DeclPrinter.cpp revision 6206d53f67613958ae1b023aba337ebb46f11a8b
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/ExprCXX.h" 21#include "clang/AST/PrettyPrinter.h" 22#include "llvm/Support/raw_ostream.h" 23using namespace clang; 24 25namespace { 26 class DeclPrinter : public DeclVisitor<DeclPrinter> { 27 llvm::raw_ostream &Out; 28 ASTContext &Context; 29 PrintingPolicy Policy; 30 unsigned Indentation; 31 32 llvm::raw_ostream& Indent() { return Indent(Indentation); } 33 llvm::raw_ostream& Indent(unsigned Indentation); 34 void ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls); 35 36 void Print(AccessSpecifier AS); 37 38 public: 39 DeclPrinter(llvm::raw_ostream &Out, ASTContext &Context, 40 const PrintingPolicy &Policy, 41 unsigned Indentation = 0) 42 : Out(Out), Context(Context), Policy(Policy), Indentation(Indentation) { } 43 44 void VisitDeclContext(DeclContext *DC, bool Indent = true); 45 46 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 47 void VisitTypedefDecl(TypedefDecl *D); 48 void VisitEnumDecl(EnumDecl *D); 49 void VisitRecordDecl(RecordDecl *D); 50 void VisitEnumConstantDecl(EnumConstantDecl *D); 51 void VisitFunctionDecl(FunctionDecl *D); 52 void VisitFieldDecl(FieldDecl *D); 53 void VisitVarDecl(VarDecl *D); 54 void VisitParmVarDecl(ParmVarDecl *D); 55 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 56 void VisitNamespaceDecl(NamespaceDecl *D); 57 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 58 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 59 void VisitCXXRecordDecl(CXXRecordDecl *D); 60 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 61 void VisitTemplateDecl(TemplateDecl *D); 62 void VisitObjCMethodDecl(ObjCMethodDecl *D); 63 void VisitObjCClassDecl(ObjCClassDecl *D); 64 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 65 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 66 void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D); 67 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 68 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 69 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 70 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 71 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 72 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 73 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 74 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 75 void VisitUsingDecl(UsingDecl *D); 76 void VisitUsingShadowDecl(UsingShadowDecl *D); 77 }; 78} 79 80void Decl::print(llvm::raw_ostream &Out, unsigned Indentation) const { 81 print(Out, getASTContext().PrintingPolicy, Indentation); 82} 83 84void Decl::print(llvm::raw_ostream &Out, const PrintingPolicy &Policy, 85 unsigned Indentation) const { 86 DeclPrinter Printer(Out, getASTContext(), Policy, Indentation); 87 Printer.Visit(const_cast<Decl*>(this)); 88} 89 90static QualType GetBaseType(QualType T) { 91 // FIXME: This should be on the Type class! 92 QualType BaseType = T; 93 while (!BaseType->isSpecifierType()) { 94 if (isa<TypedefType>(BaseType)) 95 break; 96 else if (const PointerType* PTy = BaseType->getAs<PointerType>()) 97 BaseType = PTy->getPointeeType(); 98 else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType)) 99 BaseType = ATy->getElementType(); 100 else if (const FunctionType* FTy = BaseType->getAs<FunctionType>()) 101 BaseType = FTy->getResultType(); 102 else if (const VectorType *VTy = BaseType->getAs<VectorType>()) 103 BaseType = VTy->getElementType(); 104 else 105 assert(0 && "Unknown declarator!"); 106 } 107 return BaseType; 108} 109 110static QualType getDeclType(Decl* D) { 111 if (TypedefDecl* TDD = dyn_cast<TypedefDecl>(D)) 112 return TDD->getUnderlyingType(); 