contrib/llvm/tools/clang/lib/Serialization/ASTReaderStmt.cpp

   1 //===--- ASTReaderStmt.cpp - Stmt/Expr Deserialization ----------*- C++ -*-===//
   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 // Statement/expression deserialization.  This implements the
  11 // ASTReader::ReadStmt method.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "clang/Serialization/ASTReader.h"
  16 #include "clang/AST/ASTContext.h"
  17 #include "clang/AST/DeclCXX.h"
  18 #include "clang/AST/DeclTemplate.h"
  19 #include "clang/AST/StmtVisitor.h"
  20 #include "clang/Lex/Token.h"
  21 #include "llvm/ADT/SmallString.h"
  22 using namespace clang;
  23 using namespace clang::serialization;
  24
  25 namespace clang {
  26
  27   class ASTStmtReader : public StmtVisitor<ASTStmtReader> {
  28     friend class OMPClauseReader;
  29     typedef ASTReader::RecordData RecordData;
  30
  31     ASTReader &Reader;
  32     ModuleFile &F;
  33     llvm::BitstreamCursor &DeclsCursor;
  34     const ASTReader::RecordData &Record;
  35     unsigned &Idx;
  36
  37     Token ReadToken(const RecordData &R, unsigned &I) {
  38       return Reader.ReadToken(F, R, I);
  39     }
  40
  41     SourceLocation ReadSourceLocation(const RecordData &R, unsigned &I) {
  42       return Reader.ReadSourceLocation(F, R, I);
  43     }
  44
  45     SourceRange ReadSourceRange(const RecordData &R, unsigned &I) {
  46       return Reader.ReadSourceRange(F, R, I);
  47     }
  48
  49     std::string ReadString(const RecordData &R, unsigned &I) {
  50       return Reader.ReadString(R, I);
  51     }
  52
  53     TypeSourceInfo *GetTypeSourceInfo(const RecordData &R, unsigned &I) {
  54       return Reader.GetTypeSourceInfo(F, R, I);
  55     }
  56
  57     serialization::DeclID ReadDeclID(const RecordData &R, unsigned &I) {
  58       return Reader.ReadDeclID(F, R, I);
  59     }
  60
  61     Decl *ReadDecl(const RecordData &R, unsigned &I) {
  62       return Reader.ReadDecl(F, R, I);
  63     }
  64
  65     template<typename T>
  66     T *ReadDeclAs(const RecordData &R, unsigned &I) {
  67       return Reader.ReadDeclAs<T>(F, R, I);
  68     }
  69
  70     void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc, DeclarationName Name,
  71                                 const ASTReader::RecordData &R, unsigned &I) {
  72       Reader.ReadDeclarationNameLoc(F, DNLoc, Name, R, I);
  73     }
  74
  75     void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo,
  76                                 const ASTReader::RecordData &R, unsigned &I) {
  77       Reader.ReadDeclarationNameInfo(F, NameInfo, R, I);
  78     }
  79
  80   public:
  81     ASTStmtReader(ASTReader &Reader, ModuleFile &F,
  82                   llvm::BitstreamCursor &Cursor,
  83                   const ASTReader::RecordData &Record, unsigned &Idx)
  84       : Reader(Reader), F(F), DeclsCursor(Cursor), Record(Record), Idx(Idx) { }
  85
  86     /// \brief The number of record fields required for the Stmt class
  87     /// itself.
  88     static const unsigned NumStmtFields = 0;
  89
  90     /// \brief The number of record fields required for the Expr class
  91     /// itself.
  92     static const unsigned NumExprFields = NumStmtFields + 7;
  93
  94     /// \brief Read and initialize a ExplicitTemplateArgumentList structure.
  95     void ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
  96                                    unsigned NumTemplateArgs);
  97     /// \brief Read and initialize a ExplicitTemplateArgumentList structure.
  98     void ReadExplicitTemplateArgumentList(ASTTemplateArgumentListInfo &ArgList,
  99                                           unsigned NumTemplateArgs);
 100
 101     void VisitStmt(Stmt *S);
 102 #define STMT(Type, Base) \
 103     void Visit##Type(Type *);
 104 #include "clang/AST/StmtNodes.inc"
 105   };
 106 }
 107
 108 void ASTStmtReader::
 109 ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
 110                           unsigned NumTemplateArgs) {
 111   SourceLocation TemplateKWLoc = ReadSourceLocation(Record, Idx);
 112   TemplateArgumentListInfo ArgInfo;
 113   ArgInfo.setLAngleLoc(ReadSourceLocation(Record, Idx));
 114   ArgInfo.setRAngleLoc(ReadSourceLocation(Record, Idx));
 115   for (unsigned i = 0; i != NumTemplateArgs; ++i)
 116     ArgInfo.addArgument(
 117         Reader.ReadTemplateArgumentLoc(F, Record, Idx));
 118   Args.initializeFrom(TemplateKWLoc, ArgInfo);
 119 }
 120
 121 void ASTStmtReader::VisitStmt(Stmt *S) {
 122   assert(Idx == NumStmtFields && "Incorrect statement field count");
 123 }
 124
 125 void ASTStmtReader::VisitNullStmt(NullStmt *S) {
 126   VisitStmt(S);
 127   S->setSemiLoc(ReadSourceLocation(Record, Idx));
 128   S->HasLeadingEmptyMacro = Record[Idx++];
 129 }
 130
 131 void ASTStmtReader::VisitCompoundStmt(CompoundStmt *S) {
 132   VisitStmt(S);
 133   SmallVector<Stmt *, 16> Stmts;
 134   unsigned NumStmts = Record[Idx++];
 135   while (NumStmts--)
 136     Stmts.push_back(Reader.ReadSubStmt());
 137   S->setStmts(Reader.getContext(), Stmts.data(), Stmts.size());
 138   S->LBraceLoc = ReadSourceLocation(Record, Idx);
 139   S->RBraceLoc = ReadSourceLocation(Record, Idx);
 140 }
 141
 142 void ASTStmtReader::VisitSwitchCase(SwitchCase *S) {
 143   VisitStmt(S);
 144   Reader.RecordSwitchCaseID(S, Record[Idx++]);
 145   S->setKeywordLoc(ReadSourceLocation(Record, Idx));
 146   S->setColonLoc(ReadSourceLocation(Record, Idx));
 147 }
 148
 149 void ASTStmtReader::VisitCaseStmt(CaseStmt *S) {
 150   VisitSwitchCase(S);
 151   S->setLHS(Reader.ReadSubExpr());
 152   S->setRHS(Reader.ReadSubExpr());
 153   S->setSubStmt(Reader.ReadSubStmt());
 154   S->setEllipsisLoc(ReadSourceLocation(Record, Idx));
 155 }
 156
 157 void ASTStmtReader::VisitDefaultStmt(DefaultStmt *S) {
 158   VisitSwitchCase(S);
 159   S->setSubStmt(Reader.ReadSubStmt());
 160 }
 161
 162 void ASTStmtReader::VisitLabelStmt(LabelStmt *S) {
 163   VisitStmt(S);
 164   LabelDecl *LD = ReadDeclAs<LabelDecl>(Record, Idx);
 165   LD->setStmt(S);
 166   S->setDecl(LD);
 167   S->setSubStmt(Reader.ReadSubStmt());
 168   S->setIdentLoc(ReadSourceLocation(Record, Idx));
 169 }
 170
 171 void ASTStmtReader::VisitAttributedStmt(AttributedStmt *S) {
 172   VisitStmt(S);
 173   uint64_t NumAttrs = Record[Idx++];
 174   AttrVec Attrs;
 175   Reader.ReadAttributes(F, Attrs, Record, Idx);
 176   (void)NumAttrs;
 177   assert(NumAttrs == S->NumAttrs);
 178   assert(NumAttrs == Attrs.size());
 179   std::copy(Attrs.begin(), Attrs.end(), S->getAttrArrayPtr());
 180   S->SubStmt = Reader.ReadSubStmt();
 181   S->AttrLoc = ReadSourceLocation(Record, Idx);
 182 }
 183
 184 void ASTStmtReader::VisitIfStmt(IfStmt *S) {
 185   VisitStmt(S);
 186   S->setConditionVariable(Reader.getContext(),
 187                           ReadDeclAs<VarDecl>(Record, Idx));
 188   S->setCond(Reader.ReadSubExpr());
 189   S->setThen(Reader.ReadSubStmt());
 190   S->setElse(Reader.ReadSubStmt());
 191   S->setIfLoc(ReadSourceLocation(Record, Idx));
 192   S->setElseLoc(ReadSourceLocation(Record, Idx));
 193 }
 194
 195 void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
 196   VisitStmt(S);
 197   S->setConditionVariable(Reader.getContext(),
 198                           ReadDeclAs<VarDecl>(Record, Idx));
 199   S->setCond(Reader.ReadSubExpr());
 200   S->setBody(Reader.ReadSubStmt());
 201   S->setSwitchLoc(ReadSourceLocation(Record, Idx));
 202   if (Record[Idx++])
 203     S->setAllEnumCasesCovered();
 204
 205   SwitchCase *PrevSC = nullptr;
 206   for (unsigned N = Record.size(); Idx != N; ++Idx) {
 207     SwitchCase *SC = Reader.getSwitchCaseWithID(Record[Idx]);
 208     if (PrevSC)
 209       PrevSC->setNextSwitchCase(SC);
 210     else
 211       S->setSwitchCaseList(SC);
 212
 213     PrevSC = SC;
 214   }
 215 }
 216
 217 void ASTStmtReader::VisitWhileStmt(WhileStmt *S) {
 218   VisitStmt(S);
 219   S->setConditionVariable(Reader.getContext(),
 220                           ReadDeclAs<VarDecl>(Record, Idx));
 221
 222   S->setCond(Reader.ReadSubExpr());
 223   S->setBody(Reader.ReadSubStmt());
 224   S->setWhileLoc(ReadSourceLocation(Record, Idx));
 225 }
 226
 227 void ASTStmtReader::VisitDoStmt(DoStmt *S) {
 228   VisitStmt(S);
 229   S->setCond(Reader.ReadSubExpr());
 230   S->setBody(Reader.ReadSubStmt());
 231   S->setDoLoc(ReadSourceLocation(Record, Idx));
 232   S->setWhileLoc(ReadSourceLocation(Record, Idx));
 233   S->setRParenLoc(ReadSourceLocation(Record, Idx));
 234 }
 235
 236 void ASTStmtReader::VisitForStmt(ForStmt *S) {
 237   VisitStmt(S);
 238   S->setInit(Reader.ReadSubStmt());
 239   S->setCond(Reader.ReadSubExpr());
 240   S->setConditionVariable(Reader.getContext(),
 241                           ReadDeclAs<VarDecl>(Record, Idx));
 242   S->setInc(Reader.ReadSubExpr());
 243   S->setBody(Reader.ReadSubStmt());
 244   S->setForLoc(ReadSourceLocation(Record, Idx));
 245   S->setLParenLoc(ReadSourceLocation(Record, Idx));
 246   S->setRParenLoc(ReadSourceLocation(Record, Idx));
 247 }
 248
 249 void ASTStmtReader::VisitGotoStmt(GotoStmt *S) {
 250   VisitStmt(S);
 251   S->setLabel(ReadDeclAs<LabelDecl>(Record, Idx));
 252   S->setGotoLoc(ReadSourceLocation(Record, Idx));
 253   S->setLabelLoc(ReadSourceLocation(Record, Idx));
 254 }
 255
 256 void ASTStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
 257   VisitStmt(S);
 258   S->setGotoLoc(ReadSourceLocation(Record, Idx));
 259   S->setStarLoc(ReadSourceLocation(Record, Idx));
 260   S->setTarget(Reader.ReadSubExpr());
 261 }
 262
 263 void ASTStmtReader::VisitContinueStmt(ContinueStmt *S) {
 264   VisitStmt(S);
 265   S->setContinueLoc(ReadSourceLocation(Record, Idx));
 266 }
 267
 268 void ASTStmtReader::VisitBreakStmt(BreakStmt *S) {
 269   VisitStmt(S);
 270   S->setBreakLoc(ReadSourceLocation(Record, Idx));
 271 }
 272
 273 void ASTStmtReader::VisitReturnStmt(ReturnStmt *S) {
 274   VisitStmt(S);
 275   S->setRetValue(Reader.ReadSubExpr());
 276   S->setReturnLoc(ReadSourceLocation(Record, Idx));
 277   S->setNRVOCandidate(ReadDeclAs<VarDecl>(Record, Idx));
 278 }
 279
 280 void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
 281   VisitStmt(S);
 282   S->setStartLoc(ReadSourceLocation(Record, Idx));
 283   S->setEndLoc(ReadSourceLocation(Record, Idx));
 284
 285   if (Idx + 1 == Record.size()) {
 286     // Single declaration
 287     S->setDeclGroup(DeclGroupRef(ReadDecl(Record, Idx)));
 288   } else {
 289     SmallVector<Decl *, 16> Decls;
 290     Decls.reserve(Record.size() - Idx);
 291     for (unsigned N = Record.size(); Idx != N; )
 292       Decls.push_back(ReadDecl(Record, Idx));
 293     S->setDeclGroup(DeclGroupRef(DeclGroup::Create(Reader.getContext(),
 294                                                    Decls.data(),
 295                                                    Decls.size())));
 296   }
 297 }
 298
 299 void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
 300   VisitStmt(S);
 301   S->NumOutputs = Record[Idx++];
 302   S->NumInputs = Record[Idx++];
 303   S->NumClobbers = Record[Idx++];
 304   S->setAsmLoc(ReadSourceLocation(Record, Idx));
 305   S->setVolatile(Record[Idx++]);
 306   S->setSimple(Record[Idx++]);
 307 }
 308
 309 void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
 310   VisitAsmStmt(S);
 311   S->setRParenLoc(ReadSourceLocation(Record, Idx));
 312   S->setAsmString(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
 313
 314   unsigned NumOutputs = S->getNumOutputs();
 315   unsigned NumInputs = S->getNumInputs();
 316   unsigned NumClobbers = S->getNumClobbers();
 317
 318   // Outputs and inputs
 319   SmallVector<IdentifierInfo *, 16> Names;
 320   SmallVector<StringLiteral*, 16> Constraints;
 321   SmallVector<Stmt*, 16> Exprs;
 322   for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
 323     Names.push_back(Reader.GetIdentifierInfo(F, Record, Idx));
 324     Constraints.push_back(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
 325     Exprs.push_back(Reader.ReadSubStmt());
 326   }
 327
 328   // Constraints
 329   SmallVector<StringLiteral*, 16> Clobbers;
 330   for (unsigned I = 0; I != NumClobbers; ++I)
 331     Clobbers.push_back(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
 332
 333   S->setOutputsAndInputsAndClobbers(Reader.getContext(),
 334                                     Names.data(), Constraints.data(),
 335                                     Exprs.data(), NumOutputs, NumInputs,
 336                                     Clobbers.data(), NumClobbers);
 337 }
 338
 339 void ASTStmtReader::VisitMSAsmStmt(MSAsmStmt *S) {
 340   VisitAsmStmt(S);
 341   S->LBraceLoc = ReadSourceLocation(Record, Idx);
 342   S->EndLoc = ReadSourceLocation(Record, Idx);
 343   S->NumAsmToks = Record[Idx++];
 344   std::string AsmStr = ReadString(Record, Idx);
 345
 346   // Read the tokens.
 347   SmallVector<Token, 16> AsmToks;
 348   AsmToks.reserve(S->NumAsmToks);
 349   for (unsigned i = 0, e = S->NumAsmToks; i != e; ++i) {
 350     AsmToks.push_back(ReadToken(Record, Idx));
 351   }
 352
 353   // The calls to reserve() for the FooData vectors are mandatory to
 354   // prevent dead StringRefs in the Foo vectors.
 355
 356   // Read the clobbers.
 357   SmallVector<std::string, 16> ClobbersData;
 358   SmallVector<StringRef, 16> Clobbers;
 359   ClobbersData.reserve(S->NumClobbers);
 360   Clobbers.reserve(S->NumClobbers);
 361   for (unsigned i = 0, e = S->NumClobbers; i != e; ++i) {
 362     ClobbersData.push_back(ReadString(Record, Idx));
 363     Clobbers.push_back(ClobbersData.back());
 364   }
 365
 366   // Read the operands.
