DeclPrinter.cpp revision 193326 
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 VisitOriginalParmVarDecl(OriginalParmVarDecl *D);
55    void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
56    void VisitOverloadedFunctionDecl(OverloadedFunctionDecl *D);
57    void VisitNamespaceDecl(NamespaceDecl *D);
58    void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
59    void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
60    void VisitCXXRecordDecl(CXXRecordDecl *D);
61    void VisitLinkageSpecDecl(LinkageSpecDecl *D);
62    void VisitTemplateDecl(TemplateDecl *D);
63    void VisitObjCMethodDecl(ObjCMethodDecl *D);
64    void VisitObjCClassDecl(ObjCClassDecl *D);
65    void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
66    void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
67    void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
68    void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
69    void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
70    void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
71    void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
72    void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
73    void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
74  };
75}
76
77void Decl::print(llvm::raw_ostream &Out, ASTContext &Context,
78                 unsigned Indentation) {
79  print(Out, Context, Context.PrintingPolicy, Indentation);
80}
81
82void Decl::print(llvm::raw_ostream &Out, ASTContext &Context,
83                 const PrintingPolicy &Policy, unsigned Indentation) {
84  DeclPrinter Printer(Out, Context, Policy, Indentation);
85  Printer.Visit(this);
86}
87
88static QualType GetBaseType(QualType T) {
89  // FIXME: This should be on the Type class!
90  QualType BaseType = T;
91  while (!BaseType->isSpecifierType()) {
92    if (isa<TypedefType>(BaseType))
93      break;
94    else if (const PointerType* PTy = BaseType->getAsPointerType())
95      BaseType = PTy->getPointeeType();
96    else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType))
97      BaseType = ATy->getElementType();
98    else if (const FunctionType* FTy = BaseType->getAsFunctionType())
99      BaseType = FTy->getResultType();
100    else
101      assert(0 && "Unknown declarator!");
102  }
103  return BaseType;
104}
105
106static QualType getDeclType(Decl* D) {
107  if (TypedefDecl* TDD = dyn_cast<TypedefDecl>(D))
108    return TDD->getUnderlyingType();
109  if (ValueDecl* VD = dyn_cast<ValueDecl>(D))
110    return VD->getType();
111  return QualType();
112}
113
114void Decl::printGroup(Decl** Begin, unsigned NumDecls,
115                      llvm::raw_ostream &Out, ASTContext &Context,
116                      const PrintingPolicy &Policy,
117                      unsigned Indentation) {
118  if (NumDecls == 1) {
119    (*Begin)->print(Out, Context, Policy, Indentation);
120    return;
121  }
122
123  Decl** End = Begin + NumDecls;
124  TagDecl* TD = dyn_cast<TagDecl>(*Begin);
125  if (TD)
126    ++Begin;
127
128  PrintingPolicy SubPolicy(Policy);
129  if (TD && TD->isDefinition()) {
130    TD->print(Out, Context, Policy, Indentation);
131    Out << " ";
132    SubPolicy.SuppressTag = true;
133  }
134
135  bool isFirst = true;
136  for ( ; Begin != End; ++Begin) {
137    if (isFirst) {
138      SubPolicy.SuppressSpecifiers = false;
139      isFirst = false;
140    } else {
141      if (!isFirst) Out << ", ";
142      SubPolicy.SuppressSpecifiers = true;
143    }
144
145    (*Begin)->print(Out, Context, SubPolicy, Indentation);
146  }
147}
148
149void Decl::dump(ASTContext &Context) {
150  print(llvm::errs(), Context);
151}
152
153llvm::raw_ostream& DeclPrinter::Indent() {
154  for (unsigned i = 0; i < Indentation; ++i)
155    Out << "  ";
156  return Out;
157}
158
159void DeclPrinter::ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls) {
160  this->Indent();
161  Decl::printGroup(Decls.data(), Decls.size(), Out, Context,
162                   Policy, Indentation);
163  Out << ";\n";
164  Decls.clear();
165
166}
167
168//----------------------------------------------------------------------------
169// Common C declarations
170//----------------------------------------------------------------------------
171
172void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) {
173  if (Indent)
174    Indentation += Policy.Indentation;
175
176  llvm::SmallVector<Decl*, 2> Decls;
177  for (DeclContext::decl_iterator D = DC->decls_begin(Context),
178         DEnd = DC->decls_end(Context);
179       D != DEnd; ++D) {
180    if (!Policy.Dump) {
181      // Skip over implicit declarations in pretty-printing mode.
