1 //===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements serialization for Declarations.
12 //===----------------------------------------------------------------------===//
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"
24 using namespace clang;
25 using namespace serialization;
27 //===----------------------------------------------------------------------===//
28 // Declaration serialization
29 //===----------------------------------------------------------------------===//
32 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> {
36 typedef ASTWriter::RecordData RecordData;
40 serialization::DeclCode Code;
43 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, RecordData &Record)
44 : Writer(Writer), Context(Context), Record(Record) {
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);
102 void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
103 uint64_t VisibleOffset);
104 template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
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);
126 void ASTDeclWriter::Visit(Decl *D) {
127 DeclVisitor<ASTDeclWriter>::Visit(D);
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);
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());
146 void 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());
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);
161 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
162 llvm_unreachable("Translation units aren't directly serialized");
165 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) {
167 Writer.AddDeclarationName(D->getDeclName(), Record);
170 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) {
172 Writer.AddSourceLocation(D->getLocStart(), Record);
173 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
176 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) {
178 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
180 if (!D->hasAttrs() &&
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();
191 Code = serialization::DECL_TYPEDEF;
194 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) {
196 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
197 Code = serialization::DECL_TYPEALIAS;
200 void ASTDeclWriter::VisitTagDecl(TagDecl *D) {
202 VisitRedeclarable(D);
203 Record.push_back(D->getIdentifierNamespace());
204 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
205 Record.push_back(D->isCompleteDefinition());
206 Record.push_back(D->isEmbeddedInDeclarator());
207 Record.push_back(D->isFreeStanding());
208 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
209 Record.push_back(D->hasExtInfo());
211 Writer.AddQualifierInfo(*D->getExtInfo(), Record);
213 Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record);
216 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
218 Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record);
219 if (!D->getIntegerTypeSourceInfo())
220 Writer.AddTypeRef(D->getIntegerType(), Record);
221 Writer.AddTypeRef(D->getPromotionType(), Record);
222 Record.push_back(D->getNumPositiveBits());
223 Record.push_back(D->getNumNegativeBits());
224 Record.push_back(D->isScoped());
225 Record.push_back(D->isScopedUsingClassTag());
226 Record.push_back(D->isFixed());
227 Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record);
229 if (!D->hasAttrs() &&
233 D->RedeclLink.getNext() == D &&
234 !D->isInvalidDecl() &&
235 !D->isReferenced() &&
236 D->getAccess() == AS_none &&
237 !D->isModulePrivate() &&
238 !CXXRecordDecl::classofKind(D->getKind()) &&
239 !D->getIntegerTypeSourceInfo() &&
240 D->getDeclName().getNameKind() == DeclarationName::Identifier)
241 AbbrevToUse = Writer.getDeclEnumAbbrev();
243 Code = serialization::DECL_ENUM;
246 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) {
248 Record.push_back(D->hasFlexibleArrayMember());
249 Record.push_back(D->isAnonymousStructOrUnion());
250 Record.push_back(D->hasObjectMember());
252 if (!D->hasAttrs() &&
256 D->RedeclLink.getNext() == D &&
257 !D->isInvalidDecl() &&
258 !D->isReferenced() &&
259 D->getAccess() == AS_none &&
260 !D->isModulePrivate() &&
261 !CXXRecordDecl::classofKind(D->getKind()) &&
262 D->getDeclName().getNameKind() == DeclarationName::Identifier)
263 AbbrevToUse = Writer.getDeclRecordAbbrev();
265 Code = serialization::DECL_RECORD;
268 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) {
270 Writer.AddTypeRef(D->getType(), Record);
273 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) {
275 Record.push_back(D->getInitExpr()? 1 : 0);
276 if (D->getInitExpr())
277 Writer.AddStmt(D->getInitExpr());
278 Writer.AddAPSInt(D->getInitVal(), Record);
280 Code = serialization::DECL_ENUM_CONSTANT;
283 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
285 Writer.AddSourceLocation(D->getInnerLocStart(), Record);
286 Record.push_back(D->hasExtInfo());
288 Writer.AddQualifierInfo(*D->getExtInfo(), Record);
291 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
292 VisitDeclaratorDecl(D);
293 VisitRedeclarable(D);
295 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
296 Record.push_back(D->getIdentifierNamespace());
297 Record.push_back(D->getTemplatedKind());
298 switch (D->getTemplatedKind()) {
299 default: llvm_unreachable("Unhandled TemplatedKind!");
300 case FunctionDecl::TK_NonTemplate:
302 case FunctionDecl::TK_FunctionTemplate:
303 Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record);
305 case FunctionDecl::TK_MemberSpecialization: {
306 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo();
307 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record);
308 Record.push_back(MemberInfo->getTemplateSpecializationKind());
309 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record);
312 case FunctionDecl::TK_FunctionTemplateSpecialization: {
313 FunctionTemplateSpecializationInfo *
314 FTSInfo = D->getTemplateSpecializationInfo();
315 Writer.AddDeclRef(FTSInfo->getTemplate(), Record);
316 Record.push_back(FTSInfo->getTemplateSpecializationKind());
318 // Template arguments.