113 if (ValueDecl* VD = dyn_cast<ValueDecl>(D)) 114 return VD->getType(); 115 return QualType(); 116} 117 118void Decl::printGroup(Decl** Begin, unsigned NumDecls, 119 llvm::raw_ostream &Out, const PrintingPolicy &Policy, 120 unsigned Indentation) { 121 if (NumDecls == 1) { 122 (*Begin)->print(Out, Policy, Indentation); 123 return; 124 } 125 126 Decl** End = Begin + NumDecls; 127 TagDecl* TD = dyn_cast<TagDecl>(*Begin); 128 if (TD) 129 ++Begin; 130 131 PrintingPolicy SubPolicy(Policy); 132 if (TD && TD->isDefinition()) { 133 TD->print(Out, Policy, Indentation); 134 Out << " "; 135 SubPolicy.SuppressTag = true; 136 } 137 138 bool isFirst = true; 139 for ( ; Begin != End; ++Begin) { 140 if (isFirst) { 141 SubPolicy.SuppressSpecifiers = false; 142 isFirst = false; 143 } else { 144 if (!isFirst) Out << ", "; 145 SubPolicy.SuppressSpecifiers = true; 146 } 147 148 (*Begin)->print(Out, SubPolicy, Indentation); 149 } 150} 151 152void DeclContext::dumpDeclContext() const { 153 // Get the translation unit 154 const DeclContext *DC = this; 155 while (!DC->isTranslationUnit()) 156 DC = DC->getParent(); 157 158 ASTContext &Ctx = cast<TranslationUnitDecl>(DC)->getASTContext(); 159 DeclPrinter Printer(llvm::errs(), Ctx, Ctx.PrintingPolicy, 0); 160 Printer.VisitDeclContext(const_cast<DeclContext *>(this), /*Indent=*/false); 161} 162 163void Decl::dump() const { 164 print(llvm::errs()); 165} 166 167llvm::raw_ostream& DeclPrinter::Indent(unsigned Indentation) { 168 for (unsigned i = 0; i != Indentation; ++i) 169 Out << " "; 170 return Out; 171} 172 173void DeclPrinter::ProcessDeclGroup(llvm::SmallVectorImpl<Decl*>& Decls) { 174 this->Indent(); 175 Decl::printGroup(Decls.data(), Decls.size(), Out, Policy, Indentation); 176 Out << ";\n"; 177 Decls.clear(); 178 179} 180 181void DeclPrinter::Print(AccessSpecifier AS) { 182 switch(AS) { 183 case AS_none: assert(0 && "No access specifier!"); break; 184 case AS_public: Out << "public"; break; 185 case AS_protected: Out << "protected"; break; 186 case AS_private: Out << "private"; break; 187 } 188} 189 190//---------------------------------------------------------------------------- 191// Common C declarations 192//---------------------------------------------------------------------------- 193 194void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) { 195 if (Indent) 196 Indentation += Policy.Indentation; 197 198 llvm::SmallVector<Decl*, 2> Decls; 199 for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end(); 200 D != DEnd; ++D) { 201 if (!Policy.Dump) { 202 // Skip over implicit declarations in pretty-printing mode. 203 if (D->isImplicit()) continue; 204 // FIXME: Ugly hack so we don't pretty-print the builtin declaration 205 // of __builtin_va_list. There should be some other way to check that. 206 if (isa<NamedDecl>(*D) && cast<NamedDecl>(*D)->getNameAsString() == 207 "__builtin_va_list") 208 continue; 209 } 210 211 // The next bits of code handles stuff like "struct {int x;} a,b"; we're 212 // forced to merge the declarations because there's no other way to 213 // refer to the struct in question. This limited merging is safe without 214 // a bunch of other checks because it only merges declarations directly 215 // referring to the tag, not typedefs. 216 // 217 // Check whether the current declaration should be grouped with a previous 218 // unnamed struct. 