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 || FS_explicit_specified ||
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 (T) {
569  case DeclSpec::TQ_unspecified: return "unspecified";
570  case DeclSpec::TQ_const: return "const";
571  case DeclSpec::TQ_restrict: return "restrict";
572  case DeclSpec::TQ_volatile: return "volatile";
573  case DeclSpec::TQ_atomic: return "_Atomic";
574  case DeclSpec::TQ_unaligned: return "__unaligned";
575  }
576  llvm_unreachable("Unknown typespec!");
577 }
578 
580  const char *&PrevSpec,
581  unsigned &DiagID,
582  const PrintingPolicy &Policy) {
583  // OpenCL v1.1 s6.8g: "The extern, static, auto and register storage-class
584  // specifiers are not supported.
585  // It seems sensible to prohibit private_extern too
586  // The cl_clang_storage_class_specifiers extension enables support for
587  // these storage-class specifiers.
588  // OpenCL v1.2 s6.8 changes this to "The auto and register storage-class
589  // specifiers are not supported."
590  // OpenCL C++ v1.0 s2.9 restricts register.
591  if (S.getLangOpts().OpenCL &&
592  !S.getOpenCLOptions().isEnabled("cl_clang_storage_class_specifiers")) {
593  switch (SC) {
594  case SCS_extern:
595  case SCS_private_extern:
596  case SCS_static:
597  if (S.getLangOpts().OpenCLVersion < 120 &&
598  !S.getLangOpts().OpenCLCPlusPlus) {
599  DiagID = diag::err_opencl_unknown_type_specifier;
600  PrevSpec = getSpecifierName(SC);
601  return true;
602  }
603  break;
604  case SCS_auto:
605  case SCS_register:
606  DiagID = diag::err_opencl_unknown_type_specifier;
607  PrevSpec = getSpecifierName(SC);
608  return true;
609  default:
610  break;
611  }
612  }
613 
614  if (StorageClassSpec != SCS_unspecified) {
615  // Maybe this is an attempt to use C++11 'auto' outside of C++11 mode.
616  bool isInvalid = true;
617  if (TypeSpecType == TST_unspecified && S.getLangOpts().CPlusPlus) {
618  if (SC == SCS_auto)
619  return SetTypeSpecType(TST_auto, Loc, PrevSpec, DiagID, Policy);
620  if (StorageClassSpec == SCS_auto) {
621  isInvalid = SetTypeSpecType(TST_auto, StorageClassSpecLoc,
622  PrevSpec, DiagID, Policy);
623  assert(!isInvalid && "auto SCS -> TST recovery failed");
624  }
625  }
626 
627  // Changing storage class is allowed only if the previous one
628  // was the 'extern' that is part of a linkage specification and
629  // the new storage class is 'typedef'.
630  if (isInvalid &&
631  !(SCS_extern_in_linkage_spec &&
632  StorageClassSpec == SCS_extern &&
633  SC == SCS_typedef))
634  return BadSpecifier(SC, (SCS)StorageClassSpec, PrevSpec, DiagID);
635  }
636  StorageClassSpec = SC;
637  StorageClassSpecLoc = Loc;
638  assert((unsigned)SC == StorageClassSpec && "SCS constants overflow bitfield");
639  return false;
640 }
641 
643  const char *&PrevSpec,
644  unsigned &DiagID) {
645  if (ThreadStorageClassSpec != TSCS_unspecified)
646  return BadSpecifier(TSC, (TSCS)ThreadStorageClassSpec, PrevSpec, DiagID);
647 
648  ThreadStorageClassSpec = TSC;
649  ThreadStorageClassSpecLoc = Loc;
650  return false;
651 }
652 
653 /// These methods set the specified attribute of the DeclSpec, but return true
654 /// and ignore the request if invalid (e.g. "extern" then "auto" is
655 /// specified).
657  const char *&PrevSpec,
658  unsigned &DiagID,
659  const PrintingPolicy &Policy) {
660  // Overwrite TSWRange.Begin only if TypeSpecWidth was unspecified, so that
661  // for 'long long' we will keep the source location of the first 'long'.
662  if (TypeSpecWidth == TSW_unspecified)
663  TSWRange.setBegin(Loc);
664  // Allow turning long -> long long.
665  else if (W != TSW_longlong || TypeSpecWidth != TSW_long)
666  return BadSpecifier(W, (TSW)TypeSpecWidth, PrevSpec, DiagID);
667  TypeSpecWidth = W;
668  // Remember location of the last 'long'
669  TSWRange.setEnd(Loc);
670  return false;
671 }
672 
674  const char *&PrevSpec,
675  unsigned &DiagID) {
676  if (TypeSpecComplex != TSC_unspecified)
677  return BadSpecifier(C, (TSC)TypeSpecComplex, PrevSpec, DiagID);
678  TypeSpecComplex = C;
679  TSCLoc = Loc;
680  return false;
681 }
682 
684  const char *&PrevSpec,
685  unsigned &DiagID) {
686  if (TypeSpecSign != TSS_unspecified)
687  return BadSpecifier(S, (TSS)TypeSpecSign, PrevSpec, DiagID);
688  TypeSpecSign = S;
689  TSSLoc = Loc;
690  return false;
691 }
692 
694  const char *&PrevSpec,
695  unsigned &DiagID,
696  ParsedType Rep,
697  const PrintingPolicy &Policy) {
698  return SetTypeSpecType(T, Loc, Loc, PrevSpec, DiagID, Rep, Policy);
699 }
700 
702  SourceLocation TagNameLoc,
703  const char *&PrevSpec,
704  unsigned &DiagID,
705  ParsedType Rep,
706  const PrintingPolicy &Policy) {
707  assert(isTypeRep(T) && "T does not store a type");
708  assert(Rep && "no type provided!");
709  if (TypeSpecType != TST_unspecified) {
710  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
711  DiagID = diag::err_invalid_decl_spec_combination;
712  return true;
713  }
714  TypeSpecType = T;
715  TypeRep = Rep;
716  TSTLoc = TagKwLoc;
717  TSTNameLoc = TagNameLoc;
718  TypeSpecOwned = false;
719  return false;
720 }
721 
723  const char *&PrevSpec,
724  unsigned &DiagID,
725  Expr *Rep,
726  const PrintingPolicy &Policy) {
727  assert(isExprRep(T) && "T does not store an expr");
728  assert(Rep && "no expression provided!");
729  if (TypeSpecType != TST_unspecified) {
730  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
731  DiagID = diag::err_invalid_decl_spec_combination;
732  return true;
733  }
734  TypeSpecType = T;
735  ExprRep = Rep;
736  TSTLoc = Loc;
737  TSTNameLoc = Loc;
738  TypeSpecOwned = false;
739  return false;
740 }
741 
743  const char *&PrevSpec,
744  unsigned &DiagID,
745  Decl *Rep, bool Owned,
746  const PrintingPolicy &Policy) {
747  return SetTypeSpecType(T, Loc, Loc, PrevSpec, DiagID, Rep, Owned, Policy);
748 }
749 
751  SourceLocation TagNameLoc,
752  const char *&PrevSpec,
753  unsigned &DiagID,
754  Decl *Rep, bool Owned,
755  const PrintingPolicy &Policy) {
756  assert(isDeclRep(T) && "T does not store a decl");
757  // Unlike the other cases, we don't assert that we actually get a decl.
758 
759  if (TypeSpecType != TST_unspecified) {
760  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
761  DiagID = diag::err_invalid_decl_spec_combination;
762  return true;
763  }
764  TypeSpecType = T;
765  DeclRep = Rep;
766  TSTLoc = TagKwLoc;
767  TSTNameLoc = TagNameLoc;
768  TypeSpecOwned = Owned && Rep != nullptr;
769  return false;
770 }
771 
773  const char *&PrevSpec,
774  unsigned &DiagID,
775  const PrintingPolicy &Policy) {
776  assert(!isDeclRep(T) && !isTypeRep(T) && !isExprRep(T) &&
777  "rep required for these type-spec kinds!");
778  if (TypeSpecType != TST_unspecified) {
779  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
780  DiagID = diag::err_invalid_decl_spec_combination;
781  return true;
782  }
783  TSTLoc = Loc;
784  TSTNameLoc = Loc;
785  if (TypeAltiVecVector && (T == TST_bool) && !TypeAltiVecBool) {
786  TypeAltiVecBool = true;
787  return false;
788  }
789  TypeSpecType = T;
790  TypeSpecOwned = false;
791  return false;
792 }
793 
794 bool DeclSpec::SetTypeSpecSat(SourceLocation Loc, const char *&PrevSpec,
795  unsigned &DiagID) {
796  // Cannot set twice
797  if (TypeSpecSat) {
798  DiagID = diag::warn_duplicate_declspec;
799  PrevSpec = "_Sat";
800  return true;
801  }
802  TypeSpecSat = true;
803  TSSatLoc = Loc;
804  return false;
805 }
806 
807 bool DeclSpec::SetTypeAltiVecVector(bool isAltiVecVector, SourceLocation Loc,
808  const char *&PrevSpec, unsigned &DiagID,
809  const PrintingPolicy &Policy) {
810  if (TypeSpecType != TST_unspecified) {
811  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
812  DiagID = diag::err_invalid_vector_decl_spec_combination;
813  return true;
814  }
815  TypeAltiVecVector = isAltiVecVector;
816  AltiVecLoc = Loc;
817  return false;
818 }
819 
820 bool DeclSpec::SetTypePipe(bool isPipe, SourceLocation Loc,
821  const char *&PrevSpec, unsigned &DiagID,
822  const PrintingPolicy &Policy) {
823 
824  if (TypeSpecType != TST_unspecified) {
825  PrevSpec = DeclSpec::getSpecifierName((TST)TypeSpecType, Policy);
826  DiagID = diag::err_invalid_decl_spec_combination;
827  return true;
828  }
829 
830  if (isPipe) {
831  TypeSpecPipe = TSP_pipe;
832  }
833  return false;
834 }
835 
836 bool DeclSpec::SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc,
837  const char *&PrevSpec, unsigned &DiagID,
838  const PrintingPolicy &Policy) {
839  if (!TypeAltiVecVector || TypeAltiVecPixel ||
840  (TypeSpecType != TST_unspecified)) {
841  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
842  DiagID = diag::err_invalid_pixel_decl_spec_combination;
843  return true;
844  }
845  TypeAltiVecPixel = isAltiVecPixel;
846  TSTLoc = Loc;
847  TSTNameLoc = Loc;
848  return false;
849 }
850 
851 bool DeclSpec::SetTypeAltiVecBool(bool isAltiVecBool, SourceLocation Loc,
852  const char *&PrevSpec, unsigned &DiagID,
853  const PrintingPolicy &Policy) {
854  if (!TypeAltiVecVector || TypeAltiVecBool ||
855  (TypeSpecType != TST_unspecified)) {
856  PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
857  DiagID = diag::err_invalid_vector_bool_decl_spec;
858  return true;
859  }
860  TypeAltiVecBool = isAltiVecBool;
861  TSTLoc = Loc;
862  TSTNameLoc = Loc;
863  return false;
864 }
865 
867  TypeSpecType = TST_error;
868  TypeSpecOwned = false;
869  TSTLoc = SourceLocation();
870  TSTNameLoc = SourceLocation();
871  return false;
872 }
873 
874 bool DeclSpec::SetTypeQual(TQ T, SourceLocation Loc, const char *&PrevSpec,
875  unsigned &DiagID, const LangOptions &Lang) {
876  // Duplicates are permitted in C99 onwards, but are not permitted in C89 or
877  // C++. However, since this is likely not what the user intended, we will
878  // always warn. We do not need to set the qualifier's location since we
879  // already have it.