319 Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record);
321 // Template args as written.
322 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0);
323 if (FTSInfo->TemplateArgumentsAsWritten) {
324 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs);
325 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs;
327 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i],
329 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc,
331 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc,
335 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record);
337 if (D->isCanonicalDecl()) {
338 // Write the template that contains the specializations set. We will
339 // add a FunctionTemplateSpecializationInfo to it when reading.
340 Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record);
344 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
345 DependentFunctionTemplateSpecializationInfo *
346 DFTSInfo = D->getDependentSpecializationInfo();
349 Record.push_back(DFTSInfo->getNumTemplates());
350 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
351 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record);
354 Record.push_back(DFTSInfo->getNumTemplateArgs());
355 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i)
356 Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record);
357 Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record);
358 Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record);
363 // FunctionDecl's body is handled last at ASTWriterDecl::Visit,
364 // after everything else is written.
366 Record.push_back(D->getStorageClass()); // FIXME: stable encoding
367 Record.push_back(D->getStorageClassAsWritten());
368 Record.push_back(D->IsInline);
369 Record.push_back(D->isInlineSpecified());
370 Record.push_back(D->isVirtualAsWritten());
371 Record.push_back(D->isPure());
372 Record.push_back(D->hasInheritedPrototype());
373 Record.push_back(D->hasWrittenPrototype());
374 Record.push_back(D->isDeletedAsWritten());
375 Record.push_back(D->isTrivial());
376 Record.push_back(D->isDefaulted());
377 Record.push_back(D->isExplicitlyDefaulted());
378 Record.push_back(D->hasImplicitReturnZero());
379 Record.push_back(D->isConstexpr());
380 Writer.AddSourceLocation(D->getLocEnd(), Record);
382 Record.push_back(D->param_size());
383 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
385 Writer.AddDeclRef(*P, Record);
386 Code = serialization::DECL_FUNCTION;
389 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
391 // FIXME: convert to LazyStmtPtr?
392 // Unlike C/C++, method bodies will never be in header files.
393 bool HasBodyStuff = D->getBody() != 0 ||
394 D->getSelfDecl() != 0 || D->getCmdDecl() != 0;
395 Record.push_back(HasBodyStuff);
397 Writer.AddStmt(D->getBody());
398 Writer.AddDeclRef(D->getSelfDecl(), Record);
399 Writer.AddDeclRef(D->getCmdDecl(), Record);
401 Record.push_back(D->isInstanceMethod());
402 Record.push_back(D->isVariadic());
403 Record.push_back(D->isSynthesized());
404 Record.push_back(D->isDefined());
406 Record.push_back(D->IsRedeclaration);
407 Record.push_back(D->HasRedeclaration);
408 if (D->HasRedeclaration) {
409 assert(Context.getObjCMethodRedeclaration(D));
410 Writer.AddDeclRef(Context.getObjCMethodRedeclaration(D), Record);
413 // FIXME: stable encoding for @required/@optional
414 Record.push_back(D->getImplementationControl());
415 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway
416 Record.push_back(D->getObjCDeclQualifier());
417 Record.push_back(D->hasRelatedResultType());
418 Writer.AddTypeRef(D->getResultType(), Record);
419 Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record);
420 Writer.AddSourceLocation(D->getLocEnd(), Record);
421 Record.push_back(D->param_size());
422 for (ObjCMethodDecl::param_iterator P = D->param_begin(),
423 PEnd = D->param_end(); P != PEnd; ++P)
424 Writer.AddDeclRef(*P, Record);
426 Record.push_back(D->SelLocsKind);
427 unsigned NumStoredSelLocs = D->getNumStoredSelLocs();
428 SourceLocation *SelLocs = D->getStoredSelLocs();
429 Record.push_back(NumStoredSelLocs);
430 for (unsigned i = 0; i != NumStoredSelLocs; ++i)
431 Writer.AddSourceLocation(SelLocs[i], Record);
433 Code = serialization::DECL_OBJC_METHOD;
436 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
438 Writer.AddSourceLocation(D->getAtStartLoc(), Record);
439 Writer.AddSourceRange(D->getAtEndRange(), Record);
440 // Abstract class (no need to define a stable serialization::DECL code).
443 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
444 VisitObjCContainerDecl(D);
445 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
446 Writer.AddDeclRef(D->getSuperClass(), Record);
448 // Write out the protocols that are directly referenced by the @interface.
449 Record.push_back(D->ReferencedProtocols.size());
450 for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(),
451 PEnd = D->protocol_end();
453 Writer.AddDeclRef(*P, Record);
454 for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
455 PLEnd = D->protocol_loc_end();
457 Writer.AddSourceLocation(*PL, Record);
459 // Write out the protocols that are transitively referenced.
460 Record.push_back(D->AllReferencedProtocols.size());
461 for (ObjCList<ObjCProtocolDecl>::iterator
462 P = