DeclPrinter.cpp revision 48d14a222276fad5279e994d1a062f36ae6fcbce 
1//===--- DeclPrinter.cpp - Printing implementation for Decl ASTs ----------===//
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// This file implements the Decl::dump method, which pretty print the
11// AST back out to C/Objective-C/C++/Objective-C++ code.
12//
13//===----------------------------------------------------------------------===//
14#include "clang/AST/ASTContext.h"
15#include "clang/AST/DeclVisitor.h"
16#include "clang/AST/Decl.h"
17#include "clang/AST/DeclCXX.h"
18#include "clang/AST/DeclObjC.h"
19#include "clang/AST/Expr.h"
20#include "clang/AST/PrettyPrinter.h"
21#include "llvm/Support/Compiler.h"
22#include "llvm/Support/Streams.h"
23#include "llvm/Support/Format.h"
24#include "llvm/Support/raw_ostream.h"
25using namespace clang;
26
27namespace {
28  class VISIBILITY_HIDDEN DeclPrinter : public DeclVisitor<DeclPrinter> {
29    llvm::raw_ostream &Out;
30    ASTContext &Context;
31    PrintingPolicy Policy;
32    unsigned Indentation;
33
34    llvm::raw_ostream& Indent();
35    void ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls);
36
37  public:
38    DeclPrinter(llvm::raw_ostream &Out, ASTContext &Context,
39                const PrintingPolicy &Policy,
40                unsigned Indentation = 0)
41      : Out(Out), Context(Context), Policy(Policy), Indentation(Indentation) { }
42
43    void VisitDeclContext(DeclContext *DC, bool Indent = true);
44
45    void VisitTranslationUnitDecl(TranslationUnitDecl *D);
46    void VisitTypedefDecl(TypedefDecl *D);
47    void VisitEnumDecl(EnumDecl *D);
48    void VisitRecordDecl(RecordDecl *D);
49    void VisitEnumConstantDecl(EnumConstantDecl *D);
50    void VisitFunctionDecl(FunctionDecl *D);
51    void VisitFieldDecl(FieldDecl *D);
52    void VisitVarDecl(VarDecl *D);
53    void VisitParmVarDecl(ParmVarDecl *D);
54    void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
55    void VisitNamespaceDecl(NamespaceDecl *D);
56    void VisitLinkageSpecDecl(LinkageSpecDecl *D);
57    void VisitTemplateDecl(TemplateDecl *D);
58    void VisitObjCClassDecl(ObjCClassDecl *D);
59    void VisitObjCMethodDecl(ObjCMethodDecl *D);
60    void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
61    void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
62    void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
63    void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
64    void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
65    void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
66    void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
67    void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
68    void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
69  };
70}
71
72void Decl::print(llvm::raw_ostream &Out, ASTContext &Context,
73                 unsigned Indentation) {
74  print(Out, Context, Context.PrintingPolicy, Indentation);
75}
76
77void Decl::print(llvm::raw_ostream &Out, ASTContext &Context,
78                 const PrintingPolicy &Policy, unsigned Indentation) {
79  DeclPrinter Printer(Out, Context, Policy, Indentation);
80  Printer.Visit(this);
81}
82
83static QualType GetBaseType(QualType T) {
84  // FIXME: This should be on the Type class!
