clang  7.0.0svn
ExprCXX.cpp
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1 //===- ExprCXX.cpp - (C++) Expression AST Node Implementation -------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the subclesses of Expr class declared in ExprCXX.h
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "clang/AST/ExprCXX.h"
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/Attr.h"
17 #include "clang/AST/Decl.h"
19 #include "clang/AST/DeclBase.h"
20 #include "clang/AST/DeclCXX.h"
22 #include "clang/AST/Expr.h"
25 #include "clang/AST/TemplateBase.h"
26 #include "clang/AST/Type.h"
27 #include "clang/AST/TypeLoc.h"
28 #include "clang/Basic/LLVM.h"
31 #include "clang/Basic/Specifiers.h"
32 #include "llvm/ADT/ArrayRef.h"
33 #include "llvm/Support/Casting.h"
34 #include "llvm/Support/ErrorHandling.h"
35 #include <cassert>
36 #include <cstddef>
37 #include <cstring>
38 #include <memory>
39 
40 using namespace clang;
41 
42 //===----------------------------------------------------------------------===//
43 // Child Iterators for iterating over subexpressions/substatements
44 //===----------------------------------------------------------------------===//
45 
47  // An infix binary operator is any operator with two arguments other than
48  // operator() and operator[]. Note that none of these operators can have
49  // default arguments, so it suffices to check the number of argument
50  // expressions.
51  if (getNumArgs() != 2)
52  return false;
53 
54  switch (getOperator()) {
55  case OO_Call: case OO_Subscript:
56  return false;
57  default:
58  return true;
59  }
60 }
61 
63  if (isTypeOperand())
64  return false;
65 
66  // C++11 [expr.typeid]p3:
67  // When typeid is applied to an expression other than a glvalue of
68  // polymorphic class type, [...] the expression is an unevaluated operand.
69  const Expr *E = getExprOperand();
70  if (const CXXRecordDecl *RD = E->getType()->getAsCXXRecordDecl())
71  if (RD->isPolymorphic() && E->isGLValue())
72  return true;
73 
74  return false;
75 }
76 
78  assert(isTypeOperand() && "Cannot call getTypeOperand for typeid(expr)");
79  Qualifiers Quals;
80  return Context.getUnqualifiedArrayType(
81  Operand.get<TypeSourceInfo *>()->getType().getNonReferenceType(), Quals);
82 }
83 
85  assert(isTypeOperand() && "Cannot call getTypeOperand for __uuidof(expr)");
86  Qualifiers Quals;
87  return Context.getUnqualifiedArrayType(
88  Operand.get<TypeSourceInfo *>()->getType().getNonReferenceType(), Quals);
89 }
90 
91 // CXXScalarValueInitExpr
93  return TypeInfo ? TypeInfo->getTypeLoc().getBeginLoc() : RParenLoc;
94 }
95 
96 // CXXNewExpr
97 CXXNewExpr::CXXNewExpr(const ASTContext &C, bool globalNew,
98  FunctionDecl *operatorNew, FunctionDecl *operatorDelete,
99  bool PassAlignment, bool usualArrayDeleteWantsSize,
100  ArrayRef<Expr*> placementArgs,
101  SourceRange typeIdParens, Expr *arraySize,
102  InitializationStyle initializationStyle,
103  Expr *initializer, QualType ty,
104  TypeSourceInfo *allocatedTypeInfo,
105  SourceRange Range, SourceRange directInitRange)
106  : Expr(CXXNewExprClass, ty, VK_RValue, OK_Ordinary, ty->isDependentType(),
107  ty->isDependentType(), ty->isInstantiationDependentType(),
109  OperatorNew(operatorNew), OperatorDelete(operatorDelete),
110  AllocatedTypeInfo(allocatedTypeInfo), TypeIdParens(typeIdParens),
111  Range(Range), DirectInitRange(directInitRange), GlobalNew(globalNew),
112  PassAlignment(PassAlignment),
113  UsualArrayDeleteWantsSize(usualArrayDeleteWantsSize) {
114  assert((initializer != nullptr || initializationStyle == NoInit) &&
115  "Only NoInit can have no initializer.");
116  StoredInitializationStyle = initializer ? initializationStyle + 1 : 0;
117  AllocateArgsArray(C, arraySize != nullptr, placementArgs.size(),
118  initializer != nullptr);
119  unsigned i = 0;
120  if (Array) {
121  if (arraySize->isInstantiationDependent())
122  ExprBits.InstantiationDependent = true;
123 
124  if (arraySize->containsUnexpandedParameterPack())
125  ExprBits.ContainsUnexpandedParameterPack = true;
126 
127  SubExprs[i++] = arraySize;
128  }
129 
130  if (initializer) {
131  if (initializer->isInstantiationDependent())
132  ExprBits.InstantiationDependent = true;
133 
134  if (initializer->containsUnexpandedParameterPack())
135  ExprBits.ContainsUnexpandedParameterPack = true;
136 
137  SubExprs[i++] = initializer;
138  }
139 
140  for (unsigned j = 0; j != placementArgs.size(); ++j) {
141  if (placementArgs[j]->isInstantiationDependent())
142  ExprBits.InstantiationDependent = true;
143  if (placementArgs[j]->containsUnexpandedParameterPack())
144  ExprBits.ContainsUnexpandedParameterPack = true;
145 
146  SubExprs[i++] = placementArgs[j];
147  }
148 
149  switch (getInitializationStyle()) {
150  case CallInit:
151  this->Range.setEnd(DirectInitRange.getEnd()); break;
152  case ListInit:
153  this->Range.setEnd(getInitializer()->getSourceRange().getEnd()); break;
154  default:
155  if (TypeIdParens.isValid())
156  this->Range.setEnd(TypeIdParens.getEnd());
157  break;
158  }
159 }
160 
162  unsigned numPlaceArgs, bool hasInitializer){
163  assert(SubExprs == nullptr && "SubExprs already allocated");
164  Array = isArray;
165  NumPlacementArgs = numPlaceArgs;
166 
167  unsigned TotalSize = Array + hasInitializer + NumPlacementArgs;
168  SubExprs = new (C) Stmt*[TotalSize];
169 }
170 
173  ->isNothrow() &&
175 }
176 
177 // CXXDeleteExpr
179  const Expr *Arg = getArgument();
180 
181  // For a destroying operator delete, we may have implicitly converted the
182  // pointer type to the type of the parameter of the 'operator delete'
183  // function.
184  while (const auto *ICE = dyn_cast<ImplicitCastExpr>(Arg)) {
185  if (ICE->getCastKind() == CK_DerivedToBase ||
186  ICE->getCastKind() == CK_UncheckedDerivedToBase ||
187  ICE->getCastKind() == CK_NoOp) {
188  assert((ICE->getCastKind() == CK_NoOp ||
190  "only a destroying operator delete can have a converted arg");
191  Arg = ICE->getSubExpr();
192  } else
193  break;
194  }
195 
196  // The type-to-delete may not be a pointer if it's a dependent type.
197  const QualType ArgType = Arg->getType();
198 
199  if (ArgType->isDependentType() && !ArgType->isPointerType())
200  return QualType();
201 
202  return ArgType->getAs<PointerType>()->getPointeeType();
203 }
204 
205 // CXXPseudoDestructorExpr
207  : Type(Info) {
208  Location = Info->getTypeLoc().getLocalSourceRange().getBegin();
209 }
210 
212  Expr *Base, bool isArrow, SourceLocation OperatorLoc,
213  NestedNameSpecifierLoc QualifierLoc, TypeSourceInfo *ScopeType,
214  SourceLocation ColonColonLoc, SourceLocation TildeLoc,
215  PseudoDestructorTypeStorage DestroyedType)
216  : Expr(CXXPseudoDestructorExprClass,
217  Context.BoundMemberTy,
219  /*isTypeDependent=*/(Base->isTypeDependent() ||
220  (DestroyedType.getTypeSourceInfo() &&
221  DestroyedType.getTypeSourceInfo()->getType()->isDependentType())),
222  /*isValueDependent=*/Base->isValueDependent(),
223  (Base->isInstantiationDependent() ||
224  (QualifierLoc &&
225  QualifierLoc.getNestedNameSpecifier()->isInstantiationDependent()) ||
226  (ScopeType &&
227  ScopeType->getType()->isInstantiationDependentType()) ||
228  (DestroyedType.getTypeSourceInfo() &&
229  DestroyedType.getTypeSourceInfo()->getType()
230  ->isInstantiationDependentType())),
231  // ContainsUnexpandedParameterPack
232  (Base->containsUnexpandedParameterPack() ||
233  (QualifierLoc &&
234  QualifierLoc.getNestedNameSpecifier()
235  ->containsUnexpandedParameterPack()) ||
236  (ScopeType &&
237  ScopeType->getType()->containsUnexpandedParameterPack()) ||
238  (DestroyedType.getTypeSourceInfo() &&
239  DestroyedType.getTypeSourceInfo()->getType()
240  ->containsUnexpandedParameterPack()))),
241  Base(static_cast<Stmt *>(Base)), IsArrow(isArrow),
242  OperatorLoc(OperatorLoc), QualifierLoc(QualifierLoc),
243  ScopeType(ScopeType), ColonColonLoc(ColonColonLoc), TildeLoc(TildeLoc),
244  DestroyedType(DestroyedType) {}
245 
247  if (TypeSourceInfo *TInfo = DestroyedType.getTypeSourceInfo())
248  return TInfo->getType();
249 
250  return QualType();
251 }
252 
254  SourceLocation End = DestroyedType.getLocation();
255  if (TypeSourceInfo *TInfo = DestroyedType.getTypeSourceInfo())
256  End = TInfo->getTypeLoc().getLocalSourceRange().getEnd();
257  return End;
258 }
259 
260 // UnresolvedLookupExpr
263  CXXRecordDecl *NamingClass,
264  NestedNameSpecifierLoc QualifierLoc,
265  SourceLocation TemplateKWLoc,
266  const DeclarationNameInfo &NameInfo,
267  bool ADL,
268  const TemplateArgumentListInfo *Args,
271  assert(Args || TemplateKWLoc.isValid());
272  unsigned num_args = Args ? Args->size() : 0;
273 
274  std::size_t Size =
275  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(1,
276  num_args);
277  void *Mem = C.Allocate(Size, alignof(UnresolvedLookupExpr));
278  return new (Mem) UnresolvedLookupExpr(C, NamingClass, QualifierLoc,
279  TemplateKWLoc, NameInfo,
280  ADL, /*Overload*/ true, Args,
281  Begin, End);
282 }
283 
286  bool HasTemplateKWAndArgsInfo,
287  unsigned NumTemplateArgs) {
288  assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
289  std::size_t Size =
290  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
291  HasTemplateKWAndArgsInfo, NumTemplateArgs);
292  void *Mem = C.Allocate(Size, alignof(UnresolvedLookupExpr));
293  auto *E = new (Mem) UnresolvedLookupExpr(EmptyShell());
294  E->HasTemplateKWAndArgsInfo = HasTemplateKWAndArgsInfo;
295  return E;
296 }
297 
299  NestedNameSpecifierLoc QualifierLoc,
300  SourceLocation TemplateKWLoc,
301  const DeclarationNameInfo &NameInfo,
302  const TemplateArgumentListInfo *TemplateArgs,
305  bool KnownDependent,
306  bool KnownInstantiationDependent,
307  bool KnownContainsUnexpandedParameterPack)
308  : Expr(K, C.OverloadTy, VK_LValue, OK_Ordinary, KnownDependent,
309  KnownDependent,
310  (KnownInstantiationDependent ||
311  NameInfo.isInstantiationDependent() ||
312  (QualifierLoc &&
313  QualifierLoc.getNestedNameSpecifier()->isInstantiationDependent())),
314  (KnownContainsUnexpandedParameterPack ||
315  NameInfo.containsUnexpandedParameterPack() ||
316  (QualifierLoc &&
317  QualifierLoc.getNestedNameSpecifier()
319  NameInfo(NameInfo), QualifierLoc(QualifierLoc), NumResults(End - Begin),
320  HasTemplateKWAndArgsInfo(TemplateArgs != nullptr ||
321  TemplateKWLoc.isValid()) {
322  NumResults = End - Begin;
323  if (NumResults) {
324  // Determine whether this expression is type-dependent.
