ASTReaderStmt.cpp revision c44d91c446f6d59722da53dba9d686560e81b762 
1//===--- ASTReaderStmt.cpp - Stmt/Expr Deserialization ----------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Statement/expression deserialization.  This implements the
11// ASTReader::ReadStmt method.
12//
13//===----------------------------------------------------------------------===//
14
15#include "clang/Serialization/ASTReader.h"
16#include "clang/AST/DeclCXX.h"
17#include "clang/AST/StmtVisitor.h"
18using namespace clang;
19using namespace clang::serialization;
20
21namespace clang {
22
23  class ASTStmtReader : public StmtVisitor<ASTStmtReader> {
24    ASTReader &Reader;
25    ASTReader::PerFileData &F;
26    llvm::BitstreamCursor &DeclsCursor;
27    const ASTReader::RecordData &Record;
28    unsigned &Idx;
29
30    SourceLocation ReadSourceLocation(const ASTReader::RecordData &R,
31                                      unsigned &I) {
32      return Reader.ReadSourceLocation(F, R, I);
33    }
34    SourceRange ReadSourceRange(const ASTReader::RecordData &R, unsigned &I) {
35      return Reader.ReadSourceRange(F, R, I);
36    }
37    TypeSourceInfo *GetTypeSourceInfo(const ASTReader::RecordData &R,
38                                      unsigned &I) {
39      return Reader.GetTypeSourceInfo(F, R, I);
40    }
41    void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc, DeclarationName Name,
42                                const ASTReader::RecordData &R, unsigned &I) {
43      Reader.ReadDeclarationNameLoc(F, DNLoc, Name, R, I);
44    }
45    void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo,
46                                const ASTReader::RecordData &R, unsigned &I) {
47      Reader.ReadDeclarationNameInfo(F, NameInfo, R, I);
48    }
49
50  public:
51    ASTStmtReader(ASTReader &Reader, ASTReader::PerFileData &F,
52                  llvm::BitstreamCursor &Cursor,
53                  const ASTReader::RecordData &Record, unsigned &Idx)
54      : Reader(Reader), F(F), DeclsCursor(Cursor), Record(Record), Idx(Idx) { }
55
56    /// \brief The number of record fields required for the Stmt class
57    /// itself.
58    static const unsigned NumStmtFields = 0;
59
60    /// \brief The number of record fields required for the Expr class
61    /// itself.
62    static const unsigned NumExprFields = NumStmtFields + 3;
63
64    /// \brief Read and initialize a ExplicitTemplateArgumentList structure.
65    void ReadExplicitTemplateArgumentList(ExplicitTemplateArgumentList &ArgList,
66                                          unsigned NumTemplateArgs);
67
68    void VisitStmt(Stmt *S);
69    void VisitNullStmt(NullStmt *S);
70    void VisitCompoundStmt(CompoundStmt *S);
71    void VisitSwitchCase(SwitchCase *S);
72    void VisitCaseStmt(CaseStmt *S);
73    void VisitDefaultStmt(DefaultStmt *S);
74    void VisitLabelStmt(LabelStmt *S);
75    void VisitIfStmt(IfStmt *S);
76    void VisitSwitchStmt(SwitchStmt *S);
77    void VisitWhileStmt(WhileStmt *S);
78    void VisitDoStmt(DoStmt *S);
79    void VisitForStmt(ForStmt *S);
80    void VisitGotoStmt(GotoStmt *S);
81    void VisitIndirectGotoStmt(IndirectGotoStmt *S);
82    void VisitContinueStmt(ContinueStmt *S);
83    void VisitBreakStmt(BreakStmt *S);
84    void VisitReturnStmt(ReturnStmt *S);
85    void VisitDeclStmt(DeclStmt *S);
86    void VisitAsmStmt(AsmStmt *S);
87    void VisitExpr(Expr *E);
88    void VisitPredefinedExpr(PredefinedExpr *E);
89    void VisitDeclRefExpr(DeclRefExpr *E);
90    void VisitIntegerLiteral(IntegerLiteral *E);
91    void VisitFloatingLiteral(FloatingLiteral *E);
92    void VisitImaginaryLiteral(ImaginaryLiteral *E);
93    void VisitStringLiteral(StringLiteral *E);
94    void VisitCharacterLiteral(CharacterLiteral *E);
95    void VisitParenExpr(ParenExpr *E);
96    void VisitParenListExpr(ParenListExpr *E);
97    void VisitUnaryOperator(UnaryOperator *E);
98    void VisitOffsetOfExpr(OffsetOfExpr *E);
99    void VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E);
100    void VisitArraySubscriptExpr(ArraySubscriptExpr *E);
101    void VisitCallExpr(CallExpr *E);
102    void VisitMemberExpr(MemberExpr *E);
103    void VisitCastExpr(CastExpr *E);
104    void VisitBinaryOperator(BinaryOperator *E);
105    void VisitCompoundAssignOperator(CompoundAssignOperator *E);
106    void VisitConditionalOperator(ConditionalOperator *E);
107    void VisitImplicitCastExpr(ImplicitCastExpr *E);
108    void VisitExplicitCastExpr(ExplicitCastExpr *E);
109    void VisitCStyleCastExpr(CStyleCastExpr *E);
110    void VisitCompoundLiteralExpr(CompoundLiteralExpr *E);
111    void VisitExtVectorElementExpr(ExtVectorElementExpr *E);
112    void VisitInitListExpr(InitListExpr *E);
113    void VisitDesignatedInitExpr(DesignatedInitExpr *E);
114    void VisitImplicitValueInitExpr(ImplicitValueInitExpr *E);
115    void VisitVAArgExpr(VAArgExpr *E);
116    void VisitAddrLabelExpr(AddrLabelExpr *E);
117    void VisitStmtExpr(StmtExpr *E);
118    void VisitTypesCompatibleExpr(TypesCompatibleExpr *E);
119    void VisitChooseExpr(ChooseExpr *E);
120    void VisitGNUNullExpr(GNUNullExpr *E);
121    void VisitShuffleVectorExpr(ShuffleVectorExpr *E);
122    void VisitBlockExpr(BlockExpr *E);
123    void VisitBlockDeclRefExpr(BlockDeclRefExpr *E);
124    void VisitObjCStringLiteral(ObjCStringLiteral *E);
125    void VisitObjCEncodeExpr(ObjCEncodeExpr *E);
126    void VisitObjCSelectorExpr(ObjCSelectorExpr *E);
127    void VisitObjCProtocolExpr(ObjCProtocolExpr *E);
128    void VisitObjCIvarRefExpr(ObjCIvarRefExpr *E);
129    void VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E);
130    void VisitObjCImplicitSetterGetterRefExpr(
131                            ObjCImplicitSetterGetterRefExpr *E);
132    void VisitObjCMessageExpr(ObjCMessageExpr *E);
133    void VisitObjCIsaExpr(ObjCIsaExpr *E);
134
135    void VisitObjCForCollectionStmt(ObjCForCollectionStmt *);
136    void VisitObjCAtCatchStmt(ObjCAtCatchStmt *);
137    void VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *);
138    void VisitObjCAtTryStmt(ObjCAtTryStmt *);
139    void VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *);
140    void VisitObjCAtThrowStmt(ObjCAtThrowStmt *);
141
142    // C++ Statements
143    void VisitCXXCatchStmt(CXXCatchStmt *S);
144    void VisitCXXTryStmt(CXXTryStmt *S);
145
146    void VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E);
147    void VisitCXXConstructExpr(CXXConstructExpr *E);
148    void VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E);
149    void VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
150    void VisitCXXStaticCastExpr(CXXStaticCastExpr *E);
151    void VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E);
152    void VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E);
153    void VisitCXXConstCastExpr(CXXConstCastExpr *E);
154    void VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E);
155    void VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E);
156    void VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E);
157    void VisitCXXTypeidExpr(CXXTypeidExpr *E);
158    void VisitCXXUuidofExpr(CXXUuidofExpr *E);
159    void VisitCXXThisExpr(CXXThisExpr *E);
160    void VisitCXXThrowExpr(CXXThrowExpr *E);
161    void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E);
162    void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E);
163
164    void VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E);
165    void VisitCXXNewExpr(CXXNewExpr *E);
166    void VisitCXXDeleteExpr(CXXDeleteExpr *E);