219 QualType CurDeclType = getDeclType(*D); 220 if (!Decls.empty() && !CurDeclType.isNull()) { 221 QualType BaseType = GetBaseType(CurDeclType); 222 if (!BaseType.isNull() && isa<TagType>(BaseType) && 223 cast<TagType>(BaseType)->getDecl() == Decls[0]) { 224 Decls.push_back(*D); 225 continue; 226 } 227 } 228 229 // If we have a merged group waiting to be handled, handle it now. 230 if (!Decls.empty()) 231 ProcessDeclGroup(Decls); 232 233 // If the current declaration is an unnamed tag type, save it 234 // so we can merge it with the subsequent declaration(s) using it. 235 if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) { 236 Decls.push_back(*D); 237 continue; 238 } 239 240 if (isa<AccessSpecDecl>(*D)) { 241 Indentation -= Policy.Indentation; 242 this->Indent(); 243 Print(D->getAccess()); 244 Out << ":\n"; 245 Indentation += Policy.Indentation; 246 continue; 247 } 248 249 this->Indent(); 250 Visit(*D); 251 252 // FIXME: Need to be able to tell the DeclPrinter when 253 const char *Terminator = 0; 254 if (isa<FunctionDecl>(*D) && 255 cast<FunctionDecl>(*D)->isThisDeclarationADefinition()) 256 Terminator = 0; 257 else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody()) 258 Terminator = 0; 259 else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) || 260 isa<ObjCImplementationDecl>(*D) || 261 isa<ObjCInterfaceDecl>(*D) || 262 isa<ObjCProtocolDecl>(*D) || 263 isa<ObjCCategoryImplDecl>(*D) || 264 isa<ObjCCategoryDecl>(*D)) 265 Terminator = 0; 266 else if (isa<EnumConstantDecl>(*D)) { 267 DeclContext::decl_iterator Next = D; 268 ++Next; 269 if (Next != DEnd) 270 Terminator = ","; 271 } else 272 Terminator = ";"; 273 274 if (Terminator) 275 Out << Terminator; 276 Out << "\n"; 277 } 278 279 if (!Decls.empty()) 280 ProcessDeclGroup(Decls); 281 282 if (Indent) 283 Indentation -= Policy.Indentation; 284} 285 286void DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 287 VisitDeclContext(D, false); 288} 289 290void DeclPrinter::VisitTypedefDecl(TypedefDecl *D) { 291 std::string S = D->getNameAsString(); 292 D->getUnderlyingType().getAsStringInternal(S, Policy); 293 if (!Policy.SuppressSpecifiers) 294 Out << "typedef "; 295 Out << S; 296} 297 298void DeclPrinter::VisitEnumDecl(EnumDecl *D) { 299 Out << "enum " << D << " {\n"; 300 VisitDeclContext(D); 301 Indent() << "}"; 302} 303 304void DeclPrinter::VisitRecordDecl(RecordDecl *D) { 305 Out << D->getKindName(); 306 if (D->getIdentifier()) 307 Out << ' ' << D; 308 309 if (D->isDefinition()) { 310 Out << " {\n"; 311 VisitDeclContext(D); 312 Indent() << "}"; 313 } 314} 315 316void DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) { 317 Out << D; 318 if (Expr *Init = D->getInitExpr()) { 319 Out << " = "; 320 Init->printPretty(Out, Context, 0, Policy, Indentation); 321 } 322} 323 324void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) { 325 if (!Policy.SuppressSpecifiers) { 326 switch (D->getStorageClass()) { 327 case FunctionDecl::None: break; 328 case FunctionDecl::Extern: Out << "extern "; break; 329 case FunctionDecl::Static: Out << "static "; break; 330 case FunctionDecl::PrivateExtern: Out << "__private_extern__ "; break; 331 } 332 333 if (D->isInlineSpecified()) Out << "inline "; 334 if (D->isVirtualAsWritten()) Out << "virtual "; 335 } 336 337 PrintingPolicy SubPolicy(Policy); 338 SubPolicy.SuppressSpecifiers = false; 339 std::string Proto = D->getNameAsString(); 340 if (isa<FunctionType>(D->getType().getTypePtr())) { 341 const FunctionType *AFT = D->getType()->getAs<FunctionType>(); 342 343 const FunctionProtoType *FT = 0; 344 if (D->hasWrittenPrototype()) 345 FT = dyn_cast<FunctionProtoType>(AFT); 346 347 Proto += "("; 348 if (FT) { 349 llvm::raw_string_ostream POut(Proto); 350 DeclPrinter ParamPrinter(POut, Context, SubPolicy, Indentation); 351 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 352 if (i) POut << ", "; 353 ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 354 } 355 356 if (FT->isVariadic()) { 357 if (D->getNumParams()) POut << ", "; 358 POut << "..."; 