DeclPrinter.cpp revision 195341
1193326Sed//===--- DeclPrinter.cpp - Printing implementation for Decl ASTs ----------===// 2193326Sed// 3193326Sed// The LLVM Compiler Infrastructure 4193326Sed// 5193326Sed// This file is distributed under the University of Illinois Open Source 6193326Sed// License. See LICENSE.TXT for details. 7193326Sed// 8193326Sed//===----------------------------------------------------------------------===// 9193326Sed// 10193326Sed// This file implements the Decl::dump method, which pretty print the 11193326Sed// AST back out to C/Objective-C/C++/Objective-C++ code. 12193326Sed// 13193326Sed//===----------------------------------------------------------------------===// 14193326Sed#include "clang/AST/ASTContext.h" 15193326Sed#include "clang/AST/DeclVisitor.h" 16193326Sed#include "clang/AST/Decl.h" 17193326Sed#include "clang/AST/DeclCXX.h" 18193326Sed#include "clang/AST/DeclObjC.h" 19193326Sed#include "clang/AST/Expr.h" 20193326Sed#include "clang/AST/PrettyPrinter.h" 21193326Sed#include "llvm/Support/Compiler.h" 22193326Sed#include "llvm/Support/Streams.h" 23193326Sed#include "llvm/Support/Format.h" 24193326Sed#include "llvm/Support/raw_ostream.h" 25193326Sedusing namespace clang; 26193326Sed 27193326Sednamespace { 28193326Sed class VISIBILITY_HIDDEN DeclPrinter : public DeclVisitor<DeclPrinter> { 29193326Sed llvm::raw_ostream &Out; 30193326Sed ASTContext &Context; 31193326Sed PrintingPolicy Policy; 32193326Sed unsigned Indentation; 33193326Sed 34193326Sed llvm::raw_ostream& Indent(); 35193326Sed void ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls); 36193326Sed 37193326Sed public: 38193326Sed DeclPrinter(llvm::raw_ostream &Out, ASTContext &Context, 39193326Sed const PrintingPolicy &Policy, 40193326Sed unsigned Indentation = 0) 41193326Sed : Out(Out), Context(Context), Policy(Policy), Indentation(Indentation) { } 42193326Sed 43193326Sed void VisitDeclContext(DeclContext *DC, bool Indent = true); 44193326Sed 45193326Sed void VisitTranslationUnitDecl(TranslationUnitDecl *D); 46193326Sed void VisitTypedefDecl(TypedefDecl *D); 47193326Sed void VisitEnumDecl(EnumDecl *D); 48193326Sed void VisitRecordDecl(RecordDecl *D); 49193326Sed void VisitEnumConstantDecl(EnumConstantDecl *D); 50193326Sed void VisitFunctionDecl(FunctionDecl *D); 51193326Sed void VisitFieldDecl(FieldDecl *D); 52193326Sed void VisitVarDecl(VarDecl *D); 53193326Sed void VisitParmVarDecl(ParmVarDecl *D); 54193326Sed void VisitOriginalParmVarDecl(OriginalParmVarDecl *D); 55193326Sed void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 56193326Sed void VisitOverloadedFunctionDecl(OverloadedFunctionDecl *D); 57193326Sed void VisitNamespaceDecl(NamespaceDecl *D); 58193326Sed void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 59193326Sed void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 60193326Sed void VisitCXXRecordDecl(CXXRecordDecl *D); 61193326Sed void VisitLinkageSpecDecl(LinkageSpecDecl *D); 62193326Sed void VisitTemplateDecl(TemplateDecl *D); 63193326Sed void VisitObjCMethodDecl(ObjCMethodDecl *D); 64193326Sed void VisitObjCClassDecl(ObjCClassDecl *D); 65193326Sed void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 66193326Sed void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 67193326Sed void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D); 68193326Sed void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 69193326Sed void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 70193326Sed void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 71193326Sed void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 72193326Sed void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 73193326Sed void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 74193326Sed }; 75193326Sed} 76193326Sed 77195341Sedvoid Decl::print(llvm::raw_ostream &Out, unsigned Indentation) { 78195341Sed print(Out, getASTContext().PrintingPolicy, Indentation); 79193326Sed} 80193326Sed 81195341Sedvoid Decl::print(llvm::raw_ostream &Out, const PrintingPolicy &Policy, 82195341Sed unsigned Indentation) { 83195341Sed DeclPrinter Printer(Out, getASTContext(), Policy, Indentation); 84193326Sed Printer.Visit(this); 85193326Sed} 86193326Sed 87193326Sedstatic QualType GetBaseType(QualType T) { 88193326Sed // FIXME: This should be on the Type class! 