clang  10.0.0svn
ParseInit.cpp
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1 //===--- ParseInit.cpp - Initializer Parsing ------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements initializer parsing as specified by C99 6.7.8.
10 //
11 //===----------------------------------------------------------------------===//
12 
14 #include "clang/Parse/Parser.h"
16 #include "clang/Sema/Designator.h"
17 #include "clang/Sema/Scope.h"
18 #include "llvm/ADT/SmallString.h"
19 using namespace clang;
20 
21 
22 /// MayBeDesignationStart - Return true if the current token might be the start
23 /// of a designator. If we can tell it is impossible that it is a designator,
24 /// return false.
25 bool Parser::MayBeDesignationStart() {
26  switch (Tok.getKind()) {
27  default:
28  return false;
29 
30  case tok::period: // designator: '.' identifier
31  return true;
32 
33  case tok::l_square: { // designator: array-designator
34  if (!PP.getLangOpts().CPlusPlus11)
35  return true;
36 
37  // C++11 lambda expressions and C99 designators can be ambiguous all the
38  // way through the closing ']' and to the next character. Handle the easy
39  // cases here, and fall back to tentative parsing if those fail.
40  switch (PP.LookAhead(0).getKind()) {
41  case tok::equal:
42  case tok::ellipsis:
43  case tok::r_square:
44  // Definitely starts a lambda expression.
45  return false;
46 
47  case tok::amp:
48  case tok::kw_this:
49  case tok::star:
50  case tok::identifier:
51  // We have to do additional analysis, because these could be the
52  // start of a constant expression or a lambda capture list.
53  break;
54 
55  default:
56  // Anything not mentioned above cannot occur following a '[' in a
57  // lambda expression.
58  return true;
59  }
60 
61  // Handle the complicated case below.
62  break;
63  }
64  case tok::identifier: // designation: identifier ':'
65  return PP.LookAhead(0).is(tok::colon);
66  }
67 
68  // Parse up to (at most) the token after the closing ']' to determine
69  // whether this is a C99 designator or a lambda.
70  RevertingTentativeParsingAction Tentative(*this);
71 
72  LambdaIntroducer Intro;
73  LambdaIntroducerTentativeParse ParseResult;
74  if (ParseLambdaIntroducer(Intro, &ParseResult)) {
75  // Hit and diagnosed an error in a lambda.
76  // FIXME: Tell the caller this happened so they can recover.
77  return true;
78  }
79 
80  switch (ParseResult) {
81  case LambdaIntroducerTentativeParse::Success:
82  case LambdaIntroducerTentativeParse::Incomplete:
83  // Might be a lambda-expression. Keep looking.
84  // FIXME: If our tentative parse was not incomplete, parse the lambda from
85  // here rather than throwing away then reparsing the LambdaIntroducer.
86  break;
87 
88  case LambdaIntroducerTentativeParse::MessageSend:
89  case LambdaIntroducerTentativeParse::Invalid:
90  // Can't be a lambda-expression. Treat it as a designator.
91  // FIXME: Should we disambiguate against a message-send?
92  return true;
93  }
94 
95  // Once we hit the closing square bracket, we look at the next
96  // token. If it's an '=', this is a designator. Otherwise, it's a
97  // lambda expression. This decision favors lambdas over the older
98  // GNU designator syntax, which allows one to omit the '=', but is
99  // consistent with GCC.
100  return Tok.is(tok::equal);
101 }
102 
104  Designation &Desig) {
105  // If we have exactly one array designator, this used the GNU
106  // 'designation: array-designator' extension, otherwise there should be no
107  // designators at all!
108  if (Desig.getNumDesignators() == 1 &&
109  (Desig.getDesignator(0).isArrayDesignator() ||
111  P.Diag(Loc, diag::ext_gnu_missing_equal_designator);
112  else if (Desig.getNumDesignators() > 0)
113  P.Diag(Loc, diag::err_expected_equal_designator);
114 }
115 
116 /// ParseInitializerWithPotentialDesignator - Parse the 'initializer' production
117 /// checking to see if the token stream starts with a designator.
