ASTWriterDecl.cpp revision eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27
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 "llvm/ADT/Twine.h" 22#include "llvm/Bitcode/BitstreamWriter.h" 23#include "llvm/Support/ErrorHandling.h" 24using namespace clang; 25using namespace serialization; 26 27//===----------------------------------------------------------------------===// 28// Declaration serialization 29//===----------------------------------------------------------------------===// 30 31namespace clang { 32 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> { 33 34 ASTWriter &Writer; 35 ASTContext &Context; 36 typedef ASTWriter::RecordData RecordData; 37 RecordData &Record; 38 39 public: 40 serialization::DeclCode Code; 41 unsigned AbbrevToUse; 42 43 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, RecordData &Record) 44 : Writer(Writer), Context(Context), Record(Record) { 45 } 46 47 void Visit(Decl *D); 48 49 void VisitDecl(Decl *D); 50 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 51 void VisitNamedDecl(NamedDecl *D); 52 void VisitLabelDecl(LabelDecl *LD); 53 void VisitNamespaceDecl(NamespaceDecl *D); 54 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 55 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 56 void VisitTypeDecl(TypeDecl *D); 57 void VisitTypedefDecl(TypedefDecl *D); 58 void VisitTypeAliasDecl(TypeAliasDecl *D); 59 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 60 void VisitTagDecl(TagDecl *D); 61 void VisitEnumDecl(EnumDecl *D); 62 void VisitRecordDecl(RecordDecl *D); 63 void VisitCXXRecordDecl(CXXRecordDecl *D); 64 void VisitClassTemplateSpecializationDecl( 65 ClassTemplateSpecializationDecl *D); 66 void VisitClassTemplatePartialSpecializationDecl( 67 ClassTemplatePartialSpecializationDecl *D); 68 void VisitClassScopeFunctionSpecializationDecl( 69 ClassScopeFunctionSpecializationDecl *D); 70 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 71 void VisitValueDecl(ValueDecl *D); 72 void VisitEnumConstantDecl(EnumConstantDecl *D); 73 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 74 void VisitDeclaratorDecl(DeclaratorDecl *D); 75 void VisitFunctionDecl(FunctionDecl *D); 76 void VisitCXXMethodDecl(CXXMethodDecl *D); 77 void VisitCXXConstructorDecl(CXXConstructorDecl *D); 78 void VisitCXXDestructorDecl(CXXDestructorDecl *D); 79 void VisitCXXConversionDecl(CXXConversionDecl *D); 80 void VisitFieldDecl(FieldDecl *D); 81 void VisitIndirectFieldDecl(IndirectFieldDecl *D); 82 void VisitVarDecl(VarDecl *D); 83 void VisitImplicitParamDecl(ImplicitParamDecl *D); 84 void VisitParmVarDecl(ParmVarDecl *D); 85 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 86 void VisitTemplateDecl(TemplateDecl *D); 87 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); 88 void VisitClassTemplateDecl(ClassTemplateDecl *D); 89 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 90 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 91 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); 92 void VisitUsingDecl(UsingDecl *D); 93 void VisitUsingShadowDecl(UsingShadowDecl *D); 94 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 95 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 96 void VisitAccessSpecDecl(AccessSpecDecl *D); 97 void VisitFriendDecl(FriendDecl *D); 98 void VisitFriendTemplateDecl(FriendTemplateDecl *D); 99 void VisitStaticAssertDecl(StaticAssertDecl *D); 100 void VisitBlockDecl(BlockDecl *D); 101 102 void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 103 uint64_t VisibleOffset); 104 template <typename T> void VisitRedeclarable(Redeclarable<T> *D); 105 106 107 // FIXME: Put in the same order is DeclNodes.td? 108 void VisitObjCMethodDecl(ObjCMethodDecl *D); 109 void VisitObjCContainerDecl(ObjCContainerDecl *D); 110 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 111 void VisitObjCIvarDecl(ObjCIvarDecl *D); 112 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 113 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); 114 void VisitObjCClassDecl(ObjCClassDecl *D); 115 void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D); 116 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 117 void VisitObjCImplDecl(ObjCImplDecl *D); 118 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 119 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 120 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 121 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 122 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 123 }; 124} 125 126void ASTDeclWriter::Visit(Decl *D) { 127 DeclVisitor<ASTDeclWriter>::Visit(D); 128 129 // Source locations require array (variable-length) abbreviations. The 130 // abbreviation infrastructure requires that arrays are encoded last, so 131 // we handle it here in the case of those classes derived from DeclaratorDecl 132 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){ 133 Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record); 134 } 135 136 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs 137 // have been written. We want it last because we will not read it back when 138 // retrieving it from the AST, we'll just lazily set the offset. 139 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 140 Record.push_back(FD->doesThisDeclarationHaveABody()); 141 if (FD->doesThisDeclarationHaveABody()) 142 Writer.AddStmt(FD->getBody()); 143 } 144} 145 146void ASTDeclWriter::VisitDecl(Decl *D) { 147 Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record); 148 Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record); 149 Writer.AddSourceLocation(D->getLocation(), 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->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->isDefinition()); 206 Record.push_back(D->isEmbeddedInDeclarator()); 207 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 208 Record.push_back(D->hasExtInfo()); 209 if (D->hasExtInfo()) 210 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 211 else 212 Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record); 213} 214 215void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) { 216 VisitTagDecl(D); 217 Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record); 218 if (!D->getIntegerTypeSourceInfo()) 219 Writer.AddTypeRef(D->getIntegerType(), Record); 220 Writer.AddTypeRef(D->getPromotionType(), Record); 221 Record.push_back(D->getNumPositiveBits()); 222 Record.push_back(D->getNumNegativeBits()); 223 Record.push_back(D->isScoped()); 224 Record.push_back(D->isScopedUsingClassTag()); 225 Record.push_back(D->isFixed()); 226 Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record); 227 228 if (!D->hasAttrs() && 229 !D->isImplicit() && 230 !D->isUsed(false) && 231 !D->hasExtInfo() && 232 D->RedeclLink.getNext() == D && 233 !D->isInvalidDecl() && 234 !D->isReferenced() && 235 D->getAccess() == AS_none && 236 !D->isModulePrivate() && 237 !CXXRecordDecl::classofKind(D->getKind()) && 238 !D->getIntegerTypeSourceInfo() && 239 D->getDeclName().getNameKind() == DeclarationName::Identifier) 240 AbbrevToUse = Writer.getDeclEnumAbbrev(); 241 242 Code = serialization::DECL_ENUM; 243} 244 245void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) { 246 VisitTagDecl(D); 247 Record.push_back(D->hasFlexibleArrayMember()); 248 Record.push_back(D->isAnonymousStructOrUnion()); 249 Record.push_back(D->hasObjectMember()); 250 251 if (!D->hasAttrs() && 252 !D->isImplicit() && 253 !D->isUsed(false) && 254 !D->hasExtInfo() && 255 D->RedeclLink.getNext() == D && 256 !D->isInvalidDecl() && 257 !D->isReferenced() && 258 D->getAccess() == AS_none && 259 !D->isModulePrivate() && 260 !CXXRecordDecl::classofKind(D->getKind()) && 261 D->getDeclName().getNameKind() == DeclarationName::Identifier) 262 AbbrevToUse = Writer.getDeclRecordAbbrev(); 263 264 Code = serialization::DECL_RECORD; 265} 266 267void ASTDeclWriter::VisitValueDecl(ValueDecl *D) { 268 VisitNamedDecl(D); 269 Writer.AddTypeRef(D->getType(), Record); 270} 271 272void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { 273 VisitValueDecl(D); 274 Record.push_back(D->getInitExpr()? 