clang 19.0.0git
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"
15#include "clang/AST/DeclCXX.h"
16#include "clang/AST/Expr.h"
18#include "clang/AST/TypeLoc.h"
24#include "clang/Sema/Sema.h"
26#include "llvm/ADT/STLExtras.h"
27#include "llvm/ADT/SmallString.h"
28#include <cstring>
29using namespace clang;
30
31
33 assert(TemplateId && "NULL template-id annotation?");
34 assert(!TemplateId->isInvalid() &&
35 "should not convert invalid template-ids to unqualified-ids");
36
38 this->TemplateId = TemplateId;
41}
42
44 assert(TemplateId && "NULL template-id annotation?");
45 assert(!TemplateId->isInvalid() &&
46 "should not convert invalid template-ids to unqualified-ids");
47
49 this->TemplateId = TemplateId;
52}
53
54void CXXScopeSpec::Extend(ASTContext &Context, SourceLocation TemplateKWLoc,
55 TypeLoc TL, SourceLocation ColonColonLoc) {
56 Builder.Extend(Context, TemplateKWLoc, TL, ColonColonLoc);
57 if (Range.getBegin().isInvalid())
58 Range.setBegin(TL.getBeginLoc());
59 Range.setEnd(ColonColonLoc);
60
61 assert(Range == Builder.getSourceRange() &&
62 "NestedNameSpecifierLoc range computation incorrect");
63}
64
67 SourceLocation ColonColonLoc) {
68 Builder.Extend(Context, Identifier, IdentifierLoc, ColonColonLoc);
69
70 if (Range.getBegin().isInvalid())
72 Range.setEnd(ColonColonLoc);
73
74 assert(Range == Builder.getSourceRange() &&
75 "NestedNameSpecifierLoc range computation incorrect");
76}
77
79 SourceLocation NamespaceLoc,
80 SourceLocation ColonColonLoc) {
81 Builder.Extend(Context, Namespace, NamespaceLoc, ColonColonLoc);
82
83 if (Range.getBegin().isInvalid())
84 Range.setBegin(NamespaceLoc);
85 Range.setEnd(ColonColonLoc);
86
87 assert(Range == Builder.getSourceRange() &&
88 "NestedNameSpecifierLoc range computation incorrect");
89}
90
92 SourceLocation AliasLoc,
93 SourceLocation ColonColonLoc) {
94 Builder.Extend(Context, Alias, AliasLoc, ColonColonLoc);
95
96 if (Range.getBegin().isInvalid())
97 Range.setBegin(AliasLoc);
98 Range.setEnd(ColonColonLoc);
99
100 assert(Range == Builder.getSourceRange() &&
101 "NestedNameSpecifierLoc range computation incorrect");
102}
103
105 SourceLocation ColonColonLoc) {
106 Builder.MakeGlobal(Context, ColonColonLoc);
107
108 Range = SourceRange(ColonColonLoc);
109
110 assert(Range == Builder.getSourceRange() &&
111 "NestedNameSpecifierLoc range computation incorrect");
112}
113
115 SourceLocation SuperLoc,
116 SourceLocation ColonColonLoc) {
117 Builder.MakeSuper(Context, RD, SuperLoc, ColonColonLoc);
118
119 Range.setBegin(SuperLoc);
120 Range.setEnd(ColonColonLoc);
121
122 assert(Range == Builder.getSourceRange() &&
123 "NestedNameSpecifierLoc range computation incorrect");
124}
125
127 NestedNameSpecifier *Qualifier, SourceRange R) {
128 Builder.MakeTrivial(Context, Qualifier, R);
129 Range = R;
130}
131
133 if (!Other) {
134 Range = SourceRange();
135 Builder.Clear();
136 return;
137 }
138
139 Range = Other.getSourceRange();
140 Builder.Adopt(Other);
141 assert(Range == Builder.getSourceRange() &&
142 "NestedNameSpecifierLoc range computation incorrect");
143}
144
146 if (!Builder.getRepresentation())
147 return SourceLocation();
148 return Builder.getTemporary().getLocalBeginLoc();
149}
150
153 if (!Builder.getRepresentation())
154 return NestedNameSpecifierLoc();
155
156 return Builder.getWithLocInContext(Context);
157}
158
159/// DeclaratorChunk::getFunction - Return a DeclaratorChunk for a function.
160/// "TheDeclarator" is the declarator that this will be added to.
162 bool isAmbiguous,
163 SourceLocation LParenLoc,
164 ParamInfo *Params,
165 unsigned NumParams,
166 SourceLocation EllipsisLoc,
167 SourceLocation RParenLoc,
168 bool RefQualifierIsLvalueRef,
169 SourceLocation RefQualifierLoc,
170 SourceLocation MutableLoc,
172 ESpecType,
173 SourceRange ESpecRange,
174 ParsedType *Exceptions,
175 SourceRange *ExceptionRanges,
176 unsigned NumExceptions,
177 Expr *NoexceptExpr,
178 CachedTokens *ExceptionSpecTokens,
180 DeclsInPrototype,
181 SourceLocation LocalRangeBegin,
182 SourceLocation LocalRangeEnd,
183 Declarator &TheDeclarator,
184 TypeResult TrailingReturnType,
186 TrailingReturnTypeLoc,
187 DeclSpec *MethodQualifiers) {
188 assert(!(MethodQualifiers && MethodQualifiers->getTypeQualifiers() & DeclSpec::TQ_atomic) &&
189 "function cannot have _Atomic qualifier");
190
192 I.Kind = Function;
193 I.Loc = LocalRangeBegin;
194 I.EndLoc = LocalRangeEnd;
195 new (&I.Fun) FunctionTypeInfo;
196 I.Fun.hasPrototype = hasProto;
197 I.Fun.isVariadic = EllipsisLoc.isValid();
198 I.Fun.isAmbiguous = isAmbiguous;
199 I.Fun.LParenLoc = LParenLoc;
200 I.Fun.EllipsisLoc = EllipsisLoc;
201 I.Fun.RParenLoc = RParenLoc;
202 I.Fun.DeleteParams = false;
203 I.Fun.NumParams = NumParams;
204 I.Fun.Params = nullptr;
205 I.Fun.RefQualifierIsLValueRef = RefQualifierIsLvalueRef;
206 I.Fun.RefQualifierLoc = RefQualifierLoc;
207 I.Fun.MutableLoc = MutableLoc;
208 I.Fun.ExceptionSpecType = ESpecType;
209 I.Fun.ExceptionSpecLocBeg = ESpecRange.getBegin();
210 I.Fun.ExceptionSpecLocEnd = ESpecRange.getEnd();
212 I.Fun.Exceptions = nullptr;
213 I.Fun.NoexceptExpr = nullptr;
214 I.Fun.HasTrailingReturnType = TrailingReturnType.isUsable() ||
215 TrailingReturnType.isInvalid();
216 I.Fun.TrailingReturnType = TrailingReturnType.get();
217 I.Fun.TrailingReturnTypeLoc = TrailingReturnTypeLoc;
218 I.Fun.MethodQualifiers = nullptr;
219 I.Fun.QualAttrFactory = nullptr;
220
221 if (MethodQualifiers && (MethodQualifiers->getTypeQualifiers() ||
222 MethodQualifiers->getAttributes().size())) {
223 auto &attrs = MethodQualifiers->getAttributes();
224 I.Fun.MethodQualifiers = new DeclSpec(attrs.getPool().getFactory());
225 MethodQualifiers->forEachCVRUQualifier(
226 [&](DeclSpec::TQ TypeQual, StringRef PrintName, SourceLocation SL) {
227 I.Fun.MethodQualifiers->SetTypeQual(TypeQual, SL);
228 });
230 I.Fun.MethodQualifiers->getAttributePool().takeAllFrom(attrs.getPool());
231 }
232
233 assert(I.Fun.ExceptionSpecType == ESpecType && "bitfield overflow");
234
235 // new[] a parameter array if needed.
236 if (NumParams) {
237 // If the 'InlineParams' in Declarator is unused and big enough, put our
238 // parameter list there (in an effort to avoid new/delete traffic). If it
239 // is already used (consider a function returning a function pointer) or too
240 // small (function with too many parameters), go to the heap.
241 if (!TheDeclarator.InlineStorageUsed &&
242 NumParams <= std::size(TheDeclarator.InlineParams)) {
243 I.Fun.Params = TheDeclarator.InlineParams;
244 new (I.Fun.Params) ParamInfo[NumParams];
245 I.Fun.DeleteParams = false;
246 TheDeclarator.InlineStorageUsed = true;
247 } else {
248 I.Fun.Params = new DeclaratorChunk::ParamInfo[NumParams];
249 I.Fun.DeleteParams = true;
250 }
251 for (unsigned i = 0; i < NumParams; i++)
252 I.Fun.Params[i] = std::move(Params[i]);
253 }
254
255 // Check what exception specification information we should actually store.
256 switch (ESpecType) {
257 default: break; // By default, save nothing.
258 case EST_Dynamic:
259 // new[] an exception array if needed
260 if (NumExceptions) {
261 I.Fun.NumExceptionsOrDecls = NumExceptions;
262 I.Fun.Exceptions = new DeclaratorChunk::TypeAndRange[NumExceptions];
263 for (unsigned i = 0; i != NumExceptions; ++i) {
264 I.Fun.Exceptions[i].Ty = Exceptions[i];
265 I.Fun.Exceptions[i].Range = ExceptionRanges[i];
266 }
267 }
268 break;
269
272 case EST_NoexceptTrue:
273 I.Fun.NoexceptExpr = NoexceptExpr;
274 break;
275
276 case EST_Unparsed:
277 I.Fun.ExceptionSpecTokens = ExceptionSpecTokens;
278 break;
279 }
280
281 if (!DeclsInPrototype.empty()) {
282 assert(ESpecType == EST_None && NumExceptions == 0 &&
283 "cannot have exception specifiers and decls in prototype");
284 I.Fun.NumExceptionsOrDecls = DeclsInPrototype.size();
285 // Copy the array of decls into stable heap storage.
286 I.Fun.DeclsInPrototype = new NamedDecl *[DeclsInPrototype.size()];
287 for (size_t J = 0; J < DeclsInPrototype.size(); ++J)
288 I.Fun.DeclsInPrototype[J] = DeclsInPrototype[J];
289 }
290
291 return I;
292}
293
295 SourceLocation LSquareLoc,
297 SourceLocation RSquareLoc) {
298 assert(!hasName() && "declarator given multiple names!");
299
300 BindingGroup.LSquareLoc = LSquareLoc;
301 BindingGroup.RSquareLoc = RSquareLoc;
302 BindingGroup.NumBindings = Bindings.size();
303 Range.setEnd(RSquareLoc);
304
305 // We're now past the identifier.