118 ///
119 /// C99:
120 ///
121 /// designation:
122 /// designator-list '='
123 /// [GNU] array-designator
124 /// [GNU] identifier ':'
125 ///
126 /// designator-list:
127 /// designator
128 /// designator-list designator
129 ///
130 /// designator:
131 /// array-designator
132 /// '.' identifier
133 ///
134 /// array-designator:
135 /// '[' constant-expression ']'
136 /// [GNU] '[' constant-expression '...' constant-expression ']'
137 ///
138 /// C++20:
139 ///
140 /// designated-initializer-list:
141 /// designated-initializer-clause
142 /// designated-initializer-list ',' designated-initializer-clause
143 ///
144 /// designated-initializer-clause:
145 /// designator brace-or-equal-initializer
146 ///
147 /// designator:
148 /// '.' identifier
149 ///
150 /// We allow the C99 syntax extensions in C++20, but do not allow the C++20
151 /// extension (a braced-init-list after the designator with no '=') in C99.
152 ///
153 /// NOTE: [OBC] allows '[ objc-receiver objc-message-args ]' as an
154 /// initializer (because it is an expression). We need to consider this case
155 /// when parsing array designators.
156 ///
157 ExprResult Parser::ParseInitializerWithPotentialDesignator() {
158 
159  // If this is the old-style GNU extension:
160  // designation ::= identifier ':'
161  // Handle it as a field designator. Otherwise, this must be the start of a
162  // normal expression.
163  if (Tok.is(tok::identifier)) {
164  const IdentifierInfo *FieldName = Tok.getIdentifierInfo();
165 
166  SmallString<256> NewSyntax;
167  llvm::raw_svector_ostream(NewSyntax) << '.' << FieldName->getName()
168  << " = ";
169 
170  SourceLocation NameLoc = ConsumeToken(); // Eat the identifier.
171 
172  assert(Tok.is(tok::colon) && "MayBeDesignationStart not working properly!");
174 
175  Diag(NameLoc, diag::ext_gnu_old_style_field_designator)
176  << FixItHint::CreateReplacement(SourceRange(NameLoc, ColonLoc),
177  NewSyntax);
178 
179  Designation D;
180  D.AddDesignator(Designator::getField(FieldName, SourceLocation(), NameLoc));
181  return Actions.ActOnDesignatedInitializer(D, ColonLoc, true,
182  ParseInitializer());
183  }
184 
185  // Desig - This is initialized when we see our first designator. We may have
186  // an objc message send with no designator, so we don't want to create this
187  // eagerly.
188  Designation Desig;
189 
190  // Parse each designator in the designator list until we find an initializer.
191  while (Tok.is(tok::period) || Tok.is(tok::l_square)) {
192  if (Tok.is(tok::period)) {
193  // designator: '.' identifier
194  SourceLocation DotLoc = ConsumeToken();
195 
196  if (Tok.isNot(tok::identifier)) {
197  Diag(Tok.getLocation(), diag::err_expected_field_designator);
198  return ExprError();
199  }
200 
202  Tok.getLocation()));
203  ConsumeToken(); // Eat the identifier.
204  continue;
205  }
206 
207  // We must have either an array designator now or an objc message send.
208  assert(Tok.is(tok::l_square) && "Unexpected token!");
209 
210  // Handle the two forms of array designator:
211  // array-designator: '[' constant-expression ']'
212  // array-designator: '[' constant-expression '...' constant-expression ']'
213  //
214  // Also, we have to handle the case where the expression after the
215  // designator an an objc message send: '[' objc-message-expr ']'.
216  // Interesting cases are:
217  // [foo bar] -> objc message send
218  // [foo] -> array designator
219  // [foo ... bar] -> array designator
220  // [4][foo bar] -> obsolete GNU designation with objc message send.
