1 //===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===// 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 serialization for Declarations. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "clang/Serialization/ASTWriter.h" 15 #include "clang/Serialization/ASTReader.h" 16 #include "ASTCommon.h" 17 #include "clang/AST/DeclVisitor.h" 18 #include "clang/AST/DeclCXX.h" 19 #include "clang/AST/DeclTemplate.h" 20 #include "clang/AST/Expr.h" 21 #include "clang/AST/DeclContextInternals.h" 22 #include "clang/Basic/SourceManager.h" 23 #include "llvm/ADT/Twine.h" 24 #include "llvm/Bitcode/BitstreamWriter.h" 25 #include "llvm/Support/ErrorHandling.h" 26 using namespace clang; 27 using namespace serialization; 28 29 //===----------------------------------------------------------------------===// 30 // Declaration serialization 31 //===----------------------------------------------------------------------===// 32 33 namespace clang { 34 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> { 35 36 ASTWriter &Writer; 37 ASTContext &Context; 38 typedef ASTWriter::RecordData RecordData; 39 RecordData &Record; 40 41 public: 42 serialization::DeclCode Code; 43 unsigned AbbrevToUse; 44 45 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, RecordData &Record) 46 : Writer(Writer), Context(Context), Record(Record) { 47 } 48 49 void Visit(Decl *D); 50 51 void VisitDecl(Decl *D); 52 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 53 void VisitNamedDecl(NamedDecl *D); 54 void VisitLabelDecl(LabelDecl *LD); 55 void VisitNamespaceDecl(NamespaceDecl *D); 56 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 57 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 58 void VisitTypeDecl(TypeDecl *D); 59 void VisitTypedefNameDecl(TypedefNameDecl *D); 60 void VisitTypedefDecl(TypedefDecl *D); 61 void VisitTypeAliasDecl(TypeAliasDecl *D); 62 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 63 void VisitTagDecl(TagDecl *D); 64 void VisitEnumDecl(EnumDecl *D); 65 void VisitRecordDecl(RecordDecl *D); 66 void VisitCXXRecordDecl(CXXRecordDecl *D); 67 void VisitClassTemplateSpecializationDecl( 68 ClassTemplateSpecializationDecl *D); 69 void VisitClassTemplatePartialSpecializationDecl( 70 ClassTemplatePartialSpecializationDecl *D); 71 void VisitClassScopeFunctionSpecializationDecl( 72 ClassScopeFunctionSpecializationDecl *D); 73 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 74 void VisitValueDecl(ValueDecl *D); 75 void VisitEnumConstantDecl(EnumConstantDecl *D); 76 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 77 void VisitDeclaratorDecl(DeclaratorDecl *D); 78 void VisitFunctionDecl(FunctionDecl *D); 79 void VisitCXXMethodDecl(CXXMethodDecl *D); 80 void VisitCXXConstructorDecl(CXXConstructorDecl *D); 81 void VisitCXXDestructorDecl(CXXDestructorDecl *D); 82 void VisitCXXConversionDecl(CXXConversionDecl *D); 83 void VisitFieldDecl(FieldDecl *D); 84 void VisitIndirectFieldDecl(IndirectFieldDecl *D); 85 void VisitVarDecl(VarDecl *D); 86 void VisitImplicitParamDecl(ImplicitParamDecl *D); 87 void VisitParmVarDecl(ParmVarDecl *D); 88 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 89 void VisitTemplateDecl(TemplateDecl *D); 90 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); 91 void VisitClassTemplateDecl(ClassTemplateDecl *D); 92 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 93 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 94 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); 95 void VisitUsingDecl(UsingDecl *D); 96 void VisitUsingShadowDecl(UsingShadowDecl *D); 97 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 98 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 99 void VisitImportDecl(ImportDecl *D); 100 void VisitAccessSpecDecl(AccessSpecDecl *D); 101 void VisitFriendDecl(FriendDecl *D); 102 void VisitFriendTemplateDecl(FriendTemplateDecl *D); 103 void VisitStaticAssertDecl(StaticAssertDecl *D); 104 void VisitBlockDecl(BlockDecl *D); 105 106 void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 107 uint64_t VisibleOffset); 108 template <typename T> void VisitRedeclarable(Redeclarable<T> *D); 109 110 111 // FIXME: Put in the same order is DeclNodes.td? 112 void VisitObjCMethodDecl(ObjCMethodDecl *D); 113 void VisitObjCContainerDecl(ObjCContainerDecl *D); 114 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 115 void VisitObjCIvarDecl(ObjCIvarDecl *D); 116 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 117 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); 118 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 119 void VisitObjCImplDecl(ObjCImplDecl *D); 120 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 121 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 122 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 123 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 124 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 125 }; 126 } 127 128 void ASTDeclWriter::Visit(Decl *D) { 129 DeclVisitor<ASTDeclWriter>::Visit(D); 130 131 // Source locations require array (variable-length) abbreviations. The 132 // abbreviation infrastructure requires that arrays are encoded last, so 133 // we handle it here in the case of those classes derived from DeclaratorDecl 134 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){ 135 Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record); 136 } 137 138 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs 139 // have been written. We want it last because we will not read it back when 140 // retrieving it from the AST, we'll just lazily set the offset. 141 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 142 Record.push_back(FD->doesThisDeclarationHaveABody()); 143 if (FD->doesThisDeclarationHaveABody()) 144 Writer.AddStmt(FD->getBody()); 145 } 146 } 147 148 void ASTDeclWriter::VisitDecl(Decl *D) { 149 Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record); 150 Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record); 151 Record.push_back(D->isInvalidDecl()); 152 Record.push_back(D->hasAttrs()); 153 if (D->hasAttrs()) 154 Writer.WriteAttributes(ArrayRef<const Attr*>(D->getAttrs().begin(), 155 D->getAttrs().size()), Record); 156 Record.push_back(D->isImplicit()); 157 Record.push_back(D->isUsed(false)); 158 Record.push_back(D->isReferenced()); 159 Record.push_back(D->isTopLevelDeclInObjCContainer()); 160 Record.push_back(D->getAccess()); 161 Record.push_back(D->isModulePrivate()); 162 Record.push_back(Writer.inferSubmoduleIDFromLocation(D->getLocation())); 163 } 164 165 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 166 llvm_unreachable("Translation units aren't directly serialized"); 167 } 168 169 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) { 170 VisitDecl(D); 171 Writer.AddDeclarationName(D->getDeclName(), Record); 172 } 173 174 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) { 175 VisitNamedDecl(D); 176 Writer.AddSourceLocation(D->getLocStart(), Record); 177 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 178 } 179 180 void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) { 181 VisitRedeclarable(D); 182 VisitTypeDecl(D); 183 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 184 } 185 186 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) { 187 VisitTypedefNameDecl(D); 188 if (!D->hasAttrs() && 189 !D->isImplicit() && 190 !D->isUsed(false) && 191 D->getFirstDeclaration() == D->getMostRecentDecl() && 192 !D->isInvalidDecl() && 193 !D->isReferenced() && 194 !D->isTopLevelDeclInObjCContainer() && 195 D->getAccess() == AS_none && 196 !D->isModulePrivate() && 197 D->getDeclName().getNameKind() == DeclarationName::Identifier) 198 AbbrevToUse = Writer.getDeclTypedefAbbrev(); 199 200 Code = serialization::DECL_TYPEDEF; 201 } 202 203 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) { 204 VisitTypedefNameDecl(D); 205 Code = serialization::DECL_TYPEALIAS; 206 } 207 208 void ASTDeclWriter::VisitTagDecl(TagDecl *D) { 209 VisitRedeclarable(D); 210 VisitTypeDecl(D); 211 Record.push_back(D->getIdentifierNamespace()); 212 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding 213 Record.push_back(D->isCompleteDefinition()); 214 Record.push_back(D->isEmbeddedInDeclarator()); 215 Record.push_back(D->isFreeStanding()); 216 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 217 Record.push_back(D->hasExtInfo()); 218 if (D->hasExtInfo()) 219 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 220 else 221 Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record); 222 } 223 224 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) { 225 VisitTagDecl(D); 226 Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record); 