306 SetIdentifier(nullptr, LSquareLoc);
307 Name.EndLocation = RSquareLoc;
308
309 // Allocate storage for bindings and stash them away.
310 if (Bindings.size()) {
311 if (!InlineStorageUsed && Bindings.size() <= std::size(InlineBindings)) {
312 BindingGroup.Bindings = InlineBindings;
313 BindingGroup.DeleteBindings = false;
314 InlineStorageUsed = true;
315 } else {
316 BindingGroup.Bindings =
318 BindingGroup.DeleteBindings = true;
319 }
320 std::uninitialized_copy(Bindings.begin(), Bindings.end(),
321 BindingGroup.Bindings);
322 }
323}
324
326 for (unsigned i = 0, i_end = DeclTypeInfo.size(); i < i_end; ++i) {
327 switch (DeclTypeInfo[i].Kind) {
329 return true;
331 continue;
338 return false;
339 }
340 llvm_unreachable("Invalid type chunk");
341 }
342
343 switch (DS.getTypeSpecType()) {
344 case TST_atomic:
345 case TST_auto:
346 case TST_auto_type:
347 case TST_bool:
348 case TST_char:
349 case TST_char8:
350 case TST_char16:
351 case TST_char32:
352 case TST_class:
353 case TST_decimal128:
354 case TST_decimal32:
355 case TST_decimal64:
356 case TST_double:
357 case TST_Accum:
358 case TST_Fract:
359 case TST_Float16:
360 case TST_float128:
361 case TST_ibm128:
362 case TST_enum:
363 case TST_error:
364 case TST_float:
365 case TST_half:
366 case TST_int:
367 case TST_int128:
368 case TST_bitint:
369 case TST_struct:
370 case TST_interface:
371 case TST_union:
373 case TST_unspecified:
374 case TST_void:
375 case TST_wchar:
376 case TST_BFloat16:
378#define GENERIC_IMAGE_TYPE(ImgType, Id) case TST_##ImgType##_t:
379#include "clang/Basic/OpenCLImageTypes.def"
380 return false;
381
383 // This must have an initializer, so can't be a function declaration,
384 // even if the initializer has function type.
385 return false;
386
387 case TST_decltype:
389 case TST_typeofExpr:
390 if (Expr *E = DS.getRepAsExpr())
391 return E->getType()->isFunctionType();
392 return false;
393
394#define TRANSFORM_TYPE_TRAIT_DEF(_, Trait) case TST_##Trait:
395#include "clang/Basic/TransformTypeTraits.def"
396 case TST_typename:
398 case TST_typeofType: {
399 QualType QT = DS.getRepAsType().get();
400 if (QT.isNull())
401 return false;
402
403 if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT))
404 QT = LIT->getType();
405
406 if (QT.isNull())
407 return false;
408
409 return QT->isFunctionType();
410 }
411 }
412
413 llvm_unreachable("Invalid TypeSpecType!");
414}
415
421 getName().OperatorFunctionId.Operator));
422}
423
426 return false;
428 if (Fun.NumParams) {
429 auto *P = dyn_cast_or_null<ParmVarDecl>(Fun.Params[0].Param);
430 if (P && P->isExplicitObjectParameter())
431 return true;
432 }
433 return false;
434}
435
439}
440
442 llvm::function_ref<void(TQ, StringRef, SourceLocation)> Handle) {
443 if (TypeQualifiers & TQ_const)
444 Handle(TQ_const, "const", TQ_constLoc);
445 if (TypeQualifiers & TQ_volatile)
446 Handle(TQ_volatile, "volatile", TQ_volatileLoc);
447 if (TypeQualifiers & TQ_restrict)
448 Handle(TQ_restrict, "restrict", TQ_restrictLoc);
449 if (TypeQualifiers & TQ_unaligned)
450 Handle(TQ_unaligned, "unaligned", TQ_unalignedLoc);
451}
452
454 llvm::function_ref<void(TQ, StringRef, SourceLocation)> Handle) {
455 forEachCVRUQualifier(Handle);
456 // FIXME: Add code below to iterate through the attributes and call Handle.
457}
458
460 if (!TypeSpecOwned)
461 return false;
462 return cast<TagDecl>(getRepAsDecl())->isCompleteDefinition();
463}
464
465/// getParsedSpecifiers - Return a bitmask of which flavors of specifiers this
466/// declaration specifier includes.
467///
469 unsigned Res = 0;
470 if (StorageClassSpec != SCS_unspecified ||
471 ThreadStorageClassSpec != TSCS_unspecified)
473
474 if (TypeQualifiers != TQ_unspecified)
475 Res |= PQ_TypeQualifier;
476
477 if (hasTypeSpecifier())
478 Res |= PQ_TypeSpecifier;
479
480 if (FS_inline_specified || FS_virtual_specified || hasExplicitSpecifier() ||
481 FS_noreturn_specified || FS_forceinline_specified)
483 return Res;
484}
485
486template <class T> static bool BadSpecifier(T TNew, T TPrev,
487 const char *&PrevSpec,
488 unsigned &DiagID,
489 bool IsExtension = true) {
490 PrevSpec = DeclSpec::getSpecifierName(TPrev);
491 if (TNew != TPrev)
492 DiagID = diag::err_invalid_decl_spec_combination;
493 else
494 DiagID = IsExtension ? diag::ext_warn_duplicate_declspec :
495 diag::warn_duplicate_declspec;
496 return true;
497}
498
500 switch (S) {
501 case DeclSpec::SCS_unspecified: return "unspecified";
502 case DeclSpec::SCS_typedef: return "typedef";
503 case DeclSpec::SCS_extern: return "extern";
504 case DeclSpec::SCS_static: return "static";
505 case DeclSpec::SCS_auto: return "auto";
506 case DeclSpec::SCS_register: return "register";
507 case DeclSpec::SCS_private_extern: return "__private_extern__";
508 case DeclSpec::SCS_mutable: return "mutable";
509 }
510 llvm_unreachable("Unknown typespec!");
511}
512
514 switch (S) {
515 case DeclSpec::TSCS_unspecified: return "unspecified";
516 case DeclSpec::TSCS___thread: return "__thread";
517 case DeclSpec::TSCS_thread_local: return "thread_local";
518 case DeclSpec::TSCS__Thread_local: return "_Thread_local";
519 }
520 llvm_unreachable("Unknown typespec!");
521}
522
524 switch (W) {
526 return "unspecified";
528 return "short";
530 return "long";
532 return "long long";
533 }
534 llvm_unreachable("Unknown typespec!");
535}
536
538 switch (C) {
539 case TSC_unspecified: return "unspecified";
540 case TSC_imaginary: return "imaginary";
541 case TSC_complex: return "complex";
542 }
543 llvm_unreachable("Unknown typespec!");
544}
545
547 switch (S) {
549 return "unspecified";
551 return "signed";
553 return "unsigned";
554 }
555 llvm_unreachable("Unknown typespec!");
556}
557
559 const PrintingPolicy &Policy) {
560 switch (T) {
561 case DeclSpec::TST_unspecified: return "unspecified";
562 case DeclSpec::TST_void: return "void";
563 case DeclSpec::TST_char: return "char";
564 case DeclSpec::TST_wchar: return Policy.MSWChar ? "__wchar_t" : "wchar_t";
565 case DeclSpec::TST_char8: return "char8_t";
566 case DeclSpec::TST_char16: return "char16_t";
567 case DeclSpec::TST_char32: return "char32_t";
568 case DeclSpec::TST_int: return "int";
569 case DeclSpec::TST_int128: return "__int128";
570 case DeclSpec::TST_bitint: return "_BitInt";
571 case DeclSpec::TST_half: return "half";
572 case DeclSpec::TST_float: return "float";
573 case DeclSpec::TST_double: return "double";
574 case DeclSpec::TST_accum: return "_Accum";
575 case DeclSpec::TST_fract: return "_Fract";
576 case DeclSpec::TST_float16: return "_Float16";
577 case DeclSpec::TST_float128: return "__float128";
578 case DeclSpec::TST_ibm128: return "__ibm128";
579 case DeclSpec::TST_bool: return Policy.Bool ? "bool" : "_Bool";
580 case DeclSpec::TST_decimal32: return "_Decimal32";
581 case DeclSpec::TST_decimal64: return "_Decimal64";
582 case DeclSpec::TST_decimal128: return "_Decimal128";
583 case DeclSpec::TST_enum: return "enum";
584 case DeclSpec::TST_class: return "class";
585 case DeclSpec::TST_union: return "union";
586 case DeclSpec::TST_struct: return "struct";
587 case DeclSpec::TST_interface: return "__interface";
588 case DeclSpec::TST_typename: return "type-name";
590 return "type-name-pack-indexing";
592 case DeclSpec::TST_typeofExpr: return "typeof";
594 case DeclSpec::TST_typeof_unqualExpr: return "typeof_unqual";
595 case DeclSpec::TST_auto: return "auto";
596 case DeclSpec::TST_auto_type: return "__auto_type";
597 case DeclSpec::TST_decltype: return "(decltype)";
598 case DeclSpec::TST_decltype_auto: return "decltype(auto)";
599#define TRANSFORM_TYPE_TRAIT_DEF(_, Trait) \
600 case DeclSpec::TST_##Trait: \
601 return "__" #Trait;
602#include "clang/Basic/TransformTypeTraits.def"
603 case DeclSpec::TST_unknown_anytype: return "__unknown_anytype";
604 case DeclSpec::TST_atomic: return "_Atomic";
605 case DeclSpec::TST_BFloat16: return "__bf16";
606#define GENERIC_IMAGE_TYPE(ImgType, Id) \
607 case DeclSpec::TST_##ImgType##_t: \
608 return #ImgType "_t";
609#include "clang/Basic/OpenCLImageTypes.def"
610 case DeclSpec::TST_error: return "(error)";
611 }
612 llvm_unreachable("Unknown typespec!");
613}
614
616 switch (C) {
618 return "unspecified";
620 return "constexpr";
622 return "consteval";
624 return "constinit";
625 }
626 llvm_unreachable("Unknown ConstexprSpecKind");
627}
628
630 switch (T) {
631 case DeclSpec::TQ_unspecified: return "unspecified";
632 case DeclSpec::TQ_const: return "const";
633 case DeclSpec::TQ_restrict: return "restrict";
634 case DeclSpec::TQ_volatile: return "volatile";
635 case DeclSpec::TQ_atomic: return "_Atomic";
636 case DeclSpec::TQ_unaligned: return "__unaligned";
637 }
638 llvm_unreachable("Unknown typespec!");
639}
640
642 const char *&PrevSpec,
643 unsigned &DiagID,
644 const PrintingPolicy &Policy) {
645 // OpenCL v1.1 s6.8g: "The extern, static, auto and register storage-class
646 // specifiers are not supported.
