DeclPrinter.cpp revision 7b6248766dda6eb4c410d58db25a8dd2824f78cc
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, unsigned Indentation) { 78 print(Out, getASTContext().PrintingPolicy, Indentation); 79} 80 81void Decl::print(llvm::raw_ostream &Out, const PrintingPolicy &Policy, 82 unsigned Indentation) { 83 DeclPrinter Printer(Out, getASTContext(), Policy, Indentation); 84 Printer.Visit(this); 85} 86 87static QualType GetBaseType(QualType T) { 88 // FIXME: This should be on the Type class! 89 QualType BaseType = T; 90 while (!BaseType->isSpecifierType()) { 91 if (isa<TypedefType>(BaseType)) 92 break; 93 else if (const PointerType* PTy = BaseType->getAsPointerType()) 94 BaseType = PTy->getPointeeType(); 95 else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType)) 96 BaseType = ATy->getElementType(); 97 else if (const FunctionType* FTy = BaseType->getAsFunctionType()) 98 BaseType = FTy->getResultType(); 99 else if (const VectorType *VTy = BaseType->getAsVectorType()) 100 BaseType = VTy->getElementType(); 101 else 102 assert(0 && "Unknown declarator!"); 103 } 104 return BaseType; 105} 106 107static QualType getDeclType(Decl* D) { 108 if (TypedefDecl* TDD = dyn_cast<TypedefDecl>(D)) 109 return TDD->getUnderlyingType(); 110 if (ValueDecl* VD = dyn_cast<ValueDecl>(D)) 111 return VD->getType(); 112 return QualType(); 113} 114 115void Decl::printGroup(Decl** Begin, unsigned NumDecls, 116 llvm::raw_ostream &Out, const PrintingPolicy &Policy, 117 unsigned Indentation) { 118 if (NumDecls == 1) { 119 (*Begin)->print(Out, 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, 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, SubPolicy, Indentation); 146 } 147} 148 149void Decl::dump() { 150 print(llvm::errs()); 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, Policy, Indentation); 162 Out << ";\n"; 163 Decls.clear(); 164 165} 166 167//---------------------------------------------------------------------------- 168// Common C declarations 169//---------------------------------------------------------------------------- 170 171void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) { 172 if (Indent) 173 Indentation += Policy.Indentation; 174 175 llvm::SmallVector<Decl*, 2> Decls; 176 for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end(); 177 D != DEnd; ++D) { 178 if (!Policy.Dump) { 179 // Skip over implicit declarations in pretty-printing mode. 180 if (D->isImplicit()) continue; 181 // FIXME: Ugly hack so we don't pretty-print the builtin declaration 182 // of __builtin_va_list. There should be some other way to check that. 183 if (isa<NamedDecl>(*D) && cast<NamedDecl>(*D)->getNameAsString() == 184 "__builtin_va_list") 185 continue; 186 } 187 188 // The next bits of code handles stuff like "struct {int x;} a,b"; we're 189 // forced to merge the declarations because there's no other way to 190 // refer to the struct in question. This limited merging is safe without 191 // a bunch of other checks because it only merges declarations directly 192 // referring to the tag, not typedefs. 193 // 194 // Check whether the current declaration should be grouped with a previous 195 // unnamed struct. 