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

   1 //===--- ASTWriterStmt.cpp - Statement and Expression Serialization -------===//
   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 /// \file
  11 /// Implements serialization for Statements and Expressions.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "clang/Serialization/ASTWriter.h"
  16 #include "clang/AST/ASTContext.h"
  17 #include "clang/AST/DeclCXX.h"
  18 #include "clang/AST/DeclObjC.h"
  19 #include "clang/AST/DeclTemplate.h"
  20 #include "clang/AST/StmtVisitor.h"
  21 #include "clang/Lex/Token.h"
  22 #include "llvm/Bitcode/BitstreamWriter.h"
  23 using namespace clang;
  24
  25 //===----------------------------------------------------------------------===//
  26 // Statement/expression serialization
  27 //===----------------------------------------------------------------------===//
  28
  29 namespace clang {
  30
  31   class ASTStmtWriter : public StmtVisitor<ASTStmtWriter, void> {
  32     ASTWriter &Writer;
  33     ASTRecordWriter Record;
  34
  35     serialization::StmtCode Code;
  36     unsigned AbbrevToUse;
  37
  38   public:
  39     ASTStmtWriter(ASTWriter &Writer, ASTWriter::RecordData &Record)
  40         : Writer(Writer), Record(Writer, Record),
  41           Code(serialization::STMT_NULL_PTR), AbbrevToUse(0) {}
  42
  43     ASTStmtWriter(const ASTStmtWriter&) = delete;
  44
  45     uint64_t Emit() {
  46       assert(Code != serialization::STMT_NULL_PTR &&
  47              "unhandled sub-statement writing AST file");
  48       return Record.EmitStmt(Code, AbbrevToUse);
  49     }
  50
  51     void AddTemplateKWAndArgsInfo(const ASTTemplateKWAndArgsInfo &ArgInfo,
  52                                   const TemplateArgumentLoc *Args);
  53
  54     void VisitStmt(Stmt *S);
  55 #define STMT(Type, Base) \
  56     void Visit##Type(Type *);
  57 #include "clang/AST/StmtNodes.inc"
  58   };
  59 }
  60
  61 void ASTStmtWriter::AddTemplateKWAndArgsInfo(
  62     const ASTTemplateKWAndArgsInfo &ArgInfo, const TemplateArgumentLoc *Args) {
  63   Record.AddSourceLocation(ArgInfo.TemplateKWLoc);
  64   Record.AddSourceLocation(ArgInfo.LAngleLoc);
  65   Record.AddSourceLocation(ArgInfo.RAngleLoc);
  66   for (unsigned i = 0; i != ArgInfo.NumTemplateArgs; ++i)
  67     Record.AddTemplateArgumentLoc(Args[i]);
  68 }
  69
  70 void ASTStmtWriter::VisitStmt(Stmt *S) {
  71 }
  72
  73 void ASTStmtWriter::VisitNullStmt(NullStmt *S) {
  74   VisitStmt(S);
  75   Record.AddSourceLocation(S->getSemiLoc());
  76   Record.push_back(S->NullStmtBits.HasLeadingEmptyMacro);
  77   Code = serialization::STMT_NULL;
  78 }
  79
  80 void ASTStmtWriter::VisitCompoundStmt(CompoundStmt *S) {
  81   VisitStmt(S);
  82   Record.push_back(S->size());
  83   for (auto *CS : S->body())
  84     Record.AddStmt(CS);
  85   Record.AddSourceLocation(S->getLBracLoc());
  86   Record.AddSourceLocation(S->getRBracLoc());
  87   Code = serialization::STMT_COMPOUND;
  88 }
  89
  90 void ASTStmtWriter::VisitSwitchCase(SwitchCase *S) {
  91   VisitStmt(S);
  92   Record.push_back(Writer.getSwitchCaseID(S));
  93   Record.AddSourceLocation(S->getKeywordLoc());
  94   Record.AddSourceLocation(S->getColonLoc());
  95 }
  96
  97 void ASTStmtWriter::VisitCaseStmt(CaseStmt *S) {
  98   VisitSwitchCase(S);
  99   Record.push_back(S->caseStmtIsGNURange());
 100   Record.AddStmt(S->getLHS());
 101   Record.AddStmt(S->getSubStmt());
 102   if (S->caseStmtIsGNURange()) {
 103     Record.AddStmt(S->getRHS());
 104     Record.AddSourceLocation(S->getEllipsisLoc());
 105   }
 106   Code = serialization::STMT_CASE;
 107 }
 108
 109 void ASTStmtWriter::VisitDefaultStmt(DefaultStmt *S) {
 110   VisitSwitchCase(S);
 111   Record.AddStmt(S->getSubStmt());
 112   Code = serialization::STMT_DEFAULT;
 113 }
 114
 115 void ASTStmtWriter::VisitLabelStmt(LabelStmt *S) {
 116   VisitStmt(S);
 117   Record.AddDeclRef(S->getDecl());
 118   Record.AddStmt(S->getSubStmt());
 119   Record.AddSourceLocation(S->getIdentLoc());
 120   Code = serialization::STMT_LABEL;
 121 }
 122
 123 void ASTStmtWriter::VisitAttributedStmt(AttributedStmt *S) {
 124   VisitStmt(S);
 125   Record.push_back(S->getAttrs().size());
 126   Record.AddAttributes(S->getAttrs());
 127   Record.AddStmt(S->getSubStmt());
 128   Record.AddSourceLocation(S->getAttrLoc());
 129   Code = serialization::STMT_ATTRIBUTED;
 130 }
 131
 132 void ASTStmtWriter::VisitIfStmt(IfStmt *S) {
 133   VisitStmt(S);
 134
 135   bool HasElse = S->getElse() != nullptr;
 136   bool HasVar = S->getConditionVariableDeclStmt() != nullptr;
 137   bool HasInit = S->getInit() != nullptr;
 138
 139   Record.push_back(S->isConstexpr());
 140   Record.push_back(HasElse);
 141   Record.push_back(HasVar);
 142   Record.push_back(HasInit);
 143
 144   Record.AddStmt(S->getCond());
 145   Record.AddStmt(S->getThen());
 146   if (HasElse)
 147     Record.AddStmt(S->getElse());
 148   if (HasVar)
 149     Record.AddDeclRef(S->getConditionVariable());
 150   if (HasInit)
 151     Record.AddStmt(S->getInit());
 152
 153   Record.AddSourceLocation(S->getIfLoc());
 154   if (HasElse)
 155     Record.AddSourceLocation(S->getElseLoc());
 156
 157   Code = serialization::STMT_IF;
 158 }
 159
 160 void ASTStmtWriter::VisitSwitchStmt(SwitchStmt *S) {
 161   VisitStmt(S);
 162
 163   bool HasInit = S->getInit() != nullptr;
 164   bool HasVar = S->getConditionVariableDeclStmt() != nullptr;
 165   Record.push_back(HasInit);
 166   Record.push_back(HasVar);
 167   Record.push_back(S->isAllEnumCasesCovered());
 168
 169   Record.AddStmt(S->getCond());
 170   Record.AddStmt(S->getBody());
 171   if (HasInit)
 172     Record.AddStmt(S->getInit());
 173   if (HasVar)
 174     Record.AddDeclRef(S->getConditionVariable());
 175
 176   Record.AddSourceLocation(S->getSwitchLoc());
 177
 178   for (SwitchCase *SC = S->getSwitchCaseList(); SC;
 179        SC = SC->getNextSwitchCase())
 180     Record.push_back(Writer.RecordSwitchCaseID(SC));
 181   Code = serialization::STMT_SWITCH;
 182 }
 183
 184 void ASTStmtWriter::VisitWhileStmt(WhileStmt *S) {
 185   VisitStmt(S);
 186
 187   bool HasVar = S->getConditionVariableDeclStmt() != nullptr;
 188   Record.push_back(HasVar);
 189
 190   Record.AddStmt(S->getCond());
 191   Record.AddStmt(S->getBody());
 192   if (HasVar)
 193     Record.AddDeclRef(S->getConditionVariable());
 194
 195   Record.AddSourceLocation(S->getWhileLoc());
 196   Code = serialization::STMT_WHILE;
 197 }
 198
 199 void ASTStmtWriter::VisitDoStmt(DoStmt *S) {
 200   VisitStmt(S);
 201   Record.AddStmt(S->getCond());
 202   Record.AddStmt(S->getBody());
 203   Record.AddSourceLocation(S->getDoLoc());
 204   Record.AddSourceLocation(S->getWhileLoc());
 205   Record.AddSourceLocation(S->getRParenLoc());
 206   Code = serialization::STMT_DO;
 207 }
 208
 209 void ASTStmtWriter::VisitForStmt(ForStmt *S) {
 210   VisitStmt(S);
 211   Record.AddStmt(S->getInit());
 212   Record.AddStmt(S->getCond());
 213   Record.AddDeclRef(S->getConditionVariable());
 214   Record.AddStmt(S->getInc());
 215   Record.AddStmt(S->getBody());
 216   Record.AddSourceLocation(S->getForLoc());
 217   Record.AddSourceLocation(S->getLParenLoc());
 218   Record.AddSourceLocation(S->getRParenLoc());
 219   Code = serialization::STMT_FOR;
 220 }
 221
 222 void ASTStmtWriter::VisitGotoStmt(GotoStmt *S) {
 223   VisitStmt(S);
 224   Record.AddDeclRef(S->getLabel());
 225   Record.AddSourceLocation(S->getGotoLoc());
 226   Record.AddSourceLocation(S->getLabelLoc());
 227   Code = serialization::STMT_GOTO;
 228 }
 229
 230 void ASTStmtWriter::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
 231   VisitStmt(S);
 232   Record.AddSourceLocation(S->getGotoLoc());
 233   Record.AddSourceLocation(S->getStarLoc());
 234   Record.AddStmt(S->getTarget());
 235   Code = serialization::STMT_INDIRECT_GOTO;
 236 }
 237
 238 void ASTStmtWriter::VisitContinueStmt(ContinueStmt *S) {
 239   VisitStmt(S);
 240   Record.AddSourceLocation(S->getContinueLoc());
 241   Code = serialization::STMT_CONTINUE;
 242 }
 243
 244 void ASTStmtWriter::VisitBreakStmt(BreakStmt *S) {
 245   VisitStmt(S);
 246   Record.AddSourceLocation(S->getBreakLoc());
 247   Code = serialization::STMT_BREAK;
 248 }
 249
 250 void ASTStmtWriter::VisitReturnStmt(ReturnStmt *S) {
 251   VisitStmt(S);
 252
 253   bool HasNRVOCandidate = S->getNRVOCandidate() != nullptr;
 254   Record.push_back(HasNRVOCandidate);
 255
 256   Record.AddStmt(S->getRetValue());
 257   if (HasNRVOCandidate)
 258     Record.AddDeclRef(S->getNRVOCandidate());
 259
 260   Record.AddSourceLocation(S->getReturnLoc());
 261   Code = serialization::STMT_RETURN;
 262 }
 263
 264 void ASTStmtWriter::VisitDeclStmt(DeclStmt *S) {
 265   VisitStmt(S);
 266   Record.AddSourceLocation(S->getBeginLoc());
 267   Record.AddSourceLocation(S->getEndLoc());
 268   DeclGroupRef DG = S->getDeclGroup();
 269   for (DeclGroupRef::iterator D = DG.begin(), DEnd = DG.end(); D != DEnd; ++D)
 270     Record.AddDeclRef(*D);
 271   Code = serialization::STMT_DECL;
 272 }
 273
 274 void ASTStmtWriter::VisitAsmStmt(AsmStmt *S) {
 275   VisitStmt(S);
 276   Record.push_back(S->getNumOutputs());
 277   Record.push_back(S->getNumInputs());
 278   Record.push_back(S->getNumClobbers());
 279   Record.AddSourceLocation(S->getAsmLoc());
 280   Record.push_back(S->isVolatile());
 281   Record.push_back(S->isSimple());
 282 }
 283
 284 void ASTStmtWriter::VisitGCCAsmStmt(GCCAsmStmt *S) {
 285   VisitAsmStmt(S);
 286   Record.AddSourceLocation(S->getRParenLoc());
 287   Record.AddStmt(S->getAsmString());
 288
 289   // Outputs
 290   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
 291     Record.AddIdentifierRef(S->getOutputIdentifier(I));
 292     Record.AddStmt(S->getOutputConstraintLiteral(I));
 293     Record.AddStmt(S->getOutputExpr(I));
 294   }
 295
 296   // Inputs
 297   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
 298     Record.AddIdentifierRef(S->getInputIdentifier(I));
 299     Record.AddStmt(S->getInputConstraintLiteral(I));
 300     Record.AddStmt(S->getInputExpr(I));
 301   }
 302
 303   // Clobbers
 304   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
 305     Record.AddStmt(S->getClobberStringLiteral(I));
 306
 307   Code = serialization::STMT_GCCASM;
 308 }
 309
 310 void ASTStmtWriter::VisitMSAsmStmt(MSAsmStmt *S) {
 311   VisitAsmStmt(S);
 312   Record.AddSourceLocation(S->getLBraceLoc());
 313   Record.AddSourceLocation(S->getEndLoc());
 314   Record.push_back(S->getNumAsmToks());
 315   Record.AddString(S->getAsmString());
 316
 317   // Tokens
 318   for (unsigned I = 0, N = S->getNumAsmToks(); I != N; ++I) {
 319     // FIXME: Move this to ASTRecordWriter?
