clang  9.0.0svn
DeclSpec.cpp
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1 //===--- DeclSpec.cpp - Declaration Specifier Semantic Analysis -----------===//
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 semantic analysis for declaration specifiers.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "clang/Sema/DeclSpec.h"
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/DeclCXX.h"
16 #include "clang/AST/Expr.h"
17 #include "clang/AST/LocInfoType.h"
18 #include "clang/AST/TypeLoc.h"
20 #include "clang/Basic/TargetInfo.h"
22 #include "clang/Sema/Sema.h"
24 #include "llvm/ADT/STLExtras.h"
25 #include "llvm/ADT/SmallString.h"
26 #include <cstring>
27 using namespace clang;
28 
29 
31  assert(TemplateId && "NULL template-id annotation?");
33  this->TemplateId = TemplateId;
34  StartLocation = TemplateId->TemplateNameLoc;
35  EndLocation = TemplateId->RAngleLoc;
36 }
37 
39  assert(TemplateId && "NULL template-id annotation?");
41  this->TemplateId = TemplateId;
42  StartLocation = TemplateId->TemplateNameLoc;
43  EndLocation = TemplateId->RAngleLoc;
44 }
45 
46 void CXXScopeSpec::Extend(ASTContext &Context, SourceLocation TemplateKWLoc,
47  TypeLoc TL, SourceLocation ColonColonLoc) {
48  Builder.Extend(Context, TemplateKWLoc, TL, ColonColonLoc);
49  if (Range.getBegin().isInvalid())
50  Range.setBegin(TL.getBeginLoc());
51  Range.setEnd(ColonColonLoc);
52 
53  assert(Range == Builder.getSourceRange() &&
54  "NestedNameSpecifierLoc range computation incorrect");
55 }
56 
59  SourceLocation ColonColonLoc) {
60  Builder.Extend(Context, Identifier, IdentifierLoc, ColonColonLoc);
61 
62  if (Range.getBegin().isInvalid())
63  Range.setBegin(IdentifierLoc);
64  Range.setEnd(ColonColonLoc);
65 
66  assert(Range == Builder.getSourceRange() &&
67  "NestedNameSpecifierLoc range computation incorrect");
68 }
69 
70 void CXXScopeSpec::Extend(ASTContext &Context, NamespaceDecl *Namespace,
71  SourceLocation NamespaceLoc,
72  SourceLocation ColonColonLoc) {
73  Builder.Extend(Context, Namespace, NamespaceLoc, ColonColonLoc);
74 
75  if (Range.getBegin().isInvalid())
76  Range.setBegin(NamespaceLoc);
77  Range.setEnd(ColonColonLoc);
78 
79  assert(Range == Builder.getSourceRange() &&
80  "NestedNameSpecifierLoc range computation incorrect");
81 }
82 
84  SourceLocation AliasLoc,
85  SourceLocation ColonColonLoc) {
86  Builder.Extend(Context, Alias, AliasLoc, ColonColonLoc);
87 
88  if (Range.getBegin().isInvalid())
89  Range.setBegin(AliasLoc);
90  Range.setEnd(ColonColonLoc);
91 
92  assert(Range == Builder.getSourceRange() &&
93  "NestedNameSpecifierLoc range computation incorrect");
94 }
95 
97  SourceLocation ColonColonLoc) {
98  Builder.MakeGlobal(Context, ColonColonLoc);
99 
100  Range = SourceRange(ColonColonLoc);
101 
102  assert(Range == Builder.getSourceRange() &&
103  "NestedNameSpecifierLoc range computation incorrect");
104 }
105 
107  SourceLocation SuperLoc,
108  SourceLocation ColonColonLoc) {
109  Builder.MakeSuper(Context, RD, SuperLoc, ColonColonLoc);
110 
111  Range.setBegin(SuperLoc);
112  Range.setEnd(ColonColonLoc);
113 
114  assert(Range == Builder.getSourceRange() &&
115  "NestedNameSpecifierLoc range computation incorrect");
116 }
117 
119  NestedNameSpecifier *Qualifier, SourceRange R) {
120  Builder.MakeTrivial(Context, Qualifier, R);
121  Range = R;
122 }
123 
125  if (!Other) {
126  Range = SourceRange();
127  Builder.Clear();
128  return;
129  }
130 
131  Range = Other.getSourceRange();
132  Builder.Adopt(Other);
133 }
134 
136  if (!Builder.getRepresentation())
137  return SourceLocation();
138  return Builder.getTemporary().getLocalBeginLoc();
139 }
140 
143  if (!Builder.getRepresentation())
144  return NestedNameSpecifierLoc();
145 
146  return Builder.getWithLocInContext(Context);
147 }
148 
149 /// DeclaratorChunk::getFunction - Return a DeclaratorChunk for a function.
150 /// "TheDeclarator" is the declarator that this will be added to.
152  bool isAmbiguous,
153  SourceLocation LParenLoc,
154  ParamInfo *Params,
155  unsigned NumParams,
156  SourceLocation EllipsisLoc,
157  SourceLocation RParenLoc,
158  bool RefQualifierIsLvalueRef,
159  SourceLocation RefQualifierLoc,
160  SourceLocation MutableLoc,
162  ESpecType,
163  SourceRange ESpecRange,
164  ParsedType *Exceptions,
165  SourceRange *ExceptionRanges,
166  unsigned NumExceptions,
167  Expr *NoexceptExpr,
168  CachedTokens *ExceptionSpecTokens,
170  DeclsInPrototype,
171  SourceLocation LocalRangeBegin,
172  SourceLocation LocalRangeEnd,
173  Declarator &TheDeclarator,
174  TypeResult TrailingReturnType,
175  DeclSpec *MethodQualifiers) {
176  assert(!(MethodQualifiers && MethodQualifiers->getTypeQualifiers() & DeclSpec::TQ_atomic) &&
177  "function cannot have _Atomic qualifier");
178 
179  DeclaratorChunk I;
180  I.Kind = Function;
181  I.Loc = LocalRangeBegin;
182  I.EndLoc = LocalRangeEnd;
183  I.Fun.hasPrototype = hasProto;
184  I.Fun.isVariadic = EllipsisLoc.isValid();
185  I.Fun.isAmbiguous = isAmbiguous;
186  I.Fun.LParenLoc = LParenLoc.getRawEncoding();
187  I.Fun.EllipsisLoc = EllipsisLoc.getRawEncoding();
188  I.Fun.RParenLoc = RParenLoc.getRawEncoding();
189  I.Fun.DeleteParams = false;
190  I.Fun.NumParams = NumParams;
191  I.Fun.Params = nullptr;
192  I.Fun.RefQualifierIsLValueRef = RefQualifierIsLvalueRef;
193  I.Fun.RefQualifierLoc = RefQualifierLoc.getRawEncoding();
194  I.Fun.MutableLoc = MutableLoc.getRawEncoding();
195  I.Fun.ExceptionSpecType = ESpecType;
196  I.Fun.ExceptionSpecLocBeg = ESpecRange.getBegin().getRawEncoding();
197  I.Fun.ExceptionSpecLocEnd = ESpecRange.getEnd().getRawEncoding();
199  I.Fun.Exceptions = nullptr;
200  I.Fun.NoexceptExpr = nullptr;
201  I.Fun.HasTrailingReturnType = TrailingReturnType.isUsable() ||
202  TrailingReturnType.isInvalid();
203  I.Fun.TrailingReturnType = TrailingReturnType.get();
204  I.Fun.MethodQualifiers = nullptr;
205  I.Fun.QualAttrFactory = nullptr;
206 
207  if (MethodQualifiers && (MethodQualifiers->getTypeQualifiers() ||
208  MethodQualifiers->getAttributes().size())) {
209  auto &attrs = MethodQualifiers->getAttributes();
210  I.Fun.MethodQualifiers = new DeclSpec(attrs.getPool().getFactory());
211  MethodQualifiers->forEachCVRUQualifier(
212  [&](DeclSpec::TQ TypeQual, StringRef PrintName, SourceLocation SL) {
213  I.Fun.MethodQualifiers->SetTypeQual(TypeQual, SL);
214  });
216  I.Fun.MethodQualifiers->getAttributePool().takeAllFrom(attrs.getPool());
217  }
218 
219  assert(I.Fun.ExceptionSpecType == ESpecType && "bitfield overflow");
220 
221  // new[] a parameter array if needed.
222  if (NumParams) {
223  // If the 'InlineParams' in Declarator is unused and big enough, put our
224  // parameter list there (in an effort to avoid new/delete traffic). If it
225  // is already used (consider a function returning a function pointer) or too
226  // small (function with too many parameters), go to the heap.
227  if (!TheDeclarator.InlineStorageUsed &&
228  NumParams <= llvm::array_lengthof(TheDeclarator.InlineParams)) {
229  I.Fun.Params = TheDeclarator.InlineParams;
230  new (I.Fun.Params) ParamInfo[NumParams];
231  I.Fun.DeleteParams = false;
232  TheDeclarator.InlineStorageUsed = true;
233  } else {
234  I.Fun.Params = new DeclaratorChunk::ParamInfo[NumParams];
235  I.Fun.DeleteParams = true;
236  }
237  for (unsigned i = 0; i < NumParams; i++)
238  I.Fun.Params[i] = std::move(Params[i]);
239  }
240 
241  // Check what exception specification information we should actually store.
242  switch (ESpecType) {
243  default: break; // By default, save nothing.
244  case EST_Dynamic:
245  // new[] an exception array if needed
246  if (NumExceptions) {
247  I.Fun.NumExceptionsOrDecls = NumExceptions;
248  I.Fun.Exceptions = new DeclaratorChunk::TypeAndRange[NumExceptions];
249  for (unsigned i = 0; i != NumExceptions; ++i) {
250  I.Fun.Exceptions[i].Ty = Exceptions[i];
251  I.Fun.Exceptions[i].Range = ExceptionRanges[i];
252  }
253  }
254  break;
255 
257  case EST_NoexceptFalse:
258  case EST_NoexceptTrue:
259  I.Fun.NoexceptExpr = NoexceptExpr;
260  break;
261 
262  case EST_Unparsed:
263  I.Fun.ExceptionSpecTokens = ExceptionSpecTokens;
264  break;
265  }
266 
267  if (!DeclsInPrototype.empty()) {
268  assert(ESpecType == EST_None && NumExceptions == 0 &&
269  "cannot have exception specifiers and decls in prototype");
270  I.Fun.NumExceptionsOrDecls = DeclsInPrototype.size();
271  // Copy the array of decls into stable heap storage.
272  I.Fun.DeclsInPrototype = new NamedDecl *[DeclsInPrototype.size()];
273  for (size_t J = 0; J < DeclsInPrototype.size(); ++J)
274  I.Fun.DeclsInPrototype[J] = DeclsInPrototype[J];
275  }
276 
277  return I;
278 }
279 
281  SourceLocation LSquareLoc,
283  SourceLocation RSquareLoc) {
284  assert(!hasName() && "declarator given multiple names!");
285 
286  BindingGroup.LSquareLoc = LSquareLoc;
287  BindingGroup.RSquareLoc = RSquareLoc;
288  BindingGroup.NumBindings = Bindings.size();
289  Range.setEnd(RSquareLoc);
290 
291  // We're now past the identifier.
292  SetIdentifier(nullptr, LSquareLoc);
293  Name.EndLocation = RSquareLoc;
294 
295  // Allocate storage for bindings and stash them away.
296  if (Bindings.size()) {
297  if (!InlineStorageUsed &&
298  Bindings.size() <= llvm::array_lengthof(InlineBindings)) {
299  BindingGroup.Bindings = InlineBindings;
300  BindingGroup.DeleteBindings = false;
301  InlineStorageUsed = true;
302  } else {
303  BindingGroup.Bindings =
304  new DecompositionDeclarator::Binding[Bindings.size()];
305  BindingGroup.DeleteBindings = true;
306  }
307  std::uninitialized_copy(Bindings.begin(), Bindings.end(),
308  BindingGroup.Bindings);
309  }
310 }
311 
313  for (unsigned i = 0, i_end = DeclTypeInfo.size(); i < i_end; ++i) {
314  switch (DeclTypeInfo[i].Kind) {
316  return true;
318  continue;
325  return false;
326  }
327  llvm_unreachable("Invalid type chunk");
328  }
329 
330  switch (DS.getTypeSpecType()) {
331  case TST_atomic:
332  case TST_auto:
333  case TST_auto_type:
334  case TST_bool:
335  case TST_char:
336  case TST_char8:
337  case TST_char16:
338  case TST_char32:
339  case TST_class:
340  case TST_decimal128:
341  case TST_decimal32:
342  case TST_decimal64:
343  case TST_double:
344  case TST_Accum:
345  case TST_Fract:
346  case TST_Float16:
347  case TST_float128:
348  case TST_enum:
349  case TST_error:
350  case TST_float:
351  case TST_half:
352  case TST_int:
353  case TST_int128:
354  case TST_struct:
355  case TST_interface:
356  case TST_union:
357  case TST_unknown_anytype:
358  case TST_unspecified:
359  case TST_void:
360  case TST_wchar:
361 #define GENERIC_IMAGE_TYPE(ImgType, Id) case TST_##ImgType##_t:
362 #include "clang/Basic/OpenCLImageTypes.def"
363  return false;
364 
365  case TST_decltype_auto:
366  // This must have an initializer, so can't be a function declaration,
367  // even if the initializer has function type.
368  return false;
369 
370  case TST_decltype:
371  case TST_typeofExpr:
372  if (Expr *E = DS.getRepAsExpr())
373  return E->getType()->isFunctionType();
374  return false;
375 
376  case TST_underlyingType:
377  case TST_typename:
378  case TST_typeofType: {
379  QualType QT = DS.getRepAsType().get();
380  if (QT.isNull())
381  return false;
382 
383  if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT))
384  QT = LIT->getType();
385 
386  if (QT.isNull())
387  return false;
388 
389  return QT->isFunctionType();
390  }
391  }
392 
393  llvm_unreachable("Invalid TypeSpecType!");
394 }
395 
397  assert(getContext() == DeclaratorContext::MemberContext);
398  return getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static ||
402 }
403 
407 }
408 
410  llvm::function_ref<void(TQ, StringRef, SourceLocation)> Handle) {
411  if (TypeQualifiers & TQ_const)
412  Handle(TQ_const, "const", TQ_constLoc);
413  if (TypeQualifiers & TQ_volatile)
414  Handle(TQ_volatile, "volatile", TQ_volatileLoc);
415  if (TypeQualifiers & TQ_restrict)
416  Handle(TQ_restrict, "restrict", TQ_restrictLoc);
417  if (TypeQualifiers & TQ_unaligned)
418  Handle(TQ_unaligned, "unaligned", TQ_unalignedLoc);
419 }
420 
422  llvm::function_ref<void(TQ, StringRef, SourceLocation)> Handle) {
423  forEachCVRUQualifier(Handle);
424  // FIXME: Add code below to iterate through the attributes and call Handle.
425 }
426 
428  if (!TypeSpecOwned)
429  return false;
430  return cast<TagDecl>(getRepAsDecl())->isCompleteDefinition();
431 }
432 
433 /// getParsedSpecifiers - Return a bitmask of which flavors of specifiers this
434 /// declaration specifier includes.
435 ///
437  unsigned Res = 0;
438  if (StorageClassSpec != SCS_unspecified ||
439  ThreadStorageClassSpec != TSCS_unspecified)
440  Res |= PQ_StorageClassSpecifier;
441 
442  if (TypeQualifiers != TQ_unspecified)
443  Res |= PQ_TypeQualifier;
444 
445  if (hasTypeSpecifier())
446  Res |= PQ_TypeSpecifier;
447 
448  if (FS_inline_specified || FS_virtual_specified || hasExplicitSpecifier() ||
449  FS_noreturn_specified || FS_forceinline_specified)
450  Res |= PQ_FunctionSpecifier;
451  return Res;
452 }
453 
454 template <class T> static bool BadSpecifier(T TNew, T TPrev,
455  const char *&PrevSpec,
456  unsigned &DiagID,
457  bool IsExtension = true) {
458  PrevSpec = DeclSpec::getSpecifierName(TPrev);
459  if (TNew != TPrev)
460  DiagID = diag::err_invalid_decl_spec_combination;
461  else
462  DiagID = IsExtension ? diag::ext_warn_duplicate_declspec :
463  diag::warn_duplicate_declspec;
464  return true;
465 }
466 
468  switch (S) {
469  case DeclSpec::SCS_unspecified: return "unspecified";
470  case DeclSpec::SCS_typedef: return "typedef";
471  case DeclSpec::SCS_extern: return "extern";
472  case DeclSpec::SCS_static: return "static";
473  case DeclSpec::SCS_auto: return "auto";
474  case DeclSpec::SCS_register: return "register";
475  case DeclSpec::SCS_private_extern: return "__private_extern__";
476  case DeclSpec::SCS_mutable: return "mutable";
477  }
478  llvm_unreachable("Unknown typespec!");
479 }
480 
482  switch (S) {
483  case DeclSpec::TSCS_unspecified: return "unspecified";
484  case DeclSpec::TSCS___thread: return "__thread";
485  case DeclSpec::TSCS_thread_local: return "thread_local";
486  case DeclSpec::TSCS__Thread_local: return "_Thread_local";
487  }
488  llvm_unreachable("Unknown typespec!");
489 }
490 
492  switch (W) {
493  case TSW_unspecified: return "unspecified";
494  case TSW_short: return "short";
495  case TSW_long: return "long";
496  case TSW_longlong: return "long long";
497  }
498  llvm_unreachable("Unknown typespec!");
499 }
500 
502  switch (C) {
503  case TSC_unspecified: return "unspecified";
504  case TSC_imaginary: return "imaginary";
505  case TSC_complex: return "complex";
506  }
507  llvm_unreachable("Unknown typespec!");
508 }
509 
510 
512  switch (S) {
513  case TSS_unspecified: return "unspecified";
514  case TSS_signed: return "signed";
515  case TSS_unsigned: return "unsigned";
516  }
517  llvm_unreachable("Unknown typespec!");
518 }
519 
521  const PrintingPolicy &Policy) {
522  switch (T) {
523  case DeclSpec::TST_unspecified: return "unspecified";
524  case DeclSpec::TST_void: return "void";
525  case DeclSpec::TST_char: return "char";
526  case DeclSpec::TST_wchar: return Policy.MSWChar ? "__wchar_t" : "wchar_t";
527  case DeclSpec::TST_char8: return "char8_t";
528  case DeclSpec::TST_char16: return "char16_t";
529  case DeclSpec::TST_char32: return "char32_t";
530  case DeclSpec::TST_int: return "int";
531  case DeclSpec::TST_int128: return "__int128";
532  case DeclSpec::TST_half: return "half";
533  case DeclSpec::TST_float: return "float";
534  case DeclSpec::TST_double: return "double";
535  case DeclSpec::TST_accum: return "_Accum";
536  case DeclSpec::TST_fract: return "_Fract";
537  case DeclSpec::TST_float16: return "_Float16";
538  case DeclSpec::TST_float128: return "__float128";
539  case DeclSpec::TST_bool: return Policy.Bool ? "bool" : "_Bool";
540  case DeclSpec::TST_decimal32: return "_Decimal32";
541  case DeclSpec::TST_decimal64: return "_Decimal64";
542  case DeclSpec::TST_decimal128: return "_Decimal128";
543  case DeclSpec::TST_enum: return "enum";
544  case DeclSpec::TST_class: return "class";
545  case DeclSpec::TST_union: return "union";
546  case DeclSpec::TST_struct: return "struct";
547  case DeclSpec::TST_interface: return "__interface";
548  case DeclSpec::TST_typename: return "type-name";
550  case DeclSpec::TST_typeofExpr: return "typeof";
551  case DeclSpec::TST_auto: return "auto";
552  case DeclSpec::TST_auto_type: return "__auto_type";
553  case DeclSpec::TST_decltype: return "(decltype)";
554  case DeclSpec::TST_decltype_auto: return "decltype(auto)";
555  case DeclSpec::TST_underlyingType: return "__underlying_type";
556  case DeclSpec::TST_unknown_anytype: return "__unknown_anytype";
557  case DeclSpec::TST_atomic: return "_Atomic";
558 #define GENERIC_IMAGE_TYPE(ImgType, Id) \
559  case DeclSpec::TST_##ImgType##_t: \
560  return #ImgType "_t";
561 #include "clang/Basic/OpenCLImageTypes.def"
562  case DeclSpec::TST_error: return "(error)";
563  }
564  llvm_unreachable("Unknown typespec!");
565 }
566 
568  switch (C) {
569  case CSK_unspecified: return "unspecified";
570  case CSK_constexpr: return "constexpr";
571  case CSK_consteval: return "consteval";
572  }
573  llvm_unreachable("Unknown ConstexprSpecKind");
574 }
575 
577  switch (T) {
578  case DeclSpec::TQ_unspecified: return "unspecified";
579  case DeclSpec::TQ_const: return "const";
580  case DeclSpec::TQ_restrict: return "restrict";
581  case DeclSpec::TQ_volatile: return "volatile";
582  case DeclSpec::TQ_atomic: return "_Atomic";
583  case DeclSpec::TQ_unaligned: return "__unaligned";
584  }
585  llvm_unreachable("Unknown typespec!");
586 }
587 
589  const char *&PrevSpec,
590  unsigned &DiagID,
591  const PrintingPolicy &Policy) {
592  // OpenCL v1.1 s6.8g: "The extern, static, auto and register storage-class
593  // specifiers are not supported.
594  // It seems sensible to prohibit private_extern too
595  // The cl_clang_storage_class_specifiers extension enables support for
596  // these storage-class specifiers.
597  // OpenCL v1.2 s6.8 changes this to "The auto and register storage-class
598  // specifiers are not supported."
599  // OpenCL C++ v1.0 s2.9 restricts register.
600  if (S.getLangOpts().OpenCL &&
601  !S.getOpenCLOptions().isEnabled("cl_clang_storage_class_specifiers")) {
602  switch (SC) {
603  case SCS_extern:
604  case SCS_private_extern:
605  case SCS_static:
606  if (S.getLangOpts().OpenCLVersion < 120 &&
607  !S.getLangOpts().OpenCLCPlusPlus) {
608  DiagID = diag::err_opencl_unknown_type_specifier;
609  PrevSpec = getSpecifierName(SC);
610  return true;
611  }
612  break;
613  case SCS_auto:
614  case SCS_register:
615  DiagID = diag::err_opencl_unknown_type_specifier;
616  PrevSpec = getSpecifierName(SC);
617  return true;
618  default:
619  break;
620  }
621  }
622 
623  if (StorageClassSpec != SCS_unspecified) {
624  // Maybe this is an attempt to use C++11 'auto' outside of C++11 mode.
625  bool isInvalid = true;
626  if (TypeSpecType == TST_unspecified && S.getLangOpts().CPlusPlus) {
627  if (SC == SCS_auto)
628  return SetTypeSpecType(TST_auto, Loc, PrevSpec, DiagID, Policy);
629  if (StorageClassSpec == SCS_auto) {
630  isInvalid = SetTypeSpecType(TST_auto, StorageClassSpecLoc,
631  PrevSpec, DiagID, Policy);
632  assert(!isInvalid && "auto SCS -> TST recovery failed");
633  }
634  }
635 
636  // Changing storage class is allowed only if the previous one
637  // was the 'extern' that is part of a linkage specification and
638  // the new storage class is 'typedef'.
639  if (isInvalid &&
640  !(SCS_extern_in_linkage_spec &&
641  StorageClassSpec == SCS_extern &&
642  SC == SCS_typedef))
643  return BadSpecifier(SC, (SCS)StorageClassSpec, PrevSpec, DiagID);
644  }
645  StorageClassSpec = SC;
646  StorageClassSpecLoc = Loc;
647  assert((unsigned)SC == StorageClassSpec && "SCS constants overflow bitfield");
648  return false;
649 }
650 
652  const char *&PrevSpec,
653  unsigned &DiagID) {
654  if (ThreadStorageClassSpec != TSCS_unspecified)
655  return BadSpecifier(TSC, (TSCS)ThreadStorageClassSpec, PrevSpec, DiagID);
656 
657  ThreadStorageClassSpec = TSC;
658  ThreadStorageClassSpecLoc = Loc;
659  return false;
660 }
661 
662 /// These methods set the specified attribute of the DeclSpec, but return true
663 /// and ignore the request if invalid (e.g. "extern" then "auto" is
664 /// specified).
666  const char *&PrevSpec,
667  unsigned &DiagID,
668  const PrintingPolicy &Policy) {
669  // Overwrite TSWRange.Begin only if TypeSpecWidth was unspecified, so that
670  // for 'long long' we will keep the source location of the first 'long'.
671  if (TypeSpecWidth == TSW_unspecified)
672  TSWRange.setBegin(Loc);
673  // Allow turning long -> long long.
674  else if (W != TSW_longlong || TypeSpecWidth != TSW_long)
675  return BadSpecifier(W, (TSW)TypeSpecWidth, PrevSpec, DiagID);
676  TypeSpecWidth = W;
677  // Remember location of the last 'long'
678  TSWRange.setEnd(Loc);
679  return false;
680 }
681 
683  const char *&PrevSpec,
684  unsigned &DiagID) {
685  if (TypeSpecComplex != TSC_unspecified)
686  return BadSpecifier(C, (TSC)TypeSpecComplex, PrevSpec, DiagID);
687  TypeSpecComplex = C;
688  TSCLoc = Loc;
689  return false;
690 }
691 
693  const char *&PrevSpec,
694  unsigned &DiagID) {
695  if (TypeSpecSign != TSS_unspecified)
696  return BadSpecifier(S, (TSS)TypeSpecSign, PrevSpec, DiagID);
697  TypeSpecSign = S;
698  TSSLoc = Loc;
699  return false;
700 }
701 
703  const char *&PrevSpec,
704  unsigned &DiagID,
705  ParsedType Rep,
706  const PrintingPolicy &Policy) {
707  return SetTypeSpecType(T, Loc, Loc, PrevSpec, DiagID, Rep, Policy);
708 }
709 
711  SourceLocation TagNameLoc,
712  const char *&PrevSpec,
713  unsigned &DiagID,
714  ParsedType Rep,
715  const PrintingPolicy &Policy) {
716  assert(isTypeRep(T) && "T does not store a type");
717  assert(Rep && "no type provided!");
718  if (TypeSpecType == TST_error)
719  return false;
720  if (TypeSpecType != TST_unspecified) {
721  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
722  DiagID = diag::err_invalid_decl_spec_combination;
723  return true;
724  }
725  TypeSpecType = T;
726  TypeRep = Rep;
727  TSTLoc = TagKwLoc;
728  TSTNameLoc = TagNameLoc;
729  TypeSpecOwned = false;
730  return false;
731 }
732 
734  const char *&PrevSpec,
735  unsigned &DiagID,
736  Expr *Rep,
737  const PrintingPolicy &Policy) {
738  assert(isExprRep(T) && "T does not store an expr");
739  assert(Rep && "no expression provided!");
740  if (TypeSpecType == TST_error)
741  return false;
742  if (TypeSpecType != TST_unspecified) {
743  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
744  DiagID = diag::err_invalid_decl_spec_combination;
745  return true;
746  }
747  TypeSpecType = T;
748  ExprRep = Rep;
749  TSTLoc = Loc;
750  TSTNameLoc = Loc;
751  TypeSpecOwned = false;
752  return false;
753 }
754 
756  const char *&PrevSpec,
757  unsigned &DiagID,
758  Decl *Rep, bool Owned,
759  const PrintingPolicy &Policy) {
760  return SetTypeSpecType(T, Loc, Loc, PrevSpec, DiagID, Rep, Owned, Policy);
761 }
762 
764  SourceLocation TagNameLoc,
765  const char *&PrevSpec,
766  unsigned &DiagID,
767  Decl *Rep, bool Owned,
768  const PrintingPolicy &Policy) {
769  assert(isDeclRep(T) && "T does not store a decl");
770  // Unlike the other cases, we don't assert that we actually get a decl.
