xref: /freebsd/contrib/llvm-project/clang/lib/Serialization/ASTReaderStmt.cpp (revision 77013d11e6483b970af25e13c9b892075742f7e5)
1 //===- ASTReaderStmt.cpp - Stmt/Expr Deserialization ----------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // Statement/expression deserialization.  This implements the
10 // ASTReader::ReadStmt method.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "clang/AST/ASTConcept.h"
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/AttrIterator.h"
17 #include "clang/AST/Decl.h"
18 #include "clang/AST/DeclAccessPair.h"
19 #include "clang/AST/DeclCXX.h"
20 #include "clang/AST/DeclGroup.h"
21 #include "clang/AST/DeclObjC.h"
22 #include "clang/AST/DeclTemplate.h"
23 #include "clang/AST/DeclarationName.h"
24 #include "clang/AST/DependenceFlags.h"
25 #include "clang/AST/Expr.h"
26 #include "clang/AST/ExprCXX.h"
27 #include "clang/AST/ExprObjC.h"
28 #include "clang/AST/ExprOpenMP.h"
29 #include "clang/AST/NestedNameSpecifier.h"
30 #include "clang/AST/OpenMPClause.h"
31 #include "clang/AST/OperationKinds.h"
32 #include "clang/AST/Stmt.h"
33 #include "clang/AST/StmtCXX.h"
34 #include "clang/AST/StmtObjC.h"
35 #include "clang/AST/StmtOpenMP.h"
36 #include "clang/AST/StmtVisitor.h"
37 #include "clang/AST/TemplateBase.h"
38 #include "clang/AST/Type.h"
39 #include "clang/AST/UnresolvedSet.h"
40 #include "clang/Basic/CapturedStmt.h"
41 #include "clang/Basic/ExpressionTraits.h"
42 #include "clang/Basic/LLVM.h"
43 #include "clang/Basic/Lambda.h"
44 #include "clang/Basic/LangOptions.h"
45 #include "clang/Basic/OpenMPKinds.h"
46 #include "clang/Basic/OperatorKinds.h"
47 #include "clang/Basic/SourceLocation.h"
48 #include "clang/Basic/Specifiers.h"
49 #include "clang/Basic/TypeTraits.h"
50 #include "clang/Lex/Token.h"
51 #include "clang/Serialization/ASTBitCodes.h"
52 #include "clang/Serialization/ASTRecordReader.h"
53 #include "llvm/ADT/BitmaskEnum.h"
54 #include "llvm/ADT/DenseMap.h"
55 #include "llvm/ADT/SmallString.h"
56 #include "llvm/ADT/SmallVector.h"
57 #include "llvm/ADT/StringRef.h"
58 #include "llvm/Bitstream/BitstreamReader.h"
59 #include "llvm/Support/Casting.h"
60 #include "llvm/Support/ErrorHandling.h"
61 #include <algorithm>
62 #include <cassert>
63 #include <cstdint>
64 #include <string>
65 
66 using namespace clang;
67 using namespace serialization;
68 
69 namespace clang {
70 
71   class ASTStmtReader : public StmtVisitor<ASTStmtReader> {
72     ASTRecordReader &Record;
73     llvm::BitstreamCursor &DeclsCursor;
74 
75     SourceLocation readSourceLocation() {
76       return Record.readSourceLocation();
77     }
78 
79     SourceRange readSourceRange() {
80       return Record.readSourceRange();
81     }
82 
83     std::string readString() {
84       return Record.readString();
85     }
86 
87     TypeSourceInfo *readTypeSourceInfo() {
88       return Record.readTypeSourceInfo();
89     }
90 
91     Decl *readDecl() {
92       return Record.readDecl();
93     }
94 
95     template<typename T>
96     T *readDeclAs() {
97       return Record.readDeclAs<T>();
98     }
99 
100   public:
101     ASTStmtReader(ASTRecordReader &Record, llvm::BitstreamCursor &Cursor)
102         : Record(Record), DeclsCursor(Cursor) {}
103 
104     /// The number of record fields required for the Stmt class
105     /// itself.
106     static const unsigned NumStmtFields = 0;
107 
108     /// The number of record fields required for the Expr class
109     /// itself.
110     static const unsigned NumExprFields =
111         NumStmtFields + llvm::BitWidth<ExprDependence> + 3;
112 
113     /// Read and initialize a ExplicitTemplateArgumentList structure.
114     void ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
115                                    TemplateArgumentLoc *ArgsLocArray,
116                                    unsigned NumTemplateArgs);
117 
118     /// Read and initialize a ExplicitTemplateArgumentList structure.
119     void ReadExplicitTemplateArgumentList(ASTTemplateArgumentListInfo &ArgList,
120                                           unsigned NumTemplateArgs);
121 
122     void VisitStmt(Stmt *S);
123 #define STMT(Type, Base) \
124     void Visit##Type(Type *);
125 #include "clang/AST/StmtNodes.inc"
126   };
127 
128 } // namespace clang
129 
130 void ASTStmtReader::ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
131                                               TemplateArgumentLoc *ArgsLocArray,
132                                               unsigned NumTemplateArgs) {
133   SourceLocation TemplateKWLoc = readSourceLocation();
134   TemplateArgumentListInfo ArgInfo;
135   ArgInfo.setLAngleLoc(readSourceLocation());
136   ArgInfo.setRAngleLoc(readSourceLocation());
137   for (unsigned i = 0; i != NumTemplateArgs; ++i)
138     ArgInfo.addArgument(Record.readTemplateArgumentLoc());
139   Args.initializeFrom(TemplateKWLoc, ArgInfo, ArgsLocArray);
140 }
141 
142 void ASTStmtReader::VisitStmt(Stmt *S) {
143   assert(Record.getIdx() == NumStmtFields && "Incorrect statement field count");
144 }
145 
146 void ASTStmtReader::VisitNullStmt(NullStmt *S) {
147   VisitStmt(S);
148   S->setSemiLoc(readSourceLocation());
149   S->NullStmtBits.HasLeadingEmptyMacro = Record.readInt();
150 }
151 
152 void ASTStmtReader::VisitCompoundStmt(CompoundStmt *S) {
153   VisitStmt(S);
154   SmallVector<Stmt *, 16> Stmts;
155   unsigned NumStmts = Record.readInt();
156   while (NumStmts--)
157     Stmts.push_back(Record.readSubStmt());
158   S->setStmts(Stmts);
159   S->CompoundStmtBits.LBraceLoc = readSourceLocation();
160   S->RBraceLoc = readSourceLocation();
161 }
162 
163 void ASTStmtReader::VisitSwitchCase(SwitchCase *S) {
164   VisitStmt(S);
165   Record.recordSwitchCaseID(S, Record.readInt());
166   S->setKeywordLoc(readSourceLocation());
167   S->setColonLoc(readSourceLocation());
168 }
169 
170 void ASTStmtReader::VisitCaseStmt(CaseStmt *S) {
171   VisitSwitchCase(S);
172   bool CaseStmtIsGNURange = Record.readInt();
173   S->setLHS(Record.readSubExpr());
174   S->setSubStmt(Record.readSubStmt());
175   if (CaseStmtIsGNURange) {
176     S->setRHS(Record.readSubExpr());
177     S->setEllipsisLoc(readSourceLocation());
178   }
179 }
180 
181 void ASTStmtReader::VisitDefaultStmt(DefaultStmt *S) {
182   VisitSwitchCase(S);
183   S->setSubStmt(Record.readSubStmt());
184 }
185 
186 void ASTStmtReader::VisitLabelStmt(LabelStmt *S) {
187   VisitStmt(S);
188   auto *LD = readDeclAs<LabelDecl>();
189   LD->setStmt(S);
190   S->setDecl(LD);
191   S->setSubStmt(Record.readSubStmt());
192   S->setIdentLoc(readSourceLocation());
193 }
194 
195 void ASTStmtReader::VisitAttributedStmt(AttributedStmt *S) {
196   VisitStmt(S);
197   // NumAttrs in AttributedStmt is set when creating an empty
198   // AttributedStmt in AttributedStmt::CreateEmpty, since it is needed
199   // to allocate the right amount of space for the trailing Attr *.
200   uint64_t NumAttrs = Record.readInt();
201   AttrVec Attrs;
202   Record.readAttributes(Attrs);
203   (void)NumAttrs;
204   assert(NumAttrs == S->AttributedStmtBits.NumAttrs);
205   assert(NumAttrs == Attrs.size());
206   std::copy(Attrs.begin(), Attrs.end(), S->getAttrArrayPtr());
207   S->SubStmt = Record.readSubStmt();
208   S->AttributedStmtBits.AttrLoc = readSourceLocation();
209 }
210 
211 void ASTStmtReader::VisitIfStmt(IfStmt *S) {
212   VisitStmt(S);
213 
214   S->setConstexpr(Record.readInt());
215   bool HasElse = Record.readInt();
216   bool HasVar = Record.readInt();
217   bool HasInit = Record.readInt();
218 
219   S->setCond(Record.readSubExpr());
220   S->setThen(Record.readSubStmt());
221   if (HasElse)
222     S->setElse(Record.readSubStmt());
223   if (HasVar)
224     S->setConditionVariable(Record.getContext(), readDeclAs<VarDecl>());
225   if (HasInit)
226     S->setInit(Record.readSubStmt());
227 
228   S->setIfLoc(readSourceLocation());
229   S->setLParenLoc(readSourceLocation());
230   S->setRParenLoc(readSourceLocation());
231   if (HasElse)
232     S->setElseLoc(readSourceLocation());
233 }
234 
235 void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
236   VisitStmt(S);
237 
238   bool HasInit = Record.readInt();
239   bool HasVar = Record.readInt();
240   bool AllEnumCasesCovered = Record.readInt();
241   if (AllEnumCasesCovered)
242     S->setAllEnumCasesCovered();
243 
244   S->setCond(Record.readSubExpr());
245   S->setBody(Record.readSubStmt());
246   if (HasInit)
247     S->setInit(Record.readSubStmt());
248   if (HasVar)
249     S->setConditionVariable(Record.getContext(), readDeclAs<VarDecl>());
250 
251   S->setSwitchLoc(readSourceLocation());
252   S->setLParenLoc(readSourceLocation());
253   S->setRParenLoc(readSourceLocation());
254 
255   SwitchCase *PrevSC = nullptr;
256   for (auto E = Record.size(); Record.getIdx() != E; ) {
257     SwitchCase *SC = Record.getSwitchCaseWithID(Record.readInt());
258     if (PrevSC)
259       PrevSC->setNextSwitchCase(SC);
260     else
261       S->setSwitchCaseList(SC);
262 
263     PrevSC = SC;
264   }
265 }
266 
267 void ASTStmtReader::VisitWhileStmt(WhileStmt *S) {
268   VisitStmt(S);
269 
270   bool HasVar = Record.readInt();
271 
272   S->setCond(Record.readSubExpr());
273   S->setBody(Record.readSubStmt());
274   if (HasVar)
275     S->setConditionVariable(Record.getContext(), readDeclAs<VarDecl>());
276 
277   S->setWhileLoc(readSourceLocation());
278   S->setLParenLoc(readSourceLocation());
279   S->setRParenLoc(readSourceLocation());
280 }
281 
282 void ASTStmtReader::VisitDoStmt(DoStmt *S) {
283   VisitStmt(S);
284   S->setCond(Record.readSubExpr());
285   S->setBody(Record.readSubStmt());
286   S->setDoLoc(readSourceLocation());
287   S->setWhileLoc(readSourceLocation());
288   S->setRParenLoc(readSourceLocation());
289 }
290 
291 void ASTStmtReader::VisitForStmt(ForStmt *S) {
292   VisitStmt(S);
293   S->setInit(Record.readSubStmt());
294   S->setCond(Record.readSubExpr());
295   S->setConditionVariable(Record.getContext(), readDeclAs<VarDecl>());
296   S->setInc(Record.readSubExpr());
297   S->setBody(Record.readSubStmt());
298   S->setForLoc(readSourceLocation());
299   S->setLParenLoc(readSourceLocation());
300   S->setRParenLoc(readSourceLocation());
301 }
302 
303 void ASTStmtReader::VisitGotoStmt(GotoStmt *S) {
304   VisitStmt(S);
305   S->setLabel(readDeclAs<LabelDecl>());
306   S->setGotoLoc(readSourceLocation());
307   S->setLabelLoc(readSourceLocation());
308 }
309 
310 void ASTStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
311   VisitStmt(S);
312   S->setGotoLoc(readSourceLocation());
313   S->setStarLoc(readSourceLocation());
314   S->setTarget(Record.readSubExpr());
315 }
316 
317 void ASTStmtReader::VisitContinueStmt(ContinueStmt *S) {
318   VisitStmt(S);
319   S->setContinueLoc(readSourceLocation());
320 }
321 
322 void ASTStmtReader::VisitBreakStmt(BreakStmt *S) {
323   VisitStmt(S);
324   S->setBreakLoc(readSourceLocation());
325 }
326 
327 void ASTStmtReader::VisitReturnStmt(ReturnStmt *S) {
328   VisitStmt(S);
329 
330   bool HasNRVOCandidate = Record.readInt();
331 
332   S->setRetValue(Record.readSubExpr());
333   if (HasNRVOCandidate)
334     S->setNRVOCandidate(readDeclAs<VarDecl>());
335 
336   S->setReturnLoc(readSourceLocation());
337 }
338 
339 void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
340   VisitStmt(S);
341   S->setStartLoc(readSourceLocation());
342   S->setEndLoc(readSourceLocation());
343 
344   if (Record.size() - Record.getIdx() == 1) {
345     // Single declaration
346     S->setDeclGroup(DeclGroupRef(readDecl()));
347   } else {
348     SmallVector<Decl *, 16> Decls;
349     int N = Record.size() - Record.getIdx();
350     Decls.reserve(N);
351     for (int I = 0; I < N; ++I)
352       Decls.push_back(readDecl());
353     S->setDeclGroup(DeclGroupRef(DeclGroup::Create(Record.getContext(),
354                                                    Decls.data(),
355                                                    Decls.size())));
356   }
357 }
358 
359 void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
360   VisitStmt(S);
361   S->NumOutputs = Record.readInt();
362   S->NumInputs = Record.readInt();
363   S->NumClobbers = Record.readInt();
364   S->setAsmLoc(readSourceLocation());
365   S->setVolatile(Record.readInt());
366   S->setSimple(Record.readInt());
367 }
368 
369 void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
370   VisitAsmStmt(S);
371   S->NumLabels = Record.readInt();
372   S->setRParenLoc(readSourceLocation());
373   S->setAsmString(cast_or_null<StringLiteral>(Record.readSubStmt()));
374 
375   unsigned NumOutputs = S->getNumOutputs();
376   unsigned NumInputs = S->getNumInputs();
377   unsigned NumClobbers = S->getNumClobbers();
378   unsigned NumLabels = S->getNumLabels();
379 
380   // Outputs and inputs
381   SmallVector<IdentifierInfo *, 16> Names;
382   SmallVector<StringLiteral*, 16> Constraints;
383   SmallVector<Stmt*, 16> Exprs;
384   for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
385     Names.push_back(Record.readIdentifier());
386     Constraints.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
387     Exprs.push_back(Record.readSubStmt());
388   }
389 
390   // Constraints
391   SmallVector<StringLiteral*, 16> Clobbers;
392   for (unsigned I = 0; I != NumClobbers; ++I)
393     Clobbers.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
394 
395   // Labels
396   for (unsigned I = 0, N = NumLabels; I != N; ++I)
397     Exprs.push_back(Record.readSubStmt());
398 
399   S->setOutputsAndInputsAndClobbers(Record.getContext(),
400                                     Names.data(), Constraints.data(),
401                                     Exprs.data(), NumOutputs, NumInputs,
402                                     NumLabels,
403                                     Clobbers.data(), NumClobbers);
404 }
405 
406 void ASTStmtReader::VisitMSAsmStmt(MSAsmStmt *S) {
407   VisitAsmStmt(S);
408   S->LBraceLoc = readSourceLocation();
409   S->EndLoc = readSourceLocation();
410   S->NumAsmToks = Record.readInt();
411   std::string AsmStr = readString();
412 
413   // Read the tokens.
414   SmallVector<Token, 16> AsmToks;
415   AsmToks.reserve(S->NumAsmToks);
416   for (unsigned i = 0, e = S->NumAsmToks; i != e; ++i) {
417     AsmToks.push_back(Record.readToken());
418   }
419 
420   // The calls to reserve() for the FooData vectors are mandatory to
421   // prevent dead StringRefs in the Foo vectors.
422 
423   // Read the clobbers.
424   SmallVector<std::string, 16> ClobbersData;
425   SmallVector<StringRef, 16> Clobbers;
426   ClobbersData.reserve(S->NumClobbers);
427   Clobbers.reserve(S->NumClobbers);
428   for (unsigned i = 0, e = S->NumClobbers; i != e; ++i) {
429     ClobbersData.push_back(readString());
430     Clobbers.push_back(ClobbersData.back());
431   }
432 
433   // Read the operands.