227 if (!D->getIntegerTypeSourceInfo()) 228 Writer.AddTypeRef(D->getIntegerType(), Record); 229 Writer.AddTypeRef(D->getPromotionType(), Record); 230 Record.push_back(D->getNumPositiveBits()); 231 Record.push_back(D->getNumNegativeBits()); 232 Record.push_back(D->isScoped()); 233 Record.push_back(D->isScopedUsingClassTag()); 234 Record.push_back(D->isFixed()); 235 if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) { 236 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record); 237 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 238 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record); 239 } else { 240 Writer.AddDeclRef(0, Record); 241 } 242 243 if (!D->hasAttrs() && 244 !D->isImplicit() && 245 !D->isUsed(false) && 246 !D->hasExtInfo() && 247 D->getFirstDeclaration() == D->getMostRecentDecl() && 248 !D->isInvalidDecl() && 249 !D->isReferenced() && 250 !D->isTopLevelDeclInObjCContainer() && 251 D->getAccess() == AS_none && 252 !D->isModulePrivate() && 253 !CXXRecordDecl::classofKind(D->getKind()) && 254 !D->getIntegerTypeSourceInfo() && 255 D->getDeclName().getNameKind() == DeclarationName::Identifier) 256 AbbrevToUse = Writer.getDeclEnumAbbrev(); 257 258 Code = serialization::DECL_ENUM; 259 } 260 261 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) { 262 VisitTagDecl(D); 263 Record.push_back(D->hasFlexibleArrayMember()); 264 Record.push_back(D->isAnonymousStructOrUnion()); 265 Record.push_back(D->hasObjectMember()); 266 267 if (!D->hasAttrs() && 268 !D->isImplicit() && 269 !D->isUsed(false) && 270 !D->hasExtInfo() && 271 D->getFirstDeclaration() == D->getMostRecentDecl() && 272 !D->isInvalidDecl() && 273 !D->isReferenced() && 274 !D->isTopLevelDeclInObjCContainer() && 275 D->getAccess() == AS_none && 276 !D->isModulePrivate() && 277 !CXXRecordDecl::classofKind(D->getKind()) && 278 D->getDeclName().getNameKind() == DeclarationName::Identifier) 279 AbbrevToUse = Writer.getDeclRecordAbbrev(); 280 281 Code = serialization::DECL_RECORD; 282 } 283 284 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) { 285 VisitNamedDecl(D); 286 Writer.AddTypeRef(D->getType(), Record); 287 } 288 289 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { 290 VisitValueDecl(D); 291 Record.push_back(D->getInitExpr()? 1 : 0); 292 if (D->getInitExpr()) 293 Writer.AddStmt(D->getInitExpr()); 294 Writer.AddAPSInt(D->getInitVal(), Record); 295 296 Code = serialization::DECL_ENUM_CONSTANT; 297 } 298 299 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { 300 VisitValueDecl(D); 301 Writer.AddSourceLocation(D->getInnerLocStart(), Record); 302 Record.push_back(D->hasExtInfo()); 303 if (D->hasExtInfo()) 304 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 305 } 306 307 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) { 308 VisitRedeclarable(D); 309 VisitDeclaratorDecl(D); 310 311 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 312 Record.push_back(D->getIdentifierNamespace()); 313 314 // FunctionDecl's body is handled last at ASTWriterDecl::Visit, 315 // after everything else is written. 316 317 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 318 Record.push_back(D->getStorageClassAsWritten()); 319 Record.push_back(D->IsInline); 320 Record.push_back(D->isInlineSpecified()); 321 Record.push_back(D->isVirtualAsWritten()); 322 Record.push_back(D->isPure()); 323 Record.push_back(D->hasInheritedPrototype()); 324 Record.push_back(D->hasWrittenPrototype()); 325 Record.push_back(D->isDeletedAsWritten()); 326 Record.push_back(D->isTrivial()); 327 Record.push_back(D->isDefaulted()); 328 Record.push_back(D->isExplicitlyDefaulted()); 329 Record.push_back(D->hasImplicitReturnZero()); 330 Record.push_back(D->isConstexpr()); 331 Writer.AddSourceLocation(D->getLocEnd(), Record); 332 333 Record.push_back(D->getTemplatedKind()); 334 switch (D->getTemplatedKind()) { 335 case FunctionDecl::TK_NonTemplate: 336 break; 337 case FunctionDecl::TK_FunctionTemplate: 338 Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record); 339 break; 340 case FunctionDecl::TK_MemberSpecialization: { 341 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); 342 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record); 343 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 344 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record); 345 break; 346 } 347 case FunctionDecl::TK_FunctionTemplateSpecialization: { 348 FunctionTemplateSpecializationInfo * 349 FTSInfo = D->getTemplateSpecializationInfo(); 350 Writer.AddDeclRef(FTSInfo->getTemplate(), Record); 351 Record.push_back(FTSInfo->getTemplateSpecializationKind()); 352 353 // Template arguments. 354 Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record); 355 356 // Template args as written. 357 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0); 358 if (FTSInfo->TemplateArgumentsAsWritten) { 359 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs); 360 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs; 361 i!=e; ++i) 362 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i], 363 Record); 364 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc, 365 Record); 366 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc, 367 Record); 368 } 369 370 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record); 371 372 if (D->isCanonicalDecl()) { 373 // Write the template that contains the specializations set. We will 374 // add a FunctionTemplateSpecializationInfo to it when reading. 375 Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record); 376 } 377 break; 378 } 379 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { 380 DependentFunctionTemplateSpecializationInfo * 381 DFTSInfo = D->getDependentSpecializationInfo(); 382 383 // Templates. 384 Record.push_back(DFTSInfo->getNumTemplates()); 385 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) 386 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record); 387 388 // Templates args. 389 Record.push_back(DFTSInfo->getNumTemplateArgs()); 390 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) 391 Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record); 392 Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record); 393 Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record); 394 break; 395 } 396 } 397 398 Record.push_back(D->param_size()); 399 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 400 P != PEnd; ++P) 401 Writer.AddDeclRef(*P, Record); 402 Code = serialization::DECL_FUNCTION; 403 } 404 405 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { 406 VisitNamedDecl(D); 407 // FIXME: convert to LazyStmtPtr? 408 // Unlike C/C++, method bodies will never be in header files. 409 bool HasBodyStuff = D->getBody() != 0 || 410 D->getSelfDecl() != 0 || D->getCmdDecl() != 0; 411 Record.push_back(HasBodyStuff); 412 if (HasBodyStuff) { 413 Writer.AddStmt(D->getBody()); 414 Writer.AddDeclRef(D->getSelfDecl(), Record); 415 Writer.AddDeclRef(D->getCmdDecl(), Record); 416 } 417 Record.push_back(D->isInstanceMethod()); 418 Record.push_back(D->isVariadic()); 419 Record.push_back(D->isSynthesized()); 420 Record.push_back(D->isDefined()); 421 Record.push_back(D->IsOverriding); 422 423 Record.push_back(D->IsRedeclaration); 424 Record.push_back(D->HasRedeclaration); 425 if (D->HasRedeclaration) { 426 assert(Context.getObjCMethodRedeclaration(D)); 427 Writer.AddDeclRef(Context.getObjCMethodRedeclaration(D), Record); 428 } 429 430 // FIXME: stable encoding for @required/@optional 431 Record.push_back(D->getImplementationControl()); 432 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway 433 Record.push_back(D->getObjCDeclQualifier()); 434 Record.push_back(D->hasRelatedResultType()); 435 Writer.AddTypeRef(D->getResultType(), Record); 436 Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record); 437 Writer.AddSourceLocation(D->getLocEnd(), Record); 438 Record.push_back(D->param_size()); 439 for (ObjCMethodDecl::param_iterator P = D->param_begin(), 440 PEnd = D->param_end(); P != PEnd; ++P) 441 Writer.AddDeclRef(*P, Record); 442 443 Record.push_back(D->SelLocsKind); 444 unsigned NumStoredSelLocs = D->getNumStoredSelLocs(); 445 SourceLocation *SelLocs = D->getStoredSelLocs(); 446 Record.push_back(NumStoredSelLocs); 447 for (unsigned i = 0; i != NumStoredSelLocs; ++i) 448 Writer.AddSourceLocation(SelLocs[i], Record); 449 450 Code = serialization::DECL_OBJC_METHOD; 451 } 452 453 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { 454 VisitNamedDecl(D); 455 Writer.AddSourceLocation(D->getAtStartLoc(), Record); 456 Writer.AddSourceRange(D->getAtEndRange(), Record); 457 // Abstract class (no need to define a stable serialization::DECL code). 