ASTWriterDecl.cpp revision 226633
1193326Sed//===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===// 2193326Sed// 3193326Sed// The LLVM Compiler Infrastructure 4193326Sed// 5193326Sed// This file is distributed under the University of Illinois Open Source 6193326Sed// License. See LICENSE.TXT for details. 7193326Sed// 8193326Sed//===----------------------------------------------------------------------===// 9193326Sed// 10198092Srdivacky// This file implements serialization for Declarations. 11193326Sed// 12193326Sed//===----------------------------------------------------------------------===// 13193326Sed 14193326Sed#include "clang/Serialization/ASTWriter.h" 15193326Sed#include "ASTCommon.h" 16193326Sed#include "clang/AST/DeclVisitor.h" 17193326Sed#include "clang/AST/DeclCXX.h" 18198092Srdivacky#include "clang/AST/DeclTemplate.h" 19193326Sed#include "clang/AST/Expr.h" 20193326Sed#include "clang/AST/DeclContextInternals.h" 21193326Sed#include "llvm/ADT/Twine.h" 22198092Srdivacky#include "llvm/Bitcode/BitstreamWriter.h" 23193326Sed#include "llvm/Support/ErrorHandling.h" 24193326Sedusing namespace clang; 25193326Sedusing namespace serialization; 26193326Sed 27198092Srdivacky//===----------------------------------------------------------------------===// 28198092Srdivacky// Declaration serialization 29198092Srdivacky//===----------------------------------------------------------------------===// 30198092Srdivacky 31193326Sednamespace clang { 32193326Sed class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> { 33193326Sed 34193326Sed ASTWriter &Writer; 35193326Sed ASTContext &Context; 36193326Sed typedef ASTWriter::RecordData RecordData; 37198092Srdivacky RecordData &Record; 38193326Sed 39198092Srdivacky public: 40198092Srdivacky serialization::DeclCode Code; 41193326Sed unsigned AbbrevToUse; 42193326Sed 43193326Sed ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, RecordData &Record) 44193326Sed : Writer(Writer), Context(Context), Record(Record) { 45193326Sed } 46198092Srdivacky 47193326Sed void Visit(Decl *D); 48193326Sed 49193326Sed void VisitDecl(Decl *D); 50193326Sed void VisitTranslationUnitDecl(TranslationUnitDecl *D); 51193326Sed void VisitNamedDecl(NamedDecl *D); 52193326Sed void VisitLabelDecl(LabelDecl *LD); 53193326Sed void VisitNamespaceDecl(NamespaceDecl *D); 54198092Srdivacky void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 55198092Srdivacky void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 56193326Sed void VisitTypeDecl(TypeDecl *D); 57193326Sed void VisitTypedefDecl(TypedefDecl *D); 58193326Sed void VisitTypeAliasDecl(TypeAliasDecl *D); 59199482Srdivacky void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 60193326Sed void VisitTagDecl(TagDecl *D); 61193326Sed void VisitEnumDecl(EnumDecl *D); 62193326Sed void VisitRecordDecl(RecordDecl *D); 63193326Sed void VisitCXXRecordDecl(CXXRecordDecl *D); 64198092Srdivacky void VisitClassTemplateSpecializationDecl( 65193326Sed ClassTemplateSpecializationDecl *D); 66198092Srdivacky void VisitClassTemplatePartialSpecializationDecl( 67198092Srdivacky ClassTemplatePartialSpecializationDecl *D); 68193326Sed void VisitClassScopeFunctionSpecializationDecl( 69193326Sed ClassScopeFunctionSpecializationDecl *D); 70193326Sed void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 71193326Sed void VisitValueDecl(ValueDecl *D); 72193326Sed void VisitEnumConstantDecl(EnumConstantDecl *D); 73193326Sed void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 74193326Sed void VisitDeclaratorDecl(DeclaratorDecl *D); 75193326Sed void VisitFunctionDecl(FunctionDecl *D); 76199482Srdivacky void VisitCXXMethodDecl(CXXMethodDecl *D); 77193326Sed void VisitCXXConstructorDecl(CXXConstructorDecl *D); 78199482Srdivacky void VisitCXXDestructorDecl(CXXDestructorDecl *D); 79199482Srdivacky void VisitCXXConversionDecl(CXXConversionDecl *D); 80199482Srdivacky void VisitFieldDecl(FieldDecl *D); 81193326Sed void VisitIndirectFieldDecl(IndirectFieldDecl *D); 82193326Sed void VisitVarDecl(VarDecl *D); 83193326Sed void VisitImplicitParamDecl(ImplicitParamDecl *D); 84193326Sed void VisitParmVarDecl(ParmVarDecl *D); 85193326Sed void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 86193326Sed void VisitTemplateDecl(TemplateDecl *D); 87193326Sed void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); 88193326Sed void VisitClassTemplateDecl(ClassTemplateDecl *D); 89193326Sed void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 90193326Sed void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 91193326Sed void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); 92193326Sed void VisitUsingDecl(UsingDecl *D); 93193326Sed void VisitUsingShadowDecl(UsingShadowDecl *D); 94193326Sed void VisitLinkageSpecDecl(LinkageSpecDecl *D); 95198398Srdivacky void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 96193326Sed void VisitAccessSpecDecl(AccessSpecDecl *D); 97198092Srdivacky void VisitFriendDecl(FriendDecl *D); 98193326Sed void VisitFriendTemplateDecl(FriendTemplateDecl *D); 99198092Srdivacky void VisitStaticAssertDecl(StaticAssertDecl *D); 100193326Sed void VisitBlockDecl(BlockDecl *D); 101198092Srdivacky 102198092Srdivacky void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 103193326Sed uint64_t VisibleOffset); 104193326Sed template <typename T> void VisitRedeclarable(Redeclarable<T> *D); 105193326Sed 106193326Sed 107193326Sed // FIXME: Put in the same order is DeclNodes.td? 108193326Sed void VisitObjCMethodDecl(ObjCMethodDecl *D); 109193326Sed void VisitObjCContainerDecl(ObjCContainerDecl *D); 110193326Sed void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 111198092Srdivacky void VisitObjCIvarDecl(ObjCIvarDecl *D); 112198092Srdivacky void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 113198092Srdivacky void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); 114198092Srdivacky void VisitObjCClassDecl(ObjCClassDecl *D); 115198092Srdivacky void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D); 116198092Srdivacky void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 117198092Srdivacky void VisitObjCImplDecl(ObjCImplDecl *D); 118193326Sed void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 119193326Sed void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 120193326Sed void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 121193326Sed void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 122198092Srdivacky void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 123193326Sed }; 124193326Sed} 125193326Sed 126193326Sedvoid ASTDeclWriter::Visit(Decl *D) { 127193326Sed DeclVisitor<ASTDeclWriter>::Visit(D); 128198092Srdivacky 129193326Sed // Source locations require array (variable-length) abbreviations. The 130193326Sed // abbreviation infrastructure requires that arrays are encoded last, so 131193326Sed // we handle it here in the case of those classes derived from DeclaratorDecl 132193326Sed if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){ 133198092Srdivacky Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record); 134198092Srdivacky } 135198092Srdivacky 136198092Srdivacky // Handle FunctionDecl's body here and write it after all other Stmts/Exprs 137198092Srdivacky // have been written. We want it last because we will not read it back when 138198092Srdivacky // retrieving it from the AST, we'll just lazily set the offset. 