 367   unsigned NumOperands = S->NumOutputs + S->NumInputs;
 368   SmallVector<Expr*, 16> Exprs;
 369   SmallVector<std::string, 16> ConstraintsData;
 370   SmallVector<StringRef, 16> Constraints;
 371   Exprs.reserve(NumOperands);
 372   ConstraintsData.reserve(NumOperands);
 373   Constraints.reserve(NumOperands);
 374   for (unsigned i = 0; i != NumOperands; ++i) {
 375     Exprs.push_back(cast<Expr>(Reader.ReadSubStmt()));
 376     ConstraintsData.push_back(ReadString(Record, Idx));
 377     Constraints.push_back(ConstraintsData.back());
 378   }
 379
 380   S->initialize(Reader.getContext(), AsmStr, AsmToks,
 381                 Constraints, Exprs, Clobbers);
 382 }
 383
 384 void ASTStmtReader::VisitCapturedStmt(CapturedStmt *S) {
 385   VisitStmt(S);
 386   ++Idx;
 387   S->setCapturedDecl(ReadDeclAs<CapturedDecl>(Record, Idx));
 388   S->setCapturedRegionKind(static_cast<CapturedRegionKind>(Record[Idx++]));
 389   S->setCapturedRecordDecl(ReadDeclAs<RecordDecl>(Record, Idx));
 390
 391   // Capture inits
 392   for (CapturedStmt::capture_init_iterator I = S->capture_init_begin(),
 393                                            E = S->capture_init_end();
 394        I != E; ++I)
 395     *I = Reader.ReadSubExpr();
 396
 397   // Body
 398   S->setCapturedStmt(Reader.ReadSubStmt());
 399   S->getCapturedDecl()->setBody(S->getCapturedStmt());
 400
 401   // Captures
 402   for (auto &I : S->captures()) {
 403     I.VarAndKind.setPointer(ReadDeclAs<VarDecl>(Record, Idx));
 404     I.VarAndKind
 405         .setInt(static_cast<CapturedStmt::VariableCaptureKind>(Record[Idx++]));
 406     I.Loc = ReadSourceLocation(Record, Idx);
 407   }
 408 }
 409
 410 void ASTStmtReader::VisitExpr(Expr *E) {
 411   VisitStmt(E);
 412   E->setType(Reader.readType(F, Record, Idx));
 413   E->setTypeDependent(Record[Idx++]);
 414   E->setValueDependent(Record[Idx++]);
 415   E->setInstantiationDependent(Record[Idx++]);
 416   E->ExprBits.ContainsUnexpandedParameterPack = Record[Idx++];
 417   E->setValueKind(static_cast<ExprValueKind>(Record[Idx++]));
 418   E->setObjectKind(static_cast<ExprObjectKind>(Record[Idx++]));
 419   assert(Idx == NumExprFields && "Incorrect expression field count");
 420 }
 421
 422 void ASTStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
 423   VisitExpr(E);
 424   E->setLocation(ReadSourceLocation(Record, Idx));
 425   E->Type = (PredefinedExpr::IdentType)Record[Idx++];
 426   E->FnName = cast_or_null<StringLiteral>(Reader.ReadSubExpr());
 427 }
 428
 429 void ASTStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
 430   VisitExpr(E);
 431
 432   E->DeclRefExprBits.HasQualifier = Record[Idx++];
 433   E->DeclRefExprBits.HasFoundDecl = Record[Idx++];
 434   E->DeclRefExprBits.HasTemplateKWAndArgsInfo = Record[Idx++];
 435   E->DeclRefExprBits.HadMultipleCandidates = Record[Idx++];
 436   E->DeclRefExprBits.RefersToEnclosingVariableOrCapture = Record[Idx++];
 437   unsigned NumTemplateArgs = 0;
 438   if (E->hasTemplateKWAndArgsInfo())
 439     NumTemplateArgs = Record[Idx++];
 440
 441   if (E->hasQualifier())
 442     E->getInternalQualifierLoc()
 443       = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
 444
 445   if (E->hasFoundDecl())
 446     E->getInternalFoundDecl() = ReadDeclAs<NamedDecl>(Record, Idx);
 447
 448   if (E->hasTemplateKWAndArgsInfo())
 449     ReadTemplateKWAndArgsInfo(*E->getTemplateKWAndArgsInfo(),
 450                               NumTemplateArgs);
 451
 452   E->setDecl(ReadDeclAs<ValueDecl>(Record, Idx));
 453   E->setLocation(ReadSourceLocation(Record, Idx));
 454   ReadDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName(), Record, Idx);
 455 }
 456
 457 void ASTStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
 458   VisitExpr(E);
 459   E->setLocation(ReadSourceLocation(Record, Idx));
 460   E->setValue(Reader.getContext(), Reader.ReadAPInt(Record, Idx));
 461 }
 462
 463 void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
 464   VisitExpr(E);
 465   E->setRawSemantics(static_cast<Stmt::APFloatSemantics>(Record[Idx++]));
 466   E->setExact(Record[Idx++]);
 467   E->setValue(Reader.getContext(),
 468               Reader.ReadAPFloat(Record, E->getSemantics(), Idx));
 469   E->setLocation(ReadSourceLocation(Record, Idx));
 470 }
 471
 472 void ASTStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
 473   VisitExpr(E);
 474   E->setSubExpr(Reader.ReadSubExpr());
 475 }
 476
 477 void ASTStmtReader::VisitStringLiteral(StringLiteral *E) {
 478   VisitExpr(E);
 479   unsigned Len = Record[Idx++];
 480   assert(Record[Idx] == E->getNumConcatenated() &&
 481          "Wrong number of concatenated tokens!");
 482   ++Idx;
 483   StringLiteral::StringKind kind =
 484         static_cast<StringLiteral::StringKind>(Record[Idx++]);
 485   bool isPascal = Record[Idx++];
 486
 487   // Read string data
 488   SmallString<16> Str(&Record[Idx], &Record[Idx] + Len);
 489   E->setString(Reader.getContext(), Str, kind, isPascal);
 490   Idx += Len;
 491
 492   // Read source locations
 493   for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
 494     E->setStrTokenLoc(I, ReadSourceLocation(Record, Idx));
 495 }
 496
 497 void ASTStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
 498   VisitExpr(E);
 499   E->setValue(Record[Idx++]);
 500   E->setLocation(ReadSourceLocation(Record, Idx));
 501   E->setKind(static_cast<CharacterLiteral::CharacterKind>(Record[Idx++]));
 502 }
 503
 504 void ASTStmtReader::VisitParenExpr(ParenExpr *E) {
 505   VisitExpr(E);
 506   E->setLParen(ReadSourceLocation(Record, Idx));
 507   E->setRParen(ReadSourceLocation(Record, Idx));
 508   E->setSubExpr(Reader.ReadSubExpr());
 509 }
 510
 511 void ASTStmtReader::VisitParenListExpr(ParenListExpr *E) {
 512   VisitExpr(E);
 513   unsigned NumExprs = Record[Idx++];
 514   E->Exprs = new (Reader.getContext()) Stmt*[NumExprs];
 515   for (unsigned i = 0; i != NumExprs; ++i)
 516     E->Exprs[i] = Reader.ReadSubStmt();
 517   E->NumExprs = NumExprs;
 518   E->LParenLoc = ReadSourceLocation(Record, Idx);
 519   E->RParenLoc = ReadSourceLocation(Record, Idx);
 520 }
 521
 522 void ASTStmtReader::VisitUnaryOperator(UnaryOperator *E) {
 523   VisitExpr(E);
 524   E->setSubExpr(Reader.ReadSubExpr());
 525   E->setOpcode((UnaryOperator::Opcode)Record[Idx++]);
 526   E->setOperatorLoc(ReadSourceLocation(Record, Idx));
 527 }
 528
 529 void ASTStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
 530   typedef OffsetOfExpr::OffsetOfNode Node;
 531   VisitExpr(E);
 532   assert(E->getNumComponents() == Record[Idx]);
 533   ++Idx;
 534   assert(E->getNumExpressions() == Record[Idx]);
 535   ++Idx;
 536   E->setOperatorLoc(ReadSourceLocation(Record, Idx));
 537   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 538   E->setTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
 539   for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
 540     Node::Kind Kind = static_cast<Node::Kind>(Record[Idx++]);
 541     SourceLocation Start = ReadSourceLocation(Record, Idx);
 542     SourceLocation End = ReadSourceLocation(Record, Idx);
 543     switch (Kind) {
 544     case Node::Array:
 545       E->setComponent(I, Node(Start, Record[Idx++], End));
 546       break;
 547
 548     case Node::Field:
 549       E->setComponent(I, Node(Start, ReadDeclAs<FieldDecl>(Record, Idx), End));
 550       break;
 551
 552     case Node::Identifier:
 553       E->setComponent(I,
 554                       Node(Start,
 555                            Reader.GetIdentifierInfo(F, Record, Idx),
 556                            End));
 557       break;
 558
 559     case Node::Base: {
 560       CXXBaseSpecifier *Base = new (Reader.getContext()) CXXBaseSpecifier();
 561       *Base = Reader.ReadCXXBaseSpecifier(F, Record, Idx);
 562       E->setComponent(I, Node(Base));
 563       break;
 564     }
 565     }
 566   }
 567
 568   for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
 569     E->setIndexExpr(I, Reader.ReadSubExpr());
 570 }
 571
 572 void ASTStmtReader::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E) {
 573   VisitExpr(E);
 574   E->setKind(static_cast<UnaryExprOrTypeTrait>(Record[Idx++]));
 575   if (Record[Idx] == 0) {
 576     E->setArgument(Reader.ReadSubExpr());
 577     ++Idx;
 578   } else {
 579     E->setArgument(GetTypeSourceInfo(Record, Idx));
 580   }
 581   E->setOperatorLoc(ReadSourceLocation(Record, Idx));
 582   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 583 }
 584
 585 void ASTStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
 586   VisitExpr(E);
 587   E->setLHS(Reader.ReadSubExpr());
 588   E->setRHS(Reader.ReadSubExpr());
 589   E->setRBracketLoc(ReadSourceLocation(Record, Idx));
 590 }
 591
 592 void ASTStmtReader::VisitCallExpr(CallExpr *E) {
 593   VisitExpr(E);
 594   E->setNumArgs(Reader.getContext(), Record[Idx++]);
 595   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 596   E->setCallee(Reader.ReadSubExpr());
 597   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
 598     E->setArg(I, Reader.ReadSubExpr());
 599 }
 600
 601 void ASTStmtReader::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
 602   VisitCallExpr(E);
 603 }
 604
 605 void ASTStmtReader::VisitMemberExpr(MemberExpr *E) {
 606   // Don't call VisitExpr, this is fully initialized at creation.
 607   assert(E->getStmtClass() == Stmt::MemberExprClass &&
 608          "It's a subclass, we must advance Idx!");
 609 }
 610
 611 void ASTStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
 612   VisitExpr(E);
 613   E->setBase(Reader.ReadSubExpr());
 614   E->setIsaMemberLoc(ReadSourceLocation(Record, Idx));
 615   E->setOpLoc(ReadSourceLocation(Record, Idx));
 616   E->setArrow(Record[Idx++]);
 617 }
 618
 619 void ASTStmtReader::
 620 VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
 621   VisitExpr(E);
 622   E->Operand = Reader.ReadSubExpr();
 623   E->setShouldCopy(Record[Idx++]);
 624 }
 625
 626 void ASTStmtReader::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
 627   VisitExplicitCastExpr(E);
 628   E->LParenLoc = ReadSourceLocation(Record, Idx);
 629   E->BridgeKeywordLoc = ReadSourceLocation(Record, Idx);
 630   E->Kind = Record[Idx++];
 631 }
 632
 633 void ASTStmtReader::VisitCastExpr(CastExpr *E) {
 634   VisitExpr(E);
 635   unsigned NumBaseSpecs = Record[Idx++];
 636   assert(NumBaseSpecs == E->path_size());
 637   E->setSubExpr(Reader.ReadSubExpr());
 638   E->setCastKind((CastKind)Record[Idx++]);
 639   CastExpr::path_iterator BaseI = E->path_begin();
 640   while (NumBaseSpecs--) {
 641     CXXBaseSpecifier *BaseSpec = new (Reader.getContext()) CXXBaseSpecifier;
 642     *BaseSpec = Reader.ReadCXXBaseSpecifier(F, Record, Idx);
 643     *BaseI++ = BaseSpec;
 644   }
 645 }
 646
 647 void ASTStmtReader::VisitBinaryOperator(BinaryOperator *E) {
 648   VisitExpr(E);
 649   E->setLHS(Reader.ReadSubExpr());
 650   E->setRHS(Reader.ReadSubExpr());
 651   E->setOpcode((BinaryOperator::Opcode)Record[Idx++]);
 652   E->setOperatorLoc(ReadSourceLocation(Record, Idx));
 653   E->setFPContractable((bool)Record[Idx++]);
 654 }
 655
 656 void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
 657   VisitBinaryOperator(E);
 658   E->setComputationLHSType(Reader.readType(F, Record, Idx));
 659   E->setComputationResultType(Reader.readType(F, Record, Idx));
 660 }
 661
 662 void ASTStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
 663   VisitExpr(E);
 664   E->SubExprs[ConditionalOperator::COND] = Reader.ReadSubExpr();
 665   E->SubExprs[ConditionalOperator::LHS] = Reader.ReadSubExpr();
 666   E->SubExprs[ConditionalOperator::RHS] = Reader.ReadSubExpr();
 667   E->QuestionLoc = ReadSourceLocation(Record, Idx);
 668   E->ColonLoc = ReadSourceLocation(Record, Idx);
 669 }
 670
 671 void
 672 ASTStmtReader::VisitBinaryConditionalOperator(BinaryConditionalOperator *E) {
 673   VisitExpr(E);
 674   E->OpaqueValue = cast<OpaqueValueExpr>(Reader.ReadSubExpr());
 675   E->SubExprs[BinaryConditionalOperator::COMMON] = Reader.ReadSubExpr();
 676   E->SubExprs[BinaryConditionalOperator::COND] = Reader.ReadSubExpr();
 677   E->SubExprs[BinaryConditionalOperator::LHS] = Reader.ReadSubExpr();
 678   E->SubExprs[BinaryConditionalOperator::RHS] = Reader.ReadSubExpr();
 679   E->QuestionLoc = ReadSourceLocation(Record, Idx);
 680   E->ColonLoc = ReadSourceLocation(Record, Idx);
 681 }
 682
 683 void ASTStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
 684   VisitCastExpr(E);
 685 }
 686
 687 void ASTStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
 688   VisitCastExpr(E);
 689   E->setTypeInfoAsWritten(GetTypeSourceInfo(Record, Idx));
 690 }
 691
 692 void ASTStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
 693   VisitExplicitCastExpr(E);
 694   E->setLParenLoc(ReadSourceLocation(Record, Idx));
 695   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 696 }
 697
 698 void ASTStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
