ASTWriterDecl.cpp revision 7076281fcaab2a01e6226b05c822dd3142167636
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 "ASTCommon.h" 16#include "clang/AST/DeclVisitor.h" 17#include "clang/AST/DeclCXX.h" 18#include "clang/AST/DeclTemplate.h" 19#include "clang/AST/Expr.h" 20#include "clang/AST/DeclContextInternals.h" 21#include "clang/Basic/SourceManager.h" 22#include "llvm/ADT/Twine.h" 23#include "llvm/Bitcode/BitstreamWriter.h" 24#include "llvm/Support/ErrorHandling.h" 25using namespace clang; 26using namespace serialization; 27 28//===----------------------------------------------------------------------===// 29// Declaration serialization 30//===----------------------------------------------------------------------===// 31 32namespace clang { 33 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> { 34 35 ASTWriter &Writer; 36 ASTContext &Context; 37 typedef ASTWriter::RecordData RecordData; 38 RecordData &Record; 39 40 public: 41 serialization::DeclCode Code; 42 unsigned AbbrevToUse; 43 44 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, RecordData &Record) 45 : Writer(Writer), Context(Context), Record(Record) { 46 } 47 48 void Visit(Decl *D); 49 50 void VisitDecl(Decl *D); 51 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 52 void VisitNamedDecl(NamedDecl *D); 53 void VisitLabelDecl(LabelDecl *LD); 54 void VisitNamespaceDecl(NamespaceDecl *D); 55 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 56 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 57 void VisitTypeDecl(TypeDecl *D); 58 void VisitTypedefNameDecl(TypedefNameDecl *D); 59 void VisitTypedefDecl(TypedefDecl *D); 60 void VisitTypeAliasDecl(TypeAliasDecl *D); 61 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 62 void VisitTagDecl(TagDecl *D); 63 void VisitEnumDecl(EnumDecl *D); 64 void VisitRecordDecl(RecordDecl *D); 65 void VisitCXXRecordDecl(CXXRecordDecl *D); 66 void VisitClassTemplateSpecializationDecl( 67 ClassTemplateSpecializationDecl *D); 68 void VisitClassTemplatePartialSpecializationDecl( 69 ClassTemplatePartialSpecializationDecl *D); 70 void VisitClassScopeFunctionSpecializationDecl( 71 ClassScopeFunctionSpecializationDecl *D); 72 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 73 void VisitValueDecl(ValueDecl *D); 74 void VisitEnumConstantDecl(EnumConstantDecl *D); 75 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 76 void VisitDeclaratorDecl(DeclaratorDecl *D); 77 void VisitFunctionDecl(FunctionDecl *D); 78 void VisitCXXMethodDecl(CXXMethodDecl *D); 79 void VisitCXXConstructorDecl(CXXConstructorDecl *D); 80 void VisitCXXDestructorDecl(CXXDestructorDecl *D); 81 void VisitCXXConversionDecl(CXXConversionDecl *D); 82 void VisitFieldDecl(FieldDecl *D); 83 void VisitIndirectFieldDecl(IndirectFieldDecl *D); 84 void VisitVarDecl(VarDecl *D); 85 void VisitImplicitParamDecl(ImplicitParamDecl *D); 86 void VisitParmVarDecl(ParmVarDecl *D); 87 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 88 void VisitTemplateDecl(TemplateDecl *D); 89 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); 90 void VisitClassTemplateDecl(ClassTemplateDecl *D); 91 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 92 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 93 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); 94 void VisitUsingDecl(UsingDecl *D); 95 void VisitUsingShadowDecl(UsingShadowDecl *D); 96 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 97 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 98 void VisitImportDecl(ImportDecl *D); 99 void VisitAccessSpecDecl(AccessSpecDecl *D); 100 void VisitFriendDecl(FriendDecl *D); 101 void VisitFriendTemplateDecl(FriendTemplateDecl *D); 102 void VisitStaticAssertDecl(StaticAssertDecl *D); 103 void VisitBlockDecl(BlockDecl *D); 104 105 void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 106 uint64_t VisibleOffset); 107 template <typename T> void VisitRedeclarable(Redeclarable<T> *D); 108 109 110 // FIXME: Put in the same order is DeclNodes.td? 111 void VisitObjCMethodDecl(ObjCMethodDecl *D); 112 void VisitObjCContainerDecl(ObjCContainerDecl *D); 113 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 114 void VisitObjCIvarDecl(ObjCIvarDecl *D); 115 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 116 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); 117 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 118 void VisitObjCImplDecl(ObjCImplDecl *D); 119 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 120 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 121 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 122 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 123 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 124 }; 125} 126 127void ASTDeclWriter::Visit(Decl *D) { 128 DeclVisitor<ASTDeclWriter>::Visit(D); 129 130 // Source locations require array (variable-length) abbreviations. The 131 // abbreviation infrastructure requires that arrays are encoded last, so 132 // we handle it here in the case of those classes derived from DeclaratorDecl 133 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){ 134 Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record); 135 } 136 137 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs 138 // have been written. We want it last because we will not read it back when 139 // retrieving it from the AST, we'll just lazily set the offset. 140 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 141 Record.push_back(FD->doesThisDeclarationHaveABody()); 142 if (FD->doesThisDeclarationHaveABody()) 143 Writer.AddStmt(FD->getBody()); 144 } 145} 146 147void ASTDeclWriter::VisitDecl(Decl *D) { 148 Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record); 149 Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record); 150 Record.push_back(D->isInvalidDecl()); 151 Record.push_back(D->hasAttrs()); 152 if (D->hasAttrs()) 153 Writer.WriteAttributes(D->getAttrs(), Record); 154 Record.push_back(D->isImplicit()); 155 Record.push_back(D->isUsed(false)); 156 Record.push_back(D->isReferenced()); 157 Record.push_back(D->TopLevelDeclInObjCContainer); 158 Record.push_back(D->getAccess()); 159 Record.push_back(D->ModulePrivate); 160 Record.push_back(Writer.inferSubmoduleIDFromLocation(D->getLocation())); 161} 162 163void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 164 llvm_unreachable("Translation units aren't directly serialized"); 165} 166 167void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) { 168 VisitDecl(D); 169 Writer.AddDeclarationName(D->getDeclName(), Record); 170} 171 172void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) { 173 VisitNamedDecl(D); 174 Writer.AddSourceLocation(D->getLocStart(), Record); 175 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 176} 177 178void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) { 179 VisitRedeclarable(D); 180 VisitTypeDecl(D); 181 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 182} 183 184void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) { 185 VisitTypedefNameDecl(D); 186 if (!D->hasAttrs() && 187 !D->isImplicit() && 188 !D->isUsed(false) && 189 !D->getPreviousDeclaration() && 190 !D->isInvalidDecl() && 191 !D->isReferenced() && 192 !D->isTopLevelDeclInObjCContainer() && 193 D->getAccess() == AS_none && 194 !D->isModulePrivate() && 195 D->getDeclName().getNameKind() == DeclarationName::Identifier) 196 AbbrevToUse = Writer.getDeclTypedefAbbrev(); 197 198 Code = serialization::DECL_TYPEDEF; 199} 200 201void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) { 202 VisitTypedefNameDecl(D); 203 Code = serialization::DECL_TYPEALIAS; 204} 205 206void ASTDeclWriter::VisitTagDecl(TagDecl *D) { 207 VisitRedeclarable(D); 208 VisitTypeDecl(D); 209 Record.push_back(D->getIdentifierNamespace()); 210 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding 211 Record.push_back(D->isCompleteDefinition()); 212 Record.push_back(D->isEmbeddedInDeclarator()); 213 Record.push_back(D->isFreeStanding()); 214 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 215 Record.push_back(D->hasExtInfo()); 216 if (D->hasExtInfo()) 217 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 218 else 219 Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record); 220} 221 222void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) { 223 VisitTagDecl(D); 224 Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record); 225 if (!D->getIntegerTypeSourceInfo()) 226 Writer.AddTypeRef(D->getIntegerType(), Record); 227 Writer.AddTypeRef(D->getPromotionType(), Record); 228 