89193326Sed QualType BaseType = T; 90193326Sed while (!BaseType->isSpecifierType()) { 91193326Sed if (isa<TypedefType>(BaseType)) 92193326Sed break; 93193326Sed else if (const PointerType* PTy = BaseType->getAsPointerType()) 94193326Sed BaseType = PTy->getPointeeType(); 95193326Sed else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType)) 96193326Sed BaseType = ATy->getElementType(); 97193326Sed else if (const FunctionType* FTy = BaseType->getAsFunctionType()) 98193326Sed BaseType = FTy->getResultType(); 99195341Sed else if (const VectorType *VTy = BaseType->getAsVectorType()) 100195341Sed BaseType = VTy->getElementType(); 101193326Sed else 102193326Sed assert(0 && "Unknown declarator!"); 103193326Sed } 104193326Sed return BaseType; 105193326Sed} 106193326Sed 107193326Sedstatic QualType getDeclType(Decl* D) { 108193326Sed if (TypedefDecl* TDD = dyn_cast<TypedefDecl>(D)) 109193326Sed return TDD->getUnderlyingType(); 110193326Sed if (ValueDecl* VD = dyn_cast<ValueDecl>(D)) 111193326Sed return VD->getType(); 112193326Sed return QualType(); 113193326Sed} 114193326Sed 115193326Sedvoid Decl::printGroup(Decl** Begin, unsigned NumDecls, 116195341Sed llvm::raw_ostream &Out, const PrintingPolicy &Policy, 117193326Sed unsigned Indentation) { 118193326Sed if (NumDecls == 1) { 119195341Sed (*Begin)->print(Out, Policy, Indentation); 120193326Sed return; 121193326Sed } 122193326Sed 123193326Sed Decl** End = Begin + NumDecls; 124193326Sed TagDecl* TD = dyn_cast<TagDecl>(*Begin); 125193326Sed if (TD) 126193326Sed ++Begin; 127193326Sed 128193326Sed PrintingPolicy SubPolicy(Policy); 129193326Sed if (TD && TD->isDefinition()) { 130195341Sed TD->print(Out, Policy, Indentation); 131193326Sed Out << " "; 132193326Sed SubPolicy.SuppressTag = true; 133193326Sed } 134193326Sed 135193326Sed bool isFirst = true; 136193326Sed for ( ; Begin != End; ++Begin) { 137193326Sed if (isFirst) { 138193326Sed SubPolicy.SuppressSpecifiers = false; 139193326Sed isFirst = false; 140193326Sed } else { 141193326Sed if (!isFirst) Out << ", "; 142193326Sed SubPolicy.SuppressSpecifiers = true; 143193326Sed } 144193326Sed 145195341Sed (*Begin)->print(Out, SubPolicy, Indentation); 146193326Sed } 147193326Sed} 148193326Sed 149195341Sedvoid Decl::dump() { 150195341Sed print(llvm::errs()); 151193326Sed} 152193326Sed 153193326Sedllvm::raw_ostream& DeclPrinter::Indent() { 154193326Sed for (unsigned i = 0; i < Indentation; ++i) 155193326Sed Out << " "; 156193326Sed return Out; 157193326Sed} 158193326Sed 159193326Sedvoid DeclPrinter::ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls) { 160193326Sed this->Indent(); 161195341Sed Decl::printGroup(Decls.data(), Decls.size(), Out, Policy, Indentation); 162193326Sed Out << ";\n"; 163193326Sed Decls.clear(); 164193326Sed 165193326Sed} 166193326Sed 167193326Sed//---------------------------------------------------------------------------- 168193326Sed// Common C declarations 169193326Sed//---------------------------------------------------------------------------- 170193326Sed 171193326Sedvoid DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) { 172193326Sed if (Indent) 173193326Sed Indentation += Policy.Indentation; 174193326Sed 175193326Sed llvm::SmallVector<Decl*, 2> Decls; 176195341Sed for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end(); 