139198092Srdivacky if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 140198092Srdivacky Record.push_back(FD->doesThisDeclarationHaveABody()); 141193326Sed if (FD->doesThisDeclarationHaveABody()) 142193326Sed Writer.AddStmt(FD->getBody()); 143193326Sed } 144193326Sed} 145193326Sed 146193326Sedvoid ASTDeclWriter::VisitDecl(Decl *D) { 147193326Sed Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record); 148198092Srdivacky Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record); 149198092Srdivacky Writer.AddSourceLocation(D->getLocation(), Record); 150198092Srdivacky Record.push_back(D->isInvalidDecl()); 151193326Sed Record.push_back(D->hasAttrs()); 152193326Sed if (D->hasAttrs()) 153193326Sed Writer.WriteAttributes(D->getAttrs(), Record); 154193326Sed Record.push_back(D->isImplicit()); 155198092Srdivacky Record.push_back(D->isUsed(false)); 156193326Sed Record.push_back(D->isReferenced()); 157 Record.push_back(D->getAccess()); 158 Record.push_back(D->ModulePrivate); 159} 160 161void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 162 llvm_unreachable("Translation units aren't directly serialized"); 163} 164 165void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) { 166 VisitDecl(D); 167 Writer.AddDeclarationName(D->getDeclName(), Record); 168} 169 170void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) { 171 VisitNamedDecl(D); 172 Writer.AddSourceLocation(D->getLocStart(), Record); 173 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 174} 175 176void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) { 177 VisitTypeDecl(D); 178 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 179 180 if (!D->hasAttrs() && 181 !D->isImplicit() && 182 !D->isUsed(false) && 183 D->RedeclLink.getNext() == D && 184 !D->isInvalidDecl() && 185 !D->isReferenced() && 186 D->getAccess() == AS_none && 187 !D->isModulePrivate() && 188 D->getDeclName().getNameKind() == DeclarationName::Identifier) 189 AbbrevToUse = Writer.getDeclTypedefAbbrev(); 190 191 Code = serialization::DECL_TYPEDEF; 192} 193 194void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) { 195 VisitTypeDecl(D); 196 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 197 Code = serialization::DECL_TYPEALIAS; 198} 199 200void ASTDeclWriter::VisitTagDecl(TagDecl *D) { 201 VisitTypeDecl(D); 202 VisitRedeclarable(D); 203 Record.push_back(D->getIdentifierNamespace()); 204 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding 205 Record.push_back(D->isCompleteDefinition()); 206 Record.push_back(D->isEmbeddedInDeclarator()); 207 Record.push_back(D->isFreeStanding()); 208 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 209 Record.push_back(D->hasExtInfo()); 210 if (D->hasExtInfo()) 211 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 212 else 213 Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record); 214} 215 216void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) { 217 VisitTagDecl(D); 218 Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record); 219 if (!D->getIntegerTypeSourceInfo()) 220 Writer.AddTypeRef(D->getIntegerType(), Record); 221 Writer.AddTypeRef(D->getPromotionType(), Record); 222 Record.push_back(D->getNumPositiveBits()); 223 Record.push_back(D->getNumNegativeBits()); 224 Record.push_back(D->isScoped()); 225 Record.push_back(D->isScopedUsingClassTag()); 226 Record.push_back(D->isFixed()); 227 Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record); 228 229 if (!D->hasAttrs() && 230 !D->isImplicit() && 231 !D->isUsed(false) && 232 !D->hasExtInfo() && 233 D->RedeclLink.getNext() == D && 234 !D->isInvalidDecl() && 235 !D->isReferenced() && 236 D->getAccess() == AS_none && 237 !D->isModulePrivate() && 238 !CXXRecordDecl::classofKind(D->getKind()) && 239 !D->getIntegerTypeSourceInfo() && 240 D->getDeclName().getNameKind() == DeclarationName::Identifier) 241 AbbrevToUse = Writer.getDeclEnumAbbrev(); 242 243 Code = serialization::DECL_ENUM; 244} 245 246void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) { 247 VisitTagDecl(D); 248 Record.push_back(D->hasFlexibleArrayMember()); 249 Record.push_back(D->isAnonymousStructOrUnion()); 250 Record.push_back(D->hasObjectMember()); 251 252 if (!D->hasAttrs() && 253 !D->isImplicit() && 254 !D->isUsed(false) && 255 !D->hasExtInfo() && 256 D->RedeclLink.getNext() == D && 257 !D->isInvalidDecl() && 258 !D->isReferenced() && 259 D->getAccess() == AS_none && 260 !D->isModulePrivate() && 261 !CXXRecordDecl::classofKind(D->getKind()) && 262 D->getDeclName().getNameKind() == DeclarationName::Identifier) 263 AbbrevToUse = Writer.getDeclRecordAbbrev(); 264 265 Code = serialization::DECL_RECORD; 266} 267 268void ASTDeclWriter::VisitValueDecl(ValueDecl *D) { 269 VisitNamedDecl(D); 270 Writer.AddTypeRef(D->getType(), Record); 271} 272 273void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { 274 VisitValueDecl(D); 275 Record.push_back(D->getInitExpr()? 1 : 0); 276 if (D->getInitExpr()) 277 Writer.AddStmt(D->getInitExpr()); 278 Writer.AddAPSInt(D->getInitVal(), Record); 279 280 Code = serialization::DECL_ENUM_CONSTANT; 281} 282 283void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { 284 VisitValueDecl(D); 285 Writer.AddSourceLocation(D->getInnerLocStart(), Record); 286 Record.push_back(D->hasExtInfo()); 287 if (D->hasExtInfo()) 288 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 289} 290 291void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) { 292 VisitDeclaratorDecl(D); 293 VisitRedeclarable(D); 294 295 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 296 Record.push_back(D->getIdentifierNamespace()); 297 Record.push_back(D->getTemplatedKind()); 298 switch (D->getTemplatedKind()) { 299 default: llvm_unreachable("Unhandled TemplatedKind!"); 300 case FunctionDecl::TK_NonTemplate: 301 break; 302 case FunctionDecl::TK_FunctionTemplate: 303 Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record); 304 break; 305 case FunctionDecl::TK_MemberSpecialization: { 306 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); 307 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record); 308 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 309 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record); 310 break; 311 } 312 case FunctionDecl::TK_FunctionTemplateSpecialization: { 313 FunctionTemplateSpecializationInfo * 314 FTSInfo = D->getTemplateSpecializationInfo(); 315 Writer.AddDeclRef(FTSInfo->getTemplate(), Record); 316 Record.push_back(FTSInfo->getTemplateSpecializationKind()); 317 318 // Template arguments. 319 Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record); 320 321 // Template args as written. 322 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0); 323 if (FTSInfo->TemplateArgumentsAsWritten) { 324 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs); 325 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs; 326 i!=e; ++i) 327 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i], 328 Record); 329 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc, 330 Record); 331 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc, 332 Record); 333 } 334 335 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record); 336 337 if (D->isCanonicalDecl()) { 338 // Write the template that contains the specializations set. We will 339 // add a FunctionTemplateSpecializationInfo to it when reading. 340 Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record); 341 } 342 break; 343 } 344 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { 345 DependentFunctionTemplateSpecializationInfo * 346 DFTSInfo = D->getDependentSpecializationInfo(); 347 348 // Templates. 349 Record.push_back(DFTSInfo->getNumTemplates()); 350 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) 351 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record); 352 353 // Templates args. 354 Record.push_back(DFTSInfo->getNumTemplateArgs()); 355 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) 356 Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record); 357 Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record); 358 Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record); 359 break; 360 } 361 } 362 363 // FunctionDecl's body is handled last at ASTWriterDecl::Visit, 364 // after everything else is written. 365 366 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 367 Record.push_back(D->getStorageClassAsWritten()); 368 Record.push_back(D->IsInline); 369 Record.push_back(D->isInlineSpecified()); 370 Record.push_back(D->isVirtualAsWritten()); 371 Record.push_back(D->isPure()); 372 Record.push_back(D->hasInheritedPrototype()); 373 Record.push_back(D->hasWrittenPrototype()); 374 Record.push_back(D->isDeletedAsWritten()); 375 Record.push_back(D->isTrivial()); 376 Record.push_back(D->isDefaulted()); 377 Record.push_back(D->isExplicitlyDefaulted()); 378 Record.push_back(D->hasImplicitReturnZero()); 379 Record.push_back(D->isConstexpr()); 380 Writer.AddSourceLocation(D->getLocEnd(), Record); 381 382 Record.push_back(D->param_size()); 383 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 384 P != PEnd; ++P) 385 Writer.AddDeclRef(*P, Record); 386 Code = serialization::DECL_FUNCTION; 387} 388 389void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { 390 VisitNamedDecl(D); 391 // FIXME: convert to LazyStmtPtr? 392 // Unlike C/C++, method bodies will never be in header files. 