Record.push_back(D->getNumPositiveBits()); 229 Record.push_back(D->getNumNegativeBits()); 230 Record.push_back(D->isScoped()); 231 Record.push_back(D->isScopedUsingClassTag()); 232 Record.push_back(D->isFixed()); 233 Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record); 234 235 if (!D->hasAttrs() && 236 !D->isImplicit() && 237 !D->isUsed(false) && 238 !D->hasExtInfo() && 239 !D->getPreviousDeclaration() && 240 !D->isInvalidDecl() && 241 !D->isReferenced() && 242 !D->isTopLevelDeclInObjCContainer() && 243 D->getAccess() == AS_none && 244 !D->isModulePrivate() && 245 !CXXRecordDecl::classofKind(D->getKind()) && 246 !D->getIntegerTypeSourceInfo() && 247 D->getDeclName().getNameKind() == DeclarationName::Identifier) 248 AbbrevToUse = Writer.getDeclEnumAbbrev(); 249 250 Code = serialization::DECL_ENUM; 251} 252 253void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) { 254 VisitTagDecl(D); 255 Record.push_back(D->hasFlexibleArrayMember()); 256 Record.push_back(D->isAnonymousStructOrUnion()); 257 Record.push_back(D->hasObjectMember()); 258 259 if (!D->hasAttrs() && 260 !D->isImplicit() && 261 !D->isUsed(false) && 262 !D->hasExtInfo() && 263 !D->getPreviousDeclaration() && 264 !D->isInvalidDecl() && 265 !D->isReferenced() && 266 !D->isTopLevelDeclInObjCContainer() && 267 D->getAccess() == AS_none && 268 !D->isModulePrivate() && 269 !CXXRecordDecl::classofKind(D->getKind()) && 270 D->getDeclName().getNameKind() == DeclarationName::Identifier) 271 AbbrevToUse = Writer.getDeclRecordAbbrev(); 272 273 Code = serialization::DECL_RECORD; 274} 275 276void ASTDeclWriter::VisitValueDecl(ValueDecl *D) { 277 VisitNamedDecl(D); 278 Writer.AddTypeRef(D->getType(), Record); 279} 280 281void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { 282 VisitValueDecl(D); 283 Record.push_back(D->getInitExpr()? 1 : 0); 284 if (D->getInitExpr()) 285 Writer.AddStmt(D->getInitExpr()); 286 Writer.AddAPSInt(D->getInitVal(), Record); 287 288 Code = serialization::DECL_ENUM_CONSTANT; 289} 290 291void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { 292 VisitValueDecl(D); 293 Writer.AddSourceLocation(D->getInnerLocStart(), Record); 294 Record.push_back(D->hasExtInfo()); 295 if (D->hasExtInfo()) 296 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 297} 298 299void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) { 300 VisitRedeclarable(D); 301 VisitDeclaratorDecl(D); 302 303 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 304 Record.push_back(D->getIdentifierNamespace()); 305 306 // FunctionDecl's body is handled last at ASTWriterDecl::Visit, 307 // after everything else is written. 308 309 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 310 Record.push_back(D->getStorageClassAsWritten()); 311 Record.push_back(D->IsInline); 312 Record.push_back(D->isInlineSpecified()); 313 Record.push_back(D->isVirtualAsWritten()); 314 Record.push_back(D->isPure()); 315 Record.push_back(D->hasInheritedPrototype()); 316 Record.push_back(D->hasWrittenPrototype()); 317 Record.push_back(D->isDeletedAsWritten()); 318 Record.push_back(D->isTrivial()); 319 Record.push_back(D->isDefaulted()); 320 Record.push_back(D->isExplicitlyDefaulted()); 321 Record.push_back(D->hasImplicitReturnZero()); 322 Record.push_back(D->isConstexpr()); 323 Writer.AddSourceLocation(D->getLocEnd(), Record); 324 325 Record.push_back(D->getTemplatedKind()); 326 switch (D->getTemplatedKind()) { 327 default: llvm_unreachable("Unhandled TemplatedKind!"); 328 case FunctionDecl::TK_NonTemplate: 329 break; 330 case FunctionDecl::TK_FunctionTemplate: 331 Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record); 332 break; 333 case FunctionDecl::TK_MemberSpecialization: { 334 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); 335 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record); 336 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 337 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record); 338 break; 339 } 340 case FunctionDecl::TK_FunctionTemplateSpecialization: { 341 FunctionTemplateSpecializationInfo * 342 FTSInfo = D->getTemplateSpecializationInfo(); 343 Writer.AddDeclRef(FTSInfo->getTemplate(), Record); 344 Record.push_back(FTSInfo->getTemplateSpecializationKind()); 345 346 // Template arguments. 347 Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record); 348 349 // Template args as written. 350 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0); 351 if (FTSInfo->TemplateArgumentsAsWritten) { 352 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs); 353 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs; 354 i!=e; ++i) 355 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i], 356 Record); 357 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc, 358 Record); 359 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc, 360 Record); 361 } 362 363 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record); 364 365 if (D->isCanonicalDecl()) { 366 // Write the template that contains the specializations set. We will 367 // add a FunctionTemplateSpecializationInfo to it when reading. 368 Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record); 369 } 370 break; 371 } 372 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { 373 DependentFunctionTemplateSpecializationInfo * 374 DFTSInfo = D->getDependentSpecializationInfo(); 375 376 // Templates. 377 Record.push_back(DFTSInfo->getNumTemplates()); 378 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) 379 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record); 380 381 // Templates args. 382 Record.push_back(DFTSInfo->getNumTemplateArgs()); 383 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) 384 Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record); 385 Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record); 386 Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record); 387 break; 388 } 389 } 390 391 Record.push_back(D->param_size()); 392 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 393 P != PEnd; ++P) 394 Writer.AddDeclRef(*P, Record); 395 Code = serialization::DECL_FUNCTION; 396} 397 398void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { 399 VisitNamedDecl(D); 400 // FIXME: convert to LazyStmtPtr? 401 // Unlike C/C++, method bodies will never be in header files. 402 bool HasBodyStuff = D->getBody() != 0 || 403 D->getSelfDecl() != 0 || D->getCmdDecl() != 0; 404 Record.push_back(HasBodyStuff); 405 if (HasBodyStuff) { 406 Writer.AddStmt(D->getBody()); 407 Writer.AddDeclRef(D->getSelfDecl(), Record); 408 Writer.AddDeclRef(D->getCmdDecl(), Record); 409 } 410 Record.push_back(D->isInstanceMethod()); 411 Record.push_back(D->isVariadic()); 412 Record.push_back(D->isSynthesized()); 413 Record.push_back(D->isDefined()); 414 415 Record.push_back(D->IsRedeclaration); 416 Record.push_back(D->HasRedeclaration); 417 if (D->HasRedeclaration) { 418 assert(Context.getObjCMethodRedeclaration(D)); 419 Writer.AddDeclRef(Context.getObjCMethodRedeclaration(D), Record); 420 } 421 422 // FIXME: stable encoding for @required/@optional 423 Record.push_back(D->getImplementationControl()); 424 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway 425 Record.push_back(D->getObjCDeclQualifier()); 426 Record.push_back(D->hasRelatedResultType()); 427 Writer.AddTypeRef(D->getResultType(), Record); 428 Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record); 429 Writer.AddSourceLocation(D->getLocEnd(), Record); 430 Record.push_back(D->param_size()); 431 for (ObjCMethodDecl::param_iterator P = D->param_begin(), 432 PEnd = D->param_end(); P != PEnd; ++P) 433 Writer.AddDeclRef(*P, Record); 434 435 Record.push_back(D->SelLocsKind); 436 unsigned NumStoredSelLocs = D->getNumStoredSelLocs(); 437 SourceLocation *SelLocs = D->getStoredSelLocs(); 438 Record.push_back(NumStoredSelLocs); 439 for (unsigned i = 0; i != NumStoredSelLocs; ++i) 440 Writer.AddSourceLocation(SelLocs[i], Record); 441 442 Code = serialization::DECL_OBJC_METHOD; 443} 444 445void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { 446 VisitNamedDecl(D); 447 Writer.AddSourceLocation(D->getAtStartLoc(), Record); 448 Writer.AddSourceRange(D->getAtEndRange(), Record); 449 // Abstract class (no need to define a stable serialization::DECL code). 