221  //
222  // We do not need to check for an expression starting with [[ here. If it
223  // contains an Objective-C message send, then it is not an ill-formed
224  // attribute. If it is a lambda-expression within an array-designator, then
225  // it will be rejected because a constant-expression cannot begin with a
226  // lambda-expression.
227  InMessageExpressionRAIIObject InMessage(*this, true);
228 
229  BalancedDelimiterTracker T(*this, tok::l_square);
230  T.consumeOpen();
231  SourceLocation StartLoc = T.getOpenLocation();
232 
233  ExprResult Idx;
234 
235  // If Objective-C is enabled and this is a typename (class message
236  // send) or send to 'super', parse this as a message send
237  // expression. We handle C++ and C separately, since C++ requires
238  // much more complicated parsing.
239  if (getLangOpts().ObjC && getLangOpts().CPlusPlus) {
240  // Send to 'super'.
241  if (Tok.is(tok::identifier) && Tok.getIdentifierInfo() == Ident_super &&
242  NextToken().isNot(tok::period) &&
244  CheckArrayDesignatorSyntax(*this, StartLoc, Desig);
245  return ParseAssignmentExprWithObjCMessageExprStart(
246  StartLoc, ConsumeToken(), nullptr, nullptr);
247  }
248 
249  // Parse the receiver, which is either a type or an expression.
250  bool IsExpr;
251  void *TypeOrExpr;
252  if (ParseObjCXXMessageReceiver(IsExpr, TypeOrExpr)) {
253  SkipUntil(tok::r_square, StopAtSemi);
254  return ExprError();
255  }
256 
257  // If the receiver was a type, we have a class message; parse
258  // the rest of it.
259  if (!IsExpr) {
260  CheckArrayDesignatorSyntax(*this, StartLoc, Desig);
261  return ParseAssignmentExprWithObjCMessageExprStart(StartLoc,
262  SourceLocation(),
263  ParsedType::getFromOpaquePtr(TypeOrExpr),
264  nullptr);
265  }
266 
267  // If the receiver was an expression, we still don't know
268  // whether we have a message send or an array designator; just
269  // adopt the expression for further analysis below.
270  // FIXME: potentially-potentially evaluated expression above?
271  Idx = ExprResult(static_cast<Expr*>(TypeOrExpr));
272  } else if (getLangOpts().ObjC && Tok.is(tok::identifier)) {
273  IdentifierInfo *II = Tok.getIdentifierInfo();
274  SourceLocation IILoc = Tok.getLocation();
275  ParsedType ReceiverType;
276  // Three cases. This is a message send to a type: [type foo]
277  // This is a message send to super: [super foo]
278  // This is a message sent to an expr: [super.bar foo]
279  switch (Actions.getObjCMessageKind(
280  getCurScope(), II, IILoc, II == Ident_super,
281  NextToken().is(tok::period), ReceiverType)) {
283  CheckArrayDesignatorSyntax(*this, StartLoc, Desig);
284  return ParseAssignmentExprWithObjCMessageExprStart(
285  StartLoc, ConsumeToken(), nullptr, nullptr);
286 
288  CheckArrayDesignatorSyntax(*this, StartLoc, Desig);
289  ConsumeToken(); // the identifier
290  if (!ReceiverType) {
291  SkipUntil(tok::r_square, StopAtSemi);
292  return ExprError();
293  }
294 
295  // Parse type arguments and protocol qualifiers.
296  if (Tok.is(tok::less)) {
297  SourceLocation NewEndLoc;
298  TypeResult NewReceiverType
299  = parseObjCTypeArgsAndProtocolQualifiers(IILoc, ReceiverType,
300  /*consumeLastToken=*/true,
301  NewEndLoc);
302  if (!NewReceiverType.isUsable()) {
303  SkipUntil(tok::r_square, StopAtSemi);
304  return ExprError();
305  }
306 
307  ReceiverType = NewReceiverType.get();
308  }
309 
310  return ParseAssignmentExprWithObjCMessageExprStart(StartLoc,
311  SourceLocation(),
312  ReceiverType,
313  nullptr);
314 
316  // Fall through; we'll just parse the expression and
317  // (possibly) treat this like an Objective-C message send
318  // later.