647 // It seems sensible to prohibit private_extern too
648 // The cl_clang_storage_class_specifiers extension enables support for
649 // these storage-class specifiers.
650 // OpenCL v1.2 s6.8 changes this to "The auto and register storage-class
651 // specifiers are not supported."
652 if (S.getLangOpts().OpenCL &&
654 "cl_clang_storage_class_specifiers", S.getLangOpts())) {
655 switch (SC) {
656 case SCS_extern:
658 case SCS_static:
659 if (S.getLangOpts().getOpenCLCompatibleVersion() < 120) {
660 DiagID = diag::err_opencl_unknown_type_specifier;
661 PrevSpec = getSpecifierName(SC);
662 return true;
663 }
664 break;
665 case SCS_auto:
666 case SCS_register:
667 DiagID = diag::err_opencl_unknown_type_specifier;
668 PrevSpec = getSpecifierName(SC);
669 return true;
670 default:
671 break;
672 }
673 }
674
675 if (StorageClassSpec != SCS_unspecified) {
676 // Maybe this is an attempt to use C++11 'auto' outside of C++11 mode.
677 bool isInvalid = true;
678 if (TypeSpecType == TST_unspecified && S.getLangOpts().CPlusPlus) {
679 if (SC == SCS_auto)
680 return SetTypeSpecType(TST_auto, Loc, PrevSpec, DiagID, Policy);
681 if (StorageClassSpec == SCS_auto) {
682 isInvalid = SetTypeSpecType(TST_auto, StorageClassSpecLoc,
683 PrevSpec, DiagID, Policy);
684 assert(!isInvalid && "auto SCS -> TST recovery failed");
685 }
686 }
687
688 // Changing storage class is allowed only if the previous one
689 // was the 'extern' that is part of a linkage specification and
690 // the new storage class is 'typedef'.
691 if (isInvalid &&
692 !(SCS_extern_in_linkage_spec &&
693 StorageClassSpec == SCS_extern &&
694 SC == SCS_typedef))
695 return BadSpecifier(SC, (SCS)StorageClassSpec, PrevSpec, DiagID);
696 }
697 StorageClassSpec = SC;
698 StorageClassSpecLoc = Loc;
699 assert((unsigned)SC == StorageClassSpec && "SCS constants overflow bitfield");
700 return false;
701}
702
704 const char *&PrevSpec,
705 unsigned &DiagID) {
706 if (ThreadStorageClassSpec != TSCS_unspecified)
707 return BadSpecifier(TSC, (TSCS)ThreadStorageClassSpec, PrevSpec, DiagID);
708
709 ThreadStorageClassSpec = TSC;
710 ThreadStorageClassSpecLoc = Loc;
711 return false;
712}
713
714/// These methods set the specified attribute of the DeclSpec, but return true
715/// and ignore the request if invalid (e.g. "extern" then "auto" is
716/// specified).
718 const char *&PrevSpec, unsigned &DiagID,
719 const PrintingPolicy &Policy) {
720 // Overwrite TSWRange.Begin only if TypeSpecWidth was unspecified, so that
721 // for 'long long' we will keep the source location of the first 'long'.
723 TSWRange.setBegin(Loc);
724 // Allow turning long -> long long.
725 else if (W != TypeSpecifierWidth::LongLong ||
727 return BadSpecifier(W, getTypeSpecWidth(), PrevSpec, DiagID);
728 TypeSpecWidth = static_cast<unsigned>(W);
729 // Remember location of the last 'long'
730 TSWRange.setEnd(Loc);
731 return false;
732}
733
735 const char *&PrevSpec,
736 unsigned &DiagID) {
737 if (TypeSpecComplex != TSC_unspecified)
738 return BadSpecifier(C, (TSC)TypeSpecComplex, PrevSpec, DiagID);
739 TypeSpecComplex = C;
740 TSCLoc = Loc;
741 return false;
742}
743
745 const char *&PrevSpec, unsigned &DiagID) {
747 return BadSpecifier(S, getTypeSpecSign(), PrevSpec, DiagID);
748 TypeSpecSign = static_cast<unsigned>(S);
749 TSSLoc = Loc;
750 return false;
751}
752
754 const char *&PrevSpec,
755 unsigned &DiagID,
756 ParsedType Rep,
757 const PrintingPolicy &Policy) {
758 return SetTypeSpecType(T, Loc, Loc, PrevSpec, DiagID, Rep, Policy);
759}
760
762 SourceLocation TagNameLoc,
763 const char *&PrevSpec,
764 unsigned &DiagID,
765 ParsedType Rep,
766 const PrintingPolicy &Policy) {
767 assert(isTypeRep(T) && "T does not store a type");
768 assert(Rep && "no type provided!");
769 if (TypeSpecType == TST_error)
770 return false;
771 if (TypeSpecType != TST_unspecified) {
772 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
773 DiagID = diag::err_invalid_decl_spec_combination;
774 return true;
775 }
776 TypeSpecType = T;
777 TypeRep = Rep;
778 TSTLoc = TagKwLoc;
779 TSTNameLoc = TagNameLoc;
780 TypeSpecOwned = false;
781
783 // we got there from a an annotation. Reconstruct the type
784 // Ugly...
785 QualType QT = Rep.get();
786 const PackIndexingType *LIT = cast<PackIndexingType>(QT);
789 }
790 return false;
791}
792
794 const char *&PrevSpec,
795 unsigned &DiagID,
796 Expr *Rep,
797 const PrintingPolicy &Policy) {
798 assert(isExprRep(T) && "T does not store an expr");
799 assert(Rep && "no expression provided!");
800 if (TypeSpecType == TST_error)
801 return false;
802 if (TypeSpecType != TST_unspecified) {
803 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
804 DiagID = diag::err_invalid_decl_spec_combination;
805 return true;
806 }
807 TypeSpecType = T;
808 ExprRep = Rep;
809 TSTLoc = Loc;
810 TSTNameLoc = Loc;
811 TypeSpecOwned = false;
812 return false;
813}
814
816 const char *&PrevSpec,
817 unsigned &DiagID,
818 Decl *Rep, bool Owned,
819 const PrintingPolicy &Policy) {
820 return SetTypeSpecType(T, Loc, Loc, PrevSpec, DiagID, Rep, Owned, Policy);
821}
822
824 SourceLocation TagNameLoc,
825 const char *&PrevSpec,
826 unsigned &DiagID,
827 Decl *Rep, bool Owned,
828 const PrintingPolicy &Policy) {
829 assert(isDeclRep(T) && "T does not store a decl");
830 // Unlike the other cases, we don't assert that we actually get a decl.
831
832 if (TypeSpecType == TST_error)
833 return false;
834 if (TypeSpecType != TST_unspecified) {
835 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
836 DiagID = diag::err_invalid_decl_spec_combination;
837 return true;
838 }
839 TypeSpecType = T;
840 DeclRep = Rep;
841 TSTLoc = TagKwLoc;
842 TSTNameLoc = TagNameLoc;
843 TypeSpecOwned = Owned && Rep != nullptr;
844 return false;
845}
846
847bool DeclSpec::SetTypeSpecType(TST T, SourceLocation Loc, const char *&PrevSpec,
848 unsigned &DiagID, TemplateIdAnnotation *Rep,
849 const PrintingPolicy &Policy) {
850 assert(T == TST_auto || T == TST_decltype_auto);
851 ConstrainedAuto = true;
852 TemplateIdRep = Rep;
853 return SetTypeSpecType(T, Loc, PrevSpec, DiagID, Policy);
854}
855
857 const char *&PrevSpec,
858 unsigned &DiagID,
859 const PrintingPolicy &Policy) {
860 assert(!isDeclRep(T) && !isTypeRep(T) && !isExprRep(T) &&
861 "rep required for these type-spec kinds!");
862 if (TypeSpecType == TST_error)
863 return false;
864 if (TypeSpecType != TST_unspecified) {
865 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
866 DiagID = diag::err_invalid_decl_spec_combination;
867 return true;
868 }
869 TSTLoc = Loc;
870 TSTNameLoc = Loc;
871 if (TypeAltiVecVector && (T == TST_bool) && !TypeAltiVecBool) {
872 TypeAltiVecBool = true;
873 return false;
874 }
875 TypeSpecType = T;
876 TypeSpecOwned = false;
877 return false;
878}
879
880bool DeclSpec::SetTypeSpecSat(SourceLocation Loc, const char *&PrevSpec,
881 unsigned &DiagID) {
882 // Cannot set twice
883 if (TypeSpecSat) {
884 DiagID = diag::warn_duplicate_declspec;
885 PrevSpec = "_Sat";
886 return true;
887 }
888 TypeSpecSat = true;
889 TSSatLoc = Loc;
890 return false;
891}
892
893bool DeclSpec::SetTypeAltiVecVector(bool isAltiVecVector, SourceLocation Loc,
894 const char *&PrevSpec, unsigned &DiagID,
895 const PrintingPolicy &Policy) {
896 if (TypeSpecType == TST_error)
897 return false;
898 if (TypeSpecType != TST_unspecified) {
899 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
900 DiagID = diag::err_invalid_vector_decl_spec_combination;
901 return true;
902 }
903 TypeAltiVecVector = isAltiVecVector;
904 AltiVecLoc = Loc;
905 return false;
906}
907
909 const char *&PrevSpec, unsigned &DiagID,
910 const PrintingPolicy &Policy) {
911 if (TypeSpecType == TST_error)
912 return false;
913 if (TypeSpecType != TST_unspecified) {
914 PrevSpec = DeclSpec::getSpecifierName((TST)TypeSpecType, Policy);
915 DiagID = diag::err_invalid_decl_spec_combination;
916 return true;
917 }
918
919 if (isPipe) {
920 TypeSpecPipe = static_cast<unsigned>(TypeSpecifiersPipe::Pipe);
921 }
922 return false;
923}
924
925bool DeclSpec::SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc,
926 const char *&PrevSpec, unsigned &DiagID,
927 const PrintingPolicy &Policy) {
928 if (TypeSpecType == TST_error)
929 return false;
930 if (!TypeAltiVecVector || TypeAltiVecPixel ||
931 (TypeSpecType != TST_unspecified)) {
932 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
933 DiagID = diag::err_invalid_pixel_decl_spec_combination;
934 return true;
935 }
936 TypeAltiVecPixel = isAltiVecPixel;
937 TSTLoc = Loc;
938 TSTNameLoc = Loc;
939 return false;
940}
941
942bool DeclSpec::SetTypeAltiVecBool(bool isAltiVecBool, SourceLocation Loc,
943 const char *&PrevSpec, unsigned &DiagID,
944 const PrintingPolicy &Policy) {
945 if (TypeSpecType == TST_error)
946 return false;
947 if (!TypeAltiVecVector || TypeAltiVecBool ||
948 (TypeSpecType != TST_unspecified)) {
949 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
950 DiagID = diag::err_invalid_vector_bool_decl_spec;
951 return true;
952 }
953 TypeAltiVecBool = isAltiVecBool;
954 TSTLoc = Loc;
955 TSTNameLoc = Loc;
956 return false;
957}
958
960 TypeSpecType = TST_error;
961 TypeSpecOwned = false;
962 TSTLoc = SourceLocation();
963 TSTNameLoc = SourceLocation();
964 return false;
965}
966
968 const char *&PrevSpec, unsigned &DiagID,
969 const PrintingPolicy &Policy) {
970 assert(BitsExpr && "no expression provided!");
971 if (TypeSpecType == TST_error)
972 return false;
973
974 if (TypeSpecType != TST_unspecified) {
975 PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
976 DiagID = diag::err_invalid_decl_spec_combination;
977 return true;
978 }
979
980 TypeSpecType = TST_bitint;
981 ExprRep = BitsExpr;
982 TSTLoc = KWLoc;
983 TSTNameLoc = KWLoc;
984 TypeSpecOwned = false;
985 return false;
986}
987
989 Expr *IndexingExpr) {
990 assert(TypeSpecType == TST_typename &&
991 "pack indexing can only be applied to typename");
992 TypeSpecType = TST_typename_pack_indexing;
993 PackIndexingExpr = IndexingExpr;
994 this->EllipsisLoc = EllipsisLoc;
995}
996
997bool DeclSpec::SetTypeQual(TQ T, SourceLocation Loc, const char *&PrevSpec,
998 unsigned &DiagID, const LangOptions &Lang) {
999 // Duplicates are permitted in C99 onwards, but are not permitted in C89 or
1000 // C++. However, since this is likely not what the user intended, we will
1001 // always warn. We do not need to set the qualifier's location since we
1002 // already have it.