450} 451 452void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 453 VisitRedeclarable(D); 454 VisitObjCContainerDecl(D); 455 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 456 457 ObjCInterfaceDecl *Def = D->getDefinition(); 458 Writer.AddDeclRef(Def, Record); 459 460 if (D == Def) { 461 // Write the DefinitionData 462 ObjCInterfaceDecl::DefinitionData &Data = D->data(); 463 464 Writer.AddDeclRef(D->getSuperClass(), Record); 465 Writer.AddSourceLocation(D->getSuperClassLoc(), Record); 466 Writer.AddSourceLocation(D->getEndOfDefinitionLoc(), Record); 467 468 // Write out the protocols that are directly referenced by the @interface. 469 Record.push_back(Data.ReferencedProtocols.size()); 470 for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(), 471 PEnd = D->protocol_end(); 472 P != PEnd; ++P) 473 Writer.AddDeclRef(*P, Record); 474 for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 475 PLEnd = D->protocol_loc_end(); 476 PL != PLEnd; ++PL) 477 Writer.AddSourceLocation(*PL, Record); 478 479 // Write out the protocols that are transitively referenced. 480 Record.push_back(Data.AllReferencedProtocols.size()); 481 for (ObjCList<ObjCProtocolDecl>::iterator 482 P = Data.AllReferencedProtocols.begin(), 483 PEnd = Data.AllReferencedProtocols.end(); 484 P != PEnd; ++P) 485 Writer.AddDeclRef(*P, Record); 486 487 // Write out the ivars. 488 Record.push_back(D->ivar_size()); 489 for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(), 490 IEnd = D->ivar_end(); I != IEnd; ++I) 491 Writer.AddDeclRef(*I, Record); 492 493 Writer.AddDeclRef(D->getCategoryList(), Record); 494 } 495 496 Code = serialization::DECL_OBJC_INTERFACE; 497} 498 499void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { 500 VisitFieldDecl(D); 501 // FIXME: stable encoding for @public/@private/@protected/@package 502 Record.push_back(D->getAccessControl()); 503 Record.push_back(D->getSynthesize()); 504 505 if (!D->hasAttrs() && 506 !D->isImplicit() && 507 !D->isUsed(false) && 508 !D->isInvalidDecl() && 509 !D->isReferenced() && 510 !D->isModulePrivate() && 511 !D->getBitWidth() && 512 !D->hasExtInfo() && 513 D->getDeclName()) 514 AbbrevToUse = Writer.getDeclObjCIvarAbbrev(); 515 516 Code = serialization::DECL_OBJC_IVAR; 517} 518 519void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { 520 VisitRedeclarable(D); 521 VisitObjCContainerDecl(D); 522 523 ObjCProtocolDecl *Def = D->getDefinition(); 524 Writer.AddDeclRef(Def, Record); 525 526 if (D == Def) { 527 Record.push_back(D->protocol_size()); 528 for (ObjCProtocolDecl::protocol_iterator 529 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 530 Writer.AddDeclRef(*I, Record); 531 for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 532 PLEnd = D->protocol_loc_end(); 533 PL != PLEnd; ++PL) 534 Writer.AddSourceLocation(*PL, Record); 535 } 536 537 Code = serialization::DECL_OBJC_PROTOCOL; 538} 539 540void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { 541 VisitFieldDecl(D); 542 Code = serialization::DECL_OBJC_AT_DEFS_FIELD; 543} 544 545void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { 546 VisitObjCContainerDecl(D); 547 Writer.AddDeclRef(D->getClassInterface(), Record); 548 Record.push_back(D->protocol_size()); 549 for (ObjCCategoryDecl::protocol_iterator 550 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 551 Writer.AddDeclRef(*I, Record); 552 for (ObjCCategoryDecl::protocol_loc_iterator 553 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); 554 PL != PLEnd; ++PL) 555 Writer.AddSourceLocation(*PL, Record); 556 Writer.AddDeclRef(D->getNextClassCategory(), Record); 557 Record.push_back(D->hasSynthBitfield()); 558 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); 559 Code = serialization::DECL_OBJC_CATEGORY; 560} 561 562void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { 563 VisitNamedDecl(D); 564 Writer.AddDeclRef(D->getClassInterface(), Record); 565 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS; 566} 567 568void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { 569 VisitNamedDecl(D); 570 Writer.AddSourceLocation(D->getAtLoc(), Record); 571 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 572 // FIXME: stable encoding 573 Record.push_back((unsigned)D->getPropertyAttributes()); 574 Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); 575 // FIXME: stable encoding 576 Record.push_back((unsigned)D->getPropertyImplementation()); 577 Writer.AddDeclarationName(D->getGetterName(), Record); 578 Writer.AddDeclarationName(D->getSetterName(), Record); 579 Writer.AddDeclRef(D->getGetterMethodDecl(), Record); 580 Writer.AddDeclRef(D->getSetterMethodDecl(), Record); 581 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 582 Code = serialization::DECL_OBJC_PROPERTY; 583} 584 585void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { 586 VisitObjCContainerDecl(D); 587 Writer.AddDeclRef(D->getClassInterface(), Record); 588 // Abstract class (no need to define a stable serialization::DECL code). 589} 590 591void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 592 VisitObjCImplDecl(D); 593 Writer.AddIdentifierRef(D->getIdentifier(), Record); 594 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); 595 Code = serialization::DECL_OBJC_CATEGORY_IMPL; 596} 597 598void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 599 VisitObjCImplDecl(D); 600 Writer.AddDeclRef(D->getSuperClass(), Record); 601 Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers, 602 Record); 603 Record.push_back(D->hasSynthBitfield()); 604 Code = serialization::DECL_OBJC_IMPLEMENTATION; 605} 606 607void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { 608 VisitDecl(D); 609 Writer.AddSourceLocation(D->getLocStart(), Record); 610 Writer.AddDeclRef(D->getPropertyDecl(), Record); 611 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 612 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record); 613 Writer.AddStmt(D->getGetterCXXConstructor()); 614 Writer.AddStmt(D->getSetterCXXAssignment()); 615 Code = serialization::DECL_OBJC_PROPERTY_IMPL; 616} 617 618void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) { 619 VisitDeclaratorDecl(D); 620 Record.push_back(D->isMutable()); 621 Record.push_back(D->getBitWidth()? 1 : D->hasInClassInitializer() ? 2 : 0); 622 if (D->getBitWidth()) 623 Writer.AddStmt(D->getBitWidth()); 624 else if (D->hasInClassInitializer()) 625 Writer.AddStmt(D->getInClassInitializer()); 626 if (!D->getDeclName()) 627 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record); 628 629 if (!D->hasAttrs() && 630 !D->isImplicit() && 631 !D->isUsed(false) && 632 !D->isInvalidDecl() && 633 !D->isReferenced() && 634 !D->isTopLevelDeclInObjCContainer() && 635 !D->isModulePrivate() && 636 !D->getBitWidth() && 637 !D->hasInClassInitializer() && 638 !D->hasExtInfo() && 639 !ObjCIvarDecl::classofKind(D->getKind()) && 640 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) && 641 D->getDeclName()) 642 AbbrevToUse = Writer.getDeclFieldAbbrev(); 643 644 Code = serialization::DECL_FIELD; 645} 646 647void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 648 VisitValueDecl(D); 649 Record.push_back(D->getChainingSize()); 650 651 for (IndirectFieldDecl::chain_iterator 652 P = D->chain_begin(), 653 PEnd = D->chain_end(); P != PEnd; ++P) 654 Writer.AddDeclRef(*P, Record); 655 Code = serialization::DECL_INDIRECTFIELD; 656} 657 658void ASTDeclWriter::VisitVarDecl(VarDecl *D) { 659 VisitRedeclarable(D); 660 VisitDeclaratorDecl(D); 661 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 662 Record.push_back(D->getStorageClassAsWritten()); 663 Record.push_back(D->isThreadSpecified()); 664 Record.push_back(D->hasCXXDirectInitializer()); 665 Record.push_back(D->isExceptionVariable()); 666 Record.push_back(D->isNRVOVariable()); 667 Record.push_back(D->isCXXForRangeDecl()); 668 Record.push_back(D->isARCPseudoStrong()); 669 if (D->getInit()) { 670 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2)); 671 Writer.AddStmt(D->getInit()); 672 } else { 673 Record.push_back(0); 674 } 675 676 MemberSpecializationInfo *SpecInfo 677 = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0; 678 Record.push_back(SpecInfo != 0); 679 if (SpecInfo) { 680 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record); 681 Record.push_back(SpecInfo->getTemplateSpecializationKind()); 682 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record); 683 } 684 685 if (!D->hasAttrs() && 686 !D->isImplicit() && 687 !D->isUsed(false) && 688 !D->isInvalidDecl() && 689 !D->isReferenced() && 690 !D->isTopLevelDeclInObjCContainer() && 691 D->getAccess() == AS_none && 692 !D->isModulePrivate() && 693 D->getDeclName().getNameKind() == DeclarationName::Identifier && 694 !D->hasExtInfo() && 695 !D->getPreviousDeclaration() && 696 !D->hasCXXDirectInitializer() && 697 D->getInit() == 0 && 698 !isa<ParmVarDecl>(D) && 699 !SpecInfo) 700 AbbrevToUse = Writer.getDeclVarAbbrev(); 701 702 Code = serialization::DECL_VAR; 703} 704 705void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { 706 VisitVarDecl(D); 707 Code = serialization::DECL_IMPLICIT_PARAM; 708} 709 710void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { 711 VisitVarDecl(D); 712 Record.push_back(D->isObjCMethodParameter()); 713 Record.push_back(D->getFunctionScopeDepth()); 714 Record.push_back(D->getFunctionScopeIndex()); 715 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding 716 Record.push_back(D->isKNRPromoted()); 717 Record.push_back(D->hasInheritedDefaultArg()); 718 Record.push_back(D->hasUninstantiatedDefaultArg()); 719 if (D->hasUninstantiatedDefaultArg()) 720 Writer.AddStmt(D->getUninstantiatedDefaultArg()); 721 Code = serialization::DECL_PARM_VAR; 722 723 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl 724 725 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here 726 // we dynamically check for the properties that we optimize for, but don't 727 // know are true of all PARM_VAR_DECLs. 