319  break;
320  }
321  }
322 
323  // Parse the index expression, if we haven't already gotten one
324  // above (which can only happen in Objective-C++).
325  // Note that we parse this as an assignment expression, not a constant
326  // expression (allowing *=, =, etc) to handle the objc case. Sema needs
327  // to validate that the expression is a constant.
328  // FIXME: We also need to tell Sema that we're in a
329  // potentially-potentially evaluated context.
330  if (!Idx.get()) {
332  if (Idx.isInvalid()) {
333  SkipUntil(tok::r_square, StopAtSemi);
334  return Idx;
335  }
336  }
337 
338  // Given an expression, we could either have a designator (if the next
339  // tokens are '...' or ']' or an objc message send. If this is an objc
340  // message send, handle it now. An objc-message send is the start of
341  // an assignment-expression production.
342  if (getLangOpts().ObjC && Tok.isNot(tok::ellipsis) &&
343  Tok.isNot(tok::r_square)) {
344  CheckArrayDesignatorSyntax(*this, Tok.getLocation(), Desig);
345  return ParseAssignmentExprWithObjCMessageExprStart(
346  StartLoc, SourceLocation(), nullptr, Idx.get());
347  }
348 
349  // If this is a normal array designator, remember it.
350  if (Tok.isNot(tok::ellipsis)) {
351  Desig.AddDesignator(Designator::getArray(Idx.get(), StartLoc));
352  } else {
353  // Handle the gnu array range extension.
354  Diag(Tok, diag::ext_gnu_array_range);
355  SourceLocation EllipsisLoc = ConsumeToken();
356 
358  if (RHS.isInvalid()) {
359  SkipUntil(tok::r_square, StopAtSemi);
360  return RHS;
361  }
363  RHS.get(),
364  StartLoc, EllipsisLoc));
365  }
366 
367  T.consumeClose();
368  Desig.getDesignator(Desig.getNumDesignators() - 1).setRBracketLoc(
369  T.getCloseLocation());
370  }
371 
372  // Okay, we're done with the designator sequence. We know that there must be
373  // at least one designator, because the only case we can get into this method
374  // without a designator is when we have an objc message send. That case is
375  // handled and returned from above.
376  assert(!Desig.empty() && "Designator is empty?");
377 
378  // Handle a normal designator sequence end, which is an equal.
379  if (Tok.is(tok::equal)) {
380  SourceLocation EqualLoc = ConsumeToken();
381  return Actions.ActOnDesignatedInitializer(Desig, EqualLoc, false,
382  ParseInitializer());
383  }
384 
385  // Handle a C++20 braced designated initialization, which results in
386  // direct-list-initialization of the aggregate element. We allow this as an
387  // extension from C++11 onwards (when direct-list-initialization was added).
388  if (Tok.is(tok::l_brace) && getLangOpts().CPlusPlus11) {
389  return Actions.ActOnDesignatedInitializer(Desig, SourceLocation(), false,
390  ParseBraceInitializer());
391  }
392 
393  // We read some number of designators and found something that isn't an = or
394  // an initializer. If we have exactly one array designator, this
395  // is the GNU 'designation: array-designator' extension. Otherwise, it is a
396  // parse error.
397  if (Desig.getNumDesignators() == 1 &&
398  (Desig.getDesignator(0).isArrayDesignator() ||
400  Diag(Tok, diag::ext_gnu_missing_equal_designator)
401  << FixItHint::CreateInsertion(Tok.getLocation(), "= ");
402  return Actions.ActOnDesignatedInitializer(Desig, Tok.getLocation(),
403  true, ParseInitializer());
404  }
405 
406  Diag(Tok, diag::err_expected_equal_designator);
407  return ExprError();
408 }
409 
410 
411 /// ParseBraceInitializer - Called when parsing an initializer that has a
412 /// leading open brace.
