cppeditor.cpp 61.8 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2
3
4
**
** This file is part of Qt Creator
**
5
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
9
** Commercial Usage
10
**
11
12
13
14
** 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.
15
**
16
** GNU Lesser General Public License Usage
17
**
18
19
20
21
22
23
** 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.
24
**
25
** 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.
con's avatar
con committed
27
**
28
**************************************************************************/
hjk's avatar
hjk committed
29

con's avatar
con committed
30
31
32
33
34
#include "cppeditor.h"
#include "cppeditorconstants.h"
#include "cppplugin.h"
#include "cpphighlighter.h"

Roberto Raggi's avatar
Roberto Raggi committed
35
36
#include <cpptools/cpptoolsplugin.h>

con's avatar
con committed
37
#include <AST.h>
38
#include <Control.h>
con's avatar
con committed
39
40
41
42
43
44
45
46
#include <Token.h>
#include <Scope.h>
#include <Symbols.h>
#include <Names.h>
#include <Control.h>
#include <CoreTypes.h>
#include <Literals.h>
#include <Semantic.h>
47
#include <ASTVisitor.h>
48
#include <SymbolVisitor.h>
49
#include <TranslationUnit.h>
con's avatar
con committed
50
#include <cplusplus/ExpressionUnderCursor.h>
Roberto Raggi's avatar
Roberto Raggi committed
51
#include <cplusplus/TypeOfExpression.h>
con's avatar
con committed
52
53
54
55
#include <cplusplus/LookupContext.h>
#include <cplusplus/Overview.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/SimpleLexer.h>
56
#include <cplusplus/TokenUnderCursor.h>
con's avatar
con committed
57
#include <cplusplus/TypeOfExpression.h>
58
#include <cplusplus/MatchingText.h>
59
#include <cplusplus/BackwardsScanner.h>
60
#include <cplusplus/FastPreprocessor.h>
61
#include <cplusplus/CppBindings.h>
62

con's avatar
con committed
63
64
65
66
#include <cpptools/cppmodelmanagerinterface.h>

#include <coreplugin/icore.h>
#include <coreplugin/uniqueidmanager.h>
67
#include <coreplugin/actionmanager/actionmanager.h>
con's avatar
con committed
68
69
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/editormanager/editormanager.h>
dt's avatar
dt committed
70
#include <coreplugin/mimedatabase.h>
71
#include <utils/uncommentselection.h>
72
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
73
74
75
76
77
78
79
80
81
82
#include <projectexplorer/projectexplorerconstants.h>
#include <texteditor/basetextdocument.h>
#include <texteditor/fontsettings.h>
#include <texteditor/texteditorconstants.h>
#include <texteditor/textblockiterator.h>
#include <indenter.h>

#include <QtCore/QDebug>
#include <QtCore/QTime>
#include <QtCore/QTimer>
83
#include <QtCore/QStack>
con's avatar
con committed
84
#include <QtGui/QAction>
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
85
#include <QtGui/QApplication>
86
#include <QtGui/QHeaderView>
con's avatar
con committed
87
88
89
90
91
#include <QtGui/QLayout>
#include <QtGui/QMenu>
#include <QtGui/QShortcut>
#include <QtGui/QTextEdit>
#include <QtGui/QComboBox>
con's avatar
con committed
92
#include <QtGui/QToolBar>
con's avatar
con committed
93
#include <QtGui/QTreeView>
94
#include <QtGui/QSortFilterProxyModel>
con's avatar
con committed
95

96
97
#include <sstream>

Roberto Raggi's avatar
Roberto Raggi committed
98
enum {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
99
100
    UPDATE_METHOD_BOX_INTERVAL = 150,
    UPDATE_USES_INTERVAL = 300
Roberto Raggi's avatar
Roberto Raggi committed
101
102
};

Roberto Raggi's avatar
Roberto Raggi committed
103
104
105
using namespace CPlusPlus;
using namespace CppEditor::Internal;

con's avatar
con committed
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
namespace {

class OverviewTreeView : public QTreeView
{
public:
    OverviewTreeView(QWidget *parent = 0)
        : QTreeView(parent)
    {
        // TODO: Disable the root for all items (with a custom delegate?)
        setRootIsDecorated(false);
    }

    void sync()
    {
        expandAll();
        setMinimumWidth(qMax(sizeHintForColumn(0), minimumSizeHint().width()));
    }
};

Roberto Raggi's avatar
Roberto Raggi committed
125
class FindScope: protected SymbolVisitor
126
{
Roberto Raggi's avatar
Roberto Raggi committed
127
128
129
130
    TranslationUnit *_unit;
    Scope *_scope;
    unsigned _line;
    unsigned _column;
131

