summaryrefslogtreecommitdiff
path: root/src/plugins/cpptools/cppcodeformatter.cpp
blob: f7b12393b9fa711c27ef8c940726270d045e6521 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
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
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
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
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
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
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
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
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
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
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
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
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
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
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
1366
1367
1368
1369
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
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
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
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** 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.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#include "cppcodeformatter.h"

#include <Token.h>
#include <Lexer.h>

#include <texteditor/basetextdocumentlayout.h>
#include <texteditor/tabsettings.h>

#include <QtCore/QDebug>
#include <QtCore/QMetaEnum>
#include <QtGui/QTextDocument>
#include <QtGui/QTextCursor>
#include <QtGui/QTextBlock>

using namespace CPlusPlus;
using namespace CppTools;
using namespace TextEditor;
using namespace CppTools::Internal;

CodeFormatter::BlockData::BlockData()
    : m_blockRevision(-1)
{
}

CodeFormatter::CodeFormatter()
    : m_indentDepth(0)
    , m_paddingDepth(0)
    , m_tabSize(4)
{
}

CodeFormatter::~CodeFormatter()
{
}

void CodeFormatter::setTabSize(int tabSize)
{
    m_tabSize = tabSize;
}

void CodeFormatter::recalculateStateAfter(const QTextBlock &block)
{
    restoreCurrentState(block.previous());

    bool endedJoined = false;
    const int lexerState = tokenizeBlock(block, &endedJoined);
    m_tokenIndex = 0;
    m_newStates.clear();

    if (tokenAt(0).kind() == T_POUND) {
        enter(cpp_macro_start);
        m_tokenIndex = 1;
    }

    for (; m_tokenIndex < m_tokens.size(); ) {
        m_currentToken = tokenAt(m_tokenIndex);
        const int kind = m_currentToken.kind();

        switch (m_currentState.top().type) {
        case topmost_intro:
            tryDeclaration();
            break;

        case namespace_start:
            switch (kind) {
            case T_LBRACE:      enter(namespace_open); break;
            case T_SEMICOLON:
            case T_RBRACE:      leave(); break;
            } break;

        case namespace_open:
            if (tryDeclaration())
                break;
            switch (kind) {
            case T_RBRACE:      leave(); continue; // always nested in namespace_start
            } break;

        case class_start:
            switch (kind) {
            case T_SEMICOLON:   leave(); break;
            case T_LBRACE:      enter(class_open); break;
            } break;

        case class_open:
            if (tryDeclaration())
                break;
            switch (kind) {
            case T_RBRACE:      leave(); continue; // always nested in class_start
            } break;

        case enum_start:
            switch (kind) {
            case T_SEMICOLON:   leave(); break;
            case T_LBRACE:      enter(enum_open); break;
            } break;

        case enum_open:
            switch (kind) {
            case T_RBRACE:      leave(); continue; // always nested in enum_start
            case T_LBRACE:      enter(brace_list_open); break;
            } break;

        case brace_list_open:
            switch (kind) {
            case T_RBRACE:      leave(); break;
            case T_LBRACE:      enter(brace_list_open); break;
            } break;

        case using_start:
            switch (kind) {
            case T_SEMICOLON:   leave(); break;
            } break;

        case template_start:
            switch (kind) {
            case T_LESS:        turnInto(template_param); break;
            } break;

        case template_param:
            switch (kind) {
            case T_LESS:        enter(template_param); break;
            case T_GREATER:     leave(); break;
            } break;

        case operator_declaration:
            switch (kind) {
            case T_LPAREN:      break;
            default:            leave(); break;
            } break;

        case declaration_start:
            if (tryExpression(true))
                break;
            switch (kind) {
            case T_RBRACE:      leave(true); continue;
            case T_SEMICOLON:   leave(true); break;
            case T_EQUAL:       enter(initializer); break;
            case T_LBRACE:      enter(defun_open); break;
            case T_COLON:       enter(member_init_open); enter(member_init); break;
            case T_OPERATOR:    enter(operator_declaration); break;
            } break;

        case initializer:
            switch (kind) {
            case T_LBRACE:      enter(brace_list_open); break;
            default:            turnInto(expression); continue;
            } break;

        case expression:
            if (tryExpression())
                break;
            switch (kind) {
            case T_RBRACE:      leave(true); continue;
            case T_SEMICOLON:   leave(); continue;
            case T_LBRACE:
            case T_COLON:
                if (m_currentState.at(m_currentState.size() - 2).type == declaration_start) {
                    // oops, the expression was a function declaration argument list, hand lbrace/colon to declaration_start
                    leave();
                    continue;
                }
                break;
            } break;

        case arglist_open:
            if (tryExpression())
                break;
            switch (kind) {
            case T_SEMICOLON:   leave(true); break;
            case T_RBRACE:      leave(true); continue;
            case T_RPAREN:      leave(); break;
            } break;

        case ternary_op:
            if (tryExpression())
                break;
            switch (kind) {
            case T_RPAREN:
            case T_COMMA:
            case T_SEMICOLON:   leave(); continue; // always nested, propagate
            } break;