434   unsigned NumOperands = S->NumOutputs + S->NumInputs;
435   SmallVector<Expr*, 16> Exprs;
436   SmallVector<std::string, 16> ConstraintsData;
437   SmallVector<StringRef, 16> Constraints;
438   Exprs.reserve(NumOperands);
439   ConstraintsData.reserve(NumOperands);
440   Constraints.reserve(NumOperands);
441   for (unsigned i = 0; i != NumOperands; ++i) {
442     Exprs.push_back(cast<Expr>(Record.readSubStmt()));
443     ConstraintsData.push_back(readString());
444     Constraints.push_back(ConstraintsData.back());
445   }
446 
447   S->initialize(Record.getContext(), AsmStr, AsmToks,
448                 Constraints, Exprs, Clobbers);
449 }
450 
451 void ASTStmtReader::VisitCoroutineBodyStmt(CoroutineBodyStmt *S) {
452   VisitStmt(S);
453   assert(Record.peekInt() == S->NumParams);
454   Record.skipInts(1);
455   auto *StoredStmts = S->getStoredStmts();
456   for (unsigned i = 0;
457        i < CoroutineBodyStmt::SubStmt::FirstParamMove + S->NumParams; ++i)
458     StoredStmts[i] = Record.readSubStmt();
459 }
460 
461 void ASTStmtReader::VisitCoreturnStmt(CoreturnStmt *S) {
462   VisitStmt(S);
463   S->CoreturnLoc = Record.readSourceLocation();
464   for (auto &SubStmt: S->SubStmts)
465     SubStmt = Record.readSubStmt();
466   S->IsImplicit = Record.readInt() != 0;
467 }
468 
469 void ASTStmtReader::VisitCoawaitExpr(CoawaitExpr *E) {
470   VisitExpr(E);
471   E->KeywordLoc = readSourceLocation();
472   for (auto &SubExpr: E->SubExprs)
473     SubExpr = Record.readSubStmt();
474   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
475   E->setIsImplicit(Record.readInt() != 0);
476 }
477 
478 void ASTStmtReader::VisitCoyieldExpr(CoyieldExpr *E) {
479   VisitExpr(E);
480   E->KeywordLoc = readSourceLocation();
481   for (auto &SubExpr: E->SubExprs)
482     SubExpr = Record.readSubStmt();
483   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
484 }
485 
486 void ASTStmtReader::VisitDependentCoawaitExpr(DependentCoawaitExpr *E) {
487   VisitExpr(E);
488   E->KeywordLoc = readSourceLocation();
489   for (auto &SubExpr: E->SubExprs)
490     SubExpr = Record.readSubStmt();
491 }
492 
493 void ASTStmtReader::VisitCapturedStmt(CapturedStmt *S) {
494   VisitStmt(S);
495   Record.skipInts(1);
496   S->setCapturedDecl(readDeclAs<CapturedDecl>());
497   S->setCapturedRegionKind(static_cast<CapturedRegionKind>(Record.readInt()));
498   S->setCapturedRecordDecl(readDeclAs<RecordDecl>());
499 
500   // Capture inits
501   for (CapturedStmt::capture_init_iterator I = S->capture_init_begin(),
502                                            E = S->capture_init_end();
503        I != E; ++I)
504     *I = Record.readSubExpr();
505 
506   // Body
507   S->setCapturedStmt(Record.readSubStmt());
508   S->getCapturedDecl()->setBody(S->getCapturedStmt());
509 
510   // Captures
511   for (auto &I : S->captures()) {
512     I.VarAndKind.setPointer(readDeclAs<VarDecl>());
513     I.VarAndKind.setInt(
514         static_cast<CapturedStmt::VariableCaptureKind>(Record.readInt()));
515     I.Loc = readSourceLocation();
516   }
517 }
518 
519 void ASTStmtReader::VisitExpr(Expr *E) {
520   VisitStmt(E);
521   E->setType(Record.readType());
522 
523   // FIXME: write and read all DependentFlags with a single call.
524   bool TypeDependent = Record.readInt();
525   bool ValueDependent = Record.readInt();
526   bool InstantiationDependent = Record.readInt();
527   bool ContainsUnexpandedTemplateParameters = Record.readInt();
528   bool ContainsErrors = Record.readInt();
529   auto Deps = ExprDependence::None;
530   if (TypeDependent)
531     Deps |= ExprDependence::Type;
532   if (ValueDependent)
533     Deps |= ExprDependence::Value;
534   if (InstantiationDependent)
535     Deps |= ExprDependence::Instantiation;
536   if (ContainsUnexpandedTemplateParameters)
537     Deps |= ExprDependence::UnexpandedPack;
538   if (ContainsErrors)
539     Deps |= ExprDependence::Error;
540   E->setDependence(Deps);
541 
542   E->setValueKind(static_cast<ExprValueKind>(Record.readInt()));
543   E->setObjectKind(static_cast<ExprObjectKind>(Record.readInt()));
544   assert(Record.getIdx() == NumExprFields &&
545          "Incorrect expression field count");
546 }
547 
548 void ASTStmtReader::VisitConstantExpr(ConstantExpr *E) {
549   VisitExpr(E);
550 
551   auto StorageKind = Record.readInt();
552   assert(E->ConstantExprBits.ResultKind == StorageKind && "Wrong ResultKind!");
553 
554   E->ConstantExprBits.APValueKind = Record.readInt();
555   E->ConstantExprBits.IsUnsigned = Record.readInt();
556   E->ConstantExprBits.BitWidth = Record.readInt();
557   E->ConstantExprBits.HasCleanup = false; // Not serialized, see below.
558   E->ConstantExprBits.IsImmediateInvocation = Record.readInt();
559 
560   switch (StorageKind) {
561   case ConstantExpr::RSK_None:
562     break;
563 
564   case ConstantExpr::RSK_Int64:
565     E->Int64Result() = Record.readInt();
566     break;
567 
568   case ConstantExpr::RSK_APValue:
569     E->APValueResult() = Record.readAPValue();
570     if (E->APValueResult().needsCleanup()) {
571       E->ConstantExprBits.HasCleanup = true;
572       Record.getContext().addDestruction(&E->APValueResult());
573     }
574     break;
575   default:
576     llvm_unreachable("unexpected ResultKind!");
577   }
578 
579   E->setSubExpr(Record.readSubExpr());
580 }
581 
582 void ASTStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
583   VisitExpr(E);
584   bool HasFunctionName = Record.readInt();
585   E->PredefinedExprBits.HasFunctionName = HasFunctionName;
586   E->PredefinedExprBits.Kind = Record.readInt();
587   E->setLocation(readSourceLocation());
588   if (HasFunctionName)
589     E->setFunctionName(cast<StringLiteral>(Record.readSubExpr()));
590 }
591 
592 void ASTStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
593   VisitExpr(E);
594 
595   E->DeclRefExprBits.HasQualifier = Record.readInt();
596   E->DeclRefExprBits.HasFoundDecl = Record.readInt();
597   E->DeclRefExprBits.HasTemplateKWAndArgsInfo = Record.readInt();
598   E->DeclRefExprBits.HadMultipleCandidates = Record.readInt();
599   E->DeclRefExprBits.RefersToEnclosingVariableOrCapture = Record.readInt();
600   E->DeclRefExprBits.NonOdrUseReason = Record.readInt();
601   unsigned NumTemplateArgs = 0;
602   if (E->hasTemplateKWAndArgsInfo())
603     NumTemplateArgs = Record.readInt();
604 
605   if (E->hasQualifier())
606     new (E->getTrailingObjects<NestedNameSpecifierLoc>())
607         NestedNameSpecifierLoc(Record.readNestedNameSpecifierLoc());
608 
609   if (E->hasFoundDecl())
610     *E->getTrailingObjects<NamedDecl *>() = readDeclAs<NamedDecl>();
611 
612   if (E->hasTemplateKWAndArgsInfo())
613     ReadTemplateKWAndArgsInfo(
614         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
615         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
616 
617   E->D = readDeclAs<ValueDecl>();
618   E->setLocation(readSourceLocation());
619   E->DNLoc = Record.readDeclarationNameLoc(E->getDecl()->getDeclName());
620 }
621 
622 void ASTStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
623   VisitExpr(E);
624   E->setLocation(readSourceLocation());
625   E->setValue(Record.getContext(), Record.readAPInt());
626 }
627 
628 void ASTStmtReader::VisitFixedPointLiteral(FixedPointLiteral *E) {
629   VisitExpr(E);
630   E->setLocation(readSourceLocation());
631   E->setScale(Record.readInt());
632   E->setValue(Record.getContext(), Record.readAPInt());
633 }
634 
635 void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
636   VisitExpr(E);
637   E->setRawSemantics(
638       static_cast<llvm::APFloatBase::Semantics>(Record.readInt()));
639   E->setExact(Record.readInt());
640   E->setValue(Record.getContext(), Record.readAPFloat(E->getSemantics()));
641   E->setLocation(readSourceLocation());
642 }
643 
644 void ASTStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
645   VisitExpr(E);
646   E->setSubExpr(Record.readSubExpr());
647 }
648 
649 void ASTStmtReader::VisitStringLiteral(StringLiteral *E) {
650   VisitExpr(E);
651 
652   // NumConcatenated, Length and CharByteWidth are set by the empty
653   // ctor since they are needed to allocate storage for the trailing objects.
654   unsigned NumConcatenated = Record.readInt();
655   unsigned Length = Record.readInt();
656   unsigned CharByteWidth = Record.readInt();
657   assert((NumConcatenated == E->getNumConcatenated()) &&
658          "Wrong number of concatenated tokens!");
659   assert((Length == E->getLength()) && "Wrong Length!");
660   assert((CharByteWidth == E->getCharByteWidth()) && "Wrong character width!");
661   E->StringLiteralBits.Kind = Record.readInt();
662   E->StringLiteralBits.IsPascal = Record.readInt();
663 
664   // The character width is originally computed via mapCharByteWidth.
665   // Check that the deserialized character width is consistant with the result
666   // of calling mapCharByteWidth.
667   assert((CharByteWidth ==
668           StringLiteral::mapCharByteWidth(Record.getContext().getTargetInfo(),
669                                           E->getKind())) &&
670          "Wrong character width!");
671 
672   // Deserialize the trailing array of SourceLocation.
673   for (unsigned I = 0; I < NumConcatenated; ++I)
674     E->setStrTokenLoc(I, readSourceLocation());
675 
676   // Deserialize the trailing array of char holding the string data.
677   char *StrData = E->getStrDataAsChar();
678   for (unsigned I = 0; I < Length * CharByteWidth; ++I)
679     StrData[I] = Record.readInt();
680 }
681 
682 void ASTStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
683   VisitExpr(E);
684   E->setValue(Record.readInt());
685   E->setLocation(readSourceLocation());
686   E->setKind(static_cast<CharacterLiteral::CharacterKind>(Record.readInt()));
687 }
688 
689 void ASTStmtReader::VisitParenExpr(ParenExpr *E) {
690   VisitExpr(E);
691   E->setLParen(readSourceLocation());
692   E->setRParen(readSourceLocation());
693   E->setSubExpr(Record.readSubExpr());
694 }
695 
696 void ASTStmtReader::VisitParenListExpr(ParenListExpr *E) {
697   VisitExpr(E);
698   unsigned NumExprs = Record.readInt();
699   assert((NumExprs == E->getNumExprs()) && "Wrong NumExprs!");
700   for (unsigned I = 0; I != NumExprs; ++I)
701     E->getTrailingObjects<Stmt *>()[I] = Record.readSubStmt();
702   E->LParenLoc = readSourceLocation();
703   E->RParenLoc = readSourceLocation();
704 }
705 
706 void ASTStmtReader::VisitUnaryOperator(UnaryOperator *E) {
707   VisitExpr(E);
708   bool hasFP_Features = Record.readInt();
709   assert(hasFP_Features == E->hasStoredFPFeatures());
710   E->setSubExpr(Record.readSubExpr());
711   E->setOpcode((UnaryOperator::Opcode)Record.readInt());
712   E->setOperatorLoc(readSourceLocation());
713   E->setCanOverflow(Record.readInt());
714   if (hasFP_Features)
715     E->setStoredFPFeatures(
716         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
717 }
718 
719 void ASTStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
720   VisitExpr(E);
721   assert(E->getNumComponents() == Record.peekInt());
722   Record.skipInts(1);
723   assert(E->getNumExpressions() == Record.peekInt());
724   Record.skipInts(1);
725   E->setOperatorLoc(readSourceLocation());
726   E->setRParenLoc(readSourceLocation());
727   E->setTypeSourceInfo(readTypeSourceInfo());
728   for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
729     auto Kind = static_cast<OffsetOfNode::Kind>(Record.readInt());
730     SourceLocation Start = readSourceLocation();
731     SourceLocation End = readSourceLocation();
732     switch (Kind) {
733     case OffsetOfNode::Array:
734       E->setComponent(I, OffsetOfNode(Start, Record.readInt(), End));
735       break;
736 
737     case OffsetOfNode::Field:
738       E->setComponent(
739           I, OffsetOfNode(Start, readDeclAs<FieldDecl>(), End));
740       break;
741 
742     case OffsetOfNode::Identifier:
743       E->setComponent(
744           I,
745           OffsetOfNode(Start, Record.readIdentifier(), End));
746       break;
747 
748     case OffsetOfNode::Base: {
749       auto *Base = new (Record.getContext()) CXXBaseSpecifier();
750       *Base = Record.readCXXBaseSpecifier();
751       E->setComponent(I, OffsetOfNode(Base));
752       break;
753     }
754     }
755   }
756 
757   for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
758     E->setIndexExpr(I, Record.readSubExpr());
759 }
760 
761 void ASTStmtReader::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E) {
762   VisitExpr(E);
763   E->setKind(static_cast<UnaryExprOrTypeTrait>(Record.readInt()));
764   if (Record.peekInt() == 0) {
765     E->setArgument(Record.readSubExpr());
766     Record.skipInts(1);
767   } else {
768     E->setArgument(readTypeSourceInfo());
769   }
770   E->setOperatorLoc(readSourceLocation());
771   E->setRParenLoc(readSourceLocation());
772 }
773 
774 static ConstraintSatisfaction
775 readConstraintSatisfaction(ASTRecordReader &Record) {
776   ConstraintSatisfaction Satisfaction;
777   Satisfaction.IsSatisfied = Record.readInt();
778   if (!Satisfaction.IsSatisfied) {
779     unsigned NumDetailRecords = Record.readInt();
780     for (unsigned i = 0; i != NumDetailRecords; ++i) {
781       Expr *ConstraintExpr = Record.readExpr();
782       if (/* IsDiagnostic */Record.readInt()) {
783         SourceLocation DiagLocation = Record.readSourceLocation();
784         std::string DiagMessage = Record.readString();
785         Satisfaction.Details.emplace_back(
786             ConstraintExpr, new (Record.getContext())
787                                 ConstraintSatisfaction::SubstitutionDiagnostic{
788                                     DiagLocation, DiagMessage});
789       } else
790         Satisfaction.Details.emplace_back(ConstraintExpr, Record.readExpr());
791     }
792   }
793   return Satisfaction;
794 }
795 
796 void ASTStmtReader::VisitConceptSpecializationExpr(
797         ConceptSpecializationExpr *E) {
798   VisitExpr(E);
799   unsigned NumTemplateArgs = Record.readInt();
800   E->NestedNameSpec = Record.readNestedNameSpecifierLoc();
801   E->TemplateKWLoc = Record.readSourceLocation();
802   E->ConceptName = Record.readDeclarationNameInfo();
803   E->NamedConcept = readDeclAs<ConceptDecl>();
804   E->FoundDecl = Record.readDeclAs<NamedDecl>();
805   E->ArgsAsWritten = Record.readASTTemplateArgumentListInfo();
806   llvm::SmallVector<TemplateArgument, 4> Args;
807   for (unsigned I = 0; I < NumTemplateArgs; ++I)
808     Args.push_back(Record.readTemplateArgument());
809   E->setTemplateArguments(Args);
810   E->Satisfaction = E->isValueDependent() ? nullptr :
811       ASTConstraintSatisfaction::Create(Record.getContext(),
812                                         readConstraintSatisfaction(Record));
813 }
814 
815 static concepts::Requirement::SubstitutionDiagnostic *
816 readSubstitutionDiagnostic(ASTRecordReader &Record) {
817   std::string SubstitutedEntity = Record.readString();
818   SourceLocation DiagLoc = Record.readSourceLocation();
819   std::string DiagMessage = Record.readString();
820   return new (Record.getContext())
821       concepts::Requirement::SubstitutionDiagnostic{SubstitutedEntity, DiagLoc,
822                                                     DiagMessage};
823 }
824 
825 void ASTStmtReader::VisitRequiresExpr(RequiresExpr *E) {
826   VisitExpr(E);
827   unsigned NumLocalParameters = Record.readInt();
828   unsigned NumRequirements = Record.readInt();
829   E->RequiresExprBits.RequiresKWLoc = Record.readSourceLocation();
830   E->RequiresExprBits.IsSatisfied = Record.readInt();
831   E->Body = Record.readDeclAs<RequiresExprBodyDecl>();
832   llvm::SmallVector<ParmVarDecl *, 4> LocalParameters;
833   for (unsigned i = 0; i < NumLocalParameters; ++i)
834     LocalParameters.push_back(cast<ParmVarDecl>(Record.readDecl()));
835   std::copy(LocalParameters.begin(), LocalParameters.end(),
836             E->getTrailingObjects<ParmVarDecl *>());
837   llvm::SmallVector<concepts::Requirement *, 4> Requirements;
838   for (unsigned i = 0; i < NumRequirements; ++i) {
839     auto RK =
840         static_cast<concepts::Requirement::RequirementKind>(Record.readInt());
841     concepts::Requirement *R = nullptr;
842     switch (RK) {
843       case concepts::Requirement::RK_Type: {
844         auto Status =
845             static_cast<concepts::TypeRequirement::SatisfactionStatus>(
846                 Record.readInt());
847         if (Status == concepts::TypeRequirement::SS_SubstitutionFailure)
848           R = new (Record.getContext())
849               concepts::TypeRequirement(readSubstitutionDiagnostic(Record));
850         else
851           R = new (Record.getContext())
852               concepts::TypeRequirement(Record.readTypeSourceInfo());
853       } break;
854       case concepts::Requirement::RK_Simple:
855       case concepts::Requirement::RK_Compound: {
856         auto Status =
857             static_cast<concepts::ExprRequirement::SatisfactionStatus>(
858                 Record.readInt());
859         llvm::PointerUnion<concepts::Requirement::SubstitutionDiagnostic *,
860                            Expr *> E;
861         if (Status == concepts::ExprRequirement::SS_ExprSubstitutionFailure) {
862           E = readSubstitutionDiagnostic(Record);
863         } else
864           E = Record.readExpr();
865 
866         llvm::Optional<concepts::ExprRequirement::ReturnTypeRequirement> Req;
867         ConceptSpecializationExpr *SubstitutedConstraintExpr = nullptr;
868         SourceLocation NoexceptLoc;
869         if (RK == concepts::Requirement::RK_Simple) {
870           Req.emplace();
871         } else {
872           NoexceptLoc = Record.readSourceLocation();
873           switch (/* returnTypeRequirementKind */Record.readInt()) {
874             case 0:
875               // No return type requirement.