182      if (D->isImplicit()) continue;
183      // FIXME: Ugly hack so we don't pretty-print the builtin declaration
184      // of __builtin_va_list.  There should be some other way to check that.
185      if (isa<NamedDecl>(*D) && cast<NamedDecl>(*D)->getNameAsString() ==
186          "__builtin_va_list")
187        continue;
188    }
189
190    // The next bits of code handles stuff like "struct {int x;} a,b"; we're
191    // forced to merge the declarations because there's no other way to
192    // refer to the struct in question.  This limited merging is safe without
193    // a bunch of other checks because it only merges declarations directly
194    // referring to the tag, not typedefs.
195    //
196    // Check whether the current declaration should be grouped with a previous
197    // unnamed struct.
198    QualType CurDeclType = getDeclType(*D);
199    if (!Decls.empty() && !CurDeclType.isNull()) {
200      QualType BaseType = GetBaseType(CurDeclType);
201      if (!BaseType.isNull() && isa<TagType>(BaseType) &&
202          cast<TagType>(BaseType)->getDecl() == Decls[0]) {
203        Decls.push_back(*D);
204        continue;
205      }
206    }
207
208    // If we have a merged group waiting to be handled, handle it now.
209    if (!Decls.empty())
210      ProcessDeclGroup(Decls);
211
212    // If the current declaration is an unnamed tag type, save it
213    // so we can merge it with the subsequent declaration(s) using it.
214    if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) {
215      Decls.push_back(*D);
216      continue;
217    }
218    this->Indent();
219    Visit(*D);
220
221    // FIXME: Need to be able to tell the DeclPrinter when
222    const char *Terminator = 0;
223    if (isa<FunctionDecl>(*D) &&
224        cast<FunctionDecl>(*D)->isThisDeclarationADefinition())
225      Terminator = 0;
226    else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody())
227      Terminator = 0;
228    else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) ||
229             isa<ObjCImplementationDecl>(*D) ||
230             isa<ObjCInterfaceDecl>(*D) ||
231             isa<ObjCProtocolDecl>(*D) ||
232             isa<ObjCCategoryImplDecl>(*D) ||
233             isa<ObjCCategoryDecl>(*D))
234      Terminator = 0;
235    else if (isa<EnumConstantDecl>(*D)) {
236      DeclContext::decl_iterator Next = D;
237      ++Next;
238      if (Next != DEnd)
239        Terminator = ",";
240    } else
241      Terminator = ";";
242
243    if (Terminator)
244      Out << Terminator;
245    Out << "\n";
246  }
247
248  if (!Decls.empty())
249    ProcessDeclGroup(Decls);
250
251  if (Indent)
252    Indentation -= Policy.Indentation;
253}
254
255void DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
256  VisitDeclContext(D, false);
257}
258
259void DeclPrinter::VisitTypedefDecl(TypedefDecl *D) {
260  std::string S = D->getNameAsString();
261  D->getUnderlyingType().getAsStringInternal(S, Policy);
262  if (!Policy.SuppressSpecifiers)
263    Out << "typedef ";
264  Out << S;
265}
266
267void DeclPrinter::VisitEnumDecl(EnumDecl *D) {
268  Out << "enum " << D->getNameAsString() << " {\n";
269  VisitDeclContext(D);
270  Indent() << "}";
271}
272
273void DeclPrinter::VisitRecordDecl(RecordDecl *D) {
274  Out << D->getKindName();
275  if (D->getIdentifier()) {
276    Out << " ";
277    Out << D->getNameAsString();
278  }
279
280  if (D->isDefinition()) {
281    Out << " {\n";
282    VisitDeclContext(D);
283    Indent() << "}";
284  }
285}
286
287void DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) {
288  Out << D->getNameAsString();
289  if (Expr *Init = D->getInitExpr()) {
290    Out << " = ";
291    Init->printPretty(Out, Context, 0, Policy, Indentation);
292  }
293}
294
295void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) {
296  if (!Policy.SuppressSpecifiers) {
297    switch (D->getStorageClass()) {
298    case FunctionDecl::None: break;
299    case FunctionDecl::Extern: Out << "extern "; break;
300    case FunctionDecl::Static: Out << "static "; break;
301    case FunctionDecl::PrivateExtern: Out << "__private_extern__ "; break;
302    }
303
304    if (D->isInline())           Out << "inline ";
305    if (D->isVirtualAsWritten()) Out << "virtual ";
306  }
307
308  PrintingPolicy SubPolicy(Policy);
309  SubPolicy.SuppressSpecifiers = false;
310  std::string Proto = D->getNameAsString();