 320     Writer.AddToken(S->getAsmToks()[I], Record.getRecordData());
 321   }
 322
 323   // Clobbers
 324   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I) {
 325     Record.AddString(S->getClobber(I));
 326   }
 327
 328   // Outputs
 329   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
 330     Record.AddStmt(S->getOutputExpr(I));
 331     Record.AddString(S->getOutputConstraint(I));
 332   }
 333
 334   // Inputs
 335   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
 336     Record.AddStmt(S->getInputExpr(I));
 337     Record.AddString(S->getInputConstraint(I));
 338   }
 339
 340   Code = serialization::STMT_MSASM;
 341 }
 342
 343 void ASTStmtWriter::VisitCoroutineBodyStmt(CoroutineBodyStmt *CoroStmt) {
 344   VisitStmt(CoroStmt);
 345   Record.push_back(CoroStmt->getParamMoves().size());
 346   for (Stmt *S : CoroStmt->children())
 347     Record.AddStmt(S);
 348   Code = serialization::STMT_COROUTINE_BODY;
 349 }
 350
 351 void ASTStmtWriter::VisitCoreturnStmt(CoreturnStmt *S) {
 352   VisitStmt(S);
 353   Record.AddSourceLocation(S->getKeywordLoc());
 354   Record.AddStmt(S->getOperand());
 355   Record.AddStmt(S->getPromiseCall());
 356   Record.push_back(S->isImplicit());
 357   Code = serialization::STMT_CORETURN;
 358 }
 359
 360 void ASTStmtWriter::VisitCoroutineSuspendExpr(CoroutineSuspendExpr *E) {
 361   VisitExpr(E);
 362   Record.AddSourceLocation(E->getKeywordLoc());
 363   for (Stmt *S : E->children())
 364     Record.AddStmt(S);
 365   Record.AddStmt(E->getOpaqueValue());
 366 }
 367
 368 void ASTStmtWriter::VisitCoawaitExpr(CoawaitExpr *E) {
 369   VisitCoroutineSuspendExpr(E);
 370   Record.push_back(E->isImplicit());
 371   Code = serialization::EXPR_COAWAIT;
 372 }
 373
 374 void ASTStmtWriter::VisitCoyieldExpr(CoyieldExpr *E) {
 375   VisitCoroutineSuspendExpr(E);
 376   Code = serialization::EXPR_COYIELD;
 377 }
 378
 379 void ASTStmtWriter::VisitDependentCoawaitExpr(DependentCoawaitExpr *E) {
 380   VisitExpr(E);
 381   Record.AddSourceLocation(E->getKeywordLoc());
 382   for (Stmt *S : E->children())
 383     Record.AddStmt(S);
 384   Code = serialization::EXPR_DEPENDENT_COAWAIT;
 385 }
 386
 387 void ASTStmtWriter::VisitCapturedStmt(CapturedStmt *S) {
 388   VisitStmt(S);
 389   // NumCaptures
 390   Record.push_back(std::distance(S->capture_begin(), S->capture_end()));
 391
 392   // CapturedDecl and captured region kind
 393   Record.AddDeclRef(S->getCapturedDecl());
 394   Record.push_back(S->getCapturedRegionKind());
 395
 396   Record.AddDeclRef(S->getCapturedRecordDecl());
 397
 398   // Capture inits
 399   for (auto *I : S->capture_inits())
 400     Record.AddStmt(I);
 401
 402   // Body
 403   Record.AddStmt(S->getCapturedStmt());
 404
 405   // Captures
 406   for (const auto &I : S->captures()) {
 407     if (I.capturesThis() || I.capturesVariableArrayType())
 408       Record.AddDeclRef(nullptr);
 409     else
 410       Record.AddDeclRef(I.getCapturedVar());
 411     Record.push_back(I.getCaptureKind());
 412     Record.AddSourceLocation(I.getLocation());
 413   }
 414
 415   Code = serialization::STMT_CAPTURED;
 416 }
 417
 418 void ASTStmtWriter::VisitExpr(Expr *E) {
 419   VisitStmt(E);
 420   Record.AddTypeRef(E->getType());
 421   Record.push_back(E->isTypeDependent());
 422   Record.push_back(E->isValueDependent());
 423   Record.push_back(E->isInstantiationDependent());
 424   Record.push_back(E->containsUnexpandedParameterPack());
 425   Record.push_back(E->getValueKind());
 426   Record.push_back(E->getObjectKind());
 427 }
 428
 429 void ASTStmtWriter::VisitConstantExpr(ConstantExpr *E) {
 430   VisitExpr(E);
 431   Record.AddStmt(E->getSubExpr());
 432   Code = serialization::EXPR_CONSTANT;
 433 }
 434
 435 void ASTStmtWriter::VisitPredefinedExpr(PredefinedExpr *E) {
 436   VisitExpr(E);
 437
 438   bool HasFunctionName = E->getFunctionName() != nullptr;
 439   Record.push_back(HasFunctionName);
 440   Record.push_back(E->getIdentKind()); // FIXME: stable encoding
 441   Record.AddSourceLocation(E->getLocation());
 442   if (HasFunctionName)
 443     Record.AddStmt(E->getFunctionName());
 444   Code = serialization::EXPR_PREDEFINED;
 445 }
 446
 447 void ASTStmtWriter::VisitDeclRefExpr(DeclRefExpr *E) {
 448   VisitExpr(E);
 449
 450   Record.push_back(E->hasQualifier());
 451   Record.push_back(E->getDecl() != E->getFoundDecl());
 452   Record.push_back(E->hasTemplateKWAndArgsInfo());
 453   Record.push_back(E->hadMultipleCandidates());
 454   Record.push_back(E->refersToEnclosingVariableOrCapture());
 455
 456   if (E->hasTemplateKWAndArgsInfo()) {
 457     unsigned NumTemplateArgs = E->getNumTemplateArgs();
 458     Record.push_back(NumTemplateArgs);
 459   }
 460
 461   DeclarationName::NameKind nk = (E->getDecl()->getDeclName().getNameKind());
 462
 463   if ((!E->hasTemplateKWAndArgsInfo()) && (!E->hasQualifier()) &&
 464       (E->getDecl() == E->getFoundDecl()) &&
 465       nk == DeclarationName::Identifier) {
 466     AbbrevToUse = Writer.getDeclRefExprAbbrev();
 467   }
 468
 469   if (E->hasQualifier())
 470     Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
 471
 472   if (E->getDecl() != E->getFoundDecl())
 473     Record.AddDeclRef(E->getFoundDecl());
 474
 475   if (E->hasTemplateKWAndArgsInfo())
 476     AddTemplateKWAndArgsInfo(*E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
 477                              E->getTrailingObjects<TemplateArgumentLoc>());
 478
 479   Record.AddDeclRef(E->getDecl());
 480   Record.AddSourceLocation(E->getLocation());
 481   Record.AddDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName());
 482   Code = serialization::EXPR_DECL_REF;
 483 }
 484
 485 void ASTStmtWriter::VisitIntegerLiteral(IntegerLiteral *E) {
 486   VisitExpr(E);
 487   Record.AddSourceLocation(E->getLocation());
 488   Record.AddAPInt(E->getValue());
 489
 490   if (E->getValue().getBitWidth() == 32) {
 491     AbbrevToUse = Writer.getIntegerLiteralAbbrev();
 492   }
 493
 494   Code = serialization::EXPR_INTEGER_LITERAL;
 495 }
 496
 497 void ASTStmtWriter::VisitFixedPointLiteral(FixedPointLiteral *E) {
 498   VisitExpr(E);
 499   Record.AddSourceLocation(E->getLocation());
 500   Record.AddAPInt(E->getValue());
 501   Code = serialization::EXPR_INTEGER_LITERAL;
 502 }
 503
 504 void ASTStmtWriter::VisitFloatingLiteral(FloatingLiteral *E) {
 505   VisitExpr(E);
 506   Record.push_back(E->getRawSemantics());
 507   Record.push_back(E->isExact());
 508   Record.AddAPFloat(E->getValue());
 509   Record.AddSourceLocation(E->getLocation());
 510   Code = serialization::EXPR_FLOATING_LITERAL;
 511 }
 512
 513 void ASTStmtWriter::VisitImaginaryLiteral(ImaginaryLiteral *E) {
 514   VisitExpr(E);
 515   Record.AddStmt(E->getSubExpr());
 516   Code = serialization::EXPR_IMAGINARY_LITERAL;
 517 }
 518
 519 void ASTStmtWriter::VisitStringLiteral(StringLiteral *E) {
 520   VisitExpr(E);
 521
 522   // Store the various bits of data of StringLiteral.
 523   Record.push_back(E->getNumConcatenated());
 524   Record.push_back(E->getLength());
 525   Record.push_back(E->getCharByteWidth());
 526   Record.push_back(E->getKind());
 527   Record.push_back(E->isPascal());
 528
 529   // Store the trailing array of SourceLocation.
 530   for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
 531     Record.AddSourceLocation(E->getStrTokenLoc(I));
 532
 533   // Store the trailing array of char holding the string data.
 534   StringRef StrData = E->getBytes();
 535   for (unsigned I = 0, N = E->getByteLength(); I != N; ++I)
 536     Record.push_back(StrData[I]);
 537
 538   Code = serialization::EXPR_STRING_LITERAL;
 539 }
 540
 541 void ASTStmtWriter::VisitCharacterLiteral(CharacterLiteral *E) {
 542   VisitExpr(E);
 543   Record.push_back(E->getValue());
 544   Record.AddSourceLocation(E->getLocation());
 545   Record.push_back(E->getKind());
 546
 547   AbbrevToUse = Writer.getCharacterLiteralAbbrev();
 548
 549   Code = serialization::EXPR_CHARACTER_LITERAL;
 550 }
 551
 552 void ASTStmtWriter::VisitParenExpr(ParenExpr *E) {
 553   VisitExpr(E);
 554   Record.AddSourceLocation(E->getLParen());
 555   Record.AddSourceLocation(E->getRParen());
 556   Record.AddStmt(E->getSubExpr());
 557   Code = serialization::EXPR_PAREN;
 558 }
 559
 560 void ASTStmtWriter::VisitParenListExpr(ParenListExpr *E) {
 561   VisitExpr(E);
 562   Record.push_back(E->getNumExprs());
 563   for (auto *SubStmt : E->exprs())
 564     Record.AddStmt(SubStmt);
 565   Record.AddSourceLocation(E->getLParenLoc());
 566   Record.AddSourceLocation(E->getRParenLoc());
 567   Code = serialization::EXPR_PAREN_LIST;
 568 }
 569
 570 void ASTStmtWriter::VisitUnaryOperator(UnaryOperator *E) {
 571   VisitExpr(E);
 572   Record.AddStmt(E->getSubExpr());
 573   Record.push_back(E->getOpcode()); // FIXME: stable encoding
 574   Record.AddSourceLocation(E->getOperatorLoc());
 575   Record.push_back(E->canOverflow());
 576   Code = serialization::EXPR_UNARY_OPERATOR;
 577 }
 578
 579 void ASTStmtWriter::VisitOffsetOfExpr(OffsetOfExpr *E) {
 580   VisitExpr(E);
 581   Record.push_back(E->getNumComponents());
 582   Record.push_back(E->getNumExpressions());
 583   Record.AddSourceLocation(E->getOperatorLoc());
 584   Record.AddSourceLocation(E->getRParenLoc());
 585   Record.AddTypeSourceInfo(E->getTypeSourceInfo());
 586   for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
 587     const OffsetOfNode &ON = E->getComponent(I);
 588     Record.push_back(ON.getKind()); // FIXME: Stable encoding
 589     Record.AddSourceLocation(ON.getSourceRange().getBegin());
 590     Record.AddSourceLocation(ON.getSourceRange().getEnd());
 591     switch (ON.getKind()) {
 592     case OffsetOfNode::Array:
 593       Record.push_back(ON.getArrayExprIndex());
 594       break;
 595
 596     case OffsetOfNode::Field:
 597       Record.AddDeclRef(ON.getField());
 598       break;
 599
 600     case OffsetOfNode::Identifier:
 601       Record.AddIdentifierRef(ON.getFieldName());
 602       break;
 603
 604     case OffsetOfNode::Base:
 605       Record.AddCXXBaseSpecifier(*ON.getBase());
 606       break;
 607     }
 608   }
 609   for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
 610     Record.AddStmt(E->getIndexExpr(I));
 611   Code = serialization::EXPR_OFFSETOF;
 612 }
 613
 614 void ASTStmtWriter::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E) {
 615   VisitExpr(E);
 616   Record.push_back(E->getKind());
 617   if (E->isArgumentType())
 618     Record.AddTypeSourceInfo(E->getArgumentTypeInfo());
 619   else {
 620     Record.push_back(0);
 621     Record.AddStmt(E->getArgumentExpr());
 622   }
 623   Record.AddSourceLocation(E->getOperatorLoc());
 624   Record.AddSourceLocation(E->getRParenLoc());
 625   Code = serialization::EXPR_SIZEOF_ALIGN_OF;
 626 }
 627
 628 void ASTStmtWriter::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
 629   VisitExpr(E);
 630   Record.AddStmt(E->getLHS());
 631   Record.AddStmt(E->getRHS());
 632   Record.AddSourceLocation(E->getRBracketLoc());
 633   Code = serialization::EXPR_ARRAY_SUBSCRIPT;
 634 }
 635
 636 void ASTStmtWriter::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
 637   VisitExpr(E);
 638   Record.AddStmt(E->getBase());
 639   Record.AddStmt(E->getLowerBound());
 640   Record.AddStmt(E->getLength());
 641   Record.AddSourceLocation(E->getColonLoc());
 642   Record.AddSourceLocation(E->getRBracketLoc());
 643   Code = serialization::EXPR_OMP_ARRAY_SECTION;
 644 }
 645
 646 void ASTStmtWriter::VisitCallExpr(CallExpr *E) {
 647   VisitExpr(E);
 648   Record.push_back(E->getNumArgs());
 649   Record.AddSourceLocation(E->getRParenLoc());
 650   Record.AddStmt(E->getCallee());
 651   for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
 652        Arg != ArgEnd; ++Arg)
 653     Record.AddStmt(*Arg);
 654   Record.push_back(static_cast<unsigned>(E->getADLCallKind()));
 655   Code = serialization::EXPR_CALL;
 656 }
 657
 658 void ASTStmtWriter::VisitMemberExpr(MemberExpr *E) {
 659   // Don't call VisitExpr, we'll write everything here.