1003 if (TypeQualifiers & T) {
1004 bool IsExtension = true;
1005 if (Lang.C99)
1006 IsExtension = false;
1007 return BadSpecifier(T, T, PrevSpec, DiagID, IsExtension);
1008 }
1009
1010 return SetTypeQual(T, Loc);
1011}
1012
1014 TypeQualifiers |= T;
1015
1016 switch (T) {
1017 case TQ_unspecified: break;
1018 case TQ_const: TQ_constLoc = Loc; return false;
1019 case TQ_restrict: TQ_restrictLoc = Loc; return false;
1020 case TQ_volatile: TQ_volatileLoc = Loc; return false;
1021 case TQ_unaligned: TQ_unalignedLoc = Loc; return false;
1022 case TQ_atomic: TQ_atomicLoc = Loc; return false;
1023 }
1024
1025 llvm_unreachable("Unknown type qualifier!");
1026}
1027
1028bool DeclSpec::setFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec,
1029 unsigned &DiagID) {
1030 // 'inline inline' is ok. However, since this is likely not what the user
1031 // intended, we will always warn, similar to duplicates of type qualifiers.
1032 if (FS_inline_specified) {
1033 DiagID = diag::warn_duplicate_declspec;
1034 PrevSpec = "inline";
1035 return true;
1036 }
1037 FS_inline_specified = true;
1038 FS_inlineLoc = Loc;
1039 return false;
1040}
1041
1043 unsigned &DiagID) {
1044 if (FS_forceinline_specified) {
1045 DiagID = diag::warn_duplicate_declspec;
1046 PrevSpec = "__forceinline";
1047 return true;
1048 }
1049 FS_forceinline_specified = true;
1050 FS_forceinlineLoc = Loc;
1051 return false;
1052}
1053
1055 const char *&PrevSpec,
1056 unsigned &DiagID) {
1057 // 'virtual virtual' is ok, but warn as this is likely not what the user
1058 // intended.
1059 if (FS_virtual_specified) {
1060 DiagID = diag::warn_duplicate_declspec;
1061 PrevSpec = "virtual";
1062 return true;
1063 }
1064 FS_virtual_specified = true;
1065 FS_virtualLoc = Loc;
1066 return false;
1067}
1068
1070 const char *&PrevSpec, unsigned &DiagID,
1071 ExplicitSpecifier ExplicitSpec,
1072 SourceLocation CloseParenLoc) {
1073 // 'explicit explicit' is ok, but warn as this is likely not what the user
1074 // intended.
1075 if (hasExplicitSpecifier()) {
1076 DiagID = (ExplicitSpec.getExpr() || FS_explicit_specifier.getExpr())
1077 ? diag::err_duplicate_declspec
1078 : diag::ext_warn_duplicate_declspec;
1079 PrevSpec = "explicit";
1080 return true;
1081 }
1082 FS_explicit_specifier = ExplicitSpec;
1083 FS_explicitLoc = Loc;
1084 FS_explicitCloseParenLoc = CloseParenLoc;
1085 return false;
1086}
1087
1089 const char *&PrevSpec,
1090 unsigned &DiagID) {
1091 // '_Noreturn _Noreturn' is ok, but warn as this is likely not what the user
1092 // intended.
1093 if (FS_noreturn_specified) {
1094 DiagID = diag::warn_duplicate_declspec;
1095 PrevSpec = "_Noreturn";
1096 return true;
1097 }
1098 FS_noreturn_specified = true;
1099 FS_noreturnLoc = Loc;
1100 return false;
1101}
1102
1103bool DeclSpec::SetFriendSpec(SourceLocation Loc, const char *&PrevSpec,
1104 unsigned &DiagID) {
1105 if (isFriendSpecified()) {
1106 PrevSpec = "friend";
1107 DiagID = diag::warn_duplicate_declspec;
1108 return true;
1109 }
1110
1111 FriendSpecifiedFirst = isEmpty();
1112 FriendLoc = Loc;
1113 return false;
1114}
1115
1116bool DeclSpec::setModulePrivateSpec(SourceLocation Loc, const char *&PrevSpec,
1117 unsigned &DiagID) {
1119 PrevSpec = "__module_private__";
1120 DiagID = diag::ext_warn_duplicate_declspec;
1121 return true;
1122 }
1123
1124 ModulePrivateLoc = Loc;
1125 return false;
1126}
1127
1129 SourceLocation Loc, const char *&PrevSpec,
1130 unsigned &DiagID) {
1132 return BadSpecifier(ConstexprKind, getConstexprSpecifier(), PrevSpec,
1133 DiagID);
1134 ConstexprSpecifier = static_cast<unsigned>(ConstexprKind);
1135 ConstexprLoc = Loc;
1136 return false;
1137}
1138
1139void DeclSpec::SaveWrittenBuiltinSpecs() {
1140 writtenBS.Sign = static_cast<int>(getTypeSpecSign());
1141 writtenBS.Width = static_cast<int>(getTypeSpecWidth());
1142 writtenBS.Type = getTypeSpecType();
1143 // Search the list of attributes for the presence of a mode attribute.
1144 writtenBS.ModeAttr = getAttributes().hasAttribute(ParsedAttr::AT_Mode);
1145}
1146
1147/// Finish - This does final analysis of the declspec, rejecting things like
1148/// "_Imaginary" (lacking an FP type). After calling this method, DeclSpec is
1149/// guaranteed to be self-consistent, even if an error occurred.
1150void DeclSpec::Finish(Sema &S, const PrintingPolicy &Policy) {
1151 // Before possibly changing their values, save specs as written.
1152 SaveWrittenBuiltinSpecs();
1153
1154 // Check the type specifier components first. No checking for an invalid
1155 // type.
1156 if (TypeSpecType == TST_error)
1157 return;
1158
1159 // If decltype(auto) is used, no other type specifiers are permitted.
1160 if (TypeSpecType == TST_decltype_auto &&
1162 TypeSpecComplex != TSC_unspecified ||
1164 TypeAltiVecVector || TypeAltiVecPixel || TypeAltiVecBool ||
1165 TypeQualifiers)) {
1166 const unsigned NumLocs = 9;
1167 SourceLocation ExtraLocs[NumLocs] = {
1168 TSWRange.getBegin(), TSCLoc, TSSLoc,
1169 AltiVecLoc, TQ_constLoc, TQ_restrictLoc,
1170 TQ_volatileLoc, TQ_atomicLoc, TQ_unalignedLoc};
1171 FixItHint Hints[NumLocs];
1172 SourceLocation FirstLoc;
1173 for (unsigned I = 0; I != NumLocs; ++I) {
1174 if (ExtraLocs[I].isValid()) {
1175 if (FirstLoc.isInvalid() ||
1177 FirstLoc))
1178 FirstLoc = ExtraLocs[I];
1179 Hints[I] = FixItHint::CreateRemoval(ExtraLocs[I]);
1180 }
1181 }
1182 TypeSpecWidth = static_cast<unsigned>(TypeSpecifierWidth::Unspecified);
1183 TypeSpecComplex = TSC_unspecified;
1184 TypeSpecSign = static_cast<unsigned>(TypeSpecifierSign::Unspecified);
1185 TypeAltiVecVector = TypeAltiVecPixel = TypeAltiVecBool = false;
1186 TypeQualifiers = 0;
1187 S.Diag(TSTLoc, diag::err_decltype_auto_cannot_be_combined)
1188 << Hints[0] << Hints[1] << Hints[2] << Hints[3]
1189 << Hints[4] << Hints[5] << Hints[6] << Hints[7];
1190 }
1191
1192 // Validate and finalize AltiVec vector declspec.
1193 if (TypeAltiVecVector) {
1194 // No vector long long without VSX (or ZVector).
1196 !S.Context.getTargetInfo().hasFeature("vsx") &&
1197 !S.getLangOpts().ZVector)
1198 S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_long_long_decl_spec);
1199
1200 // No vector __int128 prior to Power8.