876               Req.emplace();
877               break;
878             case 1: {
879               // type-constraint
880               TemplateParameterList *TPL = Record.readTemplateParameterList();
881               if (Status >=
882                   concepts::ExprRequirement::SS_ConstraintsNotSatisfied)
883                 SubstitutedConstraintExpr =
884                     cast<ConceptSpecializationExpr>(Record.readExpr());
885               Req.emplace(TPL);
886             } break;
887             case 2:
888               // Substitution failure
889               Req.emplace(readSubstitutionDiagnostic(Record));
890               break;
891           }
892         }
893         if (Expr *Ex = E.dyn_cast<Expr *>())
894           R = new (Record.getContext()) concepts::ExprRequirement(
895                   Ex, RK == concepts::Requirement::RK_Simple, NoexceptLoc,
896                   std::move(*Req), Status, SubstitutedConstraintExpr);
897         else
898           R = new (Record.getContext()) concepts::ExprRequirement(
899                   E.get<concepts::Requirement::SubstitutionDiagnostic *>(),
900                   RK == concepts::Requirement::RK_Simple, NoexceptLoc,
901                   std::move(*Req));
902       } break;
903       case concepts::Requirement::RK_Nested: {
904         if (/* IsSubstitutionDiagnostic */Record.readInt()) {
905           R = new (Record.getContext()) concepts::NestedRequirement(
906               readSubstitutionDiagnostic(Record));
907           break;
908         }
909         Expr *E = Record.readExpr();
910         if (E->isInstantiationDependent())
911           R = new (Record.getContext()) concepts::NestedRequirement(E);
912         else
913           R = new (Record.getContext())
914               concepts::NestedRequirement(Record.getContext(), E,
915                                           readConstraintSatisfaction(Record));
916       } break;
917     }
918     if (!R)
919       continue;
920     Requirements.push_back(R);
921   }
922   std::copy(Requirements.begin(), Requirements.end(),
923             E->getTrailingObjects<concepts::Requirement *>());
924   E->RBraceLoc = Record.readSourceLocation();
925 }
926 
927 void ASTStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
928   VisitExpr(E);
929   E->setLHS(Record.readSubExpr());
930   E->setRHS(Record.readSubExpr());
931   E->setRBracketLoc(readSourceLocation());
932 }
933 
934 void ASTStmtReader::VisitMatrixSubscriptExpr(MatrixSubscriptExpr *E) {
935   VisitExpr(E);
936   E->setBase(Record.readSubExpr());
937   E->setRowIdx(Record.readSubExpr());
938   E->setColumnIdx(Record.readSubExpr());
939   E->setRBracketLoc(readSourceLocation());
940 }
941 
942 void ASTStmtReader::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
943   VisitExpr(E);
944   E->setBase(Record.readSubExpr());
945   E->setLowerBound(Record.readSubExpr());
946   E->setLength(Record.readSubExpr());
947   E->setStride(Record.readSubExpr());
948   E->setColonLocFirst(readSourceLocation());
949   E->setColonLocSecond(readSourceLocation());
950   E->setRBracketLoc(readSourceLocation());
951 }
952 
953 void ASTStmtReader::VisitOMPArrayShapingExpr(OMPArrayShapingExpr *E) {
954   VisitExpr(E);
955   unsigned NumDims = Record.readInt();
956   E->setBase(Record.readSubExpr());
957   SmallVector<Expr *, 4> Dims(NumDims);
958   for (unsigned I = 0; I < NumDims; ++I)
959     Dims[I] = Record.readSubExpr();
960   E->setDimensions(Dims);
961   SmallVector<SourceRange, 4> SRs(NumDims);
962   for (unsigned I = 0; I < NumDims; ++I)
963     SRs[I] = readSourceRange();
964   E->setBracketsRanges(SRs);
965   E->setLParenLoc(readSourceLocation());
966   E->setRParenLoc(readSourceLocation());
967 }
968 
969 void ASTStmtReader::VisitOMPIteratorExpr(OMPIteratorExpr *E) {
970   VisitExpr(E);
971   unsigned NumIters = Record.readInt();
972   E->setIteratorKwLoc(readSourceLocation());
973   E->setLParenLoc(readSourceLocation());
974   E->setRParenLoc(readSourceLocation());
975   for (unsigned I = 0; I < NumIters; ++I) {
976     E->setIteratorDeclaration(I, Record.readDeclRef());
977     E->setAssignmentLoc(I, readSourceLocation());
978     Expr *Begin = Record.readSubExpr();
979     Expr *End = Record.readSubExpr();
980     Expr *Step = Record.readSubExpr();
981     SourceLocation ColonLoc = readSourceLocation();
982     SourceLocation SecColonLoc;
983     if (Step)
984       SecColonLoc = readSourceLocation();
985     E->setIteratorRange(I, Begin, ColonLoc, End, SecColonLoc, Step);
986     // Deserialize helpers
987     OMPIteratorHelperData HD;
988     HD.CounterVD = cast_or_null<VarDecl>(Record.readDeclRef());
989     HD.Upper = Record.readSubExpr();
990     HD.Update = Record.readSubExpr();
991     HD.CounterUpdate = Record.readSubExpr();
992     E->setHelper(I, HD);
993   }
994 }
995 
996 void ASTStmtReader::VisitCallExpr(CallExpr *E) {
997   VisitExpr(E);
998   unsigned NumArgs = Record.readInt();
999   bool HasFPFeatures = Record.readInt();
1000   assert((NumArgs == E->getNumArgs()) && "Wrong NumArgs!");
1001   E->setRParenLoc(readSourceLocation());
1002   E->setCallee(Record.readSubExpr());
1003   for (unsigned I = 0; I != NumArgs; ++I)
1004     E->setArg(I, Record.readSubExpr());
1005   E->setADLCallKind(static_cast<CallExpr::ADLCallKind>(Record.readInt()));
1006   if (HasFPFeatures)
1007     E->setStoredFPFeatures(
1008         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
1009 }
1010 
1011 void ASTStmtReader::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
1012   VisitCallExpr(E);
1013 }
1014 
1015 void ASTStmtReader::VisitMemberExpr(MemberExpr *E) {
1016   VisitExpr(E);
1017 
1018   bool HasQualifier = Record.readInt();
1019   bool HasFoundDecl = Record.readInt();
1020   bool HasTemplateInfo = Record.readInt();
1021   unsigned NumTemplateArgs = Record.readInt();
1022 
1023   E->Base = Record.readSubExpr();
1024   E->MemberDecl = Record.readDeclAs<ValueDecl>();
1025   E->MemberDNLoc = Record.readDeclarationNameLoc(E->MemberDecl->getDeclName());
1026   E->MemberLoc = Record.readSourceLocation();
1027   E->MemberExprBits.IsArrow = Record.readInt();
1028   E->MemberExprBits.HasQualifierOrFoundDecl = HasQualifier || HasFoundDecl;
1029   E->MemberExprBits.HasTemplateKWAndArgsInfo = HasTemplateInfo;
1030   E->MemberExprBits.HadMultipleCandidates = Record.readInt();
1031   E->MemberExprBits.NonOdrUseReason = Record.readInt();
1032   E->MemberExprBits.OperatorLoc = Record.readSourceLocation();
1033 
1034   if (HasQualifier || HasFoundDecl) {
1035     DeclAccessPair FoundDecl;
1036     if (HasFoundDecl) {
1037       auto *FoundD = Record.readDeclAs<NamedDecl>();
1038       auto AS = (AccessSpecifier)Record.readInt();
1039       FoundDecl = DeclAccessPair::make(FoundD, AS);
1040     } else {
1041       FoundDecl = DeclAccessPair::make(E->MemberDecl,
1042                                        E->MemberDecl->getAccess());
1043     }
1044     E->getTrailingObjects<MemberExprNameQualifier>()->FoundDecl = FoundDecl;
1045 
1046     NestedNameSpecifierLoc QualifierLoc;
1047     if (HasQualifier)
1048       QualifierLoc = Record.readNestedNameSpecifierLoc();
1049     E->getTrailingObjects<MemberExprNameQualifier>()->QualifierLoc =
1050         QualifierLoc;
1051   }
1052 
1053   if (HasTemplateInfo)
1054     ReadTemplateKWAndArgsInfo(
1055         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1056         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
1057 }
1058 
1059 void ASTStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
1060   VisitExpr(E);
1061   E->setBase(Record.readSubExpr());
1062   E->setIsaMemberLoc(readSourceLocation());
1063   E->setOpLoc(readSourceLocation());
1064   E->setArrow(Record.readInt());
1065 }
1066 
1067 void ASTStmtReader::
1068 VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
1069   VisitExpr(E);
1070   E->Operand = Record.readSubExpr();
1071   E->setShouldCopy(Record.readInt());
1072 }
1073 
1074 void ASTStmtReader::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
1075   VisitExplicitCastExpr(E);
1076   E->LParenLoc = readSourceLocation();
1077   E->BridgeKeywordLoc = readSourceLocation();
1078   E->Kind = Record.readInt();
1079 }
1080 
1081 void ASTStmtReader::VisitCastExpr(CastExpr *E) {
1082   VisitExpr(E);
1083   unsigned NumBaseSpecs = Record.readInt();
1084   assert(NumBaseSpecs == E->path_size());
1085   unsigned HasFPFeatures = Record.readInt();
1086   assert(E->hasStoredFPFeatures() == HasFPFeatures);
1087   E->setSubExpr(Record.readSubExpr());
1088   E->setCastKind((CastKind)Record.readInt());
1089   CastExpr::path_iterator BaseI = E->path_begin();
1090   while (NumBaseSpecs--) {
1091     auto *BaseSpec = new (Record.getContext()) CXXBaseSpecifier;
1092     *BaseSpec = Record.readCXXBaseSpecifier();
1093     *BaseI++ = BaseSpec;
1094   }
1095   if (HasFPFeatures)
1096     *E->getTrailingFPFeatures() =
1097         FPOptionsOverride::getFromOpaqueInt(Record.readInt());
1098 }
1099 
1100 void ASTStmtReader::VisitBinaryOperator(BinaryOperator *E) {
1101   bool hasFP_Features;
1102   BinaryOperator::Opcode opc;
1103   VisitExpr(E);
1104   E->setHasStoredFPFeatures(hasFP_Features = Record.readInt());
1105   E->setOpcode(opc = (BinaryOperator::Opcode)Record.readInt());
1106   E->setLHS(Record.readSubExpr());
1107   E->setRHS(Record.readSubExpr());
1108   E->setOperatorLoc(readSourceLocation());
1109   if (hasFP_Features)
1110     E->setStoredFPFeatures(
1111         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
1112 }
1113 
1114 void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
1115   VisitBinaryOperator(E);
1116   E->setComputationLHSType(Record.readType());
1117   E->setComputationResultType(Record.readType());
1118 }
1119 
1120 void ASTStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
1121   VisitExpr(E);
1122   E->SubExprs[ConditionalOperator::COND] = Record.readSubExpr();
1123   E->SubExprs[ConditionalOperator::LHS] = Record.readSubExpr();
1124   E->SubExprs[ConditionalOperator::RHS] = Record.readSubExpr();
1125   E->QuestionLoc = readSourceLocation();
1126   E->ColonLoc = readSourceLocation();
1127 }
1128 
1129 void
1130 ASTStmtReader::VisitBinaryConditionalOperator(BinaryConditionalOperator *E) {
1131   VisitExpr(E);
1132   E->OpaqueValue = cast<OpaqueValueExpr>(Record.readSubExpr());
1133   E->SubExprs[BinaryConditionalOperator::COMMON] = Record.readSubExpr();
1134   E->SubExprs[BinaryConditionalOperator::COND] = Record.readSubExpr();
1135   E->SubExprs[BinaryConditionalOperator::LHS] = Record.readSubExpr();
1136   E->SubExprs[BinaryConditionalOperator::RHS] = Record.readSubExpr();
1137   E->QuestionLoc = readSourceLocation();
1138   E->ColonLoc = readSourceLocation();
1139 }
1140 
1141 void ASTStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
1142   VisitCastExpr(E);
1143   E->setIsPartOfExplicitCast(Record.readInt());
1144 }
1145 
1146 void ASTStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
1147   VisitCastExpr(E);
1148   E->setTypeInfoAsWritten(readTypeSourceInfo());
1149 }
1150 
1151 void ASTStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
1152   VisitExplicitCastExpr(E);
1153   E->setLParenLoc(readSourceLocation());
1154   E->setRParenLoc(readSourceLocation());
1155 }
1156 
1157 void ASTStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
1158   VisitExpr(E);
1159   E->setLParenLoc(readSourceLocation());
1160   E->setTypeSourceInfo(readTypeSourceInfo());
1161   E->setInitializer(Record.readSubExpr());
1162   E->setFileScope(Record.readInt());
1163 }
1164 
1165 void ASTStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
1166   VisitExpr(E);
1167   E->setBase(Record.readSubExpr());
1168   E->setAccessor(Record.readIdentifier());
1169   E->setAccessorLoc(readSourceLocation());
1170 }
1171 
1172 void ASTStmtReader::VisitInitListExpr(InitListExpr *E) {
1173   VisitExpr(E);
1174   if (auto *SyntForm = cast_or_null<InitListExpr>(Record.readSubStmt()))
1175     E->setSyntacticForm(SyntForm);
1176   E->setLBraceLoc(readSourceLocation());
1177   E->setRBraceLoc(readSourceLocation());
1178   bool isArrayFiller = Record.readInt();
1179   Expr *filler = nullptr;
1180   if (isArrayFiller) {
1181     filler = Record.readSubExpr();
1182     E->ArrayFillerOrUnionFieldInit = filler;
1183   } else
1184     E->ArrayFillerOrUnionFieldInit = readDeclAs<FieldDecl>();
1185   E->sawArrayRangeDesignator(Record.readInt());
1186   unsigned NumInits = Record.readInt();
1187   E->reserveInits(Record.getContext(), NumInits);
1188   if (isArrayFiller) {
1189     for (unsigned I = 0; I != NumInits; ++I) {
1190       Expr *init = Record.readSubExpr();
1191       E->updateInit(Record.getContext(), I, init ? init : filler);
1192     }
1193   } else {
1194     for (unsigned I = 0; I != NumInits; ++I)
1195       E->updateInit(Record.getContext(), I, Record.readSubExpr());
1196   }
1197 }
1198 
1199 void ASTStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
1200   using Designator = DesignatedInitExpr::Designator;
1201 
1202   VisitExpr(E);
1203   unsigned NumSubExprs = Record.readInt();
1204   assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
1205   for (unsigned I = 0; I != NumSubExprs; ++I)
1206     E->setSubExpr(I, Record.readSubExpr());
1207   E->setEqualOrColonLoc(readSourceLocation());
1208   E->setGNUSyntax(Record.readInt());
1209 
1210   SmallVector<Designator, 4> Designators;
1211   while (Record.getIdx() < Record.size()) {
1212     switch ((DesignatorTypes)Record.readInt()) {
1213     case DESIG_FIELD_DECL: {
1214       auto *Field = readDeclAs<FieldDecl>();
1215       SourceLocation DotLoc = readSourceLocation();
1216       SourceLocation FieldLoc = readSourceLocation();
1217       Designators.push_back(Designator(Field->getIdentifier(), DotLoc,
1218                                        FieldLoc));
1219       Designators.back().setField(Field);
1220       break;
1221     }
1222 
1223     case DESIG_FIELD_NAME: {
1224       const IdentifierInfo *Name = Record.readIdentifier();
1225       SourceLocation DotLoc = readSourceLocation();
1226       SourceLocation FieldLoc = readSourceLocation();
1227       Designators.push_back(Designator(Name, DotLoc, FieldLoc));
1228       break;
1229     }
1230 
1231     case DESIG_ARRAY: {
1232       unsigned Index = Record.readInt();
1233       SourceLocation LBracketLoc = readSourceLocation();
1234       SourceLocation RBracketLoc = readSourceLocation();
1235       Designators.push_back(Designator(Index, LBracketLoc, RBracketLoc));
1236       break;
1237     }
1238 
1239     case DESIG_ARRAY_RANGE: {
1240       unsigned Index = Record.readInt();
1241       SourceLocation LBracketLoc = readSourceLocation();
1242       SourceLocation EllipsisLoc = readSourceLocation();
1243       SourceLocation RBracketLoc = readSourceLocation();
1244       Designators.push_back(Designator(Index, LBracketLoc, EllipsisLoc,
1245                                        RBracketLoc));
1246       break;
1247     }
1248     }
1249   }
1250   E->setDesignators(Record.getContext(),
1251                     Designators.data(), Designators.size());
1252 }
1253 
1254 void ASTStmtReader::VisitDesignatedInitUpdateExpr(DesignatedInitUpdateExpr *E) {
1255   VisitExpr(E);
1256   E->setBase(Record.readSubExpr());
1257   E->setUpdater(Record.readSubExpr());
1258 }
1259 
1260 void ASTStmtReader::VisitNoInitExpr(NoInitExpr *E) {
1261   VisitExpr(E);
1262 }
1263 
1264 void ASTStmtReader::VisitArrayInitLoopExpr(ArrayInitLoopExpr *E) {
1265   VisitExpr(E);
1266   E->SubExprs[0] = Record.readSubExpr();
1267   E->SubExprs[1] = Record.readSubExpr();
1268 }
1269 
1270 void ASTStmtReader::VisitArrayInitIndexExpr(ArrayInitIndexExpr *E) {
1271   VisitExpr(E);
1272 }
1273 
1274 void ASTStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
1275   VisitExpr(E);
1276 }
1277 
1278 void ASTStmtReader::VisitVAArgExpr(VAArgExpr *E) {
1279   VisitExpr(E);
1280   E->setSubExpr(Record.readSubExpr());
1281   E->setWrittenTypeInfo(readTypeSourceInfo());
1282   E->setBuiltinLoc(readSourceLocation());
1283   E->setRParenLoc(readSourceLocation());
1284   E->setIsMicrosoftABI(Record.readInt());
1285 }
1286 
1287 void ASTStmtReader::VisitSourceLocExpr(SourceLocExpr *E) {
1288   VisitExpr(E);
1289   E->ParentContext = readDeclAs<DeclContext>();
1290   E->BuiltinLoc = readSourceLocation();
1291   E->RParenLoc = readSourceLocation();
1292   E->SourceLocExprBits.Kind =
1293       static_cast<SourceLocExpr::IdentKind>(Record.readInt());
1294 }
1295 
1296 void ASTStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
1297   VisitExpr(E);
1298   E->setAmpAmpLoc(readSourceLocation());
1299   E->setLabelLoc(readSourceLocation());
1300   E->setLabel(readDeclAs<LabelDecl>());
1301 }
1302 
1303 void ASTStmtReader::VisitStmtExpr(StmtExpr *E) {
1304   VisitExpr(E);
1305   E->setLParenLoc(readSourceLocation());
1306   E->setRParenLoc(readSourceLocation());
1307   E->setSubStmt(cast_or_null<CompoundStmt>(Record.readSubStmt()));
1308   E->StmtExprBits.TemplateDepth = Record.readInt();
1309 }
1310 
1311 void ASTStmtReader::VisitChooseExpr(ChooseExpr *E) {
1312   VisitExpr(E);
1313   E->setCond(Record.readSubExpr());
1314   E->setLHS(Record.readSubExpr());
1315   E->setRHS(Record.readSubExpr());
1316   E->setBuiltinLoc(readSourceLocation());
1317   E->setRParenLoc(readSourceLocation());
1318   E->setIsConditionTrue(Record.readInt());
1319 }
1320 
1321 void ASTStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
1322   VisitExpr(E);
1323   E->setTokenLocation(readSourceLocation());
1324 }
1325 
1326 void ASTStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
1327   VisitExpr(E);
1328   SmallVector<Expr *, 16> Exprs;
1329   unsigned NumExprs = Record.readInt();
1330   while (NumExprs--)
1331     Exprs.push_back(Record.readSubExpr());
1332   E->setExprs(Record.getContext(), Exprs);
1333   E->setBuiltinLoc(readSourceLocation());
1334   E->setRParenLoc(readSourceLocation());
1335 }
1336 
1337 void ASTStmtReader::VisitConvertVectorExpr(ConvertVectorExpr *E) {
1338   VisitExpr(E);
1339   E->BuiltinLoc = readSourceLocation();
1340   E->RParenLoc = readSourceLocation();
1341   E->TInfo = readTypeSourceInfo();
1342   E->SrcExpr = Record.readSubExpr();
1343 }
1344 
1345 void ASTStmtReader::VisitBlockExpr(BlockExpr *E) {
1346   VisitExpr(E);
1347   E->setBlockDecl(readDeclAs<BlockDecl>());
1348 }
1349 
1350 void ASTStmtReader::VisitGenericSelectionExpr(GenericSelectionExpr *E) {
1351   VisitExpr(E);
1352 
1353   unsigned NumAssocs = Record.readInt();
1354   assert(NumAssocs == E->getNumAssocs() && "Wrong NumAssocs!");
1355   E->ResultIndex = Record.readInt();
1356   E->GenericSelectionExprBits.GenericLoc = readSourceLocation();
1357   E->DefaultLoc = readSourceLocation();
1358   E->RParenLoc = readSourceLocation();
1359 
1360   Stmt **Stmts = E->getTrailingObjects<Stmt *>();
1361   // Add 1 to account for the controlling expression which is the first
1362   // expression in the trailing array of Stmt *. This is not needed for
1363   // the trailing array of TypeSourceInfo *.