1 : 0); 275 if (D->getInitExpr()) 276 Writer.AddStmt(D->getInitExpr()); 277 Writer.AddAPSInt(D->getInitVal(), Record); 278 279 Code = serialization::DECL_ENUM_CONSTANT; 280} 281 282void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { 283 VisitValueDecl(D); 284 Writer.AddSourceLocation(D->getInnerLocStart(), Record); 285 Record.push_back(D->hasExtInfo()); 286 if (D->hasExtInfo()) 287 Writer.AddQualifierInfo(*D->getExtInfo(), Record); 288} 289 290void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) { 291 VisitDeclaratorDecl(D); 292 VisitRedeclarable(D); 293 294 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 295 Record.push_back(D->getIdentifierNamespace()); 296 Record.push_back(D->getTemplatedKind()); 297 switch (D->getTemplatedKind()) { 298 default: llvm_unreachable("Unhandled TemplatedKind!"); 299 case FunctionDecl::TK_NonTemplate: 300 break; 301 case FunctionDecl::TK_FunctionTemplate: 302 Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record); 303 break; 304 case FunctionDecl::TK_MemberSpecialization: { 305 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); 306 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record); 307 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 308 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record); 309 break; 310 } 311 case FunctionDecl::TK_FunctionTemplateSpecialization: { 312 FunctionTemplateSpecializationInfo * 313 FTSInfo = D->getTemplateSpecializationInfo(); 314 Writer.AddDeclRef(FTSInfo->getTemplate(), Record); 315 Record.push_back(FTSInfo->getTemplateSpecializationKind()); 316 317 // Template arguments. 318 Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record); 319 320 // Template args as written. 321 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0); 322 if (FTSInfo->TemplateArgumentsAsWritten) { 323 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs); 324 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs; 325 i!=e; ++i) 326 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i], 327 Record); 328 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc, 329 Record); 330 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc, 331 Record); 332 } 333 334 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record); 335 336 if (D->isCanonicalDecl()) { 337 // Write the template that contains the specializations set. We will 338 // add a FunctionTemplateSpecializationInfo to it when reading. 339 Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record); 340 } 341 break; 342 } 343 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { 344 DependentFunctionTemplateSpecializationInfo * 345 DFTSInfo = D->getDependentSpecializationInfo(); 346 347 // Templates. 348 Record.push_back(DFTSInfo->getNumTemplates()); 349 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) 350 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record); 351 352 // Templates args. 353 Record.push_back(DFTSInfo->getNumTemplateArgs()); 354 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) 355 Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record); 356 Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record); 357 Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record); 358 break; 359 } 360 } 361 362 // FunctionDecl's body is handled last at ASTWriterDecl::Visit, 363 // after everything else is written. 364 365 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 366 Record.push_back(D->getStorageClassAsWritten()); 367 Record.push_back(D->IsInline); 368 Record.push_back(D->isInlineSpecified()); 369 Record.push_back(D->isVirtualAsWritten()); 370 Record.push_back(D->isPure()); 371 Record.push_back(D->hasInheritedPrototype()); 372 Record.push_back(D->hasWrittenPrototype()); 373 Record.push_back(D->isDeletedAsWritten()); 374 Record.push_back(D->isTrivial()); 375 Record.push_back(D->isDefaulted()); 376 Record.push_back(D->isExplicitlyDefaulted()); 377 Record.push_back(D->hasImplicitReturnZero()); 378 Record.push_back(D->isConstexpr()); 379 Writer.AddSourceLocation(D->getLocEnd(), Record); 380 381 Record.push_back(D->param_size()); 382 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 383 P != PEnd; ++P) 384 Writer.AddDeclRef(*P, Record); 385 Code = serialization::DECL_FUNCTION; 386} 387 388void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { 389 VisitNamedDecl(D); 390 // FIXME: convert to LazyStmtPtr? 391 // Unlike C/C++, method bodies will never be in header files. 392 bool HasBodyStuff = D->getBody() != 0 || 393 D->getSelfDecl() != 0 || D->getCmdDecl() != 0; 394 Record.push_back(HasBodyStuff); 395 if (HasBodyStuff) { 396 Writer.AddStmt(D->getBody()); 397 Writer.AddDeclRef(D->getSelfDecl(), Record); 398 Writer.AddDeclRef(D->getCmdDecl(), Record); 399 } 400 Record.push_back(D->isInstanceMethod()); 401 Record.push_back(D->isVariadic()); 402 Record.push_back(D->isSynthesized()); 403 Record.push_back(D->isDefined()); 404 // FIXME: stable encoding for @required/@optional 405 Record.push_back(D->getImplementationControl()); 406 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway 407 Record.push_back(D->getObjCDeclQualifier()); 408 Record.push_back(D->hasRelatedResultType()); 409 Record.push_back(D->getNumSelectorArgs()); 410 Writer.AddTypeRef(D->getResultType(), Record); 411 Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record); 412 Writer.AddSourceLocation(D->getLocEnd(), Record); 413 Record.push_back(D->param_size()); 414 for (ObjCMethodDecl::param_iterator P = D->param_begin(), 415 PEnd = D->param_end(); P != PEnd; ++P) 416 Writer.AddDeclRef(*P, Record); 417 Code = serialization::DECL_OBJC_METHOD; 418} 419 420void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { 421 VisitNamedDecl(D); 422 Writer.AddSourceRange(D->getAtEndRange(), Record); 423 // Abstract class (no need to define a stable serialization::DECL code). 424} 425 426void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 427 VisitObjCContainerDecl(D); 428 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); 429 Writer.AddDeclRef(D->getSuperClass(), Record); 430 431 // Write out the protocols that are directly referenced by the @interface. 432 Record.push_back(D->ReferencedProtocols.size()); 433 for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(), 434 PEnd = D->protocol_end(); 435 P != PEnd; ++P) 436 Writer.AddDeclRef(*P, Record); 437 for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 438 PLEnd = D->protocol_loc_end(); 439 PL != PLEnd; ++PL) 440 Writer.AddSourceLocation(*PL, Record); 441 442 // Write out the protocols that are transitively referenced. 443 Record.push_back(D->AllReferencedProtocols.size()); 444 for (ObjCList<ObjCProtocolDecl>::iterator 445 P = D->AllReferencedProtocols.begin(), 446 PEnd = D->AllReferencedProtocols.end(); 447 P != PEnd; ++P) 448 Writer.AddDeclRef(*P, Record); 449 450 // Write out the ivars. 