771 
772  if (TypeSpecType == TST_error)
773  return false;
774  if (TypeSpecType != TST_unspecified) {
775  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
776  DiagID = diag::err_invalid_decl_spec_combination;
777  return true;
778  }
779  TypeSpecType = T;
780  DeclRep = Rep;
781  TSTLoc = TagKwLoc;
782  TSTNameLoc = TagNameLoc;
783  TypeSpecOwned = Owned && Rep != nullptr;
784  return false;
785 }
786 
788  const char *&PrevSpec,
789  unsigned &DiagID,
790  const PrintingPolicy &Policy) {
791  assert(!isDeclRep(T) && !isTypeRep(T) && !isExprRep(T) &&
792  "rep required for these type-spec kinds!");
793  if (TypeSpecType == TST_error)
794  return false;
795  if (TypeSpecType != TST_unspecified) {
796  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
797  DiagID = diag::err_invalid_decl_spec_combination;
798  return true;
799  }
800  TSTLoc = Loc;
801  TSTNameLoc = Loc;
802  if (TypeAltiVecVector && (T == TST_bool) && !TypeAltiVecBool) {
803  TypeAltiVecBool = true;
804  return false;
805  }
806  TypeSpecType = T;
807  TypeSpecOwned = false;
808  return false;
809 }
810 
811 bool DeclSpec::SetTypeSpecSat(SourceLocation Loc, const char *&PrevSpec,
812  unsigned &DiagID) {
813  // Cannot set twice
814  if (TypeSpecSat) {
815  DiagID = diag::warn_duplicate_declspec;
816  PrevSpec = "_Sat";
817  return true;
818  }
819  TypeSpecSat = true;
820  TSSatLoc = Loc;
821  return false;
822 }
823 
824 bool DeclSpec::SetTypeAltiVecVector(bool isAltiVecVector, SourceLocation Loc,
825  const char *&PrevSpec, unsigned &DiagID,
826  const PrintingPolicy &Policy) {
827  if (TypeSpecType == TST_error)
828  return false;
829  if (TypeSpecType != TST_unspecified) {
830  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
831  DiagID = diag::err_invalid_vector_decl_spec_combination;
832  return true;
833  }
834  TypeAltiVecVector = isAltiVecVector;
835  AltiVecLoc = Loc;
836  return false;
837 }
838 
839 bool DeclSpec::SetTypePipe(bool isPipe, SourceLocation Loc,
840  const char *&PrevSpec, unsigned &DiagID,
841  const PrintingPolicy &Policy) {
842  if (TypeSpecType == TST_error)
843  return false;
844  if (TypeSpecType != TST_unspecified) {
845  PrevSpec = DeclSpec::getSpecifierName((TST)TypeSpecType, Policy);
846  DiagID = diag::err_invalid_decl_spec_combination;
847  return true;
848  }
849 
850  if (isPipe) {
851  TypeSpecPipe = TSP_pipe;
852  }
853  return false;
854 }
855 
856 bool DeclSpec::SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc,
857  const char *&PrevSpec, unsigned &DiagID,
858  const PrintingPolicy &Policy) {
859  if (TypeSpecType == TST_error)
860  return false;
861  if (!TypeAltiVecVector || TypeAltiVecPixel ||
862  (TypeSpecType != TST_unspecified)) {
863  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
864  DiagID = diag::err_invalid_pixel_decl_spec_combination;
865  return true;
866  }
867  TypeAltiVecPixel = isAltiVecPixel;
868  TSTLoc = Loc;
869  TSTNameLoc = Loc;
870  return false;
871 }
872 
873 bool DeclSpec::SetTypeAltiVecBool(bool isAltiVecBool, SourceLocation Loc,
874  const char *&PrevSpec, unsigned &DiagID,
875  const PrintingPolicy &Policy) {
876  if (TypeSpecType == TST_error)
877  return false;
878  if (!TypeAltiVecVector || TypeAltiVecBool ||
879  (TypeSpecType != TST_unspecified)) {
880  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
881  DiagID = diag::err_invalid_vector_bool_decl_spec;
882  return true;
883  }
884  TypeAltiVecBool = isAltiVecBool;
885  TSTLoc = Loc;
886  TSTNameLoc = Loc;
887  return false;
888 }
889 
891  TypeSpecType = TST_error;
892  TypeSpecOwned = false;
893  TSTLoc = SourceLocation();
894  TSTNameLoc = SourceLocation();
895  return false;
896 }
897 
898 bool DeclSpec::SetTypeQual(TQ T, SourceLocation Loc, const char *&PrevSpec,
899  unsigned &DiagID, const LangOptions &Lang) {
900  // Duplicates are permitted in C99 onwards, but are not permitted in C89 or
901  // C++. However, since this is likely not what the user intended, we will
902  // always warn. We do not need to set the qualifier's location since we
903  // already have it.
904  if (TypeQualifiers & T) {
905  bool IsExtension = true;
906  if (Lang.C99)
907  IsExtension = false;
908  return BadSpecifier(T, T, PrevSpec, DiagID, IsExtension);
909  }
910 
911  return SetTypeQual(T, Loc);
912 }
913 
915  TypeQualifiers |= T;
916 
917  switch (T) {
918  case TQ_unspecified: break;
919  case TQ_const: TQ_constLoc = Loc; return false;
920  case TQ_restrict: TQ_restrictLoc = Loc; return false;
921  case TQ_volatile: TQ_volatileLoc = Loc; return false;
922  case TQ_unaligned: TQ_unalignedLoc = Loc; return false;
923  case TQ_atomic: TQ_atomicLoc = Loc; return false;
924  }
925 
926  llvm_unreachable("Unknown type qualifier!");
927 }
928 
929 bool DeclSpec::setFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec,
930  unsigned &DiagID) {
931  // 'inline inline' is ok. However, since this is likely not what the user
932  // intended, we will always warn, similar to duplicates of type qualifiers.
933  if (FS_inline_specified) {
934  DiagID = diag::warn_duplicate_declspec;
935  PrevSpec = "inline";
936  return true;
937  }
938  FS_inline_specified = true;
939  FS_inlineLoc = Loc;
940  return false;
941 }
942 
943 bool DeclSpec::setFunctionSpecForceInline(SourceLocation Loc, const char *&PrevSpec,
944  unsigned &DiagID) {
945  if (FS_forceinline_specified) {
946  DiagID = diag::warn_duplicate_declspec;
947  PrevSpec = "__forceinline";
948  return true;
949  }
950  FS_forceinline_specified = true;
951  FS_forceinlineLoc = Loc;
952  return false;
953 }
954 
956  const char *&PrevSpec,
957  unsigned &DiagID) {
958  // 'virtual virtual' is ok, but warn as this is likely not what the user
959  // intended.
960  if (FS_virtual_specified) {
961  DiagID = diag::warn_duplicate_declspec;
962  PrevSpec = "virtual";
963  return true;
964  }
965  FS_virtual_specified = true;
966  FS_virtualLoc = Loc;
967  return false;
968 }
969 
971  const char *&PrevSpec, unsigned &DiagID,
972  ExplicitSpecifier ExplicitSpec,
973  SourceLocation CloseParenLoc) {
974  assert((ExplicitSpec.getKind() == ExplicitSpecKind::ResolvedTrue ||
975  ExplicitSpec.getExpr()) &&
976  "invalid ExplicitSpecifier");
977  // 'explicit explicit' is ok, but warn as this is likely not what the user
978  // intended.
979  if (hasExplicitSpecifier()) {
980  DiagID = (ExplicitSpec.getExpr() || FS_explicit_specifier.getExpr())
981  ? diag::err_duplicate_declspec
982  : diag::ext_warn_duplicate_declspec;
983  PrevSpec = "explicit";
984  return true;
985  }
986  FS_explicit_specifier = ExplicitSpec;
987  FS_explicitLoc = Loc;
988  FS_explicitCloseParenLoc = CloseParenLoc;
989  return false;
990 }
991 
993  const char *&PrevSpec,
994  unsigned &DiagID) {
995  // '_Noreturn _Noreturn' is ok, but warn as this is likely not what the user
996  // intended.
997  if (FS_noreturn_specified) {
998  DiagID = diag::warn_duplicate_declspec;
999  PrevSpec = "_Noreturn";
1000  return true;
1001  }
1002  FS_noreturn_specified = true;
1003  FS_noreturnLoc = Loc;
1004  return false;
1005 }
1006 
1007 bool DeclSpec::SetFriendSpec(SourceLocation Loc, const char *&PrevSpec,
1008  unsigned &DiagID) {
1009  if (Friend_specified) {
1010  PrevSpec = "friend";
1011  // Keep the later location, so that we can later diagnose ill-formed
1012  // declarations like 'friend class X friend;'. Per [class.friend]p3,
1013  // 'friend' must be the first token in a friend declaration that is
1014  // not a function declaration.
1015  FriendLoc = Loc;
1016  DiagID = diag::warn_duplicate_declspec;
1017  return true;
1018  }
1019 
1020  Friend_specified = true;
1021  FriendLoc = Loc;
1022  return false;
1023 }
1024 
1025 bool DeclSpec::setModulePrivateSpec(SourceLocation Loc, const char *&PrevSpec,
1026  unsigned &DiagID) {
1027  if (isModulePrivateSpecified()) {
1028  PrevSpec = "__module_private__";
1029  DiagID = diag::ext_warn_duplicate_declspec;
1030  return true;
1031  }
1032 
1033  ModulePrivateLoc = Loc;
1034  return false;
1035 }
1036 
1038  SourceLocation Loc, const char *&PrevSpec,
1039  unsigned &DiagID) {
1040  if (getConstexprSpecifier() != CSK_unspecified) {
1041  if (getConstexprSpecifier() == CSK_consteval || ConstexprKind == CSK_consteval)
1042  return BadSpecifier(ConstexprKind, getConstexprSpecifier(), PrevSpec, DiagID);
1043  DiagID = diag::warn_duplicate_declspec;
1044  PrevSpec = "constexpr";
1045  return true;
1046  }
1047  ConstexprSpecifier = ConstexprKind;
1048  ConstexprLoc = Loc;
1049  return false;
1050 }
1051 
1052 void DeclSpec::SaveWrittenBuiltinSpecs() {
1053  writtenBS.Sign = getTypeSpecSign();
1054  writtenBS.Width = getTypeSpecWidth();
1055  writtenBS.Type = getTypeSpecType();
1056  // Search the list of attributes for the presence of a mode attribute.