458 } 459 460 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 461 VisitRedeclarable(D); 462 VisitObjCContainerDecl(D); 463 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 464 465 Record.push_back(D->isThisDeclarationADefinition()); 466 if (D->isThisDeclarationADefinition()) { 467 // Write the DefinitionData 468 ObjCInterfaceDecl::DefinitionData &Data = D->data(); 469 470 Writer.AddDeclRef(D->getSuperClass(), Record); 471 Writer.AddSourceLocation(D->getSuperClassLoc(), Record); 472 Writer.AddSourceLocation(D->getEndOfDefinitionLoc(), Record); 473 474 // Write out the protocols that are directly referenced by the @interface. 475 Record.push_back(Data.ReferencedProtocols.size()); 476 for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(), 477 PEnd = D->protocol_end(); 478 P != PEnd; ++P) 479 Writer.AddDeclRef(*P, Record); 480 for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 481 PLEnd = D->protocol_loc_end(); 482 PL != PLEnd; ++PL) 483 Writer.AddSourceLocation(*PL, Record); 484 485 // Write out the protocols that are transitively referenced. 486 Record.push_back(Data.AllReferencedProtocols.size()); 487 for (ObjCList<ObjCProtocolDecl>::iterator 488 P = Data.AllReferencedProtocols.begin(), 489 PEnd = Data.AllReferencedProtocols.end(); 490 P != PEnd; ++P) 491 Writer.AddDeclRef(*P, Record); 492 493 if (ObjCCategoryDecl *Cat = D->getCategoryList()) { 494 // Ensure that we write out the set of categories for this class. 495 Writer.ObjCClassesWithCategories.insert(D); 496 497 // Make sure that the categories get serialized. 498 for (; Cat; Cat = Cat->getNextClassCategory()) 499 (void)Writer.GetDeclRef(Cat); 500 } 501 } 502 503 Code = serialization::DECL_OBJC_INTERFACE; 504 } 505 506 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { 507 VisitFieldDecl(D); 508 // FIXME: stable encoding for @public/@private/@protected/@package 509 Record.push_back(D->getAccessControl()); 510 Record.push_back(D->getSynthesize()); 511 512 if (!D->hasAttrs() && 513 !D->isImplicit() && 514 !D->isUsed(false) && 515 !D->isInvalidDecl() && 516 !D->isReferenced() && 517 !D->isModulePrivate() && 518 !D->getBitWidth() && 519 !D->hasExtInfo() && 520 D->getDeclName()) 521 AbbrevToUse = Writer.getDeclObjCIvarAbbrev(); 522 523 Code = serialization::DECL_OBJC_IVAR; 524 } 525 526 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { 527 VisitRedeclarable(D); 528 VisitObjCContainerDecl(D); 529 530 Record.push_back(D->isThisDeclarationADefinition()); 531 if (D->isThisDeclarationADefinition()) { 532 Record.push_back(D->protocol_size()); 533 for (ObjCProtocolDecl::protocol_iterator 534 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 535 Writer.AddDeclRef(*I, Record); 536 for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 537 PLEnd = D->protocol_loc_end(); 538 PL != PLEnd; ++PL) 539 Writer.AddSourceLocation(*PL, Record); 540 } 541 542 Code = serialization::DECL_OBJC_PROTOCOL; 543 } 544 545 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { 546 VisitFieldDecl(D); 547 Code = serialization::DECL_OBJC_AT_DEFS_FIELD; 548 } 549 550 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { 551 VisitObjCContainerDecl(D); 552 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); 553 Writer.AddSourceLocation(D->getIvarLBraceLoc(), Record); 554 Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record); 555 Writer.AddDeclRef(D->getClassInterface(), Record); 556 Record.push_back(D->protocol_size()); 557 for (ObjCCategoryDecl::protocol_iterator 558 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 559 Writer.AddDeclRef(*I, Record); 560 for (ObjCCategoryDecl::protocol_loc_iterator 561 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); 562 PL != PLEnd; ++PL) 563 Writer.AddSourceLocation(*PL, Record); 564 Code = serialization::DECL_OBJC_CATEGORY; 565 } 566 567 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { 568 VisitNamedDecl(D); 569 Writer.AddDeclRef(D->getClassInterface(), Record); 570 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS; 571 } 572 573 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { 574 VisitNamedDecl(D); 575 Writer.AddSourceLocation(D->getAtLoc(), Record); 576 Writer.AddSourceLocation(D->getLParenLoc(), Record); 577 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 578 // FIXME: stable encoding 579 Record.push_back((unsigned)D->getPropertyAttributes()); 580 Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); 581 // FIXME: stable encoding 582 Record.push_back((unsigned)D->getPropertyImplementation()); 583 Writer.AddDeclarationName(D->getGetterName(), Record); 584 Writer.AddDeclarationName(D->getSetterName(), Record); 585 Writer.AddDeclRef(D->getGetterMethodDecl(), Record); 586 Writer.AddDeclRef(D->getSetterMethodDecl(), Record); 587 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 588 Code = serialization::DECL_OBJC_PROPERTY; 589 } 590 591 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { 592 VisitObjCContainerDecl(D); 593 Writer.AddDeclRef(D->getClassInterface(), Record); 594 // Abstract class (no need to define a stable serialization::DECL code). 595 } 596 597 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 598 VisitObjCImplDecl(D); 599 Writer.AddIdentifierRef(D->getIdentifier(), Record); 600 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); 601 Code = serialization::DECL_OBJC_CATEGORY_IMPL; 602 } 603 604 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 605 VisitObjCImplDecl(D); 606 Writer.AddDeclRef(D->getSuperClass(), Record); 607 Writer.AddSourceLocation(D->getIvarLBraceLoc(), Record); 608 Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record); 609 Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers, 610 Record); 611 Code = serialization::DECL_OBJC_IMPLEMENTATION; 612 } 613 614 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { 615 VisitDecl(D); 616 Writer.AddSourceLocation(D->getLocStart(), Record); 617 Writer.AddDeclRef(D->getPropertyDecl(), Record); 618 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 619 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record); 620 Writer.AddStmt(D->getGetterCXXConstructor()); 621 Writer.AddStmt(D->getSetterCXXAssignment()); 622 Code = serialization::DECL_OBJC_PROPERTY_IMPL; 623 } 624 625 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) { 626 VisitDeclaratorDecl(D); 627 Record.push_back(D->isMutable()); 628 if (D->InitializerOrBitWidth.getInt() != ICIS_NoInit || 629 D->InitializerOrBitWidth.getPointer()) { 630 Record.push_back(D->InitializerOrBitWidth.getInt() + 1); 631 Writer.AddStmt(D->InitializerOrBitWidth.getPointer()); 632 } else { 633 Record.push_back(0); 634 } 635 if (!D->getDeclName()) 636 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record); 637 638 if (!D->hasAttrs() && 639 !D->isImplicit() && 640 !D->isUsed(false) && 641 !D->isInvalidDecl() && 642 !D->isReferenced() && 643 !D->isTopLevelDeclInObjCContainer() && 644 !D->isModulePrivate() && 645 !D->getBitWidth() && 646 !D->hasInClassInitializer() && 647 !D->hasExtInfo() && 648 !ObjCIvarDecl::classofKind(D->getKind()) && 649 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) && 650 D->getDeclName()) 651 AbbrevToUse = Writer.getDeclFieldAbbrev(); 652 653 Code = serialization::DECL_FIELD; 654 } 655 656 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 657 VisitValueDecl(D); 658 Record.push_back(D->getChainingSize()); 659 660 for (IndirectFieldDecl::chain_iterator 661 P = D->chain_begin(), 662 PEnd = D->chain_end(); P != PEnd; ++P) 663 Writer.AddDeclRef(*P, Record); 664 Code = serialization::DECL_INDIRECTFIELD; 665 } 666 667 void ASTDeclWriter::VisitVarDecl(VarDecl *D) { 668 VisitRedeclarable(D); 669 VisitDeclaratorDecl(D); 670 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 671 Record.push_back(D->getStorageClassAsWritten()); 672 Record.push_back(D->isThreadSpecified()); 673 Record.push_back(D->getInitStyle()); 674 Record.push_back(D->isExceptionVariable()); 675 Record.push_back(D->isNRVOVariable()); 676 Record.push_back(D->isCXXForRangeDecl()); 677 Record.push_back(D->isARCPseudoStrong()); 678 if (D->getInit()) { 679 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2)); 680 Writer.AddStmt(D->getInit()); 681 } else { 682 Record.push_back(0); 683 } 684 685 MemberSpecializationInfo *SpecInfo 686 = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0; 687 Record.push_back(SpecInfo != 0); 688 if (SpecInfo) { 689 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record); 690 Record.push_back(SpecInfo->getTemplateSpecializationKind()); 691 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record); 692 } 693 694 if (!D->hasAttrs() && 695 !D->isImplicit() && 696 !D->isUsed(false) && 697 !D->isInvalidDecl() && 698 !D->isReferenced() && 699 !D->isTopLevelDeclInObjCContainer() && 700 D->getAccess() == AS_none && 701 !D->isModulePrivate() && 702 D->getDeclName().getNameKind() == DeclarationName::Identifier && 703 !D->hasExtInfo() && 704 D->getFirstDeclaration() == D->getMostRecentDecl() && 705 D->getInitStyle() == VarDecl::CInit && 706 D->getInit() == 0 && 707 !isa<ParmVarDecl>(D) && 708 !SpecInfo) 709 AbbrevToUse = Writer.getDeclVarAbbrev(); 710 711 Code = serialization::DECL_VAR; 712 } 713 714 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { 715 VisitVarDecl(D); 716 Code = serialization::DECL_IMPLICIT_PARAM; 717 } 718 719 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { 720 VisitVarDecl(D); 721 Record.push_back(D->isObjCMethodParameter()); 722 Record.push_back(D->getFunctionScopeDepth()); 723 Record.push_back(D->getFunctionScopeIndex()); 724 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding 725 Record.push_back(D->isKNRPromoted()); 726 Record.push_back(D->hasInheritedDefaultArg()); 727 Record.push_back(D->hasUninstantiatedDefaultArg()); 728 if (D->hasUninstantiatedDefaultArg()) 729 Writer.AddStmt(D->getUninstantiatedDefaultArg()); 730 Code = serialization::DECL_PARM_VAR; 731 732 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl 733 734 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here 735 // we dynamically check for the properties that we optimize for, but don't 736 // know are true of all PARM_VAR_DECLs. 737 if (!D->hasAttrs() && 738 !D->hasExtInfo() && 739 !D->isImplicit() && 740 !D->isUsed(false) && 741 !D->isInvalidDecl() && 742 !D->isReferenced() && 743 D->getAccess() == AS_none && 744 !D->isModulePrivate() && 745 D->getStorageClass() == 0 && 746 D->getInitStyle() == VarDecl::CInit && // Can params have anything else? 747 D->getFunctionScopeDepth() == 0 && 748 D->getObjCDeclQualifier() == 0 && 749 !D->isKNRPromoted() && 750 !D->hasInheritedDefaultArg() && 751 D->getInit() == 0 && 752 !D->hasUninstantiatedDefaultArg()) // No default expr. 753 AbbrevToUse = Writer.getDeclParmVarAbbrev(); 754 755 // Check things we know are true of *every* PARM_VAR_DECL, which is more than 756 // just us assuming it. 757 assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread"); 758 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); 759 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); 760 assert(D->getPreviousDecl() == 0 && "PARM_VAR_DECL can't be redecl"); 761 assert(!D->isStaticDataMember() && 762 "PARM_VAR_DECL can't be static data member"); 763 } 764 765 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 766 VisitDecl(D); 767 Writer.AddStmt(D->getAsmString()); 768 Writer.AddSourceLocation(D->getRParenLoc(), Record); 769 Code = serialization::DECL_FILE_SCOPE_ASM; 770 } 771 772 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { 773 VisitDecl(D); 774 Writer.AddStmt(D->getBody()); 775 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record); 776 Record.push_back(D->param_size()); 777 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 778 P != PEnd; ++P) 779 Writer.AddDeclRef(*P, Record); 780 Record.push_back(D->isVariadic()); 781 Record.push_back(D->blockMissingReturnType()); 782 Record.push_back(D->isConversionFromLambda()); 783 Record.push_back(D->capturesCXXThis()); 784 Record.push_back(D->getNumCaptures()); 785 for (BlockDecl::capture_iterator 786 i = D->capture_begin(), e = D->capture_end(); i != e; ++i) { 787 const BlockDecl::Capture &capture = *i; 788 Writer.AddDeclRef(capture.getVariable(), Record); 789 790 unsigned flags = 0; 791 if (capture.isByRef()) flags |= 1; 792 if (capture.isNested()) flags |= 2; 793 if (capture.hasCopyExpr()) flags |= 4; 794 Record.push_back(flags); 795 796 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr()); 797 } 798 799 Code = serialization::DECL_BLOCK; 800 } 801 802 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 803 VisitDecl(D); 804 Record.push_back(D->getLanguage()); 805 Writer.AddSourceLocation(D->getExternLoc(), Record); 806 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 807 Code = serialization::DECL_LINKAGE_SPEC; 808 } 809 810 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) { 811 VisitNamedDecl(D); 812 Writer.AddSourceLocation(D->getLocStart(), Record); 813 Code = serialization::DECL_LABEL; 814 } 815 816 817 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { 818 VisitRedeclarable(D); 819 VisitNamedDecl(D); 820 Record.push_back(D->isInline()); 821 Writer.AddSourceLocation(D->getLocStart(), Record); 822 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 823 824 if (D->isOriginalNamespace()) 825 Writer.AddDeclRef(D->getAnonymousNamespace(), Record); 826 Code = serialization::DECL_NAMESPACE; 827 828 if (Writer.hasChain() && !D->isOriginalNamespace() && 829 D->getOriginalNamespace()->isFromASTFile()) { 830 NamespaceDecl *NS = D->getOriginalNamespace(); 831 Writer.AddUpdatedDeclContext(NS); 832 833 // Make sure all visible decls are written. They will be recorded later. 834 if (StoredDeclsMap *Map = NS->buildLookup()) { 835 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end(); 836 D != DEnd; ++D) { 837 DeclContext::lookup_result Result = D->second.getLookupResult(); 838 while (Result.first != Result.second) { 839 Writer.GetDeclRef(*Result.first); 840 ++Result.first; 841 } 842 } 843 } 844 } 845 846 if (Writer.hasChain() && D->isAnonymousNamespace() && 847 D == D->getMostRecentDecl()) { 848 // This is a most recent reopening of the anonymous namespace. If its parent 849 // is in a previous PCH (or is the TU), mark that parent for update, because 850 // the original namespace always points to the latest re-opening of its 851 // anonymous namespace. 852 Decl *Parent = cast<Decl>( 853 D->getParent()->getRedeclContext()->getPrimaryContext()); 854 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) { 855 ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent]; 856 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE); 857 Writer.AddDeclRef(D, Record); 858 } 859 } 860 } 861 862 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 863 VisitNamedDecl(D); 864 Writer.AddSourceLocation(D->getNamespaceLoc(), Record); 865 Writer.AddSourceLocation(D->getTargetNameLoc(), Record); 866 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 867 Writer.AddDeclRef(D->getNamespace(), Record); 868 Code = serialization::DECL_NAMESPACE_ALIAS; 869 } 870 871 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) { 872 VisitNamedDecl(D); 873 Writer.AddSourceLocation(D->getUsingLocation(), Record); 874 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 875 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 876 Writer.AddDeclRef(D->FirstUsingShadow.getPointer(), Record); 877 Record.push_back(D->isTypeName()); 878 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record); 879 Code = serialization::DECL_USING; 880 } 881 882 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { 883 VisitNamedDecl(D); 884 Writer.AddDeclRef(D->getTargetDecl(), Record); 885 Writer.AddDeclRef(D->UsingOrNextShadow, Record); 886 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record); 887 Code = serialization::DECL_USING_SHADOW; 888 } 889 890 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 891 VisitNamedDecl(D); 892 Writer.AddSourceLocation(D->getUsingLoc(), Record); 893 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record); 894 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 895 Writer.AddDeclRef(D->getNominatedNamespace(), Record); 896 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record); 897 Code = serialization::DECL_USING_DIRECTIVE; 898 } 899 900 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 901 VisitValueDecl(D); 902 Writer.AddSourceLocation(D->getUsingLoc(), Record); 903 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 904 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 905 Code = serialization::DECL_UNRESOLVED_USING_VALUE; 906 } 907 908 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl( 909 UnresolvedUsingTypenameDecl *D) { 910 VisitTypeDecl(D); 911 Writer.AddSourceLocation(D->getTypenameLoc(), Record); 912 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 913 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME; 914 } 915 916 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { 917 VisitRecordDecl(D); 918 Record.push_back(D->isThisDeclarationADefinition()); 919 if (D->isThisDeclarationADefinition()) 920 Writer.AddCXXDefinitionData(D, Record); 921 922 enum { 923 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization 924 }; 925 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { 926 