880  if (TypeQualifiers & T) {
881  bool IsExtension = true;
882  if (Lang.C99)
883  IsExtension = false;
884  return BadSpecifier(T, T, PrevSpec, DiagID, IsExtension);
885  }
886 
887  return SetTypeQual(T, Loc);
888 }
889 
891  TypeQualifiers |= T;
892 
893  switch (T) {
894  case TQ_unspecified: break;
895  case TQ_const: TQ_constLoc = Loc; return false;
896  case TQ_restrict: TQ_restrictLoc = Loc; return false;
897  case TQ_volatile: TQ_volatileLoc = Loc; return false;
898  case TQ_unaligned: TQ_unalignedLoc = Loc; return false;
899  case TQ_atomic: TQ_atomicLoc = Loc; return false;
900  }
901 
902  llvm_unreachable("Unknown type qualifier!");
903 }
904 
905 bool DeclSpec::setFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec,
906  unsigned &DiagID) {
907  // 'inline inline' is ok. However, since this is likely not what the user
908  // intended, we will always warn, similar to duplicates of type qualifiers.
909  if (FS_inline_specified) {
910  DiagID = diag::warn_duplicate_declspec;
911  PrevSpec = "inline";
912  return true;
913  }
914  FS_inline_specified = true;
915  FS_inlineLoc = Loc;
916  return false;
917 }
918 
919 bool DeclSpec::setFunctionSpecForceInline(SourceLocation Loc, const char *&PrevSpec,
920  unsigned &DiagID) {
921  if (FS_forceinline_specified) {
922  DiagID = diag::warn_duplicate_declspec;
923  PrevSpec = "__forceinline";
924  return true;
925  }
926  FS_forceinline_specified = true;
927  FS_forceinlineLoc = Loc;
928  return false;
929 }
930 
932  const char *&PrevSpec,
933  unsigned &DiagID) {
934  // 'virtual virtual' is ok, but warn as this is likely not what the user
935  // intended.
936  if (FS_virtual_specified) {
937  DiagID = diag::warn_duplicate_declspec;
938  PrevSpec = "virtual";
939  return true;
940  }
941  FS_virtual_specified = true;
942  FS_virtualLoc = Loc;
943  return false;
944 }
945 
947  const char *&PrevSpec,
948  unsigned &DiagID) {
949  // 'explicit explicit' is ok, but warn as this is likely not what the user
950  // intended.
951  if (FS_explicit_specified) {
952  DiagID = diag::warn_duplicate_declspec;
953  PrevSpec = "explicit";
954  return true;
955  }
956  FS_explicit_specified = true;
957  FS_explicitLoc = Loc;
958  return false;
959 }
960 
962  const char *&PrevSpec,
963  unsigned &DiagID) {
964  // '_Noreturn _Noreturn' is ok, but warn as this is likely not what the user
965  // intended.
966  if (FS_noreturn_specified) {
967  DiagID = diag::warn_duplicate_declspec;
968  PrevSpec = "_Noreturn";
969  return true;
970  }
971  FS_noreturn_specified = true;
972  FS_noreturnLoc = Loc;
973  return false;
974 }
975 
976 bool DeclSpec::SetFriendSpec(SourceLocation Loc, const char *&PrevSpec,
977  unsigned &DiagID) {
978  if (Friend_specified) {
979  PrevSpec = "friend";
980  // Keep the later location, so that we can later diagnose ill-formed
981  // declarations like 'friend class X friend;'. Per [class.friend]p3,
982  // 'friend' must be the first token in a friend declaration that is
983  // not a function declaration.
984  FriendLoc = Loc;
985  DiagID = diag::warn_duplicate_declspec;
986  return true;
987  }
988 
989  Friend_specified = true;
990  FriendLoc = Loc;
991  return false;
992 }
993 
994 bool DeclSpec::setModulePrivateSpec(SourceLocation Loc, const char *&PrevSpec,
995  unsigned &DiagID) {
996  if (isModulePrivateSpecified()) {
997  PrevSpec = "__module_private__";
998  DiagID = diag::ext_warn_duplicate_declspec;
999  return true;
1000  }
1001 
1002  ModulePrivateLoc = Loc;
1003  return false;
1004 }
1005 
1006 bool DeclSpec::SetConstexprSpec(SourceLocation Loc, const char *&PrevSpec,
1007  unsigned &DiagID) {
1008  // 'constexpr constexpr' is ok, but warn as this is likely not what the user
1009  // intended.
1010  if (Constexpr_specified) {
1011  DiagID = diag::warn_duplicate_declspec;
1012  PrevSpec = "constexpr";
1013  return true;
1014  }
1015  Constexpr_specified = true;
1016  ConstexprLoc = Loc;
1017  return false;
1018 }
1019 
1020 void DeclSpec::SaveWrittenBuiltinSpecs() {
1021  writtenBS.Sign = getTypeSpecSign();
1022  writtenBS.Width = getTypeSpecWidth();
1023  writtenBS.Type = getTypeSpecType();
1024  // Search the list of attributes for the presence of a mode attribute.
1025  writtenBS.ModeAttr = getAttributes().hasAttribute(ParsedAttr::AT_Mode);
1026 }
1027 
1028 /// Finish - This does final analysis of the declspec, rejecting things like
1029 /// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
1030 /// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
1031 /// DeclSpec is guaranteed self-consistent, even if an error occurred.
1032 void DeclSpec::Finish(Sema &S, const PrintingPolicy &Policy) {
1033  // Before possibly changing their values, save specs as written.
1034  SaveWrittenBuiltinSpecs();
1035 
1036  // Check the type specifier components first.
1037 
1038  // If decltype(auto) is used, no other type specifiers are permitted.
1039  if (TypeSpecType == TST_decltype_auto &&
1040  (TypeSpecWidth != TSW_unspecified ||
1041  TypeSpecComplex != TSC_unspecified ||
1042  TypeSpecSign != TSS_unspecified ||
1043  TypeAltiVecVector || TypeAltiVecPixel || TypeAltiVecBool ||
1044  TypeQualifiers)) {
1045  const unsigned NumLocs = 9;
1046  SourceLocation ExtraLocs[NumLocs] = {
1047  TSWRange.getBegin(), TSCLoc, TSSLoc,
1048  AltiVecLoc, TQ_constLoc, TQ_restrictLoc,
1049  TQ_volatileLoc, TQ_atomicLoc, TQ_unalignedLoc};
1050  FixItHint Hints[NumLocs];
1051  SourceLocation FirstLoc;
1052  for (unsigned I = 0; I != NumLocs; ++I) {
1053  if (ExtraLocs[I].isValid()) {
1054  if (FirstLoc.isInvalid() ||
1056  FirstLoc))
1057  FirstLoc = ExtraLocs[I];
1058  Hints[I] = FixItHint::CreateRemoval(ExtraLocs[I]);
1059  }
1060  }
1061  TypeSpecWidth = TSW_unspecified;
1062  TypeSpecComplex = TSC_unspecified;
1063  TypeSpecSign = TSS_unspecified;
1064  TypeAltiVecVector = TypeAltiVecPixel = TypeAltiVecBool = false;
1065  TypeQualifiers = 0;
1066  S.Diag(TSTLoc, diag::err_decltype_auto_cannot_be_combined)
1067  << Hints[0] << Hints[1] << Hints[2] << Hints[3]
1068  << Hints[4] << Hints[5] << Hints[6] << Hints[7];
1069  }
1070 
1071  // Validate and finalize AltiVec vector declspec.
1072  if (TypeAltiVecVector) {
1073  if (TypeAltiVecBool) {
1074  // Sign specifiers are not allowed with vector bool. (PIM 2.1)
1075  if (TypeSpecSign != TSS_unspecified) {
1076  S.Diag(TSSLoc, diag::err_invalid_vector_bool_decl_spec)
1077  << getSpecifierName((TSS)TypeSpecSign);
1078  }
1079 
1080  // Only char/int are valid with vector bool. (PIM 2.1)
1081  if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
1082  (TypeSpecType != TST_int)) || TypeAltiVecPixel) {
1083  S.Diag(TSTLoc, diag::err_invalid_vector_bool_decl_spec)
1084  << (TypeAltiVecPixel ? "__pixel" :
1085  getSpecifierName((TST)TypeSpecType, Policy));
1086  }
1087 
1088  // Only 'short' and 'long long' are valid with vector bool. (PIM 2.1)
1089  if ((TypeSpecWidth != TSW_unspecified) && (TypeSpecWidth != TSW_short) &&
1090  (TypeSpecWidth != TSW_longlong))
1091  S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_bool_decl_spec)
1092  << getSpecifierName((TSW)TypeSpecWidth);
1093 
1094  // vector bool long long requires VSX support or ZVector.
1095  if ((TypeSpecWidth == TSW_longlong) &&
1096  (!S.Context.getTargetInfo().hasFeature("vsx")) &&
1097  (!S.Context.getTargetInfo().hasFeature("power8-vector")) &&
1098  !S.getLangOpts().ZVector)
1099  S.Diag(TSTLoc, diag::err_invalid_vector_long_long_decl_spec);
1100 
1101  // Elements of vector bool are interpreted as unsigned. (PIM 2.1)
1102  if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
1103  (TypeSpecWidth != TSW_unspecified))
1104  TypeSpecSign = TSS_unsigned;
1105  } else if (TypeSpecType == TST_double) {
1106  // vector long double and vector long long double are never allowed.
1107  // vector double is OK for Power7 and later, and ZVector.
1108  if (TypeSpecWidth == TSW_long || TypeSpecWidth == TSW_longlong)
1109  S.Diag(TSWRange.getBegin(),
1110  diag::err_invalid_vector_long_double_decl_spec);
1111  else if (!S.Context.getTargetInfo().hasFeature("vsx") &&
1112  !S.getLangOpts().ZVector)
1113  S.Diag(TSTLoc, diag::err_invalid_vector_double_decl_spec);
1114  } else if (TypeSpecType == TST_float) {
1115  // vector float is unsupported for ZVector unless we have the
1116  // vector-enhancements facility 1 (ISA revision 12).
1117  if (S.getLangOpts().ZVector &&
1118  !S.Context.getTargetInfo().hasFeature("arch12"))
1119  S.Diag(TSTLoc, diag::err_invalid_vector_float_decl_spec);
1120  } else if (TypeSpecWidth == TSW_long) {
1121  // vector long is unsupported for ZVector and deprecated for AltiVec.