85  QualType BaseType = T;
86  while (!BaseType->isSpecifierType()) {
87    if (isa<TypedefType>(BaseType))
88      break;
89    else if (const PointerType* PTy = BaseType->getAsPointerType())
90      BaseType = PTy->getPointeeType();
91    else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType))
92      BaseType = ATy->getElementType();
93    else if (const FunctionType* FTy = BaseType->getAsFunctionType())
94      BaseType = FTy->getResultType();
95    else
96      assert(0 && "Unknown declarator!");
97  }
98  return BaseType;
99}
100
101static QualType getDeclType(Decl* D) {
102  if (TypedefDecl* TDD = dyn_cast<TypedefDecl>(D))
103    return TDD->getUnderlyingType();
104  if (ValueDecl* VD = dyn_cast<ValueDecl>(D))
105    return VD->getType();
106  return QualType();
107}
108
109void Decl::printGroup(Decl** Begin, unsigned NumDecls,
110                      llvm::raw_ostream &Out, ASTContext &Context,
111                      const PrintingPolicy &Policy,
112                      unsigned Indentation) {
113  if (NumDecls == 1) {
114    (*Begin)->print(Out, Context, Policy, Indentation);
115    return;
116  }
117
118  Decl** End = Begin + NumDecls;
119  TagDecl* TD = dyn_cast<TagDecl>(*Begin);
120  if (TD)
121    ++Begin;
122
123  PrintingPolicy SubPolicy(Policy);
124  if (TD && TD->isDefinition()) {
125    TD->print(Out, Context, Policy, Indentation);
126    Out << " ";
127    SubPolicy.SuppressTag = true;
128  }
129
130  bool isFirst = true;
131  for ( ; Begin != End; ++Begin) {
132    if (isFirst) {
133      SubPolicy.SuppressSpecifiers = false;
134      isFirst = false;
135    } else {
136      if (!isFirst) Out << ", ";
137      SubPolicy.SuppressSpecifiers = true;
138    }
139
140    (*Begin)->print(Out, Context, SubPolicy, Indentation);
141  }
142}
143
144void Decl::dump(ASTContext &Context) {
145  print(llvm::errs(), Context);
146}
147
148llvm::raw_ostream& DeclPrinter::Indent() {
149  for (unsigned i = 0; i < Indentation; ++i)
150    Out << "  ";
151  return Out;
152}
153
154void DeclPrinter::ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls) {
155  this->Indent();
156  Decl::printGroup(Decls.data(), Decls.size(), Out, Context,
157                   Policy, Indentation);
158  Out << ";\n";
159  Decls.clear();
160
161}
162
163//----------------------------------------------------------------------------
164// Common C declarations
165//----------------------------------------------------------------------------
166
167void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) {
168  if (Indent)
169    Indentation += Policy.Indentation;
170
171  llvm::SmallVector<Decl*, 2> Decls;
172  for (DeclContext::decl_iterator D = DC->decls_begin(Context),
173         DEnd = DC->decls_end(Context);
174       D != DEnd; ++D) {
175    if (!Policy.Dump) {
176      // Skip over implicit declarations in pretty-printing mode.
177      if (D->isImplicit()) continue;
178    }
179
180    // The next bits of code handles stuff like "struct {int x;} a,b"; we're
181    // forced to merge the declarations because there's no other way to
182    // refer to the struct in question.  This limited merging is safe without
183    // a bunch of other checks because it only merges declarations directly
184    // referring to the tag, not typedefs.
185    //
186    // Check whether the current declaration should be grouped with a previous
187    // unnamed struct.
188    QualType CurDeclType = getDeclType(*D);
189    if (!Decls.empty() && !CurDeclType.isNull()) {
190      QualType BaseType = GetBaseType(CurDeclType);
191      if (!BaseType.isNull() && isa<TagType>(BaseType) &&
192          cast<TagType>(BaseType)->getDecl() == Decls[0]) {
193        Decls.push_back(*D);
194        continue;
195      }
196    }
197
198    // If we have a merged group waiting to be handled, handle it now.
199    if (!Decls.empty())
200      ProcessDeclGroup(Decls);
201
202    // If the current declaration is an unnamed tag type, save it
203    // so we can merge it with the subsequent declaration(s) using it.
204    if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) {
205      Decls.push_back(*D);
206      continue;
207    }
208    this->Indent();
209    Visit(*D);
210
211    // FIXME: Need to be able to tell the DeclPrinter when
212    const char *Terminator = 0;
213    if (isa<FunctionDecl>(*D) &&
214        cast<FunctionDecl>(*D)->isThisDeclarationADefinition())
215      Terminator = 0;
216    else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody())
217      Terminator = 0;
218    else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) ||
219             isa<ObjCImplementationDecl>(*D) ||
220             isa<ObjCInterfaceDecl>(*D) ||
221             isa<ObjCProtocolDecl>(*D) ||
222             isa<ObjCCategoryImplDecl>(*D) ||
223             isa<ObjCCategoryDecl>(*D))
224      Terminator = 0;
225    else if (isa<EnumConstantDecl>(*D)) {
226      DeclContext::decl_iterator Next = D;
227      ++Next;
228      if (Next != DEnd)
229        Terminator = ",";
230    } else
231      Terminator = ";";
232
233    if (Terminator)
234      Out << Terminator;
235    Out << "\n";
236  }
237
238  if (!Decls.empty())
239    ProcessDeclGroup(Decls);
240
241  if (Indent)
242    Indentation -= Policy.Indentation;
243}
244
245void DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
246  VisitDeclContext(D, false);
247}
248
249void DeclPrinter::VisitTypedefDecl(TypedefDecl *D) {
250  std::string S = D->getNameAsString();
251  D->getUnderlyingType().getAsStringInternal(S, Policy);
252  if (!Policy.SuppressSpecifiers)
253    Out << "typedef ";
254  Out << S;
255}
256
257void DeclPrinter::VisitEnumDecl(EnumDecl *D) {
258  Out << "enum " << D->getNameAsString() << " {\n";
259  VisitDeclContext(D);
260  Indent() << "}";
261}
262
263void DeclPrinter::VisitRecordDecl(RecordDecl *D) {
264  // print a free standing tag decl (e.g. "struct x;").