 699   VisitExpr(E);
 700   E->setLParenLoc(ReadSourceLocation(Record, Idx));
 701   E->setTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
 702   E->setInitializer(Reader.ReadSubExpr());
 703   E->setFileScope(Record[Idx++]);
 704 }
 705
 706 void ASTStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
 707   VisitExpr(E);
 708   E->setBase(Reader.ReadSubExpr());
 709   E->setAccessor(Reader.GetIdentifierInfo(F, Record, Idx));
 710   E->setAccessorLoc(ReadSourceLocation(Record, Idx));
 711 }
 712
 713 void ASTStmtReader::VisitInitListExpr(InitListExpr *E) {
 714   VisitExpr(E);
 715   if (InitListExpr *SyntForm = cast_or_null<InitListExpr>(Reader.ReadSubStmt()))
 716     E->setSyntacticForm(SyntForm);
 717   E->setLBraceLoc(ReadSourceLocation(Record, Idx));
 718   E->setRBraceLoc(ReadSourceLocation(Record, Idx));
 719   bool isArrayFiller = Record[Idx++];
 720   Expr *filler = nullptr;
 721   if (isArrayFiller) {
 722     filler = Reader.ReadSubExpr();
 723     E->ArrayFillerOrUnionFieldInit = filler;
 724   } else
 725     E->ArrayFillerOrUnionFieldInit = ReadDeclAs<FieldDecl>(Record, Idx);
 726   E->sawArrayRangeDesignator(Record[Idx++]);
 727   unsigned NumInits = Record[Idx++];
 728   E->reserveInits(Reader.getContext(), NumInits);
 729   if (isArrayFiller) {
 730     for (unsigned I = 0; I != NumInits; ++I) {
 731       Expr *init = Reader.ReadSubExpr();
 732       E->updateInit(Reader.getContext(), I, init ? init : filler);
 733     }
 734   } else {
 735     for (unsigned I = 0; I != NumInits; ++I)
 736       E->updateInit(Reader.getContext(), I, Reader.ReadSubExpr());
 737   }
 738 }
 739
 740 void ASTStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
 741   typedef DesignatedInitExpr::Designator Designator;
 742
 743   VisitExpr(E);
 744   unsigned NumSubExprs = Record[Idx++];
 745   assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
 746   for (unsigned I = 0; I != NumSubExprs; ++I)
 747     E->setSubExpr(I, Reader.ReadSubExpr());
 748   E->setEqualOrColonLoc(ReadSourceLocation(Record, Idx));
 749   E->setGNUSyntax(Record[Idx++]);
 750
 751   SmallVector<Designator, 4> Designators;
 752   while (Idx < Record.size()) {
 753     switch ((DesignatorTypes)Record[Idx++]) {
 754     case DESIG_FIELD_DECL: {
 755       FieldDecl *Field = ReadDeclAs<FieldDecl>(Record, Idx);
 756       SourceLocation DotLoc
 757         = ReadSourceLocation(Record, Idx);
 758       SourceLocation FieldLoc
 759         = ReadSourceLocation(Record, Idx);
 760       Designators.push_back(Designator(Field->getIdentifier(), DotLoc,
 761                                        FieldLoc));
 762       Designators.back().setField(Field);
 763       break;
 764     }
 765
 766     case DESIG_FIELD_NAME: {
 767       const IdentifierInfo *Name = Reader.GetIdentifierInfo(F, Record, Idx);
 768       SourceLocation DotLoc
 769         = ReadSourceLocation(Record, Idx);
 770       SourceLocation FieldLoc
 771         = ReadSourceLocation(Record, Idx);
 772       Designators.push_back(Designator(Name, DotLoc, FieldLoc));
 773       break;
 774     }
 775
 776     case DESIG_ARRAY: {
 777       unsigned Index = Record[Idx++];
 778       SourceLocation LBracketLoc
 779         = ReadSourceLocation(Record, Idx);
 780       SourceLocation RBracketLoc
 781         = ReadSourceLocation(Record, Idx);
 782       Designators.push_back(Designator(Index, LBracketLoc, RBracketLoc));
 783       break;
 784     }
 785
 786     case DESIG_ARRAY_RANGE: {
 787       unsigned Index = Record[Idx++];
 788       SourceLocation LBracketLoc
 789         = ReadSourceLocation(Record, Idx);
 790       SourceLocation EllipsisLoc
 791         = ReadSourceLocation(Record, Idx);
 792       SourceLocation RBracketLoc
 793         = ReadSourceLocation(Record, Idx);
 794       Designators.push_back(Designator(Index, LBracketLoc, EllipsisLoc,
 795                                        RBracketLoc));
 796       break;
 797     }
 798     }
 799   }
 800   E->setDesignators(Reader.getContext(),
 801                     Designators.data(), Designators.size());
 802 }
 803
 804 void ASTStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
 805   VisitExpr(E);
 806 }
 807
 808 void ASTStmtReader::VisitVAArgExpr(VAArgExpr *E) {
 809   VisitExpr(E);
 810   E->setSubExpr(Reader.ReadSubExpr());
 811   E->setWrittenTypeInfo(GetTypeSourceInfo(Record, Idx));
 812   E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
 813   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 814 }
 815
 816 void ASTStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
 817   VisitExpr(E);
 818   E->setAmpAmpLoc(ReadSourceLocation(Record, Idx));
 819   E->setLabelLoc(ReadSourceLocation(Record, Idx));
 820   E->setLabel(ReadDeclAs<LabelDecl>(Record, Idx));
 821 }
 822
 823 void ASTStmtReader::VisitStmtExpr(StmtExpr *E) {
 824   VisitExpr(E);
 825   E->setLParenLoc(ReadSourceLocation(Record, Idx));
 826   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 827   E->setSubStmt(cast_or_null<CompoundStmt>(Reader.ReadSubStmt()));
 828 }
 829
 830 void ASTStmtReader::VisitChooseExpr(ChooseExpr *E) {
 831   VisitExpr(E);
 832   E->setCond(Reader.ReadSubExpr());
 833   E->setLHS(Reader.ReadSubExpr());
 834   E->setRHS(Reader.ReadSubExpr());
 835   E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
 836   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 837   E->setIsConditionTrue(Record[Idx++]);
 838 }
 839
 840 void ASTStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
 841   VisitExpr(E);
 842   E->setTokenLocation(ReadSourceLocation(Record, Idx));
 843 }
 844
 845 void ASTStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
 846   VisitExpr(E);
 847   SmallVector<Expr *, 16> Exprs;
 848   unsigned NumExprs = Record[Idx++];
 849   while (NumExprs--)
 850     Exprs.push_back(Reader.ReadSubExpr());
 851   E->setExprs(Reader.getContext(), Exprs);
 852   E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
 853   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 854 }
 855
 856 void ASTStmtReader::VisitConvertVectorExpr(ConvertVectorExpr *E) {
 857   VisitExpr(E);
 858   E->BuiltinLoc = ReadSourceLocation(Record, Idx);
 859   E->RParenLoc = ReadSourceLocation(Record, Idx);
 860   E->TInfo = GetTypeSourceInfo(Record, Idx);
 861   E->SrcExpr = Reader.ReadSubExpr();
 862 }
 863
 864 void ASTStmtReader::VisitBlockExpr(BlockExpr *E) {
 865   VisitExpr(E);
 866   E->setBlockDecl(ReadDeclAs<BlockDecl>(Record, Idx));
 867 }
 868
 869 void ASTStmtReader::VisitGenericSelectionExpr(GenericSelectionExpr *E) {
 870   VisitExpr(E);
 871   E->NumAssocs = Record[Idx++];
 872   E->AssocTypes = new (Reader.getContext()) TypeSourceInfo*[E->NumAssocs];
 873   E->SubExprs =
 874    new(Reader.getContext()) Stmt*[GenericSelectionExpr::END_EXPR+E->NumAssocs];
 875
 876   E->SubExprs[GenericSelectionExpr::CONTROLLING] = Reader.ReadSubExpr();
 877   for (unsigned I = 0, N = E->getNumAssocs(); I != N; ++I) {
 878     E->AssocTypes[I] = GetTypeSourceInfo(Record, Idx);
 879     E->SubExprs[GenericSelectionExpr::END_EXPR+I] = Reader.ReadSubExpr();
 880   }
 881   E->ResultIndex = Record[Idx++];
 882
 883   E->GenericLoc = ReadSourceLocation(Record, Idx);
 884   E->DefaultLoc = ReadSourceLocation(Record, Idx);
 885   E->RParenLoc = ReadSourceLocation(Record, Idx);
 886 }
 887
 888 void ASTStmtReader::VisitPseudoObjectExpr(PseudoObjectExpr *E) {
 889   VisitExpr(E);
 890   unsigned numSemanticExprs = Record[Idx++];
 891   assert(numSemanticExprs + 1 == E->PseudoObjectExprBits.NumSubExprs);
 892   E->PseudoObjectExprBits.ResultIndex = Record[Idx++];
 893
 894   // Read the syntactic expression.
 895   E->getSubExprsBuffer()[0] = Reader.ReadSubExpr();
 896
 897   // Read all the semantic expressions.
 898   for (unsigned i = 0; i != numSemanticExprs; ++i) {
 899     Expr *subExpr = Reader.ReadSubExpr();
 900     E->getSubExprsBuffer()[i+1] = subExpr;
 901   }
 902 }
 903
 904 void ASTStmtReader::VisitAtomicExpr(AtomicExpr *E) {
 905   VisitExpr(E);
 906   E->Op = AtomicExpr::AtomicOp(Record[Idx++]);
 907   E->NumSubExprs = AtomicExpr::getNumSubExprs(E->Op);
 908   for (unsigned I = 0; I != E->NumSubExprs; ++I)
 909     E->SubExprs[I] = Reader.ReadSubExpr();
 910   E->BuiltinLoc = ReadSourceLocation(Record, Idx);
 911   E->RParenLoc = ReadSourceLocation(Record, Idx);
 912 }
 913
 914 //===----------------------------------------------------------------------===//
 915 // Objective-C Expressions and Statements
 916
 917 void ASTStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
 918   VisitExpr(E);
 919   E->setString(cast<StringLiteral>(Reader.ReadSubStmt()));
 920   E->setAtLoc(ReadSourceLocation(Record, Idx));
 921 }
 922
 923 void ASTStmtReader::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
 924   VisitExpr(E);
 925   // could be one of several IntegerLiteral, FloatLiteral, etc.
 926   E->SubExpr = Reader.ReadSubStmt();
 927   E->BoxingMethod = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
 928   E->Range = ReadSourceRange(Record, Idx);
 929 }
 930
 931 void ASTStmtReader::VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
 932   VisitExpr(E);
 933   unsigned NumElements = Record[Idx++];
 934   assert(NumElements == E->getNumElements() && "Wrong number of elements");
 935   Expr **Elements = E->getElements();
 936   for (unsigned I = 0, N = NumElements; I != N; ++I)
 937     Elements[I] = Reader.ReadSubExpr();
 938   E->ArrayWithObjectsMethod = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
 939   E->Range = ReadSourceRange(Record, Idx);
 940 }
 941
 942 void ASTStmtReader::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
 943   VisitExpr(E);
 944   unsigned NumElements = Record[Idx++];
 945   assert(NumElements == E->getNumElements() && "Wrong number of elements");
 946   bool HasPackExpansions = Record[Idx++];
 947   assert(HasPackExpansions == E->HasPackExpansions &&"Pack expansion mismatch");
 948   ObjCDictionaryLiteral::KeyValuePair *KeyValues = E->getKeyValues();
 949   ObjCDictionaryLiteral::ExpansionData *Expansions = E->getExpansionData();
 950   for (unsigned I = 0; I != NumElements; ++I) {
 951     KeyValues[I].Key = Reader.ReadSubExpr();
 952     KeyValues[I].Value = Reader.ReadSubExpr();
 953     if (HasPackExpansions) {
 954       Expansions[I].EllipsisLoc = ReadSourceLocation(Record, Idx);
 955       Expansions[I].NumExpansionsPlusOne = Record[Idx++];
 956     }
 957   }
 958   E->DictWithObjectsMethod = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
 959   E->Range = ReadSourceRange(Record, Idx);
 960 }
 961
 962 void ASTStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
 963   VisitExpr(E);
 964   E->setEncodedTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
 965   E->setAtLoc(ReadSourceLocation(Record, Idx));
 966   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 967 }
 968
 969 void ASTStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
 970   VisitExpr(E);
 971   E->setSelector(Reader.ReadSelector(F, Record, Idx));
 972   E->setAtLoc(ReadSourceLocation(Record, Idx));
 973   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 974 }
 975
 976 void ASTStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
 977   VisitExpr(E);
 978   E->setProtocol(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
 979   E->setAtLoc(ReadSourceLocation(Record, Idx));
 980   E->ProtoLoc = ReadSourceLocation(Record, Idx);
 981   E->setRParenLoc(ReadSourceLocation(Record, Idx));
 982 }
 983
 984 void ASTStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
 985   VisitExpr(E);
 986   E->setDecl(ReadDeclAs<ObjCIvarDecl>(Record, Idx));
 987   E->setLocation(ReadSourceLocation(Record, Idx));
 988   E->setOpLoc(ReadSourceLocation(Record, Idx));
 989   E->setBase(Reader.ReadSubExpr());
 990   E->setIsArrow(Record[Idx++]);
 991   E->setIsFreeIvar(Record[Idx++]);
 992 }
 993
 994 void ASTStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
 995   VisitExpr(E);
 996   unsigned MethodRefFlags = Record[Idx++];
 997   bool Implicit = Record[Idx++] != 0;
 998   if (Implicit) {
 999     ObjCMethodDecl *Getter = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
1000     ObjCMethodDecl *Setter = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
1001     E->setImplicitProperty(Getter, Setter, MethodRefFlags);
1002   } else {
1003     E->setExplicitProperty(ReadDeclAs<ObjCPropertyDecl>(Record, Idx),
1004                            MethodRefFlags);
1005   }
1006   E->setLocation(ReadSourceLocation(Record, Idx));
1007   E->setReceiverLocation(ReadSourceLocation(Record, Idx));
1008   switch (Record[Idx++]) {
1009   case 0:
1010     E->setBase(Reader.ReadSubExpr());
1011     break;
1012   case 1:
1013     E->setSuperReceiver(Reader.readType(F, Record, Idx));
1014     break;
1015   case 2:
1016     E->setClassReceiver(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
1017     break;
1018   }
1019 }
1020
1021 void ASTStmtReader::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