451 Record.push_back(D->ivar_size()); 452 for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(), 453 IEnd = D->ivar_end(); I != IEnd; ++I) 454 Writer.AddDeclRef(*I, Record); 455 Writer.AddDeclRef(D->getCategoryList(), Record); 456 Record.push_back(D->isForwardDecl()); 457 Record.push_back(D->isImplicitInterfaceDecl()); 458 Writer.AddSourceLocation(D->getClassLoc(), Record); 459 Writer.AddSourceLocation(D->getSuperClassLoc(), Record); 460 Writer.AddSourceLocation(D->getLocEnd(), Record); 461 Code = serialization::DECL_OBJC_INTERFACE; 462} 463 464void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { 465 VisitFieldDecl(D); 466 // FIXME: stable encoding for @public/@private/@protected/@package 467 Record.push_back(D->getAccessControl()); 468 Record.push_back(D->getSynthesize()); 469 470 if (!D->hasAttrs() && 471 !D->isImplicit() && 472 !D->isUsed(false) && 473 !D->isInvalidDecl() && 474 !D->isReferenced() && 475 !D->isModulePrivate() && 476 !D->getBitWidth() && 477 !D->hasExtInfo() && 478 D->getDeclName()) 479 AbbrevToUse = Writer.getDeclObjCIvarAbbrev(); 480 481 Code = serialization::DECL_OBJC_IVAR; 482} 483 484void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { 485 VisitObjCContainerDecl(D); 486 Record.push_back(D->isForwardDecl()); 487 Writer.AddSourceLocation(D->getLocEnd(), Record); 488 Record.push_back(D->protocol_size()); 489 for (ObjCProtocolDecl::protocol_iterator 490 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 491 Writer.AddDeclRef(*I, Record); 492 for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), 493 PLEnd = D->protocol_loc_end(); 494 PL != PLEnd; ++PL) 495 Writer.AddSourceLocation(*PL, Record); 496 Code = serialization::DECL_OBJC_PROTOCOL; 497} 498 499void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { 500 VisitFieldDecl(D); 501 Code = serialization::DECL_OBJC_AT_DEFS_FIELD; 502} 503 504void ASTDeclWriter::VisitObjCClassDecl(ObjCClassDecl *D) { 505 VisitDecl(D); 506 Writer.AddDeclRef(D->getForwardInterfaceDecl(), Record); 507 Writer.AddSourceLocation(D->getForwardDecl()->getLocation(), Record); 508 Code = serialization::DECL_OBJC_CLASS; 509} 510 511void ASTDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { 512 VisitDecl(D); 513 Record.push_back(D->protocol_size()); 514 for (ObjCForwardProtocolDecl::protocol_iterator 515 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 516 Writer.AddDeclRef(*I, Record); 517 for (ObjCForwardProtocolDecl::protocol_loc_iterator 518 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); 519 PL != PLEnd; ++PL) 520 Writer.AddSourceLocation(*PL, Record); 521 Code = serialization::DECL_OBJC_FORWARD_PROTOCOL; 522} 523 524void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { 525 VisitObjCContainerDecl(D); 526 Writer.AddDeclRef(D->getClassInterface(), Record); 527 Record.push_back(D->protocol_size()); 528 for (ObjCCategoryDecl::protocol_iterator 529 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) 530 Writer.AddDeclRef(*I, Record); 531 for (ObjCCategoryDecl::protocol_loc_iterator 532 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); 533 PL != PLEnd; ++PL) 534 Writer.AddSourceLocation(*PL, Record); 535 Writer.AddDeclRef(D->getNextClassCategory(), Record); 536 Record.push_back(D->hasSynthBitfield()); 537 Writer.AddSourceLocation(D->getAtLoc(), Record); 538 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); 539 Code = serialization::DECL_OBJC_CATEGORY; 540} 541 542void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { 543 VisitNamedDecl(D); 544 Writer.AddDeclRef(D->getClassInterface(), Record); 545 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS; 546} 547 548void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { 549 VisitNamedDecl(D); 550 Writer.AddSourceLocation(D->getAtLoc(), Record); 551 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); 552 // FIXME: stable encoding 553 Record.push_back((unsigned)D->getPropertyAttributes()); 554 Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); 555 // FIXME: stable encoding 556 Record.push_back((unsigned)D->getPropertyImplementation()); 557 Writer.AddDeclarationName(D->getGetterName(), Record); 558 Writer.AddDeclarationName(D->getSetterName(), Record); 559 Writer.AddDeclRef(D->getGetterMethodDecl(), Record); 560 Writer.AddDeclRef(D->getSetterMethodDecl(), Record); 561 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 562 Code = serialization::DECL_OBJC_PROPERTY; 563} 564 565void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { 566 VisitObjCContainerDecl(D); 567 Writer.AddDeclRef(D->getClassInterface(), Record); 568 // Abstract class (no need to define a stable serialization::DECL code). 569} 570 571void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 572 VisitObjCImplDecl(D); 573 Writer.AddIdentifierRef(D->getIdentifier(), Record); 574 Code = serialization::DECL_OBJC_CATEGORY_IMPL; 575} 576 577void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 578 VisitObjCImplDecl(D); 579 Writer.AddDeclRef(D->getSuperClass(), Record); 580 Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers, 581 Record); 582 Record.push_back(D->hasSynthBitfield()); 583 Code = serialization::DECL_OBJC_IMPLEMENTATION; 584} 585 586void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { 587 VisitDecl(D); 588 Writer.AddSourceLocation(D->getLocStart(), Record); 589 Writer.AddDeclRef(D->getPropertyDecl(), Record); 590 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); 591 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record); 592 Writer.AddStmt(D->getGetterCXXConstructor()); 593 Writer.AddStmt(D->getSetterCXXAssignment()); 594 Code = serialization::DECL_OBJC_PROPERTY_IMPL; 595} 596 597void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) { 598 VisitDeclaratorDecl(D); 599 Record.push_back(D->isMutable()); 600 Record.push_back(D->getBitWidth()? 1 : D->hasInClassInitializer() ? 2 : 0); 601 if (D->getBitWidth()) 602 Writer.AddStmt(D->getBitWidth()); 603 else if (D->hasInClassInitializer()) 604 Writer.AddStmt(D->getInClassInitializer()); 605 if (!D->getDeclName()) 606 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record); 607 608 if (!D->hasAttrs() && 609 !D->isImplicit() && 610 !D->isUsed(false) && 611 !D->isInvalidDecl() && 612 !D->isReferenced() && 613 !D->isModulePrivate() && 614 !D->getBitWidth() && 615 !D->hasInClassInitializer() && 616 !D->hasExtInfo() && 617 !ObjCIvarDecl::classofKind(D->getKind()) && 618 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) && 619 D->getDeclName()) 620 AbbrevToUse = Writer.getDeclFieldAbbrev(); 621 622 Code = serialization::DECL_FIELD; 623} 624 625void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 626 VisitValueDecl(D); 627 Record.push_back(D->getChainingSize()); 628 629 for (IndirectFieldDecl::chain_iterator 630 P = D->chain_begin(), 631 PEnd = D->chain_end(); P != PEnd; ++P) 632 Writer.AddDeclRef(*P, Record); 633 Code = serialization::DECL_INDIRECTFIELD; 634} 635 636void ASTDeclWriter::VisitVarDecl(VarDecl *D) { 637 VisitDeclaratorDecl(D); 638 VisitRedeclarable(D); 639 Record.push_back(D->getStorageClass()); // FIXME: stable encoding 640 Record.push_back(D->getStorageClassAsWritten()); 641 Record.push_back(D->isThreadSpecified()); 642 Record.push_back(D->hasCXXDirectInitializer()); 643 Record.push_back(D->isExceptionVariable()); 644 Record.push_back(D->isNRVOVariable()); 645 Record.push_back(D->isCXXForRangeDecl()); 646 Record.push_back(D->isARCPseudoStrong()); 647 Record.push_back(D->getInit() ? 1 : 0); 648 if (D->getInit()) 649 Writer.AddStmt(D->getInit()); 650 651 MemberSpecializationInfo *SpecInfo 652 = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0; 653 Record.push_back(SpecInfo != 0); 654 if (SpecInfo) { 655 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record); 656 Record.push_back(SpecInfo->getTemplateSpecializationKind()); 657 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record); 658 } 659 660 if (!D->hasAttrs() && 661 !D->isImplicit() && 662 !D->isUsed(false) && 663 !D->isInvalidDecl() && 664 !D->isReferenced() && 665 D->getAccess() == AS_none && 666 !D->isModulePrivate() && 667 D->getDeclName().getNameKind() == DeclarationName::Identifier && 668 !D->hasExtInfo() && 669 D->RedeclLink.getNext() == D && 670 !D->hasCXXDirectInitializer() && 671 D->getInit() == 0 && 672 !isa<ParmVarDecl>(D) && 673 !SpecInfo) 674 AbbrevToUse = Writer.getDeclVarAbbrev(); 675 676 Code = serialization::DECL_VAR; 677} 678 679void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { 680 VisitVarDecl(D); 681 Code = serialization::DECL_IMPLICIT_PARAM; 682} 683 684void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { 685 VisitVarDecl(D); 686 Record.push_back(D->isObjCMethodParameter()); 687 Record.push_back(D->getFunctionScopeDepth()); 688 Record.push_back(D->getFunctionScopeIndex()); 689 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding 690 Record.push_back(D->isKNRPromoted()); 691 Record.push_back(D->hasInheritedDefaultArg()); 692 Record.push_back(D->hasUninstantiatedDefaultArg()); 693 if (D->hasUninstantiatedDefaultArg()) 694 Writer.AddStmt(D->getUninstantiatedDefaultArg()); 695 Code = serialization::DECL_PARM_VAR; 696 697 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl 698 699 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here 700 // we dynamically check for the properties that we optimize for, but don't 701 // know are true of all PARM_VAR_DECLs. 