1201 if ((TypeSpecType == TST_int128) &&
1202 !S.Context.getTargetInfo().hasFeature("power8-vector"))
1203 S.Diag(TSTLoc, diag::err_invalid_vector_int128_decl_spec);
1204
1205 if (TypeAltiVecBool) {
1206 // Sign specifiers are not allowed with vector bool. (PIM 2.1)
1208 S.Diag(TSSLoc, diag::err_invalid_vector_bool_decl_spec)
1210 }
1211 // Only char/int are valid with vector bool prior to Power10.
1212 // Power10 adds instructions that produce vector bool data
1213 // for quadwords as well so allow vector bool __int128.
1214 if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
1215 (TypeSpecType != TST_int) && (TypeSpecType != TST_int128)) ||
1216 TypeAltiVecPixel) {
1217 S.Diag(TSTLoc, diag::err_invalid_vector_bool_decl_spec)
1218 << (TypeAltiVecPixel ? "__pixel" :
1219 getSpecifierName((TST)TypeSpecType, Policy));
1220 }
1221 // vector bool __int128 requires Power10.
1222 if ((TypeSpecType == TST_int128) &&
1223 (!S.Context.getTargetInfo().hasFeature("power10-vector")))
1224 S.Diag(TSTLoc, diag::err_invalid_vector_bool_int128_decl_spec);
1225
1226 // Only 'short' and 'long long' are valid with vector bool. (PIM 2.1)
1230 S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_bool_decl_spec)
1232
1233 // Elements of vector bool are interpreted as unsigned. (PIM 2.1)
1234 if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
1235 (TypeSpecType == TST_int128) ||
1237 TypeSpecSign = static_cast<unsigned>(TypeSpecifierSign::Unsigned);
1238 } else if (TypeSpecType == TST_double) {
1239 // vector long double and vector long long double are never allowed.
1240 // vector double is OK for Power7 and later, and ZVector.
1243 S.Diag(TSWRange.getBegin(),
1244 diag::err_invalid_vector_long_double_decl_spec);
1245 else if (!S.Context.getTargetInfo().hasFeature("vsx") &&
1246 !S.getLangOpts().ZVector)
1247 S.Diag(TSTLoc, diag::err_invalid_vector_double_decl_spec);
1248 } else if (TypeSpecType == TST_float) {
1249 // vector float is unsupported for ZVector unless we have the
1250 // vector-enhancements facility 1 (ISA revision 12).
1251 if (S.getLangOpts().ZVector &&
1252 !S.Context.getTargetInfo().hasFeature("arch12"))
1253 S.Diag(TSTLoc, diag::err_invalid_vector_float_decl_spec);
1255 // Vector long is unsupported for ZVector, or without VSX, and deprecated
1256 // for AltiVec.
1257 // It has also been historically deprecated on AIX (as an alias for
1258 // "vector int" in both 32-bit and 64-bit modes). It was then made
1259 // unsupported in the Clang-based XL compiler since the deprecated type
1260 // has a number of conflicting semantics and continuing to support it
1261 // is a disservice to users.
1262 if (S.getLangOpts().ZVector ||
1263 !S.Context.getTargetInfo().hasFeature("vsx") ||
1264 S.Context.getTargetInfo().getTriple().isOSAIX())
1265 S.Diag(TSWRange.getBegin(), diag::err_invalid_vector_long_decl_spec);
1266 else
1267 S.Diag(TSWRange.getBegin(),
1268 diag::warn_vector_long_decl_spec_combination)
1269 << getSpecifierName((TST)TypeSpecType, Policy);
1270 }
1271
1272 if (TypeAltiVecPixel) {
1273 //TODO: perform validation
1274 TypeSpecType = TST_int;
1275 TypeSpecSign = static_cast<unsigned>(TypeSpecifierSign::Unsigned);
1276 TypeSpecWidth = static_cast<unsigned>(TypeSpecifierWidth::Short);
1277 TypeSpecOwned = false;
1278 }
1279 }
1280
1281 bool IsFixedPointType =
1282 TypeSpecType == TST_accum || TypeSpecType == TST_fract;
1283
1284 // signed/unsigned are only valid with int/char/wchar_t/_Accum.
1286 if (TypeSpecType == TST_unspecified)
1287 TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
1288 else if (TypeSpecType != TST_int && TypeSpecType != TST_int128 &&
1289 TypeSpecType != TST_char && TypeSpecType != TST_wchar &&
1290 !IsFixedPointType && TypeSpecType != TST_bitint) {
1291 S.Diag(TSSLoc, diag::err_invalid_sign_spec)
1292 << getSpecifierName((TST)TypeSpecType, Policy);
1293 // signed double -> double.
1294 TypeSpecSign = static_cast<unsigned>(TypeSpecifierSign::Unspecified);
1295 }
1296 }
1297
1298 // Validate the width of the type.
1299 switch (getTypeSpecWidth()) {
1301 break;
1302 case TypeSpecifierWidth::Short: // short int
1303 case TypeSpecifierWidth::LongLong: // long long int
1304 if (TypeSpecType == TST_unspecified)
1305 TypeSpecType = TST_int; // short -> short int, long long -> long long int.
1306 else if (!(TypeSpecType == TST_int ||
1307 (IsFixedPointType &&
1309 S.Diag(TSWRange.getBegin(), diag::err_invalid_width_spec)
1310 << (int)TypeSpecWidth << getSpecifierName((TST)TypeSpecType, Policy);
1311 TypeSpecType = TST_int;
1312 TypeSpecSat = false;
1313 TypeSpecOwned = false;
1314 }
1315 break;
1316 case TypeSpecifierWidth::Long: // long double, long int
1317 if (TypeSpecType == TST_unspecified)
1318 TypeSpecType = TST_int; // long -> long int.
1319 else if (TypeSpecType != TST_int && TypeSpecType != TST_double &&
1320 !IsFixedPointType) {
1321 S.Diag(TSWRange.getBegin(), diag::err_invalid_width_spec)
1322 << (int)TypeSpecWidth << getSpecifierName((TST)TypeSpecType, Policy);
1323 TypeSpecType = TST_int;
1324 TypeSpecSat = false;
1325 TypeSpecOwned = false;
1326 }
1327 break;
1328 }
1329
1330 // TODO: if the implementation does not implement _Complex or _Imaginary,
1331 // disallow their use. Need information about the backend.
1332 if (TypeSpecComplex != TSC_unspecified) {
1333 if (TypeSpecType == TST_unspecified) {
1334 S.Diag(TSCLoc, diag::ext_plain_complex)
1337 " double");
1338 TypeSpecType = TST_double; // _Complex -> _Complex double.
1339 } else if (TypeSpecType == TST_int || TypeSpecType == TST_char ||
1340 TypeSpecType == TST_bitint) {
1341 // Note that this intentionally doesn't include _Complex _Bool.
1342 if (!S.getLangOpts().CPlusPlus)
1343 S.Diag(TSTLoc, diag::ext_integer_complex);
1344 } else if (TypeSpecType != TST_float && TypeSpecType != TST_double &&
1345 TypeSpecType != TST_float128 && TypeSpecType != TST_float16 &&
1346 TypeSpecType != TST_ibm128) {
1347 // FIXME: __fp16?
1348 S.Diag(TSCLoc, diag::err_invalid_complex_spec)
1349 << getSpecifierName((TST)TypeSpecType, Policy);
1350 TypeSpecComplex = TSC_unspecified;
1351 }
1352 }
1353
1354 // C11 6.7.1/3, C++11 [dcl.stc]p1, GNU TLS: __thread, thread_local and
1355 // _Thread_local can only appear with the 'static' and 'extern' storage class
1356 // specifiers. We also allow __private_extern__ as an extension.
1357 if (ThreadStorageClassSpec != TSCS_unspecified) {
1358 switch (StorageClassSpec) {
1359 case SCS_unspecified:
1360 case SCS_extern:
1361 case SCS_private_extern:
1362 case SCS_static:
1363 break;
1364 default:
1368 diag::err_invalid_decl_spec_combination)
1371 else
1373 diag::err_invalid_decl_spec_combination)
1376 // Discard the thread storage class specifier to recover.
1377 ThreadStorageClassSpec = TSCS_unspecified;
1378 ThreadStorageClassSpecLoc = SourceLocation();
1379 }
1380 if (S.getLangOpts().C23 &&
1382 S.Diag(ConstexprLoc, diag::err_invalid_decl_spec_combination)
1385 }
1386 }
1387
1388 if (S.getLangOpts().C23 &&
1390 StorageClassSpec == SCS_extern) {
1391 S.Diag(ConstexprLoc, diag::err_invalid_decl_spec_combination)
1394 }
1395
1396 // If no type specifier was provided and we're parsing a language where
1397 // the type specifier is not optional, but we got 'auto' as a storage
1398 // class specifier, then assume this is an attempt to use C++0x's 'auto'
1399 // type specifier.
1400 if (S.getLangOpts().CPlusPlus &&
1401 TypeSpecType == TST_unspecified && StorageClassSpec == SCS_auto) {
1402 TypeSpecType = TST_auto;
1403 StorageClassSpec = SCS_unspecified;
1404 TSTLoc = TSTNameLoc = StorageClassSpecLoc;
1405 StorageClassSpecLoc = SourceLocation();
1406 }
1407 // Diagnose if we've recovered from an ill-formed 'auto' storage class
1408 // specifier in a pre-C++11 dialect of C++ or in a pre-C23 dialect of C.
1409 if (!S.getLangOpts().CPlusPlus11 && !S.getLangOpts().C23 &&
1410 TypeSpecType == TST_auto)
1411 S.Diag(TSTLoc, diag::ext_auto_type_specifier);
1412 if (S.getLangOpts().CPlusPlus && !S.getLangOpts().CPlusPlus11 &&
1413 StorageClassSpec == SCS_auto)
1414 S.Diag(StorageClassSpecLoc, diag::warn_auto_storage_class)
1415 << FixItHint::CreateRemoval(StorageClassSpecLoc);
1416 if (TypeSpecType == TST_char8)
1417 S.Diag(TSTLoc, diag::warn_cxx17_compat_unicode_type);
1418 else if (TypeSpecType == TST_char16 || TypeSpecType == TST_char32)
1419 S.Diag(TSTLoc, diag::warn_cxx98_compat_unicode_type)
1420 << (TypeSpecType == TST_char16 ? "char16_t" : "char32_t");
1422 S.Diag(ConstexprLoc, diag::warn_cxx98_compat_constexpr);
1424 S.Diag(ConstexprLoc, diag::warn_cxx20_compat_consteval);
1426 S.Diag(ConstexprLoc, diag::warn_cxx20_compat_constinit);
1427 // C++ [class.friend]p6:
1428 // No storage-class-specifier shall appear in the decl-specifier-seq
1429 // of a friend declaration.