        case stream_op:
        case stream_op_cont:
            if (kind != T_LESS_LESS && kind != T_GREATER_GREATER && tryExpression())
                break;
            switch (kind) {
            case T_LESS_LESS:
            case T_GREATER_GREATER:
                if (m_currentState.top().type == stream_op)
                    enter(stream_op_cont);
                else // stream_op_cont already
                    turnInto(stream_op_cont);
                break;
            case T_RPAREN:
            case T_COMMA:
            case T_SEMICOLON:   leave(); continue; // always nested, propagate
            } break;

        case member_init_open:
            switch (kind) {
            case T_LBRACE:      turnInto(defun_open); break;
            case T_COMMA:       enter(member_init); break;
            case T_SEMICOLON:   leave(); continue; // try to recover
            } break;

        case member_init:
            switch (kind) {
            case T_LPAREN:      enter(member_init_paren_open); break;
            case T_RPAREN:      leave(); break;
            case T_LBRACE:
            case T_SEMICOLON:   leave(); continue; // try to recover
            } break;

        case member_init_paren_open:
            if (tryExpression())
                break;
            switch (kind) {
            case T_RPAREN:      leave(); continue;
            case T_SEMICOLON:   leave(); continue; // try to recover
            } break;

        case defun_open:
            if (tryStatement())
                break;
            switch (kind) {
            case T_RBRACE:      leave(); leave(); break; // always nested in declaration_start
            } break;

        case switch_statement:
        case statement_with_condition:
        case if_statement:
            switch (kind) {
            case T_LPAREN:      enter(condition_open); break;
            default:            leave(true); continue;
            } break;

        case maybe_else:
            if (m_currentToken.isComment()) {
                break;
            } else if (kind == T_ELSE) {
                turnInto(else_clause);
                enter(substatement);
                break;
            } else {
                leave(true);
                continue;
            }

        case else_clause:
            // ### shouldn't happen
            dump();
            Q_ASSERT(false);
            leave(true);
            break;

        case do_statement:
            // ### shouldn't happen
            dump();
            Q_ASSERT(false);
            leave(true);
            break;

        case return_statement:
            switch (kind) {
            case T_RBRACE:      leave(true); continue;
            case T_SEMICOLON:   leave(true); break;
            } break;

        case substatement:
            // prefer substatement_open over block_open
            if (kind != T_LBRACE && tryStatement())
                break;
            switch (kind) {
            case T_LBRACE:      turnInto(substatement_open); break;
            case T_SEMICOLON:   leave(true); break;
            case T_RBRACE:      leave(true); continue;
            } break;

        case for_statement:
            switch (kind) {
            case T_LPAREN:      enter(for_statement_paren_open); break;
            default:            leave(true); continue;
            } break;

        case for_statement_paren_open:
            enter(for_statement_init); continue;

        case for_statement_init:
            switch (kind) {
            case T_SEMICOLON:   turnInto(for_statement_condition); break;
            case T_LPAREN:      enter(condition_paren_open); break;
            case T_RPAREN:      turnInto(for_statement_expression); continue;
            } break;

        case for_statement_condition:
            switch (kind) {
            case T_SEMICOLON:   turnInto(for_statement_expression); break;
            case T_LPAREN:      enter(condition_paren_open); break;
            case T_RPAREN:      turnInto(for_statement_expression); continue;
            } break;

        case for_statement_expression:
            switch (kind) {
            case T_RPAREN:      leave(); turnInto(substatement); break;
            case T_LPAREN:      enter(condition_paren_open); break;
            } break;

        case case_start:
            switch (kind) {
            case T_COLON:       turnInto(case_cont); break;
            } break;

        case case_cont:
            if (kind != T_CASE && kind != T_DEFAULT && tryStatement())
                break;
            switch (kind) {
            case T_RBRACE:      leave(); continue;
            case T_DEFAULT:
            case T_CASE:        leave(); continue;
            } break;

        case substatement_open:
            if (tryStatement())
                break;
            switch (kind) {
            case T_RBRACE:      leave(true); break;
            } break;

        case condition_open:
            switch (kind) {
            case T_RPAREN:      turnInto(substatement); break;
            case T_LPAREN:      enter(condition_paren_open); break;
            } break;

        case block_open:
            if (tryStatement())
                break;
            switch(kind) {
            case T_RBRACE:      leave(true); break;
            } break;

        // paren nesting
        case condition_paren_open:
            switch (kind) {
            case T_RPAREN:      leave(); break;
            case T_LPAREN:      enter(condition_paren_open); break;
            } break;

        case qt_like_macro:
            switch (kind) {
            case T_LPAREN:      enter(arglist_open); break;
            case T_SEMICOLON:   leave(true); break;
            default:            leave(); continue;
            } break;

        case label:
            switch (kind) {
            case T_COLON:       leave(); break;
            default:            leave(); continue; // shouldn't happen
            } break;

        case multiline_comment_start:
        case multiline_comment_cont:
            if (kind != T_COMMENT && kind != T_DOXY_COMMENT) {
                leave();
                continue;
            } else if (m_tokenIndex == m_tokens.size() - 1
                    && lexerState == Lexer::State_Default) {
                leave();
            } else if (m_tokenIndex == 0 && m_currentToken.isComment()) {
                // to allow enter/leave to update the indentDepth
                turnInto(multiline_comment_cont);
            }
            break;

        case cpp_macro_start: {
            const int size = m_currentState.size();

            int previousMarker = -1;
            int previousPreviousMarker = -1;
            for (int i = size - 1; i >= 0; --i) {
                if (m_currentState.at(i).type == cpp_macro_conditional) {
                    if (previousMarker == -1)
                        previousMarker = i;
                    else {
                        previousPreviousMarker = i;
                        break;
                    }
                }
            }