167    void VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E);
168
169    void VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E);
170
171    void VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E);
172    void VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E);
173    void VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E);
174
175    void VisitOverloadExpr(OverloadExpr *E);
176    void VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E);
177    void VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E);
178
179    void VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E);
180    void VisitCXXNoexceptExpr(CXXNoexceptExpr *E);
181  };
182}
183
184void ASTStmtReader::
185ReadExplicitTemplateArgumentList(ExplicitTemplateArgumentList &ArgList,
186                                 unsigned NumTemplateArgs) {
187  TemplateArgumentListInfo ArgInfo;
188  ArgInfo.setLAngleLoc(ReadSourceLocation(Record, Idx));
189  ArgInfo.setRAngleLoc(ReadSourceLocation(Record, Idx));
190  for (unsigned i = 0; i != NumTemplateArgs; ++i)
191    ArgInfo.addArgument(
192        Reader.ReadTemplateArgumentLoc(F, Record, Idx));
193  ArgList.initializeFrom(ArgInfo);
194}
195
196void ASTStmtReader::VisitStmt(Stmt *S) {
197  assert(Idx == NumStmtFields && "Incorrect statement field count");
198}
199
200void ASTStmtReader::VisitNullStmt(NullStmt *S) {
201  VisitStmt(S);
202  S->setSemiLoc(ReadSourceLocation(Record, Idx));
203}
204
205void ASTStmtReader::VisitCompoundStmt(CompoundStmt *S) {
206  VisitStmt(S);
207  llvm::SmallVector<Stmt *, 16> Stmts;
208  unsigned NumStmts = Record[Idx++];
209  while (NumStmts--)
210    Stmts.push_back(Reader.ReadSubStmt());
211  S->setStmts(*Reader.getContext(), Stmts.data(), Stmts.size());
212  S->setLBracLoc(ReadSourceLocation(Record, Idx));
213  S->setRBracLoc(ReadSourceLocation(Record, Idx));
214}
215
216void ASTStmtReader::VisitSwitchCase(SwitchCase *S) {
217  VisitStmt(S);
218  Reader.RecordSwitchCaseID(S, Record[Idx++]);
219}
220
221void ASTStmtReader::VisitCaseStmt(CaseStmt *S) {
222  VisitSwitchCase(S);
223  S->setLHS(Reader.ReadSubExpr());
224  S->setRHS(Reader.ReadSubExpr());
225  S->setSubStmt(Reader.ReadSubStmt());
226  S->setCaseLoc(ReadSourceLocation(Record, Idx));
227  S->setEllipsisLoc(ReadSourceLocation(Record, Idx));
228  S->setColonLoc(ReadSourceLocation(Record, Idx));
229}
230
231void ASTStmtReader::VisitDefaultStmt(DefaultStmt *S) {
232  VisitSwitchCase(S);
233  S->setSubStmt(Reader.ReadSubStmt());
234  S->setDefaultLoc(ReadSourceLocation(Record, Idx));
235  S->setColonLoc(ReadSourceLocation(Record, Idx));
236}
237
238void ASTStmtReader::VisitLabelStmt(LabelStmt *S) {
239  VisitStmt(S);
240  S->setID(Reader.GetIdentifierInfo(Record, Idx));
241  S->setSubStmt(Reader.ReadSubStmt());
242  S->setIdentLoc(ReadSourceLocation(Record, Idx));
243  S->setUsed(Record[Idx++]);
244  S->setUnusedAttribute(Record[Idx++]);
245  Reader.RecordLabelStmt(S, Record[Idx++]);
246}
247
248void ASTStmtReader::VisitIfStmt(IfStmt *S) {
249  VisitStmt(S);
250  S->setConditionVariable(*Reader.getContext(),
251                          cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
252  S->setCond(Reader.ReadSubExpr());
253  S->setThen(Reader.ReadSubStmt());
254  S->setElse(Reader.ReadSubStmt());
255  S->setIfLoc(ReadSourceLocation(Record, Idx));
256  S->setElseLoc(ReadSourceLocation(Record, Idx));
257}
258
259void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
260  VisitStmt(S);
261  S->setConditionVariable(*Reader.getContext(),
262                          cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
263  S->setCond(Reader.ReadSubExpr());
264  S->setBody(Reader.ReadSubStmt());
265  S->setSwitchLoc(ReadSourceLocation(Record, Idx));
266  if (Record[Idx++])
267    S->setAllEnumCasesCovered();
268
269  SwitchCase *PrevSC = 0;
270  for (unsigned N = Record.size(); Idx != N; ++Idx) {
271    SwitchCase *SC = Reader.getSwitchCaseWithID(Record[Idx]);
272    if (PrevSC)
273      PrevSC->setNextSwitchCase(SC);
274    else
275      S->setSwitchCaseList(SC);
276
277    // Retain this SwitchCase, since SwitchStmt::addSwitchCase() would
278    // normally retain it (but we aren't calling addSwitchCase).
279    SC->Retain();
280    PrevSC = SC;
281  }
282}
283
284void ASTStmtReader::VisitWhileStmt(WhileStmt *S) {
285  VisitStmt(S);
286  S->setConditionVariable(*Reader.getContext(),
287                          cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
288  S->setCond(Reader.ReadSubExpr());
289  S->setBody(Reader.ReadSubStmt());
290  S->setWhileLoc(ReadSourceLocation(Record, Idx));
291}
292
293void ASTStmtReader::VisitDoStmt(DoStmt *S) {
294  VisitStmt(S);
295  S->setCond(Reader.ReadSubExpr());
296  S->setBody(Reader.ReadSubStmt());
297  S->setDoLoc(ReadSourceLocation(Record, Idx));
298  S->setWhileLoc(ReadSourceLocation(Record, Idx));
299  S->setRParenLoc(ReadSourceLocation(Record, Idx));
300}
301
302void ASTStmtReader::VisitForStmt(ForStmt *S) {
303  VisitStmt(S);
304  S->setInit(Reader.ReadSubStmt());
305  S->setCond(Reader.ReadSubExpr());
306  S->setConditionVariable(*Reader.getContext(),
307                          cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
308  S->setInc(Reader.ReadSubExpr());
309  S->setBody(Reader.ReadSubStmt());
310  S->setForLoc(ReadSourceLocation(Record, Idx));
311  S->setLParenLoc(ReadSourceLocation(Record, Idx));
312  S->setRParenLoc(ReadSourceLocation(Record, Idx));
313}
314
315void ASTStmtReader::VisitGotoStmt(GotoStmt *S) {
316  VisitStmt(S);
317  Reader.SetLabelOf(S, Record[Idx++]);
318  S->setGotoLoc(ReadSourceLocation(Record, Idx));
319  S->setLabelLoc(ReadSourceLocation(Record, Idx));
320}
321
322void ASTStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
323  VisitStmt(S);
324  S->setGotoLoc(ReadSourceLocation(Record, Idx));
325  S->setStarLoc(ReadSourceLocation(Record, Idx));
326  S->setTarget(Reader.ReadSubExpr());
327}
328
329void ASTStmtReader::VisitContinueStmt(ContinueStmt *S) {
330  VisitStmt(S);
331  S->setContinueLoc(ReadSourceLocation(Record, Idx));
332}
333
334void ASTStmtReader::VisitBreakStmt(BreakStmt *S) {
335  VisitStmt(S);
336  S->setBreakLoc(ReadSourceLocation(Record, Idx));
337}
338
339void ASTStmtReader::VisitReturnStmt(ReturnStmt *S) {
340  VisitStmt(S);
341  S->setRetValue(Reader.ReadSubExpr());
342  S->setReturnLoc(ReadSourceLocation(Record, Idx));
343  S->setNRVOCandidate(cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
344}
345
346void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
347  VisitStmt(S);
348  S->setStartLoc(ReadSourceLocation(Record, Idx));
349  S->setEndLoc(ReadSourceLocation(Record, Idx));
350
351  if (Idx + 1 == Record.size()) {
352    // Single declaration
353    S->setDeclGroup(DeclGroupRef(Reader.GetDecl(Record[Idx++])));
354  } else {
355    llvm::SmallVector<Decl *, 16> Decls;
356    Decls.reserve(Record.size() - Idx);
357    for (unsigned N = Record.size(); Idx != N; ++Idx)
358      Decls.push_back(Reader.GetDecl(Record[Idx]));
359    S->setDeclGroup(DeclGroupRef(DeclGroup::Create(*Reader.getContext(),
360                                                   Decls.data(),
361                                                   Decls.size())));
362  }
363}
364
365void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
366  VisitStmt(S);
367  unsigned NumOutputs = Record[Idx++];
368  unsigned NumInputs = Record[Idx++];
369  unsigned NumClobbers = Record[Idx++];
370  S->setAsmLoc(ReadSourceLocation(Record, Idx));