 660
 661   Record.push_back(E->hasQualifier());
 662   if (E->hasQualifier())
 663     Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
 664
 665   Record.push_back(E->hasTemplateKWAndArgsInfo());
 666   if (E->hasTemplateKWAndArgsInfo()) {
 667     Record.AddSourceLocation(E->getTemplateKeywordLoc());
 668     unsigned NumTemplateArgs = E->getNumTemplateArgs();
 669     Record.push_back(NumTemplateArgs);
 670     Record.AddSourceLocation(E->getLAngleLoc());
 671     Record.AddSourceLocation(E->getRAngleLoc());
 672     for (unsigned i=0; i != NumTemplateArgs; ++i)
 673       Record.AddTemplateArgumentLoc(E->getTemplateArgs()[i]);
 674   }
 675
 676   Record.push_back(E->hadMultipleCandidates());
 677
 678   DeclAccessPair FoundDecl = E->getFoundDecl();
 679   Record.AddDeclRef(FoundDecl.getDecl());
 680   Record.push_back(FoundDecl.getAccess());
 681
 682   Record.AddTypeRef(E->getType());
 683   Record.push_back(E->getValueKind());
 684   Record.push_back(E->getObjectKind());
 685   Record.AddStmt(E->getBase());
 686   Record.AddDeclRef(E->getMemberDecl());
 687   Record.AddSourceLocation(E->getMemberLoc());
 688   Record.push_back(E->isArrow());
 689   Record.AddSourceLocation(E->getOperatorLoc());
 690   Record.AddDeclarationNameLoc(E->MemberDNLoc,
 691                                E->getMemberDecl()->getDeclName());
 692   Code = serialization::EXPR_MEMBER;
 693 }
 694
 695 void ASTStmtWriter::VisitObjCIsaExpr(ObjCIsaExpr *E) {
 696   VisitExpr(E);
 697   Record.AddStmt(E->getBase());
 698   Record.AddSourceLocation(E->getIsaMemberLoc());
 699   Record.AddSourceLocation(E->getOpLoc());
 700   Record.push_back(E->isArrow());
 701   Code = serialization::EXPR_OBJC_ISA;
 702 }
 703
 704 void ASTStmtWriter::
 705 VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
 706   VisitExpr(E);
 707   Record.AddStmt(E->getSubExpr());
 708   Record.push_back(E->shouldCopy());
 709   Code = serialization::EXPR_OBJC_INDIRECT_COPY_RESTORE;
 710 }
 711
 712 void ASTStmtWriter::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
 713   VisitExplicitCastExpr(E);
 714   Record.AddSourceLocation(E->getLParenLoc());
 715   Record.AddSourceLocation(E->getBridgeKeywordLoc());
 716   Record.push_back(E->getBridgeKind()); // FIXME: Stable encoding
 717   Code = serialization::EXPR_OBJC_BRIDGED_CAST;
 718 }
 719
 720 void ASTStmtWriter::VisitCastExpr(CastExpr *E) {
 721   VisitExpr(E);
 722   Record.push_back(E->path_size());
 723   Record.AddStmt(E->getSubExpr());
 724   Record.push_back(E->getCastKind()); // FIXME: stable encoding
 725
 726   for (CastExpr::path_iterator
 727          PI = E->path_begin(), PE = E->path_end(); PI != PE; ++PI)
 728     Record.AddCXXBaseSpecifier(**PI);
 729 }
 730
 731 void ASTStmtWriter::VisitBinaryOperator(BinaryOperator *E) {
 732   VisitExpr(E);
 733   Record.AddStmt(E->getLHS());
 734   Record.AddStmt(E->getRHS());
 735   Record.push_back(E->getOpcode()); // FIXME: stable encoding
 736   Record.AddSourceLocation(E->getOperatorLoc());
 737   Record.push_back(E->getFPFeatures().getInt());
 738   Code = serialization::EXPR_BINARY_OPERATOR;
 739 }
 740
 741 void ASTStmtWriter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
 742   VisitBinaryOperator(E);
 743   Record.AddTypeRef(E->getComputationLHSType());
 744   Record.AddTypeRef(E->getComputationResultType());
 745   Code = serialization::EXPR_COMPOUND_ASSIGN_OPERATOR;
 746 }
 747
 748 void ASTStmtWriter::VisitConditionalOperator(ConditionalOperator *E) {
 749   VisitExpr(E);
 750   Record.AddStmt(E->getCond());
 751   Record.AddStmt(E->getLHS());
 752   Record.AddStmt(E->getRHS());
 753   Record.AddSourceLocation(E->getQuestionLoc());
 754   Record.AddSourceLocation(E->getColonLoc());
 755   Code = serialization::EXPR_CONDITIONAL_OPERATOR;
 756 }
 757
 758 void
 759 ASTStmtWriter::VisitBinaryConditionalOperator(BinaryConditionalOperator *E) {
 760   VisitExpr(E);
 761   Record.AddStmt(E->getOpaqueValue());
 762   Record.AddStmt(E->getCommon());
 763   Record.AddStmt(E->getCond());
 764   Record.AddStmt(E->getTrueExpr());
 765   Record.AddStmt(E->getFalseExpr());
 766   Record.AddSourceLocation(E->getQuestionLoc());
 767   Record.AddSourceLocation(E->getColonLoc());
 768   Code = serialization::EXPR_BINARY_CONDITIONAL_OPERATOR;
 769 }
 770
 771 void ASTStmtWriter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
 772   VisitCastExpr(E);
 773   Record.push_back(E->isPartOfExplicitCast());
 774
 775   if (E->path_size() == 0)
 776     AbbrevToUse = Writer.getExprImplicitCastAbbrev();
 777
 778   Code = serialization::EXPR_IMPLICIT_CAST;
 779 }
 780
 781 void ASTStmtWriter::VisitExplicitCastExpr(ExplicitCastExpr *E) {
 782   VisitCastExpr(E);
 783   Record.AddTypeSourceInfo(E->getTypeInfoAsWritten());
 784 }
 785
 786 void ASTStmtWriter::VisitCStyleCastExpr(CStyleCastExpr *E) {
 787   VisitExplicitCastExpr(E);
 788   Record.AddSourceLocation(E->getLParenLoc());
 789   Record.AddSourceLocation(E->getRParenLoc());
 790   Code = serialization::EXPR_CSTYLE_CAST;
 791 }
 792
 793 void ASTStmtWriter::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
 794   VisitExpr(E);
 795   Record.AddSourceLocation(E->getLParenLoc());
 796   Record.AddTypeSourceInfo(E->getTypeSourceInfo());
 797   Record.AddStmt(E->getInitializer());
 798   Record.push_back(E->isFileScope());
 799   Code = serialization::EXPR_COMPOUND_LITERAL;
 800 }
 801
 802 void ASTStmtWriter::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
 803   VisitExpr(E);
 804   Record.AddStmt(E->getBase());
 805   Record.AddIdentifierRef(&E->getAccessor());
 806   Record.AddSourceLocation(E->getAccessorLoc());
 807   Code = serialization::EXPR_EXT_VECTOR_ELEMENT;
 808 }
 809
 810 void ASTStmtWriter::VisitInitListExpr(InitListExpr *E) {
 811   VisitExpr(E);
 812   // NOTE: only add the (possibly null) syntactic form.
 813   // No need to serialize the isSemanticForm flag and the semantic form.
 814   Record.AddStmt(E->getSyntacticForm());
 815   Record.AddSourceLocation(E->getLBraceLoc());
 816   Record.AddSourceLocation(E->getRBraceLoc());
 817   bool isArrayFiller = E->ArrayFillerOrUnionFieldInit.is<Expr*>();
 818   Record.push_back(isArrayFiller);
 819   if (isArrayFiller)
 820     Record.AddStmt(E->getArrayFiller());
 821   else
 822     Record.AddDeclRef(E->getInitializedFieldInUnion());
 823   Record.push_back(E->hadArrayRangeDesignator());
 824   Record.push_back(E->getNumInits());
 825   if (isArrayFiller) {
 826     // ArrayFiller may have filled "holes" due to designated initializer.
 827     // Replace them by 0 to indicate that the filler goes in that place.