            QStringRef tokenText = currentTokenText();
            if (tokenText == QLatin1String("ifdef")
                    || tokenText == QLatin1String("if")
                    || tokenText == QLatin1String("ifndef")) {
                enter(cpp_macro_conditional);
                // copy everything right of previousMarker, excluding cpp_macro_conditional
                for (int i = previousMarker + 1; i < size; ++i)
                    m_currentState += m_currentState.at(i);
            }
            if (previousMarker != -1) {
                if (tokenText == QLatin1String("endif")) {
                    QStack<State>::iterator begin = m_currentState.begin() + previousPreviousMarker + 1;
                    QStack<State>::iterator end = m_currentState.begin() + previousMarker + 1;
                    m_currentState.erase(begin, end);
                } else if (tokenText == QLatin1String("else")
                        || tokenText == QLatin1String("elif")) {
                    m_currentState.resize(previousMarker + 1);
                    for (int i = previousPreviousMarker + 1; i < previousMarker; ++i)
                        m_currentState += m_currentState.at(i);
                }
            }

            turnInto(cpp_macro);
            break;
        }

        case cpp_macro:
        case cpp_macro_cont:
            break;

        default:
            qWarning() << "Unhandled state" << m_currentState.top().type;
            break;

        } // end of state switch

        ++m_tokenIndex;
    }

    int topState = m_currentState.top().type;

    if (topState != multiline_comment_start
            && topState != multiline_comment_cont
            && (lexerState == Lexer::State_MultiLineComment
                || lexerState == Lexer::State_MultiLineDoxyComment)) {
        enter(multiline_comment_start);
    }

    if (topState == qt_like_macro)
        leave(true);

    if ((topState == cpp_macro_cont
            || topState == cpp_macro) && !endedJoined)
        leave();

    if (topState == cpp_macro && endedJoined)
        turnInto(cpp_macro_cont);

    saveCurrentState(block);
}

void CodeFormatter::indentFor(const QTextBlock &block, int *indent, int *padding)
{
//    qDebug() << "indenting for" << block.blockNumber() + 1;

    restoreCurrentState(block.previous());
    correctIndentation(block);
    *indent = m_indentDepth;
    *padding = m_paddingDepth;
}

void CodeFormatter::indentForNewLineAfter(const QTextBlock &block, int *indent, int *padding)
{
    restoreCurrentState(block);
    *indent = m_indentDepth;
    *padding = m_paddingDepth;

    int lexerState = loadLexerState(block);
    m_tokens.clear();
    m_currentLine.clear();
    adjustIndent(m_tokens, lexerState, indent, padding);
}

void CodeFormatter::updateStateUntil(const QTextBlock &endBlock)
{
    QStack<State> previousState = initialState();
    QTextBlock it = endBlock.document()->firstBlock();

    // find the first block that needs recalculation
    for (; it.isValid() && it != endBlock; it = it.next()) {
        BlockData blockData;
        if (!loadBlockData(it, &blockData))
            break;
        if (blockData.m_blockRevision != it.revision())
            break;
        if (previousState.isEmpty() || blockData.m_beginState.isEmpty()
                || previousState != blockData.m_beginState)
            break;
        if (loadLexerState(it) == -1)
            break;

        previousState = blockData.m_endState;
    }

    if (it == endBlock)
        return;

    // update everthing until endBlock
    for (; it.isValid() && it != endBlock; it = it.next()) {
        recalculateStateAfter(it);
    }

    // invalidate everything below by marking the state in endBlock as invalid
    if (it.isValid()) {
        BlockData invalidBlockData;
        saveBlockData(&it, invalidBlockData);
    }
}

void CodeFormatter::updateLineStateChange(const QTextBlock &block)
{
    if (!block.isValid())
        return;

    BlockData blockData;
    if (loadBlockData(block, &blockData) && blockData.m_blockRevision == block.revision())
        return;

    recalculateStateAfter(block);

    // invalidate everything below by marking the next block's state as invalid
    QTextBlock next = block.next();
    if (!next.isValid())
        return;

    saveBlockData(&next, BlockData());
}

CodeFormatter::State CodeFormatter::state(int belowTop) const
{
    if (belowTop < m_currentState.size())
        return m_currentState.at(m_currentState.size() - 1 - belowTop);
    else
        return State();
}

const QVector<CodeFormatter::State> &CodeFormatter::newStatesThisLine() const
{
    return m_newStates;
}

int CodeFormatter::tokenIndex() const
{
    return m_tokenIndex;
}

int CodeFormatter::tokenCount() const
{
    return m_tokens.size();
}

const CPlusPlus::Token &CodeFormatter::currentToken() const
{
    return m_currentToken;
}

void CodeFormatter::invalidateCache(QTextDocument *document)
{
    if (!document)
        return;