702 if (!D->hasAttrs() && 703 !D->hasExtInfo() && 704 !D->isImplicit() && 705 !D->isUsed(false) && 706 D->getAccess() == AS_none && 707 !D->isModulePrivate() && 708 D->getStorageClass() == 0 && 709 !D->hasCXXDirectInitializer() && // Can params have this ever? 710 D->getFunctionScopeDepth() == 0 && 711 D->getObjCDeclQualifier() == 0 && 712 !D->isKNRPromoted() && 713 !D->hasInheritedDefaultArg() && 714 D->getInit() == 0 && 715 !D->hasUninstantiatedDefaultArg()) // No default expr. 716 AbbrevToUse = Writer.getDeclParmVarAbbrev(); 717 718 // Check things we know are true of *every* PARM_VAR_DECL, which is more than 719 // just us assuming it. 720 assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls"); 721 assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread"); 722 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); 723 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); 724 assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl"); 725 assert(!D->isStaticDataMember() && 726 "PARM_VAR_DECL can't be static data member"); 727} 728 729void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 730 VisitDecl(D); 731 Writer.AddStmt(D->getAsmString()); 732 Writer.AddSourceLocation(D->getRParenLoc(), Record); 733 Code = serialization::DECL_FILE_SCOPE_ASM; 734} 735 736void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { 737 VisitDecl(D); 738 Writer.AddStmt(D->getBody()); 739 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record); 740 Record.push_back(D->param_size()); 741 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); 742 P != PEnd; ++P) 743 Writer.AddDeclRef(*P, Record); 744 Record.push_back(D->capturesCXXThis()); 745 Record.push_back(D->getNumCaptures()); 746 for (BlockDecl::capture_iterator 747 i = D->capture_begin(), e = D->capture_end(); i != e; ++i) { 748 const BlockDecl::Capture &capture = *i; 749 Writer.AddDeclRef(capture.getVariable(), Record); 750 751 unsigned flags = 0; 752 if (capture.isByRef()) flags |= 1; 753 if (capture.isNested()) flags |= 2; 754 if (capture.hasCopyExpr()) flags |= 4; 755 Record.push_back(flags); 756 757 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr()); 758 } 759 760 Code = serialization::DECL_BLOCK; 761} 762 763void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 764 VisitDecl(D); 765 Record.push_back(D->getLanguage()); 766 Writer.AddSourceLocation(D->getExternLoc(), Record); 767 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 768 Code = serialization::DECL_LINKAGE_SPEC; 769} 770 771void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) { 772 VisitNamedDecl(D); 773 Writer.AddSourceLocation(D->getLocStart(), Record); 774 Code = serialization::DECL_LABEL; 775} 776 777 778void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { 779 VisitNamedDecl(D); 780 Record.push_back(D->isInline()); 781 Writer.AddSourceLocation(D->getLocStart(), Record); 782 Writer.AddSourceLocation(D->getRBraceLoc(), Record); 783 Writer.AddDeclRef(D->getNextNamespace(), Record); 784 785 // Only write one reference--original or anonymous 786 Record.push_back(D->isOriginalNamespace()); 787 if (D->isOriginalNamespace()) 788 Writer.AddDeclRef(D->getAnonymousNamespace(), Record); 789 else 790 Writer.AddDeclRef(D->getOriginalNamespace(), Record); 791 Code = serialization::DECL_NAMESPACE; 792 793 if (Writer.hasChain() && !D->isOriginalNamespace() && 794 D->getOriginalNamespace()->isFromASTFile()) { 795 NamespaceDecl *NS = D->getOriginalNamespace(); 796 Writer.AddUpdatedDeclContext(NS); 797 798 // Make sure all visible decls are written. They will be recorded later. 799 NS->lookup(DeclarationName()); 800 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(NS->getLookupPtr()); 801 if (Map) { 802 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end(); 803 D != DEnd; ++D) { 804 DeclContext::lookup_result Result = D->second.getLookupResult(); 805 while (Result.first != Result.second) { 806 Writer.GetDeclRef(*Result.first); 807 ++Result.first; 808 } 809 } 810 } 811 } 812 813 if (Writer.hasChain() && D->isAnonymousNamespace() && !D->getNextNamespace()){ 814 // This is a most recent reopening of the anonymous namespace. If its parent 815 // is in a previous PCH (or is the TU), mark that parent for update, because 816 // the original namespace always points to the latest re-opening of its 817 // anonymous namespace. 818 Decl *Parent = cast<Decl>( 819 D->getParent()->getRedeclContext()->getPrimaryContext()); 820 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) { 821 ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent]; 822 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE); 823 Writer.AddDeclRef(D, Record); 824 } 825 } 826} 827 828void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 829 VisitNamedDecl(D); 830 Writer.AddSourceLocation(D->getNamespaceLoc(), Record); 831 Writer.AddSourceLocation(D->getTargetNameLoc(), Record); 832 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 833 Writer.AddDeclRef(D->getNamespace(), Record); 834 Code = serialization::DECL_NAMESPACE_ALIAS; 835} 836 837void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) { 838 VisitNamedDecl(D); 839 Writer.AddSourceLocation(D->getUsingLocation(), Record); 840 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 841 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 842 Writer.AddDeclRef(D->FirstUsingShadow, Record); 843 Record.push_back(D->isTypeName()); 844 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record); 845 Code = serialization::DECL_USING; 846} 847 848void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { 849 VisitNamedDecl(D); 850 Writer.AddDeclRef(D->getTargetDecl(), Record); 851 Writer.AddDeclRef(D->UsingOrNextShadow, Record); 852 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record); 853 Code = serialization::DECL_USING_SHADOW; 854} 855 856void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 857 VisitNamedDecl(D); 858 Writer.AddSourceLocation(D->getUsingLoc(), Record); 859 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record); 860 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 861 Writer.AddDeclRef(D->getNominatedNamespace(), Record); 862 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record); 863 Code = serialization::DECL_USING_DIRECTIVE; 864} 865 866void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 867 VisitValueDecl(D); 868 Writer.AddSourceLocation(D->getUsingLoc(), Record); 869 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 870 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record); 871 Code = serialization::DECL_UNRESOLVED_USING_VALUE; 872} 873 874void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl( 875 UnresolvedUsingTypenameDecl *D) { 876 VisitTypeDecl(D); 877 Writer.AddSourceLocation(D->getTypenameLoc(), Record); 878 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record); 879 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME; 880} 881 882void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { 883 VisitRecordDecl(D); 884 885 CXXRecordDecl *DefinitionDecl = 0; 886 if (D->DefinitionData) 887 DefinitionDecl = D->DefinitionData->Definition; 888 Writer.AddDeclRef(DefinitionDecl, Record); 889 if (D == DefinitionDecl) 890 Writer.AddCXXDefinitionData(D, Record); 891 892 enum { 893 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization 894 }; 895 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { 896 Record.push_back(CXXRecTemplate); 897 Writer.AddDeclRef(TemplD, Record); 898 } else if (MemberSpecializationInfo *MSInfo 899 = D->getMemberSpecializationInfo()) { 900 Record.push_back(CXXRecMemberSpecialization); 901 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record); 902 