1022   VisitExpr(E);
1023   E->setRBracket(ReadSourceLocation(Record, Idx));
1024   E->setBaseExpr(Reader.ReadSubExpr());
1025   E->setKeyExpr(Reader.ReadSubExpr());
1026   E->GetAtIndexMethodDecl = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
1027   E->SetAtIndexMethodDecl = ReadDeclAs<ObjCMethodDecl>(Record, Idx);
1028 }
1029
1030 void ASTStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
1031   VisitExpr(E);
1032   assert(Record[Idx] == E->getNumArgs());
1033   ++Idx;
1034   unsigned NumStoredSelLocs = Record[Idx++];
1035   E->SelLocsKind = Record[Idx++];
1036   E->setDelegateInitCall(Record[Idx++]);
1037   E->IsImplicit = Record[Idx++];
1038   ObjCMessageExpr::ReceiverKind Kind
1039     = static_cast<ObjCMessageExpr::ReceiverKind>(Record[Idx++]);
1040   switch (Kind) {
1041   case ObjCMessageExpr::Instance:
1042     E->setInstanceReceiver(Reader.ReadSubExpr());
1043     break;
1044
1045   case ObjCMessageExpr::Class:
1046     E->setClassReceiver(GetTypeSourceInfo(Record, Idx));
1047     break;
1048
1049   case ObjCMessageExpr::SuperClass:
1050   case ObjCMessageExpr::SuperInstance: {
1051     QualType T = Reader.readType(F, Record, Idx);
1052     SourceLocation SuperLoc = ReadSourceLocation(Record, Idx);
1053     E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
1054     break;
1055   }
1056   }
1057
1058   assert(Kind == E->getReceiverKind());
1059
1060   if (Record[Idx++])
1061     E->setMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx));
1062   else
1063     E->setSelector(Reader.ReadSelector(F, Record, Idx));
1064
1065   E->LBracLoc = ReadSourceLocation(Record, Idx);
1066   E->RBracLoc = ReadSourceLocation(Record, Idx);
1067
1068   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1069     E->setArg(I, Reader.ReadSubExpr());
1070
1071   SourceLocation *Locs = E->getStoredSelLocs();
1072   for (unsigned I = 0; I != NumStoredSelLocs; ++I)
1073     Locs[I] = ReadSourceLocation(Record, Idx);
1074 }
1075
1076 void ASTStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
1077   VisitStmt(S);
1078   S->setElement(Reader.ReadSubStmt());
1079   S->setCollection(Reader.ReadSubExpr());
1080   S->setBody(Reader.ReadSubStmt());
1081   S->setForLoc(ReadSourceLocation(Record, Idx));
1082   S->setRParenLoc(ReadSourceLocation(Record, Idx));
1083 }
1084
1085 void ASTStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
1086   VisitStmt(S);
1087   S->setCatchBody(Reader.ReadSubStmt());
1088   S->setCatchParamDecl(ReadDeclAs<VarDecl>(Record, Idx));
1089   S->setAtCatchLoc(ReadSourceLocation(Record, Idx));
1090   S->setRParenLoc(ReadSourceLocation(Record, Idx));
1091 }
1092
1093 void ASTStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
1094   VisitStmt(S);
1095   S->setFinallyBody(Reader.ReadSubStmt());
1096   S->setAtFinallyLoc(ReadSourceLocation(Record, Idx));
1097 }
1098
1099 void ASTStmtReader::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S) {
1100   VisitStmt(S);
1101   S->setSubStmt(Reader.ReadSubStmt());
1102   S->setAtLoc(ReadSourceLocation(Record, Idx));
1103 }
1104
1105 void ASTStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
1106   VisitStmt(S);
1107   assert(Record[Idx] == S->getNumCatchStmts());
1108   ++Idx;
1109   bool HasFinally = Record[Idx++];
1110   S->setTryBody(Reader.ReadSubStmt());
1111   for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
1112     S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Reader.ReadSubStmt()));
1113
1114   if (HasFinally)
1115     S->setFinallyStmt(Reader.ReadSubStmt());
1116   S->setAtTryLoc(ReadSourceLocation(Record, Idx));
1117 }
1118
1119 void ASTStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
1120   VisitStmt(S);
1121   S->setSynchExpr(Reader.ReadSubStmt());
1122   S->setSynchBody(Reader.ReadSubStmt());
1123   S->setAtSynchronizedLoc(ReadSourceLocation(Record, Idx));
1124 }
1125
1126 void ASTStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
1127   VisitStmt(S);
1128   S->setThrowExpr(Reader.ReadSubStmt());
1129   S->setThrowLoc(ReadSourceLocation(Record, Idx));
1130 }
1131
1132 void ASTStmtReader::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
1133   VisitExpr(E);
1134   E->setValue(Record[Idx++]);
1135   E->setLocation(ReadSourceLocation(Record, Idx));
1136 }
1137
1138 //===----------------------------------------------------------------------===//
1139 // C++ Expressions and Statements
1140 //===----------------------------------------------------------------------===//
1141
1142 void ASTStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
1143   VisitStmt(S);
1144   S->CatchLoc = ReadSourceLocation(Record, Idx);
1145   S->ExceptionDecl = ReadDeclAs<VarDecl>(Record, Idx);
1146   S->HandlerBlock = Reader.ReadSubStmt();
1147 }
1148
1149 void ASTStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
1150   VisitStmt(S);
1151   assert(Record[Idx] == S->getNumHandlers() && "NumStmtFields is wrong ?");
1152   ++Idx;
1153   S->TryLoc = ReadSourceLocation(Record, Idx);
1154   S->getStmts()[0] = Reader.ReadSubStmt();
1155   for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
1156     S->getStmts()[i + 1] = Reader.ReadSubStmt();
1157 }
1158
1159 void ASTStmtReader::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
1160   VisitStmt(S);
1161   S->setForLoc(ReadSourceLocation(Record, Idx));
1162   S->setColonLoc(ReadSourceLocation(Record, Idx));
1163   S->setRParenLoc(ReadSourceLocation(Record, Idx));
1164   S->setRangeStmt(Reader.ReadSubStmt());
1165   S->setBeginEndStmt(Reader.ReadSubStmt());
1166   S->setCond(Reader.ReadSubExpr());
1167   S->setInc(Reader.ReadSubExpr());
1168   S->setLoopVarStmt(Reader.ReadSubStmt());
1169   S->setBody(Reader.ReadSubStmt());
1170 }
1171
1172 void ASTStmtReader::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1173   VisitStmt(S);
1174   S->KeywordLoc = ReadSourceLocation(Record, Idx);
1175   S->IsIfExists = Record[Idx++];
1176   S->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
1177   ReadDeclarationNameInfo(S->NameInfo, Record, Idx);
1178   S->SubStmt = Reader.ReadSubStmt();
1179 }
1180
1181 void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1182   VisitCallExpr(E);
1183   E->Operator = (OverloadedOperatorKind)Record[Idx++];
1184   E->Range = Reader.ReadSourceRange(F, Record, Idx);
1185   E->setFPContractable((bool)Record[Idx++]);
1186 }
1187
1188 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
1189   VisitExpr(E);
1190   E->NumArgs = Record[Idx++];
1191   if (E->NumArgs)
1192     E->Args = new (Reader.getContext()) Stmt*[E->NumArgs];
1193   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1194     E->setArg(I, Reader.ReadSubExpr());
1195   E->setConstructor(ReadDeclAs<CXXConstructorDecl>(Record, Idx));
1196   E->setLocation(ReadSourceLocation(Record, Idx));
1197   E->setElidable(Record[Idx++]);
1198   E->setHadMultipleCandidates(Record[Idx++]);
1199   E->setListInitialization(Record[Idx++]);
1200   E->setStdInitListInitialization(Record[Idx++]);
1201   E->setRequiresZeroInitialization(Record[Idx++]);
1202   E->setConstructionKind((CXXConstructExpr::ConstructionKind)Record[Idx++]);
1203   E->ParenOrBraceRange = ReadSourceRange(Record, Idx);
1204 }
1205
1206 void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1207   VisitCXXConstructExpr(E);
1208   E->Type = GetTypeSourceInfo(Record, Idx);
1209 }
1210
1211 void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
1212   VisitExpr(E);
1213   unsigned NumCaptures = Record[Idx++];
1214   assert(NumCaptures == E->NumCaptures);(void)NumCaptures;
1215   unsigned NumArrayIndexVars = Record[Idx++];
1216   E->IntroducerRange = ReadSourceRange(Record, Idx);
1217   E->CaptureDefault = static_cast<LambdaCaptureDefault>(Record[Idx++]);
1218   E->CaptureDefaultLoc = ReadSourceLocation(Record, Idx);
1219   E->ExplicitParams = Record[Idx++];
1220   E->ExplicitResultType = Record[Idx++];
1221   E->ClosingBrace = ReadSourceLocation(Record, Idx);
1222
1223   // Read capture initializers.
1224   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1225                                       CEnd = E->capture_init_end();
1226        C != CEnd; ++C)
1227     *C = Reader.ReadSubExpr();
1228
1229   // Read array capture index variables.
1230   if (NumArrayIndexVars > 0) {
1231     unsigned *ArrayIndexStarts = E->getArrayIndexStarts();
1232     for (unsigned I = 0; I != NumCaptures + 1; ++I)
1233       ArrayIndexStarts[I] = Record[Idx++];
1234
1235     VarDecl **ArrayIndexVars = E->getArrayIndexVars();
1236     for (unsigned I = 0; I != NumArrayIndexVars; ++I)
1237       ArrayIndexVars[I] = ReadDeclAs<VarDecl>(Record, Idx);
1238   }
1239 }
1240
1241 void
1242 ASTStmtReader::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1243   VisitExpr(E);
1244   E->SubExpr = Reader.ReadSubExpr();
1245 }
1246
1247 void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1248   VisitExplicitCastExpr(E);
1249   SourceRange R = ReadSourceRange(Record, Idx);
1250   E->Loc = R.getBegin();
1251   E->RParenLoc = R.getEnd();
1252   R = ReadSourceRange(Record, Idx);
1253   E->AngleBrackets = R;
1254 }
1255
1256 void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1257   return VisitCXXNamedCastExpr(E);
1258 }
1259
1260 void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1261   return VisitCXXNamedCastExpr(E);
1262 }
1263
1264 void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1265   return VisitCXXNamedCastExpr(E);
1266 }
1267
1268 void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1269   return VisitCXXNamedCastExpr(E);
1270 }
1271
1272 void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1273   VisitExplicitCastExpr(E);
1274   E->setLParenLoc(ReadSourceLocation(Record, Idx));
1275   E->setRParenLoc(ReadSourceLocation(Record, Idx));
1276 }
1277
1278 void ASTStmtReader::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1279   VisitCallExpr(E);
1280   E->UDSuffixLoc = ReadSourceLocation(Record, Idx);
1281 }
1282
1283 void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1284   VisitExpr(E);
1285   E->setValue(Record[Idx++]);
1286   E->setLocation(ReadSourceLocation(Record, Idx));
1287 }
1288
1289 void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1290   VisitExpr(E);
1291   E->setLocation(ReadSourceLocation(Record, Idx));
1292 }
1293
1294 void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1295   VisitExpr(E);
1296   E->setSourceRange(ReadSourceRange(Record, Idx));
1297   if (E->isTypeOperand()) { // typeid(int)
1298     E->setTypeOperandSourceInfo(
1299         GetTypeSourceInfo(Record, Idx));
1300     return;
1301   }
1302
1303   // typeid(42+2)
1304   E->setExprOperand(Reader.ReadSubExpr());
1305 }
1306
1307 void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1308   VisitExpr(E);
1309   E->setLocation(ReadSourceLocation(Record, Idx));
1310   E->setImplicit(Record[Idx++]);
1311 }
1312
1313 void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1314   VisitExpr(E);
1315   E->ThrowLoc = ReadSourceLocation(Record, Idx);
1316   E->Op = Reader.ReadSubExpr();
1317   E->IsThrownVariableInScope = Record[Idx++];
1318 }
1319
1320 void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1321   VisitExpr(E);
1322
1323   assert((bool)Record[Idx] == E->Param.getInt() && "We messed up at creation ?");
1324   ++Idx; // HasOtherExprStored and SubExpr was handled during creation.
1325   E->Param.setPointer(ReadDeclAs<ParmVarDecl>(Record, Idx));
1326   E->Loc = ReadSourceLocation(Record, Idx);
1327 }
1328
1329 void ASTStmtReader::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1330   VisitExpr(E);
1331   E->Field = ReadDeclAs<FieldDecl>(Record, Idx);
1332   E->Loc = ReadSourceLocation(Record, Idx);
1333 }
1334
1335 void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1336   VisitExpr(E);
1337   E->setTemporary(Reader.ReadCXXTemporary(F, Record, Idx));
1338   E->setSubExpr(Reader.ReadSubExpr());
1339 }
1340
1341 void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1342   VisitExpr(E);
1343   E->TypeInfo = GetTypeSourceInfo(Record, Idx);
1344   E->RParenLoc = ReadSourceLocation(Record, Idx);
1345 }
1346
1347 void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1348   VisitExpr(E);
1349   E->GlobalNew = Record[Idx++];
1350   bool isArray = Record[Idx++];
1351   E->UsualArrayDeleteWantsSize = Record[Idx++];
1352   unsigned NumPlacementArgs = Record[Idx++];
1353   E->StoredInitializationStyle = Record[Idx++];
1354   E->setOperatorNew(ReadDeclAs<FunctionDecl>(Record, Idx));
1355   E->setOperatorDelete(ReadDeclAs<FunctionDecl>(Record, Idx));
1356   E->AllocatedTypeInfo = GetTypeSourceInfo(Record, Idx);
1357   E->TypeIdParens = ReadSourceRange(Record, Idx);
1358   E->Range = ReadSourceRange(Record, Idx);
1359   E->DirectInitRange = ReadSourceRange(Record, Idx);
1360
1361   E->AllocateArgsArray(Reader.getContext(), isArray, NumPlacementArgs,
1362                        E->StoredInitializationStyle != 0);
1363
1364   // Install all the subexpressions.
1365   for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),e = E->raw_arg_end();
1366        I != e; ++I)
1367     *I = Reader.ReadSubStmt();
1368 }
1369
1370 void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1371   VisitExpr(E);
1372   E->GlobalDelete = Record[Idx++];
1373   E->ArrayForm = Record[Idx++];
1374   E->ArrayFormAsWritten = Record[Idx++];
1375   E->UsualArrayDeleteWantsSize = Record[Idx++];
1376   E->OperatorDelete = ReadDeclAs<FunctionDecl>(Record, Idx);
1377   E->Argument = Reader.ReadSubExpr();
1378   E->Loc = ReadSourceLocation(Record, Idx);
1379 }
1380
1381 void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1382   VisitExpr(E);
1383
1384   E->Base = Reader.ReadSubExpr();
1385   E->IsArrow = Record[Idx++];
1386   E->OperatorLoc = ReadSourceLocation(Record, Idx);
1387   E->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
1388   E->ScopeType = GetTypeSourceInfo(Record, Idx);
1389   E->ColonColonLoc = ReadSourceLocation(Record, Idx);
1390   E->TildeLoc = ReadSourceLocation(Record, Idx);
1391
1392   IdentifierInfo *II = Reader.GetIdentifierInfo(F, Record, Idx);
1393   if (II)
1394     E->setDestroyedType(II, ReadSourceLocation(Record, Idx));
1395   else
1396     E->setDestroyedType(GetTypeSourceInfo(Record, Idx));
1397 }
1398
1399 void ASTStmtReader::VisitExprWithCleanups(ExprWithCleanups *E) {
1400   VisitExpr(E);
1401
1402   unsigned NumObjects = Record[Idx++];
1403   assert(NumObjects == E->getNumObjects());
1404   for (unsigned i = 0; i != NumObjects; ++i)
1405     E->getObjectsBuffer()[i] = ReadDeclAs<BlockDecl>(Record, Idx);
1406
1407   E->SubExpr = Reader.ReadSubExpr();
1408 }
1409
1410 void
1411 ASTStmtReader::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
1412   VisitExpr(E);
1413
1414   if (Record[Idx++]) // HasTemplateKWAndArgsInfo
1415     ReadTemplateKWAndArgsInfo(*E->getTemplateKWAndArgsInfo(),
1416                               /*NumTemplateArgs=*/Record[Idx++]);
1417
1418   E->Base = Reader.ReadSubExpr();
1419   E->BaseType = Reader.readType(F, Record, Idx);
1420   E->IsArrow = Record[Idx++];
1421   E->OperatorLoc = ReadSourceLocation(Record, Idx);
1422   E->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
1423   E->FirstQualifierFoundInScope = ReadDeclAs<NamedDecl>(Record, Idx);
1424   ReadDeclarationNameInfo(E->MemberNameInfo, Record, Idx);
1425 }
1426
1427 void
1428 ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1429   VisitExpr(E);
1430
1431   if (Record[Idx++]) // HasTemplateKWAndArgsInfo
1432     ReadTemplateKWAndArgsInfo(*E->getTemplateKWAndArgsInfo(),
1433                               /*NumTemplateArgs=*/Record[Idx++]);
1434
1435   E->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
1436   ReadDeclarationNameInfo(E->NameInfo, Record, Idx);
1437 }
1438
1439 void
1440 ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1441   VisitExpr(E);
1442   assert(Record[Idx] == E->arg_size() && "Read wrong record during creation ?");
1443   ++Idx; // NumArgs;
1444   for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
1445     E->setArg(I, Reader.ReadSubExpr());
1446   E->Type = GetTypeSourceInfo(Record, Idx);
1447   E->setLParenLoc(ReadSourceLocation(Record, Idx));
1448   E->setRParenLoc(ReadSourceLocation(Record, Idx));
1449 }
1450
1451 void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
1452   VisitExpr(E);
1453
1454   if (Record[Idx++]) // HasTemplateKWAndArgsInfo
1455     ReadTemplateKWAndArgsInfo(*E->getTemplateKWAndArgsInfo(),
1456                               /*NumTemplateArgs=*/Record[Idx++]);
1457
1458   unsigned NumDecls = Record[Idx++];
1459   UnresolvedSet<8> Decls;
1460   for (unsigned i = 0; i != NumDecls; ++i) {
1461     NamedDecl *D = ReadDeclAs<NamedDecl>(Record, Idx);
1462     AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
1463     Decls.addDecl(D, AS);
1464   }
1465   E->initializeResults(Reader.getContext(), Decls.begin(), Decls.end());
1466
1467   ReadDeclarationNameInfo(E->NameInfo, Record, Idx);
1468   E->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
1469 }
1470
1471 void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
1472   VisitOverloadExpr(E);
1473   E->IsArrow = Record[Idx++];
1474   E->HasUnresolvedUsing = Record[Idx++];
1475   E->Base = Reader.ReadSubExpr();
1476   E->BaseType = Reader.readType(F, Record, Idx);
1477   E->OperatorLoc = ReadSourceLocation(Record, Idx);
1478 }
1479
1480 void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
1481   VisitOverloadExpr(E);
1482   E->RequiresADL = Record[Idx++];
1483   E->Overloaded = Record[Idx++];
1484   E->NamingClass = ReadDeclAs<CXXRecordDecl>(Record, Idx);
1485 }
1486
1487 void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
1488   VisitExpr(E);
1489   E->TypeTraitExprBits.NumArgs = Record[Idx++];
1490   E->TypeTraitExprBits.Kind = Record[Idx++];
1491   E->TypeTraitExprBits.Value = Record[Idx++];
1492   SourceRange Range = ReadSourceRange(Record, Idx);
1493   E->Loc = Range.getBegin();
1494   E->RParenLoc = Range.getEnd();
1495
1496   TypeSourceInfo **Args = E->getTypeSourceInfos();
1497   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1498     Args[I] = GetTypeSourceInfo(Record, Idx);
1499 }
1500
1501 void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
1502   VisitExpr(E);
1503   E->ATT = (ArrayTypeTrait)Record[Idx++];
1504   E->Value = (unsigned int)Record[Idx++];
1505   SourceRange Range = ReadSourceRange(Record, Idx);
1506   E->Loc = Range.getBegin();
1507   E->RParen = Range.getEnd();
1508   E->QueriedType = GetTypeSourceInfo(Record, Idx);
1509 }
1510
1511 void ASTStmtReader::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
1512   VisitExpr(E);
1513   E->ET = (ExpressionTrait)Record[Idx++];
1514   E->Value = (bool)Record[Idx++];
1515   SourceRange Range = ReadSourceRange(Record, Idx);
1516   E->QueriedExpression = Reader.ReadSubExpr();
1517   E->Loc = Range.getBegin();
1518   E->RParen = Range.getEnd();
1519 }
1520
1521 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1522   VisitExpr(E);
1523   E->Value = (bool)Record[Idx++];
1524   E->Range = ReadSourceRange(Record, Idx);
1525   E->Operand = Reader.ReadSubExpr();
1526 }
1527
1528 void ASTStmtReader::VisitPackExpansionExpr(PackExpansionExpr *E) {
1529   VisitExpr(E);
1530   E->EllipsisLoc = ReadSourceLocation(Record, Idx);
1531   E->NumExpansions = Record[Idx++];
1532   E->Pattern = Reader.ReadSubExpr();
1533 }
1534
1535 void ASTStmtReader::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
1536   VisitExpr(E);
1537   E->OperatorLoc = ReadSourceLocation(Record, Idx);
1538   E->PackLoc = ReadSourceLocation(Record, Idx);
1539   E->RParenLoc = ReadSourceLocation(Record, Idx);
1540   E->Length = Record[Idx++];
1541   E->Pack = ReadDeclAs<NamedDecl>(Record, Idx);
1542 }
1543
1544 void ASTStmtReader::VisitSubstNonTypeTemplateParmExpr(
1545                                               SubstNonTypeTemplateParmExpr *E) {
1546   VisitExpr(E);
1547   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>(Record, Idx);
1548   E->NameLoc = ReadSourceLocation(Record, Idx);
1549   E->Replacement = Reader.ReadSubExpr();
1550 }
1551
1552 void ASTStmtReader::VisitSubstNonTypeTemplateParmPackExpr(
1553                                           SubstNonTypeTemplateParmPackExpr *E) {
1554   VisitExpr(E);
1555   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>(Record, Idx);
1556   TemplateArgument ArgPack = Reader.ReadTemplateArgument(F, Record, Idx);
1557   if (ArgPack.getKind() != TemplateArgument::Pack)
1558     return;
1559
1560   E->Arguments = ArgPack.pack_begin();
1561   E->NumArguments = ArgPack.pack_size();
1562   E->NameLoc = ReadSourceLocation(Record, Idx);
1563 }
1564
1565 void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
1566   VisitExpr(E);
1567   E->NumParameters = Record[Idx++];
1568   E->ParamPack = ReadDeclAs<ParmVarDecl>(Record, Idx);
1569   E->NameLoc = ReadSourceLocation(Record, Idx);
1570   ParmVarDecl **Parms = reinterpret_cast<ParmVarDecl**>(E+1);
1571   for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
1572     Parms[i] = ReadDeclAs<ParmVarDecl>(Record, Idx);
1573 }
1574
1575 void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
1576   VisitExpr(E);
1577   E->State = Reader.ReadSubExpr();
1578   auto VD = ReadDeclAs<ValueDecl>(Record, Idx);
1579   unsigned ManglingNumber = Record[Idx++];
1580   E->setExtendingDecl(VD, ManglingNumber);
1581 }
1582
1583 void ASTStmtReader::VisitCXXFoldExpr(CXXFoldExpr *E) {
1584   VisitExpr(E);
1585   E->LParenLoc = ReadSourceLocation(Record, Idx);
1586   E->EllipsisLoc = ReadSourceLocation(Record, Idx);
1587   E->RParenLoc = ReadSourceLocation(Record, Idx);
1588   E->SubExprs[0] = Reader.ReadSubExpr();
1589   E->SubExprs[1] = Reader.ReadSubExpr();
1590   E->Opcode = (BinaryOperatorKind)Record[Idx++];
1591 }
1592
1593 void ASTStmtReader::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
1594   VisitExpr(E);
1595   E->SourceExpr = Reader.ReadSubExpr();
1596   E->Loc = ReadSourceLocation(Record, Idx);
1597 }
1598
1599 void ASTStmtReader::VisitTypoExpr(TypoExpr *E) {
1600   llvm_unreachable("Cannot read TypoExpr nodes");
1601 }
1602
1603 //===----------------------------------------------------------------------===//
1604 // Microsoft Expressions and Statements
1605 //===----------------------------------------------------------------------===//
1606 void ASTStmtReader::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
1607   VisitExpr(E);
1608   E->IsArrow = (Record[Idx++] != 0);
1609   E->BaseExpr = Reader.ReadSubExpr();
1610   E->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
1611   E->MemberLoc = ReadSourceLocation(Record, Idx);
1612   E->TheDecl = ReadDeclAs<MSPropertyDecl>(Record, Idx);
1613 }
1614
1615 void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
1616   VisitExpr(E);
1617   E->setSourceRange(ReadSourceRange(Record, Idx));
1618   if (E->isTypeOperand()) { // __uuidof(ComType)
1619     E->setTypeOperandSourceInfo(
1620         GetTypeSourceInfo(Record, Idx));
1621     return;
1622   }
1623
1624   // __uuidof(expr)
1625   E->setExprOperand(Reader.ReadSubExpr());
1626 }
1627
1628 void ASTStmtReader::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
1629   VisitStmt(S);
1630   S->setLeaveLoc(ReadSourceLocation(Record, Idx));
1631 }
1632
1633 void ASTStmtReader::VisitSEHExceptStmt(SEHExceptStmt *S) {
1634   VisitStmt(S);
1635   S->Loc = ReadSourceLocation(Record, Idx);
1636   S->Children[SEHExceptStmt::FILTER_EXPR] = Reader.ReadSubStmt();
1637   S->Children[SEHExceptStmt::BLOCK] = Reader.ReadSubStmt();
1638 }
1639
1640 void ASTStmtReader::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
1641   VisitStmt(S);
1642   S->Loc = ReadSourceLocation(Record, Idx);
1643   S->Block = Reader.ReadSubStmt();
1644 }
1645
1646 void ASTStmtReader::VisitSEHTryStmt(SEHTryStmt *S) {
1647   VisitStmt(S);
1648   S->IsCXXTry = Record[Idx++];
1649   S->TryLoc = ReadSourceLocation(Record, Idx);
1650   S->Children[SEHTryStmt::TRY] = Reader.ReadSubStmt();
1651   S->Children[SEHTryStmt::HANDLER] = Reader.ReadSubStmt();
1652 }
1653
1654 //===----------------------------------------------------------------------===//
1655 // CUDA Expressions and Statements
1656 //===----------------------------------------------------------------------===//
1657
1658 void ASTStmtReader::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
1659   VisitCallExpr(E);
1660   E->setConfig(cast<CallExpr>(Reader.ReadSubExpr()));
1661 }
1662
1663 //===----------------------------------------------------------------------===//
1664 // OpenCL Expressions and Statements.
1665 //===----------------------------------------------------------------------===//
1666 void ASTStmtReader::VisitAsTypeExpr(AsTypeExpr *E) {
1667   VisitExpr(E);
1668   E->BuiltinLoc = ReadSourceLocation(Record, Idx);
1669   E->RParenLoc = ReadSourceLocation(Record, Idx);
1670   E->SrcExpr = Reader.ReadSubExpr();
1671 }
1672
1673 //===----------------------------------------------------------------------===//
1674 // OpenMP Clauses.
1675 //===----------------------------------------------------------------------===//
1676
1677 namespace clang {
1678 class OMPClauseReader : public OMPClauseVisitor<OMPClauseReader> {
1679   ASTStmtReader *Reader;
1680   ASTContext &Context;
1681   const ASTReader::RecordData &Record;
1682   unsigned &Idx;
1683 public:
1684   OMPClauseReader(ASTStmtReader *R, ASTContext &C,
1685                   const ASTReader::RecordData &Record, unsigned &Idx)
1686     : Reader(R), Context(C), Record(Record), Idx(Idx) { }
1687 #define OPENMP_CLAUSE(Name, Class)    \
1688   void Visit##Class(Class *S);
1689 #include "clang/Basic/OpenMPKinds.def"
1690   OMPClause *readClause();
1691 };
1692 }
1693
1694 OMPClause *OMPClauseReader::readClause() {
1695   OMPClause *C;
1696   switch (Record[Idx++]) {
1697   case OMPC_if:
1698     C = new (Context) OMPIfClause();
1699     break;
1700   case OMPC_final:
1701     C = new (Context) OMPFinalClause();
1702     break;
1703   case OMPC_num_threads:
1704     C = new (Context) OMPNumThreadsClause();
1705     break;
1706   case OMPC_safelen:
1707     C = new (Context) OMPSafelenClause();
1708     break;
1709   case OMPC_collapse:
1710     C = new (Context) OMPCollapseClause();
1711     break;
1712   case OMPC_default:
1713     C = new (Context) OMPDefaultClause();
1714     break;
1715   case OMPC_proc_bind:
1716     C = new (Context) OMPProcBindClause();
1717     break;
1718   case OMPC_schedule:
1719     C = new (Context) OMPScheduleClause();
1720     break;
1721   case OMPC_ordered:
1722     C = new (Context) OMPOrderedClause();
1723     break;
1724   case OMPC_nowait:
1725     C = new (Context) OMPNowaitClause();
1726     break;
1727   case OMPC_untied:
1728     C = new (Context) OMPUntiedClause();
1729     break;
1730   case OMPC_mergeable:
1731     C = new (Context) OMPMergeableClause();
1732     break;
1733   case OMPC_read:
1734     C = new (Context) OMPReadClause();
1735     break;
1736   case OMPC_write:
1737     C = new (Context) OMPWriteClause();
1738     break;
1739   case OMPC_update:
1740     C = new (Context) OMPUpdateClause();
1741     break;
1742   case OMPC_capture:
1743     C = new (Context) OMPCaptureClause();
1744     break;
1745   case OMPC_seq_cst:
1746     C = new (Context) OMPSeqCstClause();
1747     break;
1748   case OMPC_private:
1749     C = OMPPrivateClause::CreateEmpty(Context, Record[Idx++]);
1750     break;
1751   case OMPC_firstprivate:
1752     C = OMPFirstprivateClause::CreateEmpty(Context, Record[Idx++]);
1753     break;
1754   case OMPC_lastprivate:
1755     C = OMPLastprivateClause::CreateEmpty(Context, Record[Idx++]);
1756     break;
1757   case OMPC_shared:
1758     C = OMPSharedClause::CreateEmpty(Context, Record[Idx++]);
1759     break;
1760   case OMPC_reduction:
1761     C = OMPReductionClause::CreateEmpty(Context, Record[Idx++]);
1762     break;
1763   case OMPC_linear:
1764     C = OMPLinearClause::CreateEmpty(Context, Record[Idx++]);
1765     break;
1766   case OMPC_aligned:
1767     C = OMPAlignedClause::CreateEmpty(Context, Record[Idx++]);
1768     break;
1769   case OMPC_copyin:
1770     C = OMPCopyinClause::CreateEmpty(Context, Record[Idx++]);
1771     break;
1772   case OMPC_copyprivate:
1773     C = OMPCopyprivateClause::CreateEmpty(Context, Record[Idx++]);
1774     break;
1775   case OMPC_flush:
1776     C = OMPFlushClause::CreateEmpty(Context, Record[Idx++]);
1777     break;
1778   }
1779   Visit(C);
1780   C->setLocStart(Reader->ReadSourceLocation(Record, Idx));
1781   C->setLocEnd(Reader->ReadSourceLocation(Record, Idx));
1782
1783   return C;
1784 }
1785
1786 void OMPClauseReader::VisitOMPIfClause(OMPIfClause *C) {
1787   C->setCondition(Reader->Reader.ReadSubExpr());
