cppquickfixes.cpp 55.3 KB
Newer Older
1
2
3
4
5
6
7
8
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
con's avatar
con committed
9
** No Commercial Usage
10
**
con's avatar
con committed
11
12
13
14
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
15
16
17
18
19
20
21
22
23
24
**
** 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.
**
con's avatar
con committed
25
26
27
28
29
30
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
31
32
33
**
**************************************************************************/

34
#include "cppcompleteswitch.h"
35
36
#include "cppeditor.h"
#include "cppquickfix.h"
37
#include "cppinsertdecldef.h"
38
#include "cppinsertqtpropertymembers.h"
39
#include "cppquickfixcollector.h"
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59

#include <ASTVisitor.h>
#include <AST.h>
#include <ASTMatcher.h>
#include <ASTPatternBuilder.h>
#include <CoreTypes.h>
#include <Literals.h>
#include <Name.h>
#include <Names.h>
#include <Symbol.h>
#include <Symbols.h>
#include <Token.h>
#include <TranslationUnit.h>
#include <Type.h>

#include <cplusplus/DependencyTable.h>
#include <cplusplus/Overview.h>
#include <cplusplus/TypeOfExpression.h>
#include <cplusplus/CppRewriter.h>
#include <cpptools/cpptoolsconstants.h>
60
#include <cpptools/cpprefactoringchanges.h>
61
#include <cpptools/insertionpointlocator.h>
62
63
64
65
66
67
68
69
#include <extensionsystem/iplugin.h>

#include <QtGui/QApplication>
#include <QtGui/QTextBlock>
#include <QtGui/QTextCursor>

using namespace CppEditor;
using namespace CppEditor::Internal;
70
using namespace CppTools;
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
using namespace TextEditor;
using namespace CPlusPlus;
using namespace Utils;

namespace {

/*
    Rewrite
    a op b -> !(a invop b)
    (a op b) -> !(a invop b)
    !(a op b) -> (a invob b)
*/
class UseInverseOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        QList<CppQuickFixOperation::Ptr> result;
89
        const CppRefactoringFile &file = state.currentFile();
90
91
92
93
94
95
96
97
98
99

        const QList<AST *> &path = state.path();
        int index = path.size() - 1;
        BinaryExpressionAST *binary = path.at(index)->asBinaryExpression();
        if (! binary)
            return result;
        if (! state.isCursorOn(binary->binary_op_token))
            return result;

        Kind invertToken;
100
        switch (file.tokenAt(binary->binary_op_token).kind()) {
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
        case T_LESS_EQUAL:
            invertToken = T_GREATER;
            break;
        case T_LESS:
            invertToken = T_GREATER_EQUAL;
            break;
        case T_GREATER:
            invertToken = T_LESS_EQUAL;
            break;
        case T_GREATER_EQUAL:
            invertToken = T_LESS;
            break;
        case T_EQUAL_EQUAL:
            invertToken = T_EXCLAIM_EQUAL;
            break;
        case T_EXCLAIM_EQUAL:
            invertToken = T_EQUAL_EQUAL;
            break;
        default:
            return result;
        }

        result.append(CppQuickFixOperation::Ptr(new Operation(state, index, binary, invertToken)));
        return result;
    }

private:
    class Operation: public CppQuickFixOperation
    {
        BinaryExpressionAST *binary;
        NestedExpressionAST *nested;
        UnaryExpressionAST *negation;

        QString replacement;

    public:
        Operation(const CppQuickFixState &state, int priority, BinaryExpressionAST *binary, Kind invertToken)
            : CppQuickFixOperation(state, priority)
            , binary(binary)
        {
            Token tok;
            tok.f.kind = invertToken;
            replacement = QLatin1String(tok.spell());

            // check for enclosing nested expression
            if (priority - 1 >= 0)
                nested = state.path()[priority - 1]->asNestedExpression();

            // check for ! before parentheses
            if (nested && priority - 2 >= 0) {
                negation = state.path()[priority - 2]->asUnaryExpression();
152
                if (negation && ! state.currentFile().tokenAt(negation->unary_op_token).is(T_EXCLAIM))
153
154
155
156
157
158
159
160
161
                    negation = 0;
            }
        }

        virtual QString description() const
        {
            return QApplication::translate("CppTools::QuickFix", "Rewrite Using %1").arg(replacement);
        }

162
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
163
164
165
166
        {
            ChangeSet changes;
            if (negation) {
                // can't remove parentheses since that might break precedence
167
                changes.remove(currentFile->range(negation->unary_op_token));
168
            } else if (nested) {
169
                changes.insert(currentFile->startOf(nested), "!");
170
            } else {
171
172
                changes.insert(currentFile->startOf(binary), "!(");
                changes.insert(currentFile->endOf(binary), ")");
173
            }
174
            changes.replace(currentFile->range(binary->binary_op_token), replacement);
175
            currentFile->change(changes);
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
        }
    };
};

/*
    Rewrite
    a op b

    As
    b flipop a
*/
class FlipBinaryOp: public CppQuickFixFactory
{
public:
    virtual QList<QuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        QList<QuickFixOperation::Ptr> result;
        const QList<AST *> &path = state.path();
194
        const CppRefactoringFile &file = state.currentFile();
195
196
197
198
199
200
201
202
203

        int index = path.size() - 1;
        BinaryExpressionAST *binary = path.at(index)->asBinaryExpression();
        if (! binary)
            return result;
        if (! state.isCursorOn(binary->binary_op_token))
            return result;

        Kind flipToken;
204
        switch (file.tokenAt(binary->binary_op_token).kind()) {
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
        case T_LESS_EQUAL:
            flipToken = T_GREATER_EQUAL;
            break;
        case T_LESS:
            flipToken = T_GREATER;
            break;
        case T_GREATER:
            flipToken = T_LESS;
            break;
        case T_GREATER_EQUAL:
            flipToken = T_LESS_EQUAL;
            break;
        case T_EQUAL_EQUAL:
        case T_EXCLAIM_EQUAL:
        case T_AMPER_AMPER:
        case T_PIPE_PIPE:
            flipToken = T_EOF_SYMBOL;
            break;
        default:
            return result;
        }

        QString replacement;
        if (flipToken != T_EOF_SYMBOL) {
            Token tok;
            tok.f.kind = flipToken;
            replacement = QLatin1String(tok.spell());
        }

        result.append(QuickFixOperation::Ptr(new Operation(state, index, binary, replacement)));
        return result;
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, BinaryExpressionAST *binary, QString replacement)
            : CppQuickFixOperation(state)
            , binary(binary)
            , replacement(replacement)
        {
            setPriority(priority);
        }

        virtual QString description() const
        {
            if (replacement.isEmpty())
                return QApplication::translate("CppTools::QuickFix", "Swap Operands");
            else
                return QApplication::translate("CppTools::QuickFix", "Rewrite Using %1").arg(replacement);
        }

258
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
259
260
261
        {
            ChangeSet changes;

262
            changes.flip(currentFile->range(binary->left_expression), currentFile->range(binary->right_expression));
263
            if (! replacement.isEmpty())
264
                changes.replace(currentFile->range(binary->binary_op_token), replacement);
265

266
            currentFile->change(changes);
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
        }

    private:
        BinaryExpressionAST *binary;
        QString replacement;
    };
};

/*
    Rewrite
    !a && !b

    As
    !(a || b)
*/
class RewriteLogicalAndOp: public CppQuickFixFactory
{
public:
    virtual QList<QuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        QList<QuickFixOperation::Ptr> result;
        BinaryExpressionAST *expression = 0;
        const QList<AST *> &path = state.path();
290
        const CppRefactoringFile &file = state.currentFile();
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307

        int index = path.size() - 1;
        for (; index != -1; --index) {
            expression = path.at(index)->asBinaryExpression();
            if (expression)
                break;
        }

        if (! expression)
            return result;

        if (! state.isCursorOn(expression->binary_op_token))
            return result;

        QSharedPointer<Operation> op(new Operation(state));

        if (expression->match(op->pattern, &matcher) &&
308
309
310
                file.tokenAt(op->pattern->binary_op_token).is(T_AMPER_AMPER) &&
                file.tokenAt(op->left->unary_op_token).is(T_EXCLAIM) &&
                file.tokenAt(op->right->unary_op_token).is(T_EXCLAIM)) {
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
            op->setDescription(QApplication::translate("CppTools::QuickFix", "Rewrite Condition Using ||"));
            op->setPriority(index);
            result.append(op);
        }

        return result;
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        QSharedPointer<ASTPatternBuilder> mk;
        UnaryExpressionAST *left;
        UnaryExpressionAST *right;
        BinaryExpressionAST *pattern;

        Operation(const CppQuickFixState &state)
            : CppQuickFixOperation(state)
            , mk(new ASTPatternBuilder)
        {
            left = mk->UnaryExpression();
            right = mk->UnaryExpression();
            pattern = mk->BinaryExpression(left, right);
        }

337
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
338
339
        {
            ChangeSet changes;
340
341
342
343
344
            changes.replace(currentFile->range(pattern->binary_op_token), QLatin1String("||"));
            changes.remove(currentFile->range(left->unary_op_token));
            changes.remove(currentFile->range(right->unary_op_token));
            const int start = currentFile->startOf(pattern);
            const int end = currentFile->endOf(pattern);
345
346
347
            changes.insert(start, QLatin1String("!("));
            changes.insert(end, QLatin1String(")"));

348
            currentFile->change(changes);
349
            currentFile->indent(currentFile->range(pattern));
350
351
352
353
354
355
356
        }
    };

private:
    ASTMatcher matcher;
};

357
358
359
360
361
362
363
364
/*
    Rewrite
    int *a, b;

    As
    int *a;
    int b;
*/
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
class SplitSimpleDeclarationOp: public CppQuickFixFactory
{
    static bool checkDeclaration(SimpleDeclarationAST *declaration)
    {
        if (! declaration->semicolon_token)
            return false;

        if (! declaration->decl_specifier_list)
            return false;

        for (SpecifierListAST *it = declaration->decl_specifier_list; it; it = it->next) {
            SpecifierAST *specifier = it->value;

            if (specifier->asEnumSpecifier() != 0)
                return false;

            else if (specifier->asClassSpecifier() != 0)
                return false;
        }

        if (! declaration->declarator_list)
            return false;

        else if (! declaration->declarator_list->next)
            return false;

        return true;
    }

public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        QList<CppQuickFixOperation::Ptr> result;
        CoreDeclaratorAST *core_declarator = 0;
        const QList<AST *> &path = state.path();
400
        const CppRefactoringFile &file = state.currentFile();
401
402
403
404
405
406
407
408
409
410
411

        for (int index = path.size() - 1; index != -1; --index) {
            AST *node = path.at(index);

            if (CoreDeclaratorAST *coreDecl = node->asCoreDeclarator())
                core_declarator = coreDecl;

            else if (SimpleDeclarationAST *simpleDecl = node->asSimpleDeclaration()) {
                if (checkDeclaration(simpleDecl)) {
                    SimpleDeclarationAST *declaration = simpleDecl;

412
                    const int cursorPosition = file.cursor().selectionStart();
413

414
415
                    const int startOfDeclSpecifier = file.startOf(declaration->decl_specifier_list->firstToken());
                    const int endOfDeclSpecifier = file.endOf(declaration->decl_specifier_list->lastToken() - 1);
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

                    if (cursorPosition >= startOfDeclSpecifier && cursorPosition <= endOfDeclSpecifier) {
                        // the AST node under cursor is a specifier.
                        return singleResult(new Operation(state, index, declaration));
                    }

                    if (core_declarator && state.isCursorOn(core_declarator)) {
                        // got a core-declarator under the text cursor.
                        return singleResult(new Operation(state, index, declaration));
                    }
                }

                break;
            }
        }

        return result;
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, SimpleDeclarationAST *decl)
            : CppQuickFixOperation(state, priority)
            , declaration(decl)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Split Declaration"));
        }

447
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
448
449
450
451
        {
            ChangeSet changes;

            SpecifierListAST *specifiers = declaration->decl_specifier_list;
452
453
454
            int declSpecifiersStart = currentFile->startOf(specifiers->firstToken());
            int declSpecifiersEnd = currentFile->endOf(specifiers->lastToken() - 1);
            int insertPos = currentFile->endOf(declaration->semicolon_token);
455
456
457
458
459
460
461
462
463

            DeclaratorAST *prevDeclarator = declaration->declarator_list->value;

            for (DeclaratorListAST *it = declaration->declarator_list->next; it; it = it->next) {
                DeclaratorAST *declarator = it->value;

                changes.insert(insertPos, QLatin1String("\n"));
                changes.copy(declSpecifiersStart, declSpecifiersEnd, insertPos);
                changes.insert(insertPos, QLatin1String(" "));
464
                changes.move(currentFile->range(declarator), insertPos);
465
466
                changes.insert(insertPos, QLatin1String(";"));

467
468
                const int prevDeclEnd = currentFile->endOf(prevDeclarator);
                changes.remove(prevDeclEnd, currentFile->startOf(declarator));
469
470
471
472

                prevDeclarator = declarator;
            }

473
            currentFile->change(changes);
474
            currentFile->indent(currentFile->range(declaration));
475
476
477
478
479
480
481
482
483
        }

    private:
        SimpleDeclarationAST *declaration;
    };
};

/*
    Add curly braces to a if statement that doesn't already contain a
484
485
486
487
488
489
490
491
    compound statement. I.e.

    if (a)
        b;
    becomes
    if (a) {
        b;
    }
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
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
*/
class AddBracesToIfOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();

        // show when we're on the 'if' of an if statement
        int index = path.size() - 1;
        IfStatementAST *ifStatement = path.at(index)->asIfStatement();
        if (ifStatement && state.isCursorOn(ifStatement->if_token) && ifStatement->statement
            && ! ifStatement->statement->asCompoundStatement()) {
            return singleResult(new Operation(state, index, ifStatement->statement));
        }

        // or if we're on the statement contained in the if
        // ### This may not be such a good idea, consider nested ifs...
        for (; index != -1; --index) {
            IfStatementAST *ifStatement = path.at(index)->asIfStatement();
            if (ifStatement && ifStatement->statement
                && state.isCursorOn(ifStatement->statement)
                && ! ifStatement->statement->asCompoundStatement()) {
                return singleResult(new Operation(state, index, ifStatement->statement));
            }
        }

        // ### This could very well be extended to the else branch
        // and other nodes entirely.

        return noResult();
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, StatementAST *statement)
            : CppQuickFixOperation(state, priority)
            , _statement(statement)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Add Curly Braces"));
        }

537
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
538
539
540
        {
            ChangeSet changes;

541
            const int start = currentFile->endOf(_statement->firstToken() - 1);
542
543
            changes.insert(start, QLatin1String(" {"));

544
            const int end = currentFile->endOf(_statement->lastToken() - 1);
545
546
            changes.insert(end, "\n}");

547
            currentFile->change(changes);
548
            currentFile->indent(Utils::ChangeSet::Range(start, end));
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
        }

    private:
        StatementAST *_statement;
    };
};

/*
    Replace
    if (Type name = foo()) {...}

    With
    Type name = foo;
    if (name) {...}
*/
class MoveDeclarationOutOfIfOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();
        QSharedPointer<Operation> op(new Operation(state));

        int index = path.size() - 1;
        for (; index != -1; --index) {
            if (IfStatementAST *statement = path.at(index)->asIfStatement()) {
                if (statement->match(op->pattern, &op->matcher) && op->condition->declarator) {
                    DeclaratorAST *declarator = op->condition->declarator;
                    op->core = declarator->core_declarator;
                    if (! op->core)
                        return noResult();

                    if (state.isCursorOn(op->core)) {
                        QList<CppQuickFixOperation::Ptr> result;
                        op->setPriority(index);
                        result.append(op);
                        return result;
                    }
                }
            }
        }

        return noResult();
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state)
            : CppQuickFixOperation(state)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Move Declaration out of Condition"));

            condition = mk.Condition();
            pattern = mk.IfStatement(condition);
        }

608
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
609
610
611
        {
            ChangeSet changes;

612
            changes.copy(currentFile->range(core), currentFile->startOf(condition));
613

614
615
            int insertPos = currentFile->startOf(pattern);
            changes.move(currentFile->range(condition), insertPos);
616
617
            changes.insert(insertPos, QLatin1String(";\n"));

618
            currentFile->change(changes);
619
            currentFile->indent(currentFile->range(pattern));
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
        }

        ASTMatcher matcher;
        ASTPatternBuilder mk;
        CPPEditor *editor;
        ConditionAST *condition;
        IfStatementAST *pattern;
        CoreDeclaratorAST *core;
    };
};

/*
    Replace
    while (Type name = foo()) {...}

    With
    Type name;
    while ((name = foo()) != 0) {...}
*/
class MoveDeclarationOutOfWhileOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();
        QSharedPointer<Operation> op(new Operation(state));

        int index = path.size() - 1;
        for (; index != -1; --index) {
            if (WhileStatementAST *statement = path.at(index)->asWhileStatement()) {
                if (statement->match(op->pattern, &op->matcher) && op->condition->declarator) {
                    DeclaratorAST *declarator = op->condition->declarator;
                    op->core = declarator->core_declarator;

                    if (! op->core)
                        return noResult();

657
                    else if (! declarator->equal_token)
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
                        return noResult();

                    else if (! declarator->initializer)
                        return noResult();

                    if (state.isCursorOn(op->core)) {
                        QList<CppQuickFixOperation::Ptr> result;
                        op->setPriority(index);
                        result.append(op);
                        return result;
                    }
                }
            }
        }

        return noResult();
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state)
            : CppQuickFixOperation(state)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Move Declaration out of Condition"));

            condition = mk.Condition();
            pattern = mk.WhileStatement(condition);
        }

690
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
691
692
693
        {
            ChangeSet changes;