1057  writtenBS.ModeAttr = getAttributes().hasAttribute(ParsedAttr::AT_Mode);
1058 }
1059 
1060 /// Finish - This does final analysis of the declspec, rejecting things like
1061 /// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
1062 /// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
1063 /// DeclSpec is guaranteed self-consistent, even if an error occurred.
1064 void DeclSpec::Finish(Sema &S, const PrintingPolicy &Policy) {
1065  // Before possibly changing their values, save specs as written.
1066  SaveWrittenBuiltinSpecs();
1067 
1068  // Check the type specifier components first. No checking for an invalid
1069  // type.
1070  if (TypeSpecType == TST_error)
1071  return;
1072 
1073  // If decltype(auto) is used, no other type specifiers are permitted.
1074  if (TypeSpecType == TST_decltype_auto &&
1075  (TypeSpecWidth != TSW_unspecified ||
1076  TypeSpecComplex != TSC_unspecified ||
1077  TypeSpecSign != TSS_unspecified ||
1078  TypeAltiVecVector || TypeAltiVecPixel || TypeAltiVecBool ||
1079  TypeQualifiers)) {
1080  const unsigned NumLocs = 9;
1081  SourceLocation ExtraLocs[NumLocs] = {
1082  TSWRange.getBegin(), TSCLoc, TSSLoc,
1083  AltiVecLoc, TQ_constLoc, TQ_restrictLoc,
1084  TQ_volatileLoc, TQ_atomicLoc, TQ_unalignedLoc};
1085  FixItHint Hints[NumLocs];
1086  SourceLocation FirstLoc;
1087  for (unsigned I = 0; I != NumLocs; ++I) {
1088  if (ExtraLocs[I].isValid()) {
1089  if (FirstLoc.isInvalid() ||
1091  FirstLoc))
1092  FirstLoc = ExtraLocs[I];
1093  Hints[I] = FixItHint::CreateRemoval(ExtraLocs[I]);
1094  }
1095  }
1096  TypeSpecWidth = TSW_unspecified;
1097  TypeSpecComplex = TSC_unspecified;
1098  TypeSpecSign = TSS_unspecified;
1099  TypeAltiVecVector = TypeAltiVecPixel = TypeAltiVecBool = false;
1100  TypeQualifiers = 0;
1101  S.Diag(TSTLoc, diag::err_decltype_auto_cannot_be_combined)
1102  << Hints[0] << Hints[1] << Hints[2] << Hints[3]
1103  << Hints[4] << Hints[5] << Hints[6] << Hints[7];
1104  }
1105 
1106  // Validate and finalize AltiVec vector declspec.
1107  if (TypeAltiVecVector) {
1108  if (TypeAltiVecBool) {
1109  // Sign specifiers are not allowed with vector bool. (PIM 2.1)
1110  if (TypeSpecSign != TSS_unspecified) {
1111  S.Diag(TSSLoc, diag::err_invalid_vector_bool_decl_spec)
1112  << getSpecifierName((TSS)TypeSpecSign);
1113  }
1114 
1115  // Only char/int are valid with vector bool. (PIM 2.1)
1116  if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
1117  (TypeSpecType != TST_int)) || TypeAltiVecPixel) {
1118  S.Diag(TSTLoc, diag::err_invalid_vector_bool_decl_spec)
1119  << (TypeAltiVecPixel ? "__pixel" :
1120  getSpecifierName((TST)TypeSpecType, Policy));
1121  }
1122 
1123  // Only 'short' and 'long long' are valid with vector bool. (PIM 2.1)
1124  if ((TypeSpecWidth != TSW_unspecified) && (TypeSpecWidth != TSW_short) &&
1125  (TypeSpecWidth != TSW_longlong))
1126  S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_bool_decl_spec)
1127  << getSpecifierName((TSW)TypeSpecWidth);
1128 
1129  // vector bool long long requires VSX support or ZVector.
1130  if ((TypeSpecWidth == TSW_longlong) &&
1131  (!S.Context.getTargetInfo().hasFeature("vsx")) &&
1132  (!S.Context.getTargetInfo().hasFeature("power8-vector")) &&
1133  !S.getLangOpts().ZVector)
1134  S.Diag(TSTLoc, diag::err_invalid_vector_long_long_decl_spec);
1135 
1136  // Elements of vector bool are interpreted as unsigned. (PIM 2.1)
1137  if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
1138  (TypeSpecWidth != TSW_unspecified))
1139  TypeSpecSign = TSS_unsigned;
1140  } else if (TypeSpecType == TST_double) {
1141  // vector long double and vector long long double are never allowed.
1142  // vector double is OK for Power7 and later, and ZVector.
1143  if (TypeSpecWidth == TSW_long || TypeSpecWidth == TSW_longlong)
1144  S.Diag(TSWRange.getBegin(),
1145  diag::err_invalid_vector_long_double_decl_spec);
1146  else if (!S.Context.getTargetInfo().hasFeature("vsx") &&
1147  !S.getLangOpts().ZVector)
1148  S.Diag(TSTLoc, diag::err_invalid_vector_double_decl_spec);
1149  } else if (TypeSpecType == TST_float) {
1150  // vector float is unsupported for ZVector unless we have the
1151  // vector-enhancements facility 1 (ISA revision 12).
1152  if (S.getLangOpts().ZVector &&
1153  !S.Context.getTargetInfo().hasFeature("arch12"))
1154  S.Diag(TSTLoc, diag::err_invalid_vector_float_decl_spec);
1155  } else if (TypeSpecWidth == TSW_long) {
1156  // vector long is unsupported for ZVector and deprecated for AltiVec.
1157  if (S.getLangOpts().ZVector)
1158  S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_long_decl_spec);
1159  else
1160  S.Diag(TSWRange.getBegin(),
1161  diag::warn_vector_long_decl_spec_combination)
1162  << getSpecifierName((TST)TypeSpecType, Policy);
1163  }
1164 
1165  if (TypeAltiVecPixel) {
1166  //TODO: perform validation
1167  TypeSpecType = TST_int;
1168  TypeSpecSign = TSS_unsigned;
1169  TypeSpecWidth = TSW_short;
1170  TypeSpecOwned = false;
1171  }
1172  }
1173 
1174  bool IsFixedPointType =
1175  TypeSpecType == TST_accum || TypeSpecType == TST_fract;
1176 
1177  // signed/unsigned are only valid with int/char/wchar_t/_Accum.
1178  if (TypeSpecSign != TSS_unspecified) {
1179  if (TypeSpecType == TST_unspecified)
1180  TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
1181  else if (TypeSpecType != TST_int && TypeSpecType != TST_int128 &&
1182  TypeSpecType != TST_char && TypeSpecType != TST_wchar &&
1183  !IsFixedPointType) {
1184  S.Diag(TSSLoc, diag::err_invalid_sign_spec)
1185  << getSpecifierName((TST)TypeSpecType, Policy);
1186  // signed double -> double.
1187  TypeSpecSign = TSS_unspecified;
1188  }
1189  }
1190 
1191  // Validate the width of the type.
1192  switch (TypeSpecWidth) {
1193  case TSW_unspecified: break;
1194  case TSW_short: // short int
1195  case TSW_longlong: // long long int
1196  if (TypeSpecType == TST_unspecified)
1197  TypeSpecType = TST_int; // short -> short int, long long -> long long int.
1198  else if (!(TypeSpecType == TST_int ||
1199  (IsFixedPointType && TypeSpecWidth != TSW_longlong))) {
1200  S.Diag(TSWRange.getBegin(), diag::err_invalid_width_spec)
1201  << (int)TypeSpecWidth << getSpecifierName((TST)TypeSpecType, Policy);
1202  TypeSpecType = TST_int;
1203  TypeSpecSat = false;
1204  TypeSpecOwned = false;
1205  }
1206  break;
1207  case TSW_long: // long double, long int
1208  if (TypeSpecType == TST_unspecified)
1209  TypeSpecType = TST_int; // long -> long int.
1210  else if (TypeSpecType != TST_int && TypeSpecType != TST_double &&
1211  !IsFixedPointType) {
1212  S.Diag(TSWRange.getBegin(), diag::err_invalid_width_spec)
1213  << (int)TypeSpecWidth << getSpecifierName((TST)TypeSpecType, Policy);
1214  TypeSpecType = TST_int;
1215  TypeSpecSat = false;
1216  TypeSpecOwned = false;
1217  }
1218  break;
1219  }
1220 
1221  // TODO: if the implementation does not implement _Complex or _Imaginary,
1222  // disallow their use. Need information about the backend.
1223  if (TypeSpecComplex != TSC_unspecified) {
1224  if (TypeSpecType == TST_unspecified) {
1225  S.Diag(TSCLoc, diag::ext_plain_complex)
1227  S.getLocForEndOfToken(getTypeSpecComplexLoc()),
1228  " double");
1229  TypeSpecType = TST_double; // _Complex -> _Complex double.
1230  } else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
1231  // Note that this intentionally doesn't include _Complex _Bool.