325  for (UnresolvedSetImpl::const_iterator I = Begin; I != End; ++I) {
326  if ((*I)->getDeclContext()->isDependentContext() ||
327  isa<UnresolvedUsingValueDecl>(*I)) {
328  ExprBits.TypeDependent = true;
329  ExprBits.ValueDependent = true;
330  ExprBits.InstantiationDependent = true;
331  }
332  }
333 
334  Results = static_cast<DeclAccessPair *>(C.Allocate(
335  sizeof(DeclAccessPair) * NumResults, alignof(DeclAccessPair)));
336  memcpy(Results, Begin.I, NumResults * sizeof(DeclAccessPair));
337  }
338 
339  // If we have explicit template arguments, check for dependent
340  // template arguments and whether they contain any unexpanded pack
341  // expansions.
342  if (TemplateArgs) {
343  bool Dependent = false;
344  bool InstantiationDependent = false;
345  bool ContainsUnexpandedParameterPack = false;
347  TemplateKWLoc, *TemplateArgs, getTrailingTemplateArgumentLoc(),
348  Dependent, InstantiationDependent, ContainsUnexpandedParameterPack);
349 
350  if (Dependent) {
351  ExprBits.TypeDependent = true;
352  ExprBits.ValueDependent = true;
353  }
354  if (InstantiationDependent)
355  ExprBits.InstantiationDependent = true;
356  if (ContainsUnexpandedParameterPack)
357  ExprBits.ContainsUnexpandedParameterPack = true;
358  } else if (TemplateKWLoc.isValid()) {
360  }
361 
362  if (isTypeDependent())
363  setType(C.DependentTy);
364 }
365 
369  assert(!Results && "Results already initialized!");
370  NumResults = End - Begin;
371  if (NumResults) {
372  Results = static_cast<DeclAccessPair *>(
373  C.Allocate(sizeof(DeclAccessPair) * NumResults,
374 
375  alignof(DeclAccessPair)));
376  memcpy(Results, Begin.I, NumResults * sizeof(DeclAccessPair));
377  }
378 }
379 
381  if (isa<UnresolvedLookupExpr>(this))
382  return cast<UnresolvedLookupExpr>(this)->getNamingClass();
383  else
384  return cast<UnresolvedMemberExpr>(this)->getNamingClass();
385 }
386 
387 // DependentScopeDeclRefExpr
388 DependentScopeDeclRefExpr::DependentScopeDeclRefExpr(QualType T,
389  NestedNameSpecifierLoc QualifierLoc,
390  SourceLocation TemplateKWLoc,
391  const DeclarationNameInfo &NameInfo,
392  const TemplateArgumentListInfo *Args)
393  : Expr(DependentScopeDeclRefExprClass, T, VK_LValue, OK_Ordinary,
394  true, true,
395  (NameInfo.isInstantiationDependent() ||
396  (QualifierLoc &&
398  (NameInfo.containsUnexpandedParameterPack() ||
399  (QualifierLoc &&
400  QualifierLoc.getNestedNameSpecifier()
402  QualifierLoc(QualifierLoc), NameInfo(NameInfo),
403  HasTemplateKWAndArgsInfo(Args != nullptr || TemplateKWLoc.isValid())
404 {
405  if (Args) {
406  bool Dependent = true;
407  bool InstantiationDependent = true;
408  bool ContainsUnexpandedParameterPack
409  = ExprBits.ContainsUnexpandedParameterPack;
410  getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
411  TemplateKWLoc, *Args, getTrailingObjects<TemplateArgumentLoc>(),
412  Dependent, InstantiationDependent, ContainsUnexpandedParameterPack);
413  ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack;
414  } else if (TemplateKWLoc.isValid()) {
415  getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
416  TemplateKWLoc);
417  }
418 }
419 
422  NestedNameSpecifierLoc QualifierLoc,
423  SourceLocation TemplateKWLoc,
424  const DeclarationNameInfo &NameInfo,
425  const TemplateArgumentListInfo *Args) {
426  assert(QualifierLoc && "should be created for dependent qualifiers");
427  bool HasTemplateKWAndArgsInfo = Args || TemplateKWLoc.isValid();
428  std::size_t Size =
429  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
430  HasTemplateKWAndArgsInfo, Args ? Args->size() : 0);
431  void *Mem = C.Allocate(Size);
432  return new (Mem) DependentScopeDeclRefExpr(C.DependentTy, QualifierLoc,
433  TemplateKWLoc, NameInfo, Args);
434 }
435 
439  unsigned NumTemplateArgs) {
440  assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
441  std::size_t Size =
442  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
443  HasTemplateKWAndArgsInfo, NumTemplateArgs);
444  void *Mem = C.Allocate(Size);
445  auto *E =
447  SourceLocation(),
448  DeclarationNameInfo(), nullptr);
449  E->HasTemplateKWAndArgsInfo = HasTemplateKWAndArgsInfo;
450  return E;
451 }
452 
454  if (isa<CXXTemporaryObjectExpr>(this))
455  return cast<CXXTemporaryObjectExpr>(this)->getLocStart();
456  return Loc;
457 }
458 
460  if (isa<CXXTemporaryObjectExpr>(this))
461  return cast<CXXTemporaryObjectExpr>(this)->getLocEnd();
462 
463  if (ParenOrBraceRange.isValid())
464  return ParenOrBraceRange.getEnd();
465 
466  SourceLocation End = Loc;
467  for (unsigned I = getNumArgs(); I > 0; --I) {
468  const Expr *Arg = getArg(I-1);
469  if (!Arg->isDefaultArgument()) {
470  SourceLocation NewEnd = Arg->getLocEnd();
471  if (NewEnd.isValid()) {
472  End = NewEnd;
473  break;
474  }
475  }
476  }
477 
478  return End;
479 }
480 
481 SourceRange CXXOperatorCallExpr::getSourceRangeImpl() const {
482  OverloadedOperatorKind Kind = getOperator();
483  if (Kind == OO_PlusPlus || Kind == OO_MinusMinus) {
484  if (getNumArgs() == 1)
485  // Prefix operator
486  return SourceRange(getOperatorLoc(), getArg(0)->getLocEnd());
487  else
488  // Postfix operator
489  return SourceRange(getArg(0)->getLocStart(), getOperatorLoc());
490  } else if (Kind == OO_Arrow) {
491  return getArg(0)->getSourceRange();
492  } else if (Kind == OO_Call) {
493  return SourceRange(getArg(0)->getLocStart(), getRParenLoc());
494  } else if (Kind == OO_Subscript) {
495  return SourceRange(getArg(0)->getLocStart(), getRParenLoc());
496  } else if (getNumArgs() == 1) {
497  return SourceRange(getOperatorLoc(), getArg(0)->getLocEnd());
498  } else if (getNumArgs() == 2) {
499  return SourceRange(getArg(0)->getLocStart(), getArg(1)->getLocEnd());
500  } else {
501  return getOperatorLoc();
502  }
503 }
504 
506  const Expr *Callee = getCallee()->IgnoreParens();
507  if (const auto *MemExpr = dyn_cast<MemberExpr>(Callee))
508  return MemExpr->getBase();
509  if (const auto *BO = dyn_cast<BinaryOperator>(Callee))
510  if (BO->getOpcode() == BO_PtrMemD || BO->getOpcode() == BO_PtrMemI)
511  return BO->getLHS();
512 
513  // FIXME: Will eventually need to cope with member pointers.
514  return nullptr;
515 }
516 
518  if (const auto *MemExpr = dyn_cast<MemberExpr>(getCallee()->IgnoreParens()))
519  return cast<CXXMethodDecl>(MemExpr->getMemberDecl());
520 
521  // FIXME: Will eventually need to cope with member pointers.
522  return nullptr;
523 }
524 
526  Expr* ThisArg = getImplicitObjectArgument();
527  if (!ThisArg)
528  return nullptr;
529 
530  if (ThisArg->getType()->isAnyPointerType())
531  return ThisArg->getType()->getPointeeType()->getAsCXXRecordDecl();
532 
533  return ThisArg->getType()->getAsCXXRecordDecl();
534 }
535 
536 //===----------------------------------------------------------------------===//
537 // Named casts
538 //===----------------------------------------------------------------------===//
539 
540 /// getCastName - Get the name of the C++ cast being used, e.g.,
541 /// "static_cast", "dynamic_cast", "reinterpret_cast", or
542 /// "const_cast". The returned pointer must not be freed.