694
695
            changes.insert(currentFile->startOf(condition), QLatin1String("("));
            changes.insert(currentFile->endOf(condition), QLatin1String(") != 0"));
696

697
698
699
700
            int insertPos = currentFile->startOf(pattern);
            const int conditionStart = currentFile->startOf(condition);
            changes.move(conditionStart, currentFile->startOf(core), insertPos);
            changes.copy(currentFile->range(core), insertPos);
701
702
            changes.insert(insertPos, QLatin1String(";\n"));

703
            currentFile->change(changes);
704
            currentFile->indent(currentFile->range(pattern));
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
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
        }

        ASTMatcher matcher;
        ASTPatternBuilder mk;
        CPPEditor *editor;
        ConditionAST *condition;
        WhileStatementAST *pattern;
        CoreDeclaratorAST *core;
    };
};

/*
  Replace
     if (something && something_else) {
     }

  with
     if (something) {
        if (something_else) {
        }
     }

  and
    if (something || something_else)
      x;

  with
    if (something)
      x;
    else if (something_else)
      x;
*/
class SplitIfStatementOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        IfStatementAST *pattern = 0;
        const QList<AST *> &path = state.path();

        int index = path.size() - 1;
        for (; index != -1; --index) {
            AST *node = path.at(index);
            if (IfStatementAST *stmt = node->asIfStatement()) {
                pattern = stmt;
                break;
            }
        }

        if (! pattern || ! pattern->statement)
            return noResult();

        unsigned splitKind = 0;
        for (++index; index < path.size(); ++index) {
            AST *node = path.at(index);
            BinaryExpressionAST *condition = node->asBinaryExpression();
            if (! condition)
                return noResult();

764
            Token binaryToken = state.currentFile().tokenAt(condition->binary_op_token);
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

            // only accept a chain of ||s or &&s - no mixing
            if (! splitKind) {
                splitKind = binaryToken.kind();
                if (splitKind != T_AMPER_AMPER && splitKind != T_PIPE_PIPE)
                    return noResult();
                // we can't reliably split &&s in ifs with an else branch
                if (splitKind == T_AMPER_AMPER && pattern->else_statement)
                    return noResult();
            } else if (splitKind != binaryToken.kind()) {
                return noResult();
            }

            if (state.isCursorOn(condition->binary_op_token))
                return singleResult(new Operation(state, index, pattern, condition));
        }

        return noResult();
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority,
                  IfStatementAST *pattern, BinaryExpressionAST *condition)
            : CppQuickFixOperation(state, priority)
            , pattern(pattern)
            , condition(condition)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Split if Statement"));
        }

799
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
800
        {
801
            const Token binaryToken = currentFile->tokenAt(condition->binary_op_token);
802
803

            if (binaryToken.is(T_AMPER_AMPER))
804
                splitAndCondition(currentFile);
805
            else
806
                splitOrCondition(currentFile);
807
808
        }

809
        void splitAndCondition(CppRefactoringFile *currentFile)
810
811
812
        {
            ChangeSet changes;

813
            int startPos = currentFile->startOf(pattern);
814
            changes.insert(startPos, QLatin1String("if ("));
815
            changes.move(currentFile->range(condition->left_expression), startPos);
816
817
            changes.insert(startPos, QLatin1String(") {\n"));

818
819
820
            const int lExprEnd = currentFile->endOf(condition->left_expression);
            changes.remove(lExprEnd, currentFile->startOf(condition->right_expression));
            changes.insert(currentFile->endOf(pattern), QLatin1String("\n}"));
821

822
            currentFile->change(changes);
823
            currentFile->indent(currentFile->range(pattern));
824
825
        }

826
        void splitOrCondition(CppRefactoringFile *currentFile)
827
828
829
830
831
832
        {
            ChangeSet changes;

            StatementAST *ifTrueStatement = pattern->statement;
            CompoundStatementAST *compoundStatement = ifTrueStatement->asCompoundStatement();

833
            int insertPos = currentFile->endOf(ifTrueStatement);
834
835
836
837
838
839
            if (compoundStatement)
                changes.insert(insertPos, QLatin1String(" "));
            else
                changes.insert(insertPos, QLatin1String("\n"));
            changes.insert(insertPos, QLatin1String("else if ("));

840
841
            const int rExprStart = currentFile->startOf(condition->right_expression);
            changes.move(rExprStart, currentFile->startOf(pattern->rparen_token), insertPos);
842
843
            changes.insert(insertPos, QLatin1String(")"));

844
845
            const int rParenEnd = currentFile->endOf(pattern->rparen_token);
            changes.copy(rParenEnd, currentFile->endOf(pattern->statement), insertPos);
846

847
848
            const int lExprEnd = currentFile->endOf(condition->left_expression);
            changes.remove(lExprEnd, currentFile->startOf(condition->right_expression));
849

850
            currentFile->change(changes);
851
            currentFile->indent(currentFile->range(pattern));
852
853
854
855
856
857
858
859
860
861
        }

    private:
        IfStatementAST *pattern;
        BinaryExpressionAST *condition;
    };
};

/*
  Replace
862
863
864
865
866
    "abcd" -> QLatin1String("abcd")
    'a' -> QLatin1Char('a')
  Except if they are already enclosed in
    QLatin1Char, QT_TRANSLATE_NOOP, tr,
    trUtf8, QLatin1Literal, QLatin1String
867
868
869
870
871
872
873
874
875
876
877
*/
class WrapStringLiteral: public CppQuickFixFactory
{
public:
    enum Type { TypeString, TypeObjCString, TypeChar, TypeNone };