196 QualType CurDeclType = getDeclType(*D); 197 if (!Decls.empty() && !CurDeclType.isNull()) { 198 QualType BaseType = GetBaseType(CurDeclType); 199 if (!BaseType.isNull() && isa<TagType>(BaseType) && 200 cast<TagType>(BaseType)->getDecl() == Decls[0]) { 201 Decls.push_back(*D); 202 continue; 203 } 204 } 205 206 // If we have a merged group waiting to be handled, handle it now. 207 if (!Decls.empty()) 208 ProcessDeclGroup(Decls); 209 210 // If the current declaration is an unnamed tag type, save it 211 // so we can merge it with the subsequent declaration(s) using it. 212 if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) { 213 Decls.push_back(*D); 214 continue; 215 } 216 this->Indent(); 217 Visit(*D); 218 219 // FIXME: Need to be able to tell the DeclPrinter when 220 const char *Terminator = 0; 221 if (isa<FunctionDecl>(*D) && 222 cast<FunctionDecl>(*D)->isThisDeclarationADefinition()) 223 Terminator = 0; 224 else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody()) 225 Terminator = 0; 226 else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) || 227 isa<ObjCImplementationDecl>(*D) || 228 isa<ObjCInterfaceDecl>(*D) || 229 isa<ObjCProtocolDecl>(*D) || 230 isa<ObjCCategoryImplDecl>(*D) || 231 isa<ObjCCategoryDecl>(*D)) 232 Terminator = 0; 233 else if (isa<EnumConstantDecl>(*D)) { 234 DeclContext::decl_iterator Next = D; 235 ++Next; 236 if (Next != DEnd) 237 Terminator = ","; 238 } else 239 Terminator = ";"; 240 241 if (Terminator) 242 Out << Terminator; 243 Out << "\n"; 244 } 245 246 if (!Decls.empty()) 247 ProcessDeclGroup(Decls); 248 249 if (Indent) 250 Indentation -= Policy.Indentation; 251} 252 253void DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 254 VisitDeclContext(D, false); 255} 256 257void DeclPrinter::VisitTypedefDecl(TypedefDecl *D) { 258 std::string S = D->getNameAsString(); 259 D->getUnderlyingType().getAsStringInternal(S, Policy); 260 if (!Policy.SuppressSpecifiers) 261 Out << "typedef "; 262 Out << S; 263} 264 265void DeclPrinter::VisitEnumDecl(EnumDecl *D) { 266 Out << "enum " << D->getNameAsString() << " {\n"; 267 VisitDeclContext(D); 268 Indent() << "}"; 269} 270 271void DeclPrinter::VisitRecordDecl(RecordDecl *D) { 272 Out << D->getKindName(); 273 if (D->getIdentifier()) { 274 Out << " "; 275 Out << D->getNameAsString(); 276 } 277 278 if (D->isDefinition()) { 279 Out << " {\n"; 280 VisitDeclContext(D); 281 Indent() << "}"; 282 } 283} 284 285void DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) { 286 Out << D->getNameAsString(); 287 if (Expr *Init = D->getInitExpr()) { 288 Out << " = "; 289 Init->printPretty(Out, Context, 0, Policy, Indentation); 290 } 291} 292 293void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) { 294 if (!Policy.SuppressSpecifiers) { 295 switch (D->getStorageClass()) { 296 case FunctionDecl::None: break; 297 case FunctionDecl::Extern: Out << "extern "; break; 298 case FunctionDecl::Static: Out << "static "; break; 299 case FunctionDecl::PrivateExtern: Out << "__private_extern__ "; break; 300 } 301 302 if (D->isInline()) Out << "inline "; 303 if (D->isVirtualAsWritten()) Out << "virtual "; 304 } 305 306 PrintingPolicy SubPolicy(Policy); 307 SubPolicy.SuppressSpecifiers = false; 308 std::string Proto = D->getNameAsString(); 309 if (isa<FunctionType>(D->getType().getTypePtr())) { 310 const FunctionType *AFT = D->getType()->getAsFunctionType(); 311 312 const FunctionProtoType *FT = 0; 313 if (D->hasWrittenPrototype()) 314 FT = dyn_cast<FunctionProtoType>(AFT); 315 316 Proto += "("; 317 if (FT) { 318 llvm::raw_string_ostream POut(Proto); 319 DeclPrinter ParamPrinter(POut, Context, SubPolicy, Indentation); 320 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 321 if (i) POut << ", "; 322 ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 323 } 324 325 if (FT->isVariadic()) { 326 if (D->getNumParams()) POut << ", "; 327 POut << "..."; 328 } 329 } else if (D->isThisDeclarationADefinition() && !D->hasPrototype()) { 330 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 331 if (i) 332 Proto += ", "; 333 Proto += D->getParamDecl(i)->getNameAsString(); 334 } 335 } 336 337 Proto += ")"; 338 if (CXXConstructorDecl *CDecl = dyn_cast<CXXConstructorDecl>(D)) { 339 if (CDecl->getNumBaseOrMemberInitializers() > 0) { 340 Proto += " : "; 341 Out << Proto; 342 Proto.clear(); 343 for (CXXConstructorDecl::init_const_iterator B = CDecl->init_begin(), 344 E = CDecl->init_end(); 345 B != E; ++B) { 346 CXXBaseOrMemberInitializer * BMInitializer = (*B); 347 if (B != CDecl->init_begin()) 348 Out << ", "; 349 bool hasArguments = (BMInitializer->begin() != BMInitializer->end()); 350 if (BMInitializer->isMemberInitializer()) { 351 FieldDecl *FD = BMInitializer->getMember(); 352 Out << FD->getNameAsString(); 353 } 354 else // FIXME. skip dependent types for now. 355 if (const RecordType *RT = 356 BMInitializer->getBaseClass()->getAsRecordType()) { 357 const CXXRecordDecl *BaseDecl = 358 cast<CXXRecordDecl>(RT->getDecl()); 359 Out << BaseDecl->getNameAsString(); 360 } 361 if (hasArguments) { 362 Out << "("; 363 for (CXXBaseOrMemberInitializer::arg_const_iterator BE = 364 BMInitializer->begin(), EE = BMInitializer->end(); 365 BE != EE; BE++) { 366 if (BE != BMInitializer->begin()) 367 Out<< ", "; 368 Expr *Exp = (*BE); 369 Exp->printPretty(Out, Context, 0, Policy, Indentation); 370 } 371 Out << ")"; 372 } else 373 Out << "()"; 374 } 375 } 376 } 377#if 0 378 else if (CXXDestructorDecl *DDecl = dyn_cast<CXXDestructorDecl>(D)) { 379 if (DDecl->getNumBaseOrMemberDestructions() > 0) { 380 // FIXME. This is strictly for visualization of destructor's AST for 381 // how base/members are destructed. It has no other validity. 382 assert (D->isThisDeclarationADefinition() && "Destructor with dtor-list"); 383 Proto += " : "; 384 for (CXXDestructorDecl::destr_const_iterator B = DDecl->destr_begin(), 385 E = DDecl->destr_end(); 386 B != E; ++B) { 387 CXXBaseOrMemberInitializer * BMInitializer = (*B); 388 if (B != DDecl->destr_begin()) 389 Proto += ", "; 390 391 if (BMInitializer->isMemberInitializer()) { 392 FieldDecl *FD = BMInitializer->getMember(); 393 Proto += "~"; 394 Proto += FD->getNameAsString(); 395 } 396 else // FIXME. skip dependent types for now. 397 if (const RecordType *RT = 398 BMInitializer->getBaseClass()->getAsRecordType()) { 399 const CXXRecordDecl *BaseDecl = 400 cast<CXXRecordDecl>(RT->getDecl()); 401 Proto += "~"; 402 Proto += BaseDecl->getNameAsString(); 403 } 404 Proto += "()"; 405 } 406 } 407 } 408#endif 409 else 410 AFT->getResultType().getAsStringInternal(Proto, Policy); 411 } else { 412 D->getType().getAsStringInternal(Proto, Policy); 413 } 414 415 Out << Proto; 416 417 if (D->isPure()) 418 Out << " = 0"; 419 else if (D->isDeleted()) 420 Out << " = delete"; 421 else if (D->isThisDeclarationADefinition()) { 422 if (!D->hasPrototype() && D->getNumParams()) { 423 // This is a K&R function definition, so we need to print the 424 // parameters. 425 Out << '\n'; 426 DeclPrinter ParamPrinter(Out, Context, SubPolicy, Indentation); 427 Indentation += Policy.Indentation; 428 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 429 Indent(); 430 ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 431 Out << ";\n"; 432 } 433 Indentation -= Policy.Indentation; 434 } else 435 Out << ' '; 436 437 D->getBody()->printPretty(Out, Context, 0, SubPolicy, Indentation); 438 Out << '\n'; 439 } 440} 441 442void DeclPrinter::VisitFieldDecl(FieldDecl *D) { 443 if (!Policy.SuppressSpecifiers && D->isMutable()) 444 Out << "mutable "; 445 446 std::string Name = D->getNameAsString(); 447 D->getType().getAsStringInternal(Name, Policy); 448 Out << Name; 449 450 if (D->isBitField()) { 451 Out << " : "; 452 D->getBitWidth()->printPretty(Out, Context, 0, Policy, Indentation); 453 } 454} 455 456void DeclPrinter::VisitVarDecl(VarDecl *D) { 457 if (!Policy.SuppressSpecifiers && D->getStorageClass() != VarDecl::None) 458 Out << VarDecl::getStorageClassSpecifierString(D->getStorageClass()) << " "; 