Record.push_back(CXXRecTemplate); 927 Writer.AddDeclRef(TemplD, Record); 928 } else if (MemberSpecializationInfo *MSInfo 929 = D->getMemberSpecializationInfo()) { 930 Record.push_back(CXXRecMemberSpecialization); 931 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record); 932 Record.push_back(MSInfo->getTemplateSpecializationKind()); 933 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record); 934 } else { 935 Record.push_back(CXXRecNotTemplate); 936 } 937 938 // Store the key function to avoid deserializing every method so we can 939 // compute it. 940 if (D->IsCompleteDefinition) 941 Writer.AddDeclRef(Context.getKeyFunction(D), Record); 942 943 Code = serialization::DECL_CXX_RECORD; 944 } 945 946 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { 947 VisitFunctionDecl(D); 948 Record.push_back(D->size_overridden_methods()); 949 for (CXXMethodDecl::method_iterator 950 I = D->begin_overridden_methods(), E = D->end_overridden_methods(); 951 I != E; ++I) 952 Writer.AddDeclRef(*I, Record); 953 Code = serialization::DECL_CXX_METHOD; 954 } 955 956 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 957 VisitCXXMethodDecl(D); 958 959 Record.push_back(D->IsExplicitSpecified); 960 Record.push_back(D->ImplicitlyDefined); 961 Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers, 962 Record); 963 964 Code = serialization::DECL_CXX_CONSTRUCTOR; 965 } 966 967 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 968 VisitCXXMethodDecl(D); 969 970 Record.push_back(D->ImplicitlyDefined); 971 Writer.AddDeclRef(D->OperatorDelete, Record); 972 973 Code = serialization::DECL_CXX_DESTRUCTOR; 974 } 975 976 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { 977 VisitCXXMethodDecl(D); 978 Record.push_back(D->IsExplicitSpecified); 979 Code = serialization::DECL_CXX_CONVERSION; 980 } 981 982 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) { 983 VisitDecl(D); 984 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs(); 985 Record.push_back(!IdentifierLocs.empty()); 986 if (IdentifierLocs.empty()) { 987 Writer.AddSourceLocation(D->getLocEnd(), Record); 988 Record.push_back(1); 989 } else { 990 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I) 991 Writer.AddSourceLocation(IdentifierLocs[I], Record); 992 Record.push_back(IdentifierLocs.size()); 993 } 994 // Note: the number of source locations must always be the last element in 995 // the record. 996 Code = serialization::DECL_IMPORT; 997 } 998 999 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { 1000 VisitDecl(D); 1001 Writer.AddSourceLocation(D->getColonLoc(), Record); 1002 Code = serialization::DECL_ACCESS_SPEC; 1003 } 1004 1005 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) { 1006 VisitDecl(D); 1007 Record.push_back(D->Friend.is<TypeSourceInfo*>()); 1008 if (D->Friend.is<TypeSourceInfo*>()) 1009 Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record); 1010 else 1011 Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record); 1012 Writer.AddDeclRef(D->getNextFriend(), Record); 1013 Record.push_back(D->UnsupportedFriend); 1014 Writer.AddSourceLocation(D->FriendLoc, Record); 1015 Code = serialization::DECL_FRIEND; 1016 } 1017 1018 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { 1019 VisitDecl(D); 1020 Record.push_back(D->getNumTemplateParameters()); 1021 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) 1022 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record); 1023 Record.push_back(D->getFriendDecl() != 0); 1024 if (D->getFriendDecl()) 1025 Writer.AddDeclRef(D->getFriendDecl(), Record); 1026 else 1027 Writer.AddTypeSourceInfo(D->getFriendType(), Record); 1028 Writer.AddSourceLocation(D->getFriendLoc(), Record); 1029 Code = serialization::DECL_FRIEND_TEMPLATE; 1030 } 1031 1032 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) { 1033 VisitNamedDecl(D); 1034 1035 Writer.AddDeclRef(D->getTemplatedDecl(), Record); 1036 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1037 } 1038 1039 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { 1040 VisitRedeclarable(D); 1041 1042 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that 1043 // getCommonPtr() can be used while this is still initializing. 1044 if (D->isFirstDeclaration()) { 1045 // This declaration owns the 'common' pointer, so serialize that data now. 1046 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record); 1047 if (D->getInstantiatedFromMemberTemplate()) 1048 Record.push_back(D->isMemberSpecialization()); 1049 } 1050 1051 VisitTemplateDecl(D); 1052 Record.push_back(D->getIdentifierNamespace()); 1053 } 1054 1055 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 1056 VisitRedeclarableTemplateDecl(D); 1057 1058 if (D->isFirstDeclaration()) { 1059 typedef llvm::FoldingSetVector<ClassTemplateSpecializationDecl> CTSDSetTy; 1060 CTSDSetTy &CTSDSet = D->getSpecializations(); 1061 Record.push_back(CTSDSet.size()); 1062 for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) { 1063 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1064 Writer.AddDeclRef(&*I, Record); 1065 } 1066 1067 typedef llvm::FoldingSetVector<ClassTemplatePartialSpecializationDecl> 1068 CTPSDSetTy; 1069 CTPSDSetTy &CTPSDSet = D->getPartialSpecializations(); 1070 Record.push_back(CTPSDSet.size()); 1071 for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) { 1072 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1073 Writer.AddDeclRef(&*I, Record); 1074 } 1075 1076 // InjectedClassNameType is computed, no need to write it. 1077 } 1078 Code = serialization::DECL_CLASS_TEMPLATE; 1079 } 1080 1081 void ASTDeclWriter::VisitClassTemplateSpecializationDecl( 1082 ClassTemplateSpecializationDecl *D) { 1083 VisitCXXRecordDecl(D); 1084 1085 llvm::PointerUnion<ClassTemplateDecl *, 1086 ClassTemplatePartialSpecializationDecl *> InstFrom 1087 = D->getSpecializedTemplateOrPartial(); 1088 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) { 1089 Writer.AddDeclRef(InstFromD, Record); 1090 } else { 1091 Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(), 1092 Record); 1093 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record); 1094 } 1095 1096 // Explicit info. 1097 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record); 1098 if (D->getTypeAsWritten()) { 1099 Writer.AddSourceLocation(D->getExternLoc(), Record); 1100 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record); 1101 } 1102 1103 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record); 1104 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record); 1105 Record.push_back(D->getSpecializationKind()); 1106 1107 if (D->isCanonicalDecl()) { 1108 // When reading, we'll add it to the folding set of the following template. 1109 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record); 1110 } 1111 1112 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION; 1113 } 1114 1115 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl( 1116 ClassTemplatePartialSpecializationDecl *D) { 1117 VisitClassTemplateSpecializationDecl(D); 1118 1119 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1120 1121 Record.push_back(D->getNumTemplateArgsAsWritten()); 1122 for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i) 1123 Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record); 1124 1125 Record.push_back(D->getSequenceNumber()); 1126 1127 // These are read/set from/to the first declaration. 1128 if (D->getPreviousDecl() == 0) { 1129 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record); 1130 Record.push_back(D->isMemberSpecialization()); 1131 } 1132 1133 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; 1134 } 1135 1136 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl( 1137 ClassScopeFunctionSpecializationDecl *D) { 1138 VisitDecl(D); 1139 Writer.AddDeclRef(D->getSpecialization(), Record); 1140 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION; 1141 } 1142 1143 1144 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 1145 VisitRedeclarableTemplateDecl(D); 1146 1147 if (D->isFirstDeclaration()) { 1148 // This FunctionTemplateDecl owns the CommonPtr; write it. 1149 1150 // Write the function specialization declarations. 1151 Record.push_back(D->getSpecializations().size()); 1152 for (llvm::FoldingSetVector<FunctionTemplateSpecializationInfo>::iterator 1153 I = D->getSpecializations().begin(), 1154 E = D->getSpecializations().end() ; I != E; ++I) { 1155 assert(I->Function->isCanonicalDecl() && 1156 "Expected only canonical decls in set"); 1157 Writer.AddDeclRef(I->Function, Record); 1158 } 1159 } 1160 Code = serialization::DECL_FUNCTION_TEMPLATE; 1161 } 1162 1163 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 1164 VisitTypeDecl(D); 1165 1166 Record.push_back(D->wasDeclaredWithTypename()); 1167 Record.push_back(D->defaultArgumentWasInherited()); 1168 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record); 1169 1170 Code = serialization::DECL_TEMPLATE_TYPE_PARM; 1171 } 1172 1173 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 1174 // For an expanded parameter pack, record the number of expansion types here 1175 // so that it's easier for deserialization to allocate the right amount of 1176 // memory. 