    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        ExpressionAST *literal = 0;
        Type type = TypeNone;
        const QList<AST *> &path = state.path();
878
        const CppRefactoringFile &file = state.currentFile();
879
880
881
882
883
884
885
886

        if (path.isEmpty())
            return noResult(); // nothing to do

        literal = path.last()->asStringLiteral();

        if (! literal) {
            literal = path.last()->asNumericLiteral();
887
            if (!literal || !file.tokenAt(literal->asNumericLiteral()->literal_token).is(T_CHAR_LITERAL))
888
889
890
891
892
893
894
895
896
897
                return noResult();
            else
                type = TypeChar;
        } else {
            type = TypeString;
        }

        if (path.size() > 1) {
            if (CallAST *call = path.at(path.size() - 2)->asCall()) {
                if (call->base_expression) {
Roberto Raggi's avatar
Roberto Raggi committed
898
899
                    if (IdExpressionAST *idExpr = call->base_expression->asIdExpression()) {
                        if (SimpleNameAST *functionName = idExpr->name->asSimpleName()) {
900
                            const QByteArray id(file.tokenAt(functionName->identifier_token).identifier->chars());
Roberto Raggi's avatar
Roberto Raggi committed
901
902
903
904
905
906

                            if (id == "QT_TRANSLATE_NOOP" || id == "tr" || id == "trUtf8"
                                    || (type == TypeString && (id == "QLatin1String" || id == "QLatin1Literal"))
                                    || (type == TypeChar && id == "QLatin1Char"))
                                return noResult(); // skip it
                        }
907
908
909
910
911
912
                    }
                }
            }
        }

        if (type == TypeString) {
913
            if (file.charAt(file.startOf(literal)) == QLatin1Char('@'))
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
                type = TypeObjCString;
        }
        return singleResult(new Operation(state,
                                          path.size() - 1, // very high priority
                                          type,
                                          literal));
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, Type type,
                  ExpressionAST *literal)
            : CppQuickFixOperation(state, priority)
            , type(type)
            , literal(literal)
        {
            if (type == TypeChar)
                setDescription(QApplication::translate("CppTools::QuickFix",
                                                       "Enclose in QLatin1Char(...)"));
            else
                setDescription(QApplication::translate("CppTools::QuickFix",
                                                       "Enclose in QLatin1String(...)"));
        }

940
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
941
942
943
        {
            ChangeSet changes;

944
            const int startPos = currentFile->startOf(literal);
945
946
947
948
949
950
951
952
            QLatin1String replacement = (type == TypeChar ? QLatin1String("QLatin1Char(")
                                                          : QLatin1String("QLatin1String("));

            if (type == TypeObjCString)
                changes.replace(startPos, startPos + 1, replacement);
            else
                changes.insert(startPos, replacement);

953
            changes.insert(currentFile->endOf(literal), ")");
954

955
            currentFile->change(changes);
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
        }

    private:
        Type type;
        ExpressionAST *literal;
    };
};

/*
  Replace
    "abcd"
  With
    tr("abcd") or
    QCoreApplication::translate("CONTEXT", "abcd") or
    QT_TRANSLATE_NOOP("GLOBAL", "abcd")
971
  depending on what is available.
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
*/
class TranslateStringLiteral: public CppQuickFixFactory
{
public:
    enum TranslationOption { unknown, useTr, useQCoreApplicationTranslate, useMacro };

    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();
        // Initialize
        ExpressionAST *literal = 0;
        QString trContext;

        if (path.isEmpty())
            return noResult();

        literal = path.last()->asStringLiteral();
        if (!literal)
            return noResult(); // No string, nothing to do

        // Do we already have a translation markup?
        if (path.size() >= 2) {
            if (CallAST *call = path.at(path.size() - 2)->asCall()) {
                if (call->base_expression) {
Roberto Raggi's avatar
Roberto Raggi committed
996
997
                    if (IdExpressionAST *idExpr = call->base_expression->asIdExpression()) {
                        if (SimpleNameAST *functionName = idExpr->name->asSimpleName()) {
998
                            const QByteArray id(state.currentFile().tokenAt(functionName->identifier_token).identifier->chars());
Roberto Raggi's avatar
Roberto Raggi committed
999
1000
1001
1002
1003
1004
1005

                            if (id == "tr" || id == "trUtf8"
                                    || id == "translate"
                                    || id == "QT_TRANSLATE_NOOP"
                                    || id == "QLatin1String" || id == "QLatin1Literal")
                                return noResult(); // skip it
                        }
1006
1007
1008
1009
1010
1011
                    }
                }
            }
        }

        QSharedPointer<Control> control = state.context().control();
1012
        const Name *trName = control->identifier("tr");
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058

        // Check whether we are in a method:
        for (int i = path.size() - 1; i >= 0; --i)
        {
            if (FunctionDefinitionAST *definition = path.at(i)->asFunctionDefinition()) {
                Function *function = definition->symbol;
                ClassOrNamespace *b = state.context().lookupType(function);
                if (b) {
                    // Do we have a tr method?
                    foreach(const LookupItem &r, b->find(trName)) {
                        Symbol *s = r.declaration();
                        if (s->type()->isFunctionType()) {
                            // no context required for tr
                            return singleResult(new Operation(state, path.size() - 1, literal, useTr, trContext));
                        }
                    }
                }
                // We need to do a QCA::translate, so we need a context.
                // Use fully qualified class name:
                Overview oo;
                foreach (const Name *n, LookupContext::path(function)) {
                    if (!trContext.isEmpty())
                        trContext.append(QLatin1String("::"));
                    trContext.append(oo.prettyName(n));
                }
                // ... or global if none available!
                if (trContext.isEmpty())
                    trContext = QLatin1String("GLOBAL");
                return singleResult(new Operation(state, path.size() - 1, literal, useQCoreApplicationTranslate, trContext));
            }
        }

        // We need to use Q_TRANSLATE_NOOP
        return singleResult(new Operation(state, path.size() - 1, literal, useMacro, QLatin1String("GLOBAL")));
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, ExpressionAST *literal, TranslationOption option, const QString &context)
            : CppQuickFixOperation(state, priority)
            , m_literal(literal)
            , m_option(option)
            , m_context(context)
        {
1059
            setDescription(QApplication::translate("CppTools::QuickFix", "Mark as Translatable"));
1060
1061
        }

1062
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
1063
1064
1065
        {
            ChangeSet changes;