1364   for (unsigned I = 0, N = NumAssocs + 1; I < N; ++I)
1365     Stmts[I] = Record.readSubExpr();
1366 
1367   TypeSourceInfo **TSIs = E->getTrailingObjects<TypeSourceInfo *>();
1368   for (unsigned I = 0, N = NumAssocs; I < N; ++I)
1369     TSIs[I] = readTypeSourceInfo();
1370 }
1371 
1372 void ASTStmtReader::VisitPseudoObjectExpr(PseudoObjectExpr *E) {
1373   VisitExpr(E);
1374   unsigned numSemanticExprs = Record.readInt();
1375   assert(numSemanticExprs + 1 == E->PseudoObjectExprBits.NumSubExprs);
1376   E->PseudoObjectExprBits.ResultIndex = Record.readInt();
1377 
1378   // Read the syntactic expression.
1379   E->getSubExprsBuffer()[0] = Record.readSubExpr();
1380 
1381   // Read all the semantic expressions.
1382   for (unsigned i = 0; i != numSemanticExprs; ++i) {
1383     Expr *subExpr = Record.readSubExpr();
1384     E->getSubExprsBuffer()[i+1] = subExpr;
1385   }
1386 }
1387 
1388 void ASTStmtReader::VisitAtomicExpr(AtomicExpr *E) {
1389   VisitExpr(E);
1390   E->Op = AtomicExpr::AtomicOp(Record.readInt());
1391   E->NumSubExprs = AtomicExpr::getNumSubExprs(E->Op);
1392   for (unsigned I = 0; I != E->NumSubExprs; ++I)
1393     E->SubExprs[I] = Record.readSubExpr();
1394   E->BuiltinLoc = readSourceLocation();
1395   E->RParenLoc = readSourceLocation();
1396 }
1397 
1398 //===----------------------------------------------------------------------===//
1399 // Objective-C Expressions and Statements
1400 
1401 void ASTStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
1402   VisitExpr(E);
1403   E->setString(cast<StringLiteral>(Record.readSubStmt()));
1404   E->setAtLoc(readSourceLocation());
1405 }
1406 
1407 void ASTStmtReader::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
1408   VisitExpr(E);
1409   // could be one of several IntegerLiteral, FloatLiteral, etc.
1410   E->SubExpr = Record.readSubStmt();
1411   E->BoxingMethod = readDeclAs<ObjCMethodDecl>();
1412   E->Range = readSourceRange();
1413 }
1414 
1415 void ASTStmtReader::VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
1416   VisitExpr(E);
1417   unsigned NumElements = Record.readInt();
1418   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1419   Expr **Elements = E->getElements();
1420   for (unsigned I = 0, N = NumElements; I != N; ++I)
1421     Elements[I] = Record.readSubExpr();
1422   E->ArrayWithObjectsMethod = readDeclAs<ObjCMethodDecl>();
1423   E->Range = readSourceRange();
1424 }
1425 
1426 void ASTStmtReader::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
1427   VisitExpr(E);
1428   unsigned NumElements = Record.readInt();
1429   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1430   bool HasPackExpansions = Record.readInt();
1431   assert(HasPackExpansions == E->HasPackExpansions &&"Pack expansion mismatch");
1432   auto *KeyValues =
1433       E->getTrailingObjects<ObjCDictionaryLiteral::KeyValuePair>();
1434   auto *Expansions =
1435       E->getTrailingObjects<ObjCDictionaryLiteral::ExpansionData>();
1436   for (unsigned I = 0; I != NumElements; ++I) {
1437     KeyValues[I].Key = Record.readSubExpr();
1438     KeyValues[I].Value = Record.readSubExpr();
1439     if (HasPackExpansions) {
1440       Expansions[I].EllipsisLoc = readSourceLocation();
1441       Expansions[I].NumExpansionsPlusOne = Record.readInt();
1442     }
1443   }
1444   E->DictWithObjectsMethod = readDeclAs<ObjCMethodDecl>();
1445   E->Range = readSourceRange();
1446 }
1447 
1448 void ASTStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
1449   VisitExpr(E);
1450   E->setEncodedTypeSourceInfo(readTypeSourceInfo());
1451   E->setAtLoc(readSourceLocation());
1452   E->setRParenLoc(readSourceLocation());
1453 }
1454 
1455 void ASTStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
1456   VisitExpr(E);
1457   E->setSelector(Record.readSelector());
1458   E->setAtLoc(readSourceLocation());
1459   E->setRParenLoc(readSourceLocation());
1460 }
1461 
1462 void ASTStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
1463   VisitExpr(E);
1464   E->setProtocol(readDeclAs<ObjCProtocolDecl>());
1465   E->setAtLoc(readSourceLocation());
1466   E->ProtoLoc = readSourceLocation();
1467   E->setRParenLoc(readSourceLocation());
1468 }
1469 
1470 void ASTStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
1471   VisitExpr(E);
1472   E->setDecl(readDeclAs<ObjCIvarDecl>());
1473   E->setLocation(readSourceLocation());
1474   E->setOpLoc(readSourceLocation());
1475   E->setBase(Record.readSubExpr());
1476   E->setIsArrow(Record.readInt());
1477   E->setIsFreeIvar(Record.readInt());
1478 }
1479 
1480 void ASTStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
1481   VisitExpr(E);
1482   unsigned MethodRefFlags = Record.readInt();
1483   bool Implicit = Record.readInt() != 0;
1484   if (Implicit) {
1485     auto *Getter = readDeclAs<ObjCMethodDecl>();
1486     auto *Setter = readDeclAs<ObjCMethodDecl>();
1487     E->setImplicitProperty(Getter, Setter, MethodRefFlags);
1488   } else {
1489     E->setExplicitProperty(readDeclAs<ObjCPropertyDecl>(), MethodRefFlags);
1490   }
1491   E->setLocation(readSourceLocation());
1492   E->setReceiverLocation(readSourceLocation());
1493   switch (Record.readInt()) {
1494   case 0:
1495     E->setBase(Record.readSubExpr());
1496     break;
1497   case 1:
1498     E->setSuperReceiver(Record.readType());
1499     break;
1500   case 2:
1501     E->setClassReceiver(readDeclAs<ObjCInterfaceDecl>());
1502     break;
1503   }
1504 }
1505 
1506 void ASTStmtReader::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
1507   VisitExpr(E);
1508   E->setRBracket(readSourceLocation());
1509   E->setBaseExpr(Record.readSubExpr());
1510   E->setKeyExpr(Record.readSubExpr());
1511   E->GetAtIndexMethodDecl = readDeclAs<ObjCMethodDecl>();
1512   E->SetAtIndexMethodDecl = readDeclAs<ObjCMethodDecl>();
1513 }
1514 
1515 void ASTStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
1516   VisitExpr(E);
1517   assert(Record.peekInt() == E->getNumArgs());
1518   Record.skipInts(1);
1519   unsigned NumStoredSelLocs = Record.readInt();
1520   E->SelLocsKind = Record.readInt();
1521   E->setDelegateInitCall(Record.readInt());
1522   E->IsImplicit = Record.readInt();
1523   auto Kind = static_cast<ObjCMessageExpr::ReceiverKind>(Record.readInt());
1524   switch (Kind) {
1525   case ObjCMessageExpr::Instance:
1526     E->setInstanceReceiver(Record.readSubExpr());
1527     break;
1528 
1529   case ObjCMessageExpr::Class:
1530     E->setClassReceiver(readTypeSourceInfo());
1531     break;
1532 
1533   case ObjCMessageExpr::SuperClass:
1534   case ObjCMessageExpr::SuperInstance: {
1535     QualType T = Record.readType();
1536     SourceLocation SuperLoc = readSourceLocation();
1537     E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
1538     break;
1539   }
1540   }
1541 
1542   assert(Kind == E->getReceiverKind());
1543 
1544   if (Record.readInt())
1545     E->setMethodDecl(readDeclAs<ObjCMethodDecl>());
1546   else
1547     E->setSelector(Record.readSelector());
1548 
1549   E->LBracLoc = readSourceLocation();
1550   E->RBracLoc = readSourceLocation();
1551 
1552   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1553     E->setArg(I, Record.readSubExpr());
1554 
1555   SourceLocation *Locs = E->getStoredSelLocs();
1556   for (unsigned I = 0; I != NumStoredSelLocs; ++I)
1557     Locs[I] = readSourceLocation();
1558 }
1559 
1560 void ASTStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
1561   VisitStmt(S);
1562   S->setElement(Record.readSubStmt());
1563   S->setCollection(Record.readSubExpr());
1564   S->setBody(Record.readSubStmt());
1565   S->setForLoc(readSourceLocation());
1566   S->setRParenLoc(readSourceLocation());
1567 }
1568 
1569 void ASTStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
1570   VisitStmt(S);
1571   S->setCatchBody(Record.readSubStmt());
1572   S->setCatchParamDecl(readDeclAs<VarDecl>());
1573   S->setAtCatchLoc(readSourceLocation());
1574   S->setRParenLoc(readSourceLocation());
1575 }
1576 
1577 void ASTStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
1578   VisitStmt(S);
1579   S->setFinallyBody(Record.readSubStmt());
1580   S->setAtFinallyLoc(readSourceLocation());
1581 }
1582 
1583 void ASTStmtReader::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S) {
1584   VisitStmt(S); // FIXME: no test coverage.
1585   S->setSubStmt(Record.readSubStmt());
1586   S->setAtLoc(readSourceLocation());
1587 }
1588 
1589 void ASTStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
1590   VisitStmt(S);
1591   assert(Record.peekInt() == S->getNumCatchStmts());
1592   Record.skipInts(1);
1593   bool HasFinally = Record.readInt();
1594   S->setTryBody(Record.readSubStmt());
1595   for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
1596     S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Record.readSubStmt()));
1597 
1598   if (HasFinally)
1599     S->setFinallyStmt(Record.readSubStmt());
1600   S->setAtTryLoc(readSourceLocation());
1601 }
1602 
1603 void ASTStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
1604   VisitStmt(S); // FIXME: no test coverage.
1605   S->setSynchExpr(Record.readSubStmt());
1606   S->setSynchBody(Record.readSubStmt());
1607   S->setAtSynchronizedLoc(readSourceLocation());
1608 }
1609 
1610 void ASTStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
1611   VisitStmt(S); // FIXME: no test coverage.
1612   S->setThrowExpr(Record.readSubStmt());
1613   S->setThrowLoc(readSourceLocation());
1614 }
1615 
1616 void ASTStmtReader::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
1617   VisitExpr(E);
1618   E->setValue(Record.readInt());
1619   E->setLocation(readSourceLocation());
1620 }
1621 
1622 void ASTStmtReader::VisitObjCAvailabilityCheckExpr(ObjCAvailabilityCheckExpr *E) {
1623   VisitExpr(E);
1624   SourceRange R = Record.readSourceRange();
1625   E->AtLoc = R.getBegin();
1626   E->RParen = R.getEnd();
1627   E->VersionToCheck = Record.readVersionTuple();
1628 }
1629 
1630 //===----------------------------------------------------------------------===//
1631 // C++ Expressions and Statements
1632 //===----------------------------------------------------------------------===//
1633 
1634 void ASTStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
1635   VisitStmt(S);
1636   S->CatchLoc = readSourceLocation();
1637   S->ExceptionDecl = readDeclAs<VarDecl>();
1638   S->HandlerBlock = Record.readSubStmt();
1639 }
1640 
1641 void ASTStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
1642   VisitStmt(S);
1643   assert(Record.peekInt() == S->getNumHandlers() && "NumStmtFields is wrong ?");
1644   Record.skipInts(1);
1645   S->TryLoc = readSourceLocation();
1646   S->getStmts()[0] = Record.readSubStmt();
1647   for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
1648     S->getStmts()[i + 1] = Record.readSubStmt();
1649 }
1650 
1651 void ASTStmtReader::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
1652   VisitStmt(S);
1653   S->ForLoc = readSourceLocation();
1654   S->CoawaitLoc = readSourceLocation();
1655   S->ColonLoc = readSourceLocation();
1656   S->RParenLoc = readSourceLocation();
1657   S->setInit(Record.readSubStmt());
1658   S->setRangeStmt(Record.readSubStmt());
1659   S->setBeginStmt(Record.readSubStmt());
1660   S->setEndStmt(Record.readSubStmt());
1661   S->setCond(Record.readSubExpr());
1662   S->setInc(Record.readSubExpr());
1663   S->setLoopVarStmt(Record.readSubStmt());
1664   S->setBody(Record.readSubStmt());
1665 }
1666 
1667 void ASTStmtReader::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1668   VisitStmt(S);
1669   S->KeywordLoc = readSourceLocation();
1670   S->IsIfExists = Record.readInt();
1671   S->QualifierLoc = Record.readNestedNameSpecifierLoc();
1672   S->NameInfo = Record.readDeclarationNameInfo();
1673   S->SubStmt = Record.readSubStmt();
1674 }
1675 
1676 void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1677   VisitCallExpr(E);
1678   E->CXXOperatorCallExprBits.OperatorKind = Record.readInt();
1679   E->Range = Record.readSourceRange();
1680 }
1681 
1682 void ASTStmtReader::VisitCXXRewrittenBinaryOperator(
1683     CXXRewrittenBinaryOperator *E) {
1684   VisitExpr(E);
1685   E->CXXRewrittenBinaryOperatorBits.IsReversed = Record.readInt();
1686   E->SemanticForm = Record.readSubExpr();
1687 }
1688 
1689 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
1690   VisitExpr(E);
1691 
1692   unsigned NumArgs = Record.readInt();
1693   assert((NumArgs == E->getNumArgs()) && "Wrong NumArgs!");
1694 
1695   E->CXXConstructExprBits.Elidable = Record.readInt();
1696   E->CXXConstructExprBits.HadMultipleCandidates = Record.readInt();
1697   E->CXXConstructExprBits.ListInitialization = Record.readInt();
1698   E->CXXConstructExprBits.StdInitListInitialization = Record.readInt();
1699   E->CXXConstructExprBits.ZeroInitialization = Record.readInt();
1700   E->CXXConstructExprBits.ConstructionKind = Record.readInt();
1701   E->CXXConstructExprBits.Loc = readSourceLocation();
1702   E->Constructor = readDeclAs<CXXConstructorDecl>();
1703   E->ParenOrBraceRange = readSourceRange();
1704 
1705   for (unsigned I = 0; I != NumArgs; ++I)
1706     E->setArg(I, Record.readSubExpr());
1707 }
1708 
1709 void ASTStmtReader::VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E) {
1710   VisitExpr(E);
1711   E->Constructor = readDeclAs<CXXConstructorDecl>();
1712   E->Loc = readSourceLocation();
1713   E->ConstructsVirtualBase = Record.readInt();
1714   E->InheritedFromVirtualBase = Record.readInt();
1715 }
1716 
1717 void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1718   VisitCXXConstructExpr(E);
1719   E->TSI = readTypeSourceInfo();
1720 }
1721 
1722 void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
1723   VisitExpr(E);
1724   unsigned NumCaptures = Record.readInt();
1725   (void)NumCaptures;
1726   assert(NumCaptures == E->LambdaExprBits.NumCaptures);
1727   E->IntroducerRange = readSourceRange();
1728   E->LambdaExprBits.CaptureDefault = Record.readInt();
1729   E->CaptureDefaultLoc = readSourceLocation();
1730   E->LambdaExprBits.ExplicitParams = Record.readInt();
1731   E->LambdaExprBits.ExplicitResultType = Record.readInt();
1732   E->ClosingBrace = readSourceLocation();
1733 
1734   // Read capture initializers.
1735   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1736                                          CEnd = E->capture_init_end();
1737        C != CEnd; ++C)
1738     *C = Record.readSubExpr();
1739 
1740   // The body will be lazily deserialized when needed from the call operator
1741   // declaration.
