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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <cassert>
#include <string>
#include <iostream>
#include <fstream>
#include <set>
#include <unordered_set>
#include <clang/AST/CXXInheritance.h>
#include "compat.hxx"
#include "plugin.hxx"
/**
look for unnecessary parentheses
*/
namespace {
// Like clang::Stmt::IgnoreImplicit (lib/AST/Stmt.cpp), but also ignoring CXXConstructExpr and
// looking through implicit UserDefinedConversion's member function call:
Expr const * ignoreAllImplicit(Expr const * expr) {
while (true)
{
auto oldExpr = expr;
if (auto const e = dyn_cast<ExprWithCleanups>(expr)) {
expr = e->getSubExpr();
}
else if (auto const e = dyn_cast<CXXConstructExpr>(expr)) {
if (e->getNumArgs() == 1) {
expr = e->getArg(0);
}
}
else if (auto const e = dyn_cast<MaterializeTemporaryExpr>(expr)) {
expr = e->GetTemporaryExpr();
}
else if (auto const e = dyn_cast<CXXBindTemporaryExpr>(expr)) {
expr = e->getSubExpr();
}
else if (auto const e = dyn_cast<ImplicitCastExpr>(expr)) {
expr = e->getSubExpr();
if (e->getCastKind() == CK_UserDefinedConversion) {
auto const ce = cast<CXXMemberCallExpr>(expr);
assert(ce->getNumArgs() == 0);
expr = ce->getImplicitObjectArgument();
}
}
if (expr == oldExpr)
return expr;
}
return expr;
}
class UnnecessaryParen:
public RecursiveASTVisitor<UnnecessaryParen>, public loplugin::RewritePlugin
{
public:
explicit UnnecessaryParen(loplugin::InstantiationData const & data):
RewritePlugin(data) {}
virtual void run() override
{
StringRef fn(handler.getMainFileName());
// fixing this, makes the source in the .y files look horrible
if (loplugin::isSamePathname(fn, WORKDIR "/YaccTarget/unoidl/source/sourceprovider-parser.cxx"))
return;
if (loplugin::isSamePathname(fn, WORKDIR "/YaccTarget/idlc/source/parser.cxx"))
return;
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
bool VisitParenExpr(const ParenExpr *);
bool VisitIfStmt(const IfStmt *);
bool VisitDoStmt(const DoStmt *);
bool VisitWhileStmt(const WhileStmt *);
bool VisitForStmt(ForStmt const * stmt);
bool VisitSwitchStmt(const SwitchStmt *);
bool VisitCaseStmt(const CaseStmt *);
bool VisitReturnStmt(const ReturnStmt* );
bool VisitCallExpr(const CallExpr *);
bool VisitVarDecl(const VarDecl *);
bool VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *);
bool VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr const *);
bool VisitConditionalOperator(ConditionalOperator const * expr);
bool VisitBinaryConditionalOperator(BinaryConditionalOperator const * expr);
bool VisitMemberExpr(const MemberExpr *f);
bool VisitCXXDeleteExpr(const CXXDeleteExpr *);
private:
void VisitSomeStmt(Stmt const * stmt, const Expr* cond, StringRef stmtName);
void handleUnreachableCodeConditionParens(Expr const * expr);
// Hack for libxml2's BAD_CAST object-like macro (expanding to "(xmlChar *)"), which is
// typically used as if it were a function-like macro, e.g., as "BAD_CAST(pName)" in
// SwNode::dumpAsXml (sw/source/core/docnode/node.cxx):
bool isPrecededBy_BAD_CAST(Expr const * expr);
bool badCombination(SourceLocation loc, int prevOffset, int nextOffset);
bool removeParens(ParenExpr const * expr);
std::unordered_set<ParenExpr const *> handled_;
};
bool UnnecessaryParen::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr const * expr)
{
if (expr->getKind() == UETT_SizeOf && !expr->isArgumentType()) {
if (auto const e = dyn_cast<ParenExpr>(ignoreAllImplicit(expr->getArgumentExpr()))) {
handled_.insert(e);
}
}
return true;
}
bool UnnecessaryParen::VisitConditionalOperator(ConditionalOperator const * expr) {
handleUnreachableCodeConditionParens(expr->getCond());
return true;
}
bool UnnecessaryParen::VisitBinaryConditionalOperator(BinaryConditionalOperator const * expr) {
handleUnreachableCodeConditionParens(expr->getCond());
return true;
}
bool UnnecessaryParen::VisitParenExpr(const ParenExpr* parenExpr)
{
if (ignoreLocation(parenExpr))
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
if (handled_.find(parenExpr) != handled_.end())
return true;
auto subExpr = ignoreAllImplicit(parenExpr->getSubExpr());
if (auto subParenExpr = dyn_cast<ParenExpr>(subExpr))
{
if (compat::getBeginLoc(subParenExpr).isMacroID())
return true;
report(
DiagnosticsEngine::Warning, "parentheses around parentheses",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(subParenExpr);
}
// Somewhat redundantly add parenExpr to handled_, so that issues within InitListExpr don't get
// reported twice (without having to change TraverseInitListExpr to only either traverse the
// syntactic or semantic form, as other plugins do):
if (isa<DeclRefExpr>(subExpr)) {
if (!isPrecededBy_BAD_CAST(parenExpr)) {
report(
DiagnosticsEngine::Warning, "unnecessary parentheses around identifier",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
}
} else if (isa<IntegerLiteral>(subExpr) || isa<CharacterLiteral>(subExpr)
|| isa<FloatingLiteral>(subExpr) || isa<ImaginaryLiteral>(subExpr)
|| isa<CXXBoolLiteralExpr>(subExpr) || isa<CXXNullPtrLiteralExpr>(subExpr)
|| isa<ObjCBoolLiteralExpr>(subExpr))
{
auto const loc = compat::getBeginLoc(subExpr);
if (loc.isMacroID() && compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(loc))
{
// just in case the macro could also expand to something that /would/ require
// parentheses here
return true;
}
report(
DiagnosticsEngine::Warning, "unnecessary parentheses around literal",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
} else if (auto const e = dyn_cast<clang::StringLiteral>(subExpr)) {
if (e->getNumConcatenated() == 1 && !isPrecededBy_BAD_CAST(parenExpr)) {
report(
DiagnosticsEngine::Warning,
"unnecessary parentheses around single-token string literal",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
}
} else if (auto const e = dyn_cast<UnaryOperator>(subExpr)) {
auto const op = e->getOpcode();
if (op == UO_Plus || op == UO_Minus) {
auto const e2 = e->getSubExpr();
if (isa<IntegerLiteral>(e2) || isa<FloatingLiteral>(e2) || isa<ImaginaryLiteral>(e2)) {
report(
DiagnosticsEngine::Warning,
"unnecessary parentheses around signed numeric literal",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
}
}
} else if (isa<CXXNamedCastExpr>(subExpr)) {
if (!removeParens(parenExpr)) {
report(
DiagnosticsEngine::Warning, "unnecessary parentheses around cast",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
}
handled_.insert(parenExpr);
}
return true;
}
bool UnnecessaryParen::VisitIfStmt(const IfStmt* ifStmt)
{
handleUnreachableCodeConditionParens(ifStmt->getCond());
VisitSomeStmt(ifStmt, ifStmt->getCond(), "if");
return true;
}
bool UnnecessaryParen::VisitDoStmt(const DoStmt* doStmt)
{
VisitSomeStmt(doStmt, doStmt->getCond(), "do");
return true;
}
bool UnnecessaryParen::VisitWhileStmt(const WhileStmt* whileStmt)
{
handleUnreachableCodeConditionParens(whileStmt->getCond());
VisitSomeStmt(whileStmt, whileStmt->getCond(), "while");
return true;
}
bool UnnecessaryParen::VisitForStmt(ForStmt const * stmt) {
if (auto const cond = stmt->getCond()) {
handleUnreachableCodeConditionParens(cond);
}
return true;
}
bool UnnecessaryParen::VisitSwitchStmt(const SwitchStmt* switchStmt)
{
VisitSomeStmt(switchStmt, switchStmt->getCond(), "switch");
return true;
}
bool UnnecessaryParen::VisitCaseStmt(const CaseStmt* caseStmt)
{
VisitSomeStmt(caseStmt, caseStmt->getLHS(), "case");
return true;
}
bool UnnecessaryParen::VisitReturnStmt(const ReturnStmt* returnStmt)
{
if (ignoreLocation(returnStmt))
return true;
if (!returnStmt->getRetValue())
return true;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(returnStmt->getRetValue()));
if (!parenExpr)
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
// assignments need extra parentheses or they generate a compiler warning
auto binaryOp = dyn_cast<BinaryOperator>(parenExpr->getSubExpr());
if (binaryOp && binaryOp->getOpcode() == BO_Assign)
return true;
// only non-operator-calls for now
auto subExpr = ignoreAllImplicit(parenExpr->getSubExpr());
if (isa<CallExpr>(subExpr) && !isa<CXXOperatorCallExpr>(subExpr))
{
report(
DiagnosticsEngine::Warning, "parentheses immediately inside return statement",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
}
return true;
}
void UnnecessaryParen::VisitSomeStmt(const Stmt * stmt, const Expr* cond, StringRef stmtName)
{
if (ignoreLocation(stmt))
return;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(cond));
if (parenExpr) {
if (handled_.find(parenExpr) != handled_.end()) {
return;
}
if (compat::getBeginLoc(parenExpr).isMacroID())
return;
// assignments need extra parentheses or they generate a compiler warning
auto binaryOp = dyn_cast<BinaryOperator>(parenExpr->getSubExpr());
if (binaryOp && binaryOp->getOpcode() == BO_Assign)
return;
if (auto const opCall = dyn_cast<CXXOperatorCallExpr>(parenExpr->getSubExpr())) {
if (opCall->getOperator() == OO_Equal) {
return;
}
}
report(
DiagnosticsEngine::Warning, "parentheses immediately inside %0 statement",
compat::getBeginLoc(parenExpr))
<< stmtName
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
}
}
bool UnnecessaryParen::VisitCallExpr(const CallExpr* callExpr)
{
if (ignoreLocation(callExpr))
return true;
if (callExpr->getNumArgs() != 1 || isa<CXXOperatorCallExpr>(callExpr))
return true;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(callExpr->getArg(0)));
if (!parenExpr)
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
// assignments need extra parentheses or they generate a compiler warning
auto binaryOp = dyn_cast<BinaryOperator>(parenExpr->getSubExpr());
if (binaryOp && binaryOp->getOpcode() == BO_Assign)
return true;
report(
DiagnosticsEngine::Warning, "parentheses immediately inside single-arg call",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
return true;
}
bool UnnecessaryParen::VisitCXXDeleteExpr(const CXXDeleteExpr* deleteExpr)
{
if (ignoreLocation(deleteExpr))
return true;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(deleteExpr->getArgument()));
if (!parenExpr)
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
// assignments need extra parentheses or they generate a compiler warning
auto binaryOp = dyn_cast<BinaryOperator>(parenExpr->getSubExpr());
if (binaryOp && binaryOp->getOpcode() == BO_Assign)
return true;
report(
DiagnosticsEngine::Warning, "parentheses immediately inside delete expr",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
return true;
}
bool UnnecessaryParen::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr* callExpr)
{
if (ignoreLocation(callExpr))
return true;
if (callExpr->getNumArgs() != 2)
return true;
// Same logic as CXXOperatorCallExpr::isAssignmentOp(), which our supported clang
// doesn't have yet.