    BlockData invalidBlockData;
    QTextBlock it = document->firstBlock();
    for (; it.isValid(); it = it.next()) {
        saveBlockData(&it, invalidBlockData);
    }
}

void CodeFormatter::enter(int newState)
{
    int savedIndentDepth = m_indentDepth;
    int savedPaddingDepth = m_paddingDepth;
    onEnter(newState, &m_indentDepth, &savedIndentDepth, &m_paddingDepth, &savedPaddingDepth);
    State s(newState, savedIndentDepth, savedPaddingDepth);
    m_currentState.push(s);
    m_newStates.push(s);
}

void CodeFormatter::leave(bool statementDone)
{
    Q_ASSERT(m_currentState.size() > 1);
    if (m_currentState.top().type == topmost_intro)
        return;

    if (m_newStates.size() > 0)
        m_newStates.pop();

    // restore indent depth
    State poppedState = m_currentState.pop();
    m_indentDepth = poppedState.savedIndentDepth;
    m_paddingDepth = poppedState.savedPaddingDepth;

    int topState = m_currentState.top().type;

    // does it suffice to check if token is T_SEMICOLON or T_RBRACE?
    // maybe distinction between leave and turnInto?
    if (statementDone) {
        if (topState == substatement
                || topState == statement_with_condition
                || topState == for_statement
                || topState == switch_statement
                || topState == do_statement) {
            leave(true);
        } else if (topState == if_statement) {
            if (poppedState.type != maybe_else)
                enter(maybe_else);
            else
                leave(true);
        } else if (topState == else_clause) {
            // leave the else *and* the surrounding if, to prevent another else
            leave();
            leave(true);
        }
    }
}

void CodeFormatter::correctIndentation(const QTextBlock &block)
{
    const int lexerState = tokenizeBlock(block);
    Q_ASSERT(m_currentState.size() >= 1);

    adjustIndent(m_tokens, lexerState, &m_indentDepth, &m_paddingDepth);
}

bool CodeFormatter::tryExpression(bool alsoExpression)
{    
    int newState = -1;

    const int kind = m_currentToken.kind();
    switch (kind) {
    case T_LPAREN:          newState = arglist_open; break;
    case T_QUESTION:        newState = ternary_op; break;

    case T_LESS_LESS:
    case T_GREATER_GREATER:
        newState = stream_op;
        for (int i = m_currentState.size() - 1; i >= 0; --i) {
            const int type = m_currentState.at(i).type;
            if (type == arglist_open) { // likely a left-shift instead
                newState = -1;
                break;
            }
            if (type == topmost_intro
                    || type == substatement_open
                    || type == defun_open
                    || type == namespace_open
                    || type == class_open
                    || type == brace_list_open) {
                break;
            }
        }
        break;
    }

    if (newState != -1) {
        if (alsoExpression)
            enter(expression);
        enter(newState);
        return true;
    }

    return false;
}

bool CodeFormatter::tryDeclaration()
{
    const int kind = m_currentToken.kind();
    switch (kind) {
    case T_Q_ENUMS:
    case T_Q_PROPERTY:
    case T_Q_PRIVATE_PROPERTY:
    case T_Q_FLAGS:
    case T_Q_GADGET:
    case T_Q_OBJECT:
    case T_Q_INTERFACES:
    case T_Q_DECLARE_INTERFACE:
    case T_Q_PRIVATE_SLOT:
        enter(qt_like_macro);
        return true;
    case T_IDENTIFIER:
        if (m_tokenIndex == 0) {
            QString tokenText = currentTokenText().toString();
            if (tokenText.startsWith(QLatin1String("Q_"))
                    || tokenText.startsWith(QLatin1String("QT_"))
                    || tokenText.startsWith(QLatin1String("QML_"))
                    || tokenText.startsWith(QLatin1String("QDOC_"))) {
                enter(qt_like_macro);
                return true;
            }
            if (m_tokens.size() > 1 && m_tokens.at(1).kind() == T_COLON) {
                enter(label);
                return true;
            }
        }
        // fallthrough
    case T_CHAR:
    case T_WCHAR_T:
    case T_BOOL:
    case T_SHORT:
    case T_INT:
    case T_LONG:
    case T_SIGNED:
    case T_UNSIGNED:
    case T_FLOAT:
    case T_DOUBLE:
    case T_VOID:
    case T_AUTO:
    case T___TYPEOF__:
    case T___ATTRIBUTE__:
    case T_STATIC:
    case T_FRIEND:
    case T_CONST:
    case T_VOLATILE:
    case T_INLINE:
        enter(declaration_start);
        return true;

    case T_TEMPLATE:
        enter(template_start);
        return true;

    case T_NAMESPACE:
        enter(namespace_start);
        return true;

    case T_STRUCT:
    case T_UNION:
    case T_CLASS:
        enter(class_start);
        return true;

    case T_ENUM:
        enter(enum_start);
        return true;

    case T_USING:
        enter(using_start);
        return true;

    default:
        return false;
    }
}

bool CodeFormatter::tryStatement()
{
    const int kind = m_currentToken.kind();
    if (tryDeclaration())
        return true;
    switch (kind) {
    case T_RETURN:
        enter(return_statement);
        enter(expression);
        return true;
    case T_FOR:
        enter(for_statement);
        return true;
    case T_SWITCH:
        enter(switch_statement);
        return true;
    case T_IF:
        enter(if_statement);
        return true;
    case T_WHILE:
    case T_Q_FOREACH:
        enter(statement_with_condition);
        return true;
    case T_DO:
        enter(do_statement);
        enter(substatement);
        return true;
    case T_CASE:
    case T_DEFAULT:
        enter(case_start);
        return true;
    case T_LBRACE:
        enter(block_open);
        return true;
    default:
        return false;
    }
}