1430 if (isFriendSpecified() &&
1432 SmallString<32> SpecName;
1433 SourceLocation SCLoc;
1434 FixItHint StorageHint, ThreadHint;
1435
1437 SpecName = getSpecifierName(SC);
1438 SCLoc = getStorageClassSpecLoc();
1439 StorageHint = FixItHint::CreateRemoval(SCLoc);
1440 }
1441
1443 if (!SpecName.empty()) SpecName += " ";
1444 SpecName += getSpecifierName(TSC);
1446 ThreadHint = FixItHint::CreateRemoval(SCLoc);
1447 }
1448
1449 S.Diag(SCLoc, diag::err_friend_decl_spec)
1450 << SpecName << StorageHint << ThreadHint;
1451
1453 }
1454
1455 // C++11 [dcl.fct.spec]p5:
1456 // The virtual specifier shall be used only in the initial
1457 // declaration of a non-static class member function;
1458 // C++11 [dcl.fct.spec]p6:
1459 // The explicit specifier shall be used only in the declaration of
1460 // a constructor or conversion function within its class
1461 // definition;
1463 StringRef Keyword;
1464 FixItHint Hint;
1465 SourceLocation SCLoc;
1466
1467 if (isVirtualSpecified()) {
1468 Keyword = "virtual";
1469 SCLoc = getVirtualSpecLoc();
1470 Hint = FixItHint::CreateRemoval(SCLoc);
1471 } else {
1472 Keyword = "explicit";
1473 SCLoc = getExplicitSpecLoc();
1475 }
1476
1477 S.Diag(SCLoc, diag::err_friend_decl_spec)
1478 << Keyword << Hint;
1479
1480 FS_virtual_specified = false;
1481 FS_explicit_specifier = ExplicitSpecifier();
1482 FS_virtualLoc = FS_explicitLoc = SourceLocation();
1483 }
1484
1485 assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
1486
1487 // Okay, now we can infer the real type.
1488
1489 // TODO: return "auto function" and other bad things based on the real type.
1490
1491 // 'data definition has no type or storage class'?
1492}
1493
1495 TST tst = getTypeSpecType();
1496 return isDeclRep(tst) && getRepAsDecl() != nullptr &&
1497 StorageClassSpec != DeclSpec::SCS_typedef;
1498}
1499
1502 SourceLocation SymbolLocations[3]) {
1504 StartLocation = OperatorLoc;
1505 EndLocation = OperatorLoc;
1506 new (&OperatorFunctionId) struct OFI;
1508 for (unsigned I = 0; I != 3; ++I) {
1509 OperatorFunctionId.SymbolLocations[I] = SymbolLocations[I];
1510
1511 if (SymbolLocations[I].isValid())
1512 EndLocation = SymbolLocations[I];
1513 }
1514}
1515
1517 const char *&PrevSpec) {
1518 if (!FirstLocation.isValid())
1519 FirstLocation = Loc;
1520 LastLocation = Loc;
1521 LastSpecifier = VS;
1522
1523 if (Specifiers & VS) {
1524 PrevSpec = getSpecifierName(VS);
1525 return true;
1526 }
1527
1528 Specifiers |= VS;
1529
1530 switch (VS) {
1531 default: llvm_unreachable("Unknown specifier!");
1532 case VS_Override: VS_overrideLoc = Loc; break;
1533 case VS_GNU_Final:
1534 case VS_Sealed:
1535 case VS_Final: VS_finalLoc = Loc; break;
1536 case VS_Abstract: VS_abstractLoc = Loc; break;
1537 }
1538
1539 return false;
1540}
1541
1543 switch (VS) {
1544 default: llvm_unreachable("Unknown specifier");
1545 case VS_Override: return "override";
1546 case VS_Final: return "final";
1547 case VS_GNU_Final: return "__final";
1548 case VS_Sealed: return "sealed";
1549 case VS_Abstract: return "abstract";
1550 }
1551}
Defines the clang::ASTContext interface.
StringRef P
static Decl::Kind getKind(const Decl *D)
Definition: DeclBase.cpp:1114
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate....
static bool BadSpecifier(T TNew, T TPrev, const char *&PrevSpec, unsigned &DiagID, bool IsExtension=true)
Definition: DeclSpec.cpp:486
StringRef Identifier
Definition: Format.cpp:2980
Defines the clang::LangOptions interface.
static bool isInvalid(LocType Loc, bool *Invalid)
Defines the SourceManager interface.
Defines various enumerations that describe declaration and type specifiers.
Defines the clang::TypeLoc interface and its subclasses.
__device__ int
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:182
const TargetInfo & getTargetInfo() const
Definition: ASTContext.h:757
The result of parsing/analyzing an expression, statement etc.
Definition: Ownership.h:153
PtrTy get() const
Definition: Ownership.h:170
bool isInvalid() const
Definition: Ownership.h:166
bool isUsable() const
Definition: Ownership.h:168
void takeAllFrom(AttributePool &pool)
Take the given pool's allocations and add them to this pool.
Definition: ParsedAttr.h:733
static bool isStaticOverloadedOperator(OverloadedOperatorKind OOK)
Returns true if the given operator is implicitly static in a record context.
Definition: DeclCXX.h:2099
Represents a C++ struct/union/class.
Definition: DeclCXX.h:258
void MakeTrivial(ASTContext &Context, NestedNameSpecifier *Qualifier, SourceRange R)
Make a new nested-name-specifier from incomplete source-location information.
Definition: DeclSpec.cpp:126
SourceLocation getLastQualifierNameLoc() const
Retrieve the location of the name in the last qualifier in this nested name specifier.
Definition: DeclSpec.cpp:145
void MakeGlobal(ASTContext &Context, SourceLocation ColonColonLoc)
Turn this (empty) nested-name-specifier into the global nested-name-specifier '::'.
Definition: DeclSpec.cpp:104
NestedNameSpecifierLoc getWithLocInContext(ASTContext &Context) const
Retrieve a nested-name-specifier with location information, copied into the given AST context.
Definition: DeclSpec.cpp:152
void MakeSuper(ASTContext &Context, CXXRecordDecl *RD, SourceLocation SuperLoc, SourceLocation ColonColonLoc)
Turns this (empty) nested-name-specifier into '__super' nested-name-specifier.
Definition: DeclSpec.cpp:114
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 'type...
Definition: DeclSpec.cpp:54
void Adopt(NestedNameSpecifierLoc Other)
Adopt an existing nested-name-specifier (with source-range information).
Definition: DeclSpec.cpp:132
Captures information about "declaration specifiers".
Definition: DeclSpec.h:246
bool isVirtualSpecified() const
Definition: DeclSpec.h:644
bool setFunctionSpecExplicit(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, ExplicitSpecifier ExplicitSpec, SourceLocation CloseParenLoc)
Definition: DeclSpec.cpp:1069
bool isModulePrivateSpecified() const
Definition: DeclSpec.h:825
static const TSCS TSCS___thread
Definition: DeclSpec.h:265
static const TST TST_typeof_unqualType
Definition: DeclSpec.h:308
bool SetTypePipe(bool isPipe, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:908
static const TST TST_typename
Definition: DeclSpec.h:305
bool hasTypeSpecifier() const
Return true if any type-specifier has been found.
Definition: DeclSpec.h:687
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:641
bool isTypeRep() const
Definition: DeclSpec.h:538
static const TST TST_char8
Definition: DeclSpec.h:281
static const TST TST_BFloat16
Definition: DeclSpec.h:288
void ClearStorageClassSpecs()
Definition: DeclSpec.h:511
bool SetConstexprSpec(ConstexprSpecKind ConstexprKind, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1128
static const TSCS TSCS__Thread_local
Definition: DeclSpec.h:267
bool SetTypeSpecWidth(TypeSpecifierWidth 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:717
TST getTypeSpecType() const
Definition: DeclSpec.h:533
Decl * DeclRep
Definition: DeclSpec.h:408
SourceLocation getStorageClassSpecLoc() const
Definition: DeclSpec.h:506
SCS getStorageClassSpec() const
Definition: DeclSpec.h:497
bool setModulePrivateSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1116
bool SetTypeSpecType(TST T, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:856
bool SetTypeSpecSat(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:880
void SetPackIndexingExpr(SourceLocation EllipsisLoc, Expr *Pack)
Definition: DeclSpec.cpp:988
bool SetStorageClassSpecThread(TSCS TSC, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:703
bool SetBitIntType(SourceLocation KWLoc, Expr *BitWidth, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:967
static const TST TST_auto_type
Definition: DeclSpec.h:318
static const TST TST_interface
Definition: DeclSpec.h:303
static const TST TST_double
Definition: DeclSpec.h:290
static const TST TST_typeofExpr
Definition: DeclSpec.h:307
unsigned getTypeQualifiers() const
getTypeQualifiers - Return a set of TQs.
Definition: DeclSpec.h:612
bool SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:925
bool SetFriendSpec(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1103
Expr * ExprRep
Definition: DeclSpec.h:409
static const TST TST_union
Definition: DeclSpec.h:301
static const TST TST_typename_pack_indexing
Definition: DeclSpec.h:312
static const TST TST_char
Definition: DeclSpec.h:279
static const TST TST_bool
Definition: DeclSpec.h:296
static const TST TST_char16
Definition: DeclSpec.h:282
SCS
storage-class-specifier
Definition: DeclSpec.h:250
SourceLocation getExplicitSpecLoc() const
Definition: DeclSpec.h:650
static const TST TST_unknown_anytype
Definition: DeclSpec.h:319
static const TST TST_int
Definition: DeclSpec.h:284
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:441
bool SetTypeSpecComplex(TSC C, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:734
bool isMissingDeclaratorOk()
Checks if this DeclSpec can stand alone, without a Declarator.
Definition: DeclSpec.cpp:1494
ParsedType getRepAsType() const
Definition: DeclSpec.h:543
TSCS getThreadStorageClassSpec() const
Definition: DeclSpec.h:498
bool setFunctionSpecNoreturn(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1088
static const TST TST_accum
Definition: DeclSpec.h:292
static const TST TST_half
Definition: DeclSpec.h:287
ParsedAttributes & getAttributes()
Definition: DeclSpec.h:869
UnionParsedType TypeRep
Definition: DeclSpec.h:407
SourceRange getExplicitSpecRange() const
Definition: DeclSpec.h:651
static const TST TST_ibm128
Definition: DeclSpec.h:295
Expr * getRepAsExpr() const
Definition: DeclSpec.h:551
static const TST TST_enum
Definition: DeclSpec.h:300
bool SetTypeAltiVecBool(bool isAltiVecBool, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:942
AttributePool & getAttributePool() const
Definition: DeclSpec.h:842
static const TST TST_float128
Definition: DeclSpec.h:294
static const TST TST_decltype
Definition: DeclSpec.h:310
static bool isDeclRep(TST T)
Definition: DeclSpec.h:465
void Finish(Sema &S, const PrintingPolicy &Policy)
Finish - This does final analysis of the declspec, issuing diagnostics for things like "_Imaginary" (...