543 const char *CXXNamedCastExpr::getCastName() const {
544  switch (getStmtClass()) {
545  case CXXStaticCastExprClass: return "static_cast";
546  case CXXDynamicCastExprClass: return "dynamic_cast";
547  case CXXReinterpretCastExprClass: return "reinterpret_cast";
548  case CXXConstCastExprClass: return "const_cast";
549  default: return "<invalid cast>";
550  }
551 }
552 
554  ExprValueKind VK,
555  CastKind K, Expr *Op,
556  const CXXCastPath *BasePath,
557  TypeSourceInfo *WrittenTy,
558  SourceLocation L,
559  SourceLocation RParenLoc,
560  SourceRange AngleBrackets) {
561  unsigned PathSize = (BasePath ? BasePath->size() : 0);
562  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
563  auto *E =
564  new (Buffer) CXXStaticCastExpr(T, VK, K, Op, PathSize, WrittenTy, L,
565  RParenLoc, AngleBrackets);
566  if (PathSize)
567  std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
568  E->getTrailingObjects<CXXBaseSpecifier *>());
569  return E;
570 }
571 
573  unsigned PathSize) {
574  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
575  return new (Buffer) CXXStaticCastExpr(EmptyShell(), PathSize);
576 }
577 
579  ExprValueKind VK,
580  CastKind K, Expr *Op,
581  const CXXCastPath *BasePath,
582  TypeSourceInfo *WrittenTy,
583  SourceLocation L,
584  SourceLocation RParenLoc,
585  SourceRange AngleBrackets) {
586  unsigned PathSize = (BasePath ? BasePath->size() : 0);
587  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
588  auto *E =
589  new (Buffer) CXXDynamicCastExpr(T, VK, K, Op, PathSize, WrittenTy, L,
590  RParenLoc, AngleBrackets);
591  if (PathSize)
592  std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
593  E->getTrailingObjects<CXXBaseSpecifier *>());
594  return E;
595 }
596 
598  unsigned PathSize) {
599  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
600  return new (Buffer) CXXDynamicCastExpr(EmptyShell(), PathSize);
601 }
602 
603 /// isAlwaysNull - Return whether the result of the dynamic_cast is proven
604 /// to always be null. For example:
605 ///
606 /// struct A { };
607 /// struct B final : A { };
608 /// struct C { };
609 ///
610 /// C *f(B* b) { return dynamic_cast<C*>(b); }
612 {
613  QualType SrcType = getSubExpr()->getType();
614  QualType DestType = getType();
615 
616  if (const auto *SrcPTy = SrcType->getAs<PointerType>()) {
617  SrcType = SrcPTy->getPointeeType();
618  DestType = DestType->castAs<PointerType>()->getPointeeType();
619  }
620 
621  if (DestType->isVoidType())
622  return false;
623 
624  const auto *SrcRD =
625  cast<CXXRecordDecl>(SrcType->castAs<RecordType>()->getDecl());
626 
627  if (!SrcRD->hasAttr<FinalAttr>())
628  return false;
629 
630  const auto *DestRD =
631  cast<CXXRecordDecl>(DestType->castAs<RecordType>()->getDecl());
632 
633  return !DestRD->isDerivedFrom(SrcRD);
634 }
635 
638  ExprValueKind VK, CastKind K, Expr *Op,
639  const CXXCastPath *BasePath,
640  TypeSourceInfo *WrittenTy, SourceLocation L,
641  SourceLocation RParenLoc,
642  SourceRange AngleBrackets) {
643  unsigned PathSize = (BasePath ? BasePath->size() : 0);
644  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
645  auto *E =
646  new (Buffer) CXXReinterpretCastExpr(T, VK, K, Op, PathSize, WrittenTy, L,
647  RParenLoc, AngleBrackets);
648  if (PathSize)
649  std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
650  E->getTrailingObjects<CXXBaseSpecifier *>());
651  return E;
652 }
653 
656  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
657  return new (Buffer) CXXReinterpretCastExpr(EmptyShell(), PathSize);
658 }
659 
661  ExprValueKind VK, Expr *Op,
662  TypeSourceInfo *WrittenTy,
663  SourceLocation L,
664  SourceLocation RParenLoc,
665  SourceRange AngleBrackets) {
666  return new (C) CXXConstCastExpr(T, VK, Op, WrittenTy, L, RParenLoc, AngleBrackets);
667 }
668 
670  return new (C) CXXConstCastExpr(EmptyShell());
671 }
672 
675  TypeSourceInfo *Written, CastKind K, Expr *Op,
676  const CXXCastPath *BasePath,
678  unsigned PathSize = (BasePath ? BasePath->size() : 0);
679  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
680  auto *E =
681  new (Buffer) CXXFunctionalCastExpr(T, VK, Written, K, Op, PathSize, L, R);
682  if (PathSize)
683  std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
684  E->getTrailingObjects<CXXBaseSpecifier *>());
685  return E;
686 }
687 
689 CXXFunctionalCastExpr::CreateEmpty(const ASTContext &C, unsigned PathSize) {
690  void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
691  return new (Buffer) CXXFunctionalCastExpr(EmptyShell(), PathSize);
692 }
693 
695  return getTypeInfoAsWritten()->getTypeLoc().getLocStart();
696 }
697 
699  return RParenLoc.isValid() ? RParenLoc : getSubExpr()->getLocEnd();
700 }
701 
704  if (getNumArgs() == 0)
705  return LOK_Template;
706  if (getNumArgs() == 2)
707  return LOK_String;
708 
709  assert(getNumArgs() == 1 && "unexpected #args in literal operator call");
710  QualType ParamTy =
711  cast<FunctionDecl>(getCalleeDecl())->getParamDecl(0)->getType();
712  if (ParamTy->isPointerType())
713  return LOK_Raw;
714  if (ParamTy->isAnyCharacterType())
715  return LOK_Character;
716  if (ParamTy->isIntegerType())
717  return LOK_Integer;
718  if (ParamTy->isFloatingType())
719  return LOK_Floating;
720 
721  llvm_unreachable("unknown kind of literal operator");
722 }
723 
725 #ifndef NDEBUG
726  LiteralOperatorKind LOK = getLiteralOperatorKind();
727  assert(LOK != LOK_Template && LOK != LOK_Raw && "not a cooked literal");
728 #endif
729  return getArg(0);
730 }
731 
733  return cast<FunctionDecl>(getCalleeDecl())->getLiteralIdentifier();
734 }
735 
736 CXXDefaultInitExpr::CXXDefaultInitExpr(const ASTContext &C, SourceLocation Loc,
737  FieldDecl *Field, QualType T)
738  : Expr(CXXDefaultInitExprClass, T.getNonLValueExprType(C),
740  ? VK_XValue
741  : VK_RValue,
742  /*FIXME*/ OK_Ordinary, false, false, false, false),
743  Field(Field), Loc(Loc) {
744  assert(Field->hasInClassInitializer());
745 }
746 
748  const CXXDestructorDecl *Destructor) {
749  return new (C) CXXTemporary(Destructor);
750 }
751 
753  CXXTemporary *Temp,
754  Expr* SubExpr) {
755  assert((SubExpr->getType()->isRecordType() ||
756  SubExpr->getType()->isArrayType()) &&
757  "Expression bound to a temporary must have record or array type!");
758 
759  return new (C) CXXBindTemporaryExpr(Temp, SubExpr);
760 }
761 
763  CXXConstructorDecl *Cons,
764  QualType Type,
765  TypeSourceInfo *TSI,
766  ArrayRef<Expr*> Args,
767  SourceRange ParenOrBraceRange,
768  bool HadMultipleCandidates,
769  bool ListInitialization,
770  bool StdInitListInitialization,
771  bool ZeroInitialization)
772  : CXXConstructExpr(C, CXXTemporaryObjectExprClass, Type,
773  TSI->getTypeLoc().getBeginLoc(), Cons, false, Args,
774  HadMultipleCandidates, ListInitialization,
775  StdInitListInitialization, ZeroInitialization,
776  CXXConstructExpr::CK_Complete, ParenOrBraceRange),
777  Type(TSI) {}
778 
780  return Type->getTypeLoc().getBeginLoc();
781 }
782 
785  if (Loc.isInvalid() && getNumArgs())
786  Loc = getArg(getNumArgs()-1)->getLocEnd();
787  return Loc;
788 }
789 
791  SourceLocation Loc,
792  CXXConstructorDecl *Ctor,
793  bool Elidable,
794  ArrayRef<Expr*> Args,
795  bool HadMultipleCandidates,
796  bool ListInitialization,
797  bool StdInitListInitialization,
798  bool ZeroInitialization,
799  ConstructionKind ConstructKind,
800  SourceRange ParenOrBraceRange) {
801  return new (C) CXXConstructExpr(C, CXXConstructExprClass, T, Loc,
802  Ctor, Elidable, Args,
803  HadMultipleCandidates, ListInitialization,
804  StdInitListInitialization,
805  ZeroInitialization, ConstructKind,
806  ParenOrBraceRange);
807 }
808 
810  QualType T, SourceLocation Loc,
811  CXXConstructorDecl *Ctor,
812  bool Elidable,
813  ArrayRef<Expr*> Args,
814  bool HadMultipleCandidates,
815  bool ListInitialization,
816  bool StdInitListInitialization,
817  bool ZeroInitialization,
818  ConstructionKind ConstructKind,
819  SourceRange ParenOrBraceRange)
820  : Expr(SC, T, VK_RValue, OK_Ordinary,
821  T->isDependentType(), T->isDependentType(),
822  T->isInstantiationDependentType(),
824  Constructor(Ctor), Loc(Loc), ParenOrBraceRange(ParenOrBraceRange),
825  NumArgs(Args.size()), Elidable(Elidable),
826  HadMultipleCandidates(HadMultipleCandidates),
827  ListInitialization(ListInitialization),
828  StdInitListInitialization(StdInitListInitialization),
829  ZeroInitialization(ZeroInitialization), ConstructKind(ConstructKind) {
830  if (NumArgs) {
831  this->Args = new (C) Stmt*[Args.size()];
832 
833  for (unsigned i = 0; i != Args.size(); ++i) {
834  assert(Args[i] && "NULL argument in CXXConstructExpr");
835 
836  if (Args[i]->isValueDependent())
837  ExprBits.ValueDependent = true;
838  if (Args[i]->isInstantiationDependent())
839  ExprBits.InstantiationDependent = true;
840  if (Args[i]->containsUnexpandedParameterPack())
841  ExprBits.ContainsUnexpandedParameterPack = true;
842 
843  this->Args[i] = Args[i];
844  }
845  }
846 }
847 
850  SourceLocation EllipsisLoc)
851  : DeclAndBits(Var, 0), Loc(Loc), EllipsisLoc(EllipsisLoc) {
852  unsigned Bits = 0;
853  if (Implicit)
854  Bits |= Capture_Implicit;
855 
856  switch (Kind) {
857  case LCK_StarThis:
858  Bits |= Capture_ByCopy;
859  LLVM_FALLTHROUGH;
860  case LCK_This:
861  assert(!Var && "'this' capture cannot have a variable!");
862  Bits |= Capture_This;
863  break;
864 
865  case LCK_ByCopy:
866  Bits |= Capture_ByCopy;
867  LLVM_FALLTHROUGH;
868  case LCK_ByRef:
869  assert(Var && "capture must have a variable!");
870  break;
871  case LCK_VLAType:
872  assert(!Var && "VLA type capture cannot have a variable!");
873  break;
874  }
875  DeclAndBits.setInt(Bits);
876 }
877 
879  if (capturesVLAType())
880  return LCK_VLAType;
881  bool CapByCopy = DeclAndBits.getInt() & Capture_ByCopy;
882  if (capturesThis())
883  return CapByCopy ? LCK_StarThis : LCK_This;
884  return CapByCopy ? LCK_ByCopy : LCK_ByRef;
885 }
886 
887 LambdaExpr::LambdaExpr(QualType T, SourceRange IntroducerRange,
888  LambdaCaptureDefault CaptureDefault,
889  SourceLocation CaptureDefaultLoc,
890  ArrayRef<LambdaCapture> Captures, bool ExplicitParams,
891  bool ExplicitResultType, ArrayRef<Expr *> CaptureInits,
892  SourceLocation ClosingBrace,
893  bool ContainsUnexpandedParameterPack)
894  : Expr(LambdaExprClass, T, VK_RValue, OK_Ordinary, T->isDependentType(),
895  T->isDependentType(), T->isDependentType(),
896  ContainsUnexpandedParameterPack),
897  IntroducerRange(IntroducerRange), CaptureDefaultLoc(CaptureDefaultLoc),
898  NumCaptures(Captures.size()), CaptureDefault(CaptureDefault),
899  ExplicitParams(ExplicitParams), ExplicitResultType(ExplicitResultType),
900  ClosingBrace(ClosingBrace) {
901  assert(CaptureInits.size() == Captures.size() && "Wrong number of arguments");
902  CXXRecordDecl *Class = getLambdaClass();
903  CXXRecordDecl::LambdaDefinitionData &Data = Class->getLambdaData();
904 
905  // FIXME: Propagate "has unexpanded parameter pack" bit.
906 
907  // Copy captures.
908  const ASTContext &Context = Class->getASTContext();
909  Data.NumCaptures = NumCaptures;
910  Data.NumExplicitCaptures = 0;
911  Data.Captures =
912  (LambdaCapture *)Context.Allocate(sizeof(LambdaCapture) * NumCaptures);
913  LambdaCapture *ToCapture = Data.Captures;
914  for (unsigned I = 0, N = Captures.size(); I != N; ++I) {
915  if (Captures[I].isExplicit())
916  ++Data.NumExplicitCaptures;
917 
918  *ToCapture++ = Captures[I];
919  }
920 
921  // Copy initialization expressions for the non-static data members.
922  Stmt **Stored = getStoredStmts();
923  for (unsigned I = 0, N = CaptureInits.size(); I != N; ++I)
924  *Stored++ = CaptureInits[I];
925 
926  // Copy the body of the lambda.
927  *Stored++ = getCallOperator()->getBody();
928 }
929 
931  const ASTContext &Context, CXXRecordDecl *Class,
932  SourceRange IntroducerRange, LambdaCaptureDefault CaptureDefault,
933  SourceLocation CaptureDefaultLoc, ArrayRef<LambdaCapture> Captures,
934  bool ExplicitParams, bool ExplicitResultType, ArrayRef<Expr *> CaptureInits,
935  SourceLocation ClosingBrace, bool ContainsUnexpandedParameterPack) {
936  // Determine the type of the expression (i.e., the type of the
937  // function object we're creating).
938  QualType T = Context.getTypeDeclType(Class);
939 
940  unsigned Size = totalSizeToAlloc<Stmt *>(Captures.size() + 1);
941  void *Mem = Context.Allocate(Size);
942  return new (Mem)
943  LambdaExpr(T, IntroducerRange, CaptureDefault, CaptureDefaultLoc,
944  Captures, ExplicitParams, ExplicitResultType, CaptureInits,
945  ClosingBrace, ContainsUnexpandedParameterPack);
946 }
947 
949  unsigned NumCaptures) {
950  unsigned Size = totalSizeToAlloc<Stmt *>(NumCaptures + 1);
951  void *Mem = C.Allocate(Size);
952  return new (Mem) LambdaExpr(EmptyShell(), NumCaptures);
953 }
954 
956  return (C->capturesVariable() && C->getCapturedVar()->isInitCapture() &&
957  (getCallOperator() == C->getCapturedVar()->getDeclContext()));
958 }
959 
961  return getLambdaClass()->getLambdaData().Captures;
962 }
963 
965  return capture_begin() + NumCaptures;
966 }
967 
969  return capture_range(capture_begin(), capture_end());
970 }
971 
973  return capture_begin();
974 }
975 
977  struct CXXRecordDecl::LambdaDefinitionData &Data
978  = getLambdaClass()->getLambdaData();
979  return Data.Captures + Data.NumExplicitCaptures;
980 }
981 
983  return capture_range(explicit_capture_begin(), explicit_capture_end());
984 }
985 
987  return explicit_capture_end();
988 }
989 
991  return capture_end();
992 }
993 
995  return capture_range(implicit_capture_begin(), implicit_capture_end());
996 }
997 
999  return getType()->getAsCXXRecordDecl();
1000 }
1001 
1003  CXXRecordDecl *Record = getLambdaClass();
1004  return Record->getLambdaCallOperator();
1005 }
1006 
1008  CXXRecordDecl *Record = getLambdaClass();
1009  return Record->getGenericLambdaTemplateParameterList();
1010 
1011 }
1012 
1014  // FIXME: this mutation in getBody is bogus. It should be
1015  // initialized in ASTStmtReader::VisitLambdaExpr, but for reasons I
1016  // don't understand, that doesn't work.
1017  if (!getStoredStmts()[NumCaptures])
1018  *const_cast<Stmt **>(&getStoredStmts()[NumCaptures]) =
1019  getCallOperator()->getBody();
1020 
1021  return static_cast<CompoundStmt *>(getStoredStmts()[NumCaptures]);
1022 }
1023 
1025  return !getCallOperator()->isConst();
1026 }
1027 
1028 ExprWithCleanups::ExprWithCleanups(Expr *subexpr,
1029  bool CleanupsHaveSideEffects,
1030  ArrayRef<CleanupObject> objects)
1031  : Expr(ExprWithCleanupsClass, subexpr->getType(),
1032  subexpr->getValueKind(), subexpr->getObjectKind(),
1033  subexpr->isTypeDependent(), subexpr->isValueDependent(),
1034  subexpr->isInstantiationDependent(),
1035  subexpr->containsUnexpandedParameterPack()),
1036  SubExpr(subexpr) {
1037  ExprWithCleanupsBits.CleanupsHaveSideEffects = CleanupsHaveSideEffects;
1038  ExprWithCleanupsBits.NumObjects = objects.size();
1039  for (unsigned i = 0, e = objects.size(); i != e; ++i)
1040  getTrailingObjects<CleanupObject>()[i] = objects[i];
1041 }
1042 
1044  bool CleanupsHaveSideEffects,
1045  ArrayRef<CleanupObject> objects) {
1046  void *buffer = C.Allocate(totalSizeToAlloc<CleanupObject>(objects.size()),
1047  alignof(ExprWithCleanups));
1048  return new (buffer)
1049  ExprWithCleanups(subexpr, CleanupsHaveSideEffects, objects);
1050 }
1051 
1052 ExprWithCleanups::ExprWithCleanups(EmptyShell empty, unsigned numObjects)
1053  : Expr(ExprWithCleanupsClass, empty) {
1054  ExprWithCleanupsBits.NumObjects = numObjects;
1055 }
1056 
1058  EmptyShell empty,
1059  unsigned numObjects) {
1060  void *buffer = C.Allocate(totalSizeToAlloc<CleanupObject>(numObjects),
1061  alignof(ExprWithCleanups));
1062  return new (buffer) ExprWithCleanups(empty, numObjects);
1063 }
1064 
1065 CXXUnresolvedConstructExpr::CXXUnresolvedConstructExpr(TypeSourceInfo *Type,
1066  SourceLocation LParenLoc,
1067  ArrayRef<Expr*> Args,
1068  SourceLocation RParenLoc)
1069  : Expr(CXXUnresolvedConstructExprClass,
1070  Type->getType().getNonReferenceType(),
1071  (Type->getType()->isLValueReferenceType()
1072  ? VK_LValue
1073  : Type->getType()->isRValueReferenceType() ? VK_XValue
1074  : VK_RValue),
1075  OK_Ordinary,
1076  Type->getType()->isDependentType() ||
1077  Type->getType()->getContainedDeducedType(),
1078  true, true, Type->getType()->containsUnexpandedParameterPack()),
1079  Type(Type), LParenLoc(LParenLoc), RParenLoc(RParenLoc),
1080  NumArgs(Args.size()) {
1081  auto **StoredArgs = getTrailingObjects<Expr *>();
1082  for (unsigned I = 0; I != Args.size(); ++I) {
1083  if (Args[I]->containsUnexpandedParameterPack())
1084  ExprBits.ContainsUnexpandedParameterPack = true;
1085 
1086  StoredArgs[I] = Args[I];
1087  }
1088 }
1089 
1092  TypeSourceInfo *Type,
1093  SourceLocation LParenLoc,
1094  ArrayRef<Expr*> Args,
1095  SourceLocation RParenLoc) {
1096  void *Mem = C.Allocate(totalSizeToAlloc<Expr *>(Args.size()));
1097  return new (Mem) CXXUnresolvedConstructExpr(Type, LParenLoc, Args, RParenLoc);
1098 }
1099 
1102  Stmt::EmptyShell Empty;
1103  void *Mem = C.Allocate(totalSizeToAlloc<Expr *>(NumArgs));
1104  return new (Mem) CXXUnresolvedConstructExpr(Empty, NumArgs);
1105 }
1106 
1108  return Type->getTypeLoc().getBeginLoc();
1109 }
1110 
1111 CXXDependentScopeMemberExpr::CXXDependentScopeMemberExpr(
1112  const ASTContext &C, Expr *Base, QualType BaseType, bool IsArrow,
1113  SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc,
1114  SourceLocation TemplateKWLoc, NamedDecl *FirstQualifierFoundInScope,
1115  DeclarationNameInfo MemberNameInfo,
1116  const TemplateArgumentListInfo *TemplateArgs)
1117  : Expr(CXXDependentScopeMemberExprClass, C.DependentTy, VK_LValue,
1118  OK_Ordinary, true, true, true,
1119  ((Base && Base->containsUnexpandedParameterPack()) ||
1120  (QualifierLoc &&
1121  QualifierLoc.getNestedNameSpecifier()
1123  MemberNameInfo.containsUnexpandedParameterPack())),
1124  Base(Base), BaseType(BaseType), IsArrow(IsArrow),
1125  HasTemplateKWAndArgsInfo(TemplateArgs != nullptr ||
1126  TemplateKWLoc.isValid()),
1127  OperatorLoc(OperatorLoc), QualifierLoc(QualifierLoc),
1128  FirstQualifierFoundInScope(FirstQualifierFoundInScope),
1129  MemberNameInfo(MemberNameInfo) {
1130  if (TemplateArgs) {
1131  bool Dependent = true;
1132  bool InstantiationDependent = true;
1133  bool ContainsUnexpandedParameterPack = false;
1134  getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
1135  TemplateKWLoc, *TemplateArgs, getTrailingObjects<TemplateArgumentLoc>(),
1136  Dependent, InstantiationDependent, ContainsUnexpandedParameterPack);
1137  if (ContainsUnexpandedParameterPack)
1138  ExprBits.ContainsUnexpandedParameterPack = true;
1139  } else if (TemplateKWLoc.isValid()) {
1140  getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
1141  TemplateKWLoc);
1142  }
1143 }
1144 
1147  Expr *Base, QualType BaseType, bool IsArrow,
1148  SourceLocation OperatorLoc,
1149  NestedNameSpecifierLoc QualifierLoc,
1150  SourceLocation TemplateKWLoc,
1151  NamedDecl *FirstQualifierFoundInScope,
1152  DeclarationNameInfo MemberNameInfo,
1153  const TemplateArgumentListInfo *TemplateArgs) {
1154  bool HasTemplateKWAndArgsInfo = TemplateArgs || TemplateKWLoc.isValid();
1155  unsigned NumTemplateArgs = TemplateArgs ? TemplateArgs->size() : 0;
1156  std::size_t Size =
1157  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
1158  HasTemplateKWAndArgsInfo, NumTemplateArgs);
1159 
1160  void *Mem = C.Allocate(Size, alignof(CXXDependentScopeMemberExpr));
1161  return new (Mem) CXXDependentScopeMemberExpr(C, Base, BaseType,
1162  IsArrow, OperatorLoc,
1163  QualifierLoc,
1164  TemplateKWLoc,
1165  FirstQualifierFoundInScope,
1166  MemberNameInfo, TemplateArgs);
1167 }
1168 
1171  bool HasTemplateKWAndArgsInfo,
1172  unsigned NumTemplateArgs) {
1173  assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
1174  std::size_t Size =
1175  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
1176  HasTemplateKWAndArgsInfo, NumTemplateArgs);
1177  void *Mem = C.Allocate(Size, alignof(CXXDependentScopeMemberExpr));
1178  auto *E =
1179  new (Mem) CXXDependentScopeMemberExpr(C, nullptr, QualType(),
1180  false, SourceLocation(),
1182  SourceLocation(), nullptr,
1183  DeclarationNameInfo(), nullptr);
1184  E->HasTemplateKWAndArgsInfo = HasTemplateKWAndArgsInfo;
1185  return E;
1186 }
1187 
1189  if (!Base)
1190  return true;
1191 
1192  return cast<Expr>(Base)->isImplicitCXXThis();
1193 }
1194 
1196  UnresolvedSetIterator end) {
1197  do {
1198  NamedDecl *decl = *begin;
1199  if (isa<UnresolvedUsingValueDecl>(decl))
1200  return false;
1201 
1202  // Unresolved member expressions should only contain methods and
1203  // method templates.
1204  if (cast<CXXMethodDecl>(decl->getUnderlyingDecl()->getAsFunction())
1205  ->isStatic())
1206  return false;
1207  } while (++begin != end);
1208 
1209  return true;
1210 }
1211 
1212 UnresolvedMemberExpr::UnresolvedMemberExpr(const ASTContext &C,
1213  bool HasUnresolvedUsing,
1214  Expr *Base, QualType BaseType,
1215  bool IsArrow,
1216  SourceLocation OperatorLoc,
1217  NestedNameSpecifierLoc QualifierLoc,
1218  SourceLocation TemplateKWLoc,
1219  const DeclarationNameInfo &MemberNameInfo,
1220  const TemplateArgumentListInfo *TemplateArgs,
1223  : OverloadExpr(
1224  UnresolvedMemberExprClass, C, QualifierLoc, TemplateKWLoc,
1225  MemberNameInfo, TemplateArgs, Begin, End,
1226  // Dependent
1227  ((Base && Base->isTypeDependent()) || BaseType->isDependentType()),
1228  ((Base && Base->isInstantiationDependent()) ||
1229  BaseType->isInstantiationDependentType()),
1230  // Contains unexpanded parameter pack
1231  ((Base && Base->containsUnexpandedParameterPack()) ||
1232  BaseType->containsUnexpandedParameterPack())),
1233  IsArrow(IsArrow), HasUnresolvedUsing(HasUnresolvedUsing), Base(Base),
1234  BaseType(BaseType), OperatorLoc(OperatorLoc) {
1235  // Check whether all of the members are non-static member functions,
1236  // and if so, mark give this bound-member type instead of overload type.
1237  if (hasOnlyNonStaticMemberFunctions(Begin, End))
1238  setType(C.BoundMemberTy);
1239 }
1240 
1242  if (!Base)
1243  return true;
1244 
1245  return cast<Expr>(Base)->isImplicitCXXThis();
1246 }
1247 
1249  const ASTContext &C, bool HasUnresolvedUsing, Expr *Base, QualType BaseType,
1250  bool IsArrow, SourceLocation OperatorLoc,
1251  NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc,
1252  const DeclarationNameInfo &MemberNameInfo,
1253  const TemplateArgumentListInfo *TemplateArgs, UnresolvedSetIterator Begin,
1254  UnresolvedSetIterator End) {
1255  bool HasTemplateKWAndArgsInfo = TemplateArgs || TemplateKWLoc.isValid();
1256  std::size_t Size =
1257  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
1258  HasTemplateKWAndArgsInfo, TemplateArgs ? TemplateArgs->size() : 0);
1259 
1260  void *Mem = C.Allocate(Size, alignof(UnresolvedMemberExpr));
1261  return new (Mem) UnresolvedMemberExpr(
1262  C, HasUnresolvedUsing, Base, BaseType, IsArrow, OperatorLoc, QualifierLoc,
1263  TemplateKWLoc, MemberNameInfo, TemplateArgs, Begin, End);
1264 }
1265 
1268  bool HasTemplateKWAndArgsInfo,
1269  unsigned NumTemplateArgs) {
1270  assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
1271  std::size_t Size =
1272  totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
1273  HasTemplateKWAndArgsInfo, NumTemplateArgs);
1274 
1275  void *Mem = C.Allocate(Size, alignof(UnresolvedMemberExpr));
1276  auto *E = new (Mem) UnresolvedMemberExpr(EmptyShell());
1277  E->HasTemplateKWAndArgsInfo = HasTemplateKWAndArgsInfo;
1278  return E;
1279 }
1280 
1282  // Unlike for UnresolvedLookupExpr, it is very easy to re-derive this.
1283 
1284  // If there was a nested name specifier, it names the naming class.
1285  // It can't be dependent: after all, we were actually able to do the
1286  // lookup.
1287  CXXRecordDecl *Record = nullptr;
1288  auto *NNS = getQualifier();
1289  if (NNS && NNS->getKind() != NestedNameSpecifier::Super) {
1290  const Type *T = getQualifier()->getAsType();
1291  assert(T && "qualifier in member expression does not name type");
1292  Record = T->getAsCXXRecordDecl();
1293  assert(Record && "qualifier in member expression does not name record");
1294  }
1295  // Otherwise the naming class must have been the base class.
1296  else {
1297  QualType BaseType = getBaseType().getNonReferenceType();
1298  if (isArrow()) {
1299  const auto *PT = BaseType->getAs<PointerType>();
1300  assert(PT && "base of arrow member access is not pointer");
1301  BaseType = PT->getPointeeType();
1302  }
1303 
1304  Record = BaseType->getAsCXXRecordDecl();
1305  assert(Record && "base of member expression does not name record");
1306  }
1307 
1308  return Record;
1309 }
1310 
1313  NamedDecl *Pack, SourceLocation PackLoc,
1314  SourceLocation RParenLoc,
1315  Optional<unsigned> Length,
1316  ArrayRef<TemplateArgument> PartialArgs) {
1317  void *Storage =
1318  Context.Allocate(totalSizeToAlloc<TemplateArgument>(PartialArgs.size()));
1319  return new (Storage) SizeOfPackExpr(Context.getSizeType(), OperatorLoc, Pack,
1320  PackLoc, RParenLoc, Length, PartialArgs);
1321 }
1322 
1324  unsigned NumPartialArgs) {
1325  void *Storage =
1326  Context.Allocate(totalSizeToAlloc<TemplateArgument>(NumPartialArgs));
1327  return new (Storage) SizeOfPackExpr(EmptyShell(), NumPartialArgs);
1328 }
1329 
1330 SubstNonTypeTemplateParmPackExpr::
1331 SubstNonTypeTemplateParmPackExpr(QualType T,
1332  ExprValueKind ValueKind,
1333  NonTypeTemplateParmDecl *Param,
1334  SourceLocation NameLoc,
1335  const TemplateArgument &ArgPack)
1336  : Expr(SubstNonTypeTemplateParmPackExprClass, T, ValueKind, OK_Ordinary,
1337  true, true, true, true),
1338  Param(Param), Arguments(ArgPack.pack_begin()),
1339  NumArguments(ArgPack.pack_size()), NameLoc(NameLoc) {}
1340 
1342  return TemplateArgument(llvm::makeArrayRef(Arguments, NumArguments));
1343 }
1344 
1345 FunctionParmPackExpr::FunctionParmPackExpr(QualType T, ParmVarDecl *ParamPack,
1346  SourceLocation NameLoc,
1347  unsigned NumParams,
1348  ParmVarDecl *const *Params)
1349  : Expr(FunctionParmPackExprClass, T, VK_LValue, OK_Ordinary, true, true,
1350  true, true),
1351  ParamPack(ParamPack), NameLoc(NameLoc), NumParameters(NumParams) {
1352  if (Params)
1353  std::uninitialized_copy(Params, Params + NumParams,
1354  getTrailingObjects<ParmVarDecl *>());
1355 }
1356 
1359  ParmVarDecl *ParamPack, SourceLocation NameLoc,
1360  ArrayRef<ParmVarDecl *> Params) {
1361  return new (Context.Allocate(totalSizeToAlloc<ParmVarDecl *>(Params.size())))
1362  FunctionParmPackExpr(T, ParamPack, NameLoc, Params.size(), Params.data());
1363 }
1364 
1367  unsigned NumParams) {
1368  return new (Context.Allocate(totalSizeToAlloc<ParmVarDecl *>(NumParams)))
1369  FunctionParmPackExpr(QualType(), nullptr, SourceLocation(), 0, nullptr);
1370 }
1371 
1373  unsigned ManglingNumber) {
1374  // We only need extra state if we have to remember more than just the Stmt.
1375  if (!ExtendedBy)
1376  return;
1377 
1378  // We may need to allocate extra storage for the mangling number and the
1379  // extended-by ValueDecl.
1380  if (!State.is<ExtraState *>()) {
1381  auto *ES = new (ExtendedBy->getASTContext()) ExtraState;
1382  ES->Temporary = State.get<Stmt *>();
1383  State = ES;
1384  }
1385 
1386  auto ES = State.get<ExtraState *>();
1387  ES->ExtendingDecl = ExtendedBy;
1388  ES->ManglingNumber = ManglingNumber;
1389 }
1390 
1391 TypeTraitExpr::TypeTraitExpr(QualType T, SourceLocation Loc, TypeTrait Kind,
1393  SourceLocation RParenLoc,
1394  bool Value)
1395  : Expr(TypeTraitExprClass, T, VK_RValue, OK_Ordinary,
1396  /*TypeDependent=*/false,
1397  /*ValueDependent=*/false,
1398  /*InstantiationDependent=*/false,
1399  /*ContainsUnexpandedParameterPack=*/false),
1400  Loc(Loc), RParenLoc(RParenLoc) {
1401  TypeTraitExprBits.Kind = Kind;
1402  TypeTraitExprBits.Value = Value;
1403  TypeTraitExprBits.NumArgs = Args.size();
1404 
1405  auto **ToArgs = getTrailingObjects<TypeSourceInfo *>();
1406 
1407  for (unsigned I = 0, N = Args.size(); I != N; ++I) {
1408  if (Args[I]->getType()->isDependentType())
1409  setValueDependent(true);
1410  if (Args[I]->getType()->isInstantiationDependentType())
1412  if (Args[I]->getType()->containsUnexpandedParameterPack())
1414 
1415  ToArgs[I] = Args[I];
1416  }
1417 }
1418 
1420  SourceLocation Loc,
1421  TypeTrait Kind,
1423  SourceLocation RParenLoc,
1424  bool Value) {
1425  void *Mem = C.Allocate(totalSizeToAlloc<TypeSourceInfo *>(Args.size()));
1426  return new (Mem) TypeTraitExpr(T, Loc, Kind, Args, RParenLoc, Value);
1427 }
1428 
1430  unsigned NumArgs) {
1431  void *Mem = C.Allocate(totalSizeToAlloc<TypeSourceInfo *>(NumArgs));
1432  return new (Mem) TypeTraitExpr(EmptyShell());
1433 }
1434 
1435 void ArrayTypeTraitExpr::anchor() {}
void setValueDependent(bool VD)
Set whether this expression is value-dependent or not.