413 ///
414 /// initializer: [C99 6.7.8]
415 /// '{' initializer-list '}'
416 /// '{' initializer-list ',' '}'
417 /// [GNU] '{' '}'
418 ///
419 /// initializer-list:
420 /// designation[opt] initializer ...[opt]
421 /// initializer-list ',' designation[opt] initializer ...[opt]
422 ///
423 ExprResult Parser::ParseBraceInitializer() {
424  InMessageExpressionRAIIObject InMessage(*this, false);
425 
426  BalancedDelimiterTracker T(*this, tok::l_brace);
427  T.consumeOpen();
428  SourceLocation LBraceLoc = T.getOpenLocation();
429 
430  /// InitExprs - This is the actual list of expressions contained in the
431  /// initializer.
432  ExprVector InitExprs;
433 
434  if (Tok.is(tok::r_brace)) {
435  // Empty initializers are a C++ feature and a GNU extension to C.
436  if (!getLangOpts().CPlusPlus)
437  Diag(LBraceLoc, diag::ext_gnu_empty_initializer);
438  // Match the '}'.
439  return Actions.ActOnInitList(LBraceLoc, None, ConsumeBrace());
440  }
441 
442  // Enter an appropriate expression evaluation context for an initializer list.
445 
446  bool InitExprsOk = true;
447 
448  while (1) {
449  // Handle Microsoft __if_exists/if_not_exists if necessary.
450  if (getLangOpts().MicrosoftExt && (Tok.is(tok::kw___if_exists) ||
451  Tok.is(tok::kw___if_not_exists))) {
452  if (ParseMicrosoftIfExistsBraceInitializer(InitExprs, InitExprsOk)) {
453  if (Tok.isNot(tok::comma)) break;
454  ConsumeToken();
455  }
456  if (Tok.is(tok::r_brace)) break;
457  continue;
458  }
459 
460  // Parse: designation[opt] initializer
461 
462  // If we know that this cannot be a designation, just parse the nested
463  // initializer directly.
464  ExprResult SubElt;
465  if (MayBeDesignationStart())
466  SubElt = ParseInitializerWithPotentialDesignator();
467  else
468  SubElt = ParseInitializer();
469 
470  if (Tok.is(tok::ellipsis))
471  SubElt = Actions.ActOnPackExpansion(SubElt.get(), ConsumeToken());
472 
473  SubElt = Actions.CorrectDelayedTyposInExpr(SubElt.get());
474 
475  // If we couldn't parse the subelement, bail out.
476  if (SubElt.isUsable()) {
477  InitExprs.push_back(SubElt.get());
478  } else {
479  InitExprsOk = false;
480 
481  // We have two ways to try to recover from this error: if the code looks
482  // grammatically ok (i.e. we have a comma coming up) try to continue
483  // parsing the rest of the initializer. This allows us to emit
484  // diagnostics for later elements that we find. If we don't see a comma,
485  // assume there is a parse error, and just skip to recover.
486  // FIXME: This comment doesn't sound right. If there is a r_brace
487  // immediately, it can't be an error, since there is no other way of
488  // leaving this loop except through this if.
489  if (Tok.isNot(tok::comma)) {
490  SkipUntil(tok::r_brace, StopBeforeMatch);
491  break;
492  }
493  }
494 
495  // If we don't have a comma continued list, we're done.
496  if (Tok.isNot(tok::comma)) break;
497 
498  // TODO: save comma locations if some client cares.
499  ConsumeToken();
500 
501  // Handle trailing comma.
502  if (Tok.is(tok::r_brace)) break;
503  }
504 
505  bool closed = !T.consumeClose();
506 
507  if (InitExprsOk && closed)
508  return Actions.ActOnInitList(LBraceLoc, InitExprs,
509  T.getCloseLocation());
510 
511  return ExprError(); // an error occurred.
512 }
513 
514 
515 // Return true if a comma (or closing brace) is necessary after the
516 // __if_exists/if_not_exists statement.