359 } 360 } else if (D->isThisDeclarationADefinition() && !D->hasPrototype()) { 361 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 362 if (i) 363 Proto += ", "; 364 Proto += D->getParamDecl(i)->getNameAsString(); 365 } 366 } 367 368 Proto += ")"; 369 370 if (FT && FT->hasExceptionSpec()) { 371 Proto += " throw("; 372 if (FT->hasAnyExceptionSpec()) 373 Proto += "..."; 374 else 375 for (unsigned I = 0, N = FT->getNumExceptions(); I != N; ++I) { 376 if (I) 377 Proto += ", "; 378 379 380 std::string ExceptionType; 381 FT->getExceptionType(I).getAsStringInternal(ExceptionType, SubPolicy); 382 Proto += ExceptionType; 383 } 384 Proto += ")"; 385 } 386 387 if (D->hasAttr<NoReturnAttr>()) 388 Proto += " __attribute((noreturn))"; 389 if (CXXConstructorDecl *CDecl = dyn_cast<CXXConstructorDecl>(D)) { 390 if (CDecl->getNumBaseOrMemberInitializers() > 0) { 391 Proto += " : "; 392 Out << Proto; 393 Proto.clear(); 394 for (CXXConstructorDecl::init_const_iterator B = CDecl->init_begin(), 395 E = CDecl->init_end(); 396 B != E; ++B) { 397 CXXBaseOrMemberInitializer * BMInitializer = (*B); 398 if (B != CDecl->init_begin()) 399 Out << ", "; 400 if (BMInitializer->isMemberInitializer()) { 401 FieldDecl *FD = BMInitializer->getMember(); 402 Out << FD; 403 } else { 404 Out << QualType(BMInitializer->getBaseClass(), 0).getAsString(); 405 } 406 407 Out << "("; 408 if (!BMInitializer->getInit()) { 409 // Nothing to print 410 } else { 411 Expr *Init = BMInitializer->getInit(); 412 if (CXXExprWithTemporaries *Tmp 413 = dyn_cast<CXXExprWithTemporaries>(Init)) 414 Init = Tmp->getSubExpr(); 415 416 Init = Init->IgnoreParens(); 417 418 Expr *SimpleInit = 0; 419 Expr **Args = 0; 420 unsigned NumArgs = 0; 421 if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) { 422 Args = ParenList->getExprs(); 423 NumArgs = ParenList->getNumExprs(); 424 } else if (CXXConstructExpr *Construct 425 = dyn_cast<CXXConstructExpr>(Init)) { 426 Args = Construct->getArgs(); 427 NumArgs = Construct->getNumArgs(); 428 } else 429 SimpleInit = Init; 430 431 if (SimpleInit) 432 SimpleInit->printPretty(Out, Context, 0, Policy, Indentation); 433 else { 434 for (unsigned I = 0; I != NumArgs; ++I) { 435 if (isa<CXXDefaultArgExpr>(Args[I])) 436 break; 437 438 if (I) 439 Out << ", "; 440 Args[I]->printPretty(Out, Context, 0, Policy, Indentation); 441 } 442 } 443 } 444 Out << ")"; 445 } 446 } 447 } 448 else 449 AFT->getResultType().getAsStringInternal(Proto, Policy); 450 } else { 451 D->getType().getAsStringInternal(Proto, Policy); 452 } 453 454 Out << Proto; 455 456 if (D->isPure()) 457 Out << " = 0"; 458 else if (D->isDeleted()) 459 Out << " = delete"; 460 else if (D->isThisDeclarationADefinition()) { 461 if (!D->hasPrototype() && D->getNumParams()) { 462 // This is a K&R function definition, so we need to print the 463 // parameters. 464 Out << '\n'; 465 DeclPrinter ParamPrinter(Out, Context, SubPolicy, Indentation); 466 Indentation += Policy.Indentation; 467 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 468 Indent(); 469 ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 470 Out << ";\n"; 471 } 472 Indentation -= Policy.Indentation; 473 } else 474 Out << ' '; 475 476 D->getBody()->printPretty(Out, Context, 0, SubPolicy, Indentation); 477 Out << '\n'; 478 } 479} 480 481void DeclPrinter::VisitFieldDecl(FieldDecl *D) { 482 if (!Policy.SuppressSpecifiers && D->isMutable()) 483 Out << "mutable "; 484 485 std::string Name = D->getNameAsString(); 486 D->getType().getAsStringInternal(Name, Policy); 487 Out << Name; 488 489 if (D->isBitField()) { 490 Out << " : "; 491 D->getBitWidth()->printPretty(Out, Context, 0, Policy, Indentation); 492 } 493} 494 495void