Definition: Expr.h:152
CXXRecordDecl * getNamingClass() const
Retrieve the naming class of this lookup.
Definition: ExprCXX.cpp:1281
Defines the clang::ASTContext interface.
LiteralOperatorKind
The kind of literal operator which is invoked.
Definition: ExprCXX.h:475
VarDecl * getCapturedVar() const
Retrieve the declaration of the local variable being captured.
capture_iterator explicit_capture_end() const
Retrieve an iterator pointing past the end of the sequence of explicit lambda captures.
Definition: ExprCXX.cpp:976
Represents a function declaration or definition.
Definition: Decl.h:1714
bool isReservedGlobalPlacementOperator() const
Determines whether this operator new or delete is one of the reserved global placement operators: voi...
Definition: Decl.cpp:2726
QualType getTypeOperand(ASTContext &Context) const
Retrieves the type operand of this __uuidof() expression after various required adjustments (removing...
Definition: ExprCXX.cpp:84
if(T->getSizeExpr()) TRY_TO(TraverseStmt(T -> getSizeExpr()))
PointerType - C99 6.7.5.1 - Pointer Declarators.
Definition: Type.h:2375
Stores the type being destroyed by a pseudo-destructor expression.
Definition: ExprCXX.h:2149
A (possibly-)qualified type.
Definition: Type.h:655
bool isArrayType() const
Definition: Type.h:6098
static const TemplateArgument & getArgument(const TemplateArgument &A)
capture_iterator capture_end() const
Retrieve an iterator pointing past the end of the sequence of lambda captures.
Definition: ExprCXX.cpp:964
Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack)
Definition: Expr.h:110
__SIZE_TYPE__ size_t
The unsigned integer type of the result of the sizeof operator.
Definition: opencl-c.h:60
static CXXDependentScopeMemberExpr * Create(const ASTContext &C, Expr *Base, QualType BaseType, bool IsArrow, SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc, NamedDecl *FirstQualifierFoundInScope, DeclarationNameInfo MemberNameInfo, const TemplateArgumentListInfo *TemplateArgs)
Definition: ExprCXX.cpp:1146
A type trait used in the implementation of various C++11 and Library TR1 trait templates.
Definition: ExprCXX.h:2342
static UnresolvedLookupExpr * Create(const ASTContext &C, CXXRecordDecl *NamingClass, NestedNameSpecifierLoc QualifierLoc, const DeclarationNameInfo &NameInfo, bool ADL, bool Overloaded, UnresolvedSetIterator Begin, UnresolvedSetIterator End)
Definition: ExprCXX.h:2784
Stmt - This represents one statement.
Definition: Stmt.h:66
unsigned getNumArgs() const
getNumArgs - Return the number of actual arguments to this call.
Definition: Expr.h:2340
LambdaCapture(SourceLocation Loc, bool Implicit, LambdaCaptureKind Kind, VarDecl *Var=nullptr, SourceLocation EllipsisLoc=SourceLocation())
Create a new capture of a variable or of this.
Definition: ExprCXX.cpp:848
QualType getPointeeType() const
If this is a pointer, ObjC object pointer, or block pointer, this returns the respective pointee...
Definition: Type.cpp:460
static CXXDynamicCastExpr * Create(const ASTContext &Context, QualType T, ExprValueKind VK, CastKind Kind, Expr *Op, const CXXCastPath *Path, TypeSourceInfo *Written, SourceLocation L, SourceLocation RParenLoc, SourceRange AngleBrackets)
Definition: ExprCXX.cpp:578
C Language Family Type Representation.
Microsoft&#39;s &#39;__super&#39; specifier, stored as a CXXRecordDecl* of the class it appeared in...
bool isRecordType() const
Definition: Type.h:6122
Expr * getImplicitObjectArgument() const
Retrieves the implicit object argument for the member call.
Definition: ExprCXX.cpp:505
FunctionDecl * getOperatorNew() const
Definition: ExprCXX.h:1945
LambdaCaptureDefault
The default, if any, capture method for a lambda expression.
Definition: Lambda.h:23
void setType(QualType t)
Definition: Expr.h:129
A reference to a name which we were able to look up during parsing but could not resolve to a specifi...
Definition: ExprCXX.h:2739
QualType getNonReferenceType() const
If Type is a reference type (e.g., const int&), returns the type that the reference refers to ("const...
Definition: Type.h:5998
The base class of the type hierarchy.
Definition: Type.h:1421
Represents a call to a C++ constructor.
Definition: ExprCXX.h:1239
A container of type source information.
Definition: Decl.h:86
bool isInstantiationDependent() const
Determine whether this name involves a template parameter.
SourceLocation getLocStart() const LLVM_READONLY
Definition: ExprCXX.cpp:694
static CXXFunctionalCastExpr * Create(const ASTContext &Context, QualType T, ExprValueKind VK, TypeSourceInfo *Written, CastKind Kind, Expr *Op, const CXXCastPath *Path, SourceLocation LPLoc, SourceLocation RPLoc)
Definition: ExprCXX.cpp:674
Describes the capture of a variable or of this, or of a C++1y init-capture.
Definition: LambdaCapture.h:26
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2463
SourceLocation getLocEnd() const LLVM_READONLY
Definition: ExprCXX.cpp:783
bool hasInClassInitializer() const
Determine whether this member has a C++11 default member initializer.
Definition: Decl.h:2656
capture_range implicit_captures() const
Retrieve this lambda&#39;s implicit captures.
Definition: ExprCXX.cpp:994
SourceRange getSourceRange() const LLVM_READONLY
Definition: ExprCXX.h:2055
CXXRecordDecl * getRecordDecl() const
Retrieves the CXXRecordDecl for the underlying type of the implicit object argument.
Definition: ExprCXX.cpp:525
Represents a variable declaration or definition.
Definition: Decl.h:812
SourceLocation getLocEnd() const LLVM_READONLY
Definition: ExprCXX.cpp:253
const T * getAs() const
Member-template getAs<specific type>&#39;.
Definition: Type.h:6456
static FunctionParmPackExpr * CreateEmpty(const ASTContext &Context, unsigned NumParams)
Definition: ExprCXX.cpp:1366
static DependentScopeDeclRefExpr * CreateEmpty(const ASTContext &C, bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs)
Definition: ExprCXX.cpp:437
NamedDecl * getUnderlyingDecl()
Looks through UsingDecls and ObjCCompatibleAliasDecls for the underlying named decl.
Definition: Decl.h:431
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:68
void setContainsUnexpandedParameterPack(bool PP=true)
Set the bit that describes whether this expression contains an unexpanded parameter pack...
Definition: Expr.h:220
void initializeResults(const ASTContext &C, UnresolvedSetIterator Begin, UnresolvedSetIterator End)
Definition: ExprCXX.cpp:366
Represents an expression – generally a full-expression – that introduces cleanups to be run at the ...
Definition: ExprCXX.h:3003
Represents a parameter to a function.
Definition: Decl.h:1533
TemplateParameterList * getGenericLambdaTemplateParameterList() const
Retrieve the generic lambda&#39;s template parameter list.
Definition: DeclCXX.cpp:1379
Defines the clang::Expr interface and subclasses for C++ expressions.
The collection of all-type qualifiers we support.
Definition: Type.h:154
CXXRecordDecl * getLambdaClass() const
Retrieve the class that corresponds to the lambda.
Definition: ExprCXX.cpp:998
A C++ static_cast expression (C++ [expr.static.cast]).
Definition: ExprCXX.h:302
void AllocateArgsArray(const ASTContext &C, bool isArray, unsigned numPlaceArgs, bool hasInitializer)
Definition: ExprCXX.cpp:161
One of these records is kept for each identifier that is lexed.
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:150
A C++ nested-name-specifier augmented with source location information.
LineState State
static CXXConstructExpr * Create(const ASTContext &C, QualType T, SourceLocation Loc, CXXConstructorDecl *Ctor, bool Elidable, ArrayRef< Expr *> Args, bool HadMultipleCandidates, bool ListInitialization, bool StdInitListInitialization, bool ZeroInitialization, ConstructionKind ConstructKind, SourceRange ParenOrBraceRange)
Definition: ExprCXX.cpp:790
LambdaCaptureKind
The different capture forms in a lambda introducer.
Definition: Lambda.h:34
Represents a member of a struct/union/class.
Definition: Decl.h:2521
CompoundStmt * getBody() const
Retrieve the body of the lambda.
Definition: ExprCXX.cpp:1013
The iterator over UnresolvedSets.
Definition: UnresolvedSet.h:32
QualType getDestroyedType() const
Retrieve the type being destroyed.
Definition: ExprCXX.cpp:246
capture_iterator implicit_capture_end() const
Retrieve an iterator pointing past the end of the sequence of implicit lambda captures.
Definition: ExprCXX.cpp:990
Represents a C++ member access expression for which lookup produced a set of overloaded functions...
Definition: ExprCXX.h:3442
An r-value expression (a pr-value in the C++11 taxonomy) produces a temporary value.
Definition: Specifiers.h:110
bool isGLValue() const
Definition: Expr.h:252
TemplateArgument getArgumentPack() const
Retrieve the template argument pack containing the substituted template arguments.
Definition: ExprCXX.cpp:1341
< Capturing the *this object by copy
Definition: Lambda.h:37
bool capturesThis() const
Determine whether this capture handles the C++ this pointer.
Definition: LambdaCapture.h:83
A convenient class for passing around template argument information.
Definition: TemplateBase.h:546
SourceLocation getLocation() const
Definition: ExprCXX.h:2173
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
Expr * getInitializer()
The initializer of this new-expression.
Definition: ExprCXX.h:1990
ExprValueKind getValueKind() const
getValueKind - The value kind that this expression produces.
Definition: Expr.h:405
An x-value expression is a reference to an object with independent storage but which can be "moved"...
Definition: Specifiers.h:119
bool containsUnexpandedParameterPack() const
Whether this type is or contains an unexpanded parameter pack, used to support C++0x variadic templat...
Definition: Type.h:1703
bool isRValueReferenceType() const
Definition: Type.h:6069
New-expression has a C++98 paren-delimited initializer.
Definition: ExprCXX.h:1900
SourceLocation getLocEnd() const LLVM_READONLY
Definition: ExprCXX.cpp:459
Represents binding an expression to a temporary.
Definition: ExprCXX.h:1196
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
Definition: ExprCXX.h:1583
bool isTypeDependent() const
isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next.
Definition: Expr.h:167
An ordinary object is located at an address in memory.
Definition: Specifiers.h:126
Represents a C++ member access expression where the actual member referenced could not be resolved be...