1066
            const int startPos = currentFile->startOf(m_literal);
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
            QString replacement(QLatin1String("tr("));
            if (m_option == useQCoreApplicationTranslate) {
                replacement = QLatin1String("QCoreApplication::translate(\"")
                        + m_context + QLatin1String("\", ");
            } else if (m_option == useMacro) {
                replacement = QLatin1String("QT_TRANSLATE_NOOP(\"")
                        + m_context + QLatin1String("\", ");
            }

            changes.insert(startPos, replacement);
1077
            changes.insert(currentFile->endOf(m_literal), QLatin1String(")"));
1078

1079
            currentFile->change(changes);
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
        }

    private:
        ExpressionAST *m_literal;
        TranslationOption m_option;
        QString m_context;
    };
};

class CStringToNSString: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
1094
1095
        const CppRefactoringFile &file = state.currentFile();

1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
        if (state.editor()->mimeType() != CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE)
            return noResult();

        StringLiteralAST *stringLiteral = 0;
        CallAST *qlatin1Call = 0;
        const QList<AST *> &path = state.path();

        if (path.isEmpty())
            return noResult(); // nothing to do

        stringLiteral = path.last()->asStringLiteral();

        if (! stringLiteral)
            return noResult();

1111
        else if (file.charAt(file.startOf(stringLiteral)) == QLatin1Char('@'))
1112
1113
1114
1115
1116
            return noResult(); // it's already an objc string literal.

        else if (path.size() > 1) {
            if (CallAST *call = path.at(path.size() - 2)->asCall()) {
                if (call->base_expression) {
Roberto Raggi's avatar
Roberto Raggi committed
1117
1118
                    if (IdExpressionAST *idExpr = call->base_expression->asIdExpression()) {
                        if (SimpleNameAST *functionName = idExpr->name->asSimpleName()) {
1119
                            const QByteArray id(state.currentFile().tokenAt(functionName->identifier_token).identifier->chars());
1120

Roberto Raggi's avatar
Roberto Raggi committed
1121
1122
1123
                            if (id == "QLatin1String" || id == "QLatin1Literal")
                                qlatin1Call = call;
                        }
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
                    }
                }
            }
        }

        return singleResult(new Operation(state, path.size() - 1, stringLiteral, qlatin1Call));
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, StringLiteralAST *stringLiteral, CallAST *qlatin1Call)
            : CppQuickFixOperation(state, priority)
            , stringLiteral(stringLiteral)
            , qlatin1Call(qlatin1Call)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Convert to Objective-C String Literal"));
        }

1145
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
1146
1147
1148
1149
        {
            ChangeSet changes;

            if (qlatin1Call) {
1150
1151
                changes.replace(currentFile->startOf(qlatin1Call), currentFile->startOf(stringLiteral), QLatin1String("@"));
                changes.remove(currentFile->endOf(stringLiteral), currentFile->endOf(qlatin1Call));
1152
            } else {
1153
                changes.insert(currentFile->startOf(stringLiteral), "@");
1154
1155
            }

1156
            currentFile->change(changes);
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
        }

    private:
        StringLiteralAST *stringLiteral;
        CallAST *qlatin1Call;
    };
};

/*
  Base class for converting numeric literals between decimal, octal and hex.
  Does the base check for the specific ones and parses the number.
  Test cases:
    0xFA0Bu;
    0X856A;
    298.3;
    199;
    074;
    199L;
    074L;
    -199;
    -017;
    0783; // invalid octal
    0; // border case, allow only hex<->decimal
*/
class ConvertNumericLiteral: public CppQuickFixFactory
{
public:
    virtual QList<QuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        QList<QuickFixOperation::Ptr> result;

        const QList<AST *> &path = state.path();
1189
        const CppRefactoringFile &file = state.currentFile();
1190
1191
1192
1193
1194
1195
1196
1197
1198

        if (path.isEmpty())
            return result; // nothing to do

        NumericLiteralAST *literal = path.last()->asNumericLiteral();

        if (! literal)
            return result;

1199
        Token token = file.tokenAt(literal->asNumericLiteral()->literal_token);
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
        if (!token.is(T_NUMERIC_LITERAL))
            return result;
        const NumericLiteral *numeric = token.number;
        if (numeric->isDouble() || numeric->isFloat())
            return result;

        // remove trailing L or U and stuff
        const char * const spell = numeric->chars();
        int numberLength = numeric->size();
        while (numberLength > 0 && (spell[numberLength-1] < '0' || spell[numberLength-1] > 'F'))
            --numberLength;
        if (numberLength < 1)
            return result;

        // convert to number
        bool valid;
        ulong value = QString::fromUtf8(spell).left(numberLength).toULong(&valid, 0);
        if (!valid) // e.g. octal with digit > 7
            return result;

        const int priority = path.size() - 1; // very high priority
1221
        const int start = file.startOf(literal);
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
        const char * const str = numeric->chars();

        if (!numeric->isHex()) {
            /*
              Convert integer literal to hex representation.
              Replace
                32
                040
              With
                0x20

            */
            QString replacement;
            replacement.sprintf("0x%lX", value);
            QuickFixOperation::Ptr op(new ConvertNumeric(state, start, start + numberLength, replacement));
            op->setDescription(QApplication::translate("CppTools::QuickFix", "Convert to Hexadecimal"));
            op->setPriority(priority);
            result.append(op);
        }

        if (value != 0) {
            if (!(numberLength > 1 && str[0] == '0' && str[1] != 'x' && str[1] != 'X')) {
                /*
                  Convert integer literal to octal representation.
                  Replace
                    32
                    0x20
                  With
                    040
                */
                QString replacement;
                replacement.sprintf("0%lo", value);
                QuickFixOperation::Ptr op(new ConvertNumeric(state, start, start + numberLength, replacement));
                op->setDescription(QApplication::translate("CppTools::QuickFix", "Convert to Octal"));
                op->setPriority(priority);
                result.append(op);
            }
        }

        if (value != 0 || numeric->isHex()) {
            if (!(numberLength > 1 && str[0] != '0')) {
                /*
                  Convert integer literal to decimal representation.
                  Replace
                    0x20
                    040
                  With
                    32
                */
                QString replacement;
                replacement.sprintf("%lu", value);
                QuickFixOperation::Ptr op(new ConvertNumeric(state, start, start + numberLength, replacement));
                op->setDescription(QApplication::translate("CppTools::QuickFix", "Convert to Decimal"));
                op->setPriority(priority);
                result.append(op);
            }
        }

        return result;
    }

private:
    class ConvertNumeric: public CppQuickFixOperation
    {
    public:
        ConvertNumeric(const CppQuickFixState &state, int start, int end, const QString &replacement)
            : CppQuickFixOperation(state)
            , start(start)
            , end(end)
            , replacement(replacement)
        {}