1788   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1789 }
1790
1791 void OMPClauseReader::VisitOMPFinalClause(OMPFinalClause *C) {
1792   C->setCondition(Reader->Reader.ReadSubExpr());
1793   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1794 }
1795
1796 void OMPClauseReader::VisitOMPNumThreadsClause(OMPNumThreadsClause *C) {
1797   C->setNumThreads(Reader->Reader.ReadSubExpr());
1798   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1799 }
1800
1801 void OMPClauseReader::VisitOMPSafelenClause(OMPSafelenClause *C) {
1802   C->setSafelen(Reader->Reader.ReadSubExpr());
1803   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1804 }
1805
1806 void OMPClauseReader::VisitOMPCollapseClause(OMPCollapseClause *C) {
1807   C->setNumForLoops(Reader->Reader.ReadSubExpr());
1808   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1809 }
1810
1811 void OMPClauseReader::VisitOMPDefaultClause(OMPDefaultClause *C) {
1812   C->setDefaultKind(
1813        static_cast<OpenMPDefaultClauseKind>(Record[Idx++]));
1814   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1815   C->setDefaultKindKwLoc(Reader->ReadSourceLocation(Record, Idx));
1816 }
1817
1818 void OMPClauseReader::VisitOMPProcBindClause(OMPProcBindClause *C) {
1819   C->setProcBindKind(
1820        static_cast<OpenMPProcBindClauseKind>(Record[Idx++]));
1821   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1822   C->setProcBindKindKwLoc(Reader->ReadSourceLocation(Record, Idx));
1823 }
1824
1825 void OMPClauseReader::VisitOMPScheduleClause(OMPScheduleClause *C) {
1826   C->setScheduleKind(
1827        static_cast<OpenMPScheduleClauseKind>(Record[Idx++]));
1828   C->setChunkSize(Reader->Reader.ReadSubExpr());
1829   C->setHelperChunkSize(Reader->Reader.ReadSubExpr());
1830   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1831   C->setScheduleKindLoc(Reader->ReadSourceLocation(Record, Idx));
1832   C->setCommaLoc(Reader->ReadSourceLocation(Record, Idx));
1833 }
1834
1835 void OMPClauseReader::VisitOMPOrderedClause(OMPOrderedClause *) {}
1836
1837 void OMPClauseReader::VisitOMPNowaitClause(OMPNowaitClause *) {}
1838
1839 void OMPClauseReader::VisitOMPUntiedClause(OMPUntiedClause *) {}
1840
1841 void OMPClauseReader::VisitOMPMergeableClause(OMPMergeableClause *) {}
1842
1843 void OMPClauseReader::VisitOMPReadClause(OMPReadClause *) {}
1844
1845 void OMPClauseReader::VisitOMPWriteClause(OMPWriteClause *) {}
1846
1847 void OMPClauseReader::VisitOMPUpdateClause(OMPUpdateClause *) {}
1848
1849 void OMPClauseReader::VisitOMPCaptureClause(OMPCaptureClause *) {}
1850
1851 void OMPClauseReader::VisitOMPSeqCstClause(OMPSeqCstClause *) {}
1852
1853 void OMPClauseReader::VisitOMPPrivateClause(OMPPrivateClause *C) {
1854   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1855   unsigned NumVars = C->varlist_size();
1856   SmallVector<Expr *, 16> Vars;
1857   Vars.reserve(NumVars);
1858   for (unsigned i = 0; i != NumVars; ++i)
1859     Vars.push_back(Reader->Reader.ReadSubExpr());
1860   C->setVarRefs(Vars);
1861   Vars.clear();
1862   for (unsigned i = 0; i != NumVars; ++i)
1863     Vars.push_back(Reader->Reader.ReadSubExpr());
1864   C->setPrivateCopies(Vars);
1865 }
1866
1867 void OMPClauseReader::VisitOMPFirstprivateClause(OMPFirstprivateClause *C) {
1868   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1869   unsigned NumVars = C->varlist_size();
1870   SmallVector<Expr *, 16> Vars;
1871   Vars.reserve(NumVars);
1872   for (unsigned i = 0; i != NumVars; ++i)
1873     Vars.push_back(Reader->Reader.ReadSubExpr());
1874   C->setVarRefs(Vars);
1875   Vars.clear();
1876   for (unsigned i = 0; i != NumVars; ++i)
1877     Vars.push_back(Reader->Reader.ReadSubExpr());
1878   C->setPrivateCopies(Vars);
1879   Vars.clear();
1880   for (unsigned i = 0; i != NumVars; ++i)
1881     Vars.push_back(Reader->Reader.ReadSubExpr());
1882   C->setInits(Vars);
1883 }
1884
1885 void OMPClauseReader::VisitOMPLastprivateClause(OMPLastprivateClause *C) {
1886   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1887   unsigned NumVars = C->varlist_size();
1888   SmallVector<Expr *, 16> Vars;
1889   Vars.reserve(NumVars);
1890   for (unsigned i = 0; i != NumVars; ++i)
1891     Vars.push_back(Reader->Reader.ReadSubExpr());
1892   C->setVarRefs(Vars);
1893   Vars.clear();
1894   for (unsigned i = 0; i != NumVars; ++i)
1895     Vars.push_back(Reader->Reader.ReadSubExpr());
1896   C->setPrivateCopies(Vars);
1897   Vars.clear();
1898   for (unsigned i = 0; i != NumVars; ++i)
1899     Vars.push_back(Reader->Reader.ReadSubExpr());
1900   C->setSourceExprs(Vars);
1901   Vars.clear();
1902   for (unsigned i = 0; i != NumVars; ++i)
1903     Vars.push_back(Reader->Reader.ReadSubExpr());
1904   C->setDestinationExprs(Vars);
1905   Vars.clear();
1906   for (unsigned i = 0; i != NumVars; ++i)
1907     Vars.push_back(Reader->Reader.ReadSubExpr());
1908   C->setAssignmentOps(Vars);
1909 }
1910
1911 void OMPClauseReader::VisitOMPSharedClause(OMPSharedClause *C) {
1912   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1913   unsigned NumVars = C->varlist_size();
1914   SmallVector<Expr *, 16> Vars;
1915   Vars.reserve(NumVars);
1916   for (unsigned i = 0; i != NumVars; ++i)
1917     Vars.push_back(Reader->Reader.ReadSubExpr());
1918   C->setVarRefs(Vars);
1919 }
1920
1921 void OMPClauseReader::VisitOMPReductionClause(OMPReductionClause *C) {
1922   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1923   C->setColonLoc(Reader->ReadSourceLocation(Record, Idx));
1924   NestedNameSpecifierLoc NNSL =
1925     Reader->Reader.ReadNestedNameSpecifierLoc(Reader->F, Record, Idx);
1926   DeclarationNameInfo DNI;
1927   Reader->ReadDeclarationNameInfo(DNI, Record, Idx);
1928   C->setQualifierLoc(NNSL);
1929   C->setNameInfo(DNI);
1930
1931   unsigned NumVars = C->varlist_size();
1932   SmallVector<Expr *, 16> Vars;
1933   Vars.reserve(NumVars);
1934   for (unsigned i = 0; i != NumVars; ++i)
1935     Vars.push_back(Reader->Reader.ReadSubExpr());
1936   C->setVarRefs(Vars);
1937   Vars.clear();
1938   for (unsigned i = 0; i != NumVars; ++i)
1939     Vars.push_back(Reader->Reader.ReadSubExpr());
1940   C->setLHSExprs(Vars);
1941   Vars.clear();
1942   for (unsigned i = 0; i != NumVars; ++i)
1943     Vars.push_back(Reader->Reader.ReadSubExpr());
1944   C->setRHSExprs(Vars);
1945   Vars.clear();
1946   for (unsigned i = 0; i != NumVars; ++i)
1947     Vars.push_back(Reader->Reader.ReadSubExpr());
1948   C->setReductionOps(Vars);
1949 }
1950
1951 void OMPClauseReader::VisitOMPLinearClause(OMPLinearClause *C) {
1952   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1953   C->setColonLoc(Reader->ReadSourceLocation(Record, Idx));
1954   unsigned NumVars = C->varlist_size();
1955   SmallVector<Expr *, 16> Vars;
1956   Vars.reserve(NumVars);
1957   for (unsigned i = 0; i != NumVars; ++i)
1958     Vars.push_back(Reader->Reader.ReadSubExpr());
1959   C->setVarRefs(Vars);
1960   Vars.clear();
1961   for (unsigned i = 0; i != NumVars; ++i)
1962     Vars.push_back(Reader->Reader.ReadSubExpr());
1963   C->setInits(Vars);
1964   Vars.clear();
1965   for (unsigned i = 0; i != NumVars; ++i)
1966     Vars.push_back(Reader->Reader.ReadSubExpr());
1967   C->setUpdates(Vars);
1968   Vars.clear();
1969   for (unsigned i = 0; i != NumVars; ++i)
1970     Vars.push_back(Reader->Reader.ReadSubExpr());
1971   C->setFinals(Vars);
1972   C->setStep(Reader->Reader.ReadSubExpr());
1973   C->setCalcStep(Reader->Reader.ReadSubExpr());
1974 }
1975
1976 void OMPClauseReader::VisitOMPAlignedClause(OMPAlignedClause *C) {
1977   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1978   C->setColonLoc(Reader->ReadSourceLocation(Record, Idx));
1979   unsigned NumVars = C->varlist_size();
1980   SmallVector<Expr *, 16> Vars;
1981   Vars.reserve(NumVars);
1982   for (unsigned i = 0; i != NumVars; ++i)
1983     Vars.push_back(Reader->Reader.ReadSubExpr());
1984   C->setVarRefs(Vars);
1985   C->setAlignment(Reader->Reader.ReadSubExpr());
1986 }
1987
1988 void OMPClauseReader::VisitOMPCopyinClause(OMPCopyinClause *C) {
1989   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
1990   unsigned NumVars = C->varlist_size();
1991   SmallVector<Expr *, 16> Exprs;
1992   Exprs.reserve(NumVars);
1993   for (unsigned i = 0; i != NumVars; ++i)
1994     Exprs.push_back(Reader->Reader.ReadSubExpr());
1995   C->setVarRefs(Exprs);
1996   Exprs.clear();
1997   for (unsigned i = 0; i != NumVars; ++i)
1998     Exprs.push_back(Reader->Reader.ReadSubExpr());
1999   C->setSourceExprs(Exprs);
2000   Exprs.clear();
2001   for (unsigned i = 0; i != NumVars; ++i)
2002     Exprs.push_back(Reader->Reader.ReadSubExpr());
2003   C->setDestinationExprs(Exprs);
2004   Exprs.clear();
2005   for (unsigned i = 0; i != NumVars; ++i)
2006     Exprs.push_back(Reader->Reader.ReadSubExpr());
2007   C->setAssignmentOps(Exprs);
2008 }
2009
2010 void OMPClauseReader::VisitOMPCopyprivateClause(OMPCopyprivateClause *C) {
2011   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
2012   unsigned NumVars = C->varlist_size();
2013   SmallVector<Expr *, 16> Exprs;
2014   Exprs.reserve(NumVars);
2015   for (unsigned i = 0; i != NumVars; ++i)
2016     Exprs.push_back(Reader->Reader.ReadSubExpr());
2017   C->setVarRefs(Exprs);
2018   Exprs.clear();
2019   for (unsigned i = 0; i != NumVars; ++i)
2020     Exprs.push_back(Reader->Reader.ReadSubExpr());
2021   C->setSourceExprs(Exprs);
2022   Exprs.clear();
2023   for (unsigned i = 0; i != NumVars; ++i)
2024     Exprs.push_back(Reader->Reader.ReadSubExpr());
2025   C->setDestinationExprs(Exprs);
2026   Exprs.clear();
2027   for (unsigned i = 0; i != NumVars; ++i)
2028     Exprs.push_back(Reader->Reader.ReadSubExpr());
2029   C->setAssignmentOps(Exprs);
2030 }
2031
2032 void OMPClauseReader::VisitOMPFlushClause(OMPFlushClause *C) {
2033   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
2034   unsigned NumVars = C->varlist_size();
2035   SmallVector<Expr *, 16> Vars;
2036   Vars.reserve(NumVars);
2037   for (unsigned i = 0; i != NumVars; ++i)
2038     Vars.push_back(Reader->Reader.ReadSubExpr());
2039   C->setVarRefs(Vars);
2040 }
2041
2042 //===----------------------------------------------------------------------===//
2043 // OpenMP Directives.
2044 //===----------------------------------------------------------------------===//
2045 void ASTStmtReader::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
2046   E->setLocStart(ReadSourceLocation(Record, Idx));
2047   E->setLocEnd(ReadSourceLocation(Record, Idx));
2048   OMPClauseReader ClauseReader(this, Reader.getContext(), Record, Idx);
2049   SmallVector<OMPClause *, 5> Clauses;
2050   for (unsigned i = 0; i < E->getNumClauses(); ++i)
2051     Clauses.push_back(ClauseReader.readClause());
2052   E->setClauses(Clauses);
2053   if (E->hasAssociatedStmt())
2054     E->setAssociatedStmt(Reader.ReadSubStmt());
2055 }
2056
2057 void ASTStmtReader::VisitOMPLoopDirective(OMPLoopDirective *D) {
2058   VisitStmt(D);
2059   // Two fields (NumClauses and CollapsedNum) were read in ReadStmtFromStream.
2060   Idx += 2;
2061   VisitOMPExecutableDirective(D);
2062   D->setIterationVariable(Reader.ReadSubExpr());
2063   D->setLastIteration(Reader.ReadSubExpr());
2064   D->setCalcLastIteration(Reader.ReadSubExpr());
2065   D->setPreCond(Reader.ReadSubExpr());
2066   auto Fst = Reader.ReadSubExpr();
2067   auto Snd = Reader.ReadSubExpr();
2068   D->setCond(Fst, Snd);
2069   D->setInit(Reader.ReadSubExpr());
2070   D->setInc(Reader.ReadSubExpr());
2071   if (isOpenMPWorksharingDirective(D->getDirectiveKind())) {
2072     D->setIsLastIterVariable(Reader.ReadSubExpr());
2073     D->setLowerBoundVariable(Reader.ReadSubExpr());
2074     D->setUpperBoundVariable(Reader.ReadSubExpr());
2075     D->setStrideVariable(Reader.ReadSubExpr());
2076     D->setEnsureUpperBound(Reader.ReadSubExpr());
2077     D->setNextLowerBound(Reader.ReadSubExpr());
2078     D->setNextUpperBound(Reader.ReadSubExpr());
2079   }
2080   SmallVector<Expr *, 4> Sub;
2081   unsigned CollapsedNum = D->getCollapsedNumber();
2082   Sub.reserve(CollapsedNum);
2083   for (unsigned i = 0; i < CollapsedNum; ++i)
2084     Sub.push_back(Reader.ReadSubExpr());
2085   D->setCounters(Sub);
2086   Sub.clear();
2087   for (unsigned i = 0; i < CollapsedNum; ++i)
2088     Sub.push_back(Reader.ReadSubExpr());
2089   D->setUpdates(Sub);
2090   Sub.clear();
2091   for (unsigned i = 0; i < CollapsedNum; ++i)
2092     Sub.push_back(Reader.ReadSubExpr());
2093   D->setFinals(Sub);
2094 }
2095
2096 void ASTStmtReader::VisitOMPParallelDirective(OMPParallelDirective *D) {
2097   VisitStmt(D);
2098   // The NumClauses field was read in ReadStmtFromStream.
2099   ++Idx;
2100   VisitOMPExecutableDirective(D);
2101 }
2102
2103 void ASTStmtReader::VisitOMPSimdDirective(OMPSimdDirective *D) {
2104   VisitOMPLoopDirective(D);
2105 }
2106
2107 void ASTStmtReader::VisitOMPForDirective(OMPForDirective *D) {
2108   VisitOMPLoopDirective(D);
2109 }
2110
2111 void ASTStmtReader::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
2112   VisitOMPLoopDirective(D);
2113 }
2114
2115 void ASTStmtReader::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
2116   VisitStmt(D);
2117   // The NumClauses field was read in ReadStmtFromStream.
2118   ++Idx;
2119   VisitOMPExecutableDirective(D);
2120 }
2121
2122 void ASTStmtReader::VisitOMPSectionDirective(OMPSectionDirective *D) {
2123   VisitStmt(D);
2124   VisitOMPExecutableDirective(D);
2125 }
2126
2127 void ASTStmtReader::VisitOMPSingleDirective(OMPSingleDirective *D) {
2128   VisitStmt(D);
2129   // The NumClauses field was read in ReadStmtFromStream.
2130   ++Idx;
2131   VisitOMPExecutableDirective(D);
2132 }
2133
2134 void ASTStmtReader::VisitOMPMasterDirective(OMPMasterDirective *D) {
2135   VisitStmt(D);
2136   VisitOMPExecutableDirective(D);
2137 }
2138
2139 void ASTStmtReader::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
2140   VisitStmt(D);
2141   VisitOMPExecutableDirective(D);
2142   ReadDeclarationNameInfo(D->DirName, Record, Idx);
2143 }
2144
2145 void ASTStmtReader::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
2146   VisitOMPLoopDirective(D);
2147 }
2148
2149 void ASTStmtReader::VisitOMPParallelForSimdDirective(
2150     OMPParallelForSimdDirective *D) {
2151   VisitOMPLoopDirective(D);
2152 }
2153
2154 void ASTStmtReader::VisitOMPParallelSectionsDirective(
2155     OMPParallelSectionsDirective *D) {
2156   VisitStmt(D);
2157   // The NumClauses field was read in ReadStmtFromStream.
2158   ++Idx;
2159   VisitOMPExecutableDirective(D);
2160 }
2161
2162 void ASTStmtReader::VisitOMPTaskDirective(OMPTaskDirective *D) {
2163   VisitStmt(D);
2164   // The NumClauses field was read in ReadStmtFromStream.
2165   ++Idx;
2166   VisitOMPExecutableDirective(D);
2167 }
2168
2169 void ASTStmtReader::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
2170   VisitStmt(D);
2171   VisitOMPExecutableDirective(D);
2172 }
2173
2174 void ASTStmtReader::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
2175   VisitStmt(D);
2176   VisitOMPExecutableDirective(D);
2177 }
2178
2179 void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
2180   VisitStmt(D);
2181   VisitOMPExecutableDirective(D);
2182 }
2183
2184 void ASTStmtReader::VisitOMPFlushDirective(OMPFlushDirective *D) {
2185   VisitStmt(D);
2186   // The NumClauses field was read in ReadStmtFromStream.
2187   ++Idx;
2188   VisitOMPExecutableDirective(D);
2189 }
2190
2191 void ASTStmtReader::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
2192   VisitStmt(D);
2193   VisitOMPExecutableDirective(D);
2194 }
2195
2196 void ASTStmtReader::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2197   VisitStmt(D);
2198   // The NumClauses field was read in ReadStmtFromStream.