517 bool Parser::ParseMicrosoftIfExistsBraceInitializer(ExprVector &InitExprs,
518  bool &InitExprsOk) {
519  bool trailingComma = false;
520  IfExistsCondition Result;
521  if (ParseMicrosoftIfExistsCondition(Result))
522  return false;
523 
524  BalancedDelimiterTracker Braces(*this, tok::l_brace);
525  if (Braces.consumeOpen()) {
526  Diag(Tok, diag::err_expected) << tok::l_brace;
527  return false;
528  }
529 
530  switch (Result.Behavior) {
531  case IEB_Parse:
532  // Parse the declarations below.
533  break;
534 
535  case IEB_Dependent:
536  Diag(Result.KeywordLoc, diag::warn_microsoft_dependent_exists)
537  << Result.IsIfExists;
538  // Fall through to skip.
539  LLVM_FALLTHROUGH;
540 
541  case IEB_Skip:
542  Braces.skipToEnd();
543  return false;
544  }
545 
546  while (!isEofOrEom()) {
547  trailingComma = false;
548  // If we know that this cannot be a designation, just parse the nested
549  // initializer directly.
550  ExprResult SubElt;
551  if (MayBeDesignationStart())
552  SubElt = ParseInitializerWithPotentialDesignator();
553  else
554  SubElt = ParseInitializer();
555 
556  if (Tok.is(tok::ellipsis))
557  SubElt = Actions.ActOnPackExpansion(SubElt.get(), ConsumeToken());
558 
559  // If we couldn't parse the subelement, bail out.
560  if (!SubElt.isInvalid())
561  InitExprs.push_back(SubElt.get());
562  else
563  InitExprsOk = false;
564 
565  if (Tok.is(tok::comma)) {
566  ConsumeToken();
567  trailingComma = true;
568  }
569 
570  if (Tok.is(tok::r_brace))
571  break;
572  }
573 
574  Braces.consumeClose();
575 
576  return !trailingComma;
577 }
const Token & LookAhead(unsigned N)
Peeks ahead N tokens and returns that token without consuming any tokens.
bool is(tok::TokenKind K) const
is/isNot - Predicates to check if this token is a specific kind, as in "if (Tok.is(tok::l_brace)) {...
Definition: Token.h:97
StringRef P
SourceLocation getCloseLocation() const
const IdentifierInfo * getField() const
Definition: Designator.h:73
bool isArrayRangeDesignator() const
Definition: Designator.h:71
Parser - This implements a parser for the C family of languages.
Definition: Parser.h:57
RAII object that enters a new expression evaluation context.
Definition: Sema.h:11557
bool isInObjcMethodScope() const
isInObjcMethodScope - Return true if this scope is, or is contained in, an Objective-C method body...
Definition: Scope.h:356
tok::TokenKind getKind() const
Definition: Token.h:92
bool SkipUntil(tok::TokenKind T, SkipUntilFlags Flags=static_cast< SkipUntilFlags >(0))
SkipUntil - Read tokens until we get to the specified token, then consume it (unless StopBeforeMatch ...
Definition: Parser.h:1104
const Token & NextToken()
NextToken - This peeks ahead one token and returns it without consuming it.
Definition: Parser.h:755
The message is a class message, and the identifier is a type name.
Definition: Sema.h:8716
One of these records is kept for each identifier that is lexed.
ExprResult ActOnDesignatedInitializer(Designation &Desig, SourceLocation EqualOrColonLoc, bool GNUSyntax, ExprResult Init)
Definition: SemaInit.cpp:3126
RAII class that helps handle the parsing of an open/close delimiter pair, such as braces { ...
const LangOptions & getLangOpts() const
Definition: Preprocessor.h:904
PtrTy get() const
Definition: Ownership.h:170
ExprResult CorrectDelayedTyposInExpr(Expr *E, VarDecl *InitDecl=nullptr, llvm::function_ref< ExprResult(Expr *)> Filter=[](Expr *E) -> ExprResult { return E;})
Process any TypoExprs in the given Expr and its children, generating diagnostics as appropriate and r...
unsigned getNumDesignators() const
Definition: Designator.h:192
The message is an instance message.
Definition: Sema.h:8713
bool isArrayDesignator() const
Definition: Designator.h:70
SourceLocation getLocation() const
Return a source location identifier for the specified offset in the current file. ...
Definition: Token.h:126
ObjCMessageKind getObjCMessageKind(Scope *S, IdentifierInfo *Name, SourceLocation NameLoc, bool IsSuper, bool HasTrailingDot, ParsedType &ReceiverType)
bool isInvalid() const
Definition: Ownership.h:166
SourceLocation getOpenLocation() const
bool empty() const
Definition: Designator.h:190
bool isUsable() const
Definition: Ownership.h:167
The result type of a method or function.
ParsedTemplateArgument ActOnPackExpansion(const ParsedTemplateArgument &Arg, SourceLocation EllipsisLoc)
Invoked when parsing a template argument followed by an ellipsis, which creates a pack expansion...
const LangOptions & getLangOpts() const
Definition: Parser.h:403
const Designator & getDesignator(unsigned Idx) const
Definition: Designator.h:193
Stop skipping at semicolon.
Definition: Parser.h:1084
ActionResult - This structure is used while parsing/acting on expressions, stmts, etc...
Definition: Ownership.h:153
Encodes a location in the source.
IdentifierInfo * getIdentifierInfo() const
Definition: Token.h:179
The message is sent to &#39;super&#39;.
Definition: Sema.h:8711
ExprResult ActOnInitList(SourceLocation LBraceLoc, MultiExprArg InitArgList, SourceLocation RBraceLoc)
Definition: SemaExpr.cpp:6147
Scope * getCurScope() const
Definition: Parser.h:410
StringRef getName() const
Return the actual identifier string.
bool isNot(tok::TokenKind K) const
Definition: Token.h:98
Dataflow Directional Tag Classes.
DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID)
Definition: Parser.cpp:72
static void CheckArrayDesignatorSyntax(Parser &P, SourceLocation Loc, Designation &Desig)
Definition: ParseInit.cpp:103
ExprResult ParseAssignmentExpression(TypeCastState isTypeCast=NotTypeCast)
Parse an expr that doesn&#39;t include (top-level) commas.
Definition: ParseExpr.cpp:159
static FixItHint CreateInsertion(SourceLocation InsertionLoc, StringRef Code, bool BeforePreviousInsertions=false)
Create a code modification hint that inserts the given code string at a specific location.
Definition: Diagnostic.h:92
ExprResult ParseConstantExpression(TypeCastState isTypeCast=NotTypeCast)
Definition: ParseExpr.cpp:210
void AddDesignator(Designator D)
AddDesignator - Add a designator to the end of this list.
Definition: Designator.h:186
ActionResult< Expr * > ExprResult
Definition: Ownership.h:263
SourceLocation ConsumeToken()
ConsumeToken - Consume the current &#39;peek token&#39; and lex the next one.
Definition: Parser.h:448
static FixItHint CreateReplacement(CharSourceRange RemoveRange, StringRef Code)
Create a code modification hint that replaces the given source range with the given code string...
Definition: Diagnostic.h:129
Represents a complete lambda introducer.
Definition: DeclSpec.h:2559
ExprResult ExprError()
Definition: Ownership.h:279
Designation - Represent a full designation, which is a sequence of designators.
Definition: Designator.h:180
static Designator getArray(Expr *Index, SourceLocation LBracketLoc)
Definition: Designator.h:135
A trivial tuple used to represent a source range.
static Designator getArrayRange(Expr *Start, Expr *End, SourceLocation LBracketLoc, SourceLocation EllipsisLoc)
Definition: Designator.h:145
static OpaquePtr getFromOpaquePtr(void *P)
Definition: Ownership.h:91
SourceLocation ColonLoc
Location of &#39;:&#39;.
Definition: OpenMPClause.h:107
Stop skipping at specified token, but don&#39;t skip the token itself.
Definition: Parser.h:1086