371  S->setRParenLoc(ReadSourceLocation(Record, Idx));
372  S->setVolatile(Record[Idx++]);
373  S->setSimple(Record[Idx++]);
374  S->setMSAsm(Record[Idx++]);
375
376  S->setAsmString(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
377
378  // Outputs and inputs
379  llvm::SmallVector<IdentifierInfo *, 16> Names;
380  llvm::SmallVector<StringLiteral*, 16> Constraints;
381  llvm::SmallVector<Stmt*, 16> Exprs;
382  for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
383    Names.push_back(Reader.GetIdentifierInfo(Record, Idx));
384    Constraints.push_back(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
385    Exprs.push_back(Reader.ReadSubStmt());
386  }
387
388  // Constraints
389  llvm::SmallVector<StringLiteral*, 16> Clobbers;
390  for (unsigned I = 0; I != NumClobbers; ++I)
391    Clobbers.push_back(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
392
393  S->setOutputsAndInputsAndClobbers(*Reader.getContext(),
394                                    Names.data(), Constraints.data(),
395                                    Exprs.data(), NumOutputs, NumInputs,
396                                    Clobbers.data(), NumClobbers);
397}
398
399void ASTStmtReader::VisitExpr(Expr *E) {
400  VisitStmt(E);
401  E->setType(Reader.GetType(Record[Idx++]));
402  E->setTypeDependent(Record[Idx++]);
403  E->setValueDependent(Record[Idx++]);
404  assert(Idx == NumExprFields && "Incorrect expression field count");
405}
406
407void ASTStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
408  VisitExpr(E);
409  E->setLocation(ReadSourceLocation(Record, Idx));
410  E->setIdentType((PredefinedExpr::IdentType)Record[Idx++]);
411}
412
413void ASTStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
414  VisitExpr(E);
415
416  bool HasQualifier = Record[Idx++];
417  unsigned NumTemplateArgs = Record[Idx++];
418
419  E->DecoratedD.setInt((HasQualifier? DeclRefExpr::HasQualifierFlag : 0) |
420      (NumTemplateArgs ? DeclRefExpr::HasExplicitTemplateArgumentListFlag : 0));
421
422  if (HasQualifier) {
423    E->getNameQualifier()->NNS = Reader.ReadNestedNameSpecifier(Record, Idx);
424    E->getNameQualifier()->Range = ReadSourceRange(Record, Idx);
425  }
426
427  if (NumTemplateArgs)
428    ReadExplicitTemplateArgumentList(E->getExplicitTemplateArgs(),
429                                     NumTemplateArgs);
430
431  E->setDecl(cast<ValueDecl>(Reader.GetDecl(Record[Idx++])));
432  E->setLocation(ReadSourceLocation(Record, Idx));
433  ReadDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName(), Record, Idx);
434}
435
436void ASTStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
437  VisitExpr(E);
438  E->setLocation(ReadSourceLocation(Record, Idx));
439  E->setValue(*Reader.getContext(), Reader.ReadAPInt(Record, Idx));
440}
441
442void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
443  VisitExpr(E);
444  E->setValue(*Reader.getContext(), Reader.ReadAPFloat(Record, Idx));
445  E->setExact(Record[Idx++]);
446  E->setLocation(ReadSourceLocation(Record, Idx));
447}
448
449void ASTStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
450  VisitExpr(E);
451  E->setSubExpr(Reader.ReadSubExpr());
452}
453
454void ASTStmtReader::VisitStringLiteral(StringLiteral *E) {
455  VisitExpr(E);
456  unsigned Len = Record[Idx++];
457  assert(Record[Idx] == E->getNumConcatenated() &&
458         "Wrong number of concatenated tokens!");
459  ++Idx;
460  E->setWide(Record[Idx++]);
461
462  // Read string data
463  llvm::SmallString<16> Str(&Record[Idx], &Record[Idx] + Len);
464  E->setString(*Reader.getContext(), Str.str());
465  Idx += Len;
466
467  // Read source locations
468  for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
469    E->setStrTokenLoc(I, ReadSourceLocation(Record, Idx));
470}
471
472void ASTStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
473  VisitExpr(E);
474  E->setValue(Record[Idx++]);
475  E->setLocation(ReadSourceLocation(Record, Idx));
476  E->setWide(Record[Idx++]);
477}
478
479void ASTStmtReader::VisitParenExpr(ParenExpr *E) {
480  VisitExpr(E);
481  E->setLParen(ReadSourceLocation(Record, Idx));
482  E->setRParen(ReadSourceLocation(Record, Idx));
483  E->setSubExpr(Reader.ReadSubExpr());
484}
485
486void ASTStmtReader::VisitParenListExpr(ParenListExpr *E) {
487  VisitExpr(E);
488  unsigned NumExprs = Record[Idx++];
489  E->Exprs = new (*Reader.getContext()) Stmt*[NumExprs];
490  for (unsigned i = 0; i != NumExprs; ++i)
491    E->Exprs[i] = Reader.ReadSubStmt();
492  E->NumExprs = NumExprs;
493  E->LParenLoc = ReadSourceLocation(Record, Idx);
494  E->RParenLoc = ReadSourceLocation(Record, Idx);
495}
496
497void ASTStmtReader::VisitUnaryOperator(UnaryOperator *E) {
498  VisitExpr(E);
499  E->setSubExpr(Reader.ReadSubExpr());
500  E->setOpcode((UnaryOperator::Opcode)Record[Idx++]);
501  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
502}
503
504void ASTStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
505  typedef OffsetOfExpr::OffsetOfNode Node;
506  VisitExpr(E);
507  assert(E->getNumComponents() == Record[Idx]);
508  ++Idx;
509  assert(E->getNumExpressions() == Record[Idx]);
510  ++Idx;
511  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
512  E->setRParenLoc(ReadSourceLocation(Record, Idx));
513  E->setTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
514  for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
515    Node::Kind Kind = static_cast<Node::Kind>(Record[Idx++]);
516    SourceLocation Start = ReadSourceLocation(Record, Idx);
517    SourceLocation End = ReadSourceLocation(Record, Idx);
518    switch (Kind) {
519    case Node::Array:
520      E->setComponent(I, Node(Start, Record[Idx++], End));
521      break;
522
523    case Node::Field:
524      E->setComponent(I,
525             Node(Start,
526                  dyn_cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++])),
527                  End));
528      break;
529
530    case Node::Identifier:
531      E->setComponent(I, Node(Start, Reader.GetIdentifier(Record[Idx++]), End));
532      break;
533
534    case Node::Base: {
535      CXXBaseSpecifier *Base = new (*Reader.getContext()) CXXBaseSpecifier();
536      *Base = Reader.ReadCXXBaseSpecifier(F, Record, Idx);
537      E->setComponent(I, Node(Base));
538      break;
539    }
540    }
541  }
542
543  for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
544    E->setIndexExpr(I, Reader.ReadSubExpr());
545}
546
547void ASTStmtReader::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) {
548  VisitExpr(E);
549  E->setSizeof(Record[Idx++]);
550  if (Record[Idx] == 0) {
551    E->setArgument(Reader.ReadSubExpr());
552    ++Idx;
553  } else {
554    E->setArgument(GetTypeSourceInfo(Record, Idx));
555  }
556  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
557  E->setRParenLoc(ReadSourceLocation(Record, Idx));
558}
559
560void ASTStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
561  VisitExpr(E);
562  E->setLHS(Reader.ReadSubExpr());
563  E->setRHS(Reader.ReadSubExpr());
564  E->setRBracketLoc(ReadSourceLocation(Record, Idx));
565}
566
567void ASTStmtReader::VisitCallExpr(CallExpr *E) {
568  VisitExpr(E);
569  E->setNumArgs(*Reader.getContext(), Record[Idx++]);
570  E->setRParenLoc(ReadSourceLocation(Record, Idx));
571  E->setCallee(Reader.ReadSubExpr());
572  for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
573    E->setArg(I, Reader.ReadSubExpr());
574}
575
576void ASTStmtReader::VisitMemberExpr(MemberExpr *E) {
577  // Don't call VisitExpr, this is fully initialized at creation.