311  if (isa<FunctionType>(D->getType().getTypePtr())) {
312    const FunctionType *AFT = D->getType()->getAsFunctionType();
313
314    const FunctionProtoType *FT = 0;
315    if (D->hasWrittenPrototype())
316      FT = dyn_cast<FunctionProtoType>(AFT);
317
318    Proto += "(";
319    if (FT) {
320      llvm::raw_string_ostream POut(Proto);
321      DeclPrinter ParamPrinter(POut, Context, SubPolicy, Indentation);
322      for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
323        if (i) POut << ", ";
324        ParamPrinter.VisitParmVarDecl(D->getParamDecl(i));
325      }
326
327      if (FT->isVariadic()) {
328        if (D->getNumParams()) POut << ", ";
329        POut << "...";
330      }
331    } else if (D->isThisDeclarationADefinition() && !D->hasPrototype()) {
332      for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
333        if (i)
334          Proto += ", ";
335        Proto += D->getParamDecl(i)->getNameAsString();
336      }
337    }
338
339    Proto += ")";
340    AFT->getResultType().getAsStringInternal(Proto, Policy);
341  } else {
342    D->getType().getAsStringInternal(Proto, Policy);
343  }
344
345  Out << Proto;
346
347  if (D->isPure())
348    Out << " = 0";
349  else if (D->isDeleted())
350    Out << " = delete";
351  else if (D->isThisDeclarationADefinition()) {
352    if (!D->hasPrototype() && D->getNumParams()) {
353      // This is a K&R function definition, so we need to print the
354      // parameters.
355      Out << '\n';
356      DeclPrinter ParamPrinter(Out, Context, SubPolicy, Indentation);
357      Indentation += Policy.Indentation;
358      for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
359        Indent();
360        ParamPrinter.VisitParmVarDecl(D->getParamDecl(i));
361        Out << ";\n";
362      }
363      Indentation -= Policy.Indentation;
364    } else
365      Out << ' ';
366
367    D->getBody(Context)->printPretty(Out, Context, 0, SubPolicy, Indentation);
368    Out << '\n';
369  }
370}
371
372void DeclPrinter::VisitFieldDecl(FieldDecl *D) {
373  if (!Policy.SuppressSpecifiers && D->isMutable())
374    Out << "mutable ";
375
376  std::string Name = D->getNameAsString();
377  D->getType().getAsStringInternal(Name, Policy);
378  Out << Name;
379
380  if (D->isBitField()) {
381    Out << " : ";
382    D->getBitWidth()->printPretty(Out, Context, 0, Policy, Indentation);
383  }
384}
385
386void DeclPrinter::VisitVarDecl(VarDecl *D) {
387  if (!Policy.SuppressSpecifiers && D->getStorageClass() != VarDecl::None)
388    Out << VarDecl::getStorageClassSpecifierString(D->getStorageClass()) << " ";
389
390  if (!Policy.SuppressSpecifiers && D->isThreadSpecified())
391    Out << "__thread ";
392
393  std::string Name = D->getNameAsString();
394  QualType T = D->getType();
395  if (OriginalParmVarDecl *Parm = dyn_cast<OriginalParmVarDecl>(D))
396    T = Parm->getOriginalType();
397  T.getAsStringInternal(Name, Policy);
398  Out << Name;
399  if (D->getInit()) {
400    if (D->hasCXXDirectInitializer())
401      Out << "(";
402    else
403      Out << " = ";
404    D->getInit()->printPretty(Out, Context, 0, Policy, Indentation);
405    if (D->hasCXXDirectInitializer())
406      Out << ")";
407  }
408}
409
410void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) {
411  VisitVarDecl(D);
412}
413
414void DeclPrinter::VisitOriginalParmVarDecl(OriginalParmVarDecl *D) {
415  VisitVarDecl(D);
416}
417
418void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
419  Out << "__asm (";
420  D->getAsmString()->printPretty(Out, Context, 0, Policy, Indentation);
421  Out << ")";
422}
423
424//----------------------------------------------------------------------------
425// C++ declarations
426//----------------------------------------------------------------------------
427void DeclPrinter::VisitOverloadedFunctionDecl(OverloadedFunctionDecl *D) {
428  assert(false &&
429         "OverloadedFunctionDecls aren't really decls and are never printed");
430}
431
432void DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) {
433  Out << "namespace " << D->getNameAsString() << " {\n";
434  VisitDeclContext(D);
435  Indent() << "}";
436}
437
438void DeclPrinter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
439  Out << "using namespace ";
440  if (D->getQualifier())
441    D->getQualifier()->print(Out, Policy);
442  Out << D->getNominatedNamespace()->getNameAsString();