1232  if (!S.getLangOpts().CPlusPlus)
1233  S.Diag(TSTLoc, diag::ext_integer_complex);
1234  } else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
1235  S.Diag(TSCLoc, diag::err_invalid_complex_spec)
1236  << getSpecifierName((TST)TypeSpecType, Policy);
1237  TypeSpecComplex = TSC_unspecified;
1238  }
1239  }
1240 
1241  // C11 6.7.1/3, C++11 [dcl.stc]p1, GNU TLS: __thread, thread_local and
1242  // _Thread_local can only appear with the 'static' and 'extern' storage class
1243  // specifiers. We also allow __private_extern__ as an extension.
1244  if (ThreadStorageClassSpec != TSCS_unspecified) {
1245  switch (StorageClassSpec) {
1246  case SCS_unspecified:
1247  case SCS_extern:
1248  case SCS_private_extern:
1249  case SCS_static:
1250  break;
1251  default:
1253  getThreadStorageClassSpecLoc(), getStorageClassSpecLoc()))
1254  S.Diag(getStorageClassSpecLoc(),
1255  diag::err_invalid_decl_spec_combination)
1256  << DeclSpec::getSpecifierName(getThreadStorageClassSpec())
1257  << SourceRange(getThreadStorageClassSpecLoc());
1258  else
1259  S.Diag(getThreadStorageClassSpecLoc(),
1260  diag::err_invalid_decl_spec_combination)
1261  << DeclSpec::getSpecifierName(getStorageClassSpec())
1262  << SourceRange(getStorageClassSpecLoc());
1263  // Discard the thread storage class specifier to recover.
1264  ThreadStorageClassSpec = TSCS_unspecified;
1265  ThreadStorageClassSpecLoc = SourceLocation();
1266  }
1267  }
1268 
1269  // If no type specifier was provided and we're parsing a language where
1270  // the type specifier is not optional, but we got 'auto' as a storage
1271  // class specifier, then assume this is an attempt to use C++0x's 'auto'
1272  // type specifier.
1273  if (S.getLangOpts().CPlusPlus &&
1274  TypeSpecType == TST_unspecified && StorageClassSpec == SCS_auto) {
1275  TypeSpecType = TST_auto;
1276  StorageClassSpec = SCS_unspecified;
1277  TSTLoc = TSTNameLoc = StorageClassSpecLoc;
1278  StorageClassSpecLoc = SourceLocation();
1279  }
1280  // Diagnose if we've recovered from an ill-formed 'auto' storage class
1281  // specifier in a pre-C++11 dialect of C++.
1282  if (!S.getLangOpts().CPlusPlus11 && TypeSpecType == TST_auto)
1283  S.Diag(TSTLoc, diag::ext_auto_type_specifier);
1284  if (S.getLangOpts().CPlusPlus && !S.getLangOpts().CPlusPlus11 &&
1285  StorageClassSpec == SCS_auto)
1286  S.Diag(StorageClassSpecLoc, diag::warn_auto_storage_class)
1287  << FixItHint::CreateRemoval(StorageClassSpecLoc);
1288  if (TypeSpecType == TST_char8)
1289  S.Diag(TSTLoc, diag::warn_cxx17_compat_unicode_type);
1290  else if (TypeSpecType == TST_char16 || TypeSpecType == TST_char32)
1291  S.Diag(TSTLoc, diag::warn_cxx98_compat_unicode_type)
1292  << (TypeSpecType == TST_char16 ? "char16_t" : "char32_t");
1293  if (getConstexprSpecifier() == CSK_constexpr)
1294  S.Diag(ConstexprLoc, diag::warn_cxx98_compat_constexpr);
1295  if (getConstexprSpecifier() == CSK_consteval)
1296  S.Diag(ConstexprLoc, diag::warn_cxx20_compat_consteval);
1297  // C++ [class.friend]p6:
1298  // No storage-class-specifier shall appear in the decl-specifier-seq
1299  // of a friend declaration.
1300  if (isFriendSpecified() &&
1301  (getStorageClassSpec() || getThreadStorageClassSpec())) {
1302  SmallString<32> SpecName;
1303  SourceLocation SCLoc;
1304  FixItHint StorageHint, ThreadHint;
1305 
1306  if (DeclSpec::SCS SC = getStorageClassSpec()) {
1307  SpecName = getSpecifierName(SC);
1308  SCLoc = getStorageClassSpecLoc();
1309  StorageHint = FixItHint::CreateRemoval(SCLoc);
1310  }
1311 
1312  if (DeclSpec::TSCS TSC = getThreadStorageClassSpec()) {
1313  if (!SpecName.empty()) SpecName += " ";
1314  SpecName += getSpecifierName(TSC);
1315  SCLoc = getThreadStorageClassSpecLoc();
1316  ThreadHint = FixItHint::CreateRemoval(SCLoc);
1317  }
1318 
1319  S.Diag(SCLoc, diag::err_friend_decl_spec)
1320  << SpecName << StorageHint << ThreadHint;
1321 
1322  ClearStorageClassSpecs();
1323  }
1324 
1325  // C++11 [dcl.fct.spec]p5:
1326  // The virtual specifier shall be used only in the initial
1327  // declaration of a non-static class member function;
1328  // C++11 [dcl.fct.spec]p6:
1329  // The explicit specifier shall be used only in the declaration of
1330  // a constructor or conversion function within its class
1331  // definition;
1332  if (isFriendSpecified() && (isVirtualSpecified() || hasExplicitSpecifier())) {
1333  StringRef Keyword;
1334  FixItHint Hint;
1335  SourceLocation SCLoc;
1336 
1337  if (isVirtualSpecified()) {
1338  Keyword = "virtual";
1339  SCLoc = getVirtualSpecLoc();
1340  Hint = FixItHint::CreateRemoval(SCLoc);
1341  } else {
1342  Keyword = "explicit";
1343  SCLoc = getExplicitSpecLoc();
1344  Hint = FixItHint::CreateRemoval(getExplicitSpecRange());
1345  }
1346 
1347  S.Diag(SCLoc, diag::err_friend_decl_spec)
1348  << Keyword << Hint;
1349 
1350  FS_virtual_specified = false;
1351  FS_explicit_specifier = ExplicitSpecifier();
1352  FS_virtualLoc = FS_explicitLoc = SourceLocation();
1353  }
1354 
1355  assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
1356 
1357  // Okay, now we can infer the real type.
1358 
1359  // TODO: return "auto function" and other bad things based on the real type.
1360 
1361  // 'data definition has no type or storage class'?
1362 }
1363 
1365  TST tst = getTypeSpecType();
1366  return isDeclRep(tst) && getRepAsDecl() != nullptr &&
1367  StorageClassSpec != DeclSpec::SCS_typedef;
1368 }
1369 
1372  SourceLocation SymbolLocations[3]) {
1374  StartLocation = OperatorLoc;
1375  EndLocation = OperatorLoc;
1377  for (unsigned I = 0; I != 3; ++I) {
1378  OperatorFunctionId.SymbolLocations[I] = SymbolLocations[I].getRawEncoding();
1379 
1380  if (SymbolLocations[I].isValid())
1381  EndLocation = SymbolLocations[I];
1382  }
1383 }
1384 
1386  const char *&PrevSpec) {
1387  if (!FirstLocation.isValid())
1388  FirstLocation = Loc;
1389  LastLocation = Loc;
1390  LastSpecifier = VS;
1391 
1392  if (Specifiers & VS) {
1393  PrevSpec = getSpecifierName(VS);
1394  return true;
1395  }
1396 
1397  Specifiers |= VS;
1398 
1399  switch (VS) {
1400  default: llvm_unreachable("Unknown specifier!");
1401  case VS_Override: VS_overrideLoc = Loc; break;
1402  case VS_GNU_Final:
1403  case VS_Sealed:
1404  case VS_Final: VS_finalLoc = Loc; break;
1405  }
1406 
1407  return false;
1408 }
1409 
1411  switch (VS) {
1412  default: llvm_unreachable("Unknown specifier");
1413  case VS_Override: return "override";
1414  case VS_Final: return "final";
1415  case VS_GNU_Final: return "__final";
1416  case VS_Sealed: return "sealed";
1417  }
1418 }
Defines the clang::ASTContext interface.
unsigned MutableLoc
The location of the &#39;mutable&#39; qualifer in a lambda-declarator, if any.
Definition: DeclSpec.h:1312
unsigned RefQualifierIsLValueRef
Whether the ref-qualifier (if any) is an lvalue reference.
Definition: DeclSpec.h:1275
no exception specification
SourceLocation getLastQualifierNameLoc() const
Retrieve the location of the name in the last qualifier in this nested name specifier.
Definition: DeclSpec.cpp:135
unsigned getRawEncoding() const
When a SourceLocation itself cannot be used, this returns an (opaque) 32-bit integer encoding for it...
void MakeSuper(ASTContext &Context, CXXRecordDecl *RD, SourceLocation SuperLoc, SourceLocation ColonColonLoc)
Turns this (empty) nested-name-specifier into &#39;__super&#39; nested-name-specifier.
Definition: DeclSpec.cpp:106
A (possibly-)qualified type.
Definition: Type.h:643
SourceLocation StartLocation
The location of the first token that describes this unqualified-id, which will be the location of the...
Definition: DeclSpec.h:1002
SourceRange getSourceRange() const LLVM_READONLY
Retrieve the source range covering the entirety of this nested-name-specifier.
SizeType size() const
Definition: ParsedAttr.h:817
bool SetTypeQual(TQ T, SourceLocation Loc)
Definition: DeclSpec.cpp:914
static const TST TST_wchar
Definition: DeclSpec.h:275
SourceLocation TemplateNameLoc
TemplateNameLoc - The location of the template name within the source.
IdentifierInfo * Identifier
When Kind == IK_Identifier, the parsed identifier, or when Kind == IK_UserLiteralId, the identifier suffix.