bool CodeFormatter::isBracelessState(int type) const
{
    return type == substatement
        || type == if_statement
        || type == else_clause
        || type == statement_with_condition
        || type == for_statement
        || type == do_statement;
}

const Token &CodeFormatter::tokenAt(int idx) const
{
    static const Token empty;
    if (idx < 0 || idx >= m_tokens.size())
        return empty;
    else
        return m_tokens.at(idx);
}

int CodeFormatter::column(int index) const
{
    int col = 0;
    if (index > m_currentLine.length())
        index = m_currentLine.length();

    const QChar tab = QLatin1Char('\t');

    for (int i = 0; i < index; i++) {
        if (m_currentLine[i] == tab) {
            col = ((col / m_tabSize) + 1) * m_tabSize;
        } else {
            col++;
        }
    }
    return col;
}

QStringRef CodeFormatter::currentTokenText() const
{
    return m_currentLine.midRef(m_currentToken.begin(), m_currentToken.length());
}

void CodeFormatter::turnInto(int newState)
{
    leave(false);
    enter(newState);
}

void CodeFormatter::saveCurrentState(const QTextBlock &block)
{
    if (!block.isValid())
        return;

    BlockData blockData;
    blockData.m_blockRevision = block.revision();
    blockData.m_beginState = m_beginState;
    blockData.m_endState = m_currentState;
    blockData.m_indentDepth = m_indentDepth;
    blockData.m_paddingDepth = m_paddingDepth;

    QTextBlock saveableBlock(block);
    saveBlockData(&saveableBlock, blockData);
}

void CodeFormatter::restoreCurrentState(const QTextBlock &block)
{
    if (block.isValid()) {             
        BlockData blockData;
        if (loadBlockData(block, &blockData)) {
            m_indentDepth = blockData.m_indentDepth;
            m_paddingDepth = blockData.m_paddingDepth;
            m_currentState = blockData.m_endState;
            m_beginState = m_currentState;
            return;
        }
    }

    m_currentState = initialState();
    m_beginState = m_currentState;
    m_indentDepth = 0;
    m_paddingDepth = 0;
}

QStack<CodeFormatter::State> CodeFormatter::initialState()
{
    static QStack<CodeFormatter::State> initialState;
    if (initialState.isEmpty())
        initialState.push(State(topmost_intro, 0, 0));
    return initialState;
}

int CodeFormatter::tokenizeBlock(const QTextBlock &block, bool *endedJoined)
{
    int startState = loadLexerState(block.previous());
    if (block.blockNumber() == 0)
        startState = 0;
    Q_ASSERT(startState != -1);

    SimpleLexer tokenize;
    tokenize.setQtMocRunEnabled(true);
    tokenize.setObjCEnabled(true);

    m_currentLine = block.text();
    // to determine whether a line was joined, Tokenizer needs a
    // newline character at the end
    m_currentLine.append(QLatin1Char('\n'));
    m_tokens = tokenize(m_currentLine, startState);

    if (endedJoined)
        *endedJoined = tokenize.endedJoined();

    const int lexerState = tokenize.state();
    BaseTextDocumentLayout::setLexerState(block, lexerState);
    return lexerState;
}

void CodeFormatter::dump() const
{
    QMetaEnum metaEnum = staticMetaObject.enumerator(staticMetaObject.indexOfEnumerator("StateType"));

    qDebug() << "Current token index" << m_tokenIndex;
    qDebug() << "Current state:";
    foreach (State s, m_currentState) {
        qDebug() << metaEnum.valueToKey(s.type) << s.savedIndentDepth << s.savedPaddingDepth;
    }
    qDebug() << "Current indent depth:" << m_indentDepth;
    qDebug() << "Current padding depth:" << m_paddingDepth;
}


namespace CppTools {
namespace Internal {
    class CppCodeFormatterData: public TextEditor::CodeFormatterData
    {
    public:
        CodeFormatter::BlockData m_data;
    };
}
}

QtStyleCodeFormatter::QtStyleCodeFormatter()
    : m_indentSize(4)
    , m_indentSubstatementBraces(false)
    , m_indentSubstatementStatements(true)
    , m_indentDeclarationBraces(false)
    , m_indentDeclarationMembers(true)
{
}

QtStyleCodeFormatter::QtStyleCodeFormatter(const TextEditor::TabSettings &tabSettings)
    : m_indentSize(tabSettings.m_indentSize)
    , m_indentSubstatementBraces(false)
    , m_indentSubstatementStatements(true)
    , m_indentDeclarationBraces(false)
    , m_indentDeclarationMembers(true)
{
    setTabSize(tabSettings.m_tabSize);
    if (tabSettings.m_indentBraces && tabSettings.m_doubleIndentBlocks) { // gnu style
        setIndentSubstatementBraces(true);
        setIndentSubstatementStatements(true);
        setIndentDeclarationBraces(false);
        setIndentDeclarationMembers(true);
    } else if (tabSettings.m_indentBraces) { // whitesmiths style
        setIndentSubstatementBraces(true);
        setIndentSubstatementStatements(false);
        setIndentDeclarationBraces(true);
        setIndentDeclarationMembers(false);
    } else { // default Qt style
        setIndentSubstatementBraces(false);
        setIndentSubstatementStatements(true);
        setIndentDeclarationBraces(false);
        setIndentDeclarationMembers(true);
    }
}