Roberto Raggi's avatar
Roberto Raggi committed
132
133
134
public:
    Scope *operator()(unsigned line, unsigned column,
                      Symbol *root, TranslationUnit *unit)
135
    {
Roberto Raggi's avatar
Roberto Raggi committed
136
137
138
139
140
141
142
        _unit = unit;
        _scope = 0;
        _line = line;
        _column = column;
        accept(root);
        return _scope;
    }
143

Roberto Raggi's avatar
Roberto Raggi committed
144
145
private:
    using SymbolVisitor::visit;
146

Roberto Raggi's avatar
Roberto Raggi committed
147
148
    virtual bool preVisit(Symbol *)
    { return ! _scope; }
149

Roberto Raggi's avatar
Roberto Raggi committed
150
151
    virtual bool visit(Block *block)
    { return processScope(block->members()); }
152

Roberto Raggi's avatar
Roberto Raggi committed
153
154
    virtual bool visit(Function *function)
    { return processScope(function->members()); }
155

Roberto Raggi's avatar
Roberto Raggi committed
156
157
158
159
    bool processScope(Scope *scope)
    {
        if (_scope || ! scope)
            return false;
160

Roberto Raggi's avatar
Roberto Raggi committed
161
162
        for (unsigned i = 0; i < scope->symbolCount(); ++i) {
            accept(scope->symbolAt(i));
163

Roberto Raggi's avatar
Roberto Raggi committed
164
165
166
            if (_scope)
                return false;
        }
167

Roberto Raggi's avatar
Roberto Raggi committed
168
169
        unsigned startOffset = scope->owner()->startOffset();
        unsigned endOffset = scope->owner()->endOffset();
170

Roberto Raggi's avatar
Roberto Raggi committed
171
172
        unsigned startLine, startColumn;
        unsigned endLine, endColumn;
173

Roberto Raggi's avatar
Roberto Raggi committed
174
175
        _unit->getPosition(startOffset, &startLine, &startColumn);
        _unit->getPosition(endOffset, &endLine, &endColumn);
176

Roberto Raggi's avatar
Roberto Raggi committed
177
178
179
        if (_line > startLine || (_line == startLine && _column >= startColumn)) {
            if (_line < endLine || (_line == endLine && _column < endColumn)) {
                _scope = scope;
180
181
            }
        }
Roberto Raggi's avatar
Roberto Raggi committed
182
183
184
185
186
187
188
189

        return false;
    }
};

class FindUses: protected ASTVisitor
{
    Scope *_functionScope;
190

191
192
    FindScope findScope;

193
public:
Roberto Raggi's avatar
Roberto Raggi committed
194
    FindUses(Control *control)
195
196
197
        : ASTVisitor(control)
    { }

Roberto Raggi's avatar
Roberto Raggi committed
198
    // local and external uses.
Roberto Raggi's avatar
Roberto Raggi committed
199
    SemanticInfo::LocalUseMap localUses;
Roberto Raggi's avatar
Roberto Raggi committed
200
201

    void operator()(FunctionDefinitionAST *ast)
202
    {
Roberto Raggi's avatar
Roberto Raggi committed
203
204
        localUses.clear();

205
206
207
208
209
210
211
212
213
        if (ast && ast->symbol) {
            _functionScope = ast->symbol->members();
            accept(ast);
        }
    }

protected:
    using ASTVisitor::visit;

Roberto Raggi's avatar
Roberto Raggi committed
214
    bool findMember(Scope *scope, NameAST *ast, unsigned line, unsigned column)
215
    {
Roberto Raggi's avatar
Roberto Raggi committed
216
217
218
219
        if (! (ast && ast->name))
            return false;

        Identifier *id = ast->name->identifier();
220
221
222
223
224

        if (scope) {
            for (Symbol *member = scope->lookat(id); member; member = member->next()) {
                if (member->identifier() != id)
                    continue;
Roberto Raggi's avatar
typo    
Roberto Raggi committed
225
                else if (member->line() < line || (member->line() == line && member->column() <= column)) {
Roberto Raggi's avatar
Roberto Raggi committed
226
                    localUses[member].append(SemanticInfo::Use(line, column, id->size()));
227
228
229
230
231
232
233
234
                    return true;
                }
            }
        }

        return false;
    }

235
236
237
238
239
240
241
242
243
244
245
246
    void searchUsesInTemplateArguments(NameAST *name)
    {
        if (! name)
            return;

        else if (TemplateIdAST *template_id = name->asTemplateId()) {
            for (TemplateArgumentListAST *it = template_id->template_arguments; it; it = it->next) {
                accept(it->template_argument);
            }
        }
    }