1122  if (S.getLangOpts().ZVector)
1123  S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_long_decl_spec);
1124  else
1125  S.Diag(TSWRange.getBegin(),
1126  diag::warn_vector_long_decl_spec_combination)
1127  << getSpecifierName((TST)TypeSpecType, Policy);
1128  }
1129 
1130  if (TypeAltiVecPixel) {
1131  //TODO: perform validation
1132  TypeSpecType = TST_int;
1133  TypeSpecSign = TSS_unsigned;
1134  TypeSpecWidth = TSW_short;
1135  TypeSpecOwned = false;
1136  }
1137  }
1138 
1139  bool IsFixedPointType =
1140  TypeSpecType == TST_accum || TypeSpecType == TST_fract;
1141 
1142  // signed/unsigned are only valid with int/char/wchar_t/_Accum.
1143  if (TypeSpecSign != TSS_unspecified) {
1144  if (TypeSpecType == TST_unspecified)
1145  TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
1146  else if (TypeSpecType != TST_int && TypeSpecType != TST_int128 &&
1147  TypeSpecType != TST_char && TypeSpecType != TST_wchar &&
1148  !IsFixedPointType) {
1149  S.Diag(TSSLoc, diag::err_invalid_sign_spec)
1150  << getSpecifierName((TST)TypeSpecType, Policy);
1151  // signed double -> double.
1152  TypeSpecSign = TSS_unspecified;
1153  }
1154  }
1155 
1156  // Validate the width of the type.
1157  switch (TypeSpecWidth) {
1158  case TSW_unspecified: break;
1159  case TSW_short: // short int
1160  case TSW_longlong: // long long int
1161  if (TypeSpecType == TST_unspecified)
1162  TypeSpecType = TST_int; // short -> short int, long long -> long long int.
1163  else if (!(TypeSpecType == TST_int ||
1164  (IsFixedPointType && TypeSpecWidth != TSW_longlong))) {
1165  S.Diag(TSWRange.getBegin(), diag::err_invalid_width_spec)
1166  << (int)TypeSpecWidth << getSpecifierName((TST)TypeSpecType, Policy);
1167  TypeSpecType = TST_int;
1168  TypeSpecSat = false;
1169  TypeSpecOwned = false;
1170  }
1171  break;
1172  case TSW_long: // long double, long int
1173  if (TypeSpecType == TST_unspecified)
1174  TypeSpecType = TST_int; // long -> long int.
1175  else if (TypeSpecType != TST_int && TypeSpecType != TST_double &&
1176  !IsFixedPointType) {
1177  S.Diag(TSWRange.getBegin(), diag::err_invalid_width_spec)
1178  << (int)TypeSpecWidth << getSpecifierName((TST)TypeSpecType, Policy);
1179  TypeSpecType = TST_int;
1180  TypeSpecSat = false;
1181  TypeSpecOwned = false;
1182  }
1183  break;
1184  }
1185 
1186  // TODO: if the implementation does not implement _Complex or _Imaginary,
1187  // disallow their use. Need information about the backend.
1188  if (TypeSpecComplex != TSC_unspecified) {
1189  if (TypeSpecType == TST_unspecified) {
1190  S.Diag(TSCLoc, diag::ext_plain_complex)
1192  S.getLocForEndOfToken(getTypeSpecComplexLoc()),
1193  " double");
1194  TypeSpecType = TST_double; // _Complex -> _Complex double.
1195  } else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
1196  // Note that this intentionally doesn't include _Complex _Bool.
1197  if (!S.getLangOpts().CPlusPlus)
1198  S.Diag(TSTLoc, diag::ext_integer_complex);
1199  } else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
1200  S.Diag(TSCLoc, diag::err_invalid_complex_spec)
1201  << getSpecifierName((TST)TypeSpecType, Policy);
1202  TypeSpecComplex = TSC_unspecified;
1203  }
1204  }
1205 
1206  // C11 6.7.1/3, C++11 [dcl.stc]p1, GNU TLS: __thread, thread_local and
1207  // _Thread_local can only appear with the 'static' and 'extern' storage class
1208  // specifiers. We also allow __private_extern__ as an extension.
1209  if (ThreadStorageClassSpec != TSCS_unspecified) {
1210  switch (StorageClassSpec) {
1211  case SCS_unspecified:
1212  case SCS_extern:
1213  case SCS_private_extern:
1214  case SCS_static:
1215  break;
1216  default:
1218  getThreadStorageClassSpecLoc(), getStorageClassSpecLoc()))
1219  S.Diag(getStorageClassSpecLoc(),
1220  diag::err_invalid_decl_spec_combination)
1221  << DeclSpec::getSpecifierName(getThreadStorageClassSpec())
1222  << SourceRange(getThreadStorageClassSpecLoc());
1223  else
1224  S.Diag(getThreadStorageClassSpecLoc(),
1225  diag::err_invalid_decl_spec_combination)
1226  << DeclSpec::getSpecifierName(getStorageClassSpec())
1227  << SourceRange(getStorageClassSpecLoc());
1228  // Discard the thread storage class specifier to recover.
1229  ThreadStorageClassSpec = TSCS_unspecified;
1230  ThreadStorageClassSpecLoc = SourceLocation();
1231  }
1232  }
1233 
1234  // If no type specifier was provided and we're parsing a language where
1235  // the type specifier is not optional, but we got 'auto' as a storage
1236  // class specifier, then assume this is an attempt to use C++0x's 'auto'
1237  // type specifier.
1238  if (S.getLangOpts().CPlusPlus &&
1239  TypeSpecType == TST_unspecified && StorageClassSpec == SCS_auto) {
1240  TypeSpecType = TST_auto;
1241  StorageClassSpec = SCS_unspecified;
1242  TSTLoc = TSTNameLoc = StorageClassSpecLoc;
1243  StorageClassSpecLoc = SourceLocation();
1244  }
1245  // Diagnose if we've recovered from an ill-formed 'auto' storage class
1246  // specifier in a pre-C++11 dialect of C++.