578  assert(E->getStmtClass() == Stmt::MemberExprClass &&
579         "It's a subclass, we must advance Idx!");
580}
581
582void ASTStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
583  VisitExpr(E);
584  E->setBase(Reader.ReadSubExpr());
585  E->setIsaMemberLoc(ReadSourceLocation(Record, Idx));
586  E->setArrow(Record[Idx++]);
587}
588
589void ASTStmtReader::VisitCastExpr(CastExpr *E) {
590  VisitExpr(E);
591  unsigned NumBaseSpecs = Record[Idx++];
592  assert(NumBaseSpecs == E->path_size());
593  E->setSubExpr(Reader.ReadSubExpr());
594  E->setCastKind((CastExpr::CastKind)Record[Idx++]);
595  CastExpr::path_iterator BaseI = E->path_begin();
596  while (NumBaseSpecs--) {
597    CXXBaseSpecifier *BaseSpec = new (*Reader.getContext()) CXXBaseSpecifier;
598    *BaseSpec = Reader.ReadCXXBaseSpecifier(F, Record, Idx);
599    *BaseI++ = BaseSpec;
600  }
601}
602
603void ASTStmtReader::VisitBinaryOperator(BinaryOperator *E) {
604  VisitExpr(E);
605  E->setLHS(Reader.ReadSubExpr());
606  E->setRHS(Reader.ReadSubExpr());
607  E->setOpcode((BinaryOperator::Opcode)Record[Idx++]);
608  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
609}
610
611void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
612  VisitBinaryOperator(E);
613  E->setComputationLHSType(Reader.GetType(Record[Idx++]));
614  E->setComputationResultType(Reader.GetType(Record[Idx++]));
615}
616
617void ASTStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
618  VisitExpr(E);
619  E->setCond(Reader.ReadSubExpr());
620  E->setLHS(Reader.ReadSubExpr());
621  E->setRHS(Reader.ReadSubExpr());
622  E->setSAVE(Reader.ReadSubExpr());
623  E->setQuestionLoc(ReadSourceLocation(Record, Idx));
624  E->setColonLoc(ReadSourceLocation(Record, Idx));
625}
626
627void ASTStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
628  VisitCastExpr(E);
629  E->setValueKind(static_cast<ExprValueKind>(Record[Idx++]));
630}
631
632void ASTStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
633  VisitCastExpr(E);
634  E->setTypeInfoAsWritten(GetTypeSourceInfo(Record, Idx));
635}
636
637void ASTStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
638  VisitExplicitCastExpr(E);
639  E->setLParenLoc(ReadSourceLocation(Record, Idx));
640  E->setRParenLoc(ReadSourceLocation(Record, Idx));
641}
642
643void ASTStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
644  VisitExpr(E);
645  E->setLParenLoc(ReadSourceLocation(Record, Idx));
646  E->setTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
647  E->setInitializer(Reader.ReadSubExpr());
648  E->setFileScope(Record[Idx++]);
649}
650
651void ASTStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
652  VisitExpr(E);
653  E->setBase(Reader.ReadSubExpr());
654  E->setAccessor(Reader.GetIdentifierInfo(Record, Idx));
655  E->setAccessorLoc(ReadSourceLocation(Record, Idx));
656}
657
658void ASTStmtReader::VisitInitListExpr(InitListExpr *E) {
659  VisitExpr(E);
660  unsigned NumInits = Record[Idx++];
661  E->reserveInits(*Reader.getContext(), NumInits);
662  for (unsigned I = 0; I != NumInits; ++I)
663    E->updateInit(*Reader.getContext(), I, Reader.ReadSubExpr());
664  E->setSyntacticForm(cast_or_null<InitListExpr>(Reader.ReadSubStmt()));
665  E->setLBraceLoc(ReadSourceLocation(Record, Idx));
666  E->setRBraceLoc(ReadSourceLocation(Record, Idx));
667  E->setInitializedFieldInUnion(
668                      cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++])));
669  E->sawArrayRangeDesignator(Record[Idx++]);
670}
671
672void ASTStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
673  typedef DesignatedInitExpr::Designator Designator;
674
675  VisitExpr(E);
676  unsigned NumSubExprs = Record[Idx++];
677  assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
678  for (unsigned I = 0; I != NumSubExprs; ++I)
679    E->setSubExpr(I, Reader.ReadSubExpr());
680  E->setEqualOrColonLoc(ReadSourceLocation(Record, Idx));
681  E->setGNUSyntax(Record[Idx++]);
682
683  llvm::SmallVector<Designator, 4> Designators;
684  while (Idx < Record.size()) {
685    switch ((DesignatorTypes)Record[Idx++]) {
686    case DESIG_FIELD_DECL: {
687      FieldDecl *Field = cast<FieldDecl>(Reader.GetDecl(Record[Idx++]));
688      SourceLocation DotLoc
689        = ReadSourceLocation(Record, Idx);
690      SourceLocation FieldLoc
691        = ReadSourceLocation(Record, Idx);
692      Designators.push_back(Designator(Field->getIdentifier(), DotLoc,
693                                       FieldLoc));
694      Designators.back().setField(Field);
695      break;
696    }
697
698    case DESIG_FIELD_NAME: {
699      const IdentifierInfo *Name = Reader.GetIdentifierInfo(Record, Idx);
700      SourceLocation DotLoc
701        = ReadSourceLocation(Record, Idx);
702      SourceLocation FieldLoc
703        = ReadSourceLocation(Record, Idx);
704      Designators.push_back(Designator(Name, DotLoc, FieldLoc));
705      break;
706    }
707
708    case DESIG_ARRAY: {
709      unsigned Index = Record[Idx++];
710      SourceLocation LBracketLoc
711        = ReadSourceLocation(Record, Idx);
712      SourceLocation RBracketLoc
713        = ReadSourceLocation(Record, Idx);
714      Designators.push_back(Designator(Index, LBracketLoc, RBracketLoc));
715      break;
716    }
717
718    case DESIG_ARRAY_RANGE: {
719      unsigned Index = Record[Idx++];
720      SourceLocation LBracketLoc
721        = ReadSourceLocation(Record, Idx);
722      SourceLocation EllipsisLoc
723        = ReadSourceLocation(Record, Idx);
724      SourceLocation RBracketLoc
725        = ReadSourceLocation(Record, Idx);
726      Designators.push_back(Designator(Index, LBracketLoc, EllipsisLoc,
727                                       RBracketLoc));
728      break;
729    }
730    }
731  }
732  E->setDesignators(*Reader.getContext(),
733                    Designators.data(), Designators.size());
734}
735
736void ASTStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
737  VisitExpr(E);
738}
739
740void ASTStmtReader::VisitVAArgExpr(VAArgExpr *E) {
741  VisitExpr(E);
742  E->setSubExpr(Reader.ReadSubExpr());
743  E->setWrittenTypeInfo(GetTypeSourceInfo(Record, Idx));
744  E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
745  E->setRParenLoc(ReadSourceLocation(Record, Idx));
746}
747
748void ASTStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
749  VisitExpr(E);
750  E->setAmpAmpLoc(ReadSourceLocation(Record, Idx));
751  E->setLabelLoc(ReadSourceLocation(Record, Idx));
752  Reader.SetLabelOf(E, Record[Idx++]);
753}
754
755void ASTStmtReader::VisitStmtExpr(StmtExpr *E) {
756  VisitExpr(E);
757  E->setLParenLoc(ReadSourceLocation(Record, Idx));
758  E->setRParenLoc(ReadSourceLocation(Record, Idx));
759  E->setSubStmt(cast_or_null<CompoundStmt>(Reader.ReadSubStmt()));
760}
761
762void ASTStmtReader::VisitTypesCompatibleExpr(TypesCompatibleExpr *E) {
763  VisitExpr(E);
764  E->setArgTInfo1(GetTypeSourceInfo(Record, Idx));
765  E->setArgTInfo2(GetTypeSourceInfo(Record, Idx));
766  E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
767  E->setRParenLoc(ReadSourceLocation(Record, Idx));
768}
769
770void ASTStmtReader::VisitChooseExpr(ChooseExpr *E) {
771  VisitExpr(E);
772  E->setCond(Reader.ReadSubExpr());
773  E->setLHS(Reader.ReadSubExpr());
774  E->setRHS(Reader.ReadSubExpr());
775  E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
776  E->setRParenLoc(ReadSourceLocation(Record, Idx));
777}
778
779void ASTStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
780  VisitExpr(E);
781  E->setTokenLocation(ReadSourceLocation(Record, Idx));
782}
783
784void ASTStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
785  VisitExpr(E);
786  llvm::SmallVector<Expr *, 16> Exprs;
787  unsigned NumExprs = Record[Idx++];
788  while (NumExprs--)
789    Exprs.push_back(Reader.ReadSubExpr());
790  E->setExprs(*Reader.getContext(), Exprs.data(), Exprs.size());
791  E->setBuiltinLoc(ReadSourceLocation(Record, Idx));
792  E->setRParenLoc(ReadSourceLocation(Record, Idx));
793}
794
795void ASTStmtReader::VisitBlockExpr(BlockExpr *E) {
796  VisitExpr(E);
797  E->setBlockDecl(cast_or_null<BlockDecl>(Reader.GetDecl(Record[Idx++])));
798  E->setHasBlockDeclRefExprs(Record[Idx++]);
799}
800
801void ASTStmtReader::VisitBlockDeclRefExpr(BlockDeclRefExpr *E) {
802  VisitExpr(E);
803  E->setDecl(cast<ValueDecl>(Reader.GetDecl(Record[Idx++])));
804  E->setLocation(ReadSourceLocation(Record, Idx));
805  E->setByRef(Record[Idx++]);
806  E->setConstQualAdded(Record[Idx++]);
807  E->setCopyConstructorExpr(Reader.ReadSubExpr());
808}
809
810//===----------------------------------------------------------------------===//
811// Objective-C Expressions and Statements
812
813void ASTStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
814  VisitExpr(E);
815  E->setString(cast<StringLiteral>(Reader.ReadSubStmt()));
816  E->setAtLoc(ReadSourceLocation(Record, Idx));
817}
818
819void ASTStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
820  VisitExpr(E);
821  E->setEncodedTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
822  E->setAtLoc(ReadSourceLocation(Record, Idx));
823  E->setRParenLoc(ReadSourceLocation(Record, Idx));
824}
825
826void ASTStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
827  VisitExpr(E);
828  E->setSelector(Reader.GetSelector(Record, Idx));
829  E->setAtLoc(ReadSourceLocation(Record, Idx));