Definition: ExprCXX.h:3205
bool containsUnexpandedParameterPack() const
Determine whether this name contains an unexpanded parameter pack.
bool isInitCapture(const LambdaCapture *Capture) const
Determine whether one of this lambda&#39;s captures is an init-capture.
Definition: ExprCXX.cpp:955
StmtClass
Definition: Stmt.h:68
const IdentifierInfo * getUDSuffix() const
Returns the ud-suffix specified for this literal.
Definition: ExprCXX.cpp:732
New-expression has no initializer as written.
Definition: ExprCXX.h:1897
TypeTrait
Names for traits that operate specifically on types.
Definition: TypeTraits.h:21
bool isInstantiationDependent() const
Whether this nested name specifier involves a template parameter.
ASTTemplateKWAndArgsInfo * getTrailingASTTemplateKWAndArgsInfo()
Return the optional template keyword and arguments info.
Definition: ExprCXX.h:3578
CompoundStmt - This represents a group of statements like { stmt stmt }.
Definition: Stmt.h:609
CXXRecordDecl * getAsCXXRecordDecl() const
Retrieves the CXXRecordDecl that this type refers to, either because the type is a RecordType or beca...
Definition: Type.cpp:1590
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3369
CastKind
CastKind - The kind of operation required for a conversion.
SourceRange getLocalSourceRange() const
Get the local source range.
Definition: TypeLoc.h:158
SourceLocation getLocEnd() const LLVM_READONLY
Definition: Stmt.cpp:291
bool HasTemplateKWAndArgsInfo
Whether the name includes info for explicit template keyword and arguments.
Definition: ExprCXX.h:2569
CXXRecordDecl * getNamingClass() const
Gets the naming class of this lookup, if any.
Definition: ExprCXX.cpp:380
SourceLocation getBeginLoc() const
Get the begin source location.
Definition: TypeLoc.cpp:190
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:636
Expr - This represents one expression.
Definition: Expr.h:106
SourceLocation End
static TypeTraitExpr * Create(const ASTContext &C, QualType T, SourceLocation Loc, TypeTrait Kind, ArrayRef< TypeSourceInfo *> Args, SourceLocation RParenLoc, bool Value)
Create a new type trait expression.
Definition: ExprCXX.cpp:1419
ExprValueKind
The categorization of expression values, currently following the C++11 scheme.
Definition: Specifiers.h:107
const FunctionProtoType * T
SourceLocation getLocStart() const LLVM_READONLY
Definition: ExprCXX.cpp:779
bool isImplicitAccess() const
True if this is an implicit access, i.e., one in which the member being accessed was not written in t...
Definition: ExprCXX.cpp:1241
const T * castAs() const
Member-template castAs<specific type>.
Definition: Type.h:6519
A C++ const_cast expression (C++ [expr.const.cast]).
Definition: ExprCXX.h:420
Represents a C++ destructor within a class.
Definition: DeclCXX.h:2686
New-expression has a C++11 list-initializer.
Definition: ExprCXX.h:1903
static CXXUnresolvedConstructExpr * Create(const ASTContext &C, TypeSourceInfo *Type, SourceLocation LParenLoc, ArrayRef< Expr *> Args, SourceLocation RParenLoc)
Definition: ExprCXX.cpp:1091
const internal::VariadicAllOfMatcher< Decl > decl
Matches declarations.
bool isImplicitAccess() const
True if this is an implicit access, i.e.
Definition: ExprCXX.cpp:1188
Defines an enumeration for C++ overloaded operators.
static CXXStaticCastExpr * Create(const ASTContext &Context, QualType T, ExprValueKind VK, CastKind K, Expr *Op, const CXXCastPath *Path, TypeSourceInfo *Written, SourceLocation L, SourceLocation RParenLoc, SourceRange AngleBrackets)
Definition: ExprCXX.cpp:553
static CXXReinterpretCastExpr * CreateEmpty(const ASTContext &Context, unsigned pathSize)
Definition: ExprCXX.cpp:655
DeclContext * getDeclContext()
Definition: DeclBase.h:426
ExprBitfields ExprBits
Definition: Stmt.h:298
SourceLocation Begin
Represents an expression that computes the length of a parameter pack.
Definition: ExprCXX.h:3727
NonTypeTemplateParmDecl - Declares a non-type template parameter, e.g., "Size" in.
static DependentScopeDeclRefExpr * Create(const ASTContext &C, NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc, const DeclarationNameInfo &NameInfo, const TemplateArgumentListInfo *TemplateArgs)
Definition: ExprCXX.cpp:421
Defines the clang::TypeLoc interface and its subclasses.
QualType getType() const
Definition: Expr.h:128
static LambdaExpr * Create(const ASTContext &C, CXXRecordDecl *Class, SourceRange IntroducerRange, LambdaCaptureDefault CaptureDefault, SourceLocation CaptureDefaultLoc, ArrayRef< LambdaCapture > Captures, bool ExplicitParams, bool ExplicitResultType, ArrayRef< Expr *> CaptureInits, SourceLocation ClosingBrace, bool ContainsUnexpandedParameterPack)
Construct a new lambda expression.
Definition: ExprCXX.cpp:930
bool hasInitializer() const
Whether this new-expression has any initializer at all.
Definition: ExprCXX.h:1980
SourceLocation getEnd() const
CXXMethodDecl * getMethodDecl() const
Retrieves the declaration of the called method.
Definition: ExprCXX.cpp:517
QualType getTypeOperand(ASTContext &Context) const
Retrieves the type operand of this typeid() expression after various required adjustments (removing r...
Definition: ExprCXX.cpp:77
QualType getTypeDeclType(const TypeDecl *Decl, const TypeDecl *PrevDecl=nullptr) const
Return the unique reference to the type for the specified type declaration.
Definition: ASTContext.h:1369
QualType getDestroyedType() const
Retrieve the type being destroyed.
Definition: ExprCXX.cpp:178
CXXMethodDecl * getCallOperator() const
Retrieve the function call operator associated with this lambda expression.
Definition: ExprCXX.cpp:1002
ExprObjectKind getObjectKind() const
getObjectKind - The object kind that this expression produces.
Definition: Expr.h:412
bool capturesVariable() const
Determine whether this capture handles a variable.
Definition: LambdaCapture.h:89
LiteralOperatorKind getLiteralOperatorKind() const
Returns the kind of literal operator invocation which this expression represents. ...
Definition: ExprCXX.cpp:703
bool containsUnexpandedParameterPack() const
Whether this nested-name-specifier contains an unexpanded parameter pack (for C++11 variadic template...
A C++ dynamic_cast expression (C++ [expr.dynamic.cast]).
Definition: ExprCXX.h:338
SourceLocation getLocStart() const LLVM_READONLY
Definition: ExprCXX.cpp:92
#define false
Definition: stdbool.h:33
static CXXConstCastExpr * Create(const ASTContext &Context, QualType T, ExprValueKind VK, Expr *Op, TypeSourceInfo *WrittenTy, SourceLocation L, SourceLocation RParenLoc, SourceRange AngleBrackets)
Definition: ExprCXX.cpp:660
Kind
static CXXBindTemporaryExpr * Create(const ASTContext &C, CXXTemporary *Temp, Expr *SubExpr)
Definition: ExprCXX.cpp:752
A reference to an overloaded function set, either an UnresolvedLookupExpr or an UnresolvedMemberExpr...
Definition: ExprCXX.h:2551
capture_iterator implicit_capture_begin() const
Retrieve an iterator pointing to the first implicit lambda capture.
Definition: ExprCXX.cpp:986
bool isInstantiationDependent() const
Whether this expression is instantiation-dependent, meaning that it depends in some way on a template...
Definition: Expr.h:191
FunctionDecl * getAsFunction() LLVM_READONLY
Returns the function itself, or the templated function if this is a function template.
Definition: DeclBase.cpp:218
static CXXDynamicCastExpr * CreateEmpty(const ASTContext &Context, unsigned pathSize)
Definition: ExprCXX.cpp:597
Encodes a location in the source.
capture_iterator explicit_capture_begin() const
Retrieve an iterator pointing to the first explicit lambda capture.
Definition: ExprCXX.cpp:972
Represents a C++ temporary.
Definition: ExprCXX.h:1164
CXXConstructExpr(const ASTContext &C, StmtClass SC, QualType T, SourceLocation Loc, CXXConstructorDecl *Ctor, bool Elidable, ArrayRef< Expr *> Args, bool HadMultipleCandidates, bool ListInitialization, bool StdInitListInitialization, bool ZeroInitialization, ConstructionKind ConstructKind, SourceRange ParenOrBraceRange)
Definition: ExprCXX.cpp:809
static CXXDependentScopeMemberExpr * CreateEmpty(const ASTContext &C, bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs)
Definition: ExprCXX.cpp:1170
static CXXConstCastExpr * CreateEmpty(const ASTContext &Context)
Definition: ExprCXX.cpp:669
static SizeOfPackExpr * Create(ASTContext &Context, SourceLocation OperatorLoc, NamedDecl *Pack, SourceLocation PackLoc, SourceLocation RParenLoc, Optional< unsigned > Length=None, ArrayRef< TemplateArgument > PartialArgs=None)
Definition: ExprCXX.cpp:1312
ASTContext & getASTContext() const LLVM_READONLY
Definition: DeclBase.cpp:376
OverloadExpr(StmtClass K, const ASTContext &C, NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc, const DeclarationNameInfo &NameInfo, const TemplateArgumentListInfo *TemplateArgs, UnresolvedSetIterator Begin, UnresolvedSetIterator End, bool KnownDependent, bool KnownInstantiationDependent, bool KnownContainsUnexpandedParameterPack)
Definition: ExprCXX.cpp:298
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:2031
static ExprWithCleanups * Create(const ASTContext &C, EmptyShell empty, unsigned numObjects)
Definition: ExprCXX.cpp:1057
SourceLocation getLocStart() const LLVM_READONLY
Definition: ExprCXX.cpp:1107
bool isArray() const
Definition: ExprCXX.h:1950
bool isValueDependent() const
isValueDependent - Determines whether this expression is value-dependent (C++ [temp.dep.constexpr]).
Definition: Expr.h:149
bool isAnyPointerType() const
Definition: Type.h:6053
bool isInfixBinaryOp() const
Is this written as an infix binary operator?
Definition: ExprCXX.cpp:46
bool isExplicit() const
Determine whether this was an explicit capture (written between the square brackets introducing the l...
bool isAnyCharacterType() const
Determine whether this type is any of the built-in character types.
Definition: Type.cpp:1786
__DEVICE__ void * memcpy(void *__a, const void *__b, size_t __c)
static SizeOfPackExpr * CreateDeserialized(ASTContext &Context, unsigned NumPartialArgs)
Definition: ExprCXX.cpp:1323
static CXXReinterpretCastExpr * Create(const ASTContext &Context, QualType T, ExprValueKind VK, CastKind Kind, Expr *Op, const CXXCastPath *Path, TypeSourceInfo *WrittenTy, SourceLocation L, SourceLocation RParenLoc, SourceRange AngleBrackets)
Definition: ExprCXX.cpp:637
FunctionDecl * getOperatorDelete() const
Definition: ExprCXX.h:1947
bool isInstantiationDependentType() const
Determine whether this type is an instantiation-dependent type, meaning that the type involves a temp...