 828     Expr *filler = E->getArrayFiller();
 829     for (unsigned I = 0, N = E->getNumInits(); I != N; ++I)
 830       Record.AddStmt(E->getInit(I) != filler ? E->getInit(I) : nullptr);
 831   } else {
 832     for (unsigned I = 0, N = E->getNumInits(); I != N; ++I)
 833       Record.AddStmt(E->getInit(I));
 834   }
 835   Code = serialization::EXPR_INIT_LIST;
 836 }
 837
 838 void ASTStmtWriter::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
 839   VisitExpr(E);
 840   Record.push_back(E->getNumSubExprs());
 841   for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
 842     Record.AddStmt(E->getSubExpr(I));
 843   Record.AddSourceLocation(E->getEqualOrColonLoc());
 844   Record.push_back(E->usesGNUSyntax());
 845   for (const DesignatedInitExpr::Designator &D : E->designators()) {
 846     if (D.isFieldDesignator()) {
 847       if (FieldDecl *Field = D.getField()) {
 848         Record.push_back(serialization::DESIG_FIELD_DECL);
 849         Record.AddDeclRef(Field);
 850       } else {
 851         Record.push_back(serialization::DESIG_FIELD_NAME);
 852         Record.AddIdentifierRef(D.getFieldName());
 853       }
 854       Record.AddSourceLocation(D.getDotLoc());
 855       Record.AddSourceLocation(D.getFieldLoc());
 856     } else if (D.isArrayDesignator()) {
 857       Record.push_back(serialization::DESIG_ARRAY);
 858       Record.push_back(D.getFirstExprIndex());
 859       Record.AddSourceLocation(D.getLBracketLoc());
 860       Record.AddSourceLocation(D.getRBracketLoc());
 861     } else {
 862       assert(D.isArrayRangeDesignator() && "Unknown designator");
 863       Record.push_back(serialization::DESIG_ARRAY_RANGE);
 864       Record.push_back(D.getFirstExprIndex());
 865       Record.AddSourceLocation(D.getLBracketLoc());
 866       Record.AddSourceLocation(D.getEllipsisLoc());
 867       Record.AddSourceLocation(D.getRBracketLoc());
 868     }
 869   }
 870   Code = serialization::EXPR_DESIGNATED_INIT;
 871 }
 872
 873 void ASTStmtWriter::VisitDesignatedInitUpdateExpr(DesignatedInitUpdateExpr *E) {
 874   VisitExpr(E);
 875   Record.AddStmt(E->getBase());
 876   Record.AddStmt(E->getUpdater());
 877   Code = serialization::EXPR_DESIGNATED_INIT_UPDATE;
 878 }
 879
 880 void ASTStmtWriter::VisitNoInitExpr(NoInitExpr *E) {
 881   VisitExpr(E);
 882   Code = serialization::EXPR_NO_INIT;
 883 }
 884
 885 void ASTStmtWriter::VisitArrayInitLoopExpr(ArrayInitLoopExpr *E) {
 886   VisitExpr(E);
 887   Record.AddStmt(E->SubExprs[0]);
 888   Record.AddStmt(E->SubExprs[1]);
 889   Code = serialization::EXPR_ARRAY_INIT_LOOP;
 890 }
 891
 892 void ASTStmtWriter::VisitArrayInitIndexExpr(ArrayInitIndexExpr *E) {
 893   VisitExpr(E);
 894   Code = serialization::EXPR_ARRAY_INIT_INDEX;
 895 }
 896
 897 void ASTStmtWriter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
 898   VisitExpr(E);
 899   Code = serialization::EXPR_IMPLICIT_VALUE_INIT;
 900 }
 901
 902 void ASTStmtWriter::VisitVAArgExpr(VAArgExpr *E) {
 903   VisitExpr(E);
 904   Record.AddStmt(E->getSubExpr());
 905   Record.AddTypeSourceInfo(E->getWrittenTypeInfo());
 906   Record.AddSourceLocation(E->getBuiltinLoc());
 907   Record.AddSourceLocation(E->getRParenLoc());
 908   Record.push_back(E->isMicrosoftABI());
 909   Code = serialization::EXPR_VA_ARG;
 910 }
 911
 912 void ASTStmtWriter::VisitAddrLabelExpr(AddrLabelExpr *E) {
 913   VisitExpr(E);
 914   Record.AddSourceLocation(E->getAmpAmpLoc());
 915   Record.AddSourceLocation(E->getLabelLoc());
 916   Record.AddDeclRef(E->getLabel());
 917   Code = serialization::EXPR_ADDR_LABEL;
 918 }
 919
 920 void ASTStmtWriter::VisitStmtExpr(StmtExpr *E) {
 921   VisitExpr(E);
 922   Record.AddStmt(E->getSubStmt());
 923   Record.AddSourceLocation(E->getLParenLoc());
 924   Record.AddSourceLocation(E->getRParenLoc());
 925   Code = serialization::EXPR_STMT;
 926 }
 927
 928 void ASTStmtWriter::VisitChooseExpr(ChooseExpr *E) {
 929   VisitExpr(E);
 930   Record.AddStmt(E->getCond());
 931   Record.AddStmt(E->getLHS());
 932   Record.AddStmt(E->getRHS());
 933   Record.AddSourceLocation(E->getBuiltinLoc());
 934   Record.AddSourceLocation(E->getRParenLoc());
 935   Record.push_back(E->isConditionDependent() ? false : E->isConditionTrue());
 936   Code = serialization::EXPR_CHOOSE;
 937 }
 938
 939 void ASTStmtWriter::VisitGNUNullExpr(GNUNullExpr *E) {
 940   VisitExpr(E);
 941   Record.AddSourceLocation(E->getTokenLocation());
 942   Code = serialization::EXPR_GNU_NULL;
 943 }
 944
 945 void ASTStmtWriter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
 946   VisitExpr(E);
 947   Record.push_back(E->getNumSubExprs());
 948   for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
 949     Record.AddStmt(E->getExpr(I));
 950   Record.AddSourceLocation(E->getBuiltinLoc());
 951   Record.AddSourceLocation(E->getRParenLoc());
 952   Code = serialization::EXPR_SHUFFLE_VECTOR;
 953 }
 954
 955 void ASTStmtWriter::VisitConvertVectorExpr(ConvertVectorExpr *E) {
 956   VisitExpr(E);
 957   Record.AddSourceLocation(E->getBuiltinLoc());
 958   Record.AddSourceLocation(E->getRParenLoc());
 959   Record.AddTypeSourceInfo(E->getTypeSourceInfo());
 960   Record.AddStmt(E->getSrcExpr());
 961   Code = serialization::EXPR_CONVERT_VECTOR;
 962 }
 963
 964 void ASTStmtWriter::VisitBlockExpr(BlockExpr *E) {
 965   VisitExpr(E);
 966   Record.AddDeclRef(E->getBlockDecl());
 967   Code = serialization::EXPR_BLOCK;
 968 }
 969
 970 void ASTStmtWriter::VisitGenericSelectionExpr(GenericSelectionExpr *E) {
 971   VisitExpr(E);
 972   Record.push_back(E->getNumAssocs());
 973
 974   Record.AddStmt(E->getControllingExpr());
 975   for (unsigned I = 0, N = E->getNumAssocs(); I != N; ++I) {
 976     Record.AddTypeSourceInfo(E->getAssocTypeSourceInfo(I));
 977     Record.AddStmt(E->getAssocExpr(I));
 978   }
 979   Record.push_back(E->isResultDependent() ? -1U : E->getResultIndex());
 980
 981   Record.AddSourceLocation(E->getGenericLoc());
 982   Record.AddSourceLocation(E->getDefaultLoc());
 983   Record.AddSourceLocation(E->getRParenLoc());
 984   Code = serialization::EXPR_GENERIC_SELECTION;
 985 }
 986
 987 void ASTStmtWriter::VisitPseudoObjectExpr(PseudoObjectExpr *E) {
 988   VisitExpr(E);
 989   Record.push_back(E->getNumSemanticExprs());
 990
 991   // Push the result index.  Currently, this needs to exactly match
 992   // the encoding used internally for ResultIndex.
 993   unsigned result = E->getResultExprIndex();
 994   result = (result == PseudoObjectExpr::NoResult ? 0 : result + 1);
 995   Record.push_back(result);
 996
 997   Record.AddStmt(E->getSyntacticForm());
 998   for (PseudoObjectExpr::semantics_iterator
 999          i = E->semantics_begin(), e = E->semantics_end(); i != e; ++i) {
1000     Record.AddStmt(*i);
1001   }
1002   Code = serialization::EXPR_PSEUDO_OBJECT;
1003 }
1004
1005 void ASTStmtWriter::VisitAtomicExpr(AtomicExpr *E) {
1006   VisitExpr(E);
1007   Record.push_back(E->getOp());
1008   for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
1009     Record.AddStmt(E->getSubExprs()[I]);
1010   Record.AddSourceLocation(E->getBuiltinLoc());
1011   Record.AddSourceLocation(E->getRParenLoc());
1012   Code = serialization::EXPR_ATOMIC;
1013 }
1014
1015 //===----------------------------------------------------------------------===//
1016 // Objective-C Expressions and Statements.
1017 //===----------------------------------------------------------------------===//
1018
1019 void ASTStmtWriter::VisitObjCStringLiteral(ObjCStringLiteral *E) {
1020   VisitExpr(E);
1021   Record.AddStmt(E->getString());
1022   Record.AddSourceLocation(E->getAtLoc());
1023   Code = serialization::EXPR_OBJC_STRING_LITERAL;
1024 }
1025
1026 void ASTStmtWriter::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
1027   VisitExpr(E);
1028   Record.AddStmt(E->getSubExpr());
1029   Record.AddDeclRef(E->getBoxingMethod());
1030   Record.AddSourceRange(E->getSourceRange());
1031   Code = serialization::EXPR_OBJC_BOXED_EXPRESSION;
1032 }
1033
1034 void ASTStmtWriter::VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
1035   VisitExpr(E);
1036   Record.push_back(E->getNumElements());
1037   for (unsigned i = 0; i < E->getNumElements(); i++)
1038     Record.AddStmt(E->getElement(i));
1039   Record.AddDeclRef(E->getArrayWithObjectsMethod());
1040   Record.AddSourceRange(E->getSourceRange());
1041   Code = serialization::EXPR_OBJC_ARRAY_LITERAL;
1042 }
1043
1044 void ASTStmtWriter::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
1045   VisitExpr(E);
1046   Record.push_back(E->getNumElements());
1047   Record.push_back(E->HasPackExpansions);
1048   for (unsigned i = 0; i < E->getNumElements(); i++) {
1049     ObjCDictionaryElement Element = E->getKeyValueElement(i);
1050     Record.AddStmt(Element.Key);
1051     Record.AddStmt(Element.Value);
1052     if (E->HasPackExpansions) {
1053       Record.AddSourceLocation(Element.EllipsisLoc);
1054       unsigned NumExpansions = 0;
1055       if (Element.NumExpansions)
1056         NumExpansions = *Element.NumExpansions + 1;
1057       Record.push_back(NumExpansions);
1058     }
1059   }
1060
1061   Record.AddDeclRef(E->getDictWithObjectsMethod());
1062   Record.AddSourceRange(E->getSourceRange());
1063   Code = serialization::EXPR_OBJC_DICTIONARY_LITERAL;
1064 }
1065
1066 void ASTStmtWriter::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
1067   VisitExpr(E);
1068   Record.AddTypeSourceInfo(E->getEncodedTypeSourceInfo());
1069   Record.AddSourceLocation(E->getAtLoc());
1070   Record.AddSourceLocation(E->getRParenLoc());
1071   Code = serialization::EXPR_OBJC_ENCODE;
1072 }
1073
1074 void ASTStmtWriter::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
1075   VisitExpr(E);
1076   Record.AddSelectorRef(E->getSelector());
1077   Record.AddSourceLocation(E->getAtLoc());
1078   Record.AddSourceLocation(E->getRParenLoc());
1079   Code = serialization::EXPR_OBJC_SELECTOR_EXPR;
1080 }
1081
1082 void ASTStmtWriter::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
1083   VisitExpr(E);
1084   Record.AddDeclRef(E->getProtocol());
1085   Record.AddSourceLocation(E->getAtLoc());
1086   Record.AddSourceLocation(E->ProtoLoc);
1087   Record.AddSourceLocation(E->getRParenLoc());
1088   Code = serialization::EXPR_OBJC_PROTOCOL_EXPR;
1089 }
1090
1091 void ASTStmtWriter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
1092   VisitExpr(E);
1093   Record.AddDeclRef(E->getDecl());
1094   Record.AddSourceLocation(E->getLocation());
1095   Record.AddSourceLocation(E->getOpLoc());
1096   Record.AddStmt(E->getBase());
1097   Record.push_back(E->isArrow());
1098   Record.push_back(E->isFreeIvar());
1099   Code = serialization::EXPR_OBJC_IVAR_REF_EXPR;
1100 }
1101
1102 void ASTStmtWriter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
1103   VisitExpr(E);
1104   Record.push_back(E->SetterAndMethodRefFlags.getInt());
1105   Record.push_back(E->isImplicitProperty());
1106   if (E->isImplicitProperty()) {
1107     Record.AddDeclRef(E->getImplicitPropertyGetter());
1108     Record.AddDeclRef(E->getImplicitPropertySetter());
1109   } else {
1110     Record.AddDeclRef(E->getExplicitProperty());
1111   }
1112   Record.AddSourceLocation(E->getLocation());
1113   Record.AddSourceLocation(E->getReceiverLocation());
1114   if (E->isObjectReceiver()) {
1115     Record.push_back(0);
1116     Record.AddStmt(E->getBase());
1117   } else if (E->isSuperReceiver()) {
1118     Record.push_back(1);
1119     Record.AddTypeRef(E->getSuperReceiverType());
1120   } else {
1121     Record.push_back(2);
1122     Record.AddDeclRef(E->getClassReceiver());
1123   }
1124
1125   Code = serialization::EXPR_OBJC_PROPERTY_REF_EXPR;
1126 }
1127
1128 void ASTStmtWriter::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
1129   VisitExpr(E);
1130   Record.AddSourceLocation(E->getRBracket());
1131   Record.AddStmt(E->getBaseExpr());
1132   Record.AddStmt(E->getKeyExpr());
1133   Record.AddDeclRef(E->getAtIndexMethodDecl());
1134   Record.AddDeclRef(E->setAtIndexMethodDecl());
1135
1136   Code = serialization::EXPR_OBJC_SUBSCRIPT_REF_EXPR;
1137 }
1138
1139 void ASTStmtWriter::VisitObjCMessageExpr(ObjCMessageExpr *E) {
1140   VisitExpr(E);
1141   Record.push_back(E->getNumArgs());
1142   Record.push_back(E->getNumStoredSelLocs());
1143   Record.push_back(E->SelLocsKind);
1144   Record.push_back(E->isDelegateInitCall());
1145   Record.push_back(E->IsImplicit);
1146   Record.push_back((unsigned)E->getReceiverKind()); // FIXME: stable encoding
1147   switch (E->getReceiverKind()) {
1148   case ObjCMessageExpr::Instance:
1149     Record.AddStmt(E->getInstanceReceiver());
1150     break;
1151
1152   case ObjCMessageExpr::Class:
1153     Record.AddTypeSourceInfo(E->getClassReceiverTypeInfo());
1154     break;
1155
1156   case ObjCMessageExpr::SuperClass:
1157   case ObjCMessageExpr::SuperInstance:
1158     Record.AddTypeRef(E->getSuperType());
1159     Record.AddSourceLocation(E->getSuperLoc());
1160     break;
1161   }
1162
1163   if (E->getMethodDecl()) {
1164     Record.push_back(1);
1165     Record.AddDeclRef(E->getMethodDecl());
1166   } else {
1167     Record.push_back(0);
1168     Record.AddSelectorRef(E->getSelector());
1169   }
1170
1171   Record.AddSourceLocation(E->getLeftLoc());
1172   Record.AddSourceLocation(E->getRightLoc());
1173
1174   for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
1175        Arg != ArgEnd; ++Arg)
1176     Record.AddStmt(*Arg);
1177
1178   SourceLocation *Locs = E->getStoredSelLocs();
1179   for (unsigned i = 0, e = E->getNumStoredSelLocs(); i != e; ++i)
1180     Record.AddSourceLocation(Locs[i]);
1181
1182   Code = serialization::EXPR_OBJC_MESSAGE_EXPR;
1183 }
1184
1185 void ASTStmtWriter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
1186   VisitStmt(S);
1187   Record.AddStmt(S->getElement());
1188   Record.AddStmt(S->getCollection());
1189   Record.AddStmt(S->getBody());
1190   Record.AddSourceLocation(S->getForLoc());
1191   Record.AddSourceLocation(S->getRParenLoc());
1192   Code = serialization::STMT_OBJC_FOR_COLLECTION;
1193 }
1194
1195 void ASTStmtWriter::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
1196   Record.AddStmt(S->getCatchBody());
1197   Record.AddDeclRef(S->getCatchParamDecl());
1198   Record.AddSourceLocation(S->getAtCatchLoc());
1199   Record.AddSourceLocation(S->getRParenLoc());
1200   Code = serialization::STMT_OBJC_CATCH;
1201 }
1202
1203 void ASTStmtWriter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
1204   Record.AddStmt(S->getFinallyBody());
1205   Record.AddSourceLocation(S->getAtFinallyLoc());
1206   Code = serialization::STMT_OBJC_FINALLY;
1207 }
1208
1209 void ASTStmtWriter::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S) {
1210   Record.AddStmt(S->getSubStmt());
1211   Record.AddSourceLocation(S->getAtLoc());
1212   Code = serialization::STMT_OBJC_AUTORELEASE_POOL;
1213 }
1214
1215 void ASTStmtWriter::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
1216   Record.push_back(S->getNumCatchStmts());
1217   Record.push_back(S->getFinallyStmt() != nullptr);
1218   Record.AddStmt(S->getTryBody());
1219   for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
1220     Record.AddStmt(S->getCatchStmt(I));
1221   if (S->getFinallyStmt())
1222     Record.AddStmt(S->getFinallyStmt());
1223   Record.AddSourceLocation(S->getAtTryLoc());
1224   Code = serialization::STMT_OBJC_AT_TRY;
1225 }
1226
1227 void ASTStmtWriter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
1228   Record.AddStmt(S->getSynchExpr());
1229   Record.AddStmt(S->getSynchBody());
1230   Record.AddSourceLocation(S->getAtSynchronizedLoc());
1231   Code = serialization::STMT_OBJC_AT_SYNCHRONIZED;
1232 }
1233
1234 void ASTStmtWriter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
1235   Record.AddStmt(S->getThrowExpr());
1236   Record.AddSourceLocation(S->getThrowLoc());
1237   Code = serialization::STMT_OBJC_AT_THROW;
1238 }
1239
1240 void ASTStmtWriter::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
1241   VisitExpr(E);
1242   Record.push_back(E->getValue());
1243   Record.AddSourceLocation(E->getLocation());
1244   Code = serialization::EXPR_OBJC_BOOL_LITERAL;
1245 }
1246
1247 void ASTStmtWriter::VisitObjCAvailabilityCheckExpr(ObjCAvailabilityCheckExpr *E) {
1248   VisitExpr(E);
1249   Record.AddSourceRange(E->getSourceRange());
1250   Record.AddVersionTuple(E->getVersion());
1251   Code = serialization::EXPR_OBJC_AVAILABILITY_CHECK;
1252 }
1253
1254 //===----------------------------------------------------------------------===//
1255 // C++ Expressions and Statements.