Definition: DeclSpec.h:972
unsigned MSWChar
When true, print the built-in wchar_t type as __wchar_t.
static const TST TST_typeofExpr
Definition: DeclSpec.h:299
SemaDiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID)
Emit a diagnostic.
Definition: Sema.h:1362
static const TST TST_char16
Definition: DeclSpec.h:277
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:88
unsigned ExceptionSpecLocBeg
The beginning location of the exception specification, if any.
Definition: DeclSpec.h:1315
unsigned EllipsisLoc
When isVariadic is true, the location of the ellipsis in the source.
Definition: DeclSpec.h:1291
bool isBeforeInTranslationUnit(SourceLocation LHS, SourceLocation RHS) const
Determines the order of 2 source locations in the translation unit.
A constructor named via a template-id.
ExplicitSpecKind getKind() const
Definition: DeclCXX.h:2009
One instance of this struct is used for each type in a declarator that is parsed. ...
Definition: DeclSpec.h:1158
Represent a C++ namespace.
Definition: Decl.h:514
SourceLocation EndLoc
EndLoc - If valid, the place where this chunck ends.
Definition: DeclSpec.h:1166
SourceLocation getLocForEndOfToken(SourceLocation Loc, unsigned Offset=0)
Calls Lexer::getLocForEndOfToken()
Definition: Sema.cpp:47
unsigned NumExceptionsOrDecls
NumExceptionsOrDecls - This is the number of types in the dynamic-exception-decl, if the function has...
Definition: DeclSpec.h:1303
NamedDecl ** DeclsInPrototype
Pointer to a new[]&#39;d array of declarations that need to be available for lookup inside the function b...
Definition: DeclSpec.h:1348
static const char * getSpecifierName(DeclSpec::TST T, const PrintingPolicy &Policy)
Turn a type-specifier-type into a string like "_Bool" or "union".
Definition: DeclSpec.cpp:520
const TargetInfo & getTargetInfo() const
Definition: ASTContext.h:693
static const char * getSpecifierName(Specifier VS)
Definition: DeclSpec.cpp:1410
Store information needed for an explicit specifier.
Definition: DeclCXX.h:2001
bool SetTypeAltiVecBool(bool isAltiVecBool, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:873
An overloaded operator name, e.g., operator+.
unsigned RefQualifierLoc
The location of the ref-qualifier, if any.
Definition: DeclSpec.h:1308
void Adopt(NestedNameSpecifierLoc Other)
Adopt an existing nested-name-specifier (with source-range information).
Definition: DeclSpec.cpp:124
static const TSCS TSCS_unspecified
Definition: DeclSpec.h:246
static const TST TST_underlyingType
Definition: DeclSpec.h:302
Information about one declarator, including the parsed type information and the identifier.
Definition: DeclSpec.h:1775
unsigned getParsedSpecifiers() const
Return a bitmask of which flavors of specifiers this DeclSpec includes.
Definition: DeclSpec.cpp:436
TypeSpecifierType
Specifies the kind of type.
Definition: Specifiers.h:59
static const TST TST_interface
Definition: DeclSpec.h:295
static const TST TST_char
Definition: DeclSpec.h:274
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:37
OpenCLOptions & getOpenCLOptions()
Definition: Sema.h:1286
long i
Definition: xmmintrin.h:1456
bool SetConstexprSpec(ConstexprSpecKind ConstexprKind, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1037
noexcept(expression), value-dependent
enum clang::DeclaratorChunk::@217 Kind
std::string getName(ArrayRef< StringRef > Parts) const
Get the platform-specific name separator.
Information about a template-id annotation token.
static const TST TST_unknown_anytype
Definition: DeclSpec.h:305
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:56
TemplateIdAnnotation * TemplateId
When Kind == IK_TemplateId or IK_ConstructorTemplateId, the template-id annotation that contains the ...
Definition: DeclSpec.h:996
Expr * NoexceptExpr
Pointer to the expression in the noexcept-specifier of this function, if it has one.
Definition: DeclSpec.h:1339
One of these records is kept for each identifier that is lexed.
void setConstructorTemplateId(TemplateIdAnnotation *TemplateId)
Specify that this unqualified-id was parsed as a template-id that names a constructor.
Definition: DeclSpec.cpp:38
static const TST TST_decimal32
Definition: DeclSpec.h:289
static const TST TST_char8
Definition: DeclSpec.h:276
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:154
A C++ nested-name-specifier augmented with source location information.
TypeSpecifierSign
Specifies the signedness of a type, e.g., signed or unsigned.
Definition: Specifiers.h:47
static const TST TST_class
Definition: DeclSpec.h:296
bool setFunctionSpecExplicit(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, ExplicitSpecifier ExplicitSpec, SourceLocation CloseParenLoc)
Definition: DeclSpec.cpp:970
OverloadedOperatorKind Operator
The kind of overloaded operator.
Definition: DeclSpec.h:955
static const TST TST_double
Definition: DeclSpec.h:283
struct OFI OperatorFunctionId
When Kind == IK_OperatorFunctionId, the overloaded operator that we parsed.
Definition: DeclSpec.h:976
bool setFunctionSpecVirtual(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:955
static const TST TST_error
Definition: DeclSpec.h:310
static const TST TST_enum
Definition: DeclSpec.h:292
bool hasTagDefinition() const
Definition: DeclSpec.cpp:427
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:49
static const TST TST_accum
Definition: DeclSpec.h:285
bool SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:856
PtrTy get() const
Definition: Ownership.h:170
bool setFunctionSpecForceInline(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:943
SCS
storage-class-specifier
Definition: DeclSpec.h:232
void takeAllFrom(ParsedAttributes &attrs)
Definition: ParsedAttr.h:913
unsigned HasTrailingReturnType
HasTrailingReturnType - If this is true, a trailing return type was specified.
Definition: DeclSpec.h:1285
bool SetFriendSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1007
unsigned RParenLoc
The location of the right parenthesis in the source.
Definition: DeclSpec.h:1294
bool SetTypePipe(bool isPipe, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:839
bool setFunctionSpecNoreturn(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:992
const LangOptions & getLangOpts() const
Definition: Sema.h:1285
void setTemplateId(TemplateIdAnnotation *TemplateId)
Specify that this unqualified-id was parsed as a template-id.
Definition: DeclSpec.cpp:30
NestedNameSpecifierLoc getWithLocInContext(ASTContext &Context) const
Retrieve a nested-name-specifier with location information, copied into the given AST context...
Definition: DeclSpec.cpp:142
static const TST TST_float
Definition: DeclSpec.h:282
Sema - This implements semantic analysis and AST building for C.
Definition: Sema.h:328
static DeclaratorChunk getFunction(bool HasProto, bool IsAmbiguous, SourceLocation LParenLoc, ParamInfo *Params, unsigned NumParams, SourceLocation EllipsisLoc, SourceLocation RParenLoc, bool RefQualifierIsLvalueRef, SourceLocation RefQualifierLoc, SourceLocation MutableLoc, ExceptionSpecificationType ESpecType, SourceRange ESpecRange, ParsedType *Exceptions, SourceRange *ExceptionRanges, unsigned NumExceptions, Expr *NoexceptExpr, CachedTokens *ExceptionSpecTokens, ArrayRef< NamedDecl *> DeclsInPrototype, SourceLocation LocalRangeBegin, SourceLocation LocalRangeEnd, Declarator &TheDeclarator, TypeResult TrailingReturnType=TypeResult(), DeclSpec *MethodQualifiers=nullptr)
DeclaratorChunk::getFunction - Return a DeclaratorChunk for a function.
Definition: DeclSpec.cpp:151
void MakeTrivial(ASTContext &Context, NestedNameSpecifier *Qualifier, SourceRange R)
Make a new nested-name-specifier from incomplete source-location information.
Definition: DeclSpec.cpp:118
Holds a QualType and a TypeSourceInfo* that came out of a declarator parsing.
Definition: LocInfoType.h:28
bool isDeclarationOfFunction() const
Determine whether the declaration that will be produced from this declaration will be a function...
Definition: DeclSpec.cpp:312
DeclSpec * MethodQualifiers
DeclSpec for the function with the qualifier related info.
Definition: DeclSpec.h:1326
unsigned NumParams
NumParams - This is the number of formal parameters specified by the declarator.
Definition: DeclSpec.h:1298
bool isEnabled(llvm::StringRef Ext) const
Definition: OpenCLOptions.h:39
SourceLocation getBeginLoc() const
Get the begin source location.
Definition: TypeLoc.cpp:189
This represents one expression.
Definition: Expr.h:108
Defines the clang::LangOptions interface.
void setDecompositionBindings(SourceLocation LSquareLoc, ArrayRef< DecompositionDeclarator::Binding > Bindings, SourceLocation RSquareLoc)
Set the decomposition bindings for this declarator.
Definition: DeclSpec.cpp:280
unsigned SymbolLocations[3]
The source locations of the individual tokens that name the operator, e.g., the "new", "[", and "]" tokens in operator new [].
Definition: DeclSpec.h:964
This file defines the classes used to store parsed information about declaration-specifiers and decla...
DeclaratorChunk::ParamInfo InlineParams[16]
InlineParams - This is a local array used for the first function decl chunk to avoid going to the hea...
Definition: DeclSpec.h:1834
const Expr * getExpr() const
Definition: DeclCXX.h:2010
static const TST TST_decimal64
Definition: DeclSpec.h:290
Defines the clang::TypeLoc interface and its subclasses.
UnqualifiedIdKind getKind() const
Determine what kind of name we have.
Definition: DeclSpec.h:1026
CachedTokens * ExceptionSpecTokens
Pointer to the cached tokens for an exception-specification that has not yet been parsed...