DeclPrinter::VisitVarDecl(VarDecl *D) { 496 if (!Policy.SuppressSpecifiers && D->getStorageClass() != VarDecl::None) 497 Out << VarDecl::getStorageClassSpecifierString(D->getStorageClass()) << " "; 498 499 if (!Policy.SuppressSpecifiers && D->isThreadSpecified()) 500 Out << "__thread "; 501 502 std::string Name = D->getNameAsString(); 503 QualType T = D->getType(); 504 if (ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) 505 T = Parm->getOriginalType(); 506 T.getAsStringInternal(Name, Policy); 507 Out << Name; 508 if (D->getInit()) { 509 if (D->hasCXXDirectInitializer()) 510 Out << "("; 511 else 512 Out << " = "; 513 D->getInit()->printPretty(Out, Context, 0, Policy, Indentation); 514 if (D->hasCXXDirectInitializer()) 515 Out << ")"; 516 } 517} 518 519void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) { 520 VisitVarDecl(D); 521} 522 523void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 524 Out << "__asm ("; 525 D->getAsmString()->printPretty(Out, Context, 0, Policy, Indentation); 526 Out << ")"; 527} 528 529//---------------------------------------------------------------------------- 530// C++ declarations 531//---------------------------------------------------------------------------- 532void DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) { 533 Out << "namespace " << D << " {\n"; 534 VisitDeclContext(D); 535 Indent() << "}"; 536} 537 538void DeclPrinter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 539 Out << "using namespace "; 540 if (D->getQualifier()) 541 D->getQualifier()->print(Out, Policy); 542 Out << D->getNominatedNamespaceAsWritten(); 543} 544 545void DeclPrinter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 546 Out << "namespace " << D << " = "; 547 if (D->getQualifier()) 548 D->getQualifier()->print(Out, Policy); 549 Out << D->getAliasedNamespace(); 550} 551 552void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) { 553 Out << D->getKindName(); 554 if (D->getIdentifier()) 555 Out << ' ' << D; 556 557 if (D->isDefinition()) { 558 // Print the base classes 559 if (D->getNumBases()) { 560 Out << " : "; 561 for (CXXRecordDecl::base_class_iterator Base = D->bases_begin(), 562 BaseEnd = D->bases_end(); Base != BaseEnd; ++Base) { 563 if (Base != D->bases_begin()) 564 Out << ", "; 565 566 if (Base->isVirtual()) 567 Out << "virtual "; 568 569 AccessSpecifier AS = Base->getAccessSpecifierAsWritten(); 570 if (AS != AS_none) 571 Print(AS); 572 Out << " " << Base->getType().getAsString(Policy); 573 } 574 } 575 576 // Print the class definition 577 // FIXME: Doesn't print access specifiers, e.g., "public:" 578 Out << " {\n"; 579 VisitDeclContext(D); 580 Indent() << "}"; 581 } 582} 583 584void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 585 const char *l; 586 if (D->getLanguage() == LinkageSpecDecl::lang_c) 587 l = "C"; 588 else { 589 assert(D->getLanguage() == LinkageSpecDecl::lang_cxx && 590 "unknown language in linkage specification"); 591 l = "C++"; 592 } 593 594 Out << "extern \"" << l << "\" "; 595 if (D->hasBraces()) { 596 Out << "{\n"; 597 VisitDeclContext(D); 598 Indent() << "}"; 599 } else 600 Visit(*D->decls_begin()); 601} 602 603void DeclPrinter::VisitTemplateDecl(TemplateDecl *D) { 604 Out << "template <"; 605 606 TemplateParameterList *Params = D->getTemplateParameters(); 607 for (unsigned i = 0, e = Params->size(); i != e; ++i) { 608 if (i != 0) 609 Out << ", "; 610 611 const Decl *Param = Params->getParam(i); 612 if (const TemplateTypeParmDecl *TTP = 613 dyn_cast<TemplateTypeParmDecl>(Param)) { 614 615 QualType ParamType = 616 Context.getTypeDeclType(const_cast<TemplateTypeParmDecl*>(TTP)); 617 618 if (TTP->wasDeclaredWithTypename()) 619 Out << "typename "; 620 else 