830  E->setRParenLoc(ReadSourceLocation(Record, Idx));
831}
832
833void ASTStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
834  VisitExpr(E);
835  E->setProtocol(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
836  E->setAtLoc(ReadSourceLocation(Record, Idx));
837  E->setRParenLoc(ReadSourceLocation(Record, Idx));
838}
839
840void ASTStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
841  VisitExpr(E);
842  E->setDecl(cast<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
843  E->setLocation(ReadSourceLocation(Record, Idx));
844  E->setBase(Reader.ReadSubExpr());
845  E->setIsArrow(Record[Idx++]);
846  E->setIsFreeIvar(Record[Idx++]);
847}
848
849void ASTStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
850  VisitExpr(E);
851  E->setProperty(cast<ObjCPropertyDecl>(Reader.GetDecl(Record[Idx++])));
852  E->setLocation(ReadSourceLocation(Record, Idx));
853  E->SuperLoc = ReadSourceLocation(Record, Idx);
854  if (E->isSuperReceiver()) {
855    QualType T = Reader.GetType(Record[Idx++]);
856    E->BaseExprOrSuperType = T.getTypePtr();
857  }
858  else
859    E->setBase(Reader.ReadSubExpr());
860}
861
862void ASTStmtReader::VisitObjCImplicitSetterGetterRefExpr(
863                                      ObjCImplicitSetterGetterRefExpr *E) {
864  VisitExpr(E);
865  E->setGetterMethod(
866                 cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
867  E->setSetterMethod(
868                 cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
869  E->setInterfaceDecl(
870              cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
871  E->setBase(Reader.ReadSubExpr());
872  E->setLocation(ReadSourceLocation(Record, Idx));
873  E->setClassLoc(ReadSourceLocation(Record, Idx));
874  E->SuperLoc = ReadSourceLocation(Record, Idx);
875  E->SuperTy = Reader.GetType(Record[Idx++]);
876}
877
878void ASTStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
879  VisitExpr(E);
880  assert(Record[Idx] == E->getNumArgs());
881  ++Idx;
882  ObjCMessageExpr::ReceiverKind Kind
883    = static_cast<ObjCMessageExpr::ReceiverKind>(Record[Idx++]);
884  switch (Kind) {
885  case ObjCMessageExpr::Instance:
886    E->setInstanceReceiver(Reader.ReadSubExpr());
887    break;
888
889  case ObjCMessageExpr::Class:
890    E->setClassReceiver(GetTypeSourceInfo(Record, Idx));
891    break;
892
893  case ObjCMessageExpr::SuperClass:
894  case ObjCMessageExpr::SuperInstance: {
895    QualType T = Reader.GetType(Record[Idx++]);
896    SourceLocation SuperLoc = ReadSourceLocation(Record, Idx);
897    E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
898    break;
899  }
900  }
901
902  assert(Kind == E->getReceiverKind());
903
904  if (Record[Idx++])
905    E->setMethodDecl(cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
906  else
907    E->setSelector(Reader.GetSelector(Record, Idx));
908
909  E->setLeftLoc(ReadSourceLocation(Record, Idx));
910  E->setRightLoc(ReadSourceLocation(Record, Idx));
911
912  for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
913    E->setArg(I, Reader.ReadSubExpr());
914}
915
916void ASTStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
917  VisitStmt(S);
918  S->setElement(Reader.ReadSubStmt());
919  S->setCollection(Reader.ReadSubExpr());
920  S->setBody(Reader.ReadSubStmt());
921  S->setForLoc(ReadSourceLocation(Record, Idx));
922  S->setRParenLoc(ReadSourceLocation(Record, Idx));
923}
924
925void ASTStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
926  VisitStmt(S);
927  S->setCatchBody(Reader.ReadSubStmt());
928  S->setCatchParamDecl(cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
929  S->setAtCatchLoc(ReadSourceLocation(Record, Idx));
930  S->setRParenLoc(ReadSourceLocation(Record, Idx));
931}
932
933void ASTStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
934  VisitStmt(S);
935  S->setFinallyBody(Reader.ReadSubStmt());
936  S->setAtFinallyLoc(ReadSourceLocation(Record, Idx));
937}
938
939void ASTStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
940  VisitStmt(S);
941  assert(Record[Idx] == S->getNumCatchStmts());
942  ++Idx;
943  bool HasFinally = Record[Idx++];
944  S->setTryBody(Reader.ReadSubStmt());
945  for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
946    S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Reader.ReadSubStmt()));
947
948  if (HasFinally)
949    S->setFinallyStmt(Reader.ReadSubStmt());
950  S->setAtTryLoc(ReadSourceLocation(Record, Idx));
951}
952
953void ASTStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
954  VisitStmt(S);
955  S->setSynchExpr(Reader.ReadSubStmt());
956  S->setSynchBody(Reader.ReadSubStmt());
957  S->setAtSynchronizedLoc(ReadSourceLocation(Record, Idx));
958}
959
960void ASTStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
961  VisitStmt(S);
962  S->setThrowExpr(Reader.ReadSubStmt());
963  S->setThrowLoc(ReadSourceLocation(Record, Idx));
964}
965
966//===----------------------------------------------------------------------===//
967// C++ Expressions and Statements
968//===----------------------------------------------------------------------===//
969
970void ASTStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
971  VisitStmt(S);
972  S->CatchLoc = ReadSourceLocation(Record, Idx);
973  S->ExceptionDecl = cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++]));
974  S->HandlerBlock = Reader.ReadSubStmt();
975}
976
977void ASTStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
978  VisitStmt(S);
979  assert(Record[Idx] == S->getNumHandlers() && "NumStmtFields is wrong ?");
980  ++Idx;
981  S->TryLoc = ReadSourceLocation(Record, Idx);
982  S->getStmts()[0] = Reader.ReadSubStmt();
983  for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
984    S->getStmts()[i + 1] = Reader.ReadSubStmt();
985}
986
987void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
988  VisitCallExpr(E);
989  E->setOperator((OverloadedOperatorKind)Record[Idx++]);
990}
991
992void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
993  VisitExpr(E);
994  E->NumArgs = Record[Idx++];
995  if (E->NumArgs)
996    E->Args = new (*Reader.getContext()) Stmt*[E->NumArgs];
997  for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
998    E->setArg(I, Reader.ReadSubExpr());
999  E->setConstructor(cast<CXXConstructorDecl>(Reader.GetDecl(Record[Idx++])));
1000  E->setLocation(ReadSourceLocation(Record, Idx));
1001  E->setElidable(Record[Idx++]);
1002  E->setRequiresZeroInitialization(Record[Idx++]);
1003  E->setConstructionKind((CXXConstructExpr::ConstructionKind)Record[Idx++]);
1004}
1005
1006void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1007  VisitCXXConstructExpr(E);
1008  E->Type = GetTypeSourceInfo(Record, Idx);
1009  E->RParenLoc = ReadSourceLocation(Record, Idx);
1010}
1011
1012void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1013  VisitExplicitCastExpr(E);
1014  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
1015}
1016
1017void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1018  return VisitCXXNamedCastExpr(E);
1019}
1020
1021void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1022  return VisitCXXNamedCastExpr(E);
1023}
1024
1025void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1026  return VisitCXXNamedCastExpr(E);
1027}
1028
1029void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1030  return VisitCXXNamedCastExpr(E);
1031}
1032
1033void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1034  VisitExplicitCastExpr(E);
1035  E->setTypeBeginLoc(ReadSourceLocation(Record, Idx));
1036  E->setRParenLoc(ReadSourceLocation(Record, Idx));
1037}
1038
1039void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1040  VisitExpr(E);
1041  E->setValue(Record[Idx++]);
1042  E->setLocation(ReadSourceLocation(Record, Idx));
1043}
1044
1045void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1046  VisitExpr(E);
1047  E->setLocation(ReadSourceLocation(Record, Idx));
1048}
1049
1050void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1051  VisitExpr(E);
1052  E->setSourceRange(ReadSourceRange(Record, Idx));
1053  if (E->isTypeOperand()) { // typeid(int)
1054    E->setTypeOperandSourceInfo(
1055        GetTypeSourceInfo(Record, Idx));
1056    return;
1057  }
1058
1059  // typeid(42+2)
1060  E->setExprOperand(Reader.ReadSubExpr());
1061}
1062void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
1063  VisitExpr(E);
1064  E->setSourceRange(ReadSourceRange(Record, Idx));
1065  if (E->isTypeOperand()) { // __uuidof(ComType)
1066    E->setTypeOperandSourceInfo(
1067        GetTypeSourceInfo(Record, Idx));
1068    return;
1069  }
1070
1071  // __uuidof(expr)
1072  E->setExprOperand(Reader.ReadSubExpr());
1073}
1074
1075void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1076  VisitExpr(E);
1077  E->setLocation(ReadSourceLocation(Record, Idx));
1078  E->setImplicit(Record[Idx++]);
1079}
1080
1081void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1082  VisitExpr(E);
1083  E->setThrowLoc(ReadSourceLocation(Record, Idx));
1084  E->setSubExpr(Reader.ReadSubExpr());
1085}
1086
1087void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1088  VisitExpr(E);
1089
1090  assert(Record[Idx] == E->Param.getInt() && "We messed up at creation ?");
1091  ++Idx; // HasOtherExprStored and SubExpr was handled during creation.