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
    virtual bool visit(SimpleNameAST *ast)
    {
        unsigned line, column;
        getTokenStartPosition(ast->firstToken(), &line, &column);

        Scope *scope = findScope(line, column,
                                 _functionScope->owner(),
                                 translationUnit());

        while (scope) {
            if (scope->isFunctionScope()) {
                Function *fun = scope->owner()->asFunction();
                if (findMember(fun->members(), ast, line, column))
                    return false;
                else if (findMember(fun->arguments(), ast, line, column))
                    return false;
            } else if (scope->isBlockScope()) {
                if (findMember(scope, ast, line, column))
                    return false;
            } else {
                break;
            }

            scope = scope->enclosingScope();
        }

        return false;
    }

Roberto Raggi's avatar
Roberto Raggi committed
276
    virtual bool visit(TemplateIdAST *ast)
277
    {
278
279
280
        for (TemplateArgumentListAST *arg = ast->template_arguments; arg; arg = arg->next)
            accept(arg->template_argument);

Roberto Raggi's avatar
Roberto Raggi committed
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
        unsigned line, column;
        getTokenStartPosition(ast->firstToken(), &line, &column);

        Scope *scope = findScope(line, column,
                                 _functionScope->owner(),
                                 translationUnit());

        while (scope) {
            if (scope->isFunctionScope()) {
                Function *fun = scope->owner()->asFunction();
                if (findMember(fun->members(), ast, line, column))
                    return false;
                else if (findMember(fun->arguments(), ast, line, column))
                    return false;
            } else if (scope->isBlockScope()) {
                if (findMember(scope, ast, line, column))
                    return false;
            } else {
                break;
            }

            scope = scope->enclosingScope();
        }

        return false;
    }

    virtual bool visit(QualifiedNameAST *ast)
    {
310
311
        for (NestedNameSpecifierAST *it = ast->nested_name_specifier; it; it = it->next)
            searchUsesInTemplateArguments(it->class_or_namespace_name);
Roberto Raggi's avatar
Roberto Raggi committed
312

313
        searchUsesInTemplateArguments(ast->unqualified_name);
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
        return false;
    }

    virtual bool visit(PostfixExpressionAST *ast)
    {
        accept(ast->base_expression);
        for (PostfixAST *it = ast->postfix_expressions; it; it = it->next) {
            if (it->asMemberAccess() != 0)
                continue; // skip members
            accept(it);
        }
        return false;
    }

    virtual bool visit(ElaboratedTypeSpecifierAST *)
    {
        // ### template args
        return false;
    }

    virtual bool visit(ClassSpecifierAST *)
    {
        // ### template args
        return false;
    }

    virtual bool visit(EnumSpecifierAST *)
    {
        // ### template args
        return false;
    }

    virtual bool visit(UsingDirectiveAST *)
    {
        return false;
    }

    virtual bool visit(UsingAST *ast)
    {
        accept(ast->name);
        return false;
    }
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373

    virtual bool visit(ExpressionOrDeclarationStatementAST *ast)
    {
        accept(ast->declaration);
        return false;
    }

    virtual bool visit(FunctionDeclaratorAST *ast)
    {
        accept(ast->parameters);

        for (SpecifierAST *spec = ast->cv_qualifier_seq; spec; spec = spec->next)
            accept(spec);

        accept(ast->exception_specification);

        return false;
    }
374
375
376
};


Roberto Raggi's avatar
Roberto Raggi committed
377
378
379
380
381
382
383
384
class FunctionDefinitionUnderCursor: protected ASTVisitor
{
    unsigned _line;
    unsigned _column;
    FunctionDefinitionAST *_functionDefinition;

public:
    FunctionDefinitionUnderCursor(Control *control)
Roberto Raggi's avatar
Roberto Raggi committed
385
386
        : ASTVisitor(control),
          _line(0), _column(0)
Roberto Raggi's avatar
Roberto Raggi committed
387
388
    { }

Roberto Raggi's avatar
Roberto Raggi committed
389
    FunctionDefinitionAST *operator()(AST *ast, unsigned line, unsigned column)
Roberto Raggi's avatar
Roberto Raggi committed
390
391
    {
        _functionDefinition = 0;
Roberto Raggi's avatar
Roberto Raggi committed
392
393
        _line = line;
        _column = column;
Roberto Raggi's avatar
Roberto Raggi committed
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
453
454
455
456
457
458
459
460
461
462
        accept(ast);
        return _functionDefinition;
    }

protected:
    virtual bool preVisit(AST *ast)
    {
        if (_functionDefinition)
            return false;

        else if (FunctionDefinitionAST *def = ast->asFunctionDefinition()) {
            unsigned startLine, startColumn;
            unsigned endLine, endColumn;
            getTokenStartPosition(def->firstToken(), &startLine, &startColumn);
            getTokenEndPosition(def->lastToken() - 1, &endLine, &endColumn);

            if (_line > startLine || (_line == startLine && _column >= startColumn)) {
                if (_line < endLine || (_line == endLine && _column < endColumn)) {
                    _functionDefinition = def;
                    return false;
                }
            }
        }

        return true;
    }

};

class ProcessDeclarators: protected ASTVisitor
{
    QList<DeclaratorIdAST *> _declarators;
    bool _visitFunctionDeclarator;

public:
    ProcessDeclarators(Control *control)
            : ASTVisitor(control), _visitFunctionDeclarator(true)
    { }

    QList<DeclaratorIdAST *> operator()(FunctionDefinitionAST *ast)
    {
        _declarators.clear();

        if (ast) {
            if (ast->declarator) {
                _visitFunctionDeclarator = true;
                accept(ast->declarator->postfix_declarators);
            }

            _visitFunctionDeclarator = false;
            accept(ast->function_body);
        }

        return _declarators;
    }

protected:
    using ASTVisitor::visit;

    virtual bool visit(FunctionDeclaratorAST *)
    { return _visitFunctionDeclarator; }

    virtual bool visit(DeclaratorIdAST *ast)
    {
        _declarators.append(ast);
        return true;
    }
};

463
464
465
466
467
468
469
470
471
472
473
474
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
class FindFunctionDefinitions: protected SymbolVisitor
{
    Name *_declarationName;
    QList<Function *> *_functions;

public:
    FindFunctionDefinitions()
        : _declarationName(0),
          _functions(0)
    { }

    void operator()(Name *declarationName, Scope *globals,
                    QList<Function *> *functions)
    {
        _declarationName = declarationName;
        _functions = functions;

        for (unsigned i = 0; i < globals->symbolCount(); ++i) {
            accept(globals->symbolAt(i));
        }
    }

protected:
    using SymbolVisitor::visit;

    virtual bool visit(Function *function)
    {
        Name *name = function->name();
        if (QualifiedNameId *q = name->asQualifiedNameId())
            name = q->unqualifiedNameId();

        if (_declarationName->isEqualTo(name))
            _functions->append(function);

        return false;
    }
};

con's avatar
con committed
501
502
} // end of anonymous namespace

503
static QualifiedNameId *qualifiedNameIdForSymbol(Symbol *s, const LookupContext &context)
con's avatar
con committed
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
{
    Name *symbolName = s->name();
    if (! symbolName)
        return 0; // nothing to do.

    QVector<Name *> names;

    for (Scope *scope = s->scope(); scope; scope = scope->enclosingScope()) {
        if (scope->isClassScope() || scope->isNamespaceScope()) {
            if (scope->owner() && scope->owner()->name()) {
                Name *ownerName = scope->owner()->name();
                if (QualifiedNameId *q = ownerName->asQualifiedNameId()) {
                    for (unsigned i = 0; i < q->nameCount(); ++i) {
                        names.prepend(q->nameAt(i));
                    }
                } else {
                    names.prepend(ownerName);
                }
            }
        }
    }

    if (QualifiedNameId *q = symbolName->asQualifiedNameId()) {
        for (unsigned i = 0; i < q->nameCount(); ++i) {
            names.append(q->nameAt(i));
        }
    } else {
        names.append(symbolName);
    }

    return context.control()->qualifiedNameId(names.constData(), names.size());
}

CPPEditorEditable::CPPEditorEditable(CPPEditor *editor)
hjk's avatar
hjk committed
538
    : BaseTextEditorEditable(editor)
con's avatar
con committed
539
{
540
541
542
543
    Core::UniqueIDManager *uidm = Core::UniqueIDManager::instance();
    m_context << uidm->uniqueIdentifier(CppEditor::Constants::C_CPPEDITOR);
    m_context << uidm->uniqueIdentifier(ProjectExplorer::Constants::LANG_CXX);
    m_context << uidm->uniqueIdentifier(TextEditor::Constants::C_TEXTEDITOR);
con's avatar
con committed
544
545
}

546
547
CPPEditor::CPPEditor(QWidget *parent)
    : TextEditor::BaseTextEditor(parent)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
548
    , m_currentRenameSelection(-1)
549
    , m_inRename(false)
550
    , m_allowSkippingOfBlockEnd(false)
con's avatar
con committed
551
{
Roberto Raggi's avatar
Roberto Raggi committed
552
553
554
555
556
    qRegisterMetaType<SemanticInfo>("SemanticInfo");

    m_semanticHighlighter = new SemanticHighlighter(this);
    m_semanticHighlighter->start();

con's avatar
con committed
557
558
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
559
    setCodeFoldingSupported(true);
con's avatar
con committed
560
    setCodeFoldingVisible(true);
561
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
562