621 Out << "class "; 622 623 if (TTP->isParameterPack()) 624 Out << "... "; 625 626 Out << ParamType.getAsString(Policy); 627 628 if (TTP->hasDefaultArgument()) { 629 Out << " = "; 630 Out << TTP->getDefaultArgument().getAsString(Policy); 631 }; 632 } else if (const NonTypeTemplateParmDecl *NTTP = 633 dyn_cast<NonTypeTemplateParmDecl>(Param)) { 634 Out << NTTP->getType().getAsString(Policy); 635 636 if (IdentifierInfo *Name = NTTP->getIdentifier()) { 637 Out << ' '; 638 Out << Name->getName(); 639 } 640 641 if (NTTP->hasDefaultArgument()) { 642 Out << " = "; 643 NTTP->getDefaultArgument()->printPretty(Out, Context, 0, Policy, 644 Indentation); 645 } 646 } 647 } 648 649 Out << "> "; 650 651 Visit(D->getTemplatedDecl()); 652} 653 654//---------------------------------------------------------------------------- 655// Objective-C declarations 656//---------------------------------------------------------------------------- 657 658void DeclPrinter::VisitObjCClassDecl(ObjCClassDecl *D) { 659 Out << "@class "; 660 for (ObjCClassDecl::iterator I = D->begin(), E = D->end(); 661 I != E; ++I) { 662 if (I != D->begin()) Out << ", "; 663 Out << I->getInterface(); 664 } 665} 666 667void DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) { 668 if (OMD->isInstanceMethod()) 669 Out << "- "; 670 else 671 Out << "+ "; 672 if (!OMD->getResultType().isNull()) 673 Out << '(' << OMD->getResultType().getAsString(Policy) << ")"; 674 675 std::string name = OMD->getSelector().getAsString(); 676 std::string::size_type pos, lastPos = 0; 677 for (ObjCMethodDecl::param_iterator PI = OMD->param_begin(), 678 E = OMD->param_end(); PI != E; ++PI) { 679 // FIXME: selector is missing here! 680 pos = name.find_first_of(":", lastPos); 681 Out << " " << name.substr(lastPos, pos - lastPos); 682 Out << ":(" << (*PI)->getType().getAsString(Policy) << ')' << *PI; 683 lastPos = pos + 1; 684 } 685 686 if (OMD->param_begin() == OMD->param_end()) 687 Out << " " << name; 688 689 if (OMD->isVariadic()) 690 Out << ", ..."; 691 692 if (OMD->getBody()) { 693 Out << ' '; 694 OMD->getBody()->printPretty(Out, Context, 0, Policy); 695 Out << '\n'; 696 } 697} 698 699void DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) { 700 std::string I = OID->getNameAsString(); 701 ObjCInterfaceDecl *SID = OID->getSuperClass(); 702 703 if (SID) 704 Out << "@implementation " << I << " : " << SID; 705 else 706 Out << "@implementation " << I; 707 Out << "\n"; 708 VisitDeclContext(OID, false); 709 Out << "@end"; 710} 711 712void DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) { 713 std::string I = OID->getNameAsString(); 714 ObjCInterfaceDecl *SID = OID->getSuperClass(); 715 716 if (SID) 717 Out << "@interface " << I << " : " << SID; 718 else 719 Out << "@interface " << I; 720 721 // Protocols? 722 const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols(); 723 if (!Protocols.empty()) { 724 for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(), 725 E = Protocols.end(); I != E; ++I) 726 Out << (I == Protocols.begin() ? '<' : ',') << *I; 727 } 728 729 if (!Protocols.empty()) 730 Out << "> "; 731 732 if (OID->ivar_size() > 0) { 733 Out << "{\n"; 734 Indentation += Policy.Indentation; 735 for (ObjCInterfaceDecl::ivar_iterator I = OID->ivar_begin(), 736 E = OID->ivar_end(); I != E; ++I) { 737 Indent() << (*I)->getType().getAsString(Policy) << ' ' << *I << ";\n"; 738 } 739 Indentation -= Policy.Indentation; 740 Out << "}\n"; 741 } 742 743 VisitDeclContext(OID, false); 744 Out << "@end"; 745 // FIXME: implement the rest... 746} 747 748void DeclPrinter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { 749 Out << "@protocol "; 750 for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(), 