auto Opc = callExpr->getOperator();
if (Opc != OO_Equal && Opc != OO_StarEqual &&
Opc != OO_SlashEqual && Opc != OO_PercentEqual &&
Opc != OO_PlusEqual && Opc != OO_MinusEqual &&
Opc != OO_LessLessEqual && Opc != OO_GreaterGreaterEqual &&
Opc != OO_AmpEqual && Opc != OO_CaretEqual &&
Opc != OO_PipeEqual)
return true;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(callExpr->getArg(1)));
if (!parenExpr)
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
// Sometimes parentheses make the RHS of an assignment easier to read by
// visually disambiguating the = from a call to ==
auto sub = parenExpr->getSubExpr();
if (isa<BinaryOperator>(sub)
|| isa<CXXOperatorCallExpr>(sub)
|| isa<ConditionalOperator>(sub))
return true;
report(
DiagnosticsEngine::Warning, "parentheses immediately inside assignment",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
return true;
}
bool UnnecessaryParen::VisitVarDecl(const VarDecl* varDecl)
{
if (ignoreLocation(varDecl))
return true;
if (!varDecl->getInit())
return true;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(varDecl->getInit()));
if (!parenExpr)
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
auto sub = parenExpr->getSubExpr();
if (isa<BinaryOperator>(sub)
|| isa<CXXOperatorCallExpr>(sub)
|| isa<ConditionalOperator>(sub)
// these two are for "parentheses were disambiguated as a function declaration [-Werror,-Wvexing-parse]"
|| isa<CXXBindTemporaryExpr>(sub)
|| isa<CXXFunctionalCastExpr>(sub))
return true;
report(
DiagnosticsEngine::Warning, "parentheses immediately inside vardecl statement",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
return true;
}
bool UnnecessaryParen::VisitMemberExpr(const MemberExpr* memberExpr)
{
if (ignoreLocation(memberExpr))
return true;
auto parenExpr = dyn_cast<ParenExpr>(ignoreAllImplicit(memberExpr->getBase()));
if (!parenExpr)
return true;
if (handled_.find(parenExpr) != handled_.end())
return true;
if (compat::getBeginLoc(parenExpr).isMacroID())
return true;
auto sub = parenExpr->getSubExpr();
if (isa<CallExpr>(sub)) {
if (isa<CXXOperatorCallExpr>(sub))
return true;
} else if (isa<CXXConstructExpr>(sub)) {
// warn
} else if (isa<MemberExpr>(sub)) {
// warn
} else if (isa<DeclRefExpr>(sub)) {
// warn
} else
return true;
report(
DiagnosticsEngine::Warning, "unnecessary parentheses around member expr",
compat::getBeginLoc(parenExpr))
<< parenExpr->getSourceRange();
handled_.insert(parenExpr);
return true;
}
// Conservatively assume any parenthesised integer or Boolean (incl. Objective-C ones) literal in
// certain condition expressions (i.e., those for which handleUnreachableCodeConditionParens is
// called) to be parenthesised to silence Clang -Wunreachable-code, if that is either the whole
// condition expression or appears as a certain sub-expression (looking at what isConfigurationValue
// in Clang's lib/Analysis/ReachableCode.cpp looks for, descending into certain unary and binary
// operators):
void UnnecessaryParen::handleUnreachableCodeConditionParens(Expr const * expr) {
// Cf. :
auto const e = ignoreAllImplicit(expr);
if (auto const e1 = dyn_cast<ParenExpr>(e)) {
auto const sub = e1->getSubExpr();
if (isa<IntegerLiteral>(sub) || isa<CXXBoolLiteralExpr>(sub)
|| isa<ObjCBoolLiteralExpr>(sub))
{
handled_.insert(e1);
}
} else if (auto const e1 = dyn_cast<UnaryOperator>(e)) {
if (e1->getOpcode() == UO_LNot) {
handleUnreachableCodeConditionParens(e1->getSubExpr());
}