1256 //===----------------------------------------------------------------------===//
1257
1258 void ASTStmtWriter::VisitCXXCatchStmt(CXXCatchStmt *S) {
1259   VisitStmt(S);
1260   Record.AddSourceLocation(S->getCatchLoc());
1261   Record.AddDeclRef(S->getExceptionDecl());
1262   Record.AddStmt(S->getHandlerBlock());
1263   Code = serialization::STMT_CXX_CATCH;
1264 }
1265
1266 void ASTStmtWriter::VisitCXXTryStmt(CXXTryStmt *S) {
1267   VisitStmt(S);
1268   Record.push_back(S->getNumHandlers());
1269   Record.AddSourceLocation(S->getTryLoc());
1270   Record.AddStmt(S->getTryBlock());
1271   for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
1272     Record.AddStmt(S->getHandler(i));
1273   Code = serialization::STMT_CXX_TRY;
1274 }
1275
1276 void ASTStmtWriter::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
1277   VisitStmt(S);
1278   Record.AddSourceLocation(S->getForLoc());
1279   Record.AddSourceLocation(S->getCoawaitLoc());
1280   Record.AddSourceLocation(S->getColonLoc());
1281   Record.AddSourceLocation(S->getRParenLoc());
1282   Record.AddStmt(S->getInit());
1283   Record.AddStmt(S->getRangeStmt());
1284   Record.AddStmt(S->getBeginStmt());
1285   Record.AddStmt(S->getEndStmt());
1286   Record.AddStmt(S->getCond());
1287   Record.AddStmt(S->getInc());
1288   Record.AddStmt(S->getLoopVarStmt());
1289   Record.AddStmt(S->getBody());
1290   Code = serialization::STMT_CXX_FOR_RANGE;
1291 }
1292
1293 void ASTStmtWriter::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1294   VisitStmt(S);
1295   Record.AddSourceLocation(S->getKeywordLoc());
1296   Record.push_back(S->isIfExists());
1297   Record.AddNestedNameSpecifierLoc(S->getQualifierLoc());
1298   Record.AddDeclarationNameInfo(S->getNameInfo());
1299   Record.AddStmt(S->getSubStmt());
1300   Code = serialization::STMT_MS_DEPENDENT_EXISTS;
1301 }
1302
1303 void ASTStmtWriter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1304   VisitCallExpr(E);
1305   Record.push_back(E->getOperator());
1306   Record.push_back(E->getFPFeatures().getInt());
1307   Record.AddSourceRange(E->Range);
1308   Code = serialization::EXPR_CXX_OPERATOR_CALL;
1309 }
1310
1311 void ASTStmtWriter::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
1312   VisitCallExpr(E);
1313   Code = serialization::EXPR_CXX_MEMBER_CALL;
1314 }
1315
1316 void ASTStmtWriter::VisitCXXConstructExpr(CXXConstructExpr *E) {
1317   VisitExpr(E);
1318
1319   Record.push_back(E->getNumArgs());
1320   Record.push_back(E->isElidable());
1321   Record.push_back(E->hadMultipleCandidates());
1322   Record.push_back(E->isListInitialization());
1323   Record.push_back(E->isStdInitListInitialization());
1324   Record.push_back(E->requiresZeroInitialization());
1325   Record.push_back(E->getConstructionKind()); // FIXME: stable encoding
1326   Record.AddSourceLocation(E->getLocation());
1327   Record.AddDeclRef(E->getConstructor());
1328   Record.AddSourceRange(E->getParenOrBraceRange());
1329
1330   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1331     Record.AddStmt(E->getArg(I));
1332
1333   Code = serialization::EXPR_CXX_CONSTRUCT;
1334 }
1335
1336 void ASTStmtWriter::VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E) {
1337   VisitExpr(E);
1338   Record.AddDeclRef(E->getConstructor());
1339   Record.AddSourceLocation(E->getLocation());
1340   Record.push_back(E->constructsVBase());
1341   Record.push_back(E->inheritedFromVBase());
1342   Code = serialization::EXPR_CXX_INHERITED_CTOR_INIT;
1343 }
1344
1345 void ASTStmtWriter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1346   VisitCXXConstructExpr(E);
1347   Record.AddTypeSourceInfo(E->getTypeSourceInfo());
1348   Code = serialization::EXPR_CXX_TEMPORARY_OBJECT;
1349 }
1350
1351 void ASTStmtWriter::VisitLambdaExpr(LambdaExpr *E) {
1352   VisitExpr(E);
1353   Record.push_back(E->NumCaptures);
1354   Record.AddSourceRange(E->IntroducerRange);
1355   Record.push_back(E->CaptureDefault); // FIXME: stable encoding
1356   Record.AddSourceLocation(E->CaptureDefaultLoc);
1357   Record.push_back(E->ExplicitParams);
1358   Record.push_back(E->ExplicitResultType);
1359   Record.AddSourceLocation(E->ClosingBrace);
1360
1361   // Add capture initializers.
1362   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1363                                       CEnd = E->capture_init_end();
1364        C != CEnd; ++C) {
1365     Record.AddStmt(*C);
1366   }
1367
1368   Code = serialization::EXPR_LAMBDA;
1369 }
1370
1371 void ASTStmtWriter::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1372   VisitExpr(E);
1373   Record.AddStmt(E->getSubExpr());
1374   Code = serialization::EXPR_CXX_STD_INITIALIZER_LIST;
1375 }
1376
1377 void ASTStmtWriter::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1378   VisitExplicitCastExpr(E);
1379   Record.AddSourceRange(SourceRange(E->getOperatorLoc(), E->getRParenLoc()));
1380   Record.AddSourceRange(E->getAngleBrackets());
1381 }
1382
1383 void ASTStmtWriter::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1384   VisitCXXNamedCastExpr(E);
1385   Code = serialization::EXPR_CXX_STATIC_CAST;
1386 }
1387
1388 void ASTStmtWriter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1389   VisitCXXNamedCastExpr(E);
1390   Code = serialization::EXPR_CXX_DYNAMIC_CAST;
1391 }
1392
1393 void ASTStmtWriter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1394   VisitCXXNamedCastExpr(E);
1395   Code = serialization::EXPR_CXX_REINTERPRET_CAST;
1396 }
1397
1398 void ASTStmtWriter::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1399   VisitCXXNamedCastExpr(E);
1400   Code = serialization::EXPR_CXX_CONST_CAST;
1401 }
1402
1403 void ASTStmtWriter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1404   VisitExplicitCastExpr(E);
1405   Record.AddSourceLocation(E->getLParenLoc());
1406   Record.AddSourceLocation(E->getRParenLoc());
1407   Code = serialization::EXPR_CXX_FUNCTIONAL_CAST;
1408 }
1409
1410 void ASTStmtWriter::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1411   VisitCallExpr(E);
1412   Record.AddSourceLocation(E->UDSuffixLoc);
1413   Code = serialization::EXPR_USER_DEFINED_LITERAL;
1414 }
1415
1416 void ASTStmtWriter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1417   VisitExpr(E);
1418   Record.push_back(E->getValue());
1419   Record.AddSourceLocation(E->getLocation());
1420   Code = serialization::EXPR_CXX_BOOL_LITERAL;
1421 }
1422
1423 void ASTStmtWriter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1424   VisitExpr(E);
1425   Record.AddSourceLocation(E->getLocation());
1426   Code = serialization::EXPR_CXX_NULL_PTR_LITERAL;
1427 }
1428
1429 void ASTStmtWriter::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1430   VisitExpr(E);
1431   Record.AddSourceRange(E->getSourceRange());
1432   if (E->isTypeOperand()) {
1433     Record.AddTypeSourceInfo(E->getTypeOperandSourceInfo());
1434     Code = serialization::EXPR_CXX_TYPEID_TYPE;
1435   } else {
1436     Record.AddStmt(E->getExprOperand());
1437     Code = serialization::EXPR_CXX_TYPEID_EXPR;
1438   }
1439 }
1440
1441 void ASTStmtWriter::VisitCXXThisExpr(CXXThisExpr *E) {
1442   VisitExpr(E);
1443   Record.AddSourceLocation(E->getLocation());
1444   Record.push_back(E->isImplicit());
1445   Code = serialization::EXPR_CXX_THIS;
1446 }
1447
1448 void ASTStmtWriter::VisitCXXThrowExpr(CXXThrowExpr *E) {
1449   VisitExpr(E);
1450   Record.AddSourceLocation(E->getThrowLoc());
1451   Record.AddStmt(E->getSubExpr());
1452   Record.push_back(E->isThrownVariableInScope());
1453   Code = serialization::EXPR_CXX_THROW;
1454 }
1455
1456 void ASTStmtWriter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1457   VisitExpr(E);
1458   Record.AddDeclRef(E->getParam());
1459   Record.AddSourceLocation(E->getUsedLocation());
1460   Code = serialization::EXPR_CXX_DEFAULT_ARG;
1461 }
1462
1463 void ASTStmtWriter::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1464   VisitExpr(E);
1465   Record.AddDeclRef(E->getField());
1466   Record.AddSourceLocation(E->getExprLoc());
1467   Code = serialization::EXPR_CXX_DEFAULT_INIT;
1468 }
1469
1470 void ASTStmtWriter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1471   VisitExpr(E);
1472   Record.AddCXXTemporary(E->getTemporary());
1473   Record.AddStmt(E->getSubExpr());
1474   Code = serialization::EXPR_CXX_BIND_TEMPORARY;
1475 }
1476
1477 void ASTStmtWriter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1478   VisitExpr(E);
1479   Record.AddTypeSourceInfo(E->getTypeSourceInfo());
1480   Record.AddSourceLocation(E->getRParenLoc());
1481   Code = serialization::EXPR_CXX_SCALAR_VALUE_INIT;
1482 }
1483
1484 void ASTStmtWriter::VisitCXXNewExpr(CXXNewExpr *E) {
1485   VisitExpr(E);
1486
1487   Record.push_back(E->isArray());
1488   Record.push_back(E->hasInitializer());
1489   Record.push_back(E->getNumPlacementArgs());
1490   Record.push_back(E->isParenTypeId());
1491
1492   Record.push_back(E->isGlobalNew());
1493   Record.push_back(E->passAlignment());
1494   Record.push_back(E->doesUsualArrayDeleteWantSize());
1495   Record.push_back(E->CXXNewExprBits.StoredInitializationStyle);
1496
1497   Record.AddDeclRef(E->getOperatorNew());
1498   Record.AddDeclRef(E->getOperatorDelete());
1499   Record.AddTypeSourceInfo(E->getAllocatedTypeSourceInfo());
1500   if (E->isParenTypeId())
1501     Record.AddSourceRange(E->getTypeIdParens());
1502   Record.AddSourceRange(E->getSourceRange());
1503   Record.AddSourceRange(E->getDirectInitRange());
1504
1505   for (CXXNewExpr::arg_iterator I = E->raw_arg_begin(), N = E->raw_arg_end();
1506        I != N; ++I)
1507     Record.AddStmt(*I);
1508
1509   Code = serialization::EXPR_CXX_NEW;
1510 }
1511
1512 void ASTStmtWriter::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1513   VisitExpr(E);
1514   Record.push_back(E->isGlobalDelete());
1515   Record.push_back(E->isArrayForm());
1516   Record.push_back(E->isArrayFormAsWritten());
1517   Record.push_back(E->doesUsualArrayDeleteWantSize());
1518   Record.AddDeclRef(E->getOperatorDelete());
1519   Record.AddStmt(E->getArgument());
1520   Record.AddSourceLocation(E->getBeginLoc());
1521
1522   Code = serialization::EXPR_CXX_DELETE;
1523 }
1524
1525 void ASTStmtWriter::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1526   VisitExpr(E);
1527
1528   Record.AddStmt(E->getBase());
1529   Record.push_back(E->isArrow());
1530   Record.AddSourceLocation(E->getOperatorLoc());
1531   Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
1532   Record.AddTypeSourceInfo(E->getScopeTypeInfo());
1533   Record.AddSourceLocation(E->getColonColonLoc());
1534   Record.AddSourceLocation(E->getTildeLoc());
1535
1536   // PseudoDestructorTypeStorage.