177193326Sed D != DEnd; ++D) { 178193326Sed if (!Policy.Dump) { 179193326Sed // Skip over implicit declarations in pretty-printing mode. 180193326Sed if (D->isImplicit()) continue; 181193326Sed // FIXME: Ugly hack so we don't pretty-print the builtin declaration 182193326Sed // of __builtin_va_list. There should be some other way to check that. 183193326Sed if (isa<NamedDecl>(*D) && cast<NamedDecl>(*D)->getNameAsString() == 184193326Sed "__builtin_va_list") 185193326Sed continue; 186193326Sed } 187193326Sed 188193326Sed // The next bits of code handles stuff like "struct {int x;} a,b"; we're 189193326Sed // forced to merge the declarations because there's no other way to 190193326Sed // refer to the struct in question. This limited merging is safe without 191193326Sed // a bunch of other checks because it only merges declarations directly 192193326Sed // referring to the tag, not typedefs. 193193326Sed // 194193326Sed // Check whether the current declaration should be grouped with a previous 195193326Sed // unnamed struct. 196193326Sed QualType CurDeclType = getDeclType(*D); 197193326Sed if (!Decls.empty() && !CurDeclType.isNull()) { 198193326Sed QualType BaseType = GetBaseType(CurDeclType); 199193326Sed if (!BaseType.isNull() && isa<TagType>(BaseType) && 200193326Sed cast<TagType>(BaseType)->getDecl() == Decls[0]) { 201193326Sed Decls.push_back(*D); 202193326Sed continue; 203193326Sed } 204193326Sed } 205193326Sed 206193326Sed // If we have a merged group waiting to be handled, handle it now. 207193326Sed if (!Decls.empty()) 208193326Sed ProcessDeclGroup(Decls); 209193326Sed 210193326Sed // If the current declaration is an unnamed tag type, save it 211193326Sed // so we can merge it with the subsequent declaration(s) using it. 212193326Sed if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) { 213193326Sed Decls.push_back(*D); 214193326Sed continue; 215193326Sed } 216193326Sed this->Indent(); 217193326Sed Visit(*D); 218193326Sed 219193326Sed // FIXME: Need to be able to tell the DeclPrinter when 220193326Sed const char *Terminator = 0; 221193326Sed if (isa<FunctionDecl>(*D) && 222193326Sed cast<FunctionDecl>(*D)->isThisDeclarationADefinition()) 223193326Sed Terminator = 0; 224193326Sed else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody()) 225193326Sed Terminator = 0; 226193326Sed else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) || 227193326Sed isa<ObjCImplementationDecl>(*D) || 228193326Sed isa<ObjCInterfaceDecl>(*D) || 229193326Sed isa<ObjCProtocolDecl>(*D) || 230193326Sed isa<ObjCCategoryImplDecl>(*D) || 231193326Sed isa<ObjCCategoryDecl>(*D)) 232193326Sed Terminator = 0; 233193326Sed else if (isa<EnumConstantDecl>(*D)) { 234193326Sed DeclContext::decl_iterator Next = D; 235193326Sed ++Next; 236193326Sed if (Next != DEnd) 237193326Sed Terminator = ","; 238193326Sed } else 239193326Sed Terminator = ";"; 240193326Sed 241193326Sed if (Terminator) 242193326Sed Out << Terminator; 243193326Sed Out << "\n"; 244193326Sed } 245193326Sed 246193326Sed if (!Decls.empty()) 247193326Sed ProcessDeclGroup(Decls); 248193326Sed 249193326Sed if (Indent) 250193326Sed Indentation -= Policy.Indentation; 251193326Sed} 252193326Sed 253193326Sedvoid DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 254193326Sed VisitDeclContext(D, false); 255193326Sed} 256193326Sed 257193326Sedvoid DeclPrinter::VisitTypedefDecl(TypedefDecl *D) { 258193326Sed std::string S = D->getNameAsString(); 259193326Sed D->getUnderlyingType().getAsStringInternal(S, Policy); 260193326Sed if (!Policy.SuppressSpecifiers) 261193326Sed Out << "typedef "; 262193326Sed Out << S; 263193326Sed} 264193326Sed 265193326Sedvoid DeclPrinter::VisitEnumDecl(EnumDecl *D) { 266193326Sed Out << "enum " << D->getNameAsString() << " {\n"; 267193326Sed VisitDeclContext(D); 268193326Sed Indent() << "}"; 