728 if (!D->hasAttrs() && 729 !D->hasExtInfo() && 730 !D->isImplicit() && 731 !D->isUsed(false) && 732 D->getAccess() == AS_none && 733 !D->isModulePrivate() && 734 D->getStorageClass() == 0 && 735 !D->hasCXXDirectInitializer() && // Can params have this ever? 736 D->getFunctionScopeDepth() == 0 && 737 D->getObjCDeclQualifier() == 0 && 738 !D->isKNRPromoted() && 739 !D->hasInheritedDefaultArg() && 740 D->getInit() == 0 && 741 !D->hasUninstantiatedDefaultArg()) // No default expr. 742 AbbrevToUse = Writer.getDeclParmVarAbbrev(); 743 744 // Check things we know are true of *every* PARM_VAR_DECL, which is more than 745 // just us assuming it. 746 assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls"); 747 assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread"); 748 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); 749 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); 750 assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl"); 751 assert(!D->isStaticDataMember() && 752 "PARM_VAR_DECL can't be static data member"); 753} 754 755void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 756 VisitDecl(D); 757 Writer.AddStmt(D->getAsmString()); 758 Writer.AddSourceLocation(D->getRParenLoc(), Record); 759 Code = serialization::DECL_FILE_SCOPE_ASM; 760} 761 762void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { 763 VisitDecl(D); 764 Writer.AddStmt(D->getBody()); 765 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record); 766 Record.push_back(D->param_size()); 767 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 768 P != PEnd; ++P) 769 Writer.AddDeclRef(*P, Record); 770 Record.push_back(D->capturesCXXThis()); 771 Record.push_back(D->getNumCaptures()); 772 for (BlockDecl::capture_iterator 773 i = D->capture_begin(), e = D->capture_end(); i != e; ++i) { 774 const BlockDecl::Capture &capture = *i; 775 Writer.AddDeclRef(capture.getVariable(), Record); 776 777 unsigned flags = 0; 778 if (capture.isByRef()) flags |= 1; 779 if (capture.isNested()) flags |= 2; 780 if (capture.hasCopyExpr()) flags |= 4; 781 Record.push_back(flags); 782 783 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr()); 784 } 785 786 Code = serialization::DECL_BLOCK; 787} 788 789void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 790 VisitDecl(D); 791 Record.push_back(D->getLanguage()); 792 Writer.AddSourceLocation(D->getExternLoc(), Record); 793 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 794 Code = serialization::DECL_LINKAGE_SPEC; 795} 796 797void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) { 798 VisitNamedDecl(D); 799 Writer.AddSourceLocation(D->getLocStart(), Record); 800 Code = serialization::DECL_LABEL; 801} 802 803 804void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { 805 VisitNamedDecl(D); 806 Record.push_back(D->isInline()); 807 Writer.AddSourceLocation(D->getLocStart(), Record); 808 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 809 Writer.AddDeclRef(D->getNextNamespace(), Record); 810 811 // Only write one reference--original or anonymous 812 Record.push_back(D->isOriginalNamespace()); 813 if (D->isOriginalNamespace()) 814 Writer.AddDeclRef(D->getAnonymousNamespace(), Record); 815 else 816 Writer.AddDeclRef(D->getOriginalNamespace(), Record); 817 Code = serialization::DECL_NAMESPACE; 818 819 if (Writer.hasChain() && !D->isOriginalNamespace() && 820 D->getOriginalNamespace()->isFromASTFile()) { 821 NamespaceDecl *NS = D->getOriginalNamespace(); 822 Writer.AddUpdatedDeclContext(NS); 823 824 // Make sure all visible decls are written. They will be recorded later. 825 NS->lookup(DeclarationName()); 826 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(NS->getLookupPtr()); 827 if (Map) { 828 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end(); 829 D != DEnd; ++D) { 830 DeclContext::lookup_result Result = D->second.getLookupResult(); 831 while (Result.first != Result.second) { 832 Writer.GetDeclRef(*Result.first); 833 ++Result.first; 834 } 835 } 836 } 837 } 838 839 if (Writer.hasChain() && D->isAnonymousNamespace() && !D->getNextNamespace()){ 840 // This is a most recent reopening of the anonymous namespace. If its parent 841 // is in a previous PCH (or is the TU), mark that parent for update, because 842 // the original namespace always points to the latest re-opening of its 843 // anonymous namespace. 844 Decl *Parent = cast<Decl>( 845 D->getParent()->getRedeclContext()->getPrimaryContext()); 846 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) { 847 ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent]; 848 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE); 849 Writer.AddDeclRef(D, Record); 850 } 851 } 852} 853 854void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 855 VisitNamedDecl(D); 856 Writer.AddSourceLocation(D->getNamespaceLoc(), Record); 857 Writer.AddSourceLocation(D->getTargetNameLoc(), Record); 858 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 859 Writer.AddDeclRef(D->getNamespace(), Record); 860 Code = serialization::DECL_NAMESPACE_ALIAS; 861} 862 863void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) { 864 VisitNamedDecl(D); 865 Writer.AddSourceLocation(D->getUsingLocation(), Record); 866 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 867 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 868 Writer.AddDeclRef(D->FirstUsingShadow, Record); 869 Record.push_back(D->isTypeName()); 870 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record); 871 Code = serialization::DECL_USING; 872} 873 874void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { 875 VisitNamedDecl(D); 876 Writer.AddDeclRef(D->getTargetDecl(), Record); 877 Writer.AddDeclRef(D->UsingOrNextShadow, Record); 878 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record); 879 Code = serialization::DECL_USING_SHADOW; 880} 881 882void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 883 VisitNamedDecl(D); 884 Writer.AddSourceLocation(D->getUsingLoc(), Record); 885 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record); 886 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 887 Writer.AddDeclRef(D->getNominatedNamespace(), Record); 888 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record); 889 Code = serialization::DECL_USING_DIRECTIVE; 890} 891 892void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 893 VisitValueDecl(D); 894 Writer.AddSourceLocation(D->getUsingLoc(), Record); 895 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 896 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 897 Code = serialization::DECL_UNRESOLVED_USING_VALUE; 898} 899 900void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl( 901 UnresolvedUsingTypenameDecl *D) { 902 VisitTypeDecl(D); 903 Writer.AddSourceLocation(D->getTypenameLoc(), Record); 904 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 905 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME; 906} 907 908void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { 909 VisitRecordDecl(D); 910 911 CXXRecordDecl *DefinitionDecl = 0; 912 if (D->DefinitionData) 913 DefinitionDecl = D->DefinitionData->Definition; 914 Writer.AddDeclRef(DefinitionDecl, Record); 915 if (D == DefinitionDecl) 916 Writer.AddCXXDefinitionData(D, Record); 917 918 enum { 919 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization 920 }; 921 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { 922 Record.push_back(CXXRecTemplate); 923 Writer.AddDeclRef(TemplD, Record); 924 } else if (MemberSpecializationInfo *MSInfo 925 = D->getMemberSpecializationInfo()) { 926 Record.push_back(CXXRecMemberSpecialization); 927 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record); 928 Record.push_back(MSInfo->getTemplateSpecializationKind()); 929 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record); 930 } else { 931 Record.push_back(CXXRecNotTemplate); 932 } 933 934 // Store the key function to avoid deserializing every method so we can 935 // compute it. 936 if (D->IsCompleteDefinition) 937 Writer.AddDeclRef(Context.getKeyFunction(D), Record); 938 939 Code = serialization::DECL_CXX_RECORD; 940} 941 942void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { 943 VisitFunctionDecl(D); 944 Record.push_back(D->size_overridden_methods()); 945 for (CXXMethodDecl::method_iterator 946 I = D->begin_overridden_methods(), E = D->end_overridden_methods(); 947 I != E; ++I) 948 Writer.AddDeclRef(*I, Record); 949 Code = serialization::DECL_CXX_METHOD; 950} 951 952void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 953 VisitCXXMethodDecl(D); 954 955 Record.push_back(D->IsExplicitSpecified); 956 Record.push_back(D->ImplicitlyDefined); 957 Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers, 958 Record); 959 960 Code = serialization::DECL_CXX_CONSTRUCTOR; 961} 962 963void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 964 VisitCXXMethodDecl(D); 965 966 Record.push_back(D->ImplicitlyDefined); 967 Writer.AddDeclRef(D->OperatorDelete, Record); 968 969 Code = serialization::DECL_CXX_DESTRUCTOR; 970} 971 972void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { 973 VisitCXXMethodDecl(D); 974 Record.push_back(D->IsExplicitSpecified); 975 Code = serialization::DECL_CXX_CONVERSION; 976} 977 978void ASTDeclWriter::VisitImportDecl(ImportDecl *D) { 979 VisitDecl(D); 980 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs(); 981 Record.push_back(!IdentifierLocs.empty()); 982 if (IdentifierLocs.empty()) { 983 Writer.AddSourceLocation(D->getLocEnd(), Record); 984 Record.push_back(1); 985 } else { 986 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I) 987 Writer.AddSourceLocation(IdentifierLocs[I], Record); 988 Record.push_back(IdentifierLocs.size()); 989 } 990 // Note: the number of source locations must always be the last element in 991 // the record. 992 Code = serialization::DECL_IMPORT; 993} 994 995void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { 996 VisitDecl(D); 997 Writer.AddSourceLocation(D->getColonLoc(), Record); 998 Code = serialization::DECL_ACCESS_SPEC; 999} 1000 1001void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) { 1002 VisitDecl(D); 1003 Record.push_back(D->Friend.is<TypeSourceInfo*>()); 1004 if (D->Friend.is<TypeSourceInfo*>()) 1005 Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record); 1006 else 1007 Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record); 1008 Writer.AddDeclRef(D->getNextFriend(), Record); 1009 Record.push_back(D->UnsupportedFriend); 1010 Writer.AddSourceLocation(D->FriendLoc, Record); 1011 Code = serialization::DECL_FRIEND; 1012} 1013 1014void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { 1015 VisitDecl(D); 1016 Record.push_back(D->getNumTemplateParameters()); 1017 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) 1018 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record); 1019 Record.push_back(D->getFriendDecl() != 0); 1020 if (D->getFriendDecl()) 1021 Writer.AddDeclRef(D->getFriendDecl(), Record); 1022 else 1023 Writer.AddTypeSourceInfo(D->getFriendType(), Record); 1024 Writer.AddSourceLocation(D->getFriendLoc(), Record); 1025 Code = serialization::DECL_FRIEND_TEMPLATE; 1026} 1027 1028void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) { 1029 VisitNamedDecl(D); 1030 1031 Writer.AddDeclRef(D->getTemplatedDecl(), Record); 1032 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1033} 1034 1035void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { 1036 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that 1037 // getCommonPtr() can be used while this is still initializing. 1038 enum { FirstDeclaration, FirstInFile, PointsToPrevious }; 1039 RedeclarableTemplateDecl *Prev = D->getPreviousDeclaration(); 1040 RedeclarableTemplateDecl *First = 0; 1041 if (!Prev) { 1042 Record.push_back(FirstDeclaration); 1043 1044 // This declaration owns the 'common' pointer, so serialize that data now. 1045 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record); 1046 if (D->getInstantiatedFromMemberTemplate()) 1047 Record.push_back(D->isMemberSpecialization()); 1048 } else { 1049 First = D->getFirstDeclaration(); 1050 Record.push_back(Prev->isFromASTFile()? FirstInFile : PointsToPrevious); 1051 Writer.AddDeclRef(First, Record); 1052 Writer.AddDeclRef(Prev, Record); 1053 } 1054 1055 if (D->getMostRecentDeclaration() != D && (!Prev || Prev->isFromASTFile())) { 1056 if (!First) 1057 First = D->getFirstDeclaration(); 1058 1059 // Capture the set of redeclarations in this file. 1060 LocalRedeclarationsInfo LocalInfo = { 1061 Writer.GetDeclRef(First), 1062 Writer.GetDeclRef(D), 1063 Writer.GetDeclRef(D->getMostRecentDeclaration()) 1064 }; 1065 Writer.LocalRedeclarations.push_back(LocalInfo); 1066 } 1067 1068 VisitTemplateDecl(D); 1069 Record.push_back(D->getIdentifierNamespace()); 1070} 1071 1072void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 1073 VisitRedeclarableTemplateDecl(D); 1074 1075 if (D->getPreviousDeclaration() == 0) { 1076 typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy; 1077 CTSDSetTy &CTSDSet = D->getSpecializations(); 1078 Record.push_back(CTSDSet.size()); 1079 for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) { 1080 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1081 Writer.AddDeclRef(&*I, Record); 1082 } 1083 1084 typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy; 1085 CTPSDSetTy &CTPSDSet = D->getPartialSpecializations(); 1086 Record.push_back(CTPSDSet.size()); 1087 for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) { 1088 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1089 Writer.AddDeclRef(&*I, Record); 1090 } 1091 1092 // InjectedClassNameType is computed, no need to write it. 1093 } 1094 Code = serialization::DECL_CLASS_TEMPLATE; 1095} 1096 1097void ASTDeclWriter::VisitClassTemplateSpecializationDecl( 1098 ClassTemplateSpecializationDecl *D) { 1099 VisitCXXRecordDecl(D); 1100 1101 llvm::PointerUnion<ClassTemplateDecl *, 1102 ClassTemplatePartialSpecializationDecl *> InstFrom 1103 = D->getSpecializedTemplateOrPartial(); 1104 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) { 1105 Writer.AddDeclRef(InstFromD, Record); 1106 } else { 1107 Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(), 1108 Record); 1109 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record); 1110 } 1111 1112 // Explicit info. 1113 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record); 1114 if (D->getTypeAsWritten()) { 1115 Writer.AddSourceLocation(D->getExternLoc(), Record); 1116 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record); 1117 } 1118 1119 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record); 1120 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record); 1121 Record.push_back(D->getSpecializationKind()); 1122 1123 if (D->isCanonicalDecl()) { 1124 // When reading, we'll add it to the folding set of the following template. 1125 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record); 1126 } 1127 1128 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION; 1129} 1130 1131void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl( 1132 ClassTemplatePartialSpecializationDecl *D) { 1133 VisitClassTemplateSpecializationDecl(D); 1134 1135 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1136 1137 Record.push_back(D->getNumTemplateArgsAsWritten()); 1138 for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i) 1139 Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record); 1140 1141 Record.push_back(D->getSequenceNumber()); 1142 1143 // These are read/set from/to the first declaration. 1144 if (D->getPreviousDeclaration() == 0) { 1145 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record); 1146 Record.push_back(D->isMemberSpecialization()); 1147 } 1148 1149 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; 1150} 1151 1152void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl( 1153 ClassScopeFunctionSpecializationDecl *D) { 1154 VisitDecl(D); 1155 Writer.AddDeclRef(D->getSpecialization(), Record); 1156 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION; 1157} 1158 1159 1160void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 1161 VisitRedeclarableTemplateDecl(D); 1162 1163 if (D->getPreviousDeclaration() == 0) { 1164 // This FunctionTemplateDecl owns the CommonPtr; write it. 1165 1166 // Write the function specialization declarations. 