Definition: DeclSpec.cpp:1150
static const TST TST_typeof_unqualExpr
Definition: DeclSpec.h:309
static const TST TST_class
Definition: DeclSpec.h:304
bool hasTagDefinition() const
Definition: DeclSpec.cpp:459
static const TST TST_decimal64
Definition: DeclSpec.h:298
unsigned getParsedSpecifiers() const
Return a bitmask of which flavors of specifiers this DeclSpec includes.
Definition: DeclSpec.cpp:468
bool SetTypeQual(TQ T, SourceLocation Loc)
Definition: DeclSpec.cpp:1013
static const TST TST_wchar
Definition: DeclSpec.h:280
SourceLocation getTypeSpecComplexLoc() const
Definition: DeclSpec.h:576
static const TST TST_void
Definition: DeclSpec.h:278
static const TSCS TSCS_unspecified
Definition: DeclSpec.h:264
static const TST TST_bitint
Definition: DeclSpec.h:286
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:558
static const TST TST_float
Definition: DeclSpec.h:289
static const TST TST_atomic
Definition: DeclSpec.h:320
static const TST TST_fract
Definition: DeclSpec.h:293
bool SetTypeSpecError()
Definition: DeclSpec.cpp:959
SourceLocation getThreadStorageClassSpecLoc() const
Definition: DeclSpec.h:507
Decl * getRepAsDecl() const
Definition: DeclSpec.h:547
static const TST TST_float16
Definition: DeclSpec.h:291
static const TST TST_unspecified
Definition: DeclSpec.h:277
SourceLocation getVirtualSpecLoc() const
Definition: DeclSpec.h:645
TypeSpecifierSign getTypeSpecSign() const
Definition: DeclSpec.h:530
bool isEmpty() const
isEmpty - Return true if this declaration specifier is completely empty: no tokens were parsed in the...
Definition: DeclSpec.h:700
static const TST TST_decltype_auto
Definition: DeclSpec.h:311
static const TSCS TSCS_thread_local
Definition: DeclSpec.h:266
static const TST TST_error
Definition: DeclSpec.h:324
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:453
bool setFunctionSpecVirtual(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1054
static const TST TST_decimal32
Definition: DeclSpec.h:297
bool SetTypeAltiVecVector(bool isAltiVecVector, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID, const PrintingPolicy &Policy)
Definition: DeclSpec.cpp:893
TypeSpecifierWidth getTypeSpecWidth() const
Definition: DeclSpec.h:526
static const TST TST_char32
Definition: DeclSpec.h:283
bool setFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1028
static const TST TST_decimal128
Definition: DeclSpec.h:299
static const TST TST_int128
Definition: DeclSpec.h:285
FriendSpecified isFriendSpecified() const
Definition: DeclSpec.h:817
bool hasExplicitSpecifier() const
Definition: DeclSpec.h:647
bool setFunctionSpecForceInline(SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:1042
static const TST TST_typeofType
Definition: DeclSpec.h:306
TemplateIdAnnotation * TemplateIdRep
Definition: DeclSpec.h:410
bool SetTypeSpecSign(TypeSpecifierSign S, SourceLocation Loc, const char *&PrevSpec, unsigned &DiagID)
Definition: DeclSpec.cpp:744
static const TST TST_auto
Definition: DeclSpec.h:317
@ PQ_FunctionSpecifier
Definition: DeclSpec.h:345
@ PQ_StorageClassSpecifier
Definition: DeclSpec.h:342
ConstexprSpecKind getConstexprSpecifier() const
Definition: DeclSpec.h:828
static const TST TST_struct
Definition: DeclSpec.h:302
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:85
Information about one declarator, including the parsed type information and the identifier.
Definition: DeclSpec.h:1898
bool isDeclarationOfFunction() const
Determine whether the declaration that will be produced from this declaration will be a function.
Definition: DeclSpec.cpp:325
const DeclSpec & getDeclSpec() const
getDeclSpec - Return the declaration-specifier that this declarator was declared with.
Definition: DeclSpec.h:2045
void SetIdentifier(const IdentifierInfo *Id, SourceLocation IdLoc)
Set the name of this declarator to be the given identifier.
Definition: DeclSpec.h:2337
bool isFunctionDeclarator() const
isFunctionDeclarator - Once this declarator is fully parsed and formed, this method returns true if t...
Definition: DeclSpec.h:2478
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:1985
DeclaratorContext getContext() const
Definition: DeclSpec.h:2070
bool isCtorOrDtor()
Returns true if this declares a constructor or a destructor.
Definition: DeclSpec.cpp:436
UnqualifiedId & getName()
Retrieve the name specified by this declarator.
Definition: DeclSpec.h:2064
void setDecompositionBindings(SourceLocation LSquareLoc, ArrayRef< DecompositionDeclarator::Binding > Bindings, SourceLocation RSquareLoc)
Set the decomposition bindings for this declarator.
Definition: DeclSpec.cpp:294
bool hasName() const
hasName - Whether this declarator has a name, which might be an identifier (accessible via getIdentif...
Definition: DeclSpec.h:2318
bool isExplicitObjectMemberFunction()
Definition: DeclSpec.cpp:424
bool isStaticMember()
Returns true if this declares a static member.
Definition: DeclSpec.cpp:416
DecompositionDeclarator::Binding InlineBindings[16]
Definition: DeclSpec.h:1986
DeclaratorChunk::FunctionTypeInfo & getFunctionTypeInfo()
getFunctionTypeInfo - Retrieves the function type info object (looking through parentheses).
Definition: DeclSpec.h:2485
Store information needed for an explicit specifier.
Definition: DeclCXX.h:1896
const Expr * getExpr() const
Definition: DeclCXX.h:1905
This represents one expression.
Definition: Expr.h:110
Annotates a diagnostic with some code that should be inserted, removed, or replaced to fix the proble...
Definition: Diagnostic.h:71
static FixItHint CreateRemoval(CharSourceRange RemoveRange)
Create a code modification hint that removes the given source range.
Definition: Diagnostic.h:123
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:97
One of these records is kept for each identifier that is lexed.
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:449
unsigned getOpenCLCompatibleVersion() const
Return the OpenCL version that kernel language is compatible with.
Definition: LangOptions.cpp:63
Holds a QualType and a TypeSourceInfo* that came out of a declarator parsing.
Definition: LocInfoType.h:28
This represents a decl that may have a name.
Definition: Decl.h:249
Represents a C++ namespace alias.
Definition: DeclCXX.h:3117
Represent a C++ namespace.
Definition: Decl.h:547
void Adopt(NestedNameSpecifierLoc Other)
Adopt an existing nested-name-specifier (with source-range information).
void MakeTrivial(ASTContext &Context, NestedNameSpecifier *Qualifier, SourceRange R)
Make a new nested-name-specifier from incomplete source-location information.
void Clear()
Clear out this builder, and prepare it to build another nested-name-specifier with source-location in...
NestedNameSpecifierLoc getTemporary() const
Retrieve a nested-name-specifier with location information based on the information in this builder.
void MakeSuper(ASTContext &Context, CXXRecordDecl *RD, SourceLocation SuperLoc, SourceLocation ColonColonLoc)
Turns this (empty) nested-name-specifier into '__super' nested-name-specifier.
SourceRange getSourceRange() const LLVM_READONLY
Retrieve the source range covered by this nested-name-specifier.
NestedNameSpecifier * getRepresentation() const
Retrieve the representation of the nested-name-specifier.
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 'type...
void MakeGlobal(ASTContext &Context, SourceLocation ColonColonLoc)
Turn this (empty) nested-name-specifier into the global nested-name-specifier '::'.
NestedNameSpecifierLoc getWithLocInContext(ASTContext &Context) const
Retrieve a nested-name-specifier with location information, copied into the given AST context.
A C++ nested-name-specifier augmented with source location information.
SourceLocation getLocalBeginLoc() const
Retrieve the location of the beginning of this component of the nested-name-specifier.
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
PtrTy get() const
Definition: Ownership.h:80
static OpaquePtr make(QualType P)
Definition: Ownership.h:60
bool isAvailableOption(llvm::StringRef Ext, const LangOptions &LO) const
QualType getPattern() const
Definition: Type.h:5208
Expr * getIndexExpr() const
Definition: Type.h:5207
bool hasAttribute(ParsedAttr::Kind K) const
Definition: ParsedAttr.h:911
SizeType size() const
Definition: ParsedAttr.h:837
void takeAllFrom(ParsedAttributes &Other)
Definition: ParsedAttr.h:959
A (possibly-)qualified type.
Definition: Type.h:738
bool isNull() const
Return true if this QualType doesn't point to a type yet.
Definition: Type.h:805
SemaDiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID, bool DeferHint=false)
Emit a diagnostic.
Definition: SemaBase.cpp:56
Sema - This implements semantic analysis and AST building for C.
Definition: Sema.h:442
ASTContext & Context
Definition: Sema.h:845
SourceLocation getLocForEndOfToken(SourceLocation Loc, unsigned Offset=0)
Calls Lexer::getLocForEndOfToken()
Definition: Sema.cpp:62
const LangOptions & getLangOpts() const
Definition: Sema.h:506
SourceManager & getSourceManager() const
Definition: Sema.h:511
OpenCLOptions & getOpenCLOptions()
Definition: Sema.h:507
Encodes a location in the source.
bool isValid() const
Return true if this is a valid SourceLocation object.
bool isBeforeInTranslationUnit(SourceLocation LHS, SourceLocation RHS) const
Determines the order of 2 source locations in the translation unit.
A trivial tuple used to represent a source range.
void setBegin(SourceLocation b)
SourceLocation getEnd() const
SourceLocation getBegin() const
void setEnd(SourceLocation e)
const llvm::Triple & getTriple() const
Returns the target triple of the primary target.
Definition: TargetInfo.h:1235
virtual bool hasFeature(StringRef Feature) const
Determine whether the given target has the given feature.
Definition: TargetInfo.h:1451
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:59
SourceLocation getBeginLoc() const
Get the begin source location.