1294
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
1295
1296
1297
        {
            ChangeSet changes;
            changes.replace(start, end, replacement);
1298
            currentFile->change(changes);
1299
1300
1301
1302
1303
1304
1305
1306
        }

    protected:
        int start, end;
        QString replacement;
    };
};

1307
1308
1309
/*
    Can be triggered on a class forward declaration to add the matching #include.
*/
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
class FixForwardDeclarationOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();

        for (int index = path.size() - 1; index != -1; --index) {
            AST *ast = path.at(index);
            if (NamedTypeSpecifierAST *namedTy = ast->asNamedTypeSpecifier()) {
                if (Symbol *fwdClass = checkName(state, namedTy->name))
                    return singleResult(new Operation(state, index, fwdClass));
            } else if (ElaboratedTypeSpecifierAST *eTy = ast->asElaboratedTypeSpecifier()) {
                if (Symbol *fwdClass = checkName(state, eTy->name))
                    return singleResult(new Operation(state, index, fwdClass));
            }
        }

        return noResult();
    }

protected:
    static Symbol *checkName(const CppQuickFixState &state, NameAST *ast)
    {
        if (ast && state.isCursorOn(ast)) {
            if (const Name *name = ast->name) {
                unsigned line, column;
                state.document()->translationUnit()->getTokenStartPosition(ast->firstToken(), &line, &column);

                Symbol *fwdClass = 0;

                foreach (const LookupItem &r, state.context().lookup(name, state.document()->scopeAt(line, column))) {
                    if (! r.declaration())
                        continue;
                    else if (ForwardClassDeclaration *fwd = r.declaration()->asForwardClassDeclaration())
                        fwdClass = fwd;
                    else if (r.declaration()->isClass())
                        return 0; // nothing to do.
                }

                return fwdClass;
            }
        }

        return 0;
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, Symbol *fwdClass)
            : CppQuickFixOperation(state, priority)
            , fwdClass(fwdClass)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
1366
                                                   "#include Header File"));
1367
1368
        }

1369
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
        {
            Q_ASSERT(fwdClass != 0);

            if (Class *k = state().snapshot().findMatchingClassDeclaration(fwdClass)) {
                const QString headerFile = QString::fromUtf8(k->fileName(), k->fileNameLength());

                // collect the fwd headers
                Snapshot fwdHeaders;
                fwdHeaders.insert(state().snapshot().document(headerFile));
                foreach (Document::Ptr doc, state().snapshot()) {
                    QFileInfo headerFileInfo(doc->fileName());
                    if (doc->globalSymbolCount() == 0 && doc->includes().size() == 1)
                        fwdHeaders.insert(doc);
                    else if (headerFileInfo.suffix().isEmpty())
                        fwdHeaders.insert(doc);
                }


                DependencyTable dep;
                dep.build(fwdHeaders);
                QStringList candidates = dep.dependencyTable().value(headerFile);

                const QString className = QString::fromUtf8(k->identifier()->chars());

                QString best;
                foreach (const QString &c, candidates) {
                    QFileInfo headerFileInfo(c);
                    if (headerFileInfo.fileName() == className) {
                        best = c;
                        break;
                    } else if (headerFileInfo.fileName().at(0).isUpper()) {
                        best = c;
                        // and continue
                    } else if (! best.isEmpty()) {
                        if (c.count(QLatin1Char('/')) < best.count(QLatin1Char('/')))
                            best = c;
                    }
                }

                if (best.isEmpty())
                    best = headerFile;

1412
                int pos = currentFile->startOf(1);
1413

1414
                unsigned currentLine = currentFile->cursor().blockNumber() + 1;
1415
1416
1417
1418
1419
1420
1421
                unsigned bestLine = 0;
                foreach (const Document::Include &incl, state().document()->includes()) {
                    if (incl.line() < currentLine)
                        bestLine = incl.line();
                }

                if (bestLine)
1422
                    pos = currentFile->document()->findBlockByNumber(bestLine).position();
1423
1424
1425

                Utils::ChangeSet changes;
                changes.insert(pos, QString("#include <%1>\n").arg(QFileInfo(best).fileName()));
1426
                currentFile->change(changes);
1427
1428
1429
1430
1431
1432
1433
1434
            }
        }

    private:
        Symbol *fwdClass;
    };
};

1435
1436
1437
1438
1439
1440
1441
/*
  Rewrites
    a = foo();
  As
    Type a = foo();
  Where Type is the return type of foo()
*/
1442
1443
1444
1445
1446
1447
class AddLocalDeclarationOp: public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();
1448
        const CppRefactoringFile &file = state.currentFile();
1449
1450
1451

        for (int index = path.size() - 1; index != -1; --index) {
            if (BinaryExpressionAST *binary = path.at(index)->asBinaryExpression()) {
1452
                if (binary->left_expression && binary->right_expression && file.tokenAt(binary->binary_op_token).is(T_EQUAL)) {
Roberto Raggi's avatar
Roberto Raggi committed
1453
1454
1455
                    IdExpressionAST *idExpr = binary->left_expression->asIdExpression();
                    if (state.isCursorOn(binary->left_expression) && idExpr && idExpr->name->asSimpleName() != 0) {
                        SimpleNameAST *nameAST = idExpr->name->asSimpleName();
1456
                        const QList<LookupItem> results = state.context().lookup(nameAST->name, file.scopeAt(nameAST->firstToken()));
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
                        Declaration *decl = 0;
                        foreach (const LookupItem &r, results) {
                            if (! r.declaration())
                                continue;
                            else if (Declaration *d = r.declaration()->asDeclaration()) {
                                if (! d->type()->isFunctionType()) {
                                    decl = d;
                                    break;
                                }
                            }
                        }