269193326Sed} 270193326Sed 271193326Sedvoid DeclPrinter::VisitRecordDecl(RecordDecl *D) { 272193326Sed Out << D->getKindName(); 273193326Sed if (D->getIdentifier()) { 274193326Sed Out << " "; 275193326Sed Out << D->getNameAsString(); 276193326Sed } 277193326Sed 278193326Sed if (D->isDefinition()) { 279193326Sed Out << " {\n"; 280193326Sed VisitDeclContext(D); 281193326Sed Indent() << "}"; 282193326Sed } 283193326Sed} 284193326Sed 285193326Sedvoid DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) { 286193326Sed Out << D->getNameAsString(); 287193326Sed if (Expr *Init = D->getInitExpr()) { 288193326Sed Out << " = "; 289193326Sed Init->printPretty(Out, Context, 0, Policy, Indentation); 290193326Sed } 291193326Sed} 292193326Sed 293193326Sedvoid DeclPrinter::VisitFunctionDecl(FunctionDecl *D) { 294193326Sed if (!Policy.SuppressSpecifiers) { 295193326Sed switch (D->getStorageClass()) { 296193326Sed case FunctionDecl::None: break; 297193326Sed case FunctionDecl::Extern: Out << "extern "; break; 298193326Sed case FunctionDecl::Static: Out << "static "; break; 299193326Sed case FunctionDecl::PrivateExtern: Out << "__private_extern__ "; break; 300193326Sed } 301193326Sed 302193326Sed if (D->isInline()) Out << "inline "; 303193326Sed if (D->isVirtualAsWritten()) Out << "virtual "; 304193326Sed } 305193326Sed 306193326Sed PrintingPolicy SubPolicy(Policy); 307193326Sed SubPolicy.SuppressSpecifiers = false; 308193326Sed std::string Proto = D->getNameAsString(); 309193326Sed if (isa<FunctionType>(D->getType().getTypePtr())) { 310193326Sed const FunctionType *AFT = D->getType()->getAsFunctionType(); 311193326Sed 312193326Sed const FunctionProtoType *FT = 0; 313193326Sed if (D->hasWrittenPrototype()) 314193326Sed FT = dyn_cast<FunctionProtoType>(AFT); 315193326Sed 316193326Sed Proto += "("; 317193326Sed if (FT) { 318193326Sed llvm::raw_string_ostream POut(Proto); 319193326Sed DeclPrinter ParamPrinter(POut, Context, SubPolicy, Indentation); 320193326Sed for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 321193326Sed if (i) POut << ", "; 322193326Sed ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 323193326Sed } 324193326Sed 325193326Sed if (FT->isVariadic()) { 326193326Sed if (D->getNumParams()) POut << ", "; 327193326Sed POut << "..."; 328193326Sed } 329193326Sed } else if (D->isThisDeclarationADefinition() && !D->hasPrototype()) { 330193326Sed for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 331193326Sed if (i) 332193326Sed Proto += ", "; 333193326Sed Proto += D->getParamDecl(i)->getNameAsString(); 334193326Sed } 335193326Sed } 336193326Sed 337193326Sed Proto += ")"; 338193326Sed AFT->getResultType().getAsStringInternal(Proto, Policy); 339193326Sed } else { 340193326Sed D->getType().getAsStringInternal(Proto, Policy); 341193326Sed } 342193326Sed 343193326Sed Out << Proto; 344193326Sed 345193326Sed if (D->isPure()) 346193326Sed Out << " = 0"; 347193326Sed else if (D->isDeleted()) 348193326Sed Out << " = delete"; 349193326Sed else if (D->isThisDeclarationADefinition()) { 350193326Sed if (!D->hasPrototype() && D->getNumParams()) { 351193326Sed // This is a K&R function definition, so we need to print the 352193326Sed // parameters. 353193326Sed Out << '\n'; 354193326Sed DeclPrinter ParamPrinter(Out, Context, SubPolicy, Indentation); 355193326Sed Indentation += Policy.Indentation; 356193326Sed for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 357193326Sed Indent(); 358193326Sed ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 359193326Sed Out << ";\n"; 360193326Sed } 361193326Sed Indentation -= Policy.Indentation; 362193326Sed } else 363193326Sed Out << ' '; 364193326Sed 365195341Sed D->getBody()->printPretty(Out, Context, 0, SubPolicy, Indentation); 366193326Sed Out << '\n'; 367193326Sed } 368193326Sed} 369193326Sed 370193326Sedvoid