459 460 if (!Policy.SuppressSpecifiers && D->isThreadSpecified()) 461 Out << "__thread "; 462 463 std::string Name = D->getNameAsString(); 464 QualType T = D->getType(); 465 if (OriginalParmVarDecl *Parm = dyn_cast<OriginalParmVarDecl>(D)) 466 T = Parm->getOriginalType(); 467 T.getAsStringInternal(Name, Policy); 468 Out << Name; 469 if (D->getInit()) { 470 if (D->hasCXXDirectInitializer()) 471 Out << "("; 472 else 473 Out << " = "; 474 D->getInit()->printPretty(Out, Context, 0, Policy, Indentation); 475 if (D->hasCXXDirectInitializer()) 476 Out << ")"; 477 } 478} 479 480void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) { 481 VisitVarDecl(D); 482} 483 484void DeclPrinter::VisitOriginalParmVarDecl(OriginalParmVarDecl *D) { 485 VisitVarDecl(D); 486} 487 488void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 489 Out << "__asm ("; 490 D->getAsmString()->printPretty(Out, Context, 0, Policy, Indentation); 491 Out << ")"; 492} 493 494//---------------------------------------------------------------------------- 495// C++ declarations 496//---------------------------------------------------------------------------- 497void DeclPrinter::VisitOverloadedFunctionDecl(OverloadedFunctionDecl *D) { 498 assert(false && 499 "OverloadedFunctionDecls aren't really decls and are never printed"); 500} 501 502void DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) { 503 Out << "namespace " << D->getNameAsString() << " {\n"; 504 VisitDeclContext(D); 505 Indent() << "}"; 506} 507 508void DeclPrinter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 509 Out << "using namespace "; 510 if (D->getQualifier()) 511 D->getQualifier()->print(Out, Policy); 512 Out << D->getNominatedNamespace()->getNameAsString(); 513} 514 515void DeclPrinter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 516 Out << "namespace " << D->getNameAsString() << " = "; 517 if (D->getQualifier()) 518 D->getQualifier()->print(Out, Policy); 519 Out << D->getAliasedNamespace()->getNameAsString(); 520} 521 522void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) { 523 Out << D->getKindName(); 524 if (D->getIdentifier()) { 525 Out << " "; 526 Out << D->getNameAsString(); 527 } 528 529 if (D->isDefinition()) { 530 // Print the base classes 531 if (D->getNumBases()) { 532 Out << " : "; 533 for(CXXRecordDecl::base_class_iterator Base = D->bases_begin(), 534 BaseEnd = D->bases_end(); 535 Base != BaseEnd; ++Base) { 536 if (Base != D->bases_begin()) 537 Out << ", "; 538 539 if (Base->isVirtual()) 540 Out << "virtual "; 541 542 switch(Base->getAccessSpecifierAsWritten()) { 543 case AS_none: break; 544 case AS_public: Out << "public "; break; 545 case AS_protected: Out << "protected "; break; 546 case AS_private: Out << " private "; break; 547 } 548 549 Out << Base->getType().getAsString(Policy); 550 } 551 } 552 553 // Print the class definition 554 // FIXME: Doesn't print access specifiers, e.g., "public:" 555 Out << " {\n"; 556 VisitDeclContext(D); 557 Indent() << "}"; 558 } 559} 560 561void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 562 const char *l; 563 if (D->getLanguage() == LinkageSpecDecl::lang_c) 564 l = "C"; 565 else { 566 assert(D->getLanguage() == LinkageSpecDecl::lang_cxx && 567 "unknown language in linkage specification"); 568 l = "C++"; 569 } 570 571 Out << "extern \"" << l << "\" "; 572 if (D->hasBraces()) { 573 Out << "{\n"; 574 VisitDeclContext(D); 575 Indent() << "}"; 576 } else 577 Visit(*D->decls_begin()); 578} 579 580void DeclPrinter::VisitTemplateDecl(TemplateDecl *D) { 581 Out << "template <"; 582 583 TemplateParameterList *Params = D->getTemplateParameters(); 584 for (unsigned i = 0, e = Params->size(); i != e; ++i) { 585 if (i != 0) 586 