Roberto Raggi's avatar
Roberto Raggi committed
563
    m_modelManager = CppTools::CppModelManagerInterface::instance();
con's avatar
con committed
564
565
566
567
568
569
570
571
572

    if (m_modelManager) {
        connect(m_modelManager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
                this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
    }
}

CPPEditor::~CPPEditor()
{
Roberto Raggi's avatar
Roberto Raggi committed
573
574
    m_semanticHighlighter->abort();
    m_semanticHighlighter->wait();
con's avatar
con committed
575
576
577
578
579
580
581
582
583
584
585
586
587
}

TextEditor::BaseTextEditorEditable *CPPEditor::createEditableInterface()
{
    CPPEditorEditable *editable = new CPPEditorEditable(this);
    createToolBar(editable);
    return editable;
}

void CPPEditor::createToolBar(CPPEditorEditable *editable)
{
    m_methodCombo = new QComboBox;
    m_methodCombo->setMinimumContentsLength(22);
588
589
590
591
592
593

    // Make the combo box prefer to expand
    QSizePolicy policy = m_methodCombo->sizePolicy();
    policy.setHorizontalPolicy(QSizePolicy::Expanding);
    m_methodCombo->setSizePolicy(policy);

594
    QTreeView *methodView = new OverviewTreeView;
con's avatar
con committed
595
596
597
598
599
600
    methodView->header()->hide();
    methodView->setItemsExpandable(false);
    m_methodCombo->setView(methodView);
    m_methodCombo->setMaxVisibleItems(20);

    m_overviewModel = new OverviewModel(this);
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
    m_proxyModel = new QSortFilterProxyModel(this);
    m_proxyModel->setSourceModel(m_overviewModel);
    if (CppPlugin::instance()->sortedMethodOverview())
        m_proxyModel->sort(0, Qt::AscendingOrder);
    else
        m_proxyModel->sort(-1, Qt::AscendingOrder); // don't sort yet, but set column for sortedMethodOverview()
    m_proxyModel->setDynamicSortFilter(true);
    m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
    m_methodCombo->setModel(m_proxyModel);

    m_methodCombo->setContextMenuPolicy(Qt::ActionsContextMenu);
    m_sortAction = new QAction(tr("Sort alphabetically"), m_methodCombo);
    m_sortAction->setCheckable(true);
    m_sortAction->setChecked(sortedMethodOverview());
    connect(m_sortAction, SIGNAL(toggled(bool)), CppPlugin::instance(), SLOT(setSortedMethodOverview(bool)));
    m_methodCombo->addAction(m_sortAction);
con's avatar
con committed
617

Roberto Raggi's avatar
Roberto Raggi committed
618
619
620
621
622
    m_updateMethodBoxTimer = new QTimer(this);
    m_updateMethodBoxTimer->setSingleShot(true);
    m_updateMethodBoxTimer->setInterval(UPDATE_METHOD_BOX_INTERVAL);
    connect(m_updateMethodBoxTimer, SIGNAL(timeout()), this, SLOT(updateMethodBoxIndexNow()));

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
623
624
625
626
627
    m_updateUsesTimer = new QTimer(this);
    m_updateUsesTimer->setSingleShot(true);
    m_updateUsesTimer->setInterval(UPDATE_USES_INTERVAL);
    connect(m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));

con's avatar
con committed
628
629
    connect(m_methodCombo, SIGNAL(activated(int)), this, SLOT(jumpToMethod(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateMethodBoxIndex()));
630
    connect(m_methodCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateMethodBoxToolTip()));
631
    connect(document(), SIGNAL(contentsChange(int,int,int)), this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
632
633
634

    connect(file(), SIGNAL(changed()), this, SLOT(updateFileName()));

Roberto Raggi's avatar
Roberto Raggi committed
635
636
637
638
639
640
641
642

    // set up the semantic highlighter
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateUses()));
    connect(this, SIGNAL(textChanged()), this, SLOT(updateUses()));

    connect(m_semanticHighlighter, SIGNAL(changed(SemanticInfo)),
            this, SLOT(updateSemanticInfo(SemanticInfo)));

con's avatar
con committed
643
    QToolBar *toolBar = static_cast<QToolBar*>(editable->toolBar());
con's avatar
con committed
644
    QList<QAction*> actions = toolBar->actions();
645
646
    QWidget *w = toolBar->widgetForAction(actions.first());
    static_cast<QHBoxLayout*>(w->layout())->insertWidget(0, m_methodCombo, 1);
con's avatar
con committed
647
648
}