Definition: Type.h:1936
A placeholder type used to construct an empty shell of a type, that will be filled in later (e...
Definition: Stmt.h:336
A qualified reference to a name whose declaration cannot yet be resolved.
Definition: ExprCXX.h:2857
InitializationStyle getInitializationStyle() const
The kind of initializer this new-expression has.
Definition: ExprCXX.h:1983
static bool hasOnlyNonStaticMemberFunctions(UnresolvedSetIterator begin, UnresolvedSetIterator end)
Definition: ExprCXX.cpp:1195
Defines various enumerations that describe declaration and type specifiers.
A POD class for pairing a NamedDecl* with an access specifier.
void * Allocate(size_t Size, unsigned Align=8) const
Definition: ASTContext.h:651
Represents a reference to a function parameter pack that has been substituted but not yet expanded...
Definition: ExprCXX.h:3961
Represents a template argument.
Definition: TemplateBase.h:51
CXXTemporaryObjectExpr(const ASTContext &C, CXXConstructorDecl *Cons, QualType Type, TypeSourceInfo *TSI, ArrayRef< Expr *> Args, SourceRange ParenOrBraceRange, bool HadMultipleCandidates, bool ListInitialization, bool StdInitListInitialization, bool ZeroInitialization)
Definition: ExprCXX.cpp:762
bool isMutable() const
Determine whether the lambda is mutable, meaning that any captures values can be modified.
Definition: ExprCXX.cpp:1024
Dataflow Directional Tag Classes.
void setExtendingDecl(const ValueDecl *ExtendedBy, unsigned ManglingNumber)
Definition: ExprCXX.cpp:1372
NestedNameSpecifier * getNestedNameSpecifier() const
Retrieve the nested-name-specifier to which this instance refers.
bool isValid() const
Return true if this is a valid SourceLocation object.
CXXMethodDecl * getLambdaCallOperator() const
Retrieve the lambda call operator of the closure type if this is a closure type.
Definition: DeclCXX.cpp:1330
DeducedType * getContainedDeducedType() const
Get the DeducedType whose type will be deduced for a variable with an initializer of this type...
Definition: Type.cpp:1686
OverloadedOperatorKind getOperator() const
Returns the kind of overloaded operator that this expression refers to.
Definition: ExprCXX.h:106
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:22
A C++ reinterpret_cast expression (C++ [expr.reinterpret.cast]).
Definition: ExprCXX.h:380
LambdaCaptureKind getCaptureKind() const
Determine the kind of capture.
Definition: ExprCXX.cpp:878
TypeSourceInfo * getTypeSourceInfo() const
Definition: ExprCXX.h:2165
bool capturesVLAType() const
Determine whether this captures a variable length array bound expression.
Definition: LambdaCapture.h:95
StmtClass getStmtClass() const
Definition: Stmt.h:389
static LambdaExpr * CreateDeserialized(const ASTContext &C, unsigned NumCaptures)
Construct a new lambda expression that will be deserialized from an external source.
Definition: ExprCXX.cpp:948
void setInstantiationDependent(bool ID)
Set whether this expression is instantiation-dependent or not.
Definition: Expr.h:196
bool isDestroyingOperatorDelete() const
Determine whether this is a destroying operator delete.
Definition: Decl.cpp:2815
bool isInitCapture() const
Whether this variable is the implicit variable for a lambda init-capture.
Definition: Decl.h:1390
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
TemplateParameterList * getTemplateParameterList() const
If this is a generic lambda expression, retrieve the template parameter list associated with it...
Definition: ExprCXX.cpp:1007
SourceLocation getLocEnd() const LLVM_READONLY
Definition: ExprCXX.cpp:698
Capturing variable-length array type.
Definition: Lambda.h:39
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of structs/unions/cl...
Definition: Type.h:4072
TemplateArgumentLoc * getTrailingTemplateArgumentLoc()
Return the optional template arguments.
Definition: ExprCXX.h:3590
bool isIntegerType() const
isIntegerType() does not include complex integers (a GCC extension).
Definition: Type.h:6304
static UnresolvedMemberExpr * CreateEmpty(const ASTContext &C, bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs)
Definition: ExprCXX.cpp:1267
CanQualType DependentTy
Definition: ASTContext.h:1026
TypeTraitExprBitfields TypeTraitExprBits
Definition: Stmt.h:310
Expr * getArg(unsigned Arg)
Return the specified argument.
Definition: ExprCXX.h:1365
CanQualType BoundMemberTy
Definition: ASTContext.h:1026
static CXXFunctionalCastExpr * CreateEmpty(const ASTContext &Context, unsigned PathSize)
Definition: ExprCXX.cpp:689
QualType getNonLValueExprType(const ASTContext &Context) const
Determine the type of a (typically non-lvalue) expression with the specified result type...
Definition: Type.cpp:2763
Capturing the *this object by reference.
Definition: Lambda.h:35
Represents a base class of a C++ class.
Definition: DeclCXX.h:192
Describes an explicit type conversion that uses functional notion but could not be resolved because o...
Definition: ExprCXX.h:3090
bool isLValueReferenceType() const
Definition: Type.h:6065
TypeLoc getTypeLoc() const
Return the TypeLoc wrapper for the type source info.
Definition: TypeLoc.h:239
static UnresolvedMemberExpr * Create(const ASTContext &C, bool HasUnresolvedUsing, Expr *Base, QualType BaseType, bool IsArrow, SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc, const DeclarationNameInfo &MemberNameInfo, const TemplateArgumentListInfo *TemplateArgs, UnresolvedSetIterator Begin, UnresolvedSetIterator End)
Definition: ExprCXX.cpp:1248
static UnresolvedLookupExpr * CreateEmpty(const ASTContext &C, bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs)
Definition: ExprCXX.cpp:285
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate.h) and friends (in DeclFriend.h).
Defines the clang::SourceLocation class and associated facilities.
void setEnd(SourceLocation e)
Represents a C++ struct/union/class.
Definition: DeclCXX.h:300
static CXXStaticCastExpr * CreateEmpty(const ASTContext &Context, unsigned PathSize)
Definition: ExprCXX.cpp:572
bool isValid() const
bool isVoidType() const
Definition: Type.h:6276
SourceLocation getLocStart() const LLVM_READONLY
Definition: ExprCXX.cpp:453
static CXXTemporary * Create(const ASTContext &C, const CXXDestructorDecl *Destructor)
Definition: ExprCXX.cpp:747
static CXXUnresolvedConstructExpr * CreateEmpty(const ASTContext &C, unsigned NumArgs)
Definition: ExprCXX.cpp:1101
Represents an explicit C++ type conversion that uses "functional" notation (C++ [expr.type.conv]).
Definition: ExprCXX.h:1471
static TypeTraitExpr * CreateDeserialized(const ASTContext &C, unsigned NumArgs)
Definition: ExprCXX.cpp:1429
Capturing by reference.
Definition: Lambda.h:38
SourceRange getParenOrBraceRange() const
Definition: ExprCXX.h:1382
void initializeFrom(SourceLocation TemplateKWLoc, const TemplateArgumentListInfo &List, TemplateArgumentLoc *OutArgArray)
bool containsUnexpandedParameterPack() const
Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates)...
Definition: Expr.h:214
CXXNewExpr(const ASTContext &C, bool globalNew, FunctionDecl *operatorNew, FunctionDecl *operatorDelete, bool PassAlignment, bool usualArrayDeleteWantsSize, ArrayRef< Expr *> placementArgs, SourceRange typeIdParens, Expr *arraySize, InitializationStyle initializationStyle, Expr *initializer, QualType ty, TypeSourceInfo *AllocatedTypeInfo, SourceRange Range, SourceRange directInitRange)
Definition: ExprCXX.cpp:97
capture_range captures() const
Retrieve this lambda&#39;s captures.
Definition: ExprCXX.cpp:968
CXXPseudoDestructorExpr(const ASTContext &Context, Expr *Base, bool isArrow, SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc, TypeSourceInfo *ScopeType, SourceLocation ColonColonLoc, SourceLocation TildeLoc, PseudoDestructorTypeStorage DestroyedType)
Definition: ExprCXX.cpp:211
capture_iterator capture_begin() const
Retrieve an iterator pointing to the first lambda capture.
Definition: ExprCXX.cpp:960
static FunctionParmPackExpr * Create(const ASTContext &Context, QualType T, ParmVarDecl *ParamPack, SourceLocation NameLoc, ArrayRef< ParmVarDecl *> Params)
Definition: ExprCXX.cpp:1358
bool isDependentType() const
Whether this type is a dependent type, meaning that its definition somehow depends on a template para...
Definition: Type.h:1930
bool isAlwaysNull() const
isAlwaysNull - Return whether the result of the dynamic_cast is proven to always be null...
Definition: ExprCXX.cpp:611
bool isPointerType() const
Definition: Type.h:6049
const char * getCastName() const
getCastName - Get the name of the C++ cast being used, e.g., "static_cast", "dynamic_cast", "reinterpret_cast", or "const_cast".
Definition: ExprCXX.cpp:543
bool isDefaultArgument() const
Determine whether this expression is a default function argument.
Definition: Expr.cpp:2655
QualType getType() const
Definition: Decl.h:647
#define true
Definition: stdbool.h:32
An l-value expression is a reference to an object with independent storage.
Definition: Specifiers.h:114
unsigned getNumArgs() const
Definition: ExprCXX.h:1362
bool isFloatingType() const
Definition: Type.cpp:1884
A trivial tuple used to represent a source range.
bool shouldNullCheckAllocation(const ASTContext &Ctx) const
True if the allocation result needs to be null-checked.
Definition: ExprCXX.cpp:171
This represents a decl that may have a name.
Definition: Decl.h:248
bool isPotentiallyEvaluated() const
Determine whether this typeid has a type operand which is potentially evaluated, per C++11 [expr...
Definition: ExprCXX.cpp:62
capture_range explicit_captures() const
Retrieve this lambda&#39;s explicit captures.
Definition: ExprCXX.cpp:982
SourceLocation getLocStart() const LLVM_READONLY
Definition: Stmt.cpp:278
SourceLocation getBegin() const
llvm::iterator_range< capture_iterator > capture_range
An iterator over a range of lambda captures.
Definition: ExprCXX.h:1671
QualType getUnqualifiedArrayType(QualType T, Qualifiers &Quals)
Return this type as a completely-unqualified array type, capturing the qualifiers in Quals...
QualType getType() const
Return the type wrapped by this type source info.
Definition: Decl.h:97
Defines the LambdaCapture class.
Expr * getCookedLiteral()
If this is not a raw user-defined literal, get the underlying cooked literal (representing the litera...
Definition: ExprCXX.cpp:724
Expr * IgnoreParens() LLVM_READONLY
IgnoreParens - Ignore parentheses.
Definition: Expr.cpp:2469
CanQualType getSizeType() const
Return the unique type for "size_t" (C99 7.17), defined in <stddef.h>.