1092  E->Param.setPointer(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
1093  E->Loc = ReadSourceLocation(Record, Idx);
1094}
1095
1096void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1097  VisitExpr(E);
1098  E->setTemporary(Reader.ReadCXXTemporary(Record, Idx));
1099  E->setSubExpr(Reader.ReadSubExpr());
1100}
1101
1102void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1103  VisitExpr(E);
1104  E->TypeInfo = GetTypeSourceInfo(Record, Idx);
1105  E->RParenLoc = ReadSourceLocation(Record, Idx);
1106}
1107
1108void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1109  VisitExpr(E);
1110  E->setGlobalNew(Record[Idx++]);
1111  E->setHasInitializer(Record[Idx++]);
1112  bool isArray = Record[Idx++];
1113  unsigned NumPlacementArgs = Record[Idx++];
1114  unsigned NumCtorArgs = Record[Idx++];
1115  E->setOperatorNew(cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
1116  E->setOperatorDelete(
1117                    cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
1118  E->setConstructor(
1119               cast_or_null<CXXConstructorDecl>(Reader.GetDecl(Record[Idx++])));
1120  E->AllocatedTypeInfo = GetTypeSourceInfo(Record, Idx);
1121  SourceRange TypeIdParens;
1122  TypeIdParens.setBegin(ReadSourceLocation(Record, Idx));
1123  TypeIdParens.setEnd(ReadSourceLocation(Record, Idx));
1124  E->TypeIdParens = TypeIdParens;
1125  E->setStartLoc(ReadSourceLocation(Record, Idx));
1126  E->setEndLoc(ReadSourceLocation(Record, Idx));
1127
1128  E->AllocateArgsArray(*Reader.getContext(), isArray, NumPlacementArgs,
1129                       NumCtorArgs);
1130
1131  // Install all the subexpressions.
1132  for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),e = E->raw_arg_end();
1133       I != e; ++I)
1134    *I = Reader.ReadSubStmt();
1135}
1136
1137void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1138  VisitExpr(E);
1139  E->GlobalDelete = Record[Idx++];
1140  E->ArrayForm = Record[Idx++];
1141  E->ArrayFormAsWritten = Record[Idx++];
1142  E->OperatorDelete = cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
1143  E->Argument = Reader.ReadSubExpr();
1144  E->Loc = ReadSourceLocation(Record, Idx);
1145}
1146
1147void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1148  VisitExpr(E);
1149
1150  E->setBase(Reader.ReadSubExpr());
1151  E->setArrow(Record[Idx++]);
1152  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
1153  E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
1154  E->setQualifierRange(ReadSourceRange(Record, Idx));
1155  E->setScopeTypeInfo(GetTypeSourceInfo(Record, Idx));
1156  E->setColonColonLoc(ReadSourceLocation(Record, Idx));
1157  E->setTildeLoc(ReadSourceLocation(Record, Idx));
1158
1159  IdentifierInfo *II = Reader.GetIdentifierInfo(Record, Idx);
1160  if (II)
1161    E->setDestroyedType(II, ReadSourceLocation(Record, Idx));
1162  else
1163    E->setDestroyedType(GetTypeSourceInfo(Record, Idx));
1164}
1165
1166void ASTStmtReader::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E) {
1167  VisitExpr(E);
1168  unsigned NumTemps = Record[Idx++];
1169  if (NumTemps) {
1170    E->setNumTemporaries(*Reader.getContext(), NumTemps);
1171    for (unsigned i = 0; i != NumTemps; ++i)
1172      E->setTemporary(i, Reader.ReadCXXTemporary(Record, Idx));
1173  }
1174  E->setSubExpr(Reader.ReadSubExpr());
1175}
1176
1177void
1178ASTStmtReader::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
1179  VisitExpr(E);
1180
1181  unsigned NumTemplateArgs = Record[Idx++];
1182  assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
1183         "Read wrong record during creation ?");
1184  if (E->hasExplicitTemplateArgs())
1185    ReadExplicitTemplateArgumentList(E->getExplicitTemplateArgs(),
1186                                     NumTemplateArgs);
1187
1188  E->setBase(Reader.ReadSubExpr());
1189  E->setBaseType(Reader.GetType(Record[Idx++]));
1190  E->setArrow(Record[Idx++]);
1191  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
1192  E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
1193  E->setQualifierRange(ReadSourceRange(Record, Idx));
1194  E->setFirstQualifierFoundInScope(
1195                        cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++])));
1196  ReadDeclarationNameInfo(E->MemberNameInfo, Record, Idx);
1197}
1198
1199void
1200ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1201  VisitExpr(E);
1202
1203  unsigned NumTemplateArgs = Record[Idx++];
1204  assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
1205         "Read wrong record during creation ?");
1206  if (E->hasExplicitTemplateArgs())
1207    ReadExplicitTemplateArgumentList(E->getExplicitTemplateArgs(),
1208                                     NumTemplateArgs);
1209
1210  ReadDeclarationNameInfo(E->NameInfo, Record, Idx);
1211  E->setQualifierRange(ReadSourceRange(Record, Idx));
1212  E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
1213}
1214
1215void
1216ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1217  VisitExpr(E);
1218  assert(Record[Idx] == E->arg_size() && "Read wrong record during creation ?");
1219  ++Idx; // NumArgs;
1220  for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
1221    E->setArg(I, Reader.ReadSubExpr());
1222  E->Type = GetTypeSourceInfo(Record, Idx);
1223  E->setLParenLoc(ReadSourceLocation(Record, Idx));
1224  E->setRParenLoc(ReadSourceLocation(Record, Idx));
1225}
1226
1227void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
1228  VisitExpr(E);
1229
1230  unsigned NumTemplateArgs = Record[Idx++];
1231  assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
1232         "Read wrong record during creation ?");
1233  if (E->hasExplicitTemplateArgs())
1234    ReadExplicitTemplateArgumentList(E->getExplicitTemplateArgs(),
1235                                     NumTemplateArgs);
1236
1237  unsigned NumDecls = Record[Idx++];
1238  UnresolvedSet<8> Decls;
1239  for (unsigned i = 0; i != NumDecls; ++i) {
1240    NamedDecl *D = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
1241    AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
1242    Decls.addDecl(D, AS);
1243  }
1244  E->initializeResults(*Reader.getContext(), Decls.begin(), Decls.end());
1245
1246  ReadDeclarationNameInfo(E->NameInfo, Record, Idx);
1247  E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
1248  E->setQualifierRange(ReadSourceRange(Record, Idx));
1249}
1250
1251void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
1252  VisitOverloadExpr(E);
1253  E->setArrow(Record[Idx++]);
1254  E->setHasUnresolvedUsing(Record[Idx++]);
1255  E->setBase(Reader.ReadSubExpr());
1256  E->setBaseType(Reader.GetType(Record[Idx++]));
1257  E->setOperatorLoc(ReadSourceLocation(Record, Idx));
1258}
1259
1260void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
1261  VisitOverloadExpr(E);
1262  E->setRequiresADL(Record[Idx++]);
1263  E->setOverloaded(Record[Idx++]);
1264  E->setNamingClass(cast_or_null<CXXRecordDecl>(Reader.GetDecl(Record[Idx++])));
1265}
1266
1267void ASTStmtReader::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
1268  VisitExpr(E);
1269  E->UTT = (UnaryTypeTrait)Record[Idx++];
1270  E->Value = (bool)Record[Idx++];
1271  SourceRange Range = ReadSourceRange(Record, Idx);
1272  E->Loc = Range.getBegin();
1273  E->RParen = Range.getEnd();
1274  E->QueriedType = GetTypeSourceInfo(Record, Idx);
1275}
1276
1277void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1278  VisitExpr(E);
1279  E->Value = (bool)Record[Idx++];
1280  E->Range = ReadSourceRange(Record, Idx);
1281  E->Operand = Reader.ReadSubExpr();
1282}
1283
1284Stmt *ASTReader::ReadStmt(PerFileData &F) {
1285  switch (ReadingKind) {
1286  case Read_Decl:
1287  case Read_Type:
1288    return ReadStmtFromStream(F);
1289  case Read_Stmt:
1290    return ReadSubStmt();
1291  }
1292
1293  llvm_unreachable("ReadingKind not set ?");
1294  return 0;
1295}
1296
1297Expr *ASTReader::ReadExpr(PerFileData &F) {
1298  return cast_or_null<Expr>(ReadStmt(F));
1299}
1300
1301Expr *ASTReader::ReadSubExpr() {
1302  return cast_or_null<Expr>(ReadSubStmt());
1303}
1304
1305// Within the bitstream, expressions are stored in Reverse Polish
1306// Notation, with each of the subexpressions preceding the
1307// expression they are stored in. Subexpressions are stored from last to first.
1308// To evaluate expressions, we continue reading expressions and placing them on
1309// the stack, with expressions having operands removing those operands from the
1310// stack. Evaluation terminates when we see a STMT_STOP record, and
1311// the single remaining expression on the stack is our result.
1312Stmt *ASTReader::ReadStmtFromStream(PerFileData &F) {
1313
1314  ReadingKindTracker ReadingKind(Read_Stmt, *this);
1315  llvm::BitstreamCursor &Cursor = F.DeclsCursor;
1316
1317#ifndef NDEBUG
1318  unsigned PrevNumStmts = StmtStack.size();
1319#endif
1320
1321  RecordData Record;
1322  unsigned Idx;
1323  ASTStmtReader Reader(*this, F, Cursor, Record, Idx);
1324  Stmt::EmptyShell Empty;
1325
1326  while (true) {
1327    unsigned Code = Cursor.ReadCode();
1328    if (Code == llvm::bitc::END_BLOCK) {
1329      if (Cursor.ReadBlockEnd()) {
1330        Error("error at end of block in AST file");
1331        return 0;
1332      }
1333      break;
1334    }
1335
1336    if (Code == llvm::bitc::ENTER_SUBBLOCK) {
1337      // No known subblocks, always skip them.