649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
void CPPEditor::inAllRenameSelections(EditOperation operation,
                                      const QTextEdit::ExtraSelection &currentRenameSelection,
                                      QTextCursor cursor,
                                      const QString &text)
{
    m_inRename = true;
    cursor.beginEditBlock();

    const int offset = cursor.position() - currentRenameSelection.cursor.anchor();

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        QTextEdit::ExtraSelection &s = m_renameSelections[i];
        int pos = s.cursor.anchor();
        int endPos = s.cursor.position();
        s.cursor.setPosition(s.cursor.anchor() + offset);

        switch (operation) {
        case DeletePreviousChar:
            s.cursor.deletePreviousChar();
            --endPos;
            break;
        case DeleteChar:
            s.cursor.deleteChar();
            --endPos;
            break;
        case InsertText:
            s.cursor.insertText(text);
            endPos += text.length();
            break;
        }

        s.cursor.setPosition(pos);
        s.cursor.setPosition(endPos, QTextCursor::KeepAnchor);
    }

    cursor.endEditBlock();
    m_inRename = false;

    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
    setTextCursor(cursor);
}

691
692
693
694
695
696
697
void CPPEditor::abortRename()
{
    m_currentRenameSelection = -1;
    m_renameSelections.clear();
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
}

con's avatar
con committed
698
699
700
701
702
703
void CPPEditor::onDocumentUpdated(Document::Ptr doc)
{
    if (doc->fileName() != file()->fileName())
        return;

    m_overviewModel->rebuild(doc);
704
705
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_methodCombo->view());
    treeView->sync();
Roberto Raggi's avatar
Roberto Raggi committed
706
    updateMethodBoxIndexNow();
con's avatar
con committed
707
708
}

709
710
711
CPlusPlus::Symbol *CPPEditor::findCanonicalSymbol(const QTextCursor &cursor,
                                                  Document::Ptr doc,
                                                  const Snapshot &snapshot) const
Roberto Raggi's avatar
Roberto Raggi committed
712
{
713
714
715
    if (! doc)
        return 0;

716
    QTextCursor tc = cursor;
Roberto Raggi's avatar
Roberto Raggi committed
717
718
    int line, col;
    convertPosition(tc.position(), &line, &col);
719
    ++col; // 1-based line and 1-based column
Roberto Raggi's avatar
Roberto Raggi committed
720

721
722
723
724
725
    int pos = tc.position();
    while (document()->characterAt(pos).isLetterOrNumber() ||
           document()->characterAt(pos) == QLatin1Char('_'))
        ++pos;
    tc.setPosition(pos);
Roberto Raggi's avatar
Roberto Raggi committed
726
727
728

    ExpressionUnderCursor expressionUnderCursor;
    const QString code = expressionUnderCursor(tc);
729
    // qDebug() << "code:" << code;
Roberto Raggi's avatar
Roberto Raggi committed
730
731
732
733
734
735
736
737
738
739

    TypeOfExpression typeOfExpression;
    typeOfExpression.setSnapshot(snapshot);

    Symbol *lastVisibleSymbol = doc->findSymbolAt(line, col);

    const QList<TypeOfExpression::Result> results = typeOfExpression(code, doc,
                                                                     lastVisibleSymbol,
                                                                     TypeOfExpression::Preprocess);

740
741
    NamespaceBindingPtr glo = bind(doc, snapshot);
    Symbol *canonicalSymbol = LookupContext::canonicalSymbol(results, glo.data());
742
743
744
    return canonicalSymbol;
}

745
746

void CPPEditor::findUsages()
747
748
{    
    if (Symbol *canonicalSymbol = markSymbols()) {
749
        m_modelManager->findUsages(canonicalSymbol);
750
    }
751
752
753
}

void CPPEditor::renameUsages()
754
{
755
756
757
758
759
760
761
762
    Core::EditorManager::instance()->showEditorInfoBar(QLatin1String("CppEditor.Rename"),
                                                       tr("This change cannot be undone."),
                                                       tr("Yes, I know what I am doing."),
                                                       this, SLOT(renameUsagesNow()));
}

void CPPEditor::renameUsagesNow()
{
763
764
765
766
767
768
769
770
771
    if (Symbol *canonicalSymbol = markSymbols()) {
        Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));
        m_modelManager->renameUsages(canonicalSymbol);
    }
}

Symbol *CPPEditor::markSymbols()
{
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
772

773
774
775
776
777
778
    m_currentRenameSelection = -1;

    QList<QTextEdit::ExtraSelection> selections;