1247  if (!S.getLangOpts().CPlusPlus11 && TypeSpecType == TST_auto)
1248  S.Diag(TSTLoc, diag::ext_auto_type_specifier);
1249  if (S.getLangOpts().CPlusPlus && !S.getLangOpts().CPlusPlus11 &&
1250  StorageClassSpec == SCS_auto)
1251  S.Diag(StorageClassSpecLoc, diag::warn_auto_storage_class)
1252  << FixItHint::CreateRemoval(StorageClassSpecLoc);
1253  if (TypeSpecType == TST_char8)
1254  S.Diag(TSTLoc, diag::warn_cxx17_compat_unicode_type);
1255  else if (TypeSpecType == TST_char16 || TypeSpecType == TST_char32)
1256  S.Diag(TSTLoc, diag::warn_cxx98_compat_unicode_type)
1257  << (TypeSpecType == TST_char16 ? "char16_t" : "char32_t");
1258  if (Constexpr_specified)
1259  S.Diag(ConstexprLoc, diag::warn_cxx98_compat_constexpr);
1260 
1261  // C++ [class.friend]p6:
1262  // No storage-class-specifier shall appear in the decl-specifier-seq
1263  // of a friend declaration.
1264  if (isFriendSpecified() &&
1265  (getStorageClassSpec() || getThreadStorageClassSpec())) {
1266  SmallString<32> SpecName;
1267  SourceLocation SCLoc;
1268  FixItHint StorageHint, ThreadHint;
1269 
1270  if (DeclSpec::SCS SC = getStorageClassSpec()) {
1271  SpecName = getSpecifierName(SC);
1272  SCLoc = getStorageClassSpecLoc();
1273  StorageHint = FixItHint::CreateRemoval(SCLoc);
1274  }
1275 
1276  if (DeclSpec::TSCS TSC = getThreadStorageClassSpec()) {
1277  if (!SpecName.empty()) SpecName += " ";
1278  SpecName += getSpecifierName(TSC);
1279  SCLoc = getThreadStorageClassSpecLoc();
1280  ThreadHint = FixItHint::CreateRemoval(SCLoc);
1281  }
1282 
1283  S.Diag(SCLoc, diag::err_friend_decl_spec)
1284  << SpecName << StorageHint << ThreadHint;
1285 
1286  ClearStorageClassSpecs();
1287  }
1288 
1289  // C++11 [dcl.fct.spec]p5:
1290  // The virtual specifier shall be used only in the initial
1291  // declaration of a non-static class member function;
1292  // C++11 [dcl.fct.spec]p6:
1293  // The explicit specifier shall be used only in the declaration of
1294  // a constructor or conversion function within its class
1295  // definition;
1296  if (isFriendSpecified() && (isVirtualSpecified() || isExplicitSpecified())) {
1297  StringRef Keyword;
1298  SourceLocation SCLoc;
1299 
1300  if (isVirtualSpecified()) {
1301  Keyword = "virtual";
1302  SCLoc = getVirtualSpecLoc();
1303  } else {
1304  Keyword = "explicit";
1305  SCLoc = getExplicitSpecLoc();
1306  }
1307 
1308  FixItHint Hint = FixItHint::CreateRemoval(SCLoc);
1309  S.Diag(SCLoc, diag::err_friend_decl_spec)
1310  << Keyword << Hint;
1311 
1312  FS_virtual_specified = FS_explicit_specified = false;
1313  FS_virtualLoc = FS_explicitLoc = SourceLocation();
1314  }
1315 
1316  assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
1317 
1318  // Okay, now we can infer the real type.
1319 
1320  // TODO: return "auto function" and other bad things based on the real type.
1321 
1322  // 'data definition has no type or storage class'?
1323 }
1324 
1326  TST tst = getTypeSpecType();
1327  return isDeclRep(tst) && getRepAsDecl() != nullptr &&
1328  StorageClassSpec != DeclSpec::SCS_typedef;
1329 }
1330 
1333  SourceLocation SymbolLocations[3]) {
1335  StartLocation = OperatorLoc;
1336  EndLocation = OperatorLoc;
1338  for (unsigned I = 0; I != 3; ++I) {
1339  OperatorFunctionId.SymbolLocations[I] = SymbolLocations[I].getRawEncoding();
1340 
1341  if (SymbolLocations[I].isValid())
1342  EndLocation = SymbolLocations[I];
1343  }
1344 }
1345 
1347  const char *&PrevSpec) {
1348  if (!FirstLocation.isValid())
1349  FirstLocation = Loc;
1350  LastLocation = Loc;
1351  LastSpecifier = VS;
1352 
1353  if (Specifiers & VS) {
1354  PrevSpec = getSpecifierName(VS);
1355  return true;
1356  }
1357 
1358  Specifiers |= VS;
1359 
1360  switch (VS) {
1361  default: llvm_unreachable("Unknown specifier!");
1362  case VS_Override: VS_overrideLoc = Loc; break;
1363  case VS_GNU_Final:
1364  case VS_Sealed:
1365  case VS_Final: VS_finalLoc = Loc; break;
1366  }
1367 
1368  return false;
1369 }
1370 
1372  switch (VS) {
1373  default: llvm_unreachable("Unknown specifier");
1374  case VS_Override: return "override";
1375  case VS_Final: return "final";
1376  case VS_GNU_Final: return "__final";
1377  case VS_Sealed: return "sealed";
1378  }
1379 }
Defines the clang::ASTContext interface.
unsigned MutableLoc
The location of the &#39;mutable&#39; qualifer in a lambda-declarator, if any.