1167 Record.push_back(D->getSpecializations().size()); 1168 for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator 1169 I = D->getSpecializations().begin(), 1170 E = D->getSpecializations().end() ; I != E; ++I) { 1171 assert(I->Function->isCanonicalDecl() && 1172 "Expected only canonical decls in set"); 1173 Writer.AddDeclRef(I->Function, Record); 1174 } 1175 } 1176 Code = serialization::DECL_FUNCTION_TEMPLATE; 1177} 1178 1179void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 1180 VisitTypeDecl(D); 1181 1182 Record.push_back(D->wasDeclaredWithTypename()); 1183 Record.push_back(D->defaultArgumentWasInherited()); 1184 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record); 1185 1186 Code = serialization::DECL_TEMPLATE_TYPE_PARM; 1187} 1188 1189void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 1190 // For an expanded parameter pack, record the number of expansion types here 1191 // so that it's easier for 1192 if (D->isExpandedParameterPack()) 1193 Record.push_back(D->getNumExpansionTypes()); 1194 1195 VisitDeclaratorDecl(D); 1196 // TemplateParmPosition. 1197 Record.push_back(D->getDepth()); 1198 Record.push_back(D->getPosition()); 1199 1200 if (D->isExpandedParameterPack()) { 1201 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 1202 Writer.AddTypeRef(D->getExpansionType(I), Record); 1203 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record); 1204 } 1205 1206 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK; 1207 } else { 1208 // Rest of NonTypeTemplateParmDecl. 1209 Record.push_back(D->isParameterPack()); 1210 Record.push_back(D->getDefaultArgument() != 0); 1211 if (D->getDefaultArgument()) { 1212 Writer.AddStmt(D->getDefaultArgument()); 1213 Record.push_back(D->defaultArgumentWasInherited()); 1214 } 1215 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM; 1216 } 1217} 1218 1219void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 1220 VisitTemplateDecl(D); 1221 // TemplateParmPosition. 1222 Record.push_back(D->getDepth()); 1223 Record.push_back(D->getPosition()); 1224 // Rest of TemplateTemplateParmDecl. 1225 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record); 1226 Record.push_back(D->defaultArgumentWasInherited()); 1227 Record.push_back(D->isParameterPack()); 1228 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM; 1229} 1230 1231void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1232 VisitRedeclarableTemplateDecl(D); 1233 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE; 1234} 1235 1236void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { 1237 VisitDecl(D); 1238 Writer.AddStmt(D->getAssertExpr()); 1239 Writer.AddStmt(D->getMessage()); 1240 Writer.AddSourceLocation(D->getRParenLoc(), Record); 1241 Code = serialization::DECL_STATIC_ASSERT; 1242} 1243 1244/// \brief Emit the DeclContext part of a declaration context decl. 1245/// 1246/// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL 1247/// block for this declaration context is stored. May be 0 to indicate 1248/// that there are no declarations stored within this context. 1249/// 1250/// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE 1251/// block for this declaration context is stored. May be 0 to indicate 1252/// that there are no declarations visible from this context. Note 1253/// that this value will not be emitted for non-primary declaration 1254/// contexts. 1255void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 1256 uint64_t VisibleOffset) { 1257 Record.push_back(LexicalOffset); 1258 Record.push_back(VisibleOffset); 1259} 1260 1261template <typename T> 1262void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) { 1263 enum { FirstDeclaration = 0, FirstInFile, PointsToPrevious }; 1264 T *Prev = D->getPreviousDeclaration(); 1265 T *First = D->getFirstDeclaration(); 1266 1267 if (!Prev) { 1268 Record.push_back(FirstDeclaration); 1269 } else { 1270 Record.push_back(Prev->isFromASTFile()? FirstInFile : PointsToPrevious); 1271 Writer.AddDeclRef(First, Record); 1272 Writer.AddDeclRef(D->getPreviousDeclaration(), Record); 1273 } 1274 1275 if (D->RedeclLink.getPointer() != D && (!Prev || Prev->isFromASTFile())) { 1276 // Capture the set of redeclarations in this file. 1277 LocalRedeclarationsInfo LocalInfo = { 1278 Writer.GetDeclRef(First), 1279 Writer.GetDeclRef(static_cast<T*>(D)), 1280 Writer.GetDeclRef(D->getMostRecentDeclaration()) 1281 }; 1282 Writer.LocalRedeclarations.push_back(LocalInfo); 1283 } 1284} 1285 1286//===----------------------------------------------------------------------===// 1287// ASTWriter Implementation 1288//===----------------------------------------------------------------------===// 1289 1290void ASTWriter::WriteDeclsBlockAbbrevs() { 1291 using namespace llvm; 1292 1293 BitCodeAbbrev *Abv; 1294 1295 // Abbreviation for DECL_FIELD 1296 Abv = new BitCodeAbbrev(); 1297 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD)); 1298 // Decl 1299 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1300 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1301 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1302 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1303 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1304 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1305 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1306 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1307 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1308 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1309 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1310 // NamedDecl 1311 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1312 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1313 // ValueDecl 1314 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1315 // DeclaratorDecl 1316 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1317 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1318 // FieldDecl 1319 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1320 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1321 // Type Source Info 1322 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1323 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1324 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1325 DeclFieldAbbrev = Stream.EmitAbbrev(Abv); 1326 1327 // Abbreviation for DECL_OBJC_IVAR 1328 Abv = new BitCodeAbbrev(); 1329 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR)); 1330 // Decl 1331 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1332 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1333 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1334 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1335 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1336 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1337 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1338 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1339 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1340 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1341 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1342 // NamedDecl 1343 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1344 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1345 // ValueDecl 1346 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1347 // DeclaratorDecl 1348 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1349 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1350 // FieldDecl 1351 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1352 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1353 // ObjC Ivar 1354 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl 1355 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize 1356 // Type Source Info 1357 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1358 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1359 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1360 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv); 1361 1362 // Abbreviation for DECL_ENUM 1363 Abv = new BitCodeAbbrev(); 1364 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM)); 1365 // Redeclarable 1366 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1367 // Decl 1368 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1369 