void QtStyleCodeFormatter::setIndentSize(int size)
{
    m_indentSize = size;
}

void QtStyleCodeFormatter::setIndentSubstatementBraces(bool onOff)
{
    m_indentSubstatementBraces = onOff;
}

void QtStyleCodeFormatter::setIndentSubstatementStatements(bool onOff)
{
    m_indentSubstatementStatements = onOff;
}

void QtStyleCodeFormatter::setIndentDeclarationBraces(bool onOff)
{
    m_indentDeclarationBraces = onOff;
}

void QtStyleCodeFormatter::setIndentDeclarationMembers(bool onOff)
{
    m_indentDeclarationMembers = onOff;
}

void QtStyleCodeFormatter::saveBlockData(QTextBlock *block, const BlockData &data) const
{
    TextBlockUserData *userData = BaseTextDocumentLayout::userData(*block);
    CppCodeFormatterData *cppData = static_cast<CppCodeFormatterData *>(userData->codeFormatterData());
    if (!cppData) {
        cppData = new CppCodeFormatterData;
        userData->setCodeFormatterData(cppData);
    }
    cppData->m_data = data;
}

bool QtStyleCodeFormatter::loadBlockData(const QTextBlock &block, BlockData *data) const
{
    TextBlockUserData *userData = BaseTextDocumentLayout::testUserData(block);
    if (!userData)
        return false;
    CppCodeFormatterData *cppData = static_cast<CppCodeFormatterData *>(userData->codeFormatterData());
    if (!cppData)
        return false;

    *data = cppData->m_data;
    return true;
}

void QtStyleCodeFormatter::saveLexerState(QTextBlock *block, int state) const
{
    BaseTextDocumentLayout::setLexerState(*block, state);
}

int QtStyleCodeFormatter::loadLexerState(const QTextBlock &block) const
{
    return BaseTextDocumentLayout::lexerState(block);
}

void QtStyleCodeFormatter::onEnter(int newState, int *indentDepth, int *savedIndentDepth, int *paddingDepth, int *savedPaddingDepth) const
{
    const State &parentState = state();
    const Token &tk = currentToken();
    const bool firstToken = (tokenIndex() == 0);
    const bool lastToken = (tokenIndex() == tokenCount() - 1);
    const int tokenPosition = column(tk.begin());
    const int nextTokenPosition = lastToken ? tokenPosition + tk.length()
                                            : column(tokenAt(tokenIndex() + 1).begin());
    const int spaceOrNextTokenPosition = lastToken ? tokenPosition + tk.length() + 1
                                                   : nextTokenPosition;

    if (shouldClearPaddingOnEnter(newState))
        *paddingDepth = 0;

    switch (newState) {
    case namespace_start:
        if (firstToken) {
            *savedIndentDepth = tokenPosition;
            *indentDepth = tokenPosition;
        }
        break;

    case enum_start:
    case class_start:
        if (firstToken) {
            *savedIndentDepth = tokenPosition;
            *indentDepth = tokenPosition;
        }
        *paddingDepth = 2*m_indentSize;
        break;

    case template_param:
        if (!lastToken)
            *paddingDepth = nextTokenPosition-*indentDepth;
        else {
            if (*paddingDepth == 0)
                *paddingDepth = 2*m_indentSize;
            else
                *paddingDepth += m_indentSize;
        }
        break;

    case statement_with_condition:
    case for_statement:
    case switch_statement:
    case if_statement:
    case return_statement:
        if (firstToken)
            *indentDepth = *savedIndentDepth = tokenPosition;
        *paddingDepth = 2*m_indentSize;
        break;

    case declaration_start:
        if (firstToken) {
            *savedIndentDepth = tokenPosition;
            *indentDepth = *savedIndentDepth;
        }
        // continuation indent in function bodies only, to not indent
        // after the return type in "void\nfoo() {}"
        for (int i = 0; state(i).type != topmost_intro; ++i) {
            if (state(i).type == defun_open) {
                *paddingDepth = 2*m_indentSize;
                break;
            }
        }
        break;

    case arglist_open:
    case condition_paren_open:
        if (!lastToken)
            *paddingDepth = nextTokenPosition-*indentDepth;
        else
            *paddingDepth += m_indentSize;
        break;

    case ternary_op:
        if (!lastToken)
            *paddingDepth = spaceOrNextTokenPosition-*indentDepth;
        else
            *paddingDepth += m_indentSize;
        break;

    case stream_op:
        *paddingDepth = spaceOrNextTokenPosition-*indentDepth;
        break;
    case stream_op_cont:
        if (firstToken)
            *savedPaddingDepth = *paddingDepth = spaceOrNextTokenPosition-*indentDepth;
        break;

    case member_init_open:
        // undo the continuation indent of the parent
        *savedPaddingDepth = 0;

        if (firstToken)
            *paddingDepth = tokenPosition-*indentDepth;
        else
            *paddingDepth = m_indentSize - 2; // they'll get another 2 from member_init
        break;

    case member_init:
        *paddingDepth += 2; // savedIndentDepth is the position of ':'
        break;

    case member_init_paren_open:
        *paddingDepth += m_indentSize;
        break;

    case case_cont:
        *indentDepth += m_indentSize;
        break;

    case class_open:
    case enum_open:
    case defun_open: {
        // undo the continuation indent of the parent
        *savedPaddingDepth = 0;

        bool followedByData = (!lastToken && !tokenAt(tokenIndex() + 1).isComment());
        if (followedByData)
            *savedPaddingDepth = tokenPosition-*indentDepth;