Record.push_back(MSInfo->getTemplateSpecializationKind()); 903 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record); 904 } else { 905 Record.push_back(CXXRecNotTemplate); 906 } 907 908 // Store the key function to avoid deserializing every method so we can 909 // compute it. 910 if (D->IsDefinition) 911 Writer.AddDeclRef(Context.getKeyFunction(D), Record); 912 913 Code = serialization::DECL_CXX_RECORD; 914} 915 916void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { 917 VisitFunctionDecl(D); 918 Record.push_back(D->size_overridden_methods()); 919 for (CXXMethodDecl::method_iterator 920 I = D->begin_overridden_methods(), E = D->end_overridden_methods(); 921 I != E; ++I) 922 Writer.AddDeclRef(*I, Record); 923 Code = serialization::DECL_CXX_METHOD; 924} 925 926void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 927 VisitCXXMethodDecl(D); 928 929 Record.push_back(D->IsExplicitSpecified); 930 Record.push_back(D->ImplicitlyDefined); 931 Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers, 932 Record); 933 934 Code = serialization::DECL_CXX_CONSTRUCTOR; 935} 936 937void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 938 VisitCXXMethodDecl(D); 939 940 Record.push_back(D->ImplicitlyDefined); 941 Writer.AddDeclRef(D->OperatorDelete, Record); 942 943 Code = serialization::DECL_CXX_DESTRUCTOR; 944} 945 946void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { 947 VisitCXXMethodDecl(D); 948 Record.push_back(D->IsExplicitSpecified); 949 Code = serialization::DECL_CXX_CONVERSION; 950} 951 952void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { 953 VisitDecl(D); 954 Writer.AddSourceLocation(D->getColonLoc(), Record); 955 Code = serialization::DECL_ACCESS_SPEC; 956} 957 958void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) { 959 VisitDecl(D); 960 Record.push_back(D->Friend.is<TypeSourceInfo*>()); 961 if (D->Friend.is<TypeSourceInfo*>()) 962 Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record); 963 else 964 Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record); 965 Writer.AddDeclRef(D->getNextFriend(), Record); 966 Record.push_back(D->UnsupportedFriend); 967 Writer.AddSourceLocation(D->FriendLoc, Record); 968 Code = serialization::DECL_FRIEND; 969} 970 971void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { 972 VisitDecl(D); 973 Record.push_back(D->getNumTemplateParameters()); 974 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) 975 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record); 976 Record.push_back(D->getFriendDecl() != 0); 977 if (D->getFriendDecl()) 978 Writer.AddDeclRef(D->getFriendDecl(), Record); 979 else 980 Writer.AddTypeSourceInfo(D->getFriendType(), Record); 981 Writer.AddSourceLocation(D->getFriendLoc(), Record); 982 Code = serialization::DECL_FRIEND_TEMPLATE; 983} 984 985void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) { 986 VisitNamedDecl(D); 987 988 Writer.AddDeclRef(D->getTemplatedDecl(), Record); 989 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 990} 991 992void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { 993 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that 994 // getCommonPtr() can be used while this is still initializing. 995 996 Writer.AddDeclRef(D->getPreviousDeclaration(), Record); 997 if (D->getPreviousDeclaration()) 998 Writer.AddDeclRef(D->getFirstDeclaration(), Record); 999 1000 if (D->getPreviousDeclaration() == 0) { 1001 // This TemplateDecl owns the CommonPtr; write it. 1002 assert(D->isCanonicalDecl()); 1003 1004 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record); 1005 if (D->getInstantiatedFromMemberTemplate()) 1006 Record.push_back(D->isMemberSpecialization()); 1007 1008 Writer.AddDeclRef(D->getCommonPtr()->Latest, Record); 1009 } else { 1010 RedeclarableTemplateDecl *First = D->getFirstDeclaration(); 1011 assert(First != D); 1012 // If this is a most recent redeclaration that is pointed to by a first decl 1013 // in a chained PCH, keep track of the association with the map so we can 1014 // update the first decl during AST reading. 1015 if (First->getMostRecentDeclaration() == D && 1016 First->isFromASTFile() && !D->isFromASTFile()) { 1017 assert(Writer.FirstLatestDecls.find(First)==Writer.FirstLatestDecls.end() 1018 && "The latest is already set"); 1019 Writer.FirstLatestDecls[First] = D; 1020 } 1021 } 1022 1023 VisitTemplateDecl(D); 1024 Record.push_back(D->getIdentifierNamespace()); 1025} 1026 1027void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 1028 VisitRedeclarableTemplateDecl(D); 1029 1030 if (D->getPreviousDeclaration() == 0) { 1031 typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy; 1032 CTSDSetTy &CTSDSet = D->getSpecializations(); 1033 Record.push_back(CTSDSet.size()); 1034 for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) { 1035 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1036 Writer.AddDeclRef(&*I, Record); 1037 } 1038 1039 typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy; 1040 CTPSDSetTy &CTPSDSet = D->getPartialSpecializations(); 1041 Record.push_back(CTPSDSet.size()); 1042 for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) { 1043 assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); 1044 Writer.AddDeclRef(&*I, Record); 1045 } 1046 1047 // InjectedClassNameType is computed, no need to write it. 1048 } 1049 Code = serialization::DECL_CLASS_TEMPLATE; 1050} 1051 1052void ASTDeclWriter::VisitClassTemplateSpecializationDecl( 1053 ClassTemplateSpecializationDecl *D) { 1054 VisitCXXRecordDecl(D); 1055 1056 llvm::PointerUnion<ClassTemplateDecl *, 1057 ClassTemplatePartialSpecializationDecl *> InstFrom 1058 = D->getSpecializedTemplateOrPartial(); 1059 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) { 1060 Writer.AddDeclRef(InstFromD, Record); 1061 } else { 1062 Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(), 1063 Record); 1064 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record); 1065 } 1066 1067 // Explicit info. 1068 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record); 1069 if (D->getTypeAsWritten()) { 1070 Writer.AddSourceLocation(D->getExternLoc(), Record); 1071 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record); 1072 } 1073 1074 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record); 1075 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record); 1076 Record.push_back(D->getSpecializationKind()); 1077 1078 if (D->isCanonicalDecl()) { 1079 // When reading, we'll add it to the folding set of the following template. 1080 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record); 1081 } 1082 1083 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION; 1084} 1085 1086void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl( 1087 ClassTemplatePartialSpecializationDecl *D) { 1088 VisitClassTemplateSpecializationDecl(D); 1089 1090 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); 1091 1092 Record.push_back(D->getNumTemplateArgsAsWritten()); 1093 for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i) 1094 Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record); 1095 1096 Record.push_back(D->getSequenceNumber()); 1097 1098 // These are read/set from/to the first declaration. 1099 if (D->getPreviousDeclaration() == 0) { 1100 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record); 1101 Record.push_back(D->isMemberSpecialization()); 1102 } 1103 1104 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; 1105} 1106 1107void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl( 1108 ClassScopeFunctionSpecializationDecl *D) { 1109 VisitDecl(D); 1110 Writer.AddDeclRef(D->getSpecialization(), Record); 1111 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION; 1112} 1113 1114 1115void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 1116 VisitRedeclarableTemplateDecl(D); 1117 1118 if (D->getPreviousDeclaration() == 0) { 1119 // This FunctionTemplateDecl owns the CommonPtr; write it. 1120 1121 // Write the function specialization declarations. 