Definition: DeclSpec.h:1343
SourceLocation Loc
Loc - The place where this type was defined.
Definition: DeclSpec.h:1164
static const TST TST_int
Definition: DeclSpec.h:279
bool isInvalid() const
Definition: Ownership.h:166
SourceLocation getEnd() const
bool SetTypeSpecSign(TSS S, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:692
static const TST TST_half
Definition: DeclSpec.h:281
Wraps an identifier and optional source location for the identifier.
Definition: ParsedAttr.h:94
bool isUsable() const
Definition: Ownership.h:167
static bool BadSpecifier(T TNew, T TPrev, const char *&PrevSpec, unsigned &DiagID, bool IsExtension=true)
Definition: DeclSpec.cpp:454
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:708
bool isValid() const
Determine whether this unqualified-id refers to a valid name.
Definition: DeclSpec.h:1020
UnionParsedType TrailingReturnType
If HasTrailingReturnType is true, this is the trailing return type specified.
Definition: DeclSpec.h:1353
bool SetTypeSpecWidth(TSW W, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
These methods set the specified attribute of the DeclSpec, but return true and ignore the request if ...
Definition: DeclSpec.cpp:665
TypeAndRange * Exceptions
Pointer to a new[]&#39;d array of TypeAndRange objects that contain the types in the function&#39;s dynamic e...
Definition: DeclSpec.h:1335
static const TST TST_char32
Definition: DeclSpec.h:278
noexcept(expression), evals to &#39;false&#39;
static const TST TST_fract
Definition: DeclSpec.h:286
unsigned Bool
Whether we can use &#39;bool&#39; rather than &#39;_Bool&#39; (even if the language doesn&#39;t actually have &#39;bool&#39;...
bool isCtorOrDtor()
Returns true if this declares a constructor or a destructor.
Definition: DeclSpec.cpp:404
Kind
ActionResult - This structure is used while parsing/acting on expressions, stmts, etc...
Definition: Ownership.h:153
static const TST TST_float16
Definition: DeclSpec.h:284
Encodes a location in the source.
static const TST TST_auto_type
Definition: DeclSpec.h:304
FunctionTypeInfo Fun
Definition: DeclSpec.h:1530
static const TST TST_union
Definition: DeclSpec.h:293
bool SetStorageClassSpec(Sema &S, SCS SC, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
These methods set the specified attribute of the DeclSpec and return false if there was no error...
Definition: DeclSpec.cpp:588
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
AttributeFactory * QualAttrFactory
AtttibuteFactory for the MethodQualifiers.
Definition: DeclSpec.h:1329
void forEachCVRUQualifier(llvm::function_ref< void(TQ, StringRef, SourceLocation)> Handle)
This method calls the passed in handler on each CVRU qual being set.
Definition: DeclSpec.cpp:409
static const TST TST_typeofType
Definition: DeclSpec.h:298
bool isInvalid() const
Determine whether this unqualified-id refers to an invalid name.
Definition: DeclSpec.h:1023
bool isStaticMember()
Returns true if this declares a static member.
Definition: DeclSpec.cpp:396
bool SetTypeAltiVecVector(bool isAltiVecVector, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:824
static const TST TST_decltype_auto
Definition: DeclSpec.h:301
bool setModulePrivateSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1025
static bool isStaticOverloadedOperator(OverloadedOperatorKind OOK)
Returns true if the given operator is implicitly static in a record context.
Definition: DeclCXX.h:2144
Dataflow Directional Tag Classes.
ConstexprSpecKind
Define the kind of constexpr specifier.
Definition: Specifiers.h:32
bool isValid() const
Return true if this is a valid SourceLocation object.
static const TST TST_decltype
Definition: DeclSpec.h:300
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:21
static const TST TST_auto
Definition: DeclSpec.h:303
static const TST TST_void
Definition: DeclSpec.h:273
unsigned isVariadic
isVariadic - If this function has a prototype, and if that proto ends with &#39;,...)&#39;, this is true.
Definition: DeclSpec.h:1268
SourceLocation RAngleLoc
The location of the &#39;>&#39; after the template argument list.
static const TST TST_int128
Definition: DeclSpec.h:280
unsigned DeleteParams
DeleteParams - If this is true, we need to delete[] Params.
Definition: DeclSpec.h:1281
bool isMissingDeclaratorOk()
Checks if this DeclSpec can stand alone, without a Declarator.
Definition: DeclSpec.cpp:1364
static FixItHint CreateRemoval(CharSourceRange RemoveRange)
Create a code modification hint that removes the given source range.
Definition: Diagnostic.h:117
void takeAllFrom(AttributePool &pool)
Take the given pool&#39;s allocations and add them to this pool.
Definition: ParsedAttr.h:725
static const TST TST_unspecified
Definition: DeclSpec.h:272
virtual bool hasFeature(StringRef Feature) const
Determine whether the given target has the given feature.
Definition: TargetInfo.h:1115
void forEachQualifier(llvm::function_ref< void(TQ, StringRef, SourceLocation)> Handle)
This method calls the passed in handler on each qual being set.
Definition: DeclSpec.cpp:421
bool SetSpecifier(Specifier VS, SourceLocation Loc, const char *&PrevSpec)
Definition: DeclSpec.cpp:1385
static const TST TST_decimal128
Definition: DeclSpec.h:291
unsigned getTypeQualifiers() const
getTypeQualifiers - Return a set of TQs.
Definition: DeclSpec.h:538
static const TSCS TSCS___thread
Definition: DeclSpec.h:247
unsigned hasPrototype
hasPrototype - This is true if the function had at least one typed parameter.
Definition: DeclSpec.h:1263
unsigned LParenLoc
The location of the left parenthesis in the source.
Definition: DeclSpec.h:1288
bool isFunctionType() const
Definition: Type.h:6347
bool SetStorageClassSpecThread(TSCS TSC, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:651
void setOperatorFunctionId(SourceLocation OperatorLoc, OverloadedOperatorKind Op, SourceLocation SymbolLocations[3])
Specify that this unqualified-id was parsed as an operator-function-id.
Definition: DeclSpec.cpp:1370
static const TST TST_typename
Definition: DeclSpec.h:297
ExceptionSpecificationType
The various types of exception specifications that exist in C++11.
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:91
bool SetTypeSpecType(TST T, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:787
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate.h) and friends (in DeclFriend.h).
void Extend(ASTContext &Context, SourceLocation TemplateKWLoc, TypeLoc TL, SourceLocation ColonColonLoc)
Extend the current nested-name-specifier by another nested-name-specifier component of the form &#39;type...
Definition: DeclSpec.cpp:46
unsigned ExceptionSpecType
ExceptionSpecType - An ExceptionSpecificationType value.
Definition: DeclSpec.h:1278
ThreadStorageClassSpecifier
Thread storage-class-specifier.
Definition: Specifiers.h:221
Captures information about "declaration specifiers".
Definition: DeclSpec.h:228
Represents a C++ struct/union/class.
Definition: DeclCXX.h:300
static const TSCS TSCS_thread_local
Definition: DeclSpec.h:248
bool SetTypeSpecSat(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:811
TypeSpecifierWidth
Specifies the width of a type, e.g., short, long, or long long.
Definition: Specifiers.h:39
static const TST TST_float128
Definition: DeclSpec.h:287
internal::Matcher< NamedDecl > hasName(const std::string &Name)
Matches NamedDecl nodes that have the specified name.
Definition: ASTMatchers.h:2545
static const TST TST_bool
Definition: DeclSpec.h:288
void MakeGlobal(ASTContext &Context, SourceLocation ColonColonLoc)
Turn this (empty) nested-name-specifier into the global nested-name-specifier &#39;::&#39;.
Definition: DeclSpec.cpp:96
SourceManager & getSourceManager() const
Definition: Sema.h:1290
A template-id, e.g., f<int>.
void Finish(Sema &S, const PrintingPolicy &Policy)
Finish - This does final analysis of the declspec, issuing diagnostics for things like "_Imaginary" (...
Definition: DeclSpec.cpp:1064
Defines the clang::TargetInfo interface.
static const TST TST_atomic
Definition: DeclSpec.h:306
static const TST TST_struct
Definition: DeclSpec.h:294
Annotates a diagnostic with some code that should be inserted, removed, or replaced to fix the proble...
Definition: Diagnostic.h:65
ParamInfo - An array of paraminfo objects is allocated whenever a function declarator is parsed...
Definition: DeclSpec.h:1234
A trivial tuple used to represent a source range.
ASTContext & Context
Definition: Sema.h:374
bool SetTypeSpecComplex(TSC C, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:682
This represents a decl that may have a name.
Definition: Decl.h:248
bool SetTypeSpecError()
Definition: DeclSpec.cpp:890
unsigned ExceptionSpecLocEnd
The end location of the exception specification, if any.
Definition: DeclSpec.h:1318
Represents a C++ namespace alias.
Definition: DeclCXX.h:3148
SourceLocation EndLocation
The location of the last token that describes this unqualified-id.
Definition: DeclSpec.h:1005
static const TSCS TSCS__Thread_local
Definition: DeclSpec.h:249
AttributePool & getAttributePool() const
Definition: DeclSpec.h:745
SourceLocation getBegin() const
ParamInfo * Params
Params - This is a pointer to a new[]&#39;d array of ParamInfo objects that describe the parameters speci...
Definition: DeclSpec.h:1323
ParsedAttributes & getAttributes()
Definition: DeclSpec.h:772
noexcept(expression), evals to &#39;true&#39;
bool setFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:929
unsigned isAmbiguous
Can this declaration be a constructor-style initializer?
Definition: DeclSpec.h:1271