265  Out << D->getKindName();
266  if (D->getIdentifier()) {
267    Out << " ";
268    Out << D->getNameAsString();
269  }
270
271  if (D->isDefinition()) {
272    Out << " {\n";
273    VisitDeclContext(D);
274    Indent() << "}";
275  }
276}
277
278void DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) {
279  Out << D->getNameAsString();
280  if (Expr *Init = D->getInitExpr()) {
281    Out << " = ";
282    Init->printPretty(Out, Context, 0, Policy, Indentation);
283  }
284}
285
286void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) {
287  if (!Policy.SuppressSpecifiers) {
288    switch (D->getStorageClass()) {
289    case FunctionDecl::None: break;
290    case FunctionDecl::Extern: Out << "extern "; break;
291    case FunctionDecl::Static: Out << "static "; break;
292    case FunctionDecl::PrivateExtern: Out << "__private_extern__ "; break;
293    }
294
295    if (D->isInline())           Out << "inline ";
296    if (D->isVirtualAsWritten()) Out << "virtual ";
297  }
298
299  std::string Proto = D->getNameAsString();
300  if (isa<FunctionType>(D->getType().getTypePtr())) {
301    const FunctionType *AFT = D->getType()->getAsFunctionType();
302
303    const FunctionProtoType *FT = 0;
304    if (D->hasWrittenPrototype())
305      FT = dyn_cast<FunctionProtoType>(AFT);
306
307    Proto += "(";
308    if (FT) {
309      llvm::raw_string_ostream POut(Proto);
310      DeclPrinter ParamPrinter(POut, Context, Policy, Indentation);
311      for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
312        if (i) POut << ", ";
313        ParamPrinter.VisitParmVarDecl(D->getParamDecl(i));
314      }
315
316      if (FT->isVariadic()) {
317        if (D->getNumParams()) POut << ", ";
318        POut << "...";
319      }
320    } else if (D->isThisDeclarationADefinition() && !D->hasPrototype()) {
321      for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
322        if (i)
323          Proto += ", ";
324        Proto += D->getParamDecl(i)->getNameAsString();
325      }
326    }
327
328    Proto += ")";
329    AFT->getResultType().getAsStringInternal(Proto, Policy);
330  } else {
331    D->getType().getAsStringInternal(Proto, Policy);
332  }
333
334  Out << Proto;
335
336  if (D->isPure())
337    Out << " = 0";
338  else if (D->isDeleted())
339    Out << " = delete";
340  else if (D->isThisDeclarationADefinition()) {
341    if (!D->hasPrototype() && D->getNumParams()) {
342      // This is a K&R function definition, so we need to print the
343      // parameters.