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1370 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1371 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1372 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1373 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1374 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1375 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1376 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1377 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1378 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1379 // NamedDecl 1380 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1381 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1382 // TypeDecl 1383 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1384 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1385 // TagDecl 1386 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1387 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1388 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1389 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1390 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1391 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1392 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1393 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1394 // EnumDecl 1395 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef 1396 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType 1397 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType 1398 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits 1399 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits 1400 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped 1401 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag 1402 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed 1403 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum 1404 // DC 1405 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1406 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1407 DeclEnumAbbrev = Stream.EmitAbbrev(Abv); 1408 1409 // Abbreviation for DECL_RECORD 1410 Abv = new BitCodeAbbrev(); 1411 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD)); 1412 // Redeclarable 1413 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1414 // Decl 1415 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1416 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1417 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1418 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1419 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1420 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1421 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1422 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1423 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1424 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1425 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1426 // NamedDecl 1427 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1428 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1429 // TypeDecl 1430 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1431 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1432 // TagDecl 1433 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1434 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1435 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1436 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1437 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1438 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1439 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1440 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1441 // RecordDecl 1442 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember 1443 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion 1444 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember 1445 // DC 1446 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1447 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1448 DeclRecordAbbrev = Stream.EmitAbbrev(Abv); 1449 1450 // Abbreviation for DECL_PARM_VAR 1451 Abv = new BitCodeAbbrev(); 1452 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR)); 1453 // Redeclarable 1454 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1455 // Decl 1456 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1457 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1458 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1459 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1460 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1461 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1462 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1463 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1464 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1465 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1466 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1467 // NamedDecl 1468 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1469 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1470 // ValueDecl 1471 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1472 // DeclaratorDecl 1473 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1474 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1475 // VarDecl 1476 Abv->Add(BitCodeAbbrevOp(0)); // StorageClass 1477 Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten 1478 Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified 1479 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer 1480 Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable 1481 Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable 1482 Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl 1483 Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong 1484 Abv->Add(BitCodeAbbrevOp(0)); // HasInit 1485 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo 1486 // ParmVarDecl 1487 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter 1488 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth 1489 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex 1490 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier 1491 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted 1492 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg 1493 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg 1494 // Type Source Info 1495 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1496 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1497 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1498 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv); 1499 1500 // Abbreviation for DECL_TYPEDEF 1501 Abv = new BitCodeAbbrev(); 1502 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF)); 1503 // Redeclarable 1504 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1505 // Decl 1506 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1507 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1508 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1509 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1510 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1511 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1512 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1513 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1514 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1515 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1516 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1517 // NamedDecl 1518 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1519 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1520 // TypeDecl 1521 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1522 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1523 // TypedefDecl 1524 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1525 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1526 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv); 1527 1528 // Abbreviation for DECL_VAR 1529 Abv = new BitCodeAbbrev(); 1530 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR)); 1531 // Redeclarable 1532 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1533 // Decl 1534 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1535 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1536 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1537 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1538 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1539 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1540 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1541 