1742 }
1743 
1744 void
1745 ASTStmtReader::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1746   VisitExpr(E);
1747   E->SubExpr = Record.readSubExpr();
1748 }
1749 
1750 void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1751   VisitExplicitCastExpr(E);
1752   SourceRange R = readSourceRange();
1753   E->Loc = R.getBegin();
1754   E->RParenLoc = R.getEnd();
1755   R = readSourceRange();
1756   E->AngleBrackets = R;
1757 }
1758 
1759 void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1760   return VisitCXXNamedCastExpr(E);
1761 }
1762 
1763 void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1764   return VisitCXXNamedCastExpr(E);
1765 }
1766 
1767 void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1768   return VisitCXXNamedCastExpr(E);
1769 }
1770 
1771 void ASTStmtReader::VisitCXXAddrspaceCastExpr(CXXAddrspaceCastExpr *E) {
1772   return VisitCXXNamedCastExpr(E);
1773 }
1774 
1775 void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1776   return VisitCXXNamedCastExpr(E);
1777 }
1778 
1779 void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1780   VisitExplicitCastExpr(E);
1781   E->setLParenLoc(readSourceLocation());
1782   E->setRParenLoc(readSourceLocation());
1783 }
1784 
1785 void ASTStmtReader::VisitBuiltinBitCastExpr(BuiltinBitCastExpr *E) {
1786   VisitExplicitCastExpr(E);
1787   E->KWLoc = readSourceLocation();
1788   E->RParenLoc = readSourceLocation();
1789 }
1790 
1791 void ASTStmtReader::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1792   VisitCallExpr(E);
1793   E->UDSuffixLoc = readSourceLocation();
1794 }
1795 
1796 void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1797   VisitExpr(E);
1798   E->setValue(Record.readInt());
1799   E->setLocation(readSourceLocation());
1800 }
1801 
1802 void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1803   VisitExpr(E);
1804   E->setLocation(readSourceLocation());
1805 }
1806 
1807 void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1808   VisitExpr(E);
1809   E->setSourceRange(readSourceRange());
1810   if (E->isTypeOperand())
1811     E->Operand = readTypeSourceInfo();
1812   else
1813     E->Operand = Record.readSubExpr();
1814 }
1815 
1816 void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1817   VisitExpr(E);
1818   E->setLocation(readSourceLocation());
1819   E->setImplicit(Record.readInt());
1820 }
1821 
1822 void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1823   VisitExpr(E);
1824   E->CXXThrowExprBits.ThrowLoc = readSourceLocation();
1825   E->Operand = Record.readSubExpr();
1826   E->CXXThrowExprBits.IsThrownVariableInScope = Record.readInt();
1827 }
1828 
1829 void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1830   VisitExpr(E);
1831   E->Param = readDeclAs<ParmVarDecl>();
1832   E->UsedContext = readDeclAs<DeclContext>();
1833   E->CXXDefaultArgExprBits.Loc = readSourceLocation();
1834 }
1835 
1836 void ASTStmtReader::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1837   VisitExpr(E);
1838   E->Field = readDeclAs<FieldDecl>();
1839   E->UsedContext = readDeclAs<DeclContext>();
1840   E->CXXDefaultInitExprBits.Loc = readSourceLocation();
1841 }
1842 
1843 void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1844   VisitExpr(E);
1845   E->setTemporary(Record.readCXXTemporary());
1846   E->setSubExpr(Record.readSubExpr());
1847 }
1848 
1849 void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1850   VisitExpr(E);
1851   E->TypeInfo = readTypeSourceInfo();
1852   E->CXXScalarValueInitExprBits.RParenLoc = readSourceLocation();
1853 }
1854 
1855 void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1856   VisitExpr(E);
1857 
1858   bool IsArray = Record.readInt();
1859   bool HasInit = Record.readInt();
1860   unsigned NumPlacementArgs = Record.readInt();
1861   bool IsParenTypeId = Record.readInt();
1862 
1863   E->CXXNewExprBits.IsGlobalNew = Record.readInt();
1864   E->CXXNewExprBits.ShouldPassAlignment = Record.readInt();
1865   E->CXXNewExprBits.UsualArrayDeleteWantsSize = Record.readInt();
1866   E->CXXNewExprBits.StoredInitializationStyle = Record.readInt();
1867 
1868   assert((IsArray == E->isArray()) && "Wrong IsArray!");
1869   assert((HasInit == E->hasInitializer()) && "Wrong HasInit!");
1870   assert((NumPlacementArgs == E->getNumPlacementArgs()) &&
1871          "Wrong NumPlacementArgs!");
1872   assert((IsParenTypeId == E->isParenTypeId()) && "Wrong IsParenTypeId!");
1873   (void)IsArray;
1874   (void)HasInit;
1875   (void)NumPlacementArgs;
1876 
1877   E->setOperatorNew(readDeclAs<FunctionDecl>());
1878   E->setOperatorDelete(readDeclAs<FunctionDecl>());
1879   E->AllocatedTypeInfo = readTypeSourceInfo();
1880   if (IsParenTypeId)
1881     E->getTrailingObjects<SourceRange>()[0] = readSourceRange();
1882   E->Range = readSourceRange();
1883   E->DirectInitRange = readSourceRange();
1884 
1885   // Install all the subexpressions.
1886   for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),
1887                                     N = E->raw_arg_end();
1888        I != N; ++I)
1889     *I = Record.readSubStmt();
1890 }
1891 
1892 void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1893   VisitExpr(E);
1894   E->CXXDeleteExprBits.GlobalDelete = Record.readInt();
1895   E->CXXDeleteExprBits.ArrayForm = Record.readInt();
1896   E->CXXDeleteExprBits.ArrayFormAsWritten = Record.readInt();
1897   E->CXXDeleteExprBits.UsualArrayDeleteWantsSize = Record.readInt();
1898   E->OperatorDelete = readDeclAs<FunctionDecl>();
1899   E->Argument = Record.readSubExpr();
1900   E->CXXDeleteExprBits.Loc = readSourceLocation();
1901 }
1902 
1903 void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1904   VisitExpr(E);
1905 
1906   E->Base = Record.readSubExpr();
1907   E->IsArrow = Record.readInt();
1908   E->OperatorLoc = readSourceLocation();
1909   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1910   E->ScopeType = readTypeSourceInfo();
1911   E->ColonColonLoc = readSourceLocation();
1912   E->TildeLoc = readSourceLocation();
1913 
1914   IdentifierInfo *II = Record.readIdentifier();
1915   if (II)
1916     E->setDestroyedType(II, readSourceLocation());
1917   else
1918     E->setDestroyedType(readTypeSourceInfo());
1919 }
1920 
1921 void ASTStmtReader::VisitExprWithCleanups(ExprWithCleanups *E) {
1922   VisitExpr(E);
1923 
1924   unsigned NumObjects = Record.readInt();
1925   assert(NumObjects == E->getNumObjects());
1926   for (unsigned i = 0; i != NumObjects; ++i) {
1927     unsigned CleanupKind = Record.readInt();
1928     ExprWithCleanups::CleanupObject Obj;
1929     if (CleanupKind == COK_Block)
1930       Obj = readDeclAs<BlockDecl>();
1931     else if (CleanupKind == COK_CompoundLiteral)
1932       Obj = cast<CompoundLiteralExpr>(Record.readSubExpr());
1933     else
1934       llvm_unreachable("unexpected cleanup object type");
1935     E->getTrailingObjects<ExprWithCleanups::CleanupObject>()[i] = Obj;
1936   }
1937 
1938   E->ExprWithCleanupsBits.CleanupsHaveSideEffects = Record.readInt();
1939   E->SubExpr = Record.readSubExpr();
1940 }
1941 
1942 void ASTStmtReader::VisitCXXDependentScopeMemberExpr(
1943     CXXDependentScopeMemberExpr *E) {
1944   VisitExpr(E);
1945 
1946   bool HasTemplateKWAndArgsInfo = Record.readInt();
1947   unsigned NumTemplateArgs = Record.readInt();
1948   bool HasFirstQualifierFoundInScope = Record.readInt();
1949 
1950   assert((HasTemplateKWAndArgsInfo == E->hasTemplateKWAndArgsInfo()) &&
1951          "Wrong HasTemplateKWAndArgsInfo!");
1952   assert(
1953       (HasFirstQualifierFoundInScope == E->hasFirstQualifierFoundInScope()) &&
1954       "Wrong HasFirstQualifierFoundInScope!");
1955 
1956   if (HasTemplateKWAndArgsInfo)
1957     ReadTemplateKWAndArgsInfo(
1958         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1959         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
1960 
1961   assert((NumTemplateArgs == E->getNumTemplateArgs()) &&
1962          "Wrong NumTemplateArgs!");
1963 
1964   E->CXXDependentScopeMemberExprBits.IsArrow = Record.readInt();
1965   E->CXXDependentScopeMemberExprBits.OperatorLoc = readSourceLocation();
1966   E->BaseType = Record.readType();
1967   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1968   E->Base = Record.readSubExpr();
1969 
1970   if (HasFirstQualifierFoundInScope)
1971     *E->getTrailingObjects<NamedDecl *>() = readDeclAs<NamedDecl>();
1972 
1973   E->MemberNameInfo = Record.readDeclarationNameInfo();
1974 }
1975 
1976 void
1977 ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1978   VisitExpr(E);
1979 
1980   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1981     ReadTemplateKWAndArgsInfo(
1982         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1983         E->getTrailingObjects<TemplateArgumentLoc>(),
1984         /*NumTemplateArgs=*/Record.readInt());
1985 
1986   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1987   E->NameInfo = Record.readDeclarationNameInfo();
1988 }
1989 
1990 void
1991 ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1992   VisitExpr(E);
1993   assert(Record.peekInt() == E->getNumArgs() &&
1994          "Read wrong record during creation ?");
1995   Record.skipInts(1);
1996   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1997     E->setArg(I, Record.readSubExpr());
1998   E->TSI = readTypeSourceInfo();
1999   E->setLParenLoc(readSourceLocation());
2000   E->setRParenLoc(readSourceLocation());
2001 }
2002 
2003 void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
2004   VisitExpr(E);
2005 
2006   unsigned NumResults = Record.readInt();
2007   bool HasTemplateKWAndArgsInfo = Record.readInt();
2008   assert((E->getNumDecls() == NumResults) && "Wrong NumResults!");
2009   assert((E->hasTemplateKWAndArgsInfo() == HasTemplateKWAndArgsInfo) &&
2010          "Wrong HasTemplateKWAndArgsInfo!");
2011 
2012   if (HasTemplateKWAndArgsInfo) {
2013     unsigned NumTemplateArgs = Record.readInt();
2014     ReadTemplateKWAndArgsInfo(*E->getTrailingASTTemplateKWAndArgsInfo(),
2015                               E->getTrailingTemplateArgumentLoc(),
2016                               NumTemplateArgs);
2017     assert((E->getNumTemplateArgs() == NumTemplateArgs) &&
2018            "Wrong NumTemplateArgs!");
2019   }
2020 
2021   UnresolvedSet<8> Decls;
2022   for (unsigned I = 0; I != NumResults; ++I) {
2023     auto *D = readDeclAs<NamedDecl>();
2024     auto AS = (AccessSpecifier)Record.readInt();
2025     Decls.addDecl(D, AS);
2026   }
2027 
2028   DeclAccessPair *Results = E->getTrailingResults();
2029   UnresolvedSetIterator Iter = Decls.begin();
2030   for (unsigned I = 0; I != NumResults; ++I) {
2031     Results[I] = (Iter + I).getPair();
2032   }
2033 
2034   E->NameInfo = Record.readDeclarationNameInfo();
2035   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
2036 }
2037 
2038 void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
2039   VisitOverloadExpr(E);
2040   E->UnresolvedMemberExprBits.IsArrow = Record.readInt();
2041   E->UnresolvedMemberExprBits.HasUnresolvedUsing = Record.readInt();
2042   E->Base = Record.readSubExpr();
2043   E->BaseType = Record.readType();
2044   E->OperatorLoc = readSourceLocation();
2045 }
2046 
2047 void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
2048   VisitOverloadExpr(E);
2049   E->UnresolvedLookupExprBits.RequiresADL = Record.readInt();
2050   E->UnresolvedLookupExprBits.Overloaded = Record.readInt();
2051   E->NamingClass = readDeclAs<CXXRecordDecl>();
2052 }
2053 
2054 void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
2055   VisitExpr(E);
2056   E->TypeTraitExprBits.NumArgs = Record.readInt();
2057   E->TypeTraitExprBits.Kind = Record.readInt();
2058   E->TypeTraitExprBits.Value = Record.readInt();
2059   SourceRange Range = readSourceRange();
2060   E->Loc = Range.getBegin();
2061   E->RParenLoc = Range.getEnd();
2062 
2063   auto **Args = E->getTrailingObjects<TypeSourceInfo *>();
2064   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
2065     Args[I] = readTypeSourceInfo();
2066 }
2067 
2068 void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
2069   VisitExpr(E);
2070   E->ATT = (ArrayTypeTrait)Record.readInt();
2071   E->Value = (unsigned int)Record.readInt();
2072   SourceRange Range = readSourceRange();
2073   E->Loc = Range.getBegin();
2074   E->RParen = Range.getEnd();
2075   E->QueriedType = readTypeSourceInfo();
2076   E->Dimension = Record.readSubExpr();
2077 }
2078 
2079 void ASTStmtReader::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
2080   VisitExpr(E);
2081   E->ET = (ExpressionTrait)Record.readInt();
2082   E->Value = (bool)Record.readInt();
2083   SourceRange Range = readSourceRange();
2084   E->QueriedExpression = Record.readSubExpr();
2085   E->Loc = Range.getBegin();
2086   E->RParen = Range.getEnd();
2087 }
2088 
2089 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
2090   VisitExpr(E);
2091   E->CXXNoexceptExprBits.Value = Record.readInt();
2092   E->Range = readSourceRange();
2093   E->Operand = Record.readSubExpr();
2094 }
2095 
2096 void ASTStmtReader::VisitPackExpansionExpr(PackExpansionExpr *E) {
2097   VisitExpr(E);
2098   E->EllipsisLoc = readSourceLocation();
2099   E->NumExpansions = Record.readInt();
2100   E->Pattern = Record.readSubExpr();
2101 }
2102 
2103 void ASTStmtReader::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
2104   VisitExpr(E);
2105   unsigned NumPartialArgs = Record.readInt();
2106   E->OperatorLoc = readSourceLocation();
2107   E->PackLoc = readSourceLocation();
2108   E->RParenLoc = readSourceLocation();
2109   E->Pack = Record.readDeclAs<NamedDecl>();
2110   if (E->isPartiallySubstituted()) {
2111     assert(E->Length == NumPartialArgs);
2112     for (auto *I = E->getTrailingObjects<TemplateArgument>(),
2113               *E = I + NumPartialArgs;
2114          I != E; ++I)
2115       new (I) TemplateArgument(Record.readTemplateArgument());
2116   } else if (!E->isValueDependent()) {
2117     E->Length = Record.readInt();
2118   }
2119 }
2120 
2121 void ASTStmtReader::VisitSubstNonTypeTemplateParmExpr(
2122                                               SubstNonTypeTemplateParmExpr *E) {
2123   VisitExpr(E);
2124   E->ParamAndRef.setPointer(readDeclAs<NonTypeTemplateParmDecl>());
2125   E->ParamAndRef.setInt(Record.readInt());
2126   E->SubstNonTypeTemplateParmExprBits.NameLoc = readSourceLocation();
2127   E->Replacement = Record.readSubExpr();
2128 }
2129 
2130 void ASTStmtReader::VisitSubstNonTypeTemplateParmPackExpr(
2131                                           SubstNonTypeTemplateParmPackExpr *E) {
2132   VisitExpr(E);
2133   E->Param = readDeclAs<NonTypeTemplateParmDecl>();
2134   TemplateArgument ArgPack = Record.readTemplateArgument();
2135   if (ArgPack.getKind() != TemplateArgument::Pack)
2136     return;
2137 
2138   E->Arguments = ArgPack.pack_begin();
2139   E->NumArguments = ArgPack.pack_size();
2140   E->NameLoc = readSourceLocation();
2141 }
2142 
2143 void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
2144   VisitExpr(E);
2145   E->NumParameters = Record.readInt();
2146   E->ParamPack = readDeclAs<ParmVarDecl>();
2147   E->NameLoc = readSourceLocation();
2148   auto **Parms = E->getTrailingObjects<VarDecl *>();
2149   for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
2150     Parms[i] = readDeclAs<VarDecl>();
2151 }
2152 
2153 void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
2154   VisitExpr(E);
2155   bool HasMaterialzedDecl = Record.readInt();
2156   if (HasMaterialzedDecl)
2157     E->State = cast<LifetimeExtendedTemporaryDecl>(Record.readDecl());
2158   else
2159     E->State = Record.readSubExpr();
2160 }
2161 
2162 void ASTStmtReader::VisitCXXFoldExpr(CXXFoldExpr *E) {
2163   VisitExpr(E);
2164   E->LParenLoc = readSourceLocation();
2165   E->EllipsisLoc = readSourceLocation();
2166   E->RParenLoc = readSourceLocation();
2167   E->NumExpansions = Record.readInt();
2168   E->SubExprs[0] = Record.readSubExpr();
2169   E->SubExprs[1] = Record.readSubExpr();
2170   E->SubExprs[2] = Record.readSubExpr();
2171   E->Opcode = (BinaryOperatorKind)Record.readInt();
2172 }
2173 
2174 void ASTStmtReader::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
2175   VisitExpr(E);
2176   E->SourceExpr = Record.readSubExpr();
2177   E->OpaqueValueExprBits.Loc = readSourceLocation();
2178   E->setIsUnique(Record.readInt());
2179 }
2180 
2181 void ASTStmtReader::VisitTypoExpr(TypoExpr *E) {
2182   llvm_unreachable("Cannot read TypoExpr nodes");
2183 }
2184 
2185 void ASTStmtReader::VisitRecoveryExpr(RecoveryExpr *E) {
2186   VisitExpr(E);
2187   unsigned NumArgs = Record.readInt();
2188   E->BeginLoc = readSourceLocation();
2189   E->EndLoc = readSourceLocation();
2190   assert((NumArgs + 0LL ==
2191           std::distance(E->children().begin(), E->children().end())) &&
2192          "Wrong NumArgs!");
2193   (void)NumArgs;
2194   for (Stmt *&Child : E->children())
2195     Child = Record.readSubStmt();
2196 }
2197 
2198 //===----------------------------------------------------------------------===//
2199 // Microsoft Expressions and Statements
2200 //===----------------------------------------------------------------------===//
2201 void ASTStmtReader::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
2202   VisitExpr(E);
2203   E->IsArrow = (Record.readInt() != 0);
2204   E->BaseExpr = Record.readSubExpr();
2205   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
2206   E->MemberLoc = readSourceLocation();
2207   E->TheDecl = readDeclAs<MSPropertyDecl>();
2208 }
2209 
2210 void ASTStmtReader::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr *E) {
2211   VisitExpr(E);
2212   E->setBase(Record.readSubExpr());
2213   E->setIdx(Record.readSubExpr());
2214   E->setRBracketLoc(readSourceLocation());
2215 }
2216 
2217 void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
2218   VisitExpr(E);
2219   E->setSourceRange(readSourceRange());
2220   E->Guid = readDeclAs<MSGuidDecl>();
2221   if (E->isTypeOperand())
2222     E->Operand = readTypeSourceInfo();
2223   else
2224     E->Operand = Record.readSubExpr();
2225 }
2226 
2227 void ASTStmtReader::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
2228   VisitStmt(S);
2229   S->setLeaveLoc(readSourceLocation());
2230 }
2231 
2232 void ASTStmtReader::VisitSEHExceptStmt(SEHExceptStmt *S) {
2233   VisitStmt(S);
2234   S->Loc = readSourceLocation();
2235   S->Children[SEHExceptStmt::FILTER_EXPR] = Record.readSubStmt();
2236   S->Children[SEHExceptStmt::BLOCK] = Record.readSubStmt();
2237 }
2238 
2239 void ASTStmtReader::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
2240   VisitStmt(S);
2241   S->Loc = readSourceLocation();
2242   S->Block = Record.readSubStmt();
2243 }
2244 
2245 void ASTStmtReader::VisitSEHTryStmt(SEHTryStmt *S) {
2246   VisitStmt(S);
2247   S->IsCXXTry = Record.readInt();
2248   S->TryLoc = readSourceLocation();
2249   S->Children[SEHTryStmt::TRY] = Record.readSubStmt();
2250   S->Children[SEHTryStmt::HANDLER] = Record.readSubStmt();
2251 }
2252 
2253 //===----------------------------------------------------------------------===//
2254 // CUDA Expressions and Statements
2255 //===----------------------------------------------------------------------===//
2256 
2257 void ASTStmtReader::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
2258   VisitCallExpr(E);
2259   E->setPreArg(CUDAKernelCallExpr::CONFIG, Record.readSubExpr());
2260 }
2261 
2262 //===----------------------------------------------------------------------===//
2263 // OpenCL Expressions and Statements.