Out << ", "; 587 588 const Decl *Param = Params->getParam(i); 589 if (const TemplateTypeParmDecl *TTP = 590 dyn_cast<TemplateTypeParmDecl>(Param)) { 591 592 QualType ParamType = 593 Context.getTypeDeclType(const_cast<TemplateTypeParmDecl*>(TTP)); 594 595 if (TTP->wasDeclaredWithTypename()) 596 Out << "typename "; 597 else 598 Out << "class "; 599 600 if (TTP->isParameterPack()) 601 Out << "... "; 602 603 Out << ParamType.getAsString(Policy); 604 605 if (TTP->hasDefaultArgument()) { 606 Out << " = "; 607 Out << TTP->getDefaultArgument().getAsString(Policy); 608 }; 609 } else if (const NonTypeTemplateParmDecl *NTTP = 610 dyn_cast<NonTypeTemplateParmDecl>(Param)) { 611 Out << NTTP->getType().getAsString(Policy); 612 613 if (IdentifierInfo *Name = NTTP->getIdentifier()) { 614 Out << ' '; 615 Out << Name->getName(); 616 } 617 618 if (NTTP->hasDefaultArgument()) { 619 Out << " = "; 620 NTTP->getDefaultArgument()->printPretty(Out, Context, 0, Policy, 621 Indentation); 622 } 623 } 624 } 625 626 Out << "> "; 627 628 Visit(D->getTemplatedDecl()); 629} 630 631//---------------------------------------------------------------------------- 632// Objective-C declarations 633//---------------------------------------------------------------------------- 634 635void DeclPrinter::VisitObjCClassDecl(ObjCClassDecl *D) { 636 Out << "@class "; 637 for (ObjCClassDecl::iterator I = D->begin(), E = D->end(); 638 I != E; ++I) { 639 if (I != D->begin()) Out << ", "; 640 Out << (*I)->getNameAsString(); 641 } 642} 643 644void DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) { 645 if (OMD->isInstanceMethod()) 646 Out << "- "; 647 else 648 Out << "+ "; 649 if (!OMD->getResultType().isNull()) 650 Out << '(' << OMD->getResultType().getAsString(Policy) << ")"; 651 652 std::string name = OMD->getSelector().getAsString(); 653 std::string::size_type pos, lastPos = 0; 654 for (ObjCMethodDecl::param_iterator PI = OMD->param_begin(), 655 E = OMD->param_end(); PI != E; ++PI) { 656 // FIXME: selector is missing here! 657 pos = name.find_first_of(":", lastPos); 658 Out << " " << name.substr(lastPos, pos - lastPos); 659 Out << ":(" << (*PI)->getType().getAsString(Policy) << ")" 660 << (*PI)->getNameAsString(); 661 lastPos = pos + 1; 662 } 663 664 if (OMD->param_begin() == OMD->param_end()) 665 Out << " " << name; 666 667 if (OMD->isVariadic()) 668 Out << ", ..."; 669 670 if (OMD->getBody()) { 671 Out << ' '; 672 OMD->getBody()->printPretty(Out, Context, 0, Policy); 673 Out << '\n'; 674 } 675} 676 677void DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) { 678 std::string I = OID->getNameAsString(); 679 ObjCInterfaceDecl *SID = OID->getSuperClass(); 680 681 if (SID) 682 Out << "@implementation " << I << " : " << SID->getNameAsString(); 683 else 684 Out << "@implementation " << I; 685 Out << "\n"; 686 VisitDeclContext(OID, false); 687 Out << "@end"; 688} 689 690void DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) { 691 std::string I = OID->getNameAsString(); 692 ObjCInterfaceDecl *SID = OID->getSuperClass(); 693 694 if (SID) 695 Out << "@interface " << I << " : " << SID->getNameAsString(); 696 else 697 Out << "@interface " << I; 698 699 // Protocols? 