1537   Record.AddIdentifierRef(E->getDestroyedTypeIdentifier());
1538   if (E->getDestroyedTypeIdentifier())
1539     Record.AddSourceLocation(E->getDestroyedTypeLoc());
1540   else
1541     Record.AddTypeSourceInfo(E->getDestroyedTypeInfo());
1542
1543   Code = serialization::EXPR_CXX_PSEUDO_DESTRUCTOR;
1544 }
1545
1546 void ASTStmtWriter::VisitExprWithCleanups(ExprWithCleanups *E) {
1547   VisitExpr(E);
1548   Record.push_back(E->getNumObjects());
1549   for (unsigned i = 0, e = E->getNumObjects(); i != e; ++i)
1550     Record.AddDeclRef(E->getObject(i));
1551
1552   Record.push_back(E->cleanupsHaveSideEffects());
1553   Record.AddStmt(E->getSubExpr());
1554   Code = serialization::EXPR_EXPR_WITH_CLEANUPS;
1555 }
1556
1557 void ASTStmtWriter::VisitCXXDependentScopeMemberExpr(
1558     CXXDependentScopeMemberExpr *E) {
1559   VisitExpr(E);
1560
1561   // Don't emit anything here (or if you do you will have to update
1562   // the corresponding deserialization function).
1563
1564   Record.push_back(E->hasTemplateKWAndArgsInfo());
1565   Record.push_back(E->getNumTemplateArgs());
1566   Record.push_back(E->hasFirstQualifierFoundInScope());
1567
1568   if (E->hasTemplateKWAndArgsInfo()) {
1569     const ASTTemplateKWAndArgsInfo &ArgInfo =
1570         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>();
1571     AddTemplateKWAndArgsInfo(ArgInfo,
1572                              E->getTrailingObjects<TemplateArgumentLoc>());
1573   }
1574
1575   Record.push_back(E->isArrow());
1576   Record.AddSourceLocation(E->getOperatorLoc());
1577   Record.AddTypeRef(E->getBaseType());
1578   Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
1579   if (!E->isImplicitAccess())
1580     Record.AddStmt(E->getBase());
1581   else
1582     Record.AddStmt(nullptr);
1583
1584   if (E->hasFirstQualifierFoundInScope())
1585     Record.AddDeclRef(E->getFirstQualifierFoundInScope());
1586
1587   Record.AddDeclarationNameInfo(E->MemberNameInfo);
1588   Code = serialization::EXPR_CXX_DEPENDENT_SCOPE_MEMBER;
1589 }
1590
1591 void
1592 ASTStmtWriter::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1593   VisitExpr(E);
1594
1595   // Don't emit anything here, HasTemplateKWAndArgsInfo must be
1596   // emitted first.
1597
1598   Record.push_back(E->DependentScopeDeclRefExprBits.HasTemplateKWAndArgsInfo);
1599   if (E->DependentScopeDeclRefExprBits.HasTemplateKWAndArgsInfo) {
1600     const ASTTemplateKWAndArgsInfo &ArgInfo =
1601         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>();
1602     Record.push_back(ArgInfo.NumTemplateArgs);
1603     AddTemplateKWAndArgsInfo(ArgInfo,
1604                              E->getTrailingObjects<TemplateArgumentLoc>());
1605   }
1606
1607   Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
1608   Record.AddDeclarationNameInfo(E->NameInfo);
1609   Code = serialization::EXPR_CXX_DEPENDENT_SCOPE_DECL_REF;
1610 }
1611
1612 void
1613 ASTStmtWriter::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1614   VisitExpr(E);
1615   Record.push_back(E->arg_size());
1616   for (CXXUnresolvedConstructExpr::arg_iterator
1617          ArgI = E->arg_begin(), ArgE = E->arg_end(); ArgI != ArgE; ++ArgI)
1618     Record.AddStmt(*ArgI);
1619   Record.AddTypeSourceInfo(E->getTypeSourceInfo());
1620   Record.AddSourceLocation(E->getLParenLoc());
1621   Record.AddSourceLocation(E->getRParenLoc());
1622   Code = serialization::EXPR_CXX_UNRESOLVED_CONSTRUCT;
1623 }
1624
1625 void ASTStmtWriter::VisitOverloadExpr(OverloadExpr *E) {
1626   VisitExpr(E);
1627
1628   Record.push_back(E->getNumDecls());
1629   Record.push_back(E->hasTemplateKWAndArgsInfo());
1630   if (E->hasTemplateKWAndArgsInfo()) {
1631     const ASTTemplateKWAndArgsInfo &ArgInfo =
1632         *E->getTrailingASTTemplateKWAndArgsInfo();
1633     Record.push_back(ArgInfo.NumTemplateArgs);
1634     AddTemplateKWAndArgsInfo(ArgInfo, E->getTrailingTemplateArgumentLoc());
1635   }
1636
1637   for (OverloadExpr::decls_iterator OvI = E->decls_begin(),
1638                                     OvE = E->decls_end();
1639        OvI != OvE; ++OvI) {
1640     Record.AddDeclRef(OvI.getDecl());
1641     Record.push_back(OvI.getAccess());
1642   }
1643
1644   Record.AddDeclarationNameInfo(E->getNameInfo());
1645   Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
1646 }
1647
1648 void ASTStmtWriter::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
1649   VisitOverloadExpr(E);
1650   Record.push_back(E->isArrow());
1651   Record.push_back(E->hasUnresolvedUsing());
1652   Record.AddStmt(!E->isImplicitAccess() ? E->getBase() : nullptr);
1653   Record.AddTypeRef(E->getBaseType());
1654   Record.AddSourceLocation(E->getOperatorLoc());
1655   Code = serialization::EXPR_CXX_UNRESOLVED_MEMBER;
1656 }
1657
1658 void ASTStmtWriter::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
1659   VisitOverloadExpr(E);
1660   Record.push_back(E->requiresADL());
1661   Record.push_back(E->isOverloaded());
1662   Record.AddDeclRef(E->getNamingClass());
1663   Code = serialization::EXPR_CXX_UNRESOLVED_LOOKUP;
1664 }
1665
1666 void ASTStmtWriter::VisitTypeTraitExpr(TypeTraitExpr *E) {
1667   VisitExpr(E);
1668   Record.push_back(E->TypeTraitExprBits.NumArgs);
1669   Record.push_back(E->TypeTraitExprBits.Kind); // FIXME: Stable encoding
1670   Record.push_back(E->TypeTraitExprBits.Value);
1671   Record.AddSourceRange(E->getSourceRange());
1672   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1673     Record.AddTypeSourceInfo(E->getArg(I));
1674   Code = serialization::EXPR_TYPE_TRAIT;
1675 }
1676
1677 void ASTStmtWriter::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
1678   VisitExpr(E);
1679   Record.push_back(E->getTrait());
1680   Record.push_back(E->getValue());
1681   Record.AddSourceRange(E->getSourceRange());
1682   Record.AddTypeSourceInfo(E->getQueriedTypeSourceInfo());
1683   Record.AddStmt(E->getDimensionExpression());
1684   Code = serialization::EXPR_ARRAY_TYPE_TRAIT;
1685 }
1686
1687 void ASTStmtWriter::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
1688   VisitExpr(E);
1689   Record.push_back(E->getTrait());
1690   Record.push_back(E->getValue());
1691   Record.AddSourceRange(E->getSourceRange());
1692   Record.AddStmt(E->getQueriedExpression());
1693   Code = serialization::EXPR_CXX_EXPRESSION_TRAIT;
1694 }
1695
1696 void ASTStmtWriter::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1697   VisitExpr(E);
1698   Record.push_back(E->getValue());
1699   Record.AddSourceRange(E->getSourceRange());
1700   Record.AddStmt(E->getOperand());
1701   Code = serialization::EXPR_CXX_NOEXCEPT;
1702 }
1703
1704 void ASTStmtWriter::VisitPackExpansionExpr(PackExpansionExpr *E) {
1705   VisitExpr(E);
1706   Record.AddSourceLocation(E->getEllipsisLoc());
1707   Record.push_back(E->NumExpansions);
1708   Record.AddStmt(E->getPattern());
1709   Code = serialization::EXPR_PACK_EXPANSION;
1710 }
1711
1712 void ASTStmtWriter::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
1713   VisitExpr(E);
1714   Record.push_back(E->isPartiallySubstituted() ? E->getPartialArguments().size()
1715                                                : 0);
1716   Record.AddSourceLocation(E->OperatorLoc);
1717   Record.AddSourceLocation(E->PackLoc);
1718   Record.AddSourceLocation(E->RParenLoc);
1719   Record.AddDeclRef(E->Pack);
1720   if (E->isPartiallySubstituted()) {
1721     for (const auto &TA : E->getPartialArguments())
1722       Record.AddTemplateArgument(TA);
1723   } else if (!E->isValueDependent()) {
1724     Record.push_back(E->getPackLength());
1725   }
1726   Code = serialization::EXPR_SIZEOF_PACK;
1727 }
1728
1729 void ASTStmtWriter::VisitSubstNonTypeTemplateParmExpr(
1730                                               SubstNonTypeTemplateParmExpr *E) {
1731   VisitExpr(E);
1732   Record.AddDeclRef(E->getParameter());
1733   Record.AddSourceLocation(E->getNameLoc());
1734   Record.AddStmt(E->getReplacement());
1735   Code = serialization::EXPR_SUBST_NON_TYPE_TEMPLATE_PARM;
1736 }
1737
1738 void ASTStmtWriter::VisitSubstNonTypeTemplateParmPackExpr(
1739                                           SubstNonTypeTemplateParmPackExpr *E) {
1740   VisitExpr(E);
1741   Record.AddDeclRef(E->getParameterPack());
1742   Record.AddTemplateArgument(E->getArgumentPack());
1743   Record.AddSourceLocation(E->getParameterPackLocation());
1744   Code = serialization::EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK;
1745 }
1746
1747 void ASTStmtWriter::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
1748   VisitExpr(E);
1749   Record.push_back(E->getNumExpansions());
1750   Record.AddDeclRef(E->getParameterPack());
1751   Record.AddSourceLocation(E->getParameterPackLocation());
1752   for (FunctionParmPackExpr::iterator I = E->begin(), End = E->end();
1753        I != End; ++I)
1754     Record.AddDeclRef(*I);
1755   Code = serialization::EXPR_FUNCTION_PARM_PACK;
1756 }
1757
1758 void ASTStmtWriter::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
1759   VisitExpr(E);
1760   Record.AddStmt(E->getTemporary());
1761   Record.AddDeclRef(E->getExtendingDecl());
1762   Record.push_back(E->getManglingNumber());
1763   Code = serialization::EXPR_MATERIALIZE_TEMPORARY;
1764 }
1765
1766 void ASTStmtWriter::VisitCXXFoldExpr(CXXFoldExpr *E) {
1767   VisitExpr(E);
1768   Record.AddSourceLocation(E->LParenLoc);
1769   Record.AddSourceLocation(E->EllipsisLoc);
1770   Record.AddSourceLocation(E->RParenLoc);
1771   Record.AddStmt(E->SubExprs[0]);
1772   Record.AddStmt(E->SubExprs[1]);
1773   Record.push_back(E->Opcode);
1774   Code = serialization::EXPR_CXX_FOLD;
1775 }
1776
1777 void ASTStmtWriter::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
1778   VisitExpr(E);
1779   Record.AddStmt(E->getSourceExpr());
1780   Record.AddSourceLocation(E->getLocation());
1781   Record.push_back(E->isUnique());
1782   Code = serialization::EXPR_OPAQUE_VALUE;
1783 }
1784
1785 void ASTStmtWriter::VisitTypoExpr(TypoExpr *E) {
1786   VisitExpr(E);
1787   // TODO: Figure out sane writer behavior for a TypoExpr, if necessary
1788   llvm_unreachable("Cannot write TypoExpr nodes");
1789 }
1790
1791 //===----------------------------------------------------------------------===//
1792 // CUDA Expressions and Statements.