1177 if (D->isExpandedParameterPack()) 1178 Record.push_back(D->getNumExpansionTypes()); 1179 1180 VisitDeclaratorDecl(D); 1181 // TemplateParmPosition. 1182 Record.push_back(D->getDepth()); 1183 Record.push_back(D->getPosition()); 1184 1185 if (D->isExpandedParameterPack()) { 1186 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 1187 Writer.AddTypeRef(D->getExpansionType(I), Record); 1188 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record); 1189 } 1190 1191 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK; 1192 } else { 1193 // Rest of NonTypeTemplateParmDecl. 1194 Record.push_back(D->isParameterPack()); 1195 Record.push_back(D->getDefaultArgument() != 0); 1196 if (D->getDefaultArgument()) { 1197 Writer.AddStmt(D->getDefaultArgument()); 1198 Record.push_back(D->defaultArgumentWasInherited()); 1199 } 1200 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM; 1201 } 1202 } 1203 1204 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 1205 // For an expanded parameter pack, record the number of expansion types here 1206 // so that it's easier for deserialization to allocate the right amount of 1207 // memory. 1208 if (D->isExpandedParameterPack()) 1209 Record.push_back(D->getNumExpansionTemplateParameters()); 1210 1211 VisitTemplateDecl(D); 1212 // TemplateParmPosition. 1213 Record.push_back(D->getDepth()); 1214 Record.push_back(D->getPosition()); 1215 1216 if (D->isExpandedParameterPack()) { 1217 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters(); 1218 I != N; ++I) 1219 Writer.AddTemplateParameterList(D->getExpansionTemplateParameters(I), 1220 Record); 1221 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK; 1222 } else { 1223 // Rest of TemplateTemplateParmDecl. 1224 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record); 1225 Record.push_back(D->defaultArgumentWasInherited()); 1226 Record.push_back(D->isParameterPack()); 1227 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM; 1228 } 1229 } 1230 1231 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1232 VisitRedeclarableTemplateDecl(D); 1233 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE; 1234 } 1235 1236 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { 1237 VisitDecl(D); 1238 Writer.AddStmt(D->getAssertExpr()); 1239 Record.push_back(D->isFailed()); 1240 Writer.AddStmt(D->getMessage()); 1241 Writer.AddSourceLocation(D->getRParenLoc(), Record); 1242 Code = serialization::DECL_STATIC_ASSERT; 1243 } 1244 1245 /// \brief Emit the DeclContext part of a declaration context decl. 1246 /// 1247 /// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL 1248 /// block for this declaration context is stored. May be 0 to indicate 1249 /// that there are no declarations stored within this context. 1250 /// 1251 /// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE 1252 /// block for this declaration context is stored. May be 0 to indicate 1253 /// that there are no declarations visible from this context. Note 1254 /// that this value will not be emitted for non-primary declaration 1255 /// contexts. 1256 void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 1257 uint64_t VisibleOffset) { 1258 Record.push_back(LexicalOffset); 1259 Record.push_back(VisibleOffset); 1260 } 1261 1262 template <typename T> 1263 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) { 1264 T *First = D->getFirstDeclaration(); 1265 if (First->getMostRecentDecl() != First) { 1266 // There is more than one declaration of this entity, so we will need to 1267 // write a redeclaration chain. 1268 Writer.AddDeclRef(First, Record); 1269 Writer.Redeclarations.insert(First); 1270 1271 // Make sure that we serialize both the previous and the most-recent 1272 // declarations, which (transitively) ensures that all declarations in the 1273 // chain get serialized. 1274 (void)Writer.GetDeclRef(D->getPreviousDecl()); 1275 (void)Writer.GetDeclRef(First->getMostRecentDecl()); 1276 } else { 1277 // We use the sentinel value 0 to indicate an only declaration. 1278 Record.push_back(0); 1279 } 1280 1281 } 1282 1283 //===----------------------------------------------------------------------===// 1284 // ASTWriter Implementation 1285 //===----------------------------------------------------------------------===// 1286 1287 void ASTWriter::WriteDeclsBlockAbbrevs() { 1288 using namespace llvm; 1289 1290 BitCodeAbbrev *Abv; 1291 1292 // Abbreviation for DECL_FIELD 1293 Abv = new BitCodeAbbrev(); 1294 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD)); 1295 // Decl 1296 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1297 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1298 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1299 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1300 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1301 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1302 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1303 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1304 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1305 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1306 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1307 // NamedDecl 1308 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1309 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1310 // ValueDecl 1311 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1312 // DeclaratorDecl 1313 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1314 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1315 // FieldDecl 1316 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1317 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1318 // Type Source Info 1319 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1320 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1321 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1322 DeclFieldAbbrev = Stream.EmitAbbrev(Abv); 1323 1324 // Abbreviation for DECL_OBJC_IVAR 1325 Abv = new BitCodeAbbrev(); 1326 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR)); 1327 // Decl 1328 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1329 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1330 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1331 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1332 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1333 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1334 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1335 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1336 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1337 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1338 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1339 // NamedDecl 1340 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1341 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1342 // ValueDecl 1343 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1344 // DeclaratorDecl 1345 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1346 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1347 // FieldDecl 1348 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1349 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1350 // ObjC Ivar 1351 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl 1352 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize 1353 // Type Source Info 1354 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1355 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1356 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1357 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv); 1358 1359 // Abbreviation for DECL_ENUM 1360 Abv = new BitCodeAbbrev(); 1361 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM)); 1362 // Redeclarable 1363 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1364 // Decl 1365 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1366 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1367 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1368 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1369 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1370 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1371 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1372 