393 bool HasBodyStuff = D->getBody() != 0 || 394 D->getSelfDecl() != 0 || D->getCmdDecl() != 0; 395 Record.push_back(HasBodyStuff); 396 if (HasBodyStuff) { 397 Writer.AddStmt(D->getBody()); 398 Writer.AddDeclRef(D->getSelfDecl(), Record); 399 Writer.AddDeclRef(D->getCmdDecl(), Record); 400 } 401 Record.push_back(D->isInstanceMethod()); 402 Record.push_back(D->isVariadic()); 403 Record.push_back(D->isSynthesized()); 404 Record.push_back(D->isDefined()); 405 406 Record.push_back(D->IsRedeclaration); 407 Record.push_back(D->HasRedeclaration); 408 if (D->HasRedeclaration) { 409 assert(Context.getObjCMethodRedeclaration(D)); 410 Writer.AddDeclRef(Context.getObjCMethodRedeclaration(D), Record); 411 } 412 413 // FIXME: stable encoding for @required/@optional 414 Record.push_back(D->getImplementationControl()); 415 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway 416 Record.push_back(D->getObjCDeclQualifier()); 417 Record.push_back(D->hasRelatedResultType()); 418 Writer.AddTypeRef(D->getResultType(), Record); 419 Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record); 420 Writer.AddSourceLocation(D->getLocEnd(), Record); 421 Record.push_back(D->param_size()); 422 for (ObjCMethodDecl::param_iterator P = D->param_begin(), 423 PEnd = D->param_end(); P != PEnd; ++P) 424 Writer.AddDeclRef(*P, Record); 425 426 Record.push_back(D->SelLocsKind); 427 unsigned NumStoredSelLocs = D->getNumStoredSelLocs(); 428 SourceLocation *SelLocs = D->getStoredSelLocs(); 429 Record.push_back(NumStoredSelLocs); 430 for (unsigned i = 0; i != NumStoredSelLocs; ++i) 431 Writer.AddSourceLocation(SelLocs[i], Record); 432 433 Code = serialization::DECL_OBJC_METHOD; 434} 435 436void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { 437 VisitNamedDecl(D); 438 Writer.AddSourceLocation(D->getAtStartLoc(), Record); 439 Writer.AddSourceRange(D->getAtEndRange(), Record); 440 // Abstract class (no need to define a stable serialization::DECL code). 441} 442 443void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 444 VisitObjCContainerDecl(D); 445 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 446 Writer.AddDeclRef(D->getSuperClass(), Record); 447 448 // Write out the protocols that are directly referenced by the @interface. 449 Record.push_back(D->ReferencedProtocols.size()); 450 for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(), 451 PEnd = D->protocol_end(); 452 P != PEnd; ++P) 453 Writer.AddDeclRef(*P, Record); 454 for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 455 PLEnd = D->protocol_loc_end(); 456 PL != PLEnd; ++PL) 457 Writer.AddSourceLocation(*PL, Record); 458 459 // Write out the protocols that are transitively referenced. 460 Record.push_back(D->AllReferencedProtocols.size()); 461 for (ObjCList<ObjCProtocolDecl>::iterator 462 P = D->AllReferencedProtocols.begin(), 463 PEnd = D->AllReferencedProtocols.end(); 464 P != PEnd; ++P) 465 Writer.AddDeclRef(*P, Record); 466 467 // Write out the ivars. 468 Record.push_back(D->ivar_size()); 469 for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(), 470 IEnd = D->ivar_end(); I != IEnd; ++I) 471 Writer.AddDeclRef(*I, Record); 472 Writer.AddDeclRef(D->getCategoryList(), Record); 473 Record.push_back(D->isForwardDecl()); 474 Record.push_back(D->isImplicitInterfaceDecl()); 475 Writer.AddSourceLocation(D->getSuperClassLoc(), Record); 476 Writer.AddSourceLocation(D->getLocEnd(), Record); 477 Code = serialization::DECL_OBJC_INTERFACE; 478} 479 480void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { 481 VisitFieldDecl(D); 482 // FIXME: stable encoding for @public/@private/@protected/@package 483 Record.push_back(D->getAccessControl()); 484 Record.push_back(D->getSynthesize()); 485 486 if (!D->hasAttrs() && 487 !D->isImplicit() && 488 !D->isUsed(false) && 489 !D->isInvalidDecl() && 490 !D->isReferenced() && 491 !D->isModulePrivate() && 492 !D->getBitWidth() && 493 !D->hasExtInfo() && 494 D->getDeclName()) 495 AbbrevToUse = Writer.getDeclObjCIvarAbbrev(); 496 497 Code = serialization::DECL_OBJC_IVAR; 498} 499 500void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { 501 VisitObjCContainerDecl(D); 502 Record.push_back(D->isForwardDecl()); 503 Writer.AddSourceLocation(D->getLocEnd(), Record); 504 Record.push_back(D->protocol_size()); 505 for (ObjCProtocolDecl::protocol_iterator 506 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 507 Writer.AddDeclRef(*I, Record); 508 for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 509 PLEnd = D->protocol_loc_end(); 510 PL != PLEnd; ++PL) 511 Writer.AddSourceLocation(*PL, Record); 512 Code = serialization::DECL_OBJC_PROTOCOL; 513} 514 515void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { 516 VisitFieldDecl(D); 517 Code = serialization::DECL_OBJC_AT_DEFS_FIELD; 518} 519 520void ASTDeclWriter::VisitObjCClassDecl(ObjCClassDecl *D) { 521 VisitDecl(D); 522 Writer.AddDeclRef(D->getForwardInterfaceDecl(), Record); 523 Writer.AddSourceLocation(D->getForwardDecl()->getLocation(), Record); 524 Code = serialization::DECL_OBJC_CLASS; 525} 526 527void ASTDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { 528 VisitDecl(D); 529 Record.push_back(D->protocol_size()); 530 for (ObjCForwardProtocolDecl::protocol_iterator 531 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 532 Writer.AddDeclRef(*I, Record); 533 for (ObjCForwardProtocolDecl::protocol_loc_iterator 534 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); 535 PL != PLEnd; ++PL) 536 Writer.AddSourceLocation(*PL, Record); 537 Code = serialization::DECL_OBJC_FORWARD_PROTOCOL; 538} 539 540void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { 541 VisitObjCContainerDecl(D); 542 Writer.AddDeclRef(D->getClassInterface(), Record); 543 Record.push_back(D->protocol_size()); 544 for (ObjCCategoryDecl::protocol_iterator 545 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 546 Writer.AddDeclRef(*I, Record); 547 for (ObjCCategoryDecl::protocol_loc_iterator 548 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); 549 PL != PLEnd; ++PL) 550 Writer.AddSourceLocation(*PL, Record); 551 Writer.AddDeclRef(D->getNextClassCategory(), Record); 552 Record.push_back(D->hasSynthBitfield()); 553 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); 554 Code = serialization::DECL_OBJC_CATEGORY; 555} 556 557void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { 558 VisitNamedDecl(D); 559 Writer.AddDeclRef(D->getClassInterface(), Record); 560 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS; 561} 562 563void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { 564 VisitNamedDecl(D); 565 Writer.AddSourceLocation(D->getAtLoc(), Record); 566 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 567 // FIXME: stable encoding 568 Record.push_back((unsigned)D->getPropertyAttributes()); 569 Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); 570 // FIXME: stable encoding 571 Record.push_back((unsigned)D->getPropertyImplementation()); 572 Writer.AddDeclarationName(D->getGetterName(), Record); 573 Writer.AddDeclarationName(D->getSetterName(), Record); 574 Writer.AddDeclRef(D->getGetterMethodDecl(), Record); 575 Writer.AddDeclRef(D->getSetterMethodDecl(), Record); 576 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 577 Code = serialization::DECL_OBJC_PROPERTY; 578} 579 580void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { 581 VisitObjCContainerDecl(D); 582 Writer.AddDeclRef(D->getClassInterface(), Record); 583 // Abstract class (no need to define a stable serialization::DECL code). 584} 585 586void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 587 VisitObjCImplDecl(D); 588 Writer.AddIdentifierRef(D->getIdentifier(), Record); 589 Code = serialization::DECL_OBJC_CATEGORY_IMPL; 590} 591 592void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 593 VisitObjCImplDecl(D); 594 Writer.AddDeclRef(D->getSuperClass(), Record); 595 Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers, 596 Record); 597 Record.push_back(D->hasSynthBitfield()); 598 Code = serialization::DECL_OBJC_IMPLEMENTATION; 599} 600 601void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { 602 VisitDecl(D); 603 Writer.AddSourceLocation(D->getLocStart(), Record); 604 Writer.AddDeclRef(D->getPropertyDecl(), Record); 605 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 606 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record); 607 Writer.AddStmt(D->getGetterCXXConstructor()); 608 Writer.AddStmt(D->getSetterCXXAssignment()); 609 Code = serialization::DECL_OBJC_PROPERTY_IMPL; 610} 611 612void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) { 613 VisitDeclaratorDecl(D); 614 Record.push_back(D->isMutable()); 615 Record.push_back(D->getBitWidth()? 1 : D->hasInClassInitializer() ? 