344      Out << '\n';
345      Indentation += Policy.Indentation;
346      for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
347        Indent();
348        VisitParmVarDecl(D->getParamDecl(i));
349        Out << ";\n";
350      }
351      Indentation -= Policy.Indentation;
352    } else
353      Out << ' ';
354
355    D->getBody(Context)->printPretty(Out, Context, 0, Policy, Indentation);
356    Out << '\n';
357  }
358}
359
360void DeclPrinter::VisitFieldDecl(FieldDecl *D) {
361  if (!Policy.SuppressSpecifiers && D->isMutable())
362    Out << "mutable ";
363
364  std::string Name = D->getNameAsString();
365  D->getType().getAsStringInternal(Name, Policy);
366  Out << Name;
367
368  if (D->isBitField()) {
369    Out << " : ";
370    D->getBitWidth()->printPretty(Out, Context, 0, Policy, Indentation);
371  }
372}
373
374void DeclPrinter::VisitVarDecl(VarDecl *D) {
375  if (!Policy.SuppressSpecifiers && D->getStorageClass() != VarDecl::None)
376    Out << VarDecl::getStorageClassSpecifierString(D->getStorageClass()) << " ";
377
378  if (!Policy.SuppressSpecifiers && D->isThreadSpecified())
379    Out << "__thread ";
380
381  std::string Name = D->getNameAsString();
382  QualType T = D->getType();
383  if (OriginalParmVarDecl *Parm = dyn_cast<OriginalParmVarDecl>(D))
384    T = Parm->getOriginalType();
385  T.getAsStringInternal(Name, Policy);
386  Out << Name;
387  if (D->getInit()) {
388    if (D->hasCXXDirectInitializer())
389      Out << "(";
390    else
391      Out << " = ";
392    D->getInit()->printPretty(Out, Context, 0, Policy, Indentation);
393    if (D->hasCXXDirectInitializer())
394      Out << ")";
395  }
396}
397
398void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) {
399  VisitVarDecl(D);
400}
401
402void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
403  Out << "__asm (";
404  D->getAsmString()->printPretty(Out, Context, 0, Policy, Indentation);
405  Out << ")";
406}
407
408//----------------------------------------------------------------------------
409// C++ declarations
410//----------------------------------------------------------------------------
411void DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) {
412  Out << "namespace " << D->getNameAsString() << " {\n";
413  VisitDeclContext(D);
414  Indent() << "}";
415}
416
417void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
418  const char *l;
419  if (D->getLanguage() == LinkageSpecDecl::lang_c)
420    l = "C";
421  else {
422    assert(D->getLanguage() == LinkageSpecDecl::lang_cxx &&
423           "unknown language in linkage specification");
424    l = "C++";
425  }
426
427  Out << "extern \"" << l << "\" ";
428  if (D->hasBraces()) {
429    Out << "{\n";
430    VisitDeclContext(D);
431    Indent() << "}";
432  } else
433    Visit(*D->decls_begin(Context));
434}
435
436void DeclPrinter::VisitTemplateDecl(TemplateDecl *D) {
437  // TODO: Write template parameters.
438  Out << "template <...> ";
439  Visit(D->getTemplatedDecl());
440}
441
442//----------------------------------------------------------------------------
443// Objective-C declarations
444//----------------------------------------------------------------------------
445
446void DeclPrinter::VisitObjCClassDecl(ObjCClassDecl *D) {
447  Out << "@class ";
448  for (ObjCClassDecl::iterator I = D->begin(), E = D->end();
449       I != E; ++I) {
450    if (I != D->begin()) Out << ", ";
451    Out << (*I)->getNameAsString();
452  }
453}
454
455void DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) {
456  if (OMD->isInstanceMethod())
457    Out << "- ";
458  else
459    Out << "+ ";
460  if (!OMD->getResultType().isNull())
461    Out << '(' << OMD->getResultType().getAsString() << ")";
462
463  std::string name = OMD->getSelector().getAsString();
464  std::string::size_type pos, lastPos = 0;
465  for (ObjCMethodDecl::param_iterator PI = OMD->param_begin(),
466       E = OMD->param_end(); PI != E; ++PI) {
467    // FIXME: selector is missing here!
468    pos = name.find_first_of(":", lastPos);
469    Out << " " << name.substr(lastPos, pos - lastPos);
470    Out << ":(" << (*PI)->getType().getAsString() << ")"
471        << (*PI)->getNameAsString();
472    lastPos = pos + 1;
473  }
474
475  if (OMD->param_begin() == OMD->param_end())
476    Out << " " << name;
477
478  if (OMD->isVariadic())
479      Out << ", ...";
480
481  if (OMD->getBody()) {
482    Out << ' ';
483    OMD->getBody()->printPretty(Out, Context, 0, Policy);
484    Out << '\n';
485  }
486}
487
488void DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) {
489  std::string I = OID->getNameAsString();
490  ObjCInterfaceDecl *SID = OID->getSuperClass();
491
492  if (SID)
493    Out << "@implementation " << I << " : " << SID->getNameAsString();
494  else
495    Out << "@implementation " << I;
496  Out << "\n";
497  VisitDeclContext(OID, false);
498  Out << "@end";
499}
500
501void DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) {
502  std::string I = OID->getNameAsString();
503  ObjCInterfaceDecl *SID = OID->getSuperClass();
504
505  if (SID)
506    Out << "@interface " << I << " : " << SID->getNameAsString();
507  else
508    Out << "@interface " << I;
509
510  // Protocols?