2264 //===----------------------------------------------------------------------===//
2265 void ASTStmtReader::VisitAsTypeExpr(AsTypeExpr *E) {
2266   VisitExpr(E);
2267   E->BuiltinLoc = readSourceLocation();
2268   E->RParenLoc = readSourceLocation();
2269   E->SrcExpr = Record.readSubExpr();
2270 }
2271 
2272 //===----------------------------------------------------------------------===//
2273 // OpenMP Directives.
2274 //===----------------------------------------------------------------------===//
2275 
2276 void ASTStmtReader::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
2277   Record.readOMPChildren(E->Data);
2278   E->setLocStart(readSourceLocation());
2279   E->setLocEnd(readSourceLocation());
2280 }
2281 
2282 void ASTStmtReader::VisitOMPLoopDirective(OMPLoopDirective *D) {
2283   VisitStmt(D);
2284   // Field CollapsedNum was read in ReadStmtFromStream.
2285   Record.skipInts(1);
2286   VisitOMPExecutableDirective(D);
2287 }
2288 
2289 void ASTStmtReader::VisitOMPParallelDirective(OMPParallelDirective *D) {
2290   VisitStmt(D);
2291   VisitOMPExecutableDirective(D);
2292   D->setHasCancel(Record.readBool());
2293 }
2294 
2295 void ASTStmtReader::VisitOMPSimdDirective(OMPSimdDirective *D) {
2296   VisitOMPLoopDirective(D);
2297 }
2298 
2299 void ASTStmtReader::VisitOMPForDirective(OMPForDirective *D) {
2300   VisitOMPLoopDirective(D);
2301   D->setHasCancel(Record.readBool());
2302 }
2303 
2304 void ASTStmtReader::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
2305   VisitOMPLoopDirective(D);
2306 }
2307 
2308 void ASTStmtReader::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
2309   VisitStmt(D);
2310   VisitOMPExecutableDirective(D);
2311   D->setHasCancel(Record.readBool());
2312 }
2313 
2314 void ASTStmtReader::VisitOMPSectionDirective(OMPSectionDirective *D) {
2315   VisitStmt(D);
2316   VisitOMPExecutableDirective(D);
2317   D->setHasCancel(Record.readBool());
2318 }
2319 
2320 void ASTStmtReader::VisitOMPSingleDirective(OMPSingleDirective *D) {
2321   VisitStmt(D);
2322   VisitOMPExecutableDirective(D);
2323 }
2324 
2325 void ASTStmtReader::VisitOMPMasterDirective(OMPMasterDirective *D) {
2326   VisitStmt(D);
2327   VisitOMPExecutableDirective(D);
2328 }
2329 
2330 void ASTStmtReader::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
2331   VisitStmt(D);
2332   VisitOMPExecutableDirective(D);
2333   D->DirName = Record.readDeclarationNameInfo();
2334 }
2335 
2336 void ASTStmtReader::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
2337   VisitOMPLoopDirective(D);
2338   D->setHasCancel(Record.readBool());
2339 }
2340 
2341 void ASTStmtReader::VisitOMPParallelForSimdDirective(
2342     OMPParallelForSimdDirective *D) {
2343   VisitOMPLoopDirective(D);
2344 }
2345 
2346 void ASTStmtReader::VisitOMPParallelMasterDirective(
2347     OMPParallelMasterDirective *D) {
2348   VisitStmt(D);
2349   VisitOMPExecutableDirective(D);
2350 }
2351 
2352 void ASTStmtReader::VisitOMPParallelSectionsDirective(
2353     OMPParallelSectionsDirective *D) {
2354   VisitStmt(D);
2355   VisitOMPExecutableDirective(D);
2356   D->setHasCancel(Record.readBool());
2357 }
2358 
2359 void ASTStmtReader::VisitOMPTaskDirective(OMPTaskDirective *D) {
2360   VisitStmt(D);
2361   VisitOMPExecutableDirective(D);
2362   D->setHasCancel(Record.readBool());
2363 }
2364 
2365 void ASTStmtReader::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
2366   VisitStmt(D);
2367   VisitOMPExecutableDirective(D);
2368 }
2369 
2370 void ASTStmtReader::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
2371   VisitStmt(D);
2372   VisitOMPExecutableDirective(D);
2373 }
2374 
2375 void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
2376   VisitStmt(D);
2377   VisitOMPExecutableDirective(D);
2378 }
2379 
2380 void ASTStmtReader::VisitOMPTaskgroupDirective(OMPTaskgroupDirective *D) {
2381   VisitStmt(D);
2382   VisitOMPExecutableDirective(D);
2383 }
2384 
2385 void ASTStmtReader::VisitOMPFlushDirective(OMPFlushDirective *D) {
2386   VisitStmt(D);
2387   VisitOMPExecutableDirective(D);
2388 }
2389 
2390 void ASTStmtReader::VisitOMPDepobjDirective(OMPDepobjDirective *D) {
2391   VisitStmt(D);
2392   VisitOMPExecutableDirective(D);
2393 }
2394 
2395 void ASTStmtReader::VisitOMPScanDirective(OMPScanDirective *D) {
2396   VisitStmt(D);
2397   VisitOMPExecutableDirective(D);
2398 }
2399 
2400 void ASTStmtReader::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
2401   VisitStmt(D);
2402   VisitOMPExecutableDirective(D);
2403 }
2404 
2405 void ASTStmtReader::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2406   VisitStmt(D);
2407   VisitOMPExecutableDirective(D);
2408   D->IsXLHSInRHSPart = Record.readBool();
2409   D->IsPostfixUpdate = Record.readBool();
2410 }
2411 
2412 void ASTStmtReader::VisitOMPTargetDirective(OMPTargetDirective *D) {
2413   VisitStmt(D);
2414   VisitOMPExecutableDirective(D);
2415 }
2416 
2417 void ASTStmtReader::VisitOMPTargetDataDirective(OMPTargetDataDirective *D) {
2418   VisitStmt(D);
2419   VisitOMPExecutableDirective(D);
2420 }
2421 
2422 void ASTStmtReader::VisitOMPTargetEnterDataDirective(
2423     OMPTargetEnterDataDirective *D) {
2424   VisitStmt(D);
2425   VisitOMPExecutableDirective(D);
2426 }
2427 
2428 void ASTStmtReader::VisitOMPTargetExitDataDirective(
2429     OMPTargetExitDataDirective *D) {
2430   VisitStmt(D);
2431   VisitOMPExecutableDirective(D);
2432 }
2433 
2434 void ASTStmtReader::VisitOMPTargetParallelDirective(
2435     OMPTargetParallelDirective *D) {
2436   VisitStmt(D);
2437   VisitOMPExecutableDirective(D);
2438   D->setHasCancel(Record.readBool());
2439 }
2440 
2441 void ASTStmtReader::VisitOMPTargetParallelForDirective(
2442     OMPTargetParallelForDirective *D) {
2443   VisitOMPLoopDirective(D);
2444   D->setHasCancel(Record.readBool());
2445 }
2446 
2447 void ASTStmtReader::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2448   VisitStmt(D);
2449   VisitOMPExecutableDirective(D);
2450 }
2451 
2452 void ASTStmtReader::VisitOMPCancellationPointDirective(
2453     OMPCancellationPointDirective *D) {
2454   VisitStmt(D);
2455   VisitOMPExecutableDirective(D);
2456   D->setCancelRegion(Record.readEnum<OpenMPDirectiveKind>());
2457 }
2458 
2459 void ASTStmtReader::VisitOMPCancelDirective(OMPCancelDirective *D) {
2460   VisitStmt(D);
2461   VisitOMPExecutableDirective(D);
2462   D->setCancelRegion(Record.readEnum<OpenMPDirectiveKind>());
2463 }
2464 
2465 void ASTStmtReader::VisitOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
2466   VisitOMPLoopDirective(D);
2467   D->setHasCancel(Record.readBool());
2468 }
2469 
2470 void ASTStmtReader::VisitOMPTaskLoopSimdDirective(OMPTaskLoopSimdDirective *D) {
2471   VisitOMPLoopDirective(D);
2472 }
2473 
2474 void ASTStmtReader::VisitOMPMasterTaskLoopDirective(
2475     OMPMasterTaskLoopDirective *D) {
2476   VisitOMPLoopDirective(D);
2477   D->setHasCancel(Record.readBool());
2478 }
2479 
2480 void ASTStmtReader::VisitOMPMasterTaskLoopSimdDirective(
2481     OMPMasterTaskLoopSimdDirective *D) {
2482   VisitOMPLoopDirective(D);
2483 }
2484 
2485 void ASTStmtReader::VisitOMPParallelMasterTaskLoopDirective(
2486     OMPParallelMasterTaskLoopDirective *D) {
2487   VisitOMPLoopDirective(D);
2488   D->setHasCancel(Record.readBool());
2489 }
2490 
2491 void ASTStmtReader::VisitOMPParallelMasterTaskLoopSimdDirective(
2492     OMPParallelMasterTaskLoopSimdDirective *D) {
2493   VisitOMPLoopDirective(D);
2494 }
2495 
2496 void ASTStmtReader::VisitOMPDistributeDirective(OMPDistributeDirective *D) {
2497   VisitOMPLoopDirective(D);
2498 }
2499 
2500 void ASTStmtReader::VisitOMPTargetUpdateDirective(OMPTargetUpdateDirective *D) {
2501   VisitStmt(D);
2502   VisitOMPExecutableDirective(D);
2503 }
2504 
2505 void ASTStmtReader::VisitOMPDistributeParallelForDirective(
2506     OMPDistributeParallelForDirective *D) {
2507   VisitOMPLoopDirective(D);
2508   D->setHasCancel(Record.readBool());
2509 }
2510 
2511 void ASTStmtReader::VisitOMPDistributeParallelForSimdDirective(
2512     OMPDistributeParallelForSimdDirective *D) {
2513   VisitOMPLoopDirective(D);
2514 }
2515 
2516 void ASTStmtReader::VisitOMPDistributeSimdDirective(
2517     OMPDistributeSimdDirective *D) {
2518   VisitOMPLoopDirective(D);
2519 }
2520 
2521 void ASTStmtReader::VisitOMPTargetParallelForSimdDirective(
2522     OMPTargetParallelForSimdDirective *D) {
2523   VisitOMPLoopDirective(D);
2524 }
2525 
2526 void ASTStmtReader::VisitOMPTargetSimdDirective(OMPTargetSimdDirective *D) {
2527   VisitOMPLoopDirective(D);
2528 }
2529 
2530 void ASTStmtReader::VisitOMPTeamsDistributeDirective(
2531     OMPTeamsDistributeDirective *D) {
2532   VisitOMPLoopDirective(D);
2533 }
2534 
2535 void ASTStmtReader::VisitOMPTeamsDistributeSimdDirective(
2536     OMPTeamsDistributeSimdDirective *D) {
2537   VisitOMPLoopDirective(D);
2538 }
2539 
2540 void ASTStmtReader::VisitOMPTeamsDistributeParallelForSimdDirective(
2541     OMPTeamsDistributeParallelForSimdDirective *D) {
2542   VisitOMPLoopDirective(D);
2543 }
2544 
2545 void ASTStmtReader::VisitOMPTeamsDistributeParallelForDirective(
2546     OMPTeamsDistributeParallelForDirective *D) {
2547   VisitOMPLoopDirective(D);
2548   D->setHasCancel(Record.readBool());
2549 }
2550 
2551 void ASTStmtReader::VisitOMPTargetTeamsDirective(OMPTargetTeamsDirective *D) {
2552   VisitStmt(D);
2553   VisitOMPExecutableDirective(D);
2554 }
2555 
2556 void ASTStmtReader::VisitOMPTargetTeamsDistributeDirective(
2557     OMPTargetTeamsDistributeDirective *D) {
2558   VisitOMPLoopDirective(D);
2559 }
2560 
2561 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForDirective(
2562     OMPTargetTeamsDistributeParallelForDirective *D) {
2563   VisitOMPLoopDirective(D);
2564   D->setHasCancel(Record.readBool());
2565 }
2566 
2567 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
2568     OMPTargetTeamsDistributeParallelForSimdDirective *D) {
2569   VisitOMPLoopDirective(D);
2570 }
2571 
2572 void ASTStmtReader::VisitOMPTargetTeamsDistributeSimdDirective(
2573     OMPTargetTeamsDistributeSimdDirective *D) {
2574   VisitOMPLoopDirective(D);
2575 }
2576 
2577 //===----------------------------------------------------------------------===//
2578 // ASTReader Implementation
2579 //===----------------------------------------------------------------------===//
2580 
2581 Stmt *ASTReader::ReadStmt(ModuleFile &F) {
2582   switch (ReadingKind) {
2583   case Read_None:
2584     llvm_unreachable("should not call this when not reading anything");
2585   case Read_Decl:
2586   case Read_Type:
2587     return ReadStmtFromStream(F);
2588   case Read_Stmt:
2589     return ReadSubStmt();
2590   }
2591 
2592   llvm_unreachable("ReadingKind not set ?");
2593 }
2594 
2595 Expr *ASTReader::ReadExpr(ModuleFile &F) {
2596   return cast_or_null<Expr>(ReadStmt(F));
2597 }
2598 
2599 Expr *ASTReader::ReadSubExpr() {
2600   return cast_or_null<Expr>(ReadSubStmt());
2601 }
2602 
2603 // Within the bitstream, expressions are stored in Reverse Polish
2604 // Notation, with each of the subexpressions preceding the
2605 // expression they are stored in. Subexpressions are stored from last to first.
2606 // To evaluate expressions, we continue reading expressions and placing them on
2607 // the stack, with expressions having operands removing those operands from the
2608 // stack. Evaluation terminates when we see a STMT_STOP record, and
2609 // the single remaining expression on the stack is our result.
2610 Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
2611   ReadingKindTracker ReadingKind(Read_Stmt, *this);
2612   llvm::BitstreamCursor &Cursor = F.DeclsCursor;
2613 
2614   // Map of offset to previously deserialized stmt. The offset points
2615   // just after the stmt record.
2616   llvm::DenseMap<uint64_t, Stmt *> StmtEntries;
2617 
2618 #ifndef NDEBUG
2619   unsigned PrevNumStmts = StmtStack.size();
2620 #endif
2621 
2622   ASTRecordReader Record(*this, F);
2623   ASTStmtReader Reader(Record, Cursor);
2624   Stmt::EmptyShell Empty;
2625 
2626   while (true) {
2627     llvm::Expected<llvm::BitstreamEntry> MaybeEntry =
2628         Cursor.advanceSkippingSubblocks();
2629     if (!MaybeEntry) {
2630       Error(toString(MaybeEntry.takeError()));
2631       return nullptr;
2632     }
2633     llvm::BitstreamEntry Entry = MaybeEntry.get();
2634 
2635     switch (Entry.Kind) {
2636     case llvm::BitstreamEntry::SubBlock: // Handled for us already.
2637     case llvm::BitstreamEntry::Error:
2638       Error("malformed block record in AST file");
2639       return nullptr;
2640     case llvm::BitstreamEntry::EndBlock:
2641       goto Done;
2642     case llvm::BitstreamEntry::Record:
2643       // The interesting case.
2644       break;
2645     }
2646 
2647     ASTContext &Context = getContext();
2648     Stmt *S = nullptr;
2649     bool Finished = false;
2650     bool IsStmtReference = false;
2651     Expected<unsigned> MaybeStmtCode = Record.readRecord(Cursor, Entry.ID);
2652     if (!MaybeStmtCode) {
2653       Error(toString(MaybeStmtCode.takeError()));
2654       return nullptr;
2655     }
2656     switch ((StmtCode)MaybeStmtCode.get()) {
2657     case STMT_STOP:
2658       Finished = true;
2659       break;
2660 
2661     case STMT_REF_PTR:
2662       IsStmtReference = true;
2663       assert(StmtEntries.find(Record[0]) != StmtEntries.end() &&
2664              "No stmt was recorded for this offset reference!");
2665       S = StmtEntries[Record.readInt()];
2666       break;
2667 
2668     case STMT_NULL_PTR:
2669       S = nullptr;
2670       break;
2671 
2672     case STMT_NULL:
2673       S = new (Context) NullStmt(Empty);
2674       break;
2675 
2676     case STMT_COMPOUND:
2677       S = CompoundStmt::CreateEmpty(
2678           Context, /*NumStmts=*/Record[ASTStmtReader::NumStmtFields]);
2679       break;
2680 
2681     case STMT_CASE:
2682       S = CaseStmt::CreateEmpty(
2683           Context,
2684           /*CaseStmtIsGNURange*/ Record[ASTStmtReader::NumStmtFields + 3]);
2685       break;
2686 
2687     case STMT_DEFAULT:
2688       S = new (Context) DefaultStmt(Empty);
2689       break;
2690 
2691     case STMT_LABEL:
2692       S = new (Context) LabelStmt(Empty);
2693       break;
2694 
2695     case STMT_ATTRIBUTED:
2696       S = AttributedStmt::CreateEmpty(
2697         Context,
2698         /*NumAttrs*/Record[ASTStmtReader::NumStmtFields]);
2699       break;
2700 
2701     case STMT_IF:
2702       S = IfStmt::CreateEmpty(
2703           Context,
2704           /* HasElse=*/Record[ASTStmtReader::NumStmtFields + 1],
2705           /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 2],
2706           /* HasInit=*/Record[ASTStmtReader::NumStmtFields + 3]);
2707       break;
2708 
2709     case STMT_SWITCH:
2710       S = SwitchStmt::CreateEmpty(
2711           Context,
2712           /* HasInit=*/Record[ASTStmtReader::NumStmtFields],
2713           /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 1]);
2714       break;
2715 
2716     case STMT_WHILE:
2717       S = WhileStmt::CreateEmpty(
2718           Context,
2719           /* HasVar=*/Record[ASTStmtReader::NumStmtFields]);
2720       break;
2721 
2722     case STMT_DO:
2723       S = new (Context) DoStmt(Empty);
2724       break;
2725 
2726     case STMT_FOR:
2727       S = new (Context) ForStmt(Empty);
2728       break;
2729 
2730     case STMT_GOTO:
2731       S = new (Context) GotoStmt(Empty);
2732       break;
2733 
2734     case STMT_INDIRECT_GOTO:
2735       S = new (Context) IndirectGotoStmt(Empty);
2736       break;
2737 
2738     case STMT_CONTINUE:
2739       S = new (Context) ContinueStmt(Empty);
2740       break;
2741 
2742     case STMT_BREAK:
2743       S = new (Context) BreakStmt(Empty);
2744       break;
2745 
2746     case STMT_RETURN:
2747       S = ReturnStmt::CreateEmpty(
2748           Context, /* HasNRVOCandidate=*/Record[ASTStmtReader::NumStmtFields]);
2749       break;
2750 
2751     case STMT_DECL:
2752       S = new (Context) DeclStmt(Empty);
2753       break;
2754 
2755     case STMT_GCCASM:
2756       S = new (Context) GCCAsmStmt(Empty);
2757       break;
2758 
2759     case STMT_MSASM:
2760       S = new (Context) MSAsmStmt(Empty);
2761       break;
2762 
2763     case STMT_CAPTURED:
2764       S = CapturedStmt::CreateDeserialized(
2765           Context, Record[ASTStmtReader::NumStmtFields]);
2766       break;
2767 
2768     case EXPR_CONSTANT:
2769       S = ConstantExpr::CreateEmpty(
2770           Context, static_cast<ConstantExpr::ResultStorageKind>(
2771                        /*StorageKind=*/Record[ASTStmtReader::NumExprFields]));
2772       break;
2773 
2774     case EXPR_PREDEFINED:
2775       S = PredefinedExpr::CreateEmpty(
2776           Context,
2777           /*HasFunctionName*/ Record[ASTStmtReader::NumExprFields]);
2778       break;
2779 
2780     case EXPR_DECL_REF:
2781       S = DeclRefExpr::CreateEmpty(
2782         Context,
2783         /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
2784         /*HasFoundDecl=*/Record[ASTStmtReader::NumExprFields + 1],
2785         /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 2],
2786         /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 2] ?