1338      Cursor.ReadSubBlockID();
1339      if (Cursor.SkipBlock()) {
1340        Error("malformed block record in AST file");
1341        return 0;
1342      }
1343      continue;
1344    }
1345
1346    if (Code == llvm::bitc::DEFINE_ABBREV) {
1347      Cursor.ReadAbbrevRecord();
1348      continue;
1349    }
1350
1351    Stmt *S = 0;
1352    Idx = 0;
1353    Record.clear();
1354    bool Finished = false;
1355    switch ((StmtCode)Cursor.ReadRecord(Code, Record)) {
1356    case STMT_STOP:
1357      Finished = true;
1358      break;
1359
1360    case STMT_NULL_PTR:
1361      S = 0;
1362      break;
1363
1364    case STMT_NULL:
1365      S = new (Context) NullStmt(Empty);
1366      break;
1367
1368    case STMT_COMPOUND:
1369      S = new (Context) CompoundStmt(Empty);
1370      break;
1371
1372    case STMT_CASE:
1373      S = new (Context) CaseStmt(Empty);
1374      break;
1375
1376    case STMT_DEFAULT:
1377      S = new (Context) DefaultStmt(Empty);
1378      break;
1379
1380    case STMT_LABEL:
1381      S = new (Context) LabelStmt(Empty);
1382      break;
1383
1384    case STMT_IF:
1385      S = new (Context) IfStmt(Empty);
1386      break;
1387
1388    case STMT_SWITCH:
1389      S = new (Context) SwitchStmt(Empty);
1390      break;
1391
1392    case STMT_WHILE:
1393      S = new (Context) WhileStmt(Empty);
1394      break;
1395
1396    case STMT_DO:
1397      S = new (Context) DoStmt(Empty);
1398      break;
1399
1400    case STMT_FOR:
1401      S = new (Context) ForStmt(Empty);
1402      break;
1403
1404    case STMT_GOTO:
1405      S = new (Context) GotoStmt(Empty);
1406      break;
1407
1408    case STMT_INDIRECT_GOTO:
1409      S = new (Context) IndirectGotoStmt(Empty);
1410      break;
1411
1412    case STMT_CONTINUE:
1413      S = new (Context) ContinueStmt(Empty);
1414      break;
1415
1416    case STMT_BREAK:
1417      S = new (Context) BreakStmt(Empty);
1418      break;
1419
1420    case STMT_RETURN:
1421      S = new (Context) ReturnStmt(Empty);
1422      break;
1423
1424    case STMT_DECL:
1425      S = new (Context) DeclStmt(Empty);
1426      break;
1427
1428    case STMT_ASM:
1429      S = new (Context) AsmStmt(Empty);
1430      break;
1431
1432    case EXPR_PREDEFINED:
1433      S = new (Context) PredefinedExpr(Empty);
1434      break;
1435
1436    case EXPR_DECL_REF:
1437      S = DeclRefExpr::CreateEmpty(*Context,
1438                         /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
1439                  /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 1]);
1440      break;
1441
1442    case EXPR_INTEGER_LITERAL:
1443      S = IntegerLiteral::Create(*Context, Empty);
1444      break;
1445
1446    case EXPR_FLOATING_LITERAL:
1447      S = FloatingLiteral::Create(*Context, Empty);
1448      break;
1449
1450    case EXPR_IMAGINARY_LITERAL:
1451      S = new (Context) ImaginaryLiteral(Empty);
1452      break;
1453
1454    case EXPR_STRING_LITERAL:
1455      S = StringLiteral::CreateEmpty(*Context,
1456                                     Record[ASTStmtReader::NumExprFields + 1]);
1457      break;
1458
1459    case EXPR_CHARACTER_LITERAL:
1460      S = new (Context) CharacterLiteral(Empty);
1461      break;
1462
1463    case EXPR_PAREN:
1464      S = new (Context) ParenExpr(Empty);
1465      break;
1466
1467    case EXPR_PAREN_LIST:
1468      S = new (Context) ParenListExpr(Empty);
1469      break;
1470
1471    case EXPR_UNARY_OPERATOR:
1472      S = new (Context) UnaryOperator(Empty);
1473      break;
1474
1475    case EXPR_OFFSETOF:
1476      S = OffsetOfExpr::CreateEmpty(*Context,
1477                                    Record[ASTStmtReader::NumExprFields],
1478                                    Record[ASTStmtReader::NumExprFields + 1]);
1479      break;
1480
1481    case EXPR_SIZEOF_ALIGN_OF:
1482      S = new (Context) SizeOfAlignOfExpr(Empty);
1483      break;
1484
1485    case EXPR_ARRAY_SUBSCRIPT:
1486      S = new (Context) ArraySubscriptExpr(Empty);
1487      break;
1488
1489    case EXPR_CALL:
1490      S = new (Context) CallExpr(*Context, Stmt::CallExprClass, Empty);
1491      break;
1492
1493    case EXPR_MEMBER: {
1494      // We load everything here and fully initialize it at creation.
1495      // That way we can use MemberExpr::Create and don't have to duplicate its
1496      // logic with a MemberExpr::CreateEmpty.
1497
1498      assert(Idx == 0);
1499      NestedNameSpecifier *NNS = 0;
1500      SourceRange QualifierRange;
1501      if (Record[Idx++]) { // HasQualifier.
1502        NNS = ReadNestedNameSpecifier(Record, Idx);
1503        QualifierRange = ReadSourceRange(F, Record, Idx);
1504      }
1505
1506      TemplateArgumentListInfo ArgInfo;
1507      unsigned NumTemplateArgs = Record[Idx++];
1508      if (NumTemplateArgs) {
1509        ArgInfo.setLAngleLoc(ReadSourceLocation(F, Record, Idx));
1510        ArgInfo.setRAngleLoc(ReadSourceLocation(F, Record, Idx));
1511        for (unsigned i = 0; i != NumTemplateArgs; ++i)
1512          ArgInfo.addArgument(ReadTemplateArgumentLoc(F, Record, Idx));
1513      }
1514
1515      NamedDecl *FoundD = cast_or_null<NamedDecl>(GetDecl(Record[Idx++]));
1516      AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
1517      DeclAccessPair FoundDecl = DeclAccessPair::make(FoundD, AS);
1518
1519      QualType T = GetType(Record[Idx++]);
1520      Expr *Base = ReadSubExpr();
1521      ValueDecl *MemberD = cast<ValueDecl>(GetDecl(Record[Idx++]));
1522      SourceLocation MemberLoc = ReadSourceLocation(F, Record, Idx);
1523      DeclarationNameInfo MemberNameInfo(MemberD->getDeclName(), MemberLoc);
1524      bool IsArrow = Record[Idx++];
1525
1526      S = MemberExpr::Create(*Context, Base, IsArrow, NNS, QualifierRange,
1527                             MemberD, FoundDecl, MemberNameInfo,
1528                             NumTemplateArgs ? &ArgInfo : 0, T);
1529      ReadDeclarationNameLoc(F, cast<MemberExpr>(S)->MemberDNLoc,
1530                             MemberD->getDeclName(), Record, Idx);
1531      break;
1532    }
1533
1534    case EXPR_BINARY_OPERATOR:
1535      S = new (Context) BinaryOperator(Empty);
1536      break;
1537
1538    case EXPR_COMPOUND_ASSIGN_OPERATOR:
1539      S = new (Context) CompoundAssignOperator(Empty);
1540      break;
1541
1542    case EXPR_CONDITIONAL_OPERATOR:
1543      S = new (Context) ConditionalOperator(Empty);
1544      break;
1545
1546    case EXPR_IMPLICIT_CAST:
1547      S = ImplicitCastExpr::CreateEmpty(*Context,
1548                       /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
1549      break;
1550
1551    case EXPR_CSTYLE_CAST:
1552      S = CStyleCastExpr::CreateEmpty(*Context,
1553                       /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
1554      break;
1555
1556    case EXPR_COMPOUND_LITERAL:
1557      S = new (Context) CompoundLiteralExpr(Empty);
1558      break;
1559
1560    case EXPR_EXT_VECTOR_ELEMENT:
1561      S = new (Context) ExtVectorElementExpr(Empty);
1562      break;
1563
1564    case EXPR_INIT_LIST:
1565      S = new (Context) InitListExpr(*getContext(), Empty);
1566      break;
1567
1568    case EXPR_DESIGNATED_INIT:
1569      S = DesignatedInitExpr::CreateEmpty(*Context,
1570                                     Record[ASTStmtReader::NumExprFields] - 1);
1571
1572      break;
1573
1574    case EXPR_IMPLICIT_VALUE_INIT:
1575      S = new (Context) ImplicitValueInitExpr(Empty);
1576      break;
1577
1578    case EXPR_VA_ARG:
1579      S = new (Context) VAArgExpr(Empty);
1580      break;
1581
1582    case EXPR_ADDR_LABEL:
1583      S = new (Context) AddrLabelExpr(Empty);
1584      break;
1585
1586    case EXPR_STMT:
1587      S = new (Context) StmtExpr(Empty);
1588      break;
1589
1590    case EXPR_TYPES_COMPATIBLE:
1591      S = new (Context) TypesCompatibleExpr(Empty);