    SemanticInfo info = m_lastSemanticInfo;

779
780
781
    Symbol *canonicalSymbol = findCanonicalSymbol(textCursor(), info.doc, info.snapshot);
    if (canonicalSymbol) {
        TranslationUnit *unit = info.doc->translationUnit();
782

783
784
785
786
        const QList<int> references = m_modelManager->references(canonicalSymbol, info.doc, info.snapshot);
        foreach (int index, references) {
            unsigned line, column;
            unit->getTokenPosition(index, &line, &column);
787

788
789
            if (column)
                --column;  // adjust the column position.
790

791
            const int len = unit->tokenAt(index).f.length;
792

793
794
795
            QTextCursor cursor(document()->findBlockByNumber(line - 1));
            cursor.setPosition(cursor.position() + column);
            cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
796

797
798
799
800
            QTextEdit::ExtraSelection sel;
            sel.format = m_occurrencesFormat;
            sel.cursor = cursor;
            selections.append(sel);
801
        }
Roberto Raggi's avatar
Roberto Raggi committed
802
    }
803
804
805

    setExtraSelections(CodeSemanticsSelection, selections);
    return canonicalSymbol;
Roberto Raggi's avatar
Roberto Raggi committed
806
807
}

808
void CPPEditor::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
809
{
Roberto Raggi's avatar
Roberto Raggi committed
810
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
811

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
812
813
814
815
816
817
    QTextCursor c = textCursor();
    m_currentRenameSelection = -1;

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        QTextEdit::ExtraSelection s = m_renameSelections.at(i);
        if (c.position() >= s.cursor.anchor()
818
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
819
            m_currentRenameSelection = i;
820
            m_renameSelections[i].format = m_occurrenceRenameFormat;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
821
822
823
824
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
825
826

    if (m_renameSelections.isEmpty())
827
        renameUsages();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
828
829
}

830
831
void CPPEditor::onContentsChanged(int position, int charsRemoved, int charsAdded)
{
832
833
834
    Q_UNUSED(position)
    Q_UNUSED(charsAdded)

835
836
837
    if (m_currentRenameSelection == -1)
        return;

838
839
840
841
842
843
844
    if (!m_inRename)
        abortRename();

    if (charsRemoved > 0)
        updateUses();
}

con's avatar
con committed
845
846
847
848
849
void CPPEditor::updateFileName()
{ }

void CPPEditor::jumpToMethod(int)
{
850
    QModelIndex index = m_proxyModel->mapToSource(m_methodCombo->view()->currentIndex());
con's avatar
con committed
851
852
853
854
    Symbol *symbol = m_overviewModel->symbolFromIndex(index);
    if (! symbol)
        return;

855
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
856
857
}

858
859
860
861
862
863
864
865
866
867
void CPPEditor::setSortedMethodOverview(bool sort)
{
    if (sort != sortedMethodOverview()) {
        if (sort)
            m_proxyModel->sort(0, Qt::AscendingOrder);
        else
            m_proxyModel->sort(-1, Qt::AscendingOrder);
        bool block = m_sortAction->blockSignals(true);
        m_sortAction->setChecked(m_proxyModel->sortColumn() == 0);
        m_sortAction->blockSignals(block);
Roberto Raggi's avatar
Roberto Raggi committed
868
        updateMethodBoxIndexNow();
869
870
871
872
873
874
875
876
    }
}

bool CPPEditor::sortedMethodOverview() const
{
    return (m_proxyModel->sortColumn() == 0);
}

con's avatar
con committed
877
878
void CPPEditor::updateMethodBoxIndex()
{
Roberto Raggi's avatar
Roberto Raggi committed
879
880
881
    m_updateMethodBoxTimer->start(UPDATE_METHOD_BOX_INTERVAL);
}

882
883
void CPPEditor::highlightUses(const QList<SemanticInfo::Use> &uses,
                              QList<QTextEdit::ExtraSelection> *selections)
Roberto Raggi's avatar
Roberto Raggi committed
884
{
Roberto Raggi's avatar
Roberto Raggi committed
885
    bool isUnused = false;
Roberto Raggi's avatar
Roberto Raggi committed
886
887

    if (uses.size() == 1)
Roberto Raggi's avatar
Roberto Raggi committed
888
        isUnused = true;
Roberto Raggi's avatar
Roberto Raggi committed
889

Roberto Raggi's avatar
Roberto Raggi committed
890
    foreach (const SemanticInfo::Use &use, uses) {
Roberto Raggi's avatar
Roberto Raggi committed
891
        QTextEdit::ExtraSelection sel;
Roberto Raggi's avatar
Roberto Raggi committed
892