Definition: DeclSpec.h:1301
unsigned RefQualifierIsLValueRef
Whether the ref-qualifier (if any) is an lvalue reference.
Definition: DeclSpec.h:1264
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:637
SourceLocation StartLocation
The location of the first token that describes this unqualified-id, which will be the location of the...
Definition: DeclSpec.h:991
SourceRange getSourceRange() const LLVM_READONLY
Retrieve the source range covering the entirety of this nested-name-specifier.
SizeType size() const
Definition: ParsedAttr.h:765
bool SetTypeQual(TQ T, SourceLocation Loc)
Definition: DeclSpec.cpp:890
static const TST TST_wchar
Definition: DeclSpec.h:274
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:961
unsigned MSWChar
When true, print the built-in wchar_t type as __wchar_t.
static const TST TST_typeofExpr
Definition: DeclSpec.h:298
SemaDiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID)
Emit a diagnostic.
Definition: Sema.h:1307
static const TST TST_char16
Definition: DeclSpec.h:276
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:86
unsigned ExceptionSpecLocBeg
The beginning location of the exception specification, if any.
Definition: DeclSpec.h:1304
bool SetConstexprSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1006
unsigned EllipsisLoc
When isVariadic is true, the location of the ellipsis in the source.
Definition: DeclSpec.h:1280
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.
One instance of this struct is used for each type in a declarator that is parsed. ...
Definition: DeclSpec.h:1147
Represent a C++ namespace.
Definition: Decl.h:514
SourceLocation EndLoc
EndLoc - If valid, the place where this chunck ends.
Definition: DeclSpec.h:1155
SourceLocation getLocForEndOfToken(SourceLocation Loc, unsigned Offset=0)
Calls Lexer::getLocForEndOfToken()
Definition: Sema.cpp:45
unsigned NumExceptionsOrDecls
NumExceptionsOrDecls - This is the number of types in the dynamic-exception-decl, if the function has...
Definition: DeclSpec.h:1292
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:1337
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:689
static const char * getSpecifierName(Specifier VS)
Definition: DeclSpec.cpp:1371
bool SetTypeAltiVecBool(bool isAltiVecBool, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:851
An overloaded operator name, e.g., operator+.
unsigned RefQualifierLoc
The location of the ref-qualifier, if any.
Definition: DeclSpec.h:1297
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:245
static const TST TST_underlyingType
Definition: DeclSpec.h:301
Information about one declarator, including the parsed type information and the identifier.
Definition: DeclSpec.h:1764
bool setFunctionSpecExplicit(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:946
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:44
static const TST TST_interface
Definition: DeclSpec.h:294
static const TST TST_char
Definition: DeclSpec.h:273
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:37
OpenCLOptions & getOpenCLOptions()
Definition: Sema.h:1231
noexcept(expression), value-dependent
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:304
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:985
Expr * NoexceptExpr
Pointer to the expression in the noexcept-specifier of this function, if it has one.
Definition: DeclSpec.h:1328
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:288
static const TST TST_char8
Definition: DeclSpec.h:275
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:32
static const TST TST_class
Definition: DeclSpec.h:295
OverloadedOperatorKind Operator
The kind of overloaded operator.
Definition: DeclSpec.h:944
static const TST TST_double
Definition: DeclSpec.h:282
struct OFI OperatorFunctionId
When Kind == IK_OperatorFunctionId, the overloaded operator that we parsed.
Definition: DeclSpec.h:965
bool setFunctionSpecVirtual(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:931
static const TST TST_error
Definition: DeclSpec.h:309
static const TST TST_enum
Definition: DeclSpec.h:291
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:284
bool SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:836
PtrTy get() const
Definition: Ownership.h:173
bool setFunctionSpecForceInline(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:919
SCS
storage-class-specifier
Definition: DeclSpec.h:231
void takeAllFrom(ParsedAttributes &attrs)
Definition: ParsedAttr.h:861
unsigned HasTrailingReturnType
HasTrailingReturnType - If this is true, a trailing return type was specified.
Definition: DeclSpec.h:1274
bool SetFriendSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:976
unsigned RParenLoc
The location of the right parenthesis in the source.
Definition: DeclSpec.h:1283
bool SetTypePipe(bool isPipe, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:820
bool setFunctionSpecNoreturn(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:961
const LangOptions & getLangOpts() const
Definition: Sema.h:1230
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:281
Sema - This implements semantic analysis and AST building for C.
Definition: Sema.h:277
enum clang::DeclaratorChunk::@215 Kind
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:1315
unsigned NumParams
NumParams - This is the number of formal parameters specified by the declarator.
Definition: DeclSpec.h:1287
bool isEnabled(llvm::StringRef Ext) const
Definition: OpenCLOptions.h:38
SourceLocation getBeginLoc() const
Get the begin source location.
Definition: TypeLoc.cpp:189
This represents one expression.
Definition: Expr.h:106
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:953
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:1823
static const TST TST_decimal64
Definition: DeclSpec.h:289
Defines the clang::TypeLoc interface and its subclasses.
UnqualifiedIdKind getKind() const
Determine what kind of name we have.
Definition: DeclSpec.h:1015
CachedTokens * ExceptionSpecTokens
Pointer to the cached tokens for an exception-specification that has not yet been parsed...
Definition: DeclSpec.h:1332
SourceLocation Loc
Loc - The place where this type was defined.
Definition: DeclSpec.h:1153
static const TST TST_int
Definition: DeclSpec.h:278
bool isInvalid() const
Definition: Ownership.h:169
SourceLocation getEnd() const
bool SetTypeSpecSign(TSS S, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:683
static const TST TST_half
Definition: DeclSpec.h:280
Wraps an identifier and optional source location for the identifier.