1793 //===----------------------------------------------------------------------===//
1794
1795 void ASTStmtWriter::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
1796   VisitCallExpr(E);
1797   Record.AddStmt(E->getConfig());
1798   Code = serialization::EXPR_CUDA_KERNEL_CALL;
1799 }
1800
1801 //===----------------------------------------------------------------------===//
1802 // OpenCL Expressions and Statements.
1803 //===----------------------------------------------------------------------===//
1804 void ASTStmtWriter::VisitAsTypeExpr(AsTypeExpr *E) {
1805   VisitExpr(E);
1806   Record.AddSourceLocation(E->getBuiltinLoc());
1807   Record.AddSourceLocation(E->getRParenLoc());
1808   Record.AddStmt(E->getSrcExpr());
1809   Code = serialization::EXPR_ASTYPE;
1810 }
1811
1812 //===----------------------------------------------------------------------===//
1813 // Microsoft Expressions and Statements.
1814 //===----------------------------------------------------------------------===//
1815 void ASTStmtWriter::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
1816   VisitExpr(E);
1817   Record.push_back(E->isArrow());
1818   Record.AddStmt(E->getBaseExpr());
1819   Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
1820   Record.AddSourceLocation(E->getMemberLoc());
1821   Record.AddDeclRef(E->getPropertyDecl());
1822   Code = serialization::EXPR_CXX_PROPERTY_REF_EXPR;
1823 }
1824
1825 void ASTStmtWriter::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr *E) {
1826   VisitExpr(E);
1827   Record.AddStmt(E->getBase());
1828   Record.AddStmt(E->getIdx());
1829   Record.AddSourceLocation(E->getRBracketLoc());
1830   Code = serialization::EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR;
1831 }
1832
1833 void ASTStmtWriter::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
1834   VisitExpr(E);
1835   Record.AddSourceRange(E->getSourceRange());
1836   Record.AddString(E->getUuidStr());
1837   if (E->isTypeOperand()) {
1838     Record.AddTypeSourceInfo(E->getTypeOperandSourceInfo());
1839     Code = serialization::EXPR_CXX_UUIDOF_TYPE;
1840   } else {
1841     Record.AddStmt(E->getExprOperand());
1842     Code = serialization::EXPR_CXX_UUIDOF_EXPR;
1843   }
1844 }
1845
1846 void ASTStmtWriter::VisitSEHExceptStmt(SEHExceptStmt *S) {
1847   VisitStmt(S);
1848   Record.AddSourceLocation(S->getExceptLoc());
1849   Record.AddStmt(S->getFilterExpr());
1850   Record.AddStmt(S->getBlock());
1851   Code = serialization::STMT_SEH_EXCEPT;
1852 }
1853
1854 void ASTStmtWriter::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
1855   VisitStmt(S);
1856   Record.AddSourceLocation(S->getFinallyLoc());
1857   Record.AddStmt(S->getBlock());
1858   Code = serialization::STMT_SEH_FINALLY;
1859 }
1860
1861 void ASTStmtWriter::VisitSEHTryStmt(SEHTryStmt *S) {
1862   VisitStmt(S);
1863   Record.push_back(S->getIsCXXTry());
1864   Record.AddSourceLocation(S->getTryLoc());
1865   Record.AddStmt(S->getTryBlock());
1866   Record.AddStmt(S->getHandler());
1867   Code = serialization::STMT_SEH_TRY;
1868 }
1869
1870 void ASTStmtWriter::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
1871   VisitStmt(S);
1872   Record.AddSourceLocation(S->getLeaveLoc());
1873   Code = serialization::STMT_SEH_LEAVE;
1874 }
1875
1876 //===----------------------------------------------------------------------===//
1877 // OpenMP Directives.
1878 //===----------------------------------------------------------------------===//
1879 void ASTStmtWriter::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
1880   Record.AddSourceLocation(E->getBeginLoc());
1881   Record.AddSourceLocation(E->getEndLoc());
1882   OMPClauseWriter ClauseWriter(Record);
1883   for (unsigned i = 0; i < E->getNumClauses(); ++i) {
1884     ClauseWriter.writeClause(E->getClause(i));
1885   }
1886   if (E->hasAssociatedStmt())
1887     Record.AddStmt(E->getAssociatedStmt());
1888 }
1889
1890 void ASTStmtWriter::VisitOMPLoopDirective(OMPLoopDirective *D) {
1891   VisitStmt(D);
1892   Record.push_back(D->getNumClauses());
1893   Record.push_back(D->getCollapsedNumber());
1894   VisitOMPExecutableDirective(D);
1895   Record.AddStmt(D->getIterationVariable());
1896   Record.AddStmt(D->getLastIteration());
1897   Record.AddStmt(D->getCalcLastIteration());
1898   Record.AddStmt(D->getPreCond());
1899   Record.AddStmt(D->getCond());
1900   Record.AddStmt(D->getInit());
1901   Record.AddStmt(D->getInc());
1902   Record.AddStmt(D->getPreInits());
1903   if (isOpenMPWorksharingDirective(D->getDirectiveKind()) ||
1904       isOpenMPTaskLoopDirective(D->getDirectiveKind()) ||
1905       isOpenMPDistributeDirective(D->getDirectiveKind())) {
1906     Record.AddStmt(D->getIsLastIterVariable());
1907     Record.AddStmt(D->getLowerBoundVariable());
1908     Record.AddStmt(D->getUpperBoundVariable());
1909     Record.AddStmt(D->getStrideVariable());
1910     Record.AddStmt(D->getEnsureUpperBound());
1911     Record.AddStmt(D->getNextLowerBound());
1912     Record.AddStmt(D->getNextUpperBound());
1913     Record.AddStmt(D->getNumIterations());
1914   }
1915   if (isOpenMPLoopBoundSharingDirective(D->getDirectiveKind())) {
1916     Record.AddStmt(D->getPrevLowerBoundVariable());
1917     Record.AddStmt(D->getPrevUpperBoundVariable());
1918     Record.AddStmt(D->getDistInc());
1919     Record.AddStmt(D->getPrevEnsureUpperBound());
1920     Record.AddStmt(D->getCombinedLowerBoundVariable());
1921     Record.AddStmt(D->getCombinedUpperBoundVariable());
1922     Record.AddStmt(D->getCombinedEnsureUpperBound());
1923     Record.AddStmt(D->getCombinedInit());
1924     Record.AddStmt(D->getCombinedCond());
1925     Record.AddStmt(D->getCombinedNextLowerBound());
1926     Record.AddStmt(D->getCombinedNextUpperBound());
1927     Record.AddStmt(D->getCombinedDistCond());
1928     Record.AddStmt(D->getCombinedParForInDistCond());
1929   }
1930   for (auto I : D->counters()) {
1931     Record.AddStmt(I);
1932   }
1933   for (auto I : D->private_counters()) {
1934     Record.AddStmt(I);
1935   }
1936   for (auto I : D->inits()) {
1937     Record.AddStmt(I);
1938   }
1939   for (auto I : D->updates()) {
1940     Record.AddStmt(I);
1941   }
1942   for (auto I : D->finals()) {
1943     Record.AddStmt(I);
1944   }
1945 }
1946
1947 void ASTStmtWriter::VisitOMPParallelDirective(OMPParallelDirective *D) {
1948   VisitStmt(D);
1949   Record.push_back(D->getNumClauses());
1950   VisitOMPExecutableDirective(D);
1951   Record.push_back(D->hasCancel() ? 1 : 0);
1952   Code = serialization::STMT_OMP_PARALLEL_DIRECTIVE;
1953 }
1954
1955 void ASTStmtWriter::VisitOMPSimdDirective(OMPSimdDirective *D) {
1956   VisitOMPLoopDirective(D);
1957   Code = serialization::STMT_OMP_SIMD_DIRECTIVE;
1958 }
1959
1960 void ASTStmtWriter::VisitOMPForDirective(OMPForDirective *D) {
1961   VisitOMPLoopDirective(D);
1962   Record.push_back(D->hasCancel() ? 1 : 0);
1963   Code = serialization::STMT_OMP_FOR_DIRECTIVE;
1964 }
1965
1966 void ASTStmtWriter::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
1967   VisitOMPLoopDirective(D);
1968   Code = serialization::STMT_OMP_FOR_SIMD_DIRECTIVE;
1969 }
1970
1971 void ASTStmtWriter::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
1972   VisitStmt(D);
1973   Record.push_back(D->getNumClauses());
1974   VisitOMPExecutableDirective(D);
1975   Record.push_back(D->hasCancel() ? 1 : 0);
1976   Code = serialization::STMT_OMP_SECTIONS_DIRECTIVE;
1977 }
1978
1979 void ASTStmtWriter::VisitOMPSectionDirective(OMPSectionDirective *D) {
1980   VisitStmt(D);
1981   VisitOMPExecutableDirective(D);
1982   Record.push_back(D->hasCancel() ? 1 : 0);
1983   Code = serialization::STMT_OMP_SECTION_DIRECTIVE;
1984 }
1985
1986 void ASTStmtWriter::VisitOMPSingleDirective(OMPSingleDirective *D) {
1987   VisitStmt(D);
1988   Record.push_back(D->getNumClauses());
1989   VisitOMPExecutableDirective(D);
1990   Code = serialization::STMT_OMP_SINGLE_DIRECTIVE;
1991 }
1992
1993 void ASTStmtWriter::VisitOMPMasterDirective(OMPMasterDirective *D) {
1994   VisitStmt(D);
1995   VisitOMPExecutableDirective(D);
1996   Code = serialization::STMT_OMP_MASTER_DIRECTIVE;
1997 }
1998
1999 void ASTStmtWriter::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
2000   VisitStmt(D);
2001   Record.push_back(D->getNumClauses());
2002   VisitOMPExecutableDirective(D);
2003   Record.AddDeclarationNameInfo(D->getDirectiveName());
2004   Code = serialization::STMT_OMP_CRITICAL_DIRECTIVE;
2005 }
2006
2007 void ASTStmtWriter::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
2008   VisitOMPLoopDirective(D);
2009   Record.push_back(D->hasCancel() ? 1 : 0);
2010   Code = serialization::STMT_OMP_PARALLEL_FOR_DIRECTIVE;
2011 }
2012
2013 void ASTStmtWriter::VisitOMPParallelForSimdDirective(
2014     OMPParallelForSimdDirective *D) {
2015   VisitOMPLoopDirective(D);
2016   Code = serialization::STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE;
2017 }
2018
2019 void ASTStmtWriter::VisitOMPParallelSectionsDirective(
2020     OMPParallelSectionsDirective *D) {
2021   VisitStmt(D);
2022   Record.push_back(D->getNumClauses());
2023   VisitOMPExecutableDirective(D);
2024   Record.push_back(D->hasCancel() ? 1 : 0);
2025   Code = serialization::STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE;
2026 }
2027
2028 void ASTStmtWriter::VisitOMPTaskDirective(OMPTaskDirective *D) {
2029   VisitStmt(D);
2030   Record.push_back(D->getNumClauses());
2031   VisitOMPExecutableDirective(D);
2032   Record.push_back(D->hasCancel() ? 1 : 0);
2033   Code = serialization::STMT_OMP_TASK_DIRECTIVE;
2034 }
2035
2036 void ASTStmtWriter::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2037   VisitStmt(D);
2038   Record.push_back(D->getNumClauses());
2039   VisitOMPExecutableDirective(D);
2040   Record.AddStmt(D->getX());
2041   Record.AddStmt(D->getV());
2042   Record.AddStmt(D->getExpr());
2043   Record.AddStmt(D->getUpdateExpr());
2044   Record.push_back(D->isXLHSInRHSPart() ? 1 : 0);
2045   Record.push_back(D->isPostfixUpdate() ? 1 : 0);
2046   Code = serialization::STMT_OMP_ATOMIC_DIRECTIVE;
2047 }
2048
2049 void ASTStmtWriter::VisitOMPTargetDirective(OMPTargetDirective *D) {
2050   VisitStmt(D);
2051   Record.push_back(D->getNumClauses());
2052   VisitOMPExecutableDirective(D);
2053   Code = serialization::STMT_OMP_TARGET_DIRECTIVE;
2054 }
2055
2056 void ASTStmtWriter::VisitOMPTargetDataDirective(OMPTargetDataDirective *D) {
2057   VisitStmt(D);
2058   Record.push_back(D->getNumClauses());
2059   VisitOMPExecutableDirective(D);
2060   Code = serialization::STMT_OMP_TARGET_DATA_DIRECTIVE;
2061 }
2062
2063 void ASTStmtWriter::VisitOMPTargetEnterDataDirective(
2064     OMPTargetEnterDataDirective *D) {
2065   VisitStmt(D);
2066   Record.push_back(D->getNumClauses());
2067   VisitOMPExecutableDirective(D);
2068   Code = serialization::STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE;
2069 }
2070
2071 void ASTStmtWriter::VisitOMPTargetExitDataDirective(
2072     OMPTargetExitDataDirective *D) {
2073   VisitStmt(D);