        *indentDepth += m_indentSize;

        if (followedByData) {
            *paddingDepth = nextTokenPosition-*indentDepth;
        }
        break;
    }

    case substatement_open:
        // undo parent continuation indent
        *savedPaddingDepth = 0;

        if (firstToken) {
            *savedIndentDepth = tokenPosition;
            *indentDepth = *savedIndentDepth;
        } else if (m_indentSubstatementBraces && !m_indentSubstatementStatements) {
            // ### The preceding check is quite arbitrary.
            // It actually needs another flag to determine whether the closing curly
            // should be indented or not
            *indentDepth = *savedIndentDepth += m_indentSize;
        }

        if (m_indentSubstatementStatements) {
            if (parentState.type != switch_statement)
                *indentDepth += m_indentSize;
        }
        break;

    case brace_list_open:
        if (!lastToken) {
            if (parentState.type == initializer)
                *savedPaddingDepth = tokenPosition-*indentDepth;
            *paddingDepth = nextTokenPosition-*indentDepth;
        } else {
            // avoid existing continuation indents
            if (parentState.type == initializer)
                *savedPaddingDepth = state(1).savedPaddingDepth;
            *paddingDepth = *savedPaddingDepth + m_indentSize;
        }
        break;

    case block_open:
        // case_cont already adds some indent, revert it for a block
        if (parentState.type == case_cont && !m_indentSubstatementBraces)
            *indentDepth = *savedIndentDepth = parentState.savedIndentDepth;

        if (m_indentSubstatementStatements)
            *indentDepth += m_indentSize;
        break;

    case condition_open:
        // undo the continuation indent of the parent
        *paddingDepth = parentState.savedPaddingDepth;
        *savedPaddingDepth = *paddingDepth;

        // fixed extra indent when continuing 'if (', but not for 'else if ('
        if (nextTokenPosition-*indentDepth <= m_indentSize)
            *paddingDepth = 2*m_indentSize;
        else
            *paddingDepth = nextTokenPosition-*indentDepth;
        break;

    case substatement:
        // undo the continuation indent of the parent
        *savedPaddingDepth = 0;

        break;

    case maybe_else: {
        // set indent to outermost braceless savedIndent
        int outermostBraceless = 0;
        while (isBracelessState(state(outermostBraceless).type))
            ++outermostBraceless;
        *indentDepth = state(outermostBraceless - 1).savedIndentDepth;
        // this is where the else should go, if one appears - aligned to if_statement
        *savedIndentDepth = state().savedIndentDepth;
    }   break;

    case for_statement_paren_open:
        *paddingDepth = nextTokenPosition - *indentDepth;
        break;

    case multiline_comment_start:
        *indentDepth = tokenPosition + 2; // nextTokenPosition won't work
        break;

    case multiline_comment_cont:
        *indentDepth = tokenPosition;
        break;

    case cpp_macro:
    case cpp_macro_cont:
        *indentDepth = m_indentSize;
        break;
    }

    // ensure padding and indent are >= 0
    *indentDepth = qMax(0, *indentDepth);
    *savedIndentDepth = qMax(0, *savedIndentDepth);
    *paddingDepth = qMax(0, *paddingDepth);
    *savedPaddingDepth = qMax(0, *savedPaddingDepth);
}

void QtStyleCodeFormatter::adjustIndent(const QList<CPlusPlus::Token> &tokens, int lexerState, int *indentDepth, int *paddingDepth) const
{
    State topState = state();
    State previousState = state(1);

    const bool topWasMaybeElse = (topState.type == maybe_else);
    if (topWasMaybeElse) {
        int outermostBraceless = 1;
        while (state(outermostBraceless).type != invalid && isBracelessState(state(outermostBraceless).type))
            ++outermostBraceless;

        topState = state(outermostBraceless);
        previousState = state(outermostBraceless + 1);
    }


    // adjusting the indentDepth here instead of in enter() gives 'else if' the correct indentation
    // ### could be moved?
    if (topState.type == substatement)
        *indentDepth += m_indentSize;