1592      break;
1593
1594    case EXPR_CHOOSE:
1595      S = new (Context) ChooseExpr(Empty);
1596      break;
1597
1598    case EXPR_GNU_NULL:
1599      S = new (Context) GNUNullExpr(Empty);
1600      break;
1601
1602    case EXPR_SHUFFLE_VECTOR:
1603      S = new (Context) ShuffleVectorExpr(Empty);
1604      break;
1605
1606    case EXPR_BLOCK:
1607      S = new (Context) BlockExpr(Empty);
1608      break;
1609
1610    case EXPR_BLOCK_DECL_REF:
1611      S = new (Context) BlockDeclRefExpr(Empty);
1612      break;
1613
1614    case EXPR_OBJC_STRING_LITERAL:
1615      S = new (Context) ObjCStringLiteral(Empty);
1616      break;
1617    case EXPR_OBJC_ENCODE:
1618      S = new (Context) ObjCEncodeExpr(Empty);
1619      break;
1620    case EXPR_OBJC_SELECTOR_EXPR:
1621      S = new (Context) ObjCSelectorExpr(Empty);
1622      break;
1623    case EXPR_OBJC_PROTOCOL_EXPR:
1624      S = new (Context) ObjCProtocolExpr(Empty);
1625      break;
1626    case EXPR_OBJC_IVAR_REF_EXPR:
1627      S = new (Context) ObjCIvarRefExpr(Empty);
1628      break;
1629    case EXPR_OBJC_PROPERTY_REF_EXPR:
1630      S = new (Context) ObjCPropertyRefExpr(Empty);
1631      break;
1632    case EXPR_OBJC_KVC_REF_EXPR:
1633      S = new (Context) ObjCImplicitSetterGetterRefExpr(Empty);
1634      break;
1635    case EXPR_OBJC_MESSAGE_EXPR:
1636      S = ObjCMessageExpr::CreateEmpty(*Context,
1637                                     Record[ASTStmtReader::NumExprFields]);
1638      break;
1639    case EXPR_OBJC_ISA:
1640      S = new (Context) ObjCIsaExpr(Empty);
1641      break;
1642    case STMT_OBJC_FOR_COLLECTION:
1643      S = new (Context) ObjCForCollectionStmt(Empty);
1644      break;
1645    case STMT_OBJC_CATCH:
1646      S = new (Context) ObjCAtCatchStmt(Empty);
1647      break;
1648    case STMT_OBJC_FINALLY:
1649      S = new (Context) ObjCAtFinallyStmt(Empty);
1650      break;
1651    case STMT_OBJC_AT_TRY:
1652      S = ObjCAtTryStmt::CreateEmpty(*Context,
1653                                     Record[ASTStmtReader::NumStmtFields],
1654                                     Record[ASTStmtReader::NumStmtFields + 1]);
1655      break;
1656    case STMT_OBJC_AT_SYNCHRONIZED:
1657      S = new (Context) ObjCAtSynchronizedStmt(Empty);
1658      break;
1659    case STMT_OBJC_AT_THROW:
1660      S = new (Context) ObjCAtThrowStmt(Empty);
1661      break;
1662
1663    case STMT_CXX_CATCH:
1664      S = new (Context) CXXCatchStmt(Empty);
1665      break;
1666
1667    case STMT_CXX_TRY:
1668      S = CXXTryStmt::Create(*Context, Empty,
1669             /*NumHandlers=*/Record[ASTStmtReader::NumStmtFields]);
1670      break;
1671
1672    case EXPR_CXX_OPERATOR_CALL:
1673      S = new (Context) CXXOperatorCallExpr(*Context, Empty);
1674      break;
1675
1676    case EXPR_CXX_MEMBER_CALL:
1677      S = new (Context) CXXMemberCallExpr(*Context, Empty);
1678      break;
1679
1680    case EXPR_CXX_CONSTRUCT:
1681      S = new (Context) CXXConstructExpr(Empty);
1682      break;
1683
1684    case EXPR_CXX_TEMPORARY_OBJECT:
1685      S = new (Context) CXXTemporaryObjectExpr(Empty);
1686      break;
1687
1688    case EXPR_CXX_STATIC_CAST:
1689      S = CXXStaticCastExpr::CreateEmpty(*Context,
1690                       /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
1691      break;
1692
1693    case EXPR_CXX_DYNAMIC_CAST:
1694      S = CXXDynamicCastExpr::CreateEmpty(*Context,
1695                       /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
1696      break;
1697
1698    case EXPR_CXX_REINTERPRET_CAST:
1699      S = CXXReinterpretCastExpr::CreateEmpty(*Context,
1700                       /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
1701      break;
1702
1703    case EXPR_CXX_CONST_CAST:
1704      S = CXXConstCastExpr::CreateEmpty(*Context);
1705      break;
1706
1707    case EXPR_CXX_FUNCTIONAL_CAST:
1708      S = CXXFunctionalCastExpr::CreateEmpty(*Context,
1709                       /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
1710      break;
1711
1712    case EXPR_CXX_BOOL_LITERAL:
1713      S = new (Context) CXXBoolLiteralExpr(Empty);
1714      break;
1715
1716    case EXPR_CXX_NULL_PTR_LITERAL:
1717      S = new (Context) CXXNullPtrLiteralExpr(Empty);
1718      break;
1719    case EXPR_CXX_TYPEID_EXPR:
1720      S = new (Context) CXXTypeidExpr(Empty, true);
1721      break;
1722    case EXPR_CXX_TYPEID_TYPE:
1723      S = new (Context) CXXTypeidExpr(Empty, false);
1724      break;
1725    case EXPR_CXX_UUIDOF_EXPR:
1726      S = new (Context) CXXUuidofExpr(Empty, true);
1727      break;
1728    case EXPR_CXX_UUIDOF_TYPE:
1729      S = new (Context) CXXUuidofExpr(Empty, false);
1730      break;
1731    case EXPR_CXX_THIS:
1732      S = new (Context) CXXThisExpr(Empty);
1733      break;
1734    case EXPR_CXX_THROW:
1735      S = new (Context) CXXThrowExpr(Empty);
1736      break;
1737    case EXPR_CXX_DEFAULT_ARG: {
1738      bool HasOtherExprStored = Record[ASTStmtReader::NumExprFields];
1739      if (HasOtherExprStored) {
1740        Expr *SubExpr = ReadSubExpr();
1741        S = CXXDefaultArgExpr::Create(*Context, SourceLocation(), 0, SubExpr);
1742      } else
1743        S = new (Context) CXXDefaultArgExpr(Empty);
1744      break;
1745    }
1746    case EXPR_CXX_BIND_TEMPORARY:
1747      S = new (Context) CXXBindTemporaryExpr(Empty);
1748      break;
1749
1750    case EXPR_CXX_SCALAR_VALUE_INIT:
1751      S = new (Context) CXXScalarValueInitExpr(Empty);
1752      break;
1753    case EXPR_CXX_NEW:
1754      S = new (Context) CXXNewExpr(Empty);
1755      break;
1756    case EXPR_CXX_DELETE:
1757      S = new (Context) CXXDeleteExpr(Empty);
1758      break;
1759    case EXPR_CXX_PSEUDO_DESTRUCTOR:
1760      S = new (Context) CXXPseudoDestructorExpr(Empty);
1761      break;
1762
1763    case EXPR_CXX_EXPR_WITH_TEMPORARIES:
1764      S = new (Context) CXXExprWithTemporaries(Empty);
1765      break;
1766
1767    case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
1768      S = CXXDependentScopeMemberExpr::CreateEmpty(*Context,
1769                      /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]);
1770      break;
1771
1772    case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
1773      S = DependentScopeDeclRefExpr::CreateEmpty(*Context,
1774                      /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]);
1775      break;
1776
1777    case EXPR_CXX_UNRESOLVED_CONSTRUCT:
1778      S = CXXUnresolvedConstructExpr::CreateEmpty(*Context,
1779                              /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
1780      break;
1781
1782    case EXPR_CXX_UNRESOLVED_MEMBER:
1783      S = UnresolvedMemberExpr::CreateEmpty(*Context,
1784                      /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]);
1785      break;
1786
1787    case EXPR_CXX_UNRESOLVED_LOOKUP:
1788      S = UnresolvedLookupExpr::CreateEmpty(*Context,
1789                      /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]);
1790      break;
1791
1792    case EXPR_CXX_UNARY_TYPE_TRAIT:
1793      S = new (Context) UnaryTypeTraitExpr(Empty);
1794      break;
1795
1796    case EXPR_CXX_NOEXCEPT:
1797      S = new (Context) CXXNoexceptExpr(Empty);
1798      break;
1799    }
1800
1801    // We hit a STMT_STOP, so we're done with this expression.
1802    if (Finished)
1803      break;
1804
1805    ++NumStatementsRead;
1806
1807    if (S)
1808      Reader.Visit(S);
1809
1810    assert(Idx == Record.size() && "Invalid deserialization of statement");
1811    StmtStack.push_back(S);
1812  }
1813
1814#ifndef NDEBUG
1815  assert(StmtStack.size() > PrevNumStmts && "Read too many sub stmts!");
1816  assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
1817#endif
1818
1819  return StmtStack.pop_back_val();
1820}
1821