2787           Record[ASTStmtReader::NumExprFields + 6] : 0);
2788       break;
2789 
2790     case EXPR_INTEGER_LITERAL:
2791       S = IntegerLiteral::Create(Context, Empty);
2792       break;
2793 
2794     case EXPR_FIXEDPOINT_LITERAL:
2795       S = FixedPointLiteral::Create(Context, Empty);
2796       break;
2797 
2798     case EXPR_FLOATING_LITERAL:
2799       S = FloatingLiteral::Create(Context, Empty);
2800       break;
2801 
2802     case EXPR_IMAGINARY_LITERAL:
2803       S = new (Context) ImaginaryLiteral(Empty);
2804       break;
2805 
2806     case EXPR_STRING_LITERAL:
2807       S = StringLiteral::CreateEmpty(
2808           Context,
2809           /* NumConcatenated=*/Record[ASTStmtReader::NumExprFields],
2810           /* Length=*/Record[ASTStmtReader::NumExprFields + 1],
2811           /* CharByteWidth=*/Record[ASTStmtReader::NumExprFields + 2]);
2812       break;
2813 
2814     case EXPR_CHARACTER_LITERAL:
2815       S = new (Context) CharacterLiteral(Empty);
2816       break;
2817 
2818     case EXPR_PAREN:
2819       S = new (Context) ParenExpr(Empty);
2820       break;
2821 
2822     case EXPR_PAREN_LIST:
2823       S = ParenListExpr::CreateEmpty(
2824           Context,
2825           /* NumExprs=*/Record[ASTStmtReader::NumExprFields]);
2826       break;
2827 
2828     case EXPR_UNARY_OPERATOR:
2829       S = UnaryOperator::CreateEmpty(Context,
2830                                      Record[ASTStmtReader::NumExprFields]);
2831       break;
2832 
2833     case EXPR_OFFSETOF:
2834       S = OffsetOfExpr::CreateEmpty(Context,
2835                                     Record[ASTStmtReader::NumExprFields],
2836                                     Record[ASTStmtReader::NumExprFields + 1]);
2837       break;
2838 
2839     case EXPR_SIZEOF_ALIGN_OF:
2840       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);
2841       break;
2842 
2843     case EXPR_ARRAY_SUBSCRIPT:
2844       S = new (Context) ArraySubscriptExpr(Empty);
2845       break;
2846 
2847     case EXPR_MATRIX_SUBSCRIPT:
2848       S = new (Context) MatrixSubscriptExpr(Empty);
2849       break;
2850 
2851     case EXPR_OMP_ARRAY_SECTION:
2852       S = new (Context) OMPArraySectionExpr(Empty);
2853       break;
2854 
2855     case EXPR_OMP_ARRAY_SHAPING:
2856       S = OMPArrayShapingExpr::CreateEmpty(
2857           Context, Record[ASTStmtReader::NumExprFields]);
2858       break;
2859 
2860     case EXPR_OMP_ITERATOR:
2861       S = OMPIteratorExpr::CreateEmpty(Context,
2862                                        Record[ASTStmtReader::NumExprFields]);
2863       break;
2864 
2865     case EXPR_CALL:
2866       S = CallExpr::CreateEmpty(
2867           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
2868           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
2869       break;
2870 
2871     case EXPR_RECOVERY:
2872       S = RecoveryExpr::CreateEmpty(
2873           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
2874       break;
2875 
2876     case EXPR_MEMBER:
2877       S = MemberExpr::CreateEmpty(Context, Record[ASTStmtReader::NumExprFields],
2878                                   Record[ASTStmtReader::NumExprFields + 1],
2879                                   Record[ASTStmtReader::NumExprFields + 2],
2880                                   Record[ASTStmtReader::NumExprFields + 3]);
2881       break;
2882 
2883     case EXPR_BINARY_OPERATOR:
2884       S = BinaryOperator::CreateEmpty(Context,
2885                                       Record[ASTStmtReader::NumExprFields]);
2886       break;
2887 
2888     case EXPR_COMPOUND_ASSIGN_OPERATOR:
2889       S = CompoundAssignOperator::CreateEmpty(
2890           Context, Record[ASTStmtReader::NumExprFields]);
2891       break;
2892 
2893     case EXPR_CONDITIONAL_OPERATOR:
2894       S = new (Context) ConditionalOperator(Empty);
2895       break;
2896 
2897     case EXPR_BINARY_CONDITIONAL_OPERATOR:
2898       S = new (Context) BinaryConditionalOperator(Empty);
2899       break;
2900 
2901     case EXPR_IMPLICIT_CAST:
2902       S = ImplicitCastExpr::CreateEmpty(
2903           Context,
2904           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
2905           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
2906       break;
2907 
2908     case EXPR_CSTYLE_CAST:
2909       S = CStyleCastExpr::CreateEmpty(
2910           Context,
2911           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
2912           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
2913       break;
2914 
2915     case EXPR_COMPOUND_LITERAL:
2916       S = new (Context) CompoundLiteralExpr(Empty);
2917       break;
2918 
2919     case EXPR_EXT_VECTOR_ELEMENT:
2920       S = new (Context) ExtVectorElementExpr(Empty);
2921       break;
2922 
2923     case EXPR_INIT_LIST:
2924       S = new (Context) InitListExpr(Empty);
2925       break;
2926 
2927     case EXPR_DESIGNATED_INIT:
2928       S = DesignatedInitExpr::CreateEmpty(Context,
2929                                      Record[ASTStmtReader::NumExprFields] - 1);
2930 
2931       break;
2932 
2933     case EXPR_DESIGNATED_INIT_UPDATE:
2934       S = new (Context) DesignatedInitUpdateExpr(Empty);
2935       break;
2936 
2937     case EXPR_IMPLICIT_VALUE_INIT:
2938       S = new (Context) ImplicitValueInitExpr(Empty);
2939       break;
2940 
2941     case EXPR_NO_INIT:
2942       S = new (Context) NoInitExpr(Empty);
2943       break;
2944 
2945     case EXPR_ARRAY_INIT_LOOP:
2946       S = new (Context) ArrayInitLoopExpr(Empty);
2947       break;
2948 
2949     case EXPR_ARRAY_INIT_INDEX:
2950       S = new (Context) ArrayInitIndexExpr(Empty);
2951       break;
2952 
2953     case EXPR_VA_ARG:
2954       S = new (Context) VAArgExpr(Empty);
2955       break;
2956 
2957     case EXPR_SOURCE_LOC:
2958       S = new (Context) SourceLocExpr(Empty);
2959       break;
2960 
2961     case EXPR_ADDR_LABEL:
2962       S = new (Context) AddrLabelExpr(Empty);
2963       break;
2964 
2965     case EXPR_STMT:
2966       S = new (Context) StmtExpr(Empty);
2967       break;
2968 
2969     case EXPR_CHOOSE:
2970       S = new (Context) ChooseExpr(Empty);
2971       break;
2972 
2973     case EXPR_GNU_NULL:
2974       S = new (Context) GNUNullExpr(Empty);
2975       break;
2976 
2977     case EXPR_SHUFFLE_VECTOR:
2978       S = new (Context) ShuffleVectorExpr(Empty);
2979       break;
2980 
2981     case EXPR_CONVERT_VECTOR:
2982       S = new (Context) ConvertVectorExpr(Empty);
2983       break;
2984 
2985     case EXPR_BLOCK:
2986       S = new (Context) BlockExpr(Empty);
2987       break;
2988 
2989     case EXPR_GENERIC_SELECTION:
2990       S = GenericSelectionExpr::CreateEmpty(
2991           Context,
2992           /*NumAssocs=*/Record[ASTStmtReader::NumExprFields]);
2993       break;
2994 
2995     case EXPR_OBJC_STRING_LITERAL:
2996       S = new (Context) ObjCStringLiteral(Empty);
2997       break;
2998 
2999     case EXPR_OBJC_BOXED_EXPRESSION:
3000       S = new (Context) ObjCBoxedExpr(Empty);
3001       break;
3002 
3003     case EXPR_OBJC_ARRAY_LITERAL:
3004       S = ObjCArrayLiteral::CreateEmpty(Context,
3005                                         Record[ASTStmtReader::NumExprFields]);
3006       break;
3007 
3008     case EXPR_OBJC_DICTIONARY_LITERAL:
3009       S = ObjCDictionaryLiteral::CreateEmpty(Context,
3010             Record[ASTStmtReader::NumExprFields],
3011             Record[ASTStmtReader::NumExprFields + 1]);
3012       break;
3013 
3014     case EXPR_OBJC_ENCODE:
3015       S = new (Context) ObjCEncodeExpr(Empty);
3016       break;
3017 
3018     case EXPR_OBJC_SELECTOR_EXPR:
3019       S = new (Context) ObjCSelectorExpr(Empty);
3020       break;
3021 
3022     case EXPR_OBJC_PROTOCOL_EXPR:
3023       S = new (Context) ObjCProtocolExpr(Empty);
3024       break;
3025 
3026     case EXPR_OBJC_IVAR_REF_EXPR:
3027       S = new (Context) ObjCIvarRefExpr(Empty);
3028       break;
3029 
3030     case EXPR_OBJC_PROPERTY_REF_EXPR:
3031       S = new (Context) ObjCPropertyRefExpr(Empty);
3032       break;
3033 
3034     case EXPR_OBJC_SUBSCRIPT_REF_EXPR:
3035       S = new (Context) ObjCSubscriptRefExpr(Empty);
3036       break;
3037 
3038     case EXPR_OBJC_KVC_REF_EXPR:
3039       llvm_unreachable("mismatching AST file");
3040 
3041     case EXPR_OBJC_MESSAGE_EXPR:
3042       S = ObjCMessageExpr::CreateEmpty(Context,
3043                                      Record[ASTStmtReader::NumExprFields],
3044                                      Record[ASTStmtReader::NumExprFields + 1]);
3045       break;
3046 
3047     case EXPR_OBJC_ISA:
3048       S = new (Context) ObjCIsaExpr(Empty);
3049       break;
3050 
3051     case EXPR_OBJC_INDIRECT_COPY_RESTORE:
3052       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);
3053       break;
3054 
3055     case EXPR_OBJC_BRIDGED_CAST:
3056       S = new (Context) ObjCBridgedCastExpr(Empty);
3057       break;
3058 
3059     case STMT_OBJC_FOR_COLLECTION:
3060       S = new (Context) ObjCForCollectionStmt(Empty);
3061       break;
3062 
3063     case STMT_OBJC_CATCH:
3064       S = new (Context) ObjCAtCatchStmt(Empty);
3065       break;
3066 
3067     case STMT_OBJC_FINALLY:
3068       S = new (Context) ObjCAtFinallyStmt(Empty);
3069       break;
3070 
3071     case STMT_OBJC_AT_TRY:
3072       S = ObjCAtTryStmt::CreateEmpty(Context,
3073                                      Record[ASTStmtReader::NumStmtFields],
3074                                      Record[ASTStmtReader::NumStmtFields + 1]);
3075       break;
3076 
3077     case STMT_OBJC_AT_SYNCHRONIZED:
3078       S = new (Context) ObjCAtSynchronizedStmt(Empty);
3079       break;
3080 
3081     case STMT_OBJC_AT_THROW:
3082       S = new (Context) ObjCAtThrowStmt(Empty);
3083       break;
3084 
3085     case STMT_OBJC_AUTORELEASE_POOL:
3086       S = new (Context) ObjCAutoreleasePoolStmt(Empty);
3087       break;
3088 
3089     case EXPR_OBJC_BOOL_LITERAL:
3090       S = new (Context) ObjCBoolLiteralExpr(Empty);
3091       break;
3092 
3093     case EXPR_OBJC_AVAILABILITY_CHECK:
3094       S = new (Context) ObjCAvailabilityCheckExpr(Empty);
3095       break;
3096 
3097     case STMT_SEH_LEAVE:
3098       S = new (Context) SEHLeaveStmt(Empty);
3099       break;
3100 
3101     case STMT_SEH_EXCEPT:
3102       S = new (Context) SEHExceptStmt(Empty);
3103       break;
3104 
3105     case STMT_SEH_FINALLY:
3106       S = new (Context) SEHFinallyStmt(Empty);
3107       break;
3108 
3109     case STMT_SEH_TRY:
3110       S = new (Context) SEHTryStmt(Empty);
3111       break;
3112 
3113     case STMT_CXX_CATCH:
3114       S = new (Context) CXXCatchStmt(Empty);
3115       break;
3116 
3117     case STMT_CXX_TRY:
3118       S = CXXTryStmt::Create(Context, Empty,
3119              /*numHandlers=*/Record[ASTStmtReader::NumStmtFields]);
3120       break;
3121 
3122     case STMT_CXX_FOR_RANGE:
3123       S = new (Context) CXXForRangeStmt(Empty);
3124       break;
3125 
3126     case STMT_MS_DEPENDENT_EXISTS:
3127       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,
3128                                               NestedNameSpecifierLoc(),
3129                                               DeclarationNameInfo(),
3130                                               nullptr);
3131       break;
3132 
3133     case STMT_OMP_PARALLEL_DIRECTIVE:
3134       S =
3135         OMPParallelDirective::CreateEmpty(Context,
3136                                           Record[ASTStmtReader::NumStmtFields],
3137                                           Empty);
3138       break;
3139 
3140     case STMT_OMP_SIMD_DIRECTIVE: {
3141       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3142       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3143       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,
3144                                         CollapsedNum, Empty);
3145       break;
3146     }
3147 
3148     case STMT_OMP_FOR_DIRECTIVE: {
3149       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3150       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3151       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3152                                        Empty);
3153       break;
3154     }
3155 
3156     case STMT_OMP_FOR_SIMD_DIRECTIVE: {
3157       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3158       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3159       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3160                                            Empty);
3161       break;
3162     }
3163 
3164     case STMT_OMP_SECTIONS_DIRECTIVE:
3165       S = OMPSectionsDirective::CreateEmpty(
3166           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3167       break;
3168 
3169     case STMT_OMP_SECTION_DIRECTIVE:
3170       S = OMPSectionDirective::CreateEmpty(Context, Empty);
3171       break;
3172 
3173     case STMT_OMP_SINGLE_DIRECTIVE:
3174       S = OMPSingleDirective::CreateEmpty(
3175           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3176       break;
3177 
3178     case STMT_OMP_MASTER_DIRECTIVE:
3179       S = OMPMasterDirective::CreateEmpty(Context, Empty);
3180       break;
3181 
3182     case STMT_OMP_CRITICAL_DIRECTIVE:
3183       S = OMPCriticalDirective::CreateEmpty(
3184           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3185       break;
3186 
3187     case STMT_OMP_PARALLEL_FOR_DIRECTIVE: {
3188       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3189       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3190       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,
3191                                                CollapsedNum, Empty);
3192       break;
3193     }
3194 
3195     case STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE: {
3196       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3197       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3198       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3199                                                    CollapsedNum, Empty);
3200       break;
3201     }
3202 
3203     case STMT_OMP_PARALLEL_MASTER_DIRECTIVE:
3204       S = OMPParallelMasterDirective::CreateEmpty(
3205           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3206       break;
3207 
3208     case STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE:
3209       S = OMPParallelSectionsDirective::CreateEmpty(
3210           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3211       break;
3212 
3213     case STMT_OMP_TASK_DIRECTIVE:
3214       S = OMPTaskDirective::CreateEmpty(
3215           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3216       break;
3217 
3218     case STMT_OMP_TASKYIELD_DIRECTIVE:
3219       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);
3220       break;
3221 
3222     case STMT_OMP_BARRIER_DIRECTIVE:
3223       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
3224       break;
3225 
3226     case STMT_OMP_TASKWAIT_DIRECTIVE:
3227       S = OMPTaskwaitDirective::CreateEmpty(Context, Empty);
3228       break;
3229 
3230     case STMT_OMP_TASKGROUP_DIRECTIVE:
3231       S = OMPTaskgroupDirective::CreateEmpty(
3232           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3233       break;
3234 
3235     case STMT_OMP_FLUSH_DIRECTIVE:
3236       S = OMPFlushDirective::CreateEmpty(
3237           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3238       break;
3239 
3240     case STMT_OMP_DEPOBJ_DIRECTIVE:
3241       S = OMPDepobjDirective::CreateEmpty(
3242           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3243       break;
3244 
3245     case STMT_OMP_SCAN_DIRECTIVE:
3246       S = OMPScanDirective::CreateEmpty(
3247           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3248       break;
3249 
3250     case STMT_OMP_ORDERED_DIRECTIVE: {
3251       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3252       bool HasAssociatedStmt = Record[ASTStmtReader::NumStmtFields + 2];
3253       S = OMPOrderedDirective::CreateEmpty(Context, NumClauses,
3254                                            !HasAssociatedStmt, Empty);
3255       break;
3256     }
3257 
3258     case STMT_OMP_ATOMIC_DIRECTIVE:
3259       S = OMPAtomicDirective::CreateEmpty(
3260           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3261       break;
3262 
3263     case STMT_OMP_TARGET_DIRECTIVE:
3264       S = OMPTargetDirective::CreateEmpty(
3265           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3266       break;
3267 
3268     case STMT_OMP_TARGET_DATA_DIRECTIVE:
3269       S = OMPTargetDataDirective::CreateEmpty(
3270           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3271       break;
3272 
3273     case STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE:
3274       S = OMPTargetEnterDataDirective::CreateEmpty(
3275           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3276       break;
3277 
3278     case STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE:
3279       S = OMPTargetExitDataDirective::CreateEmpty(
3280           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3281       break;
3282 
3283     case STMT_OMP_TARGET_PARALLEL_DIRECTIVE:
3284       S = OMPTargetParallelDirective::CreateEmpty(
3285           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3286       break;
3287 
3288     case STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE: {
3289       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3290       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3291       S = OMPTargetParallelForDirective::CreateEmpty(Context, NumClauses,
3292                                                      CollapsedNum, Empty);
3293       break;
3294     }
3295 
3296     case STMT_OMP_TARGET_UPDATE_DIRECTIVE:
3297       S = OMPTargetUpdateDirective::CreateEmpty(
3298           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3299       break;
3300 
3301     case STMT_OMP_TEAMS_DIRECTIVE:
3302       S = OMPTeamsDirective::CreateEmpty(
3303           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3304       break;
3305 
3306     case STMT_OMP_CANCELLATION_POINT_DIRECTIVE:
3307       S = OMPCancellationPointDirective::CreateEmpty(Context, Empty);
3308       break;
3309 
3310     case STMT_OMP_CANCEL_DIRECTIVE:
3311       S = OMPCancelDirective::CreateEmpty(
3312           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3313       break;
3314 
3315     case STMT_OMP_TASKLOOP_DIRECTIVE: {
3316       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3317       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3318       S = OMPTaskLoopDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3319                                             Empty);
3320       break;
3321     }
3322 
3323     case STMT_OMP_TASKLOOP_SIMD_DIRECTIVE: {
3324       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3325       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3326       S = OMPTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