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1373 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1374 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1375 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1376 // NamedDecl 1377 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1378 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1379 // TypeDecl 1380 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1381 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1382 // TagDecl 1383 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1384 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1385 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1386 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1387 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1388 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1389 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1390 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1391 // EnumDecl 1392 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef 1393 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType 1394 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType 1395 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits 1396 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits 1397 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped 1398 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag 1399 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed 1400 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum 1401 // DC 1402 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1403 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1404 DeclEnumAbbrev = Stream.EmitAbbrev(Abv); 1405 1406 // Abbreviation for DECL_RECORD 1407 Abv = new BitCodeAbbrev(); 1408 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD)); 1409 // Redeclarable 1410 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1411 // Decl 1412 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1413 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1414 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1415 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1416 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1417 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1418 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1419 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1420 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1421 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1422 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1423 // NamedDecl 1424 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1425 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1426 // TypeDecl 1427 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1428 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1429 // TagDecl 1430 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1431 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1432 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1433 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1434 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1435 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1436 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1437 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1438 // RecordDecl 1439 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember 1440 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion 1441 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember 1442 // DC 1443 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1444 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1445 DeclRecordAbbrev = Stream.EmitAbbrev(Abv); 1446 1447 // Abbreviation for DECL_PARM_VAR 1448 Abv = new BitCodeAbbrev(); 1449 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR)); 1450 // Redeclarable 1451 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1452 // Decl 1453 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1454 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1455 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1456 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1457 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1458 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1459 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1460 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1461 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1462 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1463 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1464 // NamedDecl 1465 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1466 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1467 // ValueDecl 1468 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1469 // DeclaratorDecl 1470 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1471 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1472 // VarDecl 1473 Abv->Add(BitCodeAbbrevOp(0)); // StorageClass 1474 Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten 1475 Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified 1476 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer 1477 Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable 1478 Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable 1479 Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl 1480 Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong 1481 Abv->Add(BitCodeAbbrevOp(0)); // HasInit 1482 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo 1483 // ParmVarDecl 1484 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter 1485 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth 1486 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex 1487 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier 1488 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted 1489 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg 1490 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg 1491 // Type Source Info 1492 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1493 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1494 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1495 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv); 1496 1497 // Abbreviation for DECL_TYPEDEF 1498 Abv = new BitCodeAbbrev(); 1499 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF)); 1500 // Redeclarable 1501 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1502 // Decl 1503 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1504 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1505 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1506 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1507 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1508 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1509 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1510 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1511 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1512 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1513 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1514 // NamedDecl 1515 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1516 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1517 // TypeDecl 1518 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1519 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1520 // TypedefDecl 1521 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1522 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1523 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv); 1524 1525 // Abbreviation for DECL_VAR 1526 Abv = new BitCodeAbbrev(); 1527 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR)); 1528 // Redeclarable 1529 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1530 // Decl 1531 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1532 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1533 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1534 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1535 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1536 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1537 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1538 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1539 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1540 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1541 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1542 // NamedDecl 1543 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1544 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1545 // ValueDecl 1546 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1547 // DeclaratorDecl 1548 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1549 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1550 // VarDecl 1551 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass 1552 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten 1553 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified 1554 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer 1555 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable 1556 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable 1557 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl 1558 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 1559 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit 1560 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo 1561 // Type Source Info 1562 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1563 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1564 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1565 DeclVarAbbrev = Stream.EmitAbbrev(Abv); 1566 1567 // Abbreviation for EXPR_DECL_REF 1568 Abv = new BitCodeAbbrev(); 1569 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF)); 1570 //Stmt 1571 //Expr 1572 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1573 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1574 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1575 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1576 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1577 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1578 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1579 //DeclRefExpr 1580 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier 1581 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound 1582 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs 1583 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates 1584 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //RefersToEnclosingLocal 1585 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef 1586 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1587 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv); 1588 1589 // Abbreviation for EXPR_INTEGER_LITERAL 1590 Abv = new BitCodeAbbrev(); 1591 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL)); 1592 //Stmt 1593 //Expr 1594 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1595 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1596 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1597 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1598 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1599 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1600 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1601 //Integer Literal 1602 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1603 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width 1604 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value 1605 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv); 1606 1607 // Abbreviation for EXPR_CHARACTER_LITERAL 1608 Abv = new BitCodeAbbrev(); 1609 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL)); 1610 //Stmt 1611 //Expr 1612 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1613 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1614 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1615 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1616 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1617 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1618 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1619 //Character Literal 1620 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue 1621 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1622 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide 1623 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv); 1624 1625 Abv = new BitCodeAbbrev(); 1626 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL)); 1627 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1628 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv); 1629 1630 Abv = new BitCodeAbbrev(); 1631 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE)); 1632 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1633 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1634 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv); 1635 } 1636 1637 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by 1638 /// consumers of the AST. 1639 /// 1640 /// Such decls will always be deserialized from the AST file, so we would like 1641 /// this to be as restrictive as possible. Currently the predicate is driven by 1642 /// code generation requirements, if other clients have a different notion of 1643 /// what is "required" then we may have to consider an alternate scheme where 1644 /// clients can iterate over the top-level decls and get information on them, 1645 /// without necessary deserializing them. We could explicitly require such 1646 /// clients to use a separate API call to "realize" the decl. This should be 1647 /// relatively painless since they would presumably only do it for top-level 1648 /// decls. 1649 static bool isRequiredDecl(const Decl *D, ASTContext &Context) { 1650 // An ObjCMethodDecl is never considered as "required" because its 1651 // implementation container always is. 1652 1653 // File scoped assembly or obj-c implementation must be seen. 1654 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D)) 1655 return true; 1656 1657 return Context.DeclMustBeEmitted(D); 1658 } 1659 1660 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) { 1661 // Switch case IDs are per Decl. 1662 ClearSwitchCaseIDs(); 1663 1664 RecordData Record; 1665 ASTDeclWriter W(*this, Context, Record); 1666 1667 // Determine the ID for this declaration. 1668 serialization::DeclID ID; 1669 if (D->isFromASTFile()) 1670 ID = getDeclID(D); 1671 else { 1672 serialization::DeclID &IDR = DeclIDs[D]; 1673 if (IDR == 0) 1674 IDR = NextDeclID++; 1675 1676 ID= IDR; 1677 } 1678 1679 bool isReplacingADecl = ID < FirstDeclID; 1680 1681 // If this declaration is also a DeclContext, write blocks for the 1682 // declarations that lexically stored inside its context and those 1683 // declarations that are visible from its context. These blocks 1684 // are written before the declaration itself so that we can put 1685 // their offsets into the record for the declaration. 1686 uint64_t LexicalOffset = 0; 1687 uint64_t VisibleOffset = 0; 1688 DeclContext *DC = dyn_cast<DeclContext>(D); 1689 if (DC) { 1690 if (isReplacingADecl) { 1691 // It is replacing a decl from a chained PCH; make sure that the 1692 // DeclContext is fully loaded. 1693 if (DC->hasExternalLexicalStorage()) 1694 DC->LoadLexicalDeclsFromExternalStorage(); 1695 if (DC->hasExternalVisibleStorage()) 1696 Chain->completeVisibleDeclsMap(DC); 1697 } 1698 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC); 1699 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC); 1700 } 1701 1702 if (isReplacingADecl) { 1703 // We're replacing a decl in a previous file. 1704 ReplacedDecls.push_back(ReplacedDeclInfo(ID, Stream.GetCurrentBitNo(), 1705 D->getLocation())); 1706 } else { 1707 unsigned Index = ID - FirstDeclID; 1708 1709 // Record the offset for this declaration 1710 SourceLocation Loc = D->getLocation(); 1711 if (DeclOffsets.size() == Index) 1712 DeclOffsets.push_back(DeclOffset(Loc, Stream.GetCurrentBitNo())); 1713 else if (DeclOffsets.size() < Index) { 1714 DeclOffsets.resize(Index+1); 1715 DeclOffsets[Index].setLocation(Loc); 1716 DeclOffsets[Index].BitOffset = Stream.GetCurrentBitNo(); 1717 } 1718 1719 SourceManager &SM = Context.getSourceManager(); 1720 if (Loc.isValid() && SM.isLocalSourceLocation(Loc)) 1721 associateDeclWithFile(D, ID); 1722 } 1723 1724 // Build and emit a record for this declaration 1725 Record.clear(); 1726 W.Code = (serialization::DeclCode)0; 1727 W.AbbrevToUse = 0; 1728 W.Visit(D); 1729 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset); 1730 1731 if (!W.Code) 1732 llvm::report_fatal_error(StringRef("unexpected declaration kind '") + 1733 D->getDeclKindName() + "'"); 1734 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse); 1735 1736 // Flush any expressions that were written as part of this declaration. 1737 FlushStmts(); 1738 1739 // Flush C++ base specifiers, if there are any. 1740 FlushCXXBaseSpecifiers(); 1741 1742 // Note "external" declarations so that we can add them to a record in the 1743 // AST file later. 1744 // 1745 // FIXME: This should be renamed, the predicate is much more complicated. 1746 if (isRequiredDecl(D, Context)) 1747 ExternalDefinitions.push_back(ID); 1748 } 1749