} else if (auto const e1 = dyn_cast<BinaryOperator>(e)) {
if (e1->isLogicalOp() || e1->isComparisonOp()) {
handleUnreachableCodeConditionParens(e1->getLHS());
handleUnreachableCodeConditionParens(e1->getRHS());
}
}
}
bool UnnecessaryParen::isPrecededBy_BAD_CAST(Expr const * expr) {
if (compat::getBeginLoc(expr).isMacroID()) {
return false;
}
SourceManager& SM = compiler.getSourceManager();
const char *p1 = SM.getCharacterData( compat::getBeginLoc(expr).getLocWithOffset(-10) );
const char *p2 = SM.getCharacterData( compat::getBeginLoc(expr) );
return std::string(p1, p2 - p1).find("BAD_CAST") != std::string::npos;
}
namespace {
bool badCombinationChar(char c) {
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_'
|| c == '+' || c == '-' || c == '\'' || c == '"';
}
}
bool UnnecessaryParen::badCombination(SourceLocation loc, int prevOffset, int nextOffset) {
//TODO: check for start/end of file; take backslash-newline line concatenation into account
auto const c1
= compiler.getSourceManager().getCharacterData(loc.getLocWithOffset(prevOffset))[0];
auto const c2
= compiler.getSourceManager().getCharacterData(loc.getLocWithOffset(nextOffset))[0];
// An approximation of avoiding whatever combinations that would cause two adjacent tokens to be
// lexed differently, using, for now, letters (TODO: non-ASCII ones) and digits and '_'; '+' and
// '-' (to avoid ++, etc.); '\'' and '"' (to avoid u'x' or "foo"bar, etc.):
return badCombinationChar(c1) && badCombinationChar(c2);
}
bool UnnecessaryParen::removeParens(ParenExpr const * expr) {
if (rewriter == nullptr) {
return false;
}
auto const firstBegin = compat::getBeginLoc(expr);
auto secondBegin = compat::getEndLoc(expr);
if (firstBegin.isMacroID() || secondBegin.isMacroID()) {
return false;
}
unsigned firstLen = Lexer::MeasureTokenLength(
firstBegin, compiler.getSourceManager(), compiler.getLangOpts());
for (auto l = firstBegin.getLocWithOffset(std::max<unsigned>(firstLen, 1));;
l = l.getLocWithOffset(1))
{
unsigned n = Lexer::MeasureTokenLength(
l, compiler.getSourceManager(), compiler.getLangOpts());
if (n != 0) {
break;
}
++firstLen;
}
unsigned secondLen = Lexer::MeasureTokenLength(
secondBegin, compiler.getSourceManager(), compiler.getLangOpts());
for (;;) {
auto l = secondBegin.getLocWithOffset(-1);
auto const c = compiler.getSourceManager().getCharacterData(l)[0];
if (c == '\n') {
if (compiler.getSourceManager().getCharacterData(l.getLocWithOffset(-1))[0] == '\\') {
break;
}
} else if (!(c == ' ' || c == '\t' || c == '\v' || c == '\f')) {
break;
}
secondBegin = l;
++secondLen;
}
if (!replaceText(firstBegin, firstLen, badCombination(firstBegin, -1, firstLen) ? " " : "")) {
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal,
"TODO: cannot rewrite opening parenthesis, needs investigation",
firstBegin);
report(
DiagnosticsEngine::Note, "when removing these parentheses", expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
if (!replaceText(secondBegin, secondLen, badCombination(secondBegin, -1, secondLen) ? " " : ""))
{
//TODO: roll back first change
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal,
"TODO: cannot rewrite closing parenthesis, needs investigation",
secondBegin);
report(
DiagnosticsEngine::Note, "when removing these parentheses", expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
return true;
}
loplugin::Plugin::Registration< UnnecessaryParen > X("unnecessaryparen", true);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|