2 : 0); 616 if (D->getBitWidth()) 617 Writer.AddStmt(D->getBitWidth()); 618 else if (D->hasInClassInitializer()) 619 Writer.AddStmt(D->getInClassInitializer()); 620 if (!D->getDeclName()) 621 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record); 622 623 if (!D->hasAttrs() && 624 !D->isImplicit() && 625 !D->isUsed(false) && 626 !D->isInvalidDecl() && 627 !D->isReferenced() && 628 !D->isModulePrivate() && 629 !D->getBitWidth() && 630 !D->hasInClassInitializer() && 631 !D->hasExtInfo() && 632 !ObjCIvarDecl::classofKind(D->getKind()) && 633 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) && 634 D->getDeclName()) 635 AbbrevToUse = Writer.getDeclFieldAbbrev(); 636 637 Code = serialization::DECL_FIELD; 638} 639 640void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 641 VisitValueDecl(D); 642 Record.push_back(D->getChainingSize()); 643 644 for (IndirectFieldDecl::chain_iterator 645 P = D->chain_begin(), 646 PEnd = D->chain_end(); P != PEnd; ++P) 647 Writer.AddDeclRef(*P, Record); 648 Code = serialization::DECL_INDIRECTFIELD; 649} 650 651void ASTDeclWriter::VisitVarDecl(VarDecl *D) { 652 VisitDeclaratorDecl(D); 653 VisitRedeclarable(D); 654 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 655 Record.push_back(D->getStorageClassAsWritten()); 656 Record.push_back(D->isThreadSpecified()); 657 Record.push_back(D->hasCXXDirectInitializer()); 658 Record.push_back(D->isExceptionVariable()); 659 Record.push_back(D->isNRVOVariable()); 660 Record.push_back(D->isCXXForRangeDecl()); 661 Record.push_back(D->isARCPseudoStrong()); 662 Record.push_back(D->getInit() ? 1 : 0); 663 if (D->getInit()) 664 Writer.AddStmt(D->getInit()); 665 666 MemberSpecializationInfo *SpecInfo 667 = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0; 668 Record.push_back(SpecInfo != 0); 669 if (SpecInfo) { 670 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record); 671 Record.push_back(SpecInfo->getTemplateSpecializationKind()); 672 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record); 673 } 674 675 if (!D->hasAttrs() && 676 !D->isImplicit() && 677 !D->isUsed(false) && 678 !D->isInvalidDecl() && 679 !D->isReferenced() && 680 D->getAccess() == AS_none && 681 !D->isModulePrivate() && 682 D->getDeclName().getNameKind() == DeclarationName::Identifier && 683 !D->hasExtInfo() && 684 D->RedeclLink.getNext() == D && 685 !D->hasCXXDirectInitializer() && 686 D->getInit() == 0 && 687 !isa<ParmVarDecl>(D) && 688 !SpecInfo) 689 AbbrevToUse = Writer.getDeclVarAbbrev(); 690 691 Code = serialization::DECL_VAR; 692} 693 694void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { 695 VisitVarDecl(D); 696 Code = serialization::DECL_IMPLICIT_PARAM; 697} 698 699void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { 700 VisitVarDecl(D); 701 Record.push_back(D->isObjCMethodParameter()); 702 Record.push_back(D->getFunctionScopeDepth()); 703 Record.push_back(D->getFunctionScopeIndex()); 704 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding 705 Record.push_back(D->isKNRPromoted()); 706 Record.push_back(D->hasInheritedDefaultArg()); 707 Record.push_back(D->hasUninstantiatedDefaultArg()); 708 if (D->hasUninstantiatedDefaultArg()) 709 Writer.AddStmt(D->getUninstantiatedDefaultArg()); 710 Code = serialization::DECL_PARM_VAR; 711 712 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl 713 714 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here 715 // we dynamically check for the properties that we optimize for, but don't 716 // know are true of all PARM_VAR_DECLs. 717 if (!D->hasAttrs() && 718 !D->hasExtInfo() && 719 !D->isImplicit() && 720 !D->isUsed(false) && 721 D->getAccess() == AS_none && 722 !D->isModulePrivate() && 723 D->getStorageClass() == 0 && 724 !D->hasCXXDirectInitializer() && // Can params have this ever? 725 D->getFunctionScopeDepth() == 0 && 726 D->getObjCDeclQualifier() == 0 && 727 !D->isKNRPromoted() && 728 !D->hasInheritedDefaultArg() && 729 D->getInit() == 0 && 730 !D->hasUninstantiatedDefaultArg()) // No default expr. 731 AbbrevToUse = Writer.getDeclParmVarAbbrev(); 732 733 // Check things we know are true of *every* PARM_VAR_DECL, which is more than 734 // just us assuming it. 735 assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls"); 736 assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread"); 737 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); 738 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); 739 assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl"); 740 assert(!D->isStaticDataMember() && 741 "PARM_VAR_DECL can't be static data member"); 742} 743 744void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 745 VisitDecl(D); 746 Writer.AddStmt(D->getAsmString()); 747 Writer.AddSourceLocation(D->getRParenLoc(), Record); 748 Code = serialization::DECL_FILE_SCOPE_ASM; 749} 750 751void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { 752 VisitDecl(D); 753 Writer.AddStmt(D->getBody()); 754 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record); 755 Record.push_back(D->param_size()); 756 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 757 P != PEnd; ++P) 758 Writer.AddDeclRef(*P, Record); 759 Record.push_back(D->capturesCXXThis()); 760 Record.push_back(D->getNumCaptures()); 761 for (BlockDecl::capture_iterator 762 i = D->capture_begin(), e = D->capture_end(); i != e; ++i) { 763 const BlockDecl::Capture &capture = *i; 764 Writer.AddDeclRef(capture.getVariable(), Record); 765 766 unsigned flags = 0; 767 if (capture.isByRef()) flags |= 1; 768 if (capture.isNested()) flags |= 2; 769 if (capture.hasCopyExpr()) flags |= 4; 770 Record.push_back(flags); 771 772 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr()); 773 } 774 775 Code = serialization::DECL_BLOCK; 776} 777 778void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 779 VisitDecl(D); 780 Record.push_back(D->getLanguage()); 781 Writer.AddSourceLocation(D->getExternLoc(), Record); 782 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 783 Code = serialization::DECL_LINKAGE_SPEC; 784} 785 786void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) { 787 VisitNamedDecl(D); 788 Writer.AddSourceLocation(D->getLocStart(), Record); 789 Code = serialization::DECL_LABEL; 790} 791 792 793void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { 794 VisitNamedDecl(D); 795 Record.push_back(D->isInline()); 796 Writer.AddSourceLocation(D->getLocStart(), Record); 797 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 798 Writer.AddDeclRef(D->getNextNamespace(), Record); 799 800 // Only write one reference--original or anonymous 801 Record.push_back(D->isOriginalNamespace()); 802 if (D->isOriginalNamespace()) 803 Writer.AddDeclRef(D->getAnonymousNamespace(), Record); 804 else 805 Writer.AddDeclRef(D->getOriginalNamespace(), Record); 806 Code = serialization::DECL_NAMESPACE; 807 808 if (Writer.hasChain() && !D->isOriginalNamespace() && 809 D->getOriginalNamespace()->isFromASTFile()) { 810 NamespaceDecl *NS = D->getOriginalNamespace(); 811 Writer.AddUpdatedDeclContext(NS); 812 813 // Make sure all visible decls are written. They will be recorded later. 814 NS->lookup(DeclarationName()); 815 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(NS->getLookupPtr()); 816 if (Map) { 817 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end(); 818 D != DEnd; ++D) { 819 DeclContext::lookup_result Result = D->second.getLookupResult(); 820 while (Result.first != Result.second) { 821 Writer.GetDeclRef(*Result.first); 822 ++Result.first; 823 } 824 } 825 } 826 } 827 828 if (Writer.hasChain() && D->isAnonymousNamespace() && !D->getNextNamespace()){ 829 // This is a most recent reopening of the anonymous namespace. If its parent 830 // is in a previous PCH (or is the TU), mark that parent for update, because 831 // the original namespace always points to the latest re-opening of its 832 // anonymous namespace. 833 Decl *Parent = cast<Decl>( 834 D->getParent()->getRedeclContext()->getPrimaryContext()); 835 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) { 836 ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent]; 837 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE); 838 Writer.AddDeclRef(D, Record); 839 } 840 } 841} 842 843void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 844 VisitNamedDecl(D); 845 Writer.AddSourceLocation(D->getNamespaceLoc(), Record); 846 Writer.AddSourceLocation(D->getTargetNameLoc(), Record); 847 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 848 Writer.AddDeclRef(D->getNamespace(), Record); 849 Code = serialization::DECL_NAMESPACE_ALIAS; 850} 851 852void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) { 853 VisitNamedDecl(D); 854 Writer.AddSourceLocation(D->getUsingLocation(), Record); 855 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 856 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 857 Writer.AddDeclRef(D->FirstUsingShadow, Record); 858 Record.push_back(D->isTypeName()); 859 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record); 860 Code = serialization::DECL_USING; 861} 862 863void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { 864 VisitNamedDecl(D); 865 Writer.AddDeclRef(D->getTargetDecl(), Record); 866 Writer.AddDeclRef(D->UsingOrNextShadow, Record); 867 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record); 868 