1122 Record.push_back(D->getSpecializations().size()); 1123 for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator 1124 I = D->getSpecializations().begin(), 1125 E = D->getSpecializations().end() ; I != E; ++I) { 1126 assert(I->Function->isCanonicalDecl() && 1127 "Expected only canonical decls in set"); 1128 Writer.AddDeclRef(I->Function, Record); 1129 } 1130 } 1131 Code = serialization::DECL_FUNCTION_TEMPLATE; 1132} 1133 1134void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 1135 VisitTypeDecl(D); 1136 1137 Record.push_back(D->wasDeclaredWithTypename()); 1138 Record.push_back(D->defaultArgumentWasInherited()); 1139 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record); 1140 1141 Code = serialization::DECL_TEMPLATE_TYPE_PARM; 1142} 1143 1144void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 1145 // For an expanded parameter pack, record the number of expansion types here 1146 // so that it's easier for 1147 if (D->isExpandedParameterPack()) 1148 Record.push_back(D->getNumExpansionTypes()); 1149 1150 VisitDeclaratorDecl(D); 1151 // TemplateParmPosition. 1152 Record.push_back(D->getDepth()); 1153 Record.push_back(D->getPosition()); 1154 1155 if (D->isExpandedParameterPack()) { 1156 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 1157 Writer.AddTypeRef(D->getExpansionType(I), Record); 1158 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record); 1159 } 1160 1161 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK; 1162 } else { 1163 // Rest of NonTypeTemplateParmDecl. 1164 Record.push_back(D->isParameterPack()); 1165 Record.push_back(D->getDefaultArgument() != 0); 1166 if (D->getDefaultArgument()) { 1167 Writer.AddStmt(D->getDefaultArgument()); 1168 Record.push_back(D->defaultArgumentWasInherited()); 1169 } 1170 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM; 1171 } 1172} 1173 1174void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 1175 VisitTemplateDecl(D); 1176 // TemplateParmPosition. 1177 Record.push_back(D->getDepth()); 1178 Record.push_back(D->getPosition()); 1179 // Rest of TemplateTemplateParmDecl. 1180 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record); 1181 Record.push_back(D->defaultArgumentWasInherited()); 1182 Record.push_back(D->isParameterPack()); 1183 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM; 1184} 1185 1186void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1187 VisitRedeclarableTemplateDecl(D); 1188 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE; 1189} 1190 1191void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { 1192 VisitDecl(D); 1193 Writer.AddStmt(D->getAssertExpr()); 1194 Writer.AddStmt(D->getMessage()); 1195 Writer.AddSourceLocation(D->getRParenLoc(), Record); 1196 Code = serialization::DECL_STATIC_ASSERT; 1197} 1198 1199/// \brief Emit the DeclContext part of a declaration context decl. 1200/// 1201/// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL 1202/// block for this declaration context is stored. May be 0 to indicate 1203/// that there are no declarations stored within this context. 1204/// 1205/// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE 1206/// block for this declaration context is stored. May be 0 to indicate 1207/// that there are no declarations visible from this context. Note 1208/// that this value will not be emitted for non-primary declaration 1209/// contexts. 1210void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, 1211 uint64_t VisibleOffset) { 1212 Record.push_back(LexicalOffset); 1213 Record.push_back(VisibleOffset); 1214} 1215 1216template <typename T> 1217void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) { 1218 enum { NoRedeclaration = 0, PointsToPrevious, PointsToLatest }; 1219 if (D->RedeclLink.getNext() == D) { 1220 Record.push_back(NoRedeclaration); 1221 } else { 1222 if (D->RedeclLink.NextIsPrevious()) { 1223 Record.push_back(PointsToPrevious); 1224 Writer.AddDeclRef(D->getPreviousDeclaration(), Record); 1225 Writer.AddDeclRef(D->getFirstDeclaration(), Record); 1226 } else { 1227 Record.push_back(PointsToLatest); 1228 Writer.AddDeclRef(D->RedeclLink.getPointer(), Record); 1229 } 1230 } 1231 1232 T *First = D->getFirstDeclaration(); 1233 T *ThisDecl = static_cast<T*>(D); 1234 // If this is a most recent redeclaration that is pointed to by a first decl 1235 // in a chained PCH, keep track of the association with the map so we can 1236 // update the first decl during AST reading. 1237 if (ThisDecl != First && First->getMostRecentDeclaration() == ThisDecl && 1238 First->isFromASTFile() && !ThisDecl->isFromASTFile()) { 1239 assert(Writer.FirstLatestDecls.find(First) == Writer.FirstLatestDecls.end() 1240 && "The latest is already set"); 1241 Writer.FirstLatestDecls[First] = ThisDecl; 1242 } 1243} 1244 1245//===----------------------------------------------------------------------===// 1246// ASTWriter Implementation 1247//===----------------------------------------------------------------------===// 1248 1249void ASTWriter::WriteDeclsBlockAbbrevs() { 1250 using namespace llvm; 1251 1252 BitCodeAbbrev *Abv; 1253 1254 // Abbreviation for DECL_FIELD 1255 Abv = new BitCodeAbbrev(); 1256 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD)); 1257 // Decl 1258 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1259 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1260 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1261 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1262 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1263 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1264 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1265 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1266 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1267 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1268 // NamedDecl 1269 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1270 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1271 // ValueDecl 1272 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1273 // DeclaratorDecl 1274 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1275 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1276 // FieldDecl 1277 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1278 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1279 // Type Source Info 1280 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1281 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1282 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1283 DeclFieldAbbrev = Stream.EmitAbbrev(Abv); 1284 1285 // Abbreviation for DECL_OBJC_IVAR 1286 Abv = new BitCodeAbbrev(); 1287 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR)); 1288 // Decl 1289 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1290 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1291 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1292 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1293 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1294 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1295 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1296 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1297 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1298 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1299 // NamedDecl 1300 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1301 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1302 // ValueDecl 1303 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1304 // DeclaratorDecl 1305 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1306 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1307 // FieldDecl 1308 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1309 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1310 // ObjC Ivar 1311 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl 1312 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize 1313 // Type Source Info 1314 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1315 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1316 