DeclPrinter::VisitFieldDecl(FieldDecl *D) { 371193326Sed if (!Policy.SuppressSpecifiers && D->isMutable()) 372193326Sed Out << "mutable "; 373193326Sed 374193326Sed std::string Name = D->getNameAsString(); 375193326Sed D->getType().getAsStringInternal(Name, Policy); 376193326Sed Out << Name; 377193326Sed 378193326Sed if (D->isBitField()) { 379193326Sed Out << " : "; 380193326Sed D->getBitWidth()->printPretty(Out, Context, 0, Policy, Indentation); 381193326Sed } 382193326Sed} 383193326Sed 384193326Sedvoid DeclPrinter::VisitVarDecl(VarDecl *D) { 385193326Sed if (!Policy.SuppressSpecifiers && D->getStorageClass() != VarDecl::None) 386193326Sed Out << VarDecl::getStorageClassSpecifierString(D->getStorageClass()) << " "; 387193326Sed 388193326Sed if (!Policy.SuppressSpecifiers && D->isThreadSpecified()) 389193326Sed Out << "__thread "; 390193326Sed 391193326Sed std::string Name = D->getNameAsString(); 392193326Sed QualType T = D->getType(); 393193326Sed if (OriginalParmVarDecl *Parm = dyn_cast<OriginalParmVarDecl>(D)) 394193326Sed T = Parm->getOriginalType(); 395193326Sed T.getAsStringInternal(Name, Policy); 396193326Sed Out << Name; 397193326Sed if (D->getInit()) { 398193326Sed if (D->hasCXXDirectInitializer()) 399193326Sed Out << "("; 400193326Sed else 401193326Sed Out << " = "; 402193326Sed D->getInit()->printPretty(Out, Context, 0, Policy, Indentation); 403193326Sed if (D->hasCXXDirectInitializer()) 404193326Sed Out << ")"; 405193326Sed } 406193326Sed} 407193326Sed 408193326Sedvoid DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) { 409193326Sed VisitVarDecl(D); 410193326Sed} 411193326Sed 412193326Sedvoid DeclPrinter::VisitOriginalParmVarDecl(OriginalParmVarDecl *D) { 413193326Sed VisitVarDecl(D); 414193326Sed} 415193326Sed 416193326Sedvoid DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 417193326Sed Out << "__asm ("; 418193326Sed D->getAsmString()->printPretty(Out, Context, 0, Policy, Indentation); 419193326Sed Out << ")"; 420193326Sed} 421193326Sed 422193326Sed//---------------------------------------------------------------------------- 423193326Sed// C++ declarations 424193326Sed//---------------------------------------------------------------------------- 425193326Sedvoid DeclPrinter::VisitOverloadedFunctionDecl(OverloadedFunctionDecl *D) { 426193326Sed assert(false && 427193326Sed "OverloadedFunctionDecls aren't really decls and are never printed"); 428193326Sed} 429193326Sed 430193326Sedvoid DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) { 431193326Sed Out << "namespace " << D->getNameAsString() << " {\n"; 432193326Sed VisitDeclContext(D); 433193326Sed Indent() << "}"; 434193326Sed} 435193326Sed 436193326Sedvoid DeclPrinter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 437193326Sed Out << "using namespace "; 438193326Sed if (D->getQualifier()) 439193326Sed D->getQualifier()->print(Out, Policy); 440193326Sed Out << D->getNominatedNamespace()->getNameAsString(); 441193326Sed} 442193326Sed 443193326Sedvoid DeclPrinter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 444193326Sed Out << "namespace " << D->getNameAsString() << " = "; 445193326Sed if (D->getQualifier()) 446193326Sed D->getQualifier()->print(Out, Policy); 447193326Sed Out << D->getAliasedNamespace()->getNameAsString(); 448193326Sed} 449193326Sed 450193326Sedvoid DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) { 451193326Sed Out << D->getKindName(); 452193326Sed if (D->getIdentifier()) { 453193326Sed Out << " "; 454193326Sed Out << D->getNameAsString(); 455193326Sed } 456193326Sed 457193326Sed if (D->isDefinition()) { 458193326Sed // Print the base classes 459193326Sed if (D->getNumBases()) { 460193326Sed Out << " : "; 461193326Sed for(CXXRecordDecl::base_class_iterator Base = D->bases_begin(), 462193326Sed BaseEnd = D->bases_end(); 463193326Sed