Code = serialization::DECL_USING_SHADOW; 869} 870 871void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 872 VisitNamedDecl(D); 873 Writer.AddSourceLocation(D->getUsingLoc(), Record); 874 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record); 875 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 876 Writer.AddDeclRef(D->getNominatedNamespace(), Record); 877 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record); 878 Code = serialization::DECL_USING_DIRECTIVE; 879} 880 881void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 882 VisitValueDecl(D); 883 Writer.AddSourceLocation(D->getUsingLoc(), Record); 884 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 885 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 886 Code = serialization::DECL_UNRESOLVED_USING_VALUE; 887} 888 889void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl( 890 UnresolvedUsingTypenameDecl *D) { 891 VisitTypeDecl(D); 892 Writer.AddSourceLocation(D->getTypenameLoc(), Record); 893 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 894 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME; 895} 896 897void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { 898 VisitRecordDecl(D); 899 900 CXXRecordDecl *DefinitionDecl = 0; 901 if (D->DefinitionData) 902 DefinitionDecl = D->DefinitionData->Definition; 903 Writer.AddDeclRef(DefinitionDecl, Record); 904 if (D == DefinitionDecl) 905 Writer.AddCXXDefinitionData(D, Record); 906 907 enum { 908 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization 909 }; 910 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { 911 Record.push_back(CXXRecTemplate); 912 Writer.AddDeclRef(TemplD, Record); 913 } else if (MemberSpecializationInfo *MSInfo 914 = D->getMemberSpecializationInfo()) { 915 Record.push_back(CXXRecMemberSpecialization); 916 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record); 917 Record.push_back(MSInfo->getTemplateSpecializationKind()); 918 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record); 919 } else { 920 Record.push_back(CXXRecNotTemplate); 921 } 922 923 // Store the key function to avoid deserializing every method so we can 924 // compute it. 925 if (D->IsCompleteDefinition) 926 Writer.AddDeclRef(Context.getKeyFunction(D), Record); 927 928 Code = serialization::DECL_CXX_RECORD; 929} 930 931void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { 932 VisitFunctionDecl(D); 933 Record.push_back(D->size_overridden_methods()); 934 for (CXXMethodDecl::method_iterator 935 I = D->begin_overridden_methods(), E = D->end_overridden_methods(); 936 I != E; ++I) 937 Writer.AddDeclRef(*I, Record); 938 Code = serialization::DECL_CXX_METHOD; 939} 940 941void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 942 VisitCXXMethodDecl(D); 943 944 Record.push_back(D->IsExplicitSpecified); 945 Record.push_back(D->ImplicitlyDefined); 946 Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers, 947 Record); 948 949 Code = serialization::DECL_CXX_CONSTRUCTOR; 950} 951 952void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 953 VisitCXXMethodDecl(D); 954 955 Record.push_back(D->ImplicitlyDefined); 956 Writer.AddDeclRef(D->OperatorDelete, Record); 957 958 Code = serialization::DECL_CXX_DESTRUCTOR; 959} 960 961void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { 962 VisitCXXMethodDecl(D); 963 Record.push_back(D->IsExplicitSpecified); 964 Code = serialization::DECL_CXX_CONVERSION; 965} 966 967void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { 968 VisitDecl(D); 969 Writer.AddSourceLocation(D->getColonLoc(), Record); 970 Code = serialization::DECL_ACCESS_SPEC; 971} 972 973void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) { 974 VisitDecl(D); 975 Record.push_back(D->Friend.is<TypeSourceInfo*>()); 976 if (D->Friend.is<TypeSourceInfo*>()) 977 Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record); 978 else 979 Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record); 980 Writer.AddDeclRef(D->getNextFriend(), Record); 981 Record.push_back(D->UnsupportedFriend); 982 Writer.AddSourceLocation(D->FriendLoc, Record); 983 Code = serialization::DECL_FRIEND; 984} 985 986void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { 987 VisitDecl(D); 988 Record.push_back(D->getNumTemplateParameters()); 989 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) 990 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record); 991 Record.push_back(D->getFriendDecl() != 0); 992 if (D->getFriendDecl()) 993 Writer.AddDeclRef(D->getFriendDecl(), Record); 994 else 995 Writer.AddTypeSourceInfo(D->getFriendType(), Record); 996 Writer.AddSourceLocation(D->getFriendLoc(), Record); 997 Code = serialization::DECL_FRIEND_TEMPLATE; 998} 999 1000void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) { 1001 VisitNamedDecl(D); 1002 1003 Writer.AddDeclRef(D->getTemplatedDecl(), Record); 1004 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1005} 1006 1007void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { 1008 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that 1009 // getCommonPtr() can be used while this is still initializing. 1010 1011 Writer.AddDeclRef(D->getPreviousDeclaration(), Record); 1012 if (D->getPreviousDeclaration()) 1013 Writer.AddDeclRef(D->getFirstDeclaration(), Record); 1014 1015 if (D->getPreviousDeclaration() == 0) { 1016 // This TemplateDecl owns the CommonPtr; write it. 1017 assert(D->isCanonicalDecl()); 1018 1019 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record); 1020 if (D->getInstantiatedFromMemberTemplate()) 1021 Record.push_back(D->isMemberSpecialization()); 1022 1023 Writer.AddDeclRef(D->getCommonPtr()->Latest, Record); 1024 } else { 1025 RedeclarableTemplateDecl *First = D->getFirstDeclaration(); 1026 assert(First != D); 1027 // If this is a most recent redeclaration that is pointed to by a first decl 1028 // in a chained PCH, keep track of the association with the map so we can 1029 // update the first decl during AST reading. 1030 if (First->getMostRecentDeclaration() == D && 1031 First->isFromASTFile() && !D->isFromASTFile()) { 1032 assert(Writer.FirstLatestDecls.find(First)==Writer.FirstLatestDecls.end() 1033 && "The latest is already set"); 1034 Writer.FirstLatestDecls[First] = D; 1035 } 1036 } 1037 1038 VisitTemplateDecl(D); 1039 Record.push_back(D->getIdentifierNamespace()); 1040} 1041 1042void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 1043 VisitRedeclarableTemplateDecl(D); 1044 1045 if (D->getPreviousDeclaration() == 0) { 1046 typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy; 1047 CTSDSetTy &CTSDSet = D->getSpecializations(); 1048 Record.push_back(CTSDSet.size()); 1049 for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) { 1050 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1051 Writer.AddDeclRef(&*I, Record); 1052 } 1053 1054 typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy; 1055 CTPSDSetTy &CTPSDSet = D->getPartialSpecializations(); 1056 Record.push_back(CTPSDSet.size()); 1057 for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) { 1058 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1059 Writer.AddDeclRef(&*I, Record); 1060 } 1061 1062 // InjectedClassNameType is computed, no need to write it. 1063 } 1064 Code = serialization::DECL_CLASS_TEMPLATE; 1065} 1066 1067void ASTDeclWriter::VisitClassTemplateSpecializationDecl( 1068 ClassTemplateSpecializationDecl *D) { 1069 VisitCXXRecordDecl(D); 1070 1071 llvm::PointerUnion<ClassTemplateDecl *, 1072 ClassTemplatePartialSpecializationDecl *> InstFrom 1073 = D->getSpecializedTemplateOrPartial(); 1074 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) { 1075 Writer.AddDeclRef(InstFromD, Record); 1076 } else { 1077 Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(), 1078 Record); 1079 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record); 1080 } 1081 1082 // Explicit info. 1083 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record); 1084 if (D->getTypeAsWritten()) { 1085 Writer.AddSourceLocation(D->getExternLoc(), Record); 1086 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record); 1087 } 1088 1089 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record); 1090 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record); 1091 Record.push_back(D->getSpecializationKind()); 1092 1093 if (D->isCanonicalDecl()) { 1094 // When reading, we'll add it to the folding set of the following template. 