2199   ++Idx;
2200   VisitOMPExecutableDirective(D);
2201   D->setX(Reader.ReadSubExpr());
2202   D->setV(Reader.ReadSubExpr());
2203   D->setExpr(Reader.ReadSubExpr());
2204   D->setUpdateExpr(Reader.ReadSubExpr());
2205   D->IsXLHSInRHSPart = Record[Idx++] != 0;
2206   D->IsPostfixUpdate = Record[Idx++] != 0;
2207 }
2208
2209 void ASTStmtReader::VisitOMPTargetDirective(OMPTargetDirective *D) {
2210   VisitStmt(D);
2211   // The NumClauses field was read in ReadStmtFromStream.
2212   ++Idx;
2213   VisitOMPExecutableDirective(D);
2214 }
2215
2216 void ASTStmtReader::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2217   VisitStmt(D);
2218   // The NumClauses field was read in ReadStmtFromStream.
2219   ++Idx;
2220   VisitOMPExecutableDirective(D);
2221 }
2222
2223 //===----------------------------------------------------------------------===//
2224 // ASTReader Implementation
2225 //===----------------------------------------------------------------------===//
2226
2227 Stmt *ASTReader::ReadStmt(ModuleFile &F) {
2228   switch (ReadingKind) {
2229   case Read_None:
2230     llvm_unreachable("should not call this when not reading anything");
2231   case Read_Decl:
2232   case Read_Type:
2233     return ReadStmtFromStream(F);
2234   case Read_Stmt:
2235     return ReadSubStmt();
2236   }
2237
2238   llvm_unreachable("ReadingKind not set ?");
2239 }
2240
2241 Expr *ASTReader::ReadExpr(ModuleFile &F) {
2242   return cast_or_null<Expr>(ReadStmt(F));
2243 }
2244
2245 Expr *ASTReader::ReadSubExpr() {
2246   return cast_or_null<Expr>(ReadSubStmt());
2247 }
2248
2249 // Within the bitstream, expressions are stored in Reverse Polish
2250 // Notation, with each of the subexpressions preceding the
2251 // expression they are stored in. Subexpressions are stored from last to first.
2252 // To evaluate expressions, we continue reading expressions and placing them on
2253 // the stack, with expressions having operands removing those operands from the
2254 // stack. Evaluation terminates when we see a STMT_STOP record, and
2255 // the single remaining expression on the stack is our result.
2256 Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
2257
2258   ReadingKindTracker ReadingKind(Read_Stmt, *this);
2259   llvm::BitstreamCursor &Cursor = F.DeclsCursor;
2260
2261   // Map of offset to previously deserialized stmt. The offset points
2262   /// just after the stmt record.
2263   llvm::DenseMap<uint64_t, Stmt *> StmtEntries;
2264
2265 #ifndef NDEBUG
2266   unsigned PrevNumStmts = StmtStack.size();
2267 #endif
2268
2269   RecordData Record;
2270   unsigned Idx;
2271   ASTStmtReader Reader(*this, F, Cursor, Record, Idx);
2272   Stmt::EmptyShell Empty;
2273
2274   while (true) {
2275     llvm::BitstreamEntry Entry = Cursor.advanceSkippingSubblocks();
2276
2277     switch (Entry.Kind) {
2278     case llvm::BitstreamEntry::SubBlock: // Handled for us already.
2279     case llvm::BitstreamEntry::Error:
2280       Error("malformed block record in AST file");
2281       return nullptr;
2282     case llvm::BitstreamEntry::EndBlock:
2283       goto Done;
2284     case llvm::BitstreamEntry::Record:
2285       // The interesting case.
2286       break;
2287     }
2288
2289     Stmt *S = nullptr;
2290     Idx = 0;
2291     Record.clear();
2292     bool Finished = false;
2293     bool IsStmtReference = false;
2294     switch ((StmtCode)Cursor.readRecord(Entry.ID, Record)) {
2295     case STMT_STOP:
2296       Finished = true;
2297       break;
2298
2299     case STMT_REF_PTR:
2300       IsStmtReference = true;
2301       assert(StmtEntries.find(Record[0]) != StmtEntries.end() &&
2302              "No stmt was recorded for this offset reference!");
2303       S = StmtEntries[Record[Idx++]];
2304       break;
2305
2306     case STMT_NULL_PTR:
2307       S = nullptr;
2308       break;
2309
2310     case STMT_NULL:
2311       S = new (Context) NullStmt(Empty);
2312       break;
2313
2314     case STMT_COMPOUND:
2315       S = new (Context) CompoundStmt(Empty);
2316       break;
2317
2318     case STMT_CASE:
2319       S = new (Context) CaseStmt(Empty);
2320       break;
2321
2322     case STMT_DEFAULT:
2323       S = new (Context) DefaultStmt(Empty);
2324       break;
2325
2326     case STMT_LABEL:
2327       S = new (Context) LabelStmt(Empty);
2328       break;
2329
2330     case STMT_ATTRIBUTED:
2331       S = AttributedStmt::CreateEmpty(
2332         Context,
2333         /*NumAttrs*/Record[ASTStmtReader::NumStmtFields]);
2334       break;
2335
2336     case STMT_IF:
2337       S = new (Context) IfStmt(Empty);
2338       break;
2339
2340     case STMT_SWITCH:
2341       S = new (Context) SwitchStmt(Empty);
2342       break;
2343
2344     case STMT_WHILE:
2345       S = new (Context) WhileStmt(Empty);
2346       break;
2347
2348     case STMT_DO:
2349       S = new (Context) DoStmt(Empty);
2350       break;
2351
2352     case STMT_FOR:
2353       S = new (Context) ForStmt(Empty);
2354       break;
2355
2356     case STMT_GOTO:
2357       S = new (Context) GotoStmt(Empty);
2358       break;
2359
2360     case STMT_INDIRECT_GOTO:
2361       S = new (Context) IndirectGotoStmt(Empty);
2362       break;
2363
2364     case STMT_CONTINUE:
2365       S = new (Context) ContinueStmt(Empty);
2366       break;
2367
2368     case STMT_BREAK:
2369       S = new (Context) BreakStmt(Empty);
2370       break;
2371
2372     case STMT_RETURN:
2373       S = new (Context) ReturnStmt(Empty);
2374       break;
2375
2376     case STMT_DECL:
2377       S = new (Context) DeclStmt(Empty);
2378       break;
2379
2380     case STMT_GCCASM:
2381       S = new (Context) GCCAsmStmt(Empty);
2382       break;
2383
2384     case STMT_MSASM:
2385       S = new (Context) MSAsmStmt(Empty);
2386       break;
2387
2388     case STMT_CAPTURED:
2389       S = CapturedStmt::CreateDeserialized(Context,
2390                                            Record[ASTStmtReader::NumStmtFields]);
2391       break;
2392
2393     case EXPR_PREDEFINED:
2394       S = new (Context) PredefinedExpr(Empty);
2395       break;
2396
2397     case EXPR_DECL_REF:
2398       S = DeclRefExpr::CreateEmpty(
2399         Context,
2400         /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
2401         /*HasFoundDecl=*/Record[ASTStmtReader::NumExprFields + 1],
2402         /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 2],
2403         /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 2] ?
2404           Record[ASTStmtReader::NumExprFields + 5] : 0);
2405       break;
2406
2407     case EXPR_INTEGER_LITERAL:
2408       S = IntegerLiteral::Create(Context, Empty);
2409       break;
2410
2411     case EXPR_FLOATING_LITERAL:
2412       S = FloatingLiteral::Create(Context, Empty);
2413       break;
2414
2415     case EXPR_IMAGINARY_LITERAL:
2416       S = new (Context) ImaginaryLiteral(Empty);
2417       break;
2418
2419     case EXPR_STRING_LITERAL:
2420       S = StringLiteral::CreateEmpty(Context,
2421                                      Record[ASTStmtReader::NumExprFields + 1]);
2422       break;
2423
2424     case EXPR_CHARACTER_LITERAL:
2425       S = new (Context) CharacterLiteral(Empty);
2426       break;
2427
2428     case EXPR_PAREN:
2429       S = new (Context) ParenExpr(Empty);
2430       break;
2431
2432     case EXPR_PAREN_LIST:
2433       S = new (Context) ParenListExpr(Empty);
2434       break;
2435
2436     case EXPR_UNARY_OPERATOR:
2437       S = new (Context) UnaryOperator(Empty);
2438       break;
2439
2440     case EXPR_OFFSETOF:
2441       S = OffsetOfExpr::CreateEmpty(Context,
2442                                     Record[ASTStmtReader::NumExprFields],
2443                                     Record[ASTStmtReader::NumExprFields + 1]);
2444       break;
2445
2446     case EXPR_SIZEOF_ALIGN_OF:
2447       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);
2448       break;
2449
2450     case EXPR_ARRAY_SUBSCRIPT:
2451       S = new (Context) ArraySubscriptExpr(Empty);
2452       break;
2453
2454     case EXPR_CALL:
2455       S = new (Context) CallExpr(Context, Stmt::CallExprClass, Empty);
2456       break;
2457
2458     case EXPR_MEMBER: {
2459       // We load everything here and fully initialize it at creation.
2460       // That way we can use MemberExpr::Create and don't have to duplicate its
2461       // logic with a MemberExpr::CreateEmpty.
2462
2463       assert(Idx == 0);
2464       NestedNameSpecifierLoc QualifierLoc;
2465       if (Record[Idx++]) { // HasQualifier.
2466         QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx);
2467       }
2468
2469       SourceLocation TemplateKWLoc;
2470       TemplateArgumentListInfo ArgInfo;
2471       bool HasTemplateKWAndArgsInfo = Record[Idx++];
2472       if (HasTemplateKWAndArgsInfo) {
2473         TemplateKWLoc = ReadSourceLocation(F, Record, Idx);
2474         unsigned NumTemplateArgs = Record[Idx++];
2475         ArgInfo.setLAngleLoc(ReadSourceLocation(F, Record, Idx));
2476         ArgInfo.setRAngleLoc(ReadSourceLocation(F, Record, Idx));
2477         for (unsigned i = 0; i != NumTemplateArgs; ++i)
2478           ArgInfo.addArgument(ReadTemplateArgumentLoc(F, Record, Idx));
2479       }
2480
2481       bool HadMultipleCandidates = Record[Idx++];
2482
2483       NamedDecl *FoundD = ReadDeclAs<NamedDecl>(F, Record, Idx);
2484       AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
2485       DeclAccessPair FoundDecl = DeclAccessPair::make(FoundD, AS);
2486
2487       QualType T = readType(F, Record, Idx);
2488       ExprValueKind VK = static_cast<ExprValueKind>(Record[Idx++]);
2489       ExprObjectKind OK = static_cast<ExprObjectKind>(Record[Idx++]);
2490       Expr *Base = ReadSubExpr();
2491       ValueDecl *MemberD = ReadDeclAs<ValueDecl>(F, Record, Idx);
2492       SourceLocation MemberLoc = ReadSourceLocation(F, Record, Idx);
2493       DeclarationNameInfo MemberNameInfo(MemberD->getDeclName(), MemberLoc);
2494       bool IsArrow = Record[Idx++];
2495       SourceLocation OperatorLoc = ReadSourceLocation(F, Record, Idx);
2496
2497       S = MemberExpr::Create(Context, Base, IsArrow, OperatorLoc, QualifierLoc,
2498                              TemplateKWLoc, MemberD, FoundDecl, MemberNameInfo,
2499                              HasTemplateKWAndArgsInfo ? &ArgInfo : nullptr, T,
2500                              VK, OK);
2501       ReadDeclarationNameLoc(F, cast<MemberExpr>(S)->MemberDNLoc,
2502                              MemberD->getDeclName(), Record, Idx);
2503       if (HadMultipleCandidates)
2504         cast<MemberExpr>(S)->setHadMultipleCandidates(true);
2505       break;
2506     }
2507
2508     case EXPR_BINARY_OPERATOR:
2509       S = new (Context) BinaryOperator(Empty);
2510       break;
2511
2512     case EXPR_COMPOUND_ASSIGN_OPERATOR:
2513       S = new (Context) CompoundAssignOperator(Empty);
2514       break;
2515
2516     case EXPR_CONDITIONAL_OPERATOR:
2517       S = new (Context) ConditionalOperator(Empty);
2518       break;
2519
2520     case EXPR_BINARY_CONDITIONAL_OPERATOR:
2521       S = new (Context) BinaryConditionalOperator(Empty);
2522       break;
2523
2524     case EXPR_IMPLICIT_CAST:
2525       S = ImplicitCastExpr::CreateEmpty(Context,
2526                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2527       break;
2528
2529     case EXPR_CSTYLE_CAST:
2530       S = CStyleCastExpr::CreateEmpty(Context,
2531                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2532       break;
2533
2534     case EXPR_COMPOUND_LITERAL:
2535       S = new (Context) CompoundLiteralExpr(Empty);
2536       break;
2537
2538     case EXPR_EXT_VECTOR_ELEMENT:
2539       S = new (Context) ExtVectorElementExpr(Empty);
2540       break;
2541
2542     case EXPR_INIT_LIST:
2543       S = new (Context) InitListExpr(Empty);
2544       break;
2545
2546     case EXPR_DESIGNATED_INIT:
2547       S = DesignatedInitExpr::CreateEmpty(Context,
2548                                      Record[ASTStmtReader::NumExprFields] - 1);
2549
2550       break;
2551
2552     case EXPR_IMPLICIT_VALUE_INIT:
2553       S = new (Context) ImplicitValueInitExpr(Empty);
2554       break;
2555
2556     case EXPR_VA_ARG:
2557       S = new (Context) VAArgExpr(Empty);
2558       break;
2559
2560     case EXPR_ADDR_LABEL:
2561       S = new (Context) AddrLabelExpr(Empty);
2562       break;
2563
2564     case EXPR_STMT:
2565       S = new (Context) StmtExpr(Empty);
2566       break;
2567
2568     case EXPR_CHOOSE:
2569       S = new (Context) ChooseExpr(Empty);
2570       break;
2571
2572     case EXPR_GNU_NULL:
2573       S = new (Context) GNUNullExpr(Empty);
2574       break;
2575
2576     case EXPR_SHUFFLE_VECTOR:
2577       S = new (Context) ShuffleVectorExpr(Empty);
2578       break;
2579
2580     case EXPR_CONVERT_VECTOR:
2581       S = new (Context) ConvertVectorExpr(Empty);
2582       break;
2583
2584     case EXPR_BLOCK:
2585       S = new (Context) BlockExpr(Empty);
2586       break;
2587
2588     case EXPR_GENERIC_SELECTION:
2589       S = new (Context) GenericSelectionExpr(Empty);
2590       break;
2591
2592     case EXPR_OBJC_STRING_LITERAL:
2593       S = new (Context) ObjCStringLiteral(Empty);
2594       break;
2595     case EXPR_OBJC_BOXED_EXPRESSION:
2596       S = new (Context) ObjCBoxedExpr(Empty);
2597       break;
2598     case EXPR_OBJC_ARRAY_LITERAL:
2599       S = ObjCArrayLiteral::CreateEmpty(Context,
2600                                         Record[ASTStmtReader::NumExprFields]);
2601       break;
2602     case EXPR_OBJC_DICTIONARY_LITERAL:
2603       S = ObjCDictionaryLiteral::CreateEmpty(Context,
2604             Record[ASTStmtReader::NumExprFields],
2605             Record[ASTStmtReader::NumExprFields + 1]);
2606       break;
2607     case EXPR_OBJC_ENCODE:
2608       S = new (Context) ObjCEncodeExpr(Empty);
2609       break;
2610     case EXPR_OBJC_SELECTOR_EXPR:
2611       S = new (Context) ObjCSelectorExpr(Empty);
2612       break;
2613     case EXPR_OBJC_PROTOCOL_EXPR:
2614       S = new (Context) ObjCProtocolExpr(Empty);
2615       break;
2616     case EXPR_OBJC_IVAR_REF_EXPR:
2617       S = new (Context) ObjCIvarRefExpr(Empty);
2618       break;
2619     case EXPR_OBJC_PROPERTY_REF_EXPR:
2620       S = new (Context) ObjCPropertyRefExpr(Empty);
2621       break;
2622     case EXPR_OBJC_SUBSCRIPT_REF_EXPR:
2623       S = new (Context) ObjCSubscriptRefExpr(Empty);
2624       break;
2625     case EXPR_OBJC_KVC_REF_EXPR:
2626       llvm_unreachable("mismatching AST file");
2627     case EXPR_OBJC_MESSAGE_EXPR:
2628       S = ObjCMessageExpr::CreateEmpty(Context,
2629                                      Record[ASTStmtReader::NumExprFields],
2630                                      Record[ASTStmtReader::NumExprFields + 1]);
2631       break;
2632     case EXPR_OBJC_ISA:
2633       S = new (Context) ObjCIsaExpr(Empty);
2634       break;
2635     case EXPR_OBJC_INDIRECT_COPY_RESTORE:
2636       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);
2637       break;
2638     case EXPR_OBJC_BRIDGED_CAST:
2639       S = new (Context) ObjCBridgedCastExpr(Empty);
2640       break;
2641     case STMT_OBJC_FOR_COLLECTION:
2642       S = new (Context) ObjCForCollectionStmt(Empty);
2643       break;
2644     case STMT_OBJC_CATCH:
2645       S = new (Context) ObjCAtCatchStmt(Empty);
2646       break;
2647     case STMT_OBJC_FINALLY:
2648       S = new (Context) ObjCAtFinallyStmt(Empty);
2649       break;
2650     case STMT_OBJC_AT_TRY:
2651       S = ObjCAtTryStmt::CreateEmpty(Context,
2652                                      Record[ASTStmtReader::NumStmtFields],
2653                                      Record[ASTStmtReader::NumStmtFields + 1]);
2654       break;
2655     case STMT_OBJC_AT_SYNCHRONIZED:
2656       S = new (Context) ObjCAtSynchronizedStmt(Empty);
2657       break;
2658     case STMT_OBJC_AT_THROW:
2659       S = new (Context) ObjCAtThrowStmt(Empty);
2660       break;
2661     case STMT_OBJC_AUTORELEASE_POOL:
2662       S = new (Context) ObjCAutoreleasePoolStmt(Empty);
2663       break;
2664     case EXPR_OBJC_BOOL_LITERAL:
2665       S = new (Context) ObjCBoolLiteralExpr(Empty);
2666       break;
2667     case STMT_SEH_LEAVE:
2668       S = new (Context) SEHLeaveStmt(Empty);
2669       break;
2670     case STMT_SEH_EXCEPT:
2671       S = new (Context) SEHExceptStmt(Empty);
2672       break;
2673     case STMT_SEH_FINALLY:
2674       S = new (Context) SEHFinallyStmt(Empty);
2675       break;
2676     case STMT_SEH_TRY:
2677       S = new (Context) SEHTryStmt(Empty);
2678       break;
2679     case STMT_CXX_CATCH:
2680       S = new (Context) CXXCatchStmt(Empty);
2681       break;
2682
2683     case STMT_CXX_TRY:
2684       S = CXXTryStmt::Create(Context, Empty,
2685              /*NumHandlers=*/Record[ASTStmtReader::NumStmtFields]);
2686       break;
2687
2688     case STMT_CXX_FOR_RANGE:
2689       S = new (Context) CXXForRangeStmt(Empty);
2690       break;
2691
2692     case STMT_MS_DEPENDENT_EXISTS:
2693       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,
2694                                               NestedNameSpecifierLoc(),
2695                                               DeclarationNameInfo(),
2696                                               nullptr);
2697       break;
2698
2699     case STMT_OMP_PARALLEL_DIRECTIVE:
2700       S =
2701         OMPParallelDirective::CreateEmpty(Context,
2702                                           Record[ASTStmtReader::NumStmtFields],
2703                                           Empty);
2704       break;
2705
2706     case STMT_OMP_SIMD_DIRECTIVE: {
2707       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2708       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2709       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,
2710                                         CollapsedNum, Empty);
2711       break;
2712     }
2713
2714     case STMT_OMP_FOR_DIRECTIVE: {
2715       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2716       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2717       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2718                                        Empty);
2719       break;
2720     }
2721
2722     case STMT_OMP_FOR_SIMD_DIRECTIVE: {
2723       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2724       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2725       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2726                                            Empty);
2727       break;
2728     }
2729
2730     case STMT_OMP_SECTIONS_DIRECTIVE:
2731       S = OMPSectionsDirective::CreateEmpty(
2732           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2733       break;
2734
2735     case STMT_OMP_SECTION_DIRECTIVE:
2736       S = OMPSectionDirective::CreateEmpty(Context, Empty);
2737       break;
2738
2739     case STMT_OMP_SINGLE_DIRECTIVE:
2740       S = OMPSingleDirective::CreateEmpty(
2741           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2742       break;
2743
2744     case STMT_OMP_MASTER_DIRECTIVE:
2745       S = OMPMasterDirective::CreateEmpty(Context, Empty);
2746       break;
2747
2748     case STMT_OMP_CRITICAL_DIRECTIVE:
2749       S = OMPCriticalDirective::CreateEmpty(Context, Empty);
2750       break;
2751
2752     case STMT_OMP_PARALLEL_FOR_DIRECTIVE: {
2753       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2754       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2755       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,
2756                                                CollapsedNum, Empty);
2757       break;
2758     }
2759
2760     case STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE: {
2761       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2762       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2763       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2764                                                    CollapsedNum, Empty);
2765       break;
2766     }
2767
2768     case STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE:
2769       S = OMPParallelSectionsDirective::CreateEmpty(
2770           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2771       break;
2772
2773     case STMT_OMP_TASK_DIRECTIVE:
2774       S = OMPTaskDirective::CreateEmpty(
2775           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2776       break;
2777
2778     case STMT_OMP_TASKYIELD_DIRECTIVE:
2779       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);
2780       break;
2781
2782     case STMT_OMP_BARRIER_DIRECTIVE:
2783       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
2784       break;
2785
2786     case STMT_OMP_TASKWAIT_DIRECTIVE:
2787       S = OMPTaskwaitDirective::CreateEmpty(Context, Empty);
2788       break;
2789
2790     case STMT_OMP_FLUSH_DIRECTIVE:
2791       S = OMPFlushDirective::CreateEmpty(
2792           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2793       break;
2794
2795     case STMT_OMP_ORDERED_DIRECTIVE:
2796       S = OMPOrderedDirective::CreateEmpty(Context, Empty);
2797       break;
2798
2799     case STMT_OMP_ATOMIC_DIRECTIVE:
2800       S = OMPAtomicDirective::CreateEmpty(
2801           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2802       break;
2803
2804     case STMT_OMP_TARGET_DIRECTIVE:
2805       S = OMPTargetDirective::CreateEmpty(
2806           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2807       break;
2808
2809     case STMT_OMP_TEAMS_DIRECTIVE:
2810       S = OMPTeamsDirective::CreateEmpty(
2811           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2812       break;
2813
2814     case EXPR_CXX_OPERATOR_CALL:
2815       S = new (Context) CXXOperatorCallExpr(Context, Empty);
2816       break;
2817
2818     case EXPR_CXX_MEMBER_CALL:
2819       S = new (Context) CXXMemberCallExpr(Context, Empty);
2820       break;
2821
2822     case EXPR_CXX_CONSTRUCT:
2823       S = new (Context) CXXConstructExpr(Empty);
2824       break;
2825
2826     case EXPR_CXX_TEMPORARY_OBJECT:
2827       S = new (Context) CXXTemporaryObjectExpr(Empty);
2828       break;
2829
2830     case EXPR_CXX_STATIC_CAST:
2831       S = CXXStaticCastExpr::CreateEmpty(Context,
2832                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2833       break;
2834
2835     case EXPR_CXX_DYNAMIC_CAST:
2836       S = CXXDynamicCastExpr::CreateEmpty(Context,
2837                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2838       break;
2839
2840     case EXPR_CXX_REINTERPRET_CAST:
2841       S = CXXReinterpretCastExpr::CreateEmpty(Context,
2842                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2843       break;
2844
2845     case EXPR_CXX_CONST_CAST:
2846       S = CXXConstCastExpr::CreateEmpty(Context);
2847       break;
2848
2849     case EXPR_CXX_FUNCTIONAL_CAST:
2850       S = CXXFunctionalCastExpr::CreateEmpty(Context,
2851                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2852       break;
2853
2854     case EXPR_USER_DEFINED_LITERAL:
2855       S = new (Context) UserDefinedLiteral(Context, Empty);
2856       break;
2857
2858     case EXPR_CXX_STD_INITIALIZER_LIST:
2859       S = new (Context) CXXStdInitializerListExpr(Empty);
2860       break;
2861
2862     case EXPR_CXX_BOOL_LITERAL:
2863       S = new (Context) CXXBoolLiteralExpr(Empty);
2864       break;
2865
2866     case EXPR_CXX_NULL_PTR_LITERAL:
2867       S = new (Context) CXXNullPtrLiteralExpr(Empty);
2868       break;
2869     case EXPR_CXX_TYPEID_EXPR:
2870       S = new (Context) CXXTypeidExpr(Empty, true);
2871       break;
2872     case EXPR_CXX_TYPEID_TYPE:
2873       S = new (Context) CXXTypeidExpr(Empty, false);
2874       break;
2875     case EXPR_CXX_UUIDOF_EXPR:
2876       S = new (Context) CXXUuidofExpr(Empty, true);
2877       break;
2878     case EXPR_CXX_PROPERTY_REF_EXPR:
2879       S = new (Context) MSPropertyRefExpr(Empty);
2880       break;
2881     case EXPR_CXX_UUIDOF_TYPE:
2882       S = new (Context) CXXUuidofExpr(Empty, false);
2883       break;
2884     case EXPR_CXX_THIS:
2885       S = new (Context) CXXThisExpr(Empty);
2886       break;
2887     case EXPR_CXX_THROW:
2888       S = new (Context) CXXThrowExpr(Empty);
2889       break;
2890     case EXPR_CXX_DEFAULT_ARG: {
2891       bool HasOtherExprStored = Record[ASTStmtReader::NumExprFields];
2892       if (HasOtherExprStored) {
2893         Expr *SubExpr = ReadSubExpr();
2894         S = CXXDefaultArgExpr::Create(Context, SourceLocation(), nullptr,
2895                                       SubExpr);
2896       } else
2897         S = new (Context) CXXDefaultArgExpr(Empty);
2898       break;
2899     }
2900     case EXPR_CXX_DEFAULT_INIT:
2901       S = new (Context) CXXDefaultInitExpr(Empty);
2902       break;
2903     case EXPR_CXX_BIND_TEMPORARY:
2904       S = new (Context) CXXBindTemporaryExpr(Empty);
2905       break;
2906
2907     case EXPR_CXX_SCALAR_VALUE_INIT:
2908       S = new (Context) CXXScalarValueInitExpr(Empty);
2909       break;
2910     case EXPR_CXX_NEW:
2911       S = new (Context) CXXNewExpr(Empty);
2912       break;
2913     case EXPR_CXX_DELETE:
2914       S = new (Context) CXXDeleteExpr(Empty);
2915       break;
2916     case EXPR_CXX_PSEUDO_DESTRUCTOR:
2917       S = new (Context) CXXPseudoDestructorExpr(Empty);
2918       break;
2919
2920     case EXPR_EXPR_WITH_CLEANUPS:
2921       S = ExprWithCleanups::Create(Context, Empty,
2922                                    Record[ASTStmtReader::NumExprFields]);
2923       break;
2924
2925     case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
2926       S = CXXDependentScopeMemberExpr::CreateEmpty(Context,
2927          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
2928                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
2929                                    ? Record[ASTStmtReader::NumExprFields + 1]
2930                                    : 0);
2931       break;
2932
2933     case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
2934       S = DependentScopeDeclRefExpr::CreateEmpty(Context,
2935          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
2936                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
2937                                    ? Record[ASTStmtReader::NumExprFields + 1]
2938                                    : 0);
2939       break;
2940
2941     case EXPR_CXX_UNRESOLVED_CONSTRUCT:
2942       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,
2943                               /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
2944       break;
2945
2946     case EXPR_CXX_UNRESOLVED_MEMBER:
2947       S = UnresolvedMemberExpr::CreateEmpty(Context,
2948          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
2949                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
2950                                    ? Record[ASTStmtReader::NumExprFields + 1]
2951                                    : 0);
2952       break;
2953
2954     case EXPR_CXX_UNRESOLVED_LOOKUP:
2955       S = UnresolvedLookupExpr::CreateEmpty(Context,
2956          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
2957                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
2958                                    ? Record[ASTStmtReader::NumExprFields + 1]
2959                                    : 0);
2960       break;
2961
2962     case EXPR_TYPE_TRAIT:
2963       S = TypeTraitExpr::CreateDeserialized(Context,
2964             Record[ASTStmtReader::NumExprFields]);
2965       break;
2966
2967     case EXPR_ARRAY_TYPE_TRAIT:
2968       S = new (Context) ArrayTypeTraitExpr(Empty);
2969       break;
2970
2971     case EXPR_CXX_EXPRESSION_TRAIT:
2972       S = new (Context) ExpressionTraitExpr(Empty);
2973       break;
2974
2975     case EXPR_CXX_NOEXCEPT:
2976       S = new (Context) CXXNoexceptExpr(Empty);
2977       break;
2978
2979     case EXPR_PACK_EXPANSION:
2980       S = new (Context) PackExpansionExpr(Empty);
2981       break;
2982
2983     case EXPR_SIZEOF_PACK:
2984       S = new (Context) SizeOfPackExpr(Empty);
2985       break;
2986
2987     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM:
2988       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);
2989       break;
2990
2991     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
2992       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
2993       break;
2994
2995     case EXPR_FUNCTION_PARM_PACK:
2996       S = FunctionParmPackExpr::CreateEmpty(Context,
2997                                           Record[ASTStmtReader::NumExprFields]);
2998       break;
2999
3000     case EXPR_MATERIALIZE_TEMPORARY:
3001       S = new (Context) MaterializeTemporaryExpr(Empty);
3002       break;
3003
3004     case EXPR_CXX_FOLD:
3005       S = new (Context) CXXFoldExpr(Empty);
3006       break;
3007
3008     case EXPR_OPAQUE_VALUE:
3009       S = new (Context) OpaqueValueExpr(Empty);
3010       break;
3011
3012     case EXPR_CUDA_KERNEL_CALL:
3013       S = new (Context) CUDAKernelCallExpr(Context, Empty);
3014       break;
3015
3016     case EXPR_ASTYPE:
3017       S = new (Context) AsTypeExpr(Empty);
3018       break;
3019
3020     case EXPR_PSEUDO_OBJECT: {
3021       unsigned numSemanticExprs = Record[ASTStmtReader::NumExprFields];
3022       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);
3023       break;
3024     }
3025
3026     case EXPR_ATOMIC:
3027       S = new (Context) AtomicExpr(Empty);
3028       break;
3029
3030     case EXPR_LAMBDA: {
3031       unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
3032       unsigned NumArrayIndexVars = Record[ASTStmtReader::NumExprFields + 1];
3033       S = LambdaExpr::CreateDeserialized(Context, NumCaptures,
3034                                          NumArrayIndexVars);
3035       break;
3036     }
3037     }
3038
3039     // We hit a STMT_STOP, so we're done with this expression.
3040     if (Finished)
3041       break;
3042
3043     ++NumStatementsRead;
3044
3045     if (S && !IsStmtReference) {
3046       Reader.Visit(S);
3047       StmtEntries[Cursor.GetCurrentBitNo()] = S;
3048     }
3049
3050
3051     assert(Idx == Record.size() && "Invalid deserialization of statement");
3052     StmtStack.push_back(S);
3053   }
3054 Done:
3055   assert(StmtStack.size() > PrevNumStmts && "Read too many sub-stmts!");
3056   assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
3057   return StmtStack.pop_back_val();
3058 }