Roberto Raggi's avatar
Roberto Raggi committed
893
        if (isUnused)
894
            sel.format = m_occurrencesUnusedFormat;
Roberto Raggi's avatar
Roberto Raggi committed
895
        else
896
            sel.format = m_occurrencesFormat;
Roberto Raggi's avatar
Roberto Raggi committed
897

898
        const int anchor = document()->findBlockByNumber(use.line - 1).position() + use.column - 1;
Roberto Raggi's avatar
Roberto Raggi committed
899
        const int position = anchor + use.length;
Roberto Raggi's avatar
Roberto Raggi committed
900

901
        sel.cursor = QTextCursor(document());
Roberto Raggi's avatar
Roberto Raggi committed
902
903
        sel.cursor.setPosition(anchor);
        sel.cursor.setPosition(position, QTextCursor::KeepAnchor);
Roberto Raggi's avatar
Roberto Raggi committed
904

Roberto Raggi's avatar
Roberto Raggi committed
905
        selections->append(sel);
Roberto Raggi's avatar
Roberto Raggi committed
906
907
908
    }
}

Roberto Raggi's avatar
Roberto Raggi committed
909
910
911
912
void CPPEditor::updateMethodBoxIndexNow()
{
    m_updateMethodBoxTimer->stop();

con's avatar
con committed
913
914
915
916
917
    int line = 0, column = 0;
    convertPosition(position(), &line, &column);

    QModelIndex lastIndex;

918
    const int rc = m_overviewModel->rowCount();
con's avatar
con committed
919
920
921
    for (int row = 0; row < rc; ++row) {
        const QModelIndex index = m_overviewModel->index(row, 0, QModelIndex());
        Symbol *symbol = m_overviewModel->symbolFromIndex(index);
922
        if (symbol && symbol->line() > unsigned(line))
con's avatar
con committed
923
924
925
926
927
928
            break;
        lastIndex = index;
    }

    if (lastIndex.isValid()) {
        bool blocked = m_methodCombo->blockSignals(true);
929
        m_methodCombo->setCurrentIndex(m_proxyModel->mapFromSource(lastIndex).row());
930
        updateMethodBoxToolTip();
con's avatar
con committed
931
932
        (void) m_methodCombo->blockSignals(blocked);
    }
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
}

void CPPEditor::updateMethodBoxToolTip()
{
    m_methodCombo->setToolTip(m_methodCombo->currentText());
}

void CPPEditor::updateUses()
{
    m_updateUsesTimer->start(UPDATE_USES_INTERVAL);
}

void CPPEditor::updateUsesNow()
{
    m_updateUsesTimer->stop();

    if (m_currentRenameSelection != -1)
        return;

Roberto Raggi's avatar
Roberto Raggi committed
952
    semanticRehighlight();
con's avatar
con committed
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
}

static bool isCompatible(Name *name, Name *otherName)
{
    if (NameId *nameId = name->asNameId()) {
        if (TemplateNameId *otherTemplId = otherName->asTemplateNameId())
            return nameId->identifier()->isEqualTo(otherTemplId->identifier());
    } else if (TemplateNameId *templId = name->asTemplateNameId()) {
        if (NameId *otherNameId = otherName->asNameId())
            return templId->identifier()->isEqualTo(otherNameId->identifier());
    }

    return name->isEqualTo(otherName);
}

static bool isCompatible(Function *definition, Symbol *declaration, QualifiedNameId *declarationName)
{
970
    Function *declTy = declaration->type()->asFunctionType();
con's avatar
con committed
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
    if (! declTy)
        return false;

    Name *definitionName = definition->name();
    if (QualifiedNameId *q = definitionName->asQualifiedNameId()) {
        if (! isCompatible(q->unqualifiedNameId(), declaration->name()))
            return false;
        else if (q->nameCount() > declarationName->nameCount())
            return false;
        else if (declTy->argumentCount() != definition->argumentCount())
            return false;
        else if (declTy->isConst() != definition->isConst())
            return false;
        else if (declTy->isVolatile() != definition->isVolatile())
            return false;

        for (unsigned i = 0; i < definition->argumentCount(); ++i) {
            Symbol *arg = definition->argumentAt(i);
            Symbol *otherArg = declTy->argumentAt(i);
            if (! arg->type().isEqualTo(otherArg->type()))
                return false;
        }

        for (unsigned i = 0; i != q->nameCount(); ++i) {
            Name *n = q->nameAt(q->nameCount() - i - 1);
            Name *m = declarationName->nameAt(declarationName->nameCount() - i - 1);
            if (! isCompatible(n, m))
                return false;
        }
        return true;
For faster browsing, not all history is shown. View entire blame