Definition: ParsedAttr.h:94
bool isUsable() const
Definition: Ownership.h:170
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:702
bool isValid() const
Determine whether this unqualified-id refers to a valid name.
Definition: DeclSpec.h:1009
UnionParsedType TrailingReturnType
If HasTrailingReturnType is true, this is the trailing return type specified.
Definition: DeclSpec.h:1342
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:656
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:1324
static const TST TST_char32
Definition: DeclSpec.h:277
noexcept(expression), evals to &#39;false&#39;
static const TST TST_fract
Definition: DeclSpec.h:285
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:156
static const TST TST_float16
Definition: DeclSpec.h:283
Encodes a location in the source.
static const TST TST_auto_type
Definition: DeclSpec.h:303
FunctionTypeInfo Fun
Definition: DeclSpec.h:1519
static const TST TST_union
Definition: DeclSpec.h:292
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:579
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
AttributeFactory * QualAttrFactory
AtttibuteFactory for the MethodQualifiers.
Definition: DeclSpec.h:1318
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:297
bool isInvalid() const
Determine whether this unqualified-id refers to an invalid name.
Definition: DeclSpec.h:1012
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:807
static const TST TST_decltype_auto
Definition: DeclSpec.h:300
bool setModulePrivateSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:994
static bool isStaticOverloadedOperator(OverloadedOperatorKind OOK)
Returns true if the given operator is implicitly static in a record context.
Definition: DeclCXX.h:2072
Dataflow Directional Tag Classes.
bool isValid() const
Return true if this is a valid SourceLocation object.
static const TST TST_decltype
Definition: DeclSpec.h:299
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:21
static const TST TST_auto
Definition: DeclSpec.h:302
static const TST TST_void
Definition: DeclSpec.h:272
unsigned isVariadic
isVariadic - If this function has a prototype, and if that proto ends with &#39;,...)&#39;, this is true.
Definition: DeclSpec.h:1257
SourceLocation RAngleLoc
The location of the &#39;>&#39; after the template argument list.
static const TST TST_int128
Definition: DeclSpec.h:279
unsigned DeleteParams
DeleteParams - If this is true, we need to delete[] Params.
Definition: DeclSpec.h:1270
bool isMissingDeclaratorOk()
Checks if this DeclSpec can stand alone, without a Declarator.
Definition: DeclSpec.cpp:1325
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:673
static const TST TST_unspecified
Definition: DeclSpec.h:271
virtual bool hasFeature(StringRef Feature) const
Determine whether the given target has the given feature.
Definition: TargetInfo.h:1080
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:1346
static const TST TST_decimal128
Definition: DeclSpec.h:290
unsigned getTypeQualifiers() const
getTypeQualifiers - Return a set of TQs.
Definition: DeclSpec.h:546
static const TSCS TSCS___thread
Definition: DeclSpec.h:246
unsigned hasPrototype
hasPrototype - This is true if the function had at least one typed parameter.
Definition: DeclSpec.h:1252
unsigned LParenLoc
The location of the left parenthesis in the source.
Definition: DeclSpec.h:1277
bool isFunctionType() const
Definition: Type.h:6294
bool SetStorageClassSpecThread(TSCS TSC, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:642
void setOperatorFunctionId(SourceLocation OperatorLoc, OverloadedOperatorKind Op, SourceLocation SymbolLocations[3])
Specify that this unqualified-id was parsed as an operator-function-id.
Definition: DeclSpec.cpp:1331
static const TST TST_typename
Definition: DeclSpec.h:296
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:772
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:1267
ThreadStorageClassSpecifier
Thread storage-class-specifier.
Definition: Specifiers.h:192
Captures information about "declaration specifiers".
Definition: DeclSpec.h:227
Represents a C++ struct/union/class.
Definition: DeclCXX.h:299
static const TSCS TSCS_thread_local
Definition: DeclSpec.h:247
bool SetTypeSpecSat(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:794
TypeSpecifierWidth
Specifies the width of a type, e.g., short, long, or long long.
Definition: Specifiers.h:24
static const TST TST_float128
Definition: DeclSpec.h:286
internal::Matcher< NamedDecl > hasName(const std::string &Name)
Matches NamedDecl nodes that have the specified name.
Definition: ASTMatchers.h:2525
static const TST TST_bool
Definition: DeclSpec.h:287
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:1235
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:1032
Defines the clang::TargetInfo interface.
static const TST TST_atomic
Definition: DeclSpec.h:305
static const TST TST_struct
Definition: DeclSpec.h:293
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:1223
A trivial tuple used to represent a source range.
ASTContext & Context
Definition: Sema.h:323
bool SetTypeSpecComplex(TSC C, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:673
This represents a decl that may have a name.
Definition: Decl.h:248
bool SetTypeSpecError()
Definition: DeclSpec.cpp:866
unsigned ExceptionSpecLocEnd
The end location of the exception specification, if any.
Definition: DeclSpec.h:1307
Represents a C++ namespace alias.
Definition: DeclCXX.h:3019
SourceLocation EndLocation
The location of the last token that describes this unqualified-id.
Definition: DeclSpec.h:994
static const TSCS TSCS__Thread_local
Definition: DeclSpec.h:248
AttributePool & getAttributePool() const
Definition: DeclSpec.h:734
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:1312
ParsedAttributes & getAttributes()
Definition: DeclSpec.h:761
noexcept(expression), evals to &#39;true&#39;
bool setFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:905
unsigned isAmbiguous
Can this declaration be a constructor-style initializer?
Definition: DeclSpec.h:1260