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