Base != BaseEnd; ++Base) { 464193326Sed if (Base != D->bases_begin()) 465193326Sed Out << ", "; 466193326Sed 467193326Sed if (Base->isVirtual()) 468193326Sed Out << "virtual "; 469193326Sed 470193326Sed switch(Base->getAccessSpecifierAsWritten()) { 471193326Sed case AS_none: break; 472193326Sed case AS_public: Out << "public "; break; 473193326Sed case AS_protected: Out << "protected "; break; 474193326Sed case AS_private: Out << " private "; break; 475193326Sed } 476193326Sed 477193326Sed Out << Base->getType().getAsString(Policy); 478193326Sed } 479193326Sed } 480193326Sed 481193326Sed // Print the class definition 482193326Sed // FIXME: Doesn't print access specifiers, e.g., "public:" 483193326Sed Out << " {\n"; 484193326Sed VisitDeclContext(D); 485193326Sed Indent() << "}"; 486193326Sed } 487193326Sed} 488193326Sed 489193326Sedvoid DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 490193326Sed const char *l; 491193326Sed if (D->getLanguage() == LinkageSpecDecl::lang_c) 492193326Sed l = "C"; 493193326Sed else { 494193326Sed assert(D->getLanguage() == LinkageSpecDecl::lang_cxx && 495193326Sed "unknown language in linkage specification"); 496193326Sed l = "C++"; 497193326Sed } 498193326Sed 499193326Sed Out << "extern \"" << l << "\" "; 500193326Sed if (D->hasBraces()) { 501193326Sed Out << "{\n"; 502193326Sed VisitDeclContext(D); 503193326Sed Indent() << "}"; 504193326Sed } else 505195341Sed Visit(*D->decls_begin()); 506193326Sed} 507193326Sed 508193326Sedvoid DeclPrinter::VisitTemplateDecl(TemplateDecl *D) { 509193576Sed Out << "template <"; 510193576Sed 511193576Sed TemplateParameterList *Params = D->getTemplateParameters(); 512193576Sed for (unsigned i = 0, e = Params->size(); i != e; ++i) { 513193576Sed if (i != 0) 514193576Sed Out << ", "; 515193576Sed 516193576Sed const Decl *Param = Params->getParam(i); 517193576Sed if (const TemplateTypeParmDecl *TTP = 518193576Sed dyn_cast<TemplateTypeParmDecl>(Param)) { 519193576Sed 520193576Sed QualType ParamType = 521193576Sed Context.getTypeDeclType(const_cast<TemplateTypeParmDecl*>(TTP)); 522193576Sed 523193576Sed if (TTP->wasDeclaredWithTypename()) 524193576Sed Out << "typename "; 525193576Sed else 526193576Sed Out << "class "; 527193576Sed 528194179Sed if (TTP->isParameterPack()) 529194179Sed Out << "... "; 530194179Sed 531193576Sed Out << ParamType.getAsString(Policy); 532193576Sed 533193576Sed if (TTP->hasDefaultArgument()) { 534193576Sed Out << " = "; 535193576Sed Out << TTP->getDefaultArgument().getAsString(Policy); 536193576Sed }; 537193576Sed } else if (const NonTypeTemplateParmDecl *NTTP = 538193576Sed dyn_cast<NonTypeTemplateParmDecl>(Param)) { 539193576Sed Out << NTTP->getType().getAsString(Policy); 540193576Sed 541193576Sed if (IdentifierInfo *Name = NTTP->getIdentifier()) { 542193576Sed Out << ' '; 543193576Sed Out << Name->getName(); 544193576Sed } 545193576Sed 546193576Sed if (NTTP->hasDefaultArgument()) { 547193576Sed Out << " = "; 548193576Sed NTTP->getDefaultArgument()->printPretty(Out, Context, 0, Policy, 549193576Sed Indentation); 550193576Sed } 551193576Sed } 552193576Sed } 553193576Sed 554193576Sed Out << "> "; 555193576Sed 556193326Sed Visit(D->getTemplatedDecl()); 557193326Sed} 558193326Sed 559193326Sed//---------------------------------------------------------------------------- 560193326Sed// Objective-C declarations 561193326Sed//---------------------------------------------------------------------------- 562193326Sed 563193326Sedvoid DeclPrinter::VisitObjCClassDecl(ObjCClassDecl *D) { 564193326Sed Out << "@class "; 565193326Sed for (ObjCClassDecl::iterator I = D->begin(), E = D->end(); 566193326Sed I != E; ++I) { 567193326Sed if (I != D->begin()) Out << ", "; 568193326Sed Out << (*I)->getNameAsString(); 569193326Sed } 570193326Sed} 571193326Sed 572193326Sedvoid DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) { 573193326Sed if (OMD->isInstanceMethod()) 574193326Sed Out << "- "; 575193326Sed else 576193326Sed Out << "+ "; 577193326Sed if (!OMD->getResultType().isNull()) 578193326Sed Out << '(' << OMD->getResultType().getAsString(Policy) << ")"; 579193326Sed 580193326Sed std::string name = OMD->getSelector().getAsString(); 581193326Sed std::string::size_type pos, lastPos = 0; 582193326Sed for (ObjCMethodDecl::param_iterator PI = OMD->param_begin(), 583193326Sed E = OMD->param_end(); PI != E; ++PI) { 584193326Sed // FIXME: selector is missing here! 585193326Sed pos = name.find_first_of(":", lastPos); 586193326Sed Out << " " << name.substr(lastPos, pos - lastPos); 587193326Sed Out << ":(" << (*PI)->getType().getAsString(Policy) << ")" 588193326Sed << (*PI)->getNameAsString(); 589193326Sed lastPos = pos + 1; 590193326Sed } 591193326Sed 592193326Sed if (OMD->param_begin() == OMD->param_end()) 593193326Sed Out << " " << name; 594193326Sed 595193326Sed if (OMD->isVariadic()) 596193326Sed Out << ", ..."; 597193326Sed 598193326Sed if (OMD->getBody()) { 599193326Sed Out << ' '; 600193326Sed OMD->getBody()->printPretty(Out, Context, 0, Policy); 601193326Sed Out << '\n'; 602193326Sed } 603193326Sed} 604193326Sed 605193326Sedvoid DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) { 606193326Sed std::string I = OID->getNameAsString(); 607193326Sed ObjCInterfaceDecl *SID = OID->getSuperClass(); 608193326Sed 609193326Sed if (SID) 610193326Sed Out << "@implementation " << I << " : " << SID->getNameAsString(); 611193326Sed else 612193326Sed Out << "@implementation " << I; 613193326Sed Out << "\n"; 614193326Sed VisitDeclContext(OID, false); 615193326Sed Out << "@end"; 616193326Sed} 617193326Sed 618193326Sedvoid DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) { 619193326Sed std::string I = OID->getNameAsString(); 620193326Sed ObjCInterfaceDecl *SID = OID->getSuperClass(); 621193326Sed 622193326Sed if (SID) 623193326Sed Out << "@interface " << I << " : " << SID->getNameAsString(); 624193326Sed else 625193326Sed Out << "@interface " << I; 626193326Sed 627193326Sed // Protocols? 628193326Sed const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols(); 629193326Sed if (!Protocols.empty()) { 630193326Sed for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(), 631193326Sed E = Protocols.end(); I != E; ++I) 632193326Sed Out << (I == Protocols.begin() ? '<' : ',') << (*I)->getNameAsString(); 633193326Sed } 634193326Sed 635193326Sed if (!Protocols.empty()) 636193326Sed Out << "> "; 637193326Sed 638193326Sed if (OID->ivar_size() > 0) { 639193326Sed Out << "{\n"; 640193326Sed Indentation += Policy.Indentation; 641193326Sed for (ObjCInterfaceDecl::ivar_iterator I = OID->ivar_begin(), 642193326Sed E = OID->ivar_end(); I != E; ++I) { 643193326Sed Indent() << (*I)->getType().getAsString(Policy) 644193326Sed << ' ' << (*I)->getNameAsString() << ";\n"; 645193326Sed } 646193326Sed Indentation -= Policy.Indentation; 647193326Sed Out << "}\n"; 648193326Sed } 649193326Sed 650193326Sed VisitDeclContext(OID, false); 651193326Sed Out << "@end"; 652193326Sed // FIXME: implement the rest... 653193326Sed} 654193326Sed 655193326Sedvoid DeclPrinter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { 656193326Sed Out << "@protocol "; 657193326Sed for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(), 658193326Sed E = D->protocol_end(); 659193326Sed I != E; ++I) { 660193326Sed if (I != D->protocol_begin()) Out << ", "; 661193326Sed Out << (*I)->getNameAsString(); 662193326Sed } 663193326Sed} 664193326Sed 665193326Sedvoid DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) { 666193326Sed Out << "@protocol " << PID->getNameAsString() << '\n'; 667193326Sed VisitDeclContext(PID, false); 668193326Sed Out << "@end"; 669193326Sed} 