1095 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record); 1096 } 1097 1098 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION; 1099} 1100 1101void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl( 1102 ClassTemplatePartialSpecializationDecl *D) { 1103 VisitClassTemplateSpecializationDecl(D); 1104 1105 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1106 1107 Record.push_back(D->getNumTemplateArgsAsWritten()); 1108 for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i) 1109 Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record); 1110 1111 Record.push_back(D->getSequenceNumber()); 1112 1113 // These are read/set from/to the first declaration. 1114 if (D->getPreviousDeclaration() == 0) { 1115 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record); 1116 Record.push_back(D->isMemberSpecialization()); 1117 } 1118 1119 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; 1120} 1121 1122void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl( 1123 ClassScopeFunctionSpecializationDecl *D) { 1124 VisitDecl(D); 1125 Writer.AddDeclRef(D->getSpecialization(), Record); 1126 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION; 1127} 1128 1129 1130void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 1131 VisitRedeclarableTemplateDecl(D); 1132 1133 if (D->getPreviousDeclaration() == 0) { 1134 // This FunctionTemplateDecl owns the CommonPtr; write it. 1135 1136 // Write the function specialization declarations. 1137 Record.push_back(D->getSpecializations().size()); 1138 for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator 1139 I = D->getSpecializations().begin(), 1140 E = D->getSpecializations().end() ; I != E; ++I) { 1141 assert(I->Function->isCanonicalDecl() && 1142 "Expected only canonical decls in set"); 1143 Writer.AddDeclRef(I->Function, Record); 1144 } 1145 } 1146 Code = serialization::DECL_FUNCTION_TEMPLATE; 1147} 1148 1149void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 1150 VisitTypeDecl(D); 1151 1152 Record.push_back(D->wasDeclaredWithTypename()); 1153 Record.push_back(D->defaultArgumentWasInherited()); 1154 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record); 1155 1156 Code = serialization::DECL_TEMPLATE_TYPE_PARM; 1157} 1158 1159void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 1160 // For an expanded parameter pack, record the number of expansion types here 1161 // so that it's easier for 1162 if (D->isExpandedParameterPack()) 1163 Record.push_back(D->getNumExpansionTypes()); 1164 1165 VisitDeclaratorDecl(D); 1166 // TemplateParmPosition. 1167 Record.push_back(D->getDepth()); 1168 Record.push_back(D->getPosition()); 1169 1170 if (D->isExpandedParameterPack()) { 1171 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 1172 Writer.AddTypeRef(D->getExpansionType(I), Record); 1173 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record); 1174 } 1175 1176 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK; 1177 } else { 1178 // Rest of NonTypeTemplateParmDecl. 1179 Record.push_back(D->isParameterPack()); 1180 Record.push_back(D->getDefaultArgument() != 0); 1181 if (D->getDefaultArgument()) { 1182 Writer.AddStmt(D->getDefaultArgument()); 1183 Record.push_back(D->defaultArgumentWasInherited()); 1184 } 1185 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM; 1186 } 1187} 1188 1189void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 1190 VisitTemplateDecl(D); 1191 // TemplateParmPosition. 1192 Record.push_back(D->getDepth()); 1193 Record.push_back(D->getPosition()); 1194 // Rest of TemplateTemplateParmDecl. 1195 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record); 1196 Record.push_back(D->defaultArgumentWasInherited()); 1197 Record.push_back(D->isParameterPack()); 1198 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM; 1199} 1200 1201void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1202 VisitRedeclarableTemplateDecl(D); 1203 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE; 1204} 1205 1206void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { 1207 VisitDecl(D); 1208 Writer.AddStmt(D->getAssertExpr()); 1209 Writer.AddStmt(D->getMessage()); 1210 Writer.AddSourceLocation(D->getRParenLoc(), Record); 1211 Code = serialization::DECL_STATIC_ASSERT; 1212} 1213 1214/// \brief Emit the DeclContext part of a declaration context decl. 1215/// 1216/// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL 1217/// block for this declaration context is stored. May be 0 to indicate 1218/// that there are no declarations stored within this context. 1219/// 1220/// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE 1221/// block for this declaration context is stored. May be 0 to indicate 1222/// that there are no declarations visible from this context. Note 1223/// that this value will not be emitted for non-primary declaration 1224/// contexts. 1225void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 1226 uint64_t VisibleOffset) { 1227 Record.push_back(LexicalOffset); 1228 Record.push_back(VisibleOffset); 1229} 1230 1231template <typename T> 1232void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) { 1233 enum { NoRedeclaration = 0, PointsToPrevious, PointsToLatest }; 1234 if (D->RedeclLink.getNext() == D) { 1235 Record.push_back(NoRedeclaration); 1236 } else { 1237 if (D->RedeclLink.NextIsPrevious()) { 1238 Record.push_back(PointsToPrevious); 1239 Writer.AddDeclRef(D->getPreviousDeclaration(), Record); 1240 Writer.AddDeclRef(D->getFirstDeclaration(), Record); 1241 } else { 1242 Record.push_back(PointsToLatest); 1243 Writer.AddDeclRef(D->RedeclLink.getPointer(), Record); 1244 } 1245 } 1246 1247 T *First = D->getFirstDeclaration(); 1248 T *ThisDecl = static_cast<T*>(D); 1249 // If this is a most recent redeclaration that is pointed to by a first decl 1250 // in a chained PCH, keep track of the association with the map so we can 1251 // update the first decl during AST reading. 1252 if (ThisDecl != First && First->getMostRecentDeclaration() == ThisDecl && 1253 First->isFromASTFile() && !ThisDecl->isFromASTFile()) { 1254 assert(Writer.FirstLatestDecls.find(First) == Writer.FirstLatestDecls.end() 1255 && "The latest is already set"); 1256 Writer.FirstLatestDecls[First] = ThisDecl; 1257 } 1258} 1259 1260//===----------------------------------------------------------------------===// 1261// ASTWriter Implementation 1262//===----------------------------------------------------------------------===// 1263 1264void ASTWriter::WriteDeclsBlockAbbrevs() { 1265 using namespace llvm; 1266 1267 BitCodeAbbrev *Abv; 1268 1269 // Abbreviation for DECL_FIELD 1270 Abv = new BitCodeAbbrev(); 1271 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD)); 1272 // Decl 1273 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1274 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1275 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1276 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1277 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1278 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1279 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1280 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1281 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1282 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1283 // NamedDecl 1284 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1285 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1286 // ValueDecl 1287 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1288 // DeclaratorDecl 1289 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1290 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1291 // FieldDecl 1292 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1293 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1294 // Type Source Info 1295 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1296 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1297 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1298 DeclFieldAbbrev = Stream.EmitAbbrev(Abv); 1299 1300 // Abbreviation for DECL_OBJC_IVAR 1301 Abv = new BitCodeAbbrev(); 1302 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR)); 1303 // Decl 1304 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1305 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1306 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1307 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1308 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1309 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1310 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1311 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1312 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1313 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1314 // NamedDecl 1315 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1316 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1317 // ValueDecl 1318 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1319 // DeclaratorDecl 1320 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1321 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1322 // FieldDecl 1323 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1324 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1325 // ObjC Ivar 1326 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl 1327 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize 1328 // Type Source Info 1329 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1330 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1331 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1332 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv); 1333 1334 // Abbreviation for DECL_ENUM 1335 Abv = new BitCodeAbbrev(); 1336 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM)); 1337 // Decl 1338 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1339 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1340 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1341 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1342 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1343 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1344 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1345 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1346 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1347 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1348 // NamedDecl 1349 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1350 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1351 // TypeDecl 1352 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1353 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1354 // Redeclarable 1355 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1356 // TagDecl 1357 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1358 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1359 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1360 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1361 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1362 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1363 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1364 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1365 // EnumDecl 1366 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef 1367 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType 1368 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType 1369 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits 1370 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits 1371 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped 1372 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag 1373 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed 1374 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum 1375 // DC 1376 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1377 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1378 DeclEnumAbbrev = Stream.EmitAbbrev(Abv); 1379 1380 // Abbreviation for DECL_RECORD 1381 Abv = new BitCodeAbbrev(); 1382 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD)); 1383 // Decl 1384 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1385 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1386 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1387 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1388 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1389 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1390 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1391 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1392 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1393 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1394 // NamedDecl 1395 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1396 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1397 // TypeDecl 1398 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1399 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1400 // Redeclarable 1401 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1402 // TagDecl 1403 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1404 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1405 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1406 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1407 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1408 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1409 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1410 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1411 // RecordDecl 1412 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember 1413 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion 1414 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember 1415 // DC 1416 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1417 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1418 DeclRecordAbbrev = Stream.EmitAbbrev(Abv); 1419 1420 // Abbreviation for DECL_PARM_VAR 1421 Abv = new BitCodeAbbrev(); 1422 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR)); 1423 // Decl 1424 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1425 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1426 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1427 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1428 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1429 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1430 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1431 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1432 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1433 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1434 // NamedDecl 1435 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1436 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1437 // ValueDecl 1438 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1439 // DeclaratorDecl 1440 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1441 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1442 // VarDecl 1443 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1444 Abv->Add(BitCodeAbbrevOp(0)); // StorageClass 1445 Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten 1446 Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified 1447 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer 1448 Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable 1449 Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable 1450 Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl 1451 Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong 1452 Abv->Add(BitCodeAbbrevOp(0)); // HasInit 1453 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo 1454 // ParmVarDecl 1455 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter 1456 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth 1457 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex 1458 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier 1459 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted 1460 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg 1461 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg 1462 // Type Source Info 1463 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1464 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1465 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1466 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv); 1467 1468 // Abbreviation for DECL_TYPEDEF 1469 Abv = new BitCodeAbbrev(); 1470 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF)); 1471 // Decl 1472 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1473 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1474 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1475 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1476 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1477 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1478 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1479 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1480 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1481 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1482 // NamedDecl 1483 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1484 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1485 // TypeDecl 1486 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1487 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1488 // TypedefDecl 1489 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1490 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1491 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv); 1492 1493 // Abbreviation for DECL_VAR 1494 Abv = new BitCodeAbbrev(); 1495 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR)); 