751 E = D->protocol_end(); 752 I != E; ++I) { 753 if (I != D->protocol_begin()) Out << ", "; 754 Out << *I; 755 } 756} 757 758void DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) { 759 Out << "@protocol " << PID << '\n'; 760 VisitDeclContext(PID, false); 761 Out << "@end"; 762} 763 764void DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) { 765 Out << "@implementation " << PID->getClassInterface() << '(' << PID << ")\n"; 766 767 VisitDeclContext(PID, false); 768 Out << "@end"; 769 // FIXME: implement the rest... 770} 771 772void DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) { 773 Out << "@interface " << PID->getClassInterface() << '(' << PID << ")\n"; 774 VisitDeclContext(PID, false); 775 Out << "@end"; 776 777 // FIXME: implement the rest... 778} 779 780void DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) { 781 Out << "@compatibility_alias " << AID 782 << ' ' << AID->getClassInterface() << ";\n"; 783} 784 785/// PrintObjCPropertyDecl - print a property declaration. 786/// 787void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) { 788 if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required) 789 Out << "@required\n"; 790 else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional) 791 Out << "@optional\n"; 792 793 Out << "@property"; 794 if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) { 795 bool first = true; 796 Out << " ("; 797 if (PDecl->getPropertyAttributes() & 798 ObjCPropertyDecl::OBJC_PR_readonly) { 799 Out << (first ? ' ' : ',') << "readonly"; 800 first = false; 801 } 802 803 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 804 Out << (first ? ' ' : ',') << "getter = " 805 << PDecl->getGetterName().getAsString(); 806 first = false; 807 } 808 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 809 Out << (first ? ' ' : ',') << "setter = " 810 << PDecl->getSetterName().getAsString(); 811 first = false; 812 } 813 814 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) { 815 Out << (first ? ' ' : ',') << "assign"; 816 first = false; 817 } 818 819 if (PDecl->getPropertyAttributes() & 820 ObjCPropertyDecl::OBJC_PR_readwrite) { 821 Out << (first ? ' ' : ',') << "readwrite"; 822 first = false; 823 } 824 825 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) { 826 Out << (first ? ' ' : ',') << "retain"; 827 first = false; 828 } 829 830 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) { 831 Out << (first ? ' ' : ',') << "copy"; 832 first = false; 833 } 834 835 if (PDecl->getPropertyAttributes() & 836 ObjCPropertyDecl::OBJC_PR_nonatomic) { 837 Out << (first ? ' ' : ',') << "nonatomic"; 838 first = false; 839 } 840 Out << " )"; 841 } 842 Out << ' ' << PDecl->getType().getAsString(Policy) << ' ' << PDecl; 843} 844 845void DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) { 846 if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) 847 Out << "@synthesize "; 848 else 849 Out << "@dynamic "; 850 Out << PID->getPropertyDecl(); 851 if (PID->getPropertyIvarDecl()) 852 Out << '=' << PID->getPropertyIvarDecl(); 853} 854 855void DeclPrinter::VisitUsingDecl(UsingDecl *D) { 856 Out << "using "; 857 D->getTargetNestedNameDecl()->print(Out, Policy); 858 Out << D; 859} 860 861void 862DeclPrinter::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { 863 Out << "using typename "; 864 D->getTargetNestedNameSpecifier()->print(Out, Policy); 865 Out << D->getDeclName(); 866} 867 868void DeclPrinter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 869 Out << "using "; 870 D->getTargetNestedNameSpecifier()->print(Out, Policy); 871 Out << D->getDeclName(); 872} 873 874void DeclPrinter::VisitUsingShadowDecl(UsingShadowDecl *D) { 875 // ignore 876} 877