670193326Sed 671193326Sedvoid DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) { 672193326Sed Out << "@implementation " 673193326Sed << PID->getClassInterface()->getNameAsString() 674193326Sed << '(' << PID->getNameAsString() << ")\n"; 675193326Sed 676193326Sed VisitDeclContext(PID, false); 677193326Sed Out << "@end"; 678193326Sed // FIXME: implement the rest... 679193326Sed} 680193326Sed 681193326Sedvoid DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) { 682193326Sed Out << "@interface " 683193326Sed << PID->getClassInterface()->getNameAsString() 684193326Sed << '(' << PID->getNameAsString() << ")\n"; 685193326Sed VisitDeclContext(PID, false); 686193326Sed Out << "@end"; 687193326Sed 688193326Sed // FIXME: implement the rest... 689193326Sed} 690193326Sed 691193326Sedvoid DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) { 692193326Sed Out << "@compatibility_alias " << AID->getNameAsString() 693193326Sed << ' ' << AID->getClassInterface()->getNameAsString() << ";\n"; 694193326Sed} 695193326Sed 696193326Sed/// PrintObjCPropertyDecl - print a property declaration. 697193326Sed/// 698193326Sedvoid DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) { 699193326Sed if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required) 700193326Sed Out << "@required\n"; 701193326Sed else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional) 702193326Sed Out << "@optional\n"; 703193326Sed 704193326Sed Out << "@property"; 705193326Sed if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) { 706193326Sed bool first = true; 707193326Sed Out << " ("; 708193326Sed if (PDecl->getPropertyAttributes() & 709193326Sed ObjCPropertyDecl::OBJC_PR_readonly) { 710193326Sed Out << (first ? ' ' : ',') << "readonly"; 711193326Sed first = false; 712193326Sed } 713193326Sed 714193326Sed if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 715193326Sed Out << (first ? ' ' : ',') << "getter = " 716193326Sed << PDecl->getGetterName().getAsString(); 717193326Sed first = false; 718193326Sed } 719193326Sed if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 720193326Sed Out << (first ? ' ' : ',') << "setter = " 721193326Sed << PDecl->getSetterName().getAsString(); 722193326Sed first = false; 723193326Sed } 724193326Sed 725193326Sed if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) { 726193326Sed Out << (first ? ' ' : ',') << "assign"; 727193326Sed first = false; 728193326Sed } 729193326Sed 730193326Sed if (PDecl->getPropertyAttributes() & 731193326Sed ObjCPropertyDecl::OBJC_PR_readwrite) { 732193326Sed Out << (first ? ' ' : ',') << "readwrite"; 733193326Sed first = false; 734193326Sed } 735193326Sed 736193326Sed if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) { 737193326Sed Out << (first ? ' ' : ',') << "retain"; 738193326Sed first = false; 739193326Sed } 740193326Sed 741193326Sed if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) { 742193326Sed Out << (first ? ' ' : ',') << "copy"; 743193326Sed first = false; 744193326Sed } 745193326Sed 746193326Sed if (PDecl->getPropertyAttributes() & 747193326Sed ObjCPropertyDecl::OBJC_PR_nonatomic) { 748193326Sed Out << (first ? ' ' : ',') << "nonatomic"; 749193326Sed first = false; 750193326Sed } 751193326Sed Out << " )"; 752193326Sed } 753193326Sed Out << ' ' << PDecl->getType().getAsString(Policy) 754193326Sed << ' ' << PDecl->getNameAsString(); 755193326Sed} 756193326Sed 757193326Sedvoid DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) { 758193326Sed if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) 759193326Sed Out << "@synthesize "; 760193326Sed else 761193326Sed Out << "@dynamic "; 762193326Sed Out << PID->getPropertyDecl()->getNameAsString(); 763193326Sed if (PID->getPropertyIvarDecl()) 764193326Sed Out << "=" << PID->getPropertyIvarDecl()->getNameAsString(); 765193326Sed} 766