511  const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols();
512  if (!Protocols.empty()) {
513    for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
514         E = Protocols.end(); I != E; ++I)
515      Out << (I == Protocols.begin() ? '<' : ',') << (*I)->getNameAsString();
516  }
517
518  if (!Protocols.empty())
519    Out << "> ";
520
521  if (OID->ivar_size() > 0) {
522    Out << "{\n";
523    Indentation += Policy.Indentation;
524    for (ObjCInterfaceDecl::ivar_iterator I = OID->ivar_begin(),
525         E = OID->ivar_end(); I != E; ++I) {
526      Indent() << (*I)->getType().getAsString(Policy)
527          << ' '  << (*I)->getNameAsString() << ";\n";
528    }
529    Indentation -= Policy.Indentation;
530    Out << "}\n";
531  }
532
533  VisitDeclContext(OID, false);
534  Out << "@end";
535  // FIXME: implement the rest...
536}
537
538void DeclPrinter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
539  Out << "@protocol ";
540  for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(),
541         E = D->protocol_end();
542       I != E; ++I) {
543    if (I != D->protocol_begin()) Out << ", ";
544    Out << (*I)->getNameAsString();
545  }
546}
547
548void DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) {
549  Out << "@protocol " << PID->getNameAsString() << '\n';
550  VisitDeclContext(PID, false);
551  Out << "@end";
552}
553
554void DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) {
555  Out << "@implementation "
556      << PID->getClassInterface()->getNameAsString()
557      << '(' << PID->getNameAsString() << ")\n";
558
559  VisitDeclContext(PID, false);
560  Out << "@end";
561  // FIXME: implement the rest...
562}
563
564void DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) {
565  Out << "@interface "
566      << PID->getClassInterface()->getNameAsString()
567      << '(' << PID->getNameAsString() << ")\n";
568  VisitDeclContext(PID, false);
569  Out << "@end";
570
571  // FIXME: implement the rest...
572}
573
574void DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) {
575  Out << "@compatibility_alias " << AID->getNameAsString()
576      << ' ' << AID->getClassInterface()->getNameAsString() << ";\n";
577}
578
579/// PrintObjCPropertyDecl - print a property declaration.
580///
581void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) {
582  if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required)
583    Out << "@required\n";
584  else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional)
585    Out << "@optional\n";
586
587  Out << "@property";
588  if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) {
589    bool first = true;
590    Out << " (";
591    if (PDecl->getPropertyAttributes() &
592        ObjCPropertyDecl::OBJC_PR_readonly) {
593      Out << (first ? ' ' : ',') << "readonly";
594      first = false;
595  }
596
597  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) {
598    Out << (first ? ' ' : ',') << "getter = "
599        << PDecl->getGetterName().getAsString();
600    first = false;
601  }
602  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) {
603    Out << (first ? ' ' : ',') << "setter = "
604        << PDecl->getSetterName().getAsString();
605    first = false;
606  }
607
608  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) {
609    Out << (first ? ' ' : ',') << "assign";
610    first = false;
611  }
612
613  if (PDecl->getPropertyAttributes() &
614      ObjCPropertyDecl::OBJC_PR_readwrite) {
615    Out << (first ? ' ' : ',') << "readwrite";
616    first = false;
617  }
618
619  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) {
620    Out << (first ? ' ' : ',') << "retain";
621    first = false;
622  }
623
624  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) {
625    Out << (first ? ' ' : ',') << "copy";
626    first = false;
627  }
628
629  if (PDecl->getPropertyAttributes() &
630      ObjCPropertyDecl::OBJC_PR_nonatomic) {
631    Out << (first ? ' ' : ',') << "nonatomic";
632    first = false;
633  }
634  Out << " )";
635  }
636  Out << ' ' << PDecl->getType().getAsString(Policy)
637  << ' ' << PDecl->getNameAsString();
638}
639
640void DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) {
641  if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
642    Out << "@synthesize ";
643  else
644    Out << "@dynamic ";
645  Out << PID->getPropertyDecl()->getNameAsString();
646  if (PID->getPropertyIvarDecl())
647    Out << "=" << PID->getPropertyIvarDecl()->getNameAsString();
648}
649