    // keep user-adjusted indent in multiline comments
    if (topState.type == multiline_comment_start
            || topState.type == multiline_comment_cont) {
        if (!tokens.isEmpty()) {
            *indentDepth = tokens.at(0).begin();
            return;
        }
    }

    const int kind = tokenAt(0).kind();
    switch (kind) {
    case T_POUND: *indentDepth = 0; break;
    case T_COLON:
        // ### ok for constructor initializer lists - what about ? and bitfields?
        if (topState.type == expression && previousState.type == declaration_start) {
            *paddingDepth = m_indentSize;
        } else if (topState.type == ternary_op) {
            if (*paddingDepth >= 2)
                *paddingDepth -= 2;
            else
                *paddingDepth = 0;
        }
        break;
    case T_LBRACE: {
        if (topState.type == case_cont) {
            *indentDepth = topState.savedIndentDepth;
            if (m_indentSubstatementBraces)
                *indentDepth += m_indentSize;
            *paddingDepth = 0;
        // function definition - argument list is expression state
        } else if (topState.type == expression && previousState.type == declaration_start) {
            *indentDepth = previousState.savedIndentDepth;
            if (m_indentDeclarationBraces)
                *indentDepth += m_indentSize;
            *paddingDepth = 0;
        } else if (topState.type == class_start) {
            *indentDepth = topState.savedIndentDepth;
            if (m_indentDeclarationBraces)
                *indentDepth += m_indentSize;
            *paddingDepth = 0;
        } else if (topState.type == substatement) {
            *indentDepth = topState.savedIndentDepth;
            if (m_indentSubstatementBraces)
                *indentDepth += m_indentSize;
            *paddingDepth = 0;
        } else if (topState.type != defun_open
                && topState.type != block_open
                && topState.type != substatement_open
                && topState.type != brace_list_open
                && !topWasMaybeElse) {
            *indentDepth = topState.savedIndentDepth;
            *paddingDepth = 0;
        }

        break;
    }
    case T_RBRACE: {
        if (topState.type == block_open && previousState.type == case_cont) {
            *indentDepth = topState.savedIndentDepth;
            *paddingDepth = topState.savedPaddingDepth;
            break;
        }
        for (int i = 0; state(i).type != topmost_intro; ++i) {
            const int type = state(i).type;
            if (type == class_open
                    || type == namespace_open
                    || type == enum_open
                    || type == defun_open) {
                *indentDepth = state(i).savedIndentDepth;
                if (m_indentDeclarationBraces)
                    *indentDepth += m_indentSize;
                *paddingDepth = state(i).savedPaddingDepth;
                break;
            } else if (type == substatement_open
                       || type == brace_list_open
                       || type == block_open) {
                *indentDepth = state(i).savedIndentDepth;
                *paddingDepth = state(i).savedPaddingDepth;
                break;
            }
        }
        break;
    }
    // Disabled for now, see QTCREATORBUG-1825. It makes extending if conditions
    // awkward: inserting a newline just before the ) shouldn't align to 'if'.
    //case T_RPAREN:
    //    if (topState.type == condition_open) {
    //        *indentDepth = previousState.savedIndentDepth;
    //    }
    //    break;
    case T_DEFAULT:
    case T_CASE: {
        int lastSubstatementIndent = 0;
        for (int i = 0; state(i).type != topmost_intro; ++i) {
            const int type = state(i).type;
            if (type == substatement_open) {
                lastSubstatementIndent = state(i).savedIndentDepth;
            } else if (type == switch_statement) {
                *indentDepth = lastSubstatementIndent;
                break;
            } else if (type == case_cont) {
                *indentDepth = state(i).savedIndentDepth;
                break;
            } else if (type == topmost_intro) {
                break;
            }
        }
        break;
    }
    case T_PUBLIC:
    case T_PRIVATE:
    case T_PROTECTED:
    case T_Q_SIGNALS:
        if (topState.type == class_open) {
            if (tokenAt(1).is(T_COLON) || tokenAt(2).is(T_COLON))
                *indentDepth = topState.savedIndentDepth;
        }
        break;
    case T_ELSE:
        if (topWasMaybeElse)
            *indentDepth = state().savedIndentDepth; // topSavedIndent is actually the previous
        break;
    case T_LESS_LESS:
    case T_GREATER_GREATER:
        if (topState.type == stream_op || topState.type == stream_op_cont) {
            if (*paddingDepth >= 3)
                *paddingDepth -= 3; // to align << with <<
            else
                *paddingDepth = 0;
        }
        break;
    case T_COMMENT:
    case T_DOXY_COMMENT:
    case T_CPP_COMMENT:
    case T_CPP_DOXY_COMMENT:
        // unindent the last line of a comment
        if ((topState.type == multiline_comment_cont
             || topState.type == multiline_comment_start)
                && (kind == T_COMMENT || kind == T_DOXY_COMMENT)
                && (lexerState == Lexer::State_Default
                    || tokens.size() != 1)) {
            if (*indentDepth >= m_indentSize)
                *indentDepth -= m_indentSize;
            else
                *indentDepth = 0;
        }
        break;
    case T_IDENTIFIER:
        if (topState.type == substatement
                || topState.type == substatement_open
                || topState.type == case_cont
                || topState.type == block_open
                || topState.type == defun_open) {
            if (tokens.size() > 1 && tokens.at(1).kind() == T_COLON) // label?
                *indentDepth = 0;
        }
        break;
    }
}

bool QtStyleCodeFormatter::shouldClearPaddingOnEnter(int state)
{
    switch (state) {
    case defun_open:
    case class_start:
    case class_open:
    case enum_start:
    case enum_open:
    case namespace_start:
    case namespace_open:
    case template_start:
    case if_statement:
    case else_clause:
    case for_statement:
    case switch_statement:
    case statement_with_condition:
    case do_statement:
    case return_statement:
    case block_open:
    case substatement_open:
    case substatement:
        return true;
    }
    return false;
}