                        if (! decl) {
                            return singleResult(new Operation(state, index, binary));
                        }
                    }
                }
            }
        }

        return noResult();
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, BinaryExpressionAST *binaryAST)
            : CppQuickFixOperation(state, priority)
            , binaryAST(binaryAST)
        {
1488
            setDescription(QApplication::translate("CppTools::QuickFix", "Add local Declaration"));
1489
1490
        }

1491
        virtual void performChanges(CppRefactoringFile *currentFile, CppRefactoringChanges *)
1492
1493
1494
        {
            TypeOfExpression typeOfExpression;
            typeOfExpression.init(state().document(), state().snapshot(), state().context().bindings());
1495
1496
            const QList<LookupItem> result = typeOfExpression(currentFile->textOf(binaryAST->right_expression),
                                                              currentFile->scopeAt(binaryAST->firstToken()),
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
                                                              TypeOfExpression::Preprocess);

            if (! result.isEmpty()) {

                SubstitutionEnvironment env;
                env.setContext(state().context());
                env.switchScope(result.first().scope());
                UseQualifiedNames q;
                env.enter(&q);

                Control *control = state().context().control().data();
                FullySpecifiedType tn = rewriteType(result.first().type(), &env, control);

                Overview oo;
                QString ty = oo(tn);
                if (! ty.isEmpty()) {
                    const QChar ch = ty.at(ty.size() - 1);

                    if (ch.isLetterOrNumber() || ch == QLatin1Char(' ') || ch == QLatin1Char('>'))
                        ty += QLatin1Char(' ');

                    Utils::ChangeSet changes;
1519
                    changes.insert(currentFile->startOf(binaryAST), ty);
1520
                    currentFile->change(changes);
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
                }
            }
        }

    private:
        BinaryExpressionAST *binaryAST;
    };
};

/*
 * Turns "an_example_symbol" into "anExampleSymbol" and
 * "AN_EXAMPLE_SYMBOL" into "AnExampleSymbol".
 */
class ToCamelCaseConverter : public CppQuickFixFactory
{
public:
    virtual QList<CppQuickFixOperation::Ptr> match(const CppQuickFixState &state)
    {
        const QList<AST *> &path = state.path();

        if (path.isEmpty())
            return noResult();

        AST * const ast = path.last();
        const Name *name = 0;
        if (const NameAST * const nameAst = ast->asName()) {
            if (nameAst->name && nameAst->name->asNameId())
                name = nameAst->name;
        } else if (const NamespaceAST * const namespaceAst = ast->asNamespace()) {
            name = namespaceAst->symbol->name();
        }

        if (!name)
            return noResult();

        QString newName = QString::fromUtf8(name->identifier()->chars());
        if (newName.length() < 3)
            return noResult();
        for (int i = 1; i < newName.length() - 1; ++i) {
            if (Operation::isConvertibleUnderscore(newName, i))
                return singleResult(new Operation(state, path.size() - 1, newName));
        }

        return noResult();
    }

private:
    class Operation: public CppQuickFixOperation
    {
    public:
        Operation(const CppQuickFixState &state, int priority, const QString &newName)
            : CppQuickFixOperation(state, priority)
            , m_name(newName)
        {
            setDescription(QApplication::translate("CppTools::QuickFix",
                                                   "Convert to Camel Case ..."));
        }

1579
        virtual void performChanges(CppRefactoringFile *, CppRefactoringChanges *)
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
        {
            for (int i = 1; i < m_name.length(); ++i) {
                QCharRef c = m_name[i];
                if (c.isUpper()) {
                    c = c.toLower();
                } else if (i < m_name.length() - 1
                           && isConvertibleUnderscore(m_name, i)) {
                    m_name.remove(i, 1);
                    m_name[i] = m_name.at(i).toUpper();
                }
            }
            static_cast<CppEditor::Internal::CPPEditor*>(state().editor())->renameUsagesNow(m_name);
        }

        static bool isConvertibleUnderscore(const QString &name, int pos)
        {
            return name.at(pos) == QLatin1Char('_') && name.at(pos+1).isLetter()
                    && !(pos == 1 && name.at(0) == QLatin1Char('m'));
        }

    private:
        QString m_name;
    };
};

} // end of anonymous namespace

void CppQuickFixCollector::registerQuickFixes(ExtensionSystem::IPlugin *plugIn)
{
    plugIn->addAutoReleasedObject(new UseInverseOp);
    plugIn->addAutoReleasedObject(new FlipBinaryOp);
    plugIn->addAutoReleasedObject(new RewriteLogicalAndOp);
    plugIn->addAutoReleasedObject(new SplitSimpleDeclarationOp);
    plugIn->addAutoReleasedObject(new AddBracesToIfOp);
    plugIn->addAutoReleasedObject(new MoveDeclarationOutOfIfOp);
    plugIn->addAutoReleasedObject(new MoveDeclarationOutOfWhileOp);
    plugIn->addAutoReleasedObject(new SplitIfStatementOp);
    plugIn->addAutoReleasedObject(new WrapStringLiteral);
    plugIn->addAutoReleasedObject(new TranslateStringLiteral);
    plugIn->addAutoReleasedObject(new CStringToNSString);
    plugIn->addAutoReleasedObject(new ConvertNumericLiteral);
1621
    plugIn->addAutoReleasedObject(new Internal::CompleteSwitchCaseStatement);
1622
1623
1624
    plugIn->addAutoReleasedObject(new FixForwardDeclarationOp);
    plugIn->addAutoReleasedObject(new AddLocalDeclarationOp);
    plugIn->addAutoReleasedObject(new ToCamelCaseConverter);
1625
    plugIn->addAutoReleasedObject(new Internal::InsertQtPropertyMembers);
1626
    plugIn->addAutoReleasedObject(new Internal::DeclFromDef);
1627
    plugIn->addAutoReleasedObject(new Internal::DefFromDecl);
1628
}