443}
444
445void DeclPrinter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
446  Out << "namespace " << D->getNameAsString() << " = ";
447  if (D->getQualifier())
448    D->getQualifier()->print(Out, Policy);
449  Out << D->getAliasedNamespace()->getNameAsString();
450}
451
452void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) {
453  Out << D->getKindName();
454  if (D->getIdentifier()) {
455    Out << " ";
456    Out << D->getNameAsString();
457  }
458
459  if (D->isDefinition()) {
460    // Print the base classes
461    if (D->getNumBases()) {
462      Out << " : ";
463      for(CXXRecordDecl::base_class_iterator Base = D->bases_begin(),
464                                          BaseEnd = D->bases_end();
465          Base != BaseEnd; ++Base) {
466        if (Base != D->bases_begin())
467          Out << ", ";
468
469        if (Base->isVirtual())
470          Out << "virtual ";
471
472        switch(Base->getAccessSpecifierAsWritten()) {
473        case AS_none:      break;
474        case AS_public:    Out << "public "; break;
475        case AS_protected: Out << "protected "; break;
476        case AS_private:   Out << " private "; break;
477        }
478
479        Out << Base->getType().getAsString(Policy);
480      }
481    }
482
483    // Print the class definition
484    // FIXME: Doesn't print access specifiers, e.g., "public:"
485    Out << " {\n";
486    VisitDeclContext(D);
487    Indent() << "}";
488  }
489}
490
491void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
492  const char *l;
493  if (D->getLanguage() == LinkageSpecDecl::lang_c)
494    l = "C";
495  else {
496    assert(D->getLanguage() == LinkageSpecDecl::lang_cxx &&
497           "unknown language in linkage specification");
498    l = "C++";
499  }
500
501  Out << "extern \"" << l << "\" ";
502  if (D->hasBraces()) {
503    Out << "{\n";
504    VisitDeclContext(D);
505    Indent() << "}";
506  } else
507    Visit(*D->decls_begin(Context));
508}
509
510void DeclPrinter::VisitTemplateDecl(TemplateDecl *D) {
511  // TODO: Write template parameters.
512  Out << "template <...> ";
513  Visit(D->getTemplatedDecl());
514}
515
516//----------------------------------------------------------------------------
517// Objective-C declarations
518//----------------------------------------------------------------------------
519
520void DeclPrinter::VisitObjCClassDecl(ObjCClassDecl *D) {
521  Out << "@class ";
522  for (ObjCClassDecl::iterator I = D->begin(), E = D->end();
523       I != E; ++I) {
524    if (I != D->begin()) Out << ", ";
525    Out << (*I)->getNameAsString();
526  }
527}
528
529void DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) {
530  if (OMD->isInstanceMethod())
531    Out << "- ";
532  else
533    Out << "+ ";
534  if (!OMD->getResultType().isNull())
535    Out << '(' << OMD->getResultType().getAsString(Policy) << ")";
536
537  std::string name = OMD->getSelector().getAsString();
538  std::string::size_type pos, lastPos = 0;
539  for (ObjCMethodDecl::param_iterator PI = OMD->param_begin(),
540       E = OMD->param_end(); PI != E; ++PI) {
541    // FIXME: selector is missing here!
542    pos = name.find_first_of(":", lastPos);
543    Out << " " << name.substr(lastPos, pos - lastPos);
544    Out << ":(" << (*PI)->getType().getAsString(Policy) << ")"
545        << (*PI)->getNameAsString();
546    lastPos = pos + 1;
547  }
548
549  if (OMD->param_begin() == OMD->param_end())
550    Out << " " << name;
551
552  if (OMD->isVariadic())
553      Out << ", ...";
554
555  if (OMD->getBody()) {
556    Out << ' ';
557    OMD->getBody()->printPretty(Out, Context, 0, Policy);
558    Out << '\n';
559  }
560}
561
562void DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) {
563  std::string I = OID->getNameAsString();
564  ObjCInterfaceDecl *SID = OID->getSuperClass();
565
566  if (SID)
567    Out << "@implementation " << I << " : " << SID->getNameAsString();
568  else
569    Out << "@implementation " << I;
570  Out << "\n";
571  VisitDeclContext(OID, false);
572  Out << "@end";
573}
574
575void DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) {
576  std::string I = OID->getNameAsString();
577  ObjCInterfaceDecl *SID = OID->getSuperClass();
578
579  if (SID)
580    Out << "@interface " << I << " : " << SID->getNameAsString();
581  else
582    Out << "@interface " << I;
583
584  // Protocols?