3327                                                 CollapsedNum, Empty);
3328       break;
3329     }
3330 
3331     case STMT_OMP_MASTER_TASKLOOP_DIRECTIVE: {
3332       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3333       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3334       S = OMPMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,
3335                                                   CollapsedNum, Empty);
3336       break;
3337     }
3338 
3339     case STMT_OMP_MASTER_TASKLOOP_SIMD_DIRECTIVE: {
3340       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3341       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3342       S = OMPMasterTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
3343                                                       CollapsedNum, Empty);
3344       break;
3345     }
3346 
3347     case STMT_OMP_PARALLEL_MASTER_TASKLOOP_DIRECTIVE: {
3348       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3349       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3350       S = OMPParallelMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,
3351                                                           CollapsedNum, Empty);
3352       break;
3353     }
3354 
3355     case STMT_OMP_PARALLEL_MASTER_TASKLOOP_SIMD_DIRECTIVE: {
3356       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3357       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3358       S = OMPParallelMasterTaskLoopSimdDirective::CreateEmpty(
3359           Context, NumClauses, CollapsedNum, Empty);
3360       break;
3361     }
3362 
3363     case STMT_OMP_DISTRIBUTE_DIRECTIVE: {
3364       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3365       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3366       S = OMPDistributeDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3367                                               Empty);
3368       break;
3369     }
3370 
3371     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3372       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3373       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3374       S = OMPDistributeParallelForDirective::CreateEmpty(Context, NumClauses,
3375                                                          CollapsedNum, Empty);
3376       break;
3377     }
3378 
3379     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3380       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3381       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3382       S = OMPDistributeParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3383                                                              CollapsedNum,
3384                                                              Empty);
3385       break;
3386     }
3387 
3388     case STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE: {
3389       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3390       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3391       S = OMPDistributeSimdDirective::CreateEmpty(Context, NumClauses,
3392                                                   CollapsedNum, Empty);
3393       break;
3394     }
3395 
3396     case STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE: {
3397       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3398       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3399       S = OMPTargetParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3400                                                          CollapsedNum, Empty);
3401       break;
3402     }
3403 
3404     case STMT_OMP_TARGET_SIMD_DIRECTIVE: {
3405       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3406       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3407       S = OMPTargetSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3408                                               Empty);
3409       break;
3410     }
3411 
3412      case STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE: {
3413        unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3414        unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3415        S = OMPTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
3416                                                     CollapsedNum, Empty);
3417        break;
3418     }
3419 
3420     case STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
3421       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3422       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3423       S = OMPTeamsDistributeSimdDirective::CreateEmpty(Context, NumClauses,
3424                                                        CollapsedNum, Empty);
3425       break;
3426     }
3427 
3428     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3429       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3430       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3431       S = OMPTeamsDistributeParallelForSimdDirective::CreateEmpty(
3432           Context, NumClauses, CollapsedNum, Empty);
3433       break;
3434     }
3435 
3436     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3437       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3438       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3439       S = OMPTeamsDistributeParallelForDirective::CreateEmpty(
3440           Context, NumClauses, CollapsedNum, Empty);
3441       break;
3442     }
3443 
3444     case STMT_OMP_TARGET_TEAMS_DIRECTIVE:
3445       S = OMPTargetTeamsDirective::CreateEmpty(
3446           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3447       break;
3448 
3449     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE: {
3450       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3451       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3452       S = OMPTargetTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
3453                                                          CollapsedNum, Empty);
3454       break;
3455     }
3456 
3457     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3458       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3459       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3460       S = OMPTargetTeamsDistributeParallelForDirective::CreateEmpty(
3461           Context, NumClauses, CollapsedNum, Empty);
3462       break;
3463     }
3464 
3465     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3466       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3467       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3468       S = OMPTargetTeamsDistributeParallelForSimdDirective::CreateEmpty(
3469           Context, NumClauses, CollapsedNum, Empty);
3470       break;
3471     }
3472 
3473     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
3474       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3475       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3476       S = OMPTargetTeamsDistributeSimdDirective::CreateEmpty(
3477           Context, NumClauses, CollapsedNum, Empty);
3478       break;
3479     }
3480 
3481     case EXPR_CXX_OPERATOR_CALL:
3482       S = CXXOperatorCallExpr::CreateEmpty(
3483           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3484           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3485       break;
3486 
3487     case EXPR_CXX_MEMBER_CALL:
3488       S = CXXMemberCallExpr::CreateEmpty(
3489           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3490           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3491       break;
3492 
3493     case EXPR_CXX_REWRITTEN_BINARY_OPERATOR:
3494       S = new (Context) CXXRewrittenBinaryOperator(Empty);
3495       break;
3496 
3497     case EXPR_CXX_CONSTRUCT:
3498       S = CXXConstructExpr::CreateEmpty(
3499           Context,
3500           /* NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3501       break;
3502 
3503     case EXPR_CXX_INHERITED_CTOR_INIT:
3504       S = new (Context) CXXInheritedCtorInitExpr(Empty);
3505       break;
3506 
3507     case EXPR_CXX_TEMPORARY_OBJECT:
3508       S = CXXTemporaryObjectExpr::CreateEmpty(
3509           Context,
3510           /* NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3511       break;
3512 
3513     case EXPR_CXX_STATIC_CAST:
3514       S = CXXStaticCastExpr::CreateEmpty(
3515           Context,
3516           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
3517           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
3518       break;
3519 
3520     case EXPR_CXX_DYNAMIC_CAST:
3521       S = CXXDynamicCastExpr::CreateEmpty(Context,
3522                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3523       break;
3524 
3525     case EXPR_CXX_REINTERPRET_CAST:
3526       S = CXXReinterpretCastExpr::CreateEmpty(Context,
3527                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3528       break;
3529 
3530     case EXPR_CXX_CONST_CAST:
3531       S = CXXConstCastExpr::CreateEmpty(Context);
3532       break;
3533 
3534     case EXPR_CXX_ADDRSPACE_CAST:
3535       S = CXXAddrspaceCastExpr::CreateEmpty(Context);
3536       break;
3537 
3538     case EXPR_CXX_FUNCTIONAL_CAST:
3539       S = CXXFunctionalCastExpr::CreateEmpty(
3540           Context,
3541           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
3542           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
3543       break;
3544 
3545     case EXPR_BUILTIN_BIT_CAST:
3546       assert(Record[ASTStmtReader::NumExprFields] == 0 && "Wrong PathSize!");
3547       S = new (Context) BuiltinBitCastExpr(Empty);
3548       break;
3549 
3550     case EXPR_USER_DEFINED_LITERAL:
3551       S = UserDefinedLiteral::CreateEmpty(
3552           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3553           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3554       break;
3555 
3556     case EXPR_CXX_STD_INITIALIZER_LIST:
3557       S = new (Context) CXXStdInitializerListExpr(Empty);
3558       break;
3559 
3560     case EXPR_CXX_BOOL_LITERAL:
3561       S = new (Context) CXXBoolLiteralExpr(Empty);
3562       break;
3563 
3564     case EXPR_CXX_NULL_PTR_LITERAL:
3565       S = new (Context) CXXNullPtrLiteralExpr(Empty);
3566       break;
3567 
3568     case EXPR_CXX_TYPEID_EXPR:
3569       S = new (Context) CXXTypeidExpr(Empty, true);
3570       break;
3571 
3572     case EXPR_CXX_TYPEID_TYPE:
3573       S = new (Context) CXXTypeidExpr(Empty, false);
3574       break;
3575 
3576     case EXPR_CXX_UUIDOF_EXPR:
3577       S = new (Context) CXXUuidofExpr(Empty, true);
3578       break;
3579 
3580     case EXPR_CXX_PROPERTY_REF_EXPR:
3581       S = new (Context) MSPropertyRefExpr(Empty);
3582       break;
3583 
3584     case EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR:
3585       S = new (Context) MSPropertySubscriptExpr(Empty);
3586       break;
3587 
3588     case EXPR_CXX_UUIDOF_TYPE:
3589       S = new (Context) CXXUuidofExpr(Empty, false);
3590       break;
3591 
3592     case EXPR_CXX_THIS:
3593       S = new (Context) CXXThisExpr(Empty);
3594       break;
3595 
3596     case EXPR_CXX_THROW:
3597       S = new (Context) CXXThrowExpr(Empty);
3598       break;
3599 
3600     case EXPR_CXX_DEFAULT_ARG:
3601       S = new (Context) CXXDefaultArgExpr(Empty);
3602       break;
3603 
3604     case EXPR_CXX_DEFAULT_INIT:
3605       S = new (Context) CXXDefaultInitExpr(Empty);
3606       break;
3607 
3608     case EXPR_CXX_BIND_TEMPORARY:
3609       S = new (Context) CXXBindTemporaryExpr(Empty);
3610       break;
3611 
3612     case EXPR_CXX_SCALAR_VALUE_INIT:
3613       S = new (Context) CXXScalarValueInitExpr(Empty);
3614       break;
3615 
3616     case EXPR_CXX_NEW:
3617       S = CXXNewExpr::CreateEmpty(
3618           Context,
3619           /*IsArray=*/Record[ASTStmtReader::NumExprFields],
3620           /*HasInit=*/Record[ASTStmtReader::NumExprFields + 1],
3621           /*NumPlacementArgs=*/Record[ASTStmtReader::NumExprFields + 2],
3622           /*IsParenTypeId=*/Record[ASTStmtReader::NumExprFields + 3]);
3623       break;
3624 
3625     case EXPR_CXX_DELETE:
3626       S = new (Context) CXXDeleteExpr(Empty);
3627       break;
3628 
3629     case EXPR_CXX_PSEUDO_DESTRUCTOR:
3630       S = new (Context) CXXPseudoDestructorExpr(Empty);
3631       break;
3632 
3633     case EXPR_EXPR_WITH_CLEANUPS:
3634       S = ExprWithCleanups::Create(Context, Empty,
3635                                    Record[ASTStmtReader::NumExprFields]);
3636       break;
3637 
3638     case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
3639       S = CXXDependentScopeMemberExpr::CreateEmpty(
3640           Context,
3641           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3642           /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 1],
3643           /*HasFirstQualifierFoundInScope=*/
3644           Record[ASTStmtReader::NumExprFields + 2]);
3645       break;
3646 
3647     case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
3648       S = DependentScopeDeclRefExpr::CreateEmpty(Context,
3649          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3650                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3651                                    ? Record[ASTStmtReader::NumExprFields + 1]
3652                                    : 0);
3653       break;
3654 
3655     case EXPR_CXX_UNRESOLVED_CONSTRUCT:
3656       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,
3657                               /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3658       break;
3659 
3660     case EXPR_CXX_UNRESOLVED_MEMBER:
3661       S = UnresolvedMemberExpr::CreateEmpty(
3662           Context,
3663           /*NumResults=*/Record[ASTStmtReader::NumExprFields],
3664           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 1],
3665           /*NumTemplateArgs=*/
3666           Record[ASTStmtReader::NumExprFields + 1]
3667               ? Record[ASTStmtReader::NumExprFields + 2]
3668               : 0);
3669       break;
3670 
3671     case EXPR_CXX_UNRESOLVED_LOOKUP:
3672       S = UnresolvedLookupExpr::CreateEmpty(
3673           Context,
3674           /*NumResults=*/Record[ASTStmtReader::NumExprFields],
3675           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 1],
3676           /*NumTemplateArgs=*/
3677           Record[ASTStmtReader::NumExprFields + 1]
3678               ? Record[ASTStmtReader::NumExprFields + 2]
3679               : 0);
3680       break;
3681 
3682     case EXPR_TYPE_TRAIT:
3683       S = TypeTraitExpr::CreateDeserialized(Context,
3684             Record[ASTStmtReader::NumExprFields]);
3685       break;
3686 
3687     case EXPR_ARRAY_TYPE_TRAIT:
3688       S = new (Context) ArrayTypeTraitExpr(Empty);
3689       break;
3690 
3691     case EXPR_CXX_EXPRESSION_TRAIT:
3692       S = new (Context) ExpressionTraitExpr(Empty);
3693       break;
3694 
3695     case EXPR_CXX_NOEXCEPT:
3696       S = new (Context) CXXNoexceptExpr(Empty);
3697       break;
3698 
3699     case EXPR_PACK_EXPANSION:
3700       S = new (Context) PackExpansionExpr(Empty);
3701       break;
3702 
3703     case EXPR_SIZEOF_PACK:
3704       S = SizeOfPackExpr::CreateDeserialized(
3705               Context,
3706               /*NumPartialArgs=*/Record[ASTStmtReader::NumExprFields]);
3707       break;
3708 
3709     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM:
3710       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);
3711       break;
3712 
3713     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
3714       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
3715       break;
3716 
3717     case EXPR_FUNCTION_PARM_PACK:
3718       S = FunctionParmPackExpr::CreateEmpty(Context,
3719                                           Record[ASTStmtReader::NumExprFields]);
3720       break;
3721 
3722     case EXPR_MATERIALIZE_TEMPORARY:
3723       S = new (Context) MaterializeTemporaryExpr(Empty);
3724       break;
3725 
3726     case EXPR_CXX_FOLD:
3727       S = new (Context) CXXFoldExpr(Empty);
3728       break;
3729 
3730     case EXPR_OPAQUE_VALUE:
3731       S = new (Context) OpaqueValueExpr(Empty);
3732       break;
3733 
3734     case EXPR_CUDA_KERNEL_CALL:
3735       S = CUDAKernelCallExpr::CreateEmpty(
3736           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3737           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3738       break;
3739 
3740     case EXPR_ASTYPE:
3741       S = new (Context) AsTypeExpr(Empty);
3742       break;
3743 
3744     case EXPR_PSEUDO_OBJECT: {
3745       unsigned numSemanticExprs = Record[ASTStmtReader::NumExprFields];
3746       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);
3747       break;
3748     }
3749 
3750     case EXPR_ATOMIC:
3751       S = new (Context) AtomicExpr(Empty);
3752       break;
3753 
3754     case EXPR_LAMBDA: {
3755       unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
3756       S = LambdaExpr::CreateDeserialized(Context, NumCaptures);
3757       break;
3758     }
3759 
3760     case STMT_COROUTINE_BODY: {
3761       unsigned NumParams = Record[ASTStmtReader::NumStmtFields];
3762       S = CoroutineBodyStmt::Create(Context, Empty, NumParams);
3763       break;
3764     }
3765 
3766     case STMT_CORETURN:
3767       S = new (Context) CoreturnStmt(Empty);
3768       break;
3769 
3770     case EXPR_COAWAIT:
3771       S = new (Context) CoawaitExpr(Empty);
3772       break;
3773 
3774     case EXPR_COYIELD:
3775       S = new (Context) CoyieldExpr(Empty);
3776       break;
3777 
3778     case EXPR_DEPENDENT_COAWAIT:
3779       S = new (Context) DependentCoawaitExpr(Empty);
3780       break;
3781 
3782     case EXPR_CONCEPT_SPECIALIZATION: {
3783       unsigned numTemplateArgs = Record[ASTStmtReader::NumExprFields];
3784       S = ConceptSpecializationExpr::Create(Context, Empty, numTemplateArgs);
3785       break;
3786     }
3787 
3788     case EXPR_REQUIRES:
3789       unsigned numLocalParameters = Record[ASTStmtReader::NumExprFields];
3790       unsigned numRequirement = Record[ASTStmtReader::NumExprFields + 1];
3791       S = RequiresExpr::Create(Context, Empty, numLocalParameters,
3792                                numRequirement);
3793       break;
3794     }
3795 
3796     // We hit a STMT_STOP, so we're done with this expression.
3797     if (Finished)
3798       break;
3799 
3800     ++NumStatementsRead;
3801 
3802     if (S && !IsStmtReference) {
3803       Reader.Visit(S);
3804       StmtEntries[Cursor.GetCurrentBitNo()] = S;
3805     }
3806 
3807     assert(Record.getIdx() == Record.size() &&
3808            "Invalid deserialization of statement");
3809     StmtStack.push_back(S);
3810   }
3811 Done:
3812   assert(StmtStack.size() > PrevNumStmts && "Read too many sub-stmts!");
3813   assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
3814   return StmtStack.pop_back_val();
3815 }
3816