700 const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols(); 701 if (!Protocols.empty()) { 702 for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(), 703 E = Protocols.end(); I != E; ++I) 704 Out << (I == Protocols.begin() ? '<' : ',') << (*I)->getNameAsString(); 705 } 706 707 if (!Protocols.empty()) 708 Out << "> "; 709 710 if (OID->ivar_size() > 0) { 711 Out << "{\n"; 712 Indentation += Policy.Indentation; 713 for (ObjCInterfaceDecl::ivar_iterator I = OID->ivar_begin(), 714 E = OID->ivar_end(); I != E; ++I) { 715 Indent() << (*I)->getType().getAsString(Policy) 716 << ' ' << (*I)->getNameAsString() << ";\n"; 717 } 718 Indentation -= Policy.Indentation; 719 Out << "}\n"; 720 } 721 722 VisitDeclContext(OID, false); 723 Out << "@end"; 724 // FIXME: implement the rest... 725} 726 727void DeclPrinter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { 728 Out << "@protocol "; 729 for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(), 730 E = D->protocol_end(); 731 I != E; ++I) { 732 if (I != D->protocol_begin()) Out << ", "; 733 Out << (*I)->getNameAsString(); 734 } 735} 736 737void DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) { 738 Out << "@protocol " << PID->getNameAsString() << '\n'; 739 VisitDeclContext(PID, false); 740 Out << "@end"; 741} 742 743void DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) { 744 Out << "@implementation " 745 << PID->getClassInterface()->getNameAsString() 746 << '(' << PID->getNameAsString() << ")\n"; 747 748 VisitDeclContext(PID, false); 749 Out << "@end"; 750 // FIXME: implement the rest... 751} 752 753void DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) { 754 Out << "@interface " 755 << PID->getClassInterface()->getNameAsString() 756 << '(' << PID->getNameAsString() << ")\n"; 757 VisitDeclContext(PID, false); 758 Out << "@end"; 759 760 // FIXME: implement the rest... 761} 762 763void DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) { 764 Out << "@compatibility_alias " << AID->getNameAsString() 765 << ' ' << AID->getClassInterface()->getNameAsString() << ";\n"; 766} 767 768/// PrintObjCPropertyDecl - print a property declaration. 769/// 770void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) { 771 if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required) 772 Out << "@required\n"; 773 else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional) 774 Out << "@optional\n"; 775 776 Out << "@property"; 777 if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) { 778 bool first = true; 779 Out << " ("; 780 if (PDecl->getPropertyAttributes() & 781 ObjCPropertyDecl::OBJC_PR_readonly) { 782 Out << (first ? ' ' : ',') << "readonly"; 783 first = false; 784 } 785 786 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 787 Out << (first ? ' ' : ',') << "getter = " 788 << PDecl->getGetterName().getAsString(); 789 first = false; 790 } 791 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 792 Out << (first ? ' ' : ',') << "setter = " 793 << PDecl->getSetterName().getAsString(); 794 first = false; 795 } 796 797 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) { 798 Out << (first ? ' ' : ',') << "assign"; 799 first = false; 800 } 801 802 if (PDecl->getPropertyAttributes() & 803 ObjCPropertyDecl::OBJC_PR_readwrite) { 804 Out << (first ? ' ' : ',') << "readwrite"; 805 first = false; 806 } 807 808 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) { 809 Out << (first ? ' ' : ',') << "retain"; 810 first = false; 811 } 812 813 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) { 814 Out << (first ? ' ' : ',') << "copy"; 815 first = false; 816 } 817 818 if (PDecl->getPropertyAttributes() & 819 ObjCPropertyDecl::OBJC_PR_nonatomic) { 820 Out << (first ? ' ' : ',') << "nonatomic"; 821 first = false; 822 } 823 Out << " )"; 824 } 825 Out << ' ' << PDecl->getType().getAsString(Policy) 826 << ' ' << PDecl->getNameAsString(); 827} 828 829void DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) { 830 if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) 831 Out << "@synthesize "; 832 else 833 Out << "@dynamic "; 834 Out << PID->getPropertyDecl()->getNameAsString(); 835 if (PID->getPropertyIvarDecl()) 836 Out << "=" << PID->getPropertyIvarDecl()->getNameAsString(); 837} 838