *c = find_helper(symbol, nestedBinding, processed))
                    return c;
            }

            if (ClassBinding *a = find_helper(symbol, namespaceBinding->anonymousNamespaceBinding, processed))
                return a;

        } else if (ClassBinding *classBinding = binding->asClassBinding()) {
            foreach (Class *klass, classBinding->symbols) {
                if (klass == symbol)
                    return classBinding;
            }

            foreach (ClassBinding *nestedClassBinding, classBinding->children) {
                if (ClassBinding *c = find_helper(symbol, nestedClassBinding, processed))
                    return c;
            }

#if 0 // ### FIXME
            if (ClassBinding *a = find_helper(symbol, classBinding->anonymousClassBinding, processed))
                return a;
#endif
        }
805
806
807
808
809
810
811
    }

    return 0;
}

NamespaceBinding *NamespaceBinding::find(Namespace *symbol, NamespaceBinding *binding)
{
Roberto Raggi's avatar
Roberto Raggi committed
812
813
814
815
816
817
818
    QSet<NamespaceBinding *> processed;
    return find_helper(symbol, binding, &processed);
}

ClassBinding *NamespaceBinding::find(Class *symbol, NamespaceBinding *binding)
{
    QSet<Binding *> processed;
819
820
821
    return find_helper(symbol, binding, &processed);
}

Roberto Raggi's avatar
Roberto Raggi committed
822
823
824
825
826
827
828
829
830
NamespaceBindingPtr CPlusPlus::bind(Document::Ptr doc, Snapshot snapshot)
{
    NamespaceBindingPtr global(new NamespaceBinding());

    Binder bind(global.data());
    bind(doc, snapshot);
    return global;
}