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1317 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv); 1318 1319 // Abbreviation for DECL_ENUM 1320 Abv = new BitCodeAbbrev(); 1321 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM)); 1322 // Decl 1323 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1324 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1325 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1326 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1327 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1328 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1329 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1330 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1331 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1332 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1333 // NamedDecl 1334 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1335 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1336 // TypeDecl 1337 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1338 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1339 // Redeclarable 1340 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1341 // TagDecl 1342 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1343 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1344 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isDefinition 1345 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1346 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1347 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1348 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1349 // EnumDecl 1350 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef 1351 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType 1352 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType 1353 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits 1354 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits 1355 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped 1356 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag 1357 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed 1358 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum 1359 // DC 1360 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1361 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1362 DeclEnumAbbrev = Stream.EmitAbbrev(Abv); 1363 1364 // Abbreviation for DECL_RECORD 1365 Abv = new BitCodeAbbrev(); 1366 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD)); 1367 // Decl 1368 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1369 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1370 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1371 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1372 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1373 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1374 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1375 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1376 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1377 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1378 // NamedDecl 1379 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1380 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1381 // TypeDecl 1382 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1383 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1384 // Redeclarable 1385 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1386 // TagDecl 1387 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1388 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1389 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isDefinition 1390 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1391 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1392 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1393 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl 1394 // RecordDecl 1395 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember 1396 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion 1397 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember 1398 // DC 1399 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1400 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1401 DeclRecordAbbrev = Stream.EmitAbbrev(Abv); 1402 1403 // Abbreviation for DECL_PARM_VAR 1404 Abv = new BitCodeAbbrev(); 1405 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR)); 1406 // Decl 1407 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1408 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1409 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1410 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1411 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1412 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1413 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1414 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1415 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1416 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1417 // NamedDecl 1418 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1419 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1420 // ValueDecl 1421 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1422 // DeclaratorDecl 1423 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1424 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1425 // VarDecl 1426 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1427 Abv->Add(BitCodeAbbrevOp(0)); // StorageClass 1428 Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten 1429 Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified 1430 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer 1431 Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable 1432 Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable 1433 Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl 1434 Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong 1435 Abv->Add(BitCodeAbbrevOp(0)); // HasInit 1436 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo 1437 // ParmVarDecl 1438 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter 1439 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth 1440 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex 1441 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier 1442 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted 1443 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg 1444 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg 1445 // Type Source Info 1446 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1447 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1448 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1449 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv); 1450 1451 // Abbreviation for DECL_TYPEDEF 1452 Abv = new BitCodeAbbrev(); 1453 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF)); 1454 // Decl 1455 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1456 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1457 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 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(AS_none)); // C++ AccessSpecifier 1464 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1465 // NamedDecl 1466 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1467 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1468 // TypeDecl 1469 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1470 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1471 // TypedefDecl 1472 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1473 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1474 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv); 1475 1476 // Abbreviation for DECL_VAR 1477 Abv = new BitCodeAbbrev(); 1478 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR)); 1479 // Decl 1480 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1481 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext 1482 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1483 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) 1484 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1485 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1486 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1487 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1488 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1489 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1490 // NamedDecl 1491 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1492 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1493 // ValueDecl 1494 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1495 // DeclaratorDecl 1496 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1497 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1498 // VarDecl 1499 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1500 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass 1501 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten 1502 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified 1503 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer 1504 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable 1505 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable 1506 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl 1507 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 1508 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit 1509 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo 1510 // Type Source Info 1511 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1512 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1513 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1514 DeclVarAbbrev = Stream.EmitAbbrev(Abv); 1515 1516 // Abbreviation for EXPR_DECL_REF 1517 Abv = new BitCodeAbbrev(); 1518 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF)); 1519 //Stmt 1520 //Expr 1521 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1522 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1523 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1524 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1525 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1526 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1527 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1528 //DeclRefExpr 1529 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier 1530 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound 1531 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs 1532 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef 1533 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1534 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv); 1535 1536 // Abbreviation for EXPR_INTEGER_LITERAL 1537 Abv = new BitCodeAbbrev(); 1538 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL)); 1539 //Stmt 1540 //Expr 1541 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1542 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 1543 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 1544 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 1545 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 1546 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 1547 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 1548 //Integer Literal 1549 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1550 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width 1551 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value 1552 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv); 1553 1554 // Abbreviation for EXPR_CHARACTER_LITERAL 1555 Abv = new BitCodeAbbrev(); 1556 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_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 //Character Literal 1567 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue 1568 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 1569 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide 1570 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv); 1571 1572 Abv = new BitCodeAbbrev(); 1573 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL)); 1574 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1575 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv); 1576 1577 Abv = new BitCodeAbbrev(); 1578 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE)); 1579 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1580 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1581 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv); 1582} 1583 1584/// isRequiredDecl - Check if this is a "required" Decl, which must be seen by 1585/// consumers of the AST. 1586/// 1587/// Such decls will always be deserialized from the AST file, so we would like 1588/// this to be as restrictive as possible. Currently the predicate is driven by 1589/// code generation requirements, if other clients have a different notion of 1590/// what is "required" then we may have to consider an alternate scheme where 1591/// clients can iterate over the top-level decls and get information on them, 1592/// without necessary deserializing them. We could explicitly require such 1593/// clients to use a separate API call to "realize" the decl. This should be 1594/// relatively painless since they would presumably only do it for top-level 1595/// decls. 1596static bool isRequiredDecl(const Decl *D, ASTContext &Context) { 1597 // An ObjCMethodDecl is never considered as "required" because its 1598 // implementation container always is. 1599 1600 // File scoped assembly or obj-c implementation must be seen. 1601 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D)) 1602 return true; 1603 1604 return Context.DeclMustBeEmitted(D); 1605} 1606 1607void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) { 1608 // Switch case IDs are per Decl. 1609 ClearSwitchCaseIDs(); 1610 1611 RecordData Record; 1612 ASTDeclWriter W(*this, Context, Record); 1613 1614 // If this declaration is also a DeclContext, write blocks for the 1615 // declarations that lexically stored inside its context and those 1616 // declarations that are visible from its context. These blocks 1617 // are written before the declaration itself so that we can put 1618 // their offsets into the record for the declaration. 1619 uint64_t LexicalOffset = 0; 1620 uint64_t VisibleOffset = 0; 1621 DeclContext *DC = dyn_cast<DeclContext>(D); 1622 if (DC) { 1623 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC); 1624 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC); 1625 } 1626 1627 // Determine the ID for this declaration 1628 serialization::DeclID &IDR = DeclIDs[D]; 1629 if (IDR == 0) 1630 IDR = NextDeclID++; 1631 serialization::DeclID ID = IDR; 1632 1633 if (ID < FirstDeclID) { 1634 // We're replacing a decl in a previous file. 1635 ReplacedDecls.push_back(std::make_pair(ID, Stream.GetCurrentBitNo())); 1636 } else { 1637 unsigned Index = ID - FirstDeclID; 1638 1639 // Record the offset for this declaration 1640 if (DeclOffsets.size() == Index) 1641 DeclOffsets.push_back(Stream.GetCurrentBitNo()); 1642 else if (DeclOffsets.size() < Index) { 1643 DeclOffsets.resize(Index+1); 1644 DeclOffsets[Index] = Stream.GetCurrentBitNo(); 1645 } 1646 } 1647 1648 // Build and emit a record for this declaration 1649 Record.clear(); 1650 W.Code = (serialization::DeclCode)0; 1651 W.AbbrevToUse = 0; 1652 W.Visit(D); 1653 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset); 1654 1655 if (!W.Code) 1656 llvm::report_fatal_error(StringRef("unexpected declaration kind '") + 1657 D->getDeclKindName() + "'"); 1658 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse); 1659 1660 // Flush any expressions that were written as part of this declaration. 1661 FlushStmts(); 1662 1663 // Flush C++ base specifiers, if there are any. 1664 FlushCXXBaseSpecifiers(); 1665 1666 // Note "external" declarations so that we can add them to a record in the 1667 // AST file later. 1668 // 1669 // FIXME: This should be renamed, the predicate is much more complicated. 1670 if (isRequiredDecl(D, Context)) 1671 ExternalDefinitions.push_back(ID); 1672} 1673