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1542 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1543 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1544 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1545 // NamedDecl 1546 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1547 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1548 // ValueDecl 1549 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1550 // DeclaratorDecl 1551 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1552 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1553 // VarDecl 1554 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass 1555 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten 1556 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified 1557 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer 1558 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable 1559 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable 1560 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl 1561 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 1562 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit 1563 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo 1564 // Type Source Info 1565 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1566 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1567 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1568 DeclVarAbbrev = Stream.EmitAbbrev(Abv); 1569 1570 // Abbreviation for EXPR_DECL_REF 1571 Abv = new BitCodeAbbrev(); 1572 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF)); 1573 //Stmt 1574 //Expr 1575 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1576 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1577 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1578 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1579 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1580 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1581 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1582 //DeclRefExpr 1583 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier 1584 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound 1585 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs 1586 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates 1587 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef 1588 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1589 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv); 1590 1591 // Abbreviation for EXPR_INTEGER_LITERAL 1592 Abv = new BitCodeAbbrev(); 1593 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL)); 1594 //Stmt 1595 //Expr 1596 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1597 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1598 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1599 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1600 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1601 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1602 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1603 //Integer Literal 1604 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1605 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width 1606 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value 1607 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv); 1608 1609 // Abbreviation for EXPR_CHARACTER_LITERAL 1610 Abv = new BitCodeAbbrev(); 1611 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL)); 1612 //Stmt 1613 //Expr 1614 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1615 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1616 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1617 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1618 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1619 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1620 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1621 //Character Literal 1622 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue 1623 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1624 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide 1625 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv); 1626 1627 Abv = new BitCodeAbbrev(); 1628 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL)); 1629 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1630 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv); 1631 1632 Abv = new BitCodeAbbrev(); 1633 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE)); 1634 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1635 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1636 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv); 1637} 1638 1639/// isRequiredDecl - Check if this is a "required" Decl, which must be seen by 1640/// consumers of the AST. 1641/// 1642/// Such decls will always be deserialized from the AST file, so we would like 1643/// this to be as restrictive as possible. Currently the predicate is driven by 1644/// code generation requirements, if other clients have a different notion of 1645/// what is "required" then we may have to consider an alternate scheme where 1646/// clients can iterate over the top-level decls and get information on them, 1647/// without necessary deserializing them. We could explicitly require such 1648/// clients to use a separate API call to "realize" the decl. This should be 1649/// relatively painless since they would presumably only do it for top-level 1650/// decls. 1651static bool isRequiredDecl(const Decl *D, ASTContext &Context) { 1652 // An ObjCMethodDecl is never considered as "required" because its 1653 // implementation container always is. 1654 1655 // File scoped assembly or obj-c implementation must be seen. 1656 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D)) 1657 return true; 1658 1659 return Context.DeclMustBeEmitted(D); 1660} 1661 1662void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) { 1663 // Switch case IDs are per Decl. 1664 ClearSwitchCaseIDs(); 1665 1666 RecordData Record; 1667 ASTDeclWriter W(*this, Context, Record); 1668 1669 // If this declaration is also a DeclContext, write blocks for the 1670 // declarations that lexically stored inside its context and those 1671 // declarations that are visible from its context. These blocks 1672 // are written before the declaration itself so that we can put 1673 // their offsets into the record for the declaration. 1674 uint64_t LexicalOffset = 0; 1675 uint64_t VisibleOffset = 0; 1676 DeclContext *DC = dyn_cast<DeclContext>(D); 1677 if (DC) { 1678 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC); 1679 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC); 1680 } 1681 1682 // Determine the ID for this declaration 1683 serialization::DeclID &IDR = DeclIDs[D]; 1684 if (IDR == 0) 1685 IDR = NextDeclID++; 1686 serialization::DeclID ID = IDR; 1687 1688 if (ID < FirstDeclID) { 1689 // We're replacing a decl in a previous file. 1690 ReplacedDecls.push_back(ReplacedDeclInfo(ID, Stream.GetCurrentBitNo(), 1691 D->getLocation())); 1692 } else { 1693 unsigned Index = ID - FirstDeclID; 1694 1695 // Record the offset for this declaration 1696 SourceLocation Loc = D->getLocation(); 1697 if (DeclOffsets.size() == Index) 1698 DeclOffsets.push_back(DeclOffset(Loc, Stream.GetCurrentBitNo())); 1699 else if (DeclOffsets.size() < Index) { 1700 DeclOffsets.resize(Index+1); 1701 DeclOffsets[Index].setLocation(Loc); 1702 DeclOffsets[Index].BitOffset = Stream.GetCurrentBitNo(); 1703 } 1704 1705 SourceManager &SM = Context.getSourceManager(); 1706 if (Loc.isValid() && SM.isLocalSourceLocation(Loc)) 1707 associateDeclWithFile(D, ID); 1708 } 1709 1710 // Build and emit a record for this declaration 1711 Record.clear(); 1712 W.Code = (serialization::DeclCode)0; 1713 W.AbbrevToUse = 0; 1714 W.Visit(D); 1715 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset); 1716 1717 if (!W.Code) 1718 llvm::report_fatal_error(StringRef("unexpected declaration kind '") + 1719 D->getDeclKindName() + "'"); 1720 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse); 1721 1722 // Flush any expressions that were written as part of this declaration. 1723 FlushStmts(); 1724 1725 // Flush C++ base specifiers, if there are any. 1726 FlushCXXBaseSpecifiers(); 1727 1728 // Note "external" declarations so that we can add them to a record in the 1729 // AST file later. 1730 // 1731 // FIXME: This should be renamed, the predicate is much more complicated. 1732 if (isRequiredDecl(D, Context)) 1733 ExternalDefinitions.push_back(ID); 1734} 1735