585  const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols();
586  if (!Protocols.empty()) {
587    for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
588         E = Protocols.end(); I != E; ++I)
589      Out << (I == Protocols.begin() ? '<' : ',') << (*I)->getNameAsString();
590  }
591
592  if (!Protocols.empty())
593    Out << "> ";
594
595  if (OID->ivar_size() > 0) {
596    Out << "{\n";
597    Indentation += Policy.Indentation;
598    for (ObjCInterfaceDecl::ivar_iterator I = OID->ivar_begin(),
599         E = OID->ivar_end(); I != E; ++I) {
600      Indent() << (*I)->getType().getAsString(Policy)
601          << ' '  << (*I)->getNameAsString() << ";\n";
602    }
603    Indentation -= Policy.Indentation;
604    Out << "}\n";
605  }
606
607  VisitDeclContext(OID, false);
608  Out << "@end";
609  // FIXME: implement the rest...
610}
611
612void DeclPrinter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
613  Out << "@protocol ";
614  for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(),
615         E = D->protocol_end();
616       I != E; ++I) {
617    if (I != D->protocol_begin()) Out << ", ";
618    Out << (*I)->getNameAsString();
619  }
620}
621
622void DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) {
623  Out << "@protocol " << PID->getNameAsString() << '\n';
624  VisitDeclContext(PID, false);
625  Out << "@end";
626}
627
628void DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) {
629  Out << "@implementation "
630      << PID->getClassInterface()->getNameAsString()
631      << '(' << PID->getNameAsString() << ")\n";
632
633  VisitDeclContext(PID, false);
634  Out << "@end";
635  // FIXME: implement the rest...
636}
637
638void DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) {
639  Out << "@interface "
640      << PID->getClassInterface()->getNameAsString()
641      << '(' << PID->getNameAsString() << ")\n";
642  VisitDeclContext(PID, false);
643  Out << "@end";
644
645  // FIXME: implement the rest...
646}
647
648void DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) {
649  Out << "@compatibility_alias " << AID->getNameAsString()
650      << ' ' << AID->getClassInterface()->getNameAsString() << ";\n";
651}
652
653/// PrintObjCPropertyDecl - print a property declaration.
654///
655void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) {
656  if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required)
657    Out << "@required\n";
658  else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional)
659    Out << "@optional\n";
660
661  Out << "@property";
662  if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) {
663    bool first = true;
664    Out << " (";
665    if (PDecl->getPropertyAttributes() &
666        ObjCPropertyDecl::OBJC_PR_readonly) {
667      Out << (first ? ' ' : ',') << "readonly";
668      first = false;
669  }
670
671  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) {
672    Out << (first ? ' ' : ',') << "getter = "
673        << PDecl->getGetterName().getAsString();
674    first = false;
675  }
676  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) {
677    Out << (first ? ' ' : ',') << "setter = "
678        << PDecl->getSetterName().getAsString();
679    first = false;
680  }
681
682  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) {
683    Out << (first ? ' ' : ',') << "assign";
684    first = false;
685  }
686
687  if (PDecl->getPropertyAttributes() &
688      ObjCPropertyDecl::OBJC_PR_readwrite) {
689    Out << (first ? ' ' : ',') << "readwrite";
690    first = false;
691  }
692
693  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) {
694    Out << (first ? ' ' : ',') << "retain";
695    first = false;
696  }
697
698  if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) {
699    Out << (first ? ' ' : ',') << "copy";
700    first = false;
701  }
702
703  if (PDecl->getPropertyAttributes() &
704      ObjCPropertyDecl::OBJC_PR_nonatomic) {
705    Out << (first ? ' ' : ',') << "nonatomic";
706    first = false;
707  }
708  Out << " )";
709  }
710  Out << ' ' << PDecl->getType().getAsString(Policy)
711  << ' ' << PDecl->getNameAsString();
712}
713
714void DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) {
715  if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
716    Out << "@synthesize ";
717  else
718    Out << "@dynamic ";
719  Out << PID->getPropertyDecl()->getNameAsString();
720  if (PID->getPropertyIvarDecl())
721    Out << "=" << PID->getPropertyIvarDecl()->getNameAsString();
722}
723