Definition: TypeLoc.cpp:192
bool isFunctionType() const
Definition: Type.h:7398
struct OFI OperatorFunctionId
When Kind == IK_OperatorFunctionId, the overloaded operator that we parsed.
Definition: DeclSpec.h:1056
SourceLocation EndLocation
The location of the last token that describes this unqualified-id.
Definition: DeclSpec.h:1085
void setOperatorFunctionId(SourceLocation OperatorLoc, OverloadedOperatorKind Op, SourceLocation SymbolLocations[3])
Specify that this unqualified-id was parsed as an operator-function-id.
Definition: DeclSpec.cpp:1500
bool isValid() const
Determine whether this unqualified-id refers to a valid name.
Definition: DeclSpec.h:1100
void setTemplateId(TemplateIdAnnotation *TemplateId)
Specify that this unqualified-id was parsed as a template-id.
Definition: DeclSpec.cpp:32
void setConstructorTemplateId(TemplateIdAnnotation *TemplateId)
Specify that this unqualified-id was parsed as a template-id that names a constructor.
Definition: DeclSpec.cpp:43
SourceLocation StartLocation
The location of the first token that describes this unqualified-id, which will be the location of the...
Definition: DeclSpec.h:1082
UnqualifiedIdKind getKind() const
Determine what kind of name we have.
Definition: DeclSpec.h:1106
TemplateIdAnnotation * TemplateId
When Kind == IK_TemplateId or IK_ConstructorTemplateId, the template-id annotation that contains the ...
Definition: DeclSpec.h:1076
static const char * getSpecifierName(Specifier VS)
Definition: DeclSpec.cpp:1542
bool SetSpecifier(Specifier VS, SourceLocation Loc, const char *&PrevSpec)
Definition: DeclSpec.cpp:1516
Defines the clang::TargetInfo interface.
The JSON file list parser is used to communicate input to InstallAPI.
TypeSpecifierType
Specifies the kind of type.
Definition: Specifiers.h:55
@ TST_typeof_unqualType
Definition: Specifiers.h:87
@ TST_ibm128
Definition: Specifiers.h:74
@ TST_decimal64
Definition: Specifiers.h:77
@ TST_float
Definition: Specifiers.h:71
@ TST_auto_type
Definition: Specifiers.h:94
@ TST_auto
Definition: Specifiers.h:92
@ TST_typeof_unqualExpr
Definition: Specifiers.h:88
@ TST_decimal32
Definition: Specifiers.h:76
@ TST_int128
Definition: Specifiers.h:64
@ TST_atomic
Definition: Specifiers.h:96
@ TST_half
Definition: Specifiers.h:66
@ TST_decltype
Definition: Specifiers.h:89
@ TST_typename_pack_indexing
Definition: Specifiers.h:97
@ TST_char32
Definition: Specifiers.h:62
@ TST_struct
Definition: Specifiers.h:81
@ TST_typeofType
Definition: Specifiers.h:85
@ TST_bitint
Definition: Specifiers.h:65
@ TST_wchar
Definition: Specifiers.h:59
@ TST_BFloat16
Definition: Specifiers.h:70
@ TST_char16
Definition: Specifiers.h:61
@ TST_char
Definition: Specifiers.h:58
@ TST_unspecified
Definition: Specifiers.h:56
@ TST_class
Definition: Specifiers.h:82
@ TST_union
Definition: Specifiers.h:80
@ TST_Fract
Definition: Specifiers.h:69
@ TST_float128
Definition: Specifiers.h:73
@ TST_double
Definition: Specifiers.h:72
@ TST_Accum
Definition: Specifiers.h:68
@ TST_int
Definition: Specifiers.h:63
@ TST_bool
Definition: Specifiers.h:75
@ TST_typeofExpr
Definition: Specifiers.h:86
@ TST_typename
Definition: Specifiers.h:84
@ TST_void
Definition: Specifiers.h:57
@ TST_unknown_anytype
Definition: Specifiers.h:95
@ TST_enum
Definition: Specifiers.h:79
@ TST_error
Definition: Specifiers.h:101
@ TST_decltype_auto
Definition: Specifiers.h:93
@ TST_interface
Definition: Specifiers.h:83
@ TST_Float16
Definition: Specifiers.h:67
@ TST_char8
Definition: Specifiers.h:60
@ TST_decimal128
Definition: Specifiers.h:78
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:21
ConstexprSpecKind
Define the kind of constexpr specifier.
Definition: Specifiers.h:35
@ IK_TemplateId
A template-id, e.g., f<int>.
@ IK_ConstructorTemplateId
A constructor named via a template-id.
@ IK_ConstructorName
A constructor name.
@ IK_DestructorName
A destructor name.
@ IK_OperatorFunctionId
An overloaded operator name, e.g., operator+.
ThreadStorageClassSpecifier
Thread storage-class-specifier.
Definition: Specifiers.h:232
TypeSpecifierWidth
Specifies the width of a type, e.g., short, long, or long long.
Definition: Specifiers.h:47
TypeSpecifierSign
Specifies the signedness of a type, e.g., signed or unsigned.
Definition: Specifiers.h:50
const FunctionProtoType * T
@ Other
Other implicit parameter.
ExceptionSpecificationType
The various types of exception specifications that exist in C++11.
@ EST_DependentNoexcept
noexcept(expression), value-dependent
@ EST_Unparsed
not parsed yet
@ EST_None
no exception specification
@ EST_NoexceptFalse
noexcept(expression), evals to 'false'
@ EST_NoexceptTrue
noexcept(expression), evals to 'true'
@ EST_Dynamic
throw(T1, T2)
unsigned isVariadic
isVariadic - If this function has a prototype, and if that proto ends with ',...)',...
Definition: DeclSpec.h:1364
CachedTokens * ExceptionSpecTokens
Pointer to the cached tokens for an exception-specification that has not yet been parsed.
Definition: DeclSpec.h:1444
SourceLocation MutableLoc
The location of the 'mutable' qualifer in a lambda-declarator, if any.
Definition: DeclSpec.h:1413
UnionParsedType TrailingReturnType
If HasTrailingReturnType is true, this is the trailing return type specified.
Definition: DeclSpec.h:1454
TypeAndRange * Exceptions
Pointer to a new[]'d array of TypeAndRange objects that contain the types in the function's dynamic e...
Definition: DeclSpec.h:1436
ParamInfo * Params
Params - This is a pointer to a new[]'d array of ParamInfo objects that describe the parameters speci...
Definition: DeclSpec.h:1424
unsigned RefQualifierIsLValueRef
Whether the ref-qualifier (if any) is an lvalue reference.
Definition: DeclSpec.h:1373
NamedDecl ** DeclsInPrototype
Pointer to a new[]'d array of declarations that need to be available for lookup inside the function b...
Definition: DeclSpec.h:1449
AttributeFactory * QualAttrFactory
AttributeFactory for the MethodQualifiers.
Definition: DeclSpec.h:1430
SourceLocation ExceptionSpecLocEnd
The end location of the exception specification, if any.
Definition: DeclSpec.h:1419
SourceLocation EllipsisLoc
When isVariadic is true, the location of the ellipsis in the source.
Definition: DeclSpec.h:1392
unsigned DeleteParams
DeleteParams - If this is true, we need to delete[] Params.
Definition: DeclSpec.h:1381
DeclSpec * MethodQualifiers
DeclSpec for the function with the qualifier related info.
Definition: DeclSpec.h:1427
unsigned NumExceptionsOrDecls
NumExceptionsOrDecls - This is the number of types in the dynamic-exception-decl, if the function has...
Definition: DeclSpec.h:1404
SourceLocation RefQualifierLoc
The location of the ref-qualifier, if any.
Definition: DeclSpec.h:1409
SourceLocation RParenLoc
The location of the right parenthesis in the source.
Definition: DeclSpec.h:1395
unsigned NumParams
NumParams - This is the number of formal parameters specified by the declarator.
Definition: DeclSpec.h:1399
unsigned HasTrailingReturnType
HasTrailingReturnType - If this is true, a trailing return type was specified.
Definition: DeclSpec.h:1386
unsigned isAmbiguous
Can this declaration be a constructor-style initializer?
Definition: DeclSpec.h:1368
unsigned hasPrototype
hasPrototype - This is true if the function had at least one typed parameter.
Definition: DeclSpec.h:1358
SourceLocation LParenLoc
The location of the left parenthesis in the source.
Definition: DeclSpec.h:1389
unsigned ExceptionSpecType
ExceptionSpecType - An ExceptionSpecificationType value.
Definition: DeclSpec.h:1377
SourceLocation ExceptionSpecLocBeg
The beginning location of the exception specification, if any.
Definition: DeclSpec.h:1416
SourceLocation TrailingReturnTypeLoc
If HasTrailingReturnType is true, this is the location of the trailing return type.
Definition: DeclSpec.h:1458
Expr * NoexceptExpr
Pointer to the expression in the noexcept-specifier of this function, if it has one.
Definition: DeclSpec.h:1440
ParamInfo - An array of paraminfo objects is allocated whenever a function declarator is parsed.
Definition: DeclSpec.h:1329
One instance of this struct is used for each type in a declarator that is parsed.
Definition: DeclSpec.h:1247
SourceLocation EndLoc
EndLoc - If valid, the place where this chunck ends.
Definition: DeclSpec.h:1257
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(), SourceLocation TrailingReturnTypeLoc=SourceLocation(), DeclSpec *MethodQualifiers=nullptr)
DeclaratorChunk::getFunction - Return a DeclaratorChunk for a function.
Definition: DeclSpec.cpp:161
enum clang::DeclaratorChunk::@219 Kind
SourceLocation Loc
Loc - The place where this type was defined.
Definition: DeclSpec.h:1255
FunctionTypeInfo Fun
Definition: DeclSpec.h:1638
Wraps an identifier and optional source location for the identifier.
Definition: ParsedAttr.h:100
Describes how types, statements, expressions, and declarations should be printed.
Definition: PrettyPrinter.h:57
unsigned Bool
Whether we can use 'bool' rather than '_Bool' (even if the language doesn't actually have 'bool',...
unsigned MSWChar
When true, print the built-in wchar_t type as __wchar_t.
Information about a template-id annotation token.
SourceLocation TemplateNameLoc
TemplateNameLoc - The location of the template name within the source.
SourceLocation RAngleLoc
The location of the '>' after the template argument list.
SourceLocation SymbolLocations[3]
The source locations of the individual tokens that name the operator, e.g., the "new",...
Definition: DeclSpec.h:1044
OverloadedOperatorKind Operator
The kind of overloaded operator.
Definition: DeclSpec.h:1035