1496 // Decl 1497 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1498 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1499 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1500 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1501 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1502 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1503 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1504 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1505 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1506 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1507 // NamedDecl 1508 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1509 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1510 // ValueDecl 1511 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1512 // DeclaratorDecl 1513 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1514 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1515 // VarDecl 1516 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1517 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass 1518 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten 1519 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified 1520 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer 1521 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable 1522 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable 1523 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl 1524 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 1525 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit 1526 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo 1527 // Type Source Info 1528 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1529 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1530 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1531 DeclVarAbbrev = Stream.EmitAbbrev(Abv); 1532 1533 // Abbreviation for EXPR_DECL_REF 1534 Abv = new BitCodeAbbrev(); 1535 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF)); 1536 //Stmt 1537 //Expr 1538 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1539 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1540 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1541 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1542 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1543 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1544 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1545 //DeclRefExpr 1546 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier 1547 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound 1548 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs 1549 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates 1550 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef 1551 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1552 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv); 1553 1554 // Abbreviation for EXPR_INTEGER_LITERAL 1555 Abv = new BitCodeAbbrev(); 1556 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL)); 1557 //Stmt 1558 //Expr 1559 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1560 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1561 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1562 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1563 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1564 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1565 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1566 //Integer Literal 1567 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1568 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width 1569 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value 1570 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv); 1571 1572 // Abbreviation for EXPR_CHARACTER_LITERAL 1573 Abv = new BitCodeAbbrev(); 1574 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL)); 1575 //Stmt 1576 //Expr 1577 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1578 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1579 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1580 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1581 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1582 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1583 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1584 //Character Literal 1585 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue 1586 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1587 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide 1588 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv); 1589 1590 Abv = new BitCodeAbbrev(); 1591 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL)); 1592 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1593 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv); 1594 1595 Abv = new BitCodeAbbrev(); 1596 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE)); 1597 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1598 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1599 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv); 1600} 1601 1602/// isRequiredDecl - Check if this is a "required" Decl, which must be seen by 1603/// consumers of the AST. 1604/// 1605/// Such decls will always be deserialized from the AST file, so we would like 1606/// this to be as restrictive as possible. Currently the predicate is driven by 1607/// code generation requirements, if other clients have a different notion of 1608/// what is "required" then we may have to consider an alternate scheme where 1609/// clients can iterate over the top-level decls and get information on them, 1610/// without necessary deserializing them. We could explicitly require such 1611/// clients to use a separate API call to "realize" the decl. This should be 1612/// relatively painless since they would presumably only do it for top-level 1613/// decls. 1614static bool isRequiredDecl(const Decl *D, ASTContext &Context) { 1615 // An ObjCMethodDecl is never considered as "required" because its 1616 // implementation container always is. 1617 1618 // File scoped assembly or obj-c implementation must be seen. 1619 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D)) 1620 return true; 1621 1622 return Context.DeclMustBeEmitted(D); 1623} 1624 1625void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) { 1626 // Switch case IDs are per Decl. 1627 ClearSwitchCaseIDs(); 1628 1629 RecordData Record; 1630 ASTDeclWriter W(*this, Context, Record); 1631 1632 // If this declaration is also a DeclContext, write blocks for the 1633 // declarations that lexically stored inside its context and those 1634 // declarations that are visible from its context. These blocks 1635 // are written before the declaration itself so that we can put 1636 // their offsets into the record for the declaration. 1637 uint64_t LexicalOffset = 0; 1638 uint64_t VisibleOffset = 0; 1639 DeclContext *DC = dyn_cast<DeclContext>(D); 1640 if (DC) { 1641 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC); 1642 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC); 1643 } 1644 1645 // Determine the ID for this declaration 1646 serialization::DeclID &IDR = DeclIDs[D]; 1647 if (IDR == 0) 1648 IDR = NextDeclID++; 1649 serialization::DeclID ID = IDR; 1650 1651 if (ID < FirstDeclID) { 1652 // We're replacing a decl in a previous file. 1653 ReplacedDecls.push_back(std::make_pair(ID, Stream.GetCurrentBitNo())); 1654 } else { 1655 unsigned Index = ID - FirstDeclID; 1656 1657 // Record the offset for this declaration 1658 if (DeclOffsets.size() == Index) 1659 DeclOffsets.push_back(Stream.GetCurrentBitNo()); 1660 else if (DeclOffsets.size() < Index) { 1661 DeclOffsets.resize(Index+1); 1662 DeclOffsets[Index] = Stream.GetCurrentBitNo(); 1663 } 1664 } 1665 1666 // Build and emit a record for this declaration 1667 Record.clear(); 1668 W.Code = (serialization::DeclCode)0; 1669 W.AbbrevToUse = 0; 1670 W.Visit(D); 1671 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset); 1672 1673 if (!W.Code) 1674 llvm::report_fatal_error(StringRef("unexpected declaration kind '") + 1675 D->getDeclKindName() + "'"); 1676 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse); 1677 1678 // Flush any expressions that were written as part of this declaration. 1679 FlushStmts(); 1680 1681 // Flush C++ base specifiers, if there are any. 1682 FlushCXXBaseSpecifiers(); 1683 1684 // Note "external" declarations so that we can add them to a record in the 1685 // AST file later. 1686 // 1687 // FIXME: This should be renamed, the predicate is much more complicated. 1688 if (isRequiredDecl(D, Context)) 1689 ExternalDefinitions.push_back(ID); 1690} 1691