2074   Record.push_back(D->getNumClauses());
2075   VisitOMPExecutableDirective(D);
2076   Code = serialization::STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE;
2077 }
2078
2079 void ASTStmtWriter::VisitOMPTargetParallelDirective(
2080     OMPTargetParallelDirective *D) {
2081   VisitStmt(D);
2082   Record.push_back(D->getNumClauses());
2083   VisitOMPExecutableDirective(D);
2084   Code = serialization::STMT_OMP_TARGET_PARALLEL_DIRECTIVE;
2085 }
2086
2087 void ASTStmtWriter::VisitOMPTargetParallelForDirective(
2088     OMPTargetParallelForDirective *D) {
2089   VisitOMPLoopDirective(D);
2090   Record.push_back(D->hasCancel() ? 1 : 0);
2091   Code = serialization::STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE;
2092 }
2093
2094 void ASTStmtWriter::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
2095   VisitStmt(D);
2096   VisitOMPExecutableDirective(D);
2097   Code = serialization::STMT_OMP_TASKYIELD_DIRECTIVE;
2098 }
2099
2100 void ASTStmtWriter::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
2101   VisitStmt(D);
2102   VisitOMPExecutableDirective(D);
2103   Code = serialization::STMT_OMP_BARRIER_DIRECTIVE;
2104 }
2105
2106 void ASTStmtWriter::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
2107   VisitStmt(D);
2108   VisitOMPExecutableDirective(D);
2109   Code = serialization::STMT_OMP_TASKWAIT_DIRECTIVE;
2110 }
2111
2112 void ASTStmtWriter::VisitOMPTaskgroupDirective(OMPTaskgroupDirective *D) {
2113   VisitStmt(D);
2114   Record.push_back(D->getNumClauses());
2115   VisitOMPExecutableDirective(D);
2116   Record.AddStmt(D->getReductionRef());
2117   Code = serialization::STMT_OMP_TASKGROUP_DIRECTIVE;
2118 }
2119
2120 void ASTStmtWriter::VisitOMPFlushDirective(OMPFlushDirective *D) {
2121   VisitStmt(D);
2122   Record.push_back(D->getNumClauses());
2123   VisitOMPExecutableDirective(D);
2124   Code = serialization::STMT_OMP_FLUSH_DIRECTIVE;
2125 }
2126
2127 void ASTStmtWriter::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
2128   VisitStmt(D);
2129   Record.push_back(D->getNumClauses());
2130   VisitOMPExecutableDirective(D);
2131   Code = serialization::STMT_OMP_ORDERED_DIRECTIVE;
2132 }
2133
2134 void ASTStmtWriter::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2135   VisitStmt(D);
2136   Record.push_back(D->getNumClauses());
2137   VisitOMPExecutableDirective(D);
2138   Code = serialization::STMT_OMP_TEAMS_DIRECTIVE;
2139 }
2140
2141 void ASTStmtWriter::VisitOMPCancellationPointDirective(
2142     OMPCancellationPointDirective *D) {
2143   VisitStmt(D);
2144   VisitOMPExecutableDirective(D);
2145   Record.push_back(D->getCancelRegion());
2146   Code = serialization::STMT_OMP_CANCELLATION_POINT_DIRECTIVE;
2147 }
2148
2149 void ASTStmtWriter::VisitOMPCancelDirective(OMPCancelDirective *D) {
2150   VisitStmt(D);
2151   Record.push_back(D->getNumClauses());
2152   VisitOMPExecutableDirective(D);
2153   Record.push_back(D->getCancelRegion());
2154   Code = serialization::STMT_OMP_CANCEL_DIRECTIVE;
2155 }
2156
2157 void ASTStmtWriter::VisitOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
2158   VisitOMPLoopDirective(D);
2159   Code = serialization::STMT_OMP_TASKLOOP_DIRECTIVE;
2160 }
2161
2162 void ASTStmtWriter::VisitOMPTaskLoopSimdDirective(OMPTaskLoopSimdDirective *D) {
2163   VisitOMPLoopDirective(D);
2164   Code = serialization::STMT_OMP_TASKLOOP_SIMD_DIRECTIVE;
2165 }
2166
2167 void ASTStmtWriter::VisitOMPDistributeDirective(OMPDistributeDirective *D) {
2168   VisitOMPLoopDirective(D);
2169   Code = serialization::STMT_OMP_DISTRIBUTE_DIRECTIVE;
2170 }
2171
2172 void ASTStmtWriter::VisitOMPTargetUpdateDirective(OMPTargetUpdateDirective *D) {
2173   VisitStmt(D);
2174   Record.push_back(D->getNumClauses());
2175   VisitOMPExecutableDirective(D);
2176   Code = serialization::STMT_OMP_TARGET_UPDATE_DIRECTIVE;
2177 }
2178
2179 void ASTStmtWriter::VisitOMPDistributeParallelForDirective(
2180     OMPDistributeParallelForDirective *D) {
2181   VisitOMPLoopDirective(D);
2182   Record.push_back(D->hasCancel() ? 1 : 0);
2183   Code = serialization::STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE;
2184 }
2185
2186 void ASTStmtWriter::VisitOMPDistributeParallelForSimdDirective(
2187     OMPDistributeParallelForSimdDirective *D) {
2188   VisitOMPLoopDirective(D);
2189   Code = serialization::STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE;
2190 }
2191
2192 void ASTStmtWriter::VisitOMPDistributeSimdDirective(
2193     OMPDistributeSimdDirective *D) {
2194   VisitOMPLoopDirective(D);
2195   Code = serialization::STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE;
2196 }
2197
2198 void ASTStmtWriter::VisitOMPTargetParallelForSimdDirective(
2199     OMPTargetParallelForSimdDirective *D) {
2200   VisitOMPLoopDirective(D);
2201   Code = serialization::STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE;
2202 }
2203
2204 void ASTStmtWriter::VisitOMPTargetSimdDirective(OMPTargetSimdDirective *D) {
2205   VisitOMPLoopDirective(D);
2206   Code = serialization::STMT_OMP_TARGET_SIMD_DIRECTIVE;
2207 }
2208
2209 void ASTStmtWriter::VisitOMPTeamsDistributeDirective(
2210     OMPTeamsDistributeDirective *D) {
2211   VisitOMPLoopDirective(D);
2212   Code = serialization::STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE;
2213 }
2214
2215 void ASTStmtWriter::VisitOMPTeamsDistributeSimdDirective(
2216     OMPTeamsDistributeSimdDirective *D) {
2217   VisitOMPLoopDirective(D);
2218   Code = serialization::STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE;
2219 }
2220
2221 void ASTStmtWriter::VisitOMPTeamsDistributeParallelForSimdDirective(
2222     OMPTeamsDistributeParallelForSimdDirective *D) {
2223   VisitOMPLoopDirective(D);
2224   Code = serialization::STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE;
2225 }
2226
2227 void ASTStmtWriter::VisitOMPTeamsDistributeParallelForDirective(
2228     OMPTeamsDistributeParallelForDirective *D) {
2229   VisitOMPLoopDirective(D);
2230   Record.push_back(D->hasCancel() ? 1 : 0);
2231   Code = serialization::STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE;
2232 }
2233
2234 void ASTStmtWriter::VisitOMPTargetTeamsDirective(OMPTargetTeamsDirective *D) {
2235   VisitStmt(D);
2236   Record.push_back(D->getNumClauses());
2237   VisitOMPExecutableDirective(D);
2238   Code = serialization::STMT_OMP_TARGET_TEAMS_DIRECTIVE;
2239 }
2240
2241 void ASTStmtWriter::VisitOMPTargetTeamsDistributeDirective(
2242     OMPTargetTeamsDistributeDirective *D) {
2243   VisitOMPLoopDirective(D);
2244   Code = serialization::STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE;
2245 }
2246
2247 void ASTStmtWriter::VisitOMPTargetTeamsDistributeParallelForDirective(
2248     OMPTargetTeamsDistributeParallelForDirective *D) {
2249   VisitOMPLoopDirective(D);
2250   Record.push_back(D->hasCancel() ? 1 : 0);
2251   Code = serialization::STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE;
2252 }
2253
2254 void ASTStmtWriter::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
2255     OMPTargetTeamsDistributeParallelForSimdDirective *D) {
2256   VisitOMPLoopDirective(D);
2257   Code = serialization::
2258       STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE;
2259 }
2260
2261 void ASTStmtWriter::VisitOMPTargetTeamsDistributeSimdDirective(
2262     OMPTargetTeamsDistributeSimdDirective *D) {
2263   VisitOMPLoopDirective(D);
2264   Code = serialization::STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE;
2265 }
2266
2267 //===----------------------------------------------------------------------===//
2268 // ASTWriter Implementation
2269 //===----------------------------------------------------------------------===//
2270
2271 unsigned ASTWriter::RecordSwitchCaseID(SwitchCase *S) {
2272   assert(SwitchCaseIDs.find(S) == SwitchCaseIDs.end() &&
2273          "SwitchCase recorded twice");
2274   unsigned NextID = SwitchCaseIDs.size();
2275   SwitchCaseIDs[S] = NextID;
2276   return NextID;
2277 }
2278
2279 unsigned ASTWriter::getSwitchCaseID(SwitchCase *S) {
2280   assert(SwitchCaseIDs.find(S) != SwitchCaseIDs.end() &&
2281          "SwitchCase hasn't been seen yet");
2282   return SwitchCaseIDs[S];
2283 }
2284
2285 void ASTWriter::ClearSwitchCaseIDs() {
2286   SwitchCaseIDs.clear();
2287 }
2288
2289 /// Write the given substatement or subexpression to the
2290 /// bitstream.
2291 void ASTWriter::WriteSubStmt(Stmt *S) {
2292   RecordData Record;
2293   ASTStmtWriter Writer(*this, Record);
2294   ++NumStatements;
2295
2296   if (!S) {
2297     Stream.EmitRecord(serialization::STMT_NULL_PTR, Record);
2298     return;
2299   }
2300
2301   llvm::DenseMap<Stmt *, uint64_t>::iterator I = SubStmtEntries.find(S);
2302   if (I != SubStmtEntries.end()) {
2303     Record.push_back(I->second);
2304     Stream.EmitRecord(serialization::STMT_REF_PTR, Record);
2305     return;
2306   }
2307
2308 #ifndef NDEBUG
2309   assert(!ParentStmts.count(S) && "There is a Stmt cycle!");
2310
2311   struct ParentStmtInserterRAII {
2312     Stmt *S;
2313     llvm::DenseSet<Stmt *> &ParentStmts;
2314
2315     ParentStmtInserterRAII(Stmt *S, llvm::DenseSet<Stmt *> &ParentStmts)
2316       : S(S), ParentStmts(ParentStmts) {
2317       ParentStmts.insert(S);
2318     }
2319     ~ParentStmtInserterRAII() {
2320       ParentStmts.erase(S);
2321     }
2322   };
2323
2324   ParentStmtInserterRAII ParentStmtInserter(S, ParentStmts);
2325 #endif
2326
2327   Writer.Visit(S);
2328
2329   uint64_t Offset = Writer.Emit();
2330   SubStmtEntries[S] = Offset;
2331 }
2332
2333 /// Flush all of the statements that have been added to the
2334 /// queue via AddStmt().
2335 void ASTRecordWriter::FlushStmts() {
2336   // We expect to be the only consumer of the two temporary statement maps,
2337   // assert that they are empty.
2338   assert(Writer->SubStmtEntries.empty() && "unexpected entries in sub-stmt map");
2339   assert(Writer->ParentStmts.empty() && "unexpected entries in parent stmt map");
2340
2341   for (unsigned I = 0, N = StmtsToEmit.size(); I != N; ++I) {
2342     Writer->WriteSubStmt(StmtsToEmit[I]);
2343
2344     assert(N == StmtsToEmit.size() && "record modified while being written!");
2345
2346     // Note that we are at the end of a full expression. Any
2347     // expression records that follow this one are part of a different
2348     // expression.
2349     Writer->Stream.EmitRecord(serialization::STMT_STOP, ArrayRef<uint32_t>());
2350
2351     Writer->SubStmtEntries.clear();
2352     Writer->ParentStmts.clear();
2353   }
2354
2355   StmtsToEmit.clear();
2356 }
2357
2358 void ASTRecordWriter::FlushSubStmts() {
2359   // For a nested statement, write out the substatements in reverse order (so
2360   // that a simple stack machine can be used when loading), and don't emit a
2361   // STMT_STOP after each one.
2362   for (unsigned I = 0, N = StmtsToEmit.size(); I != N; ++I) {
2363     Writer->WriteSubStmt(StmtsToEmit[N - I - 1]);
2364     assert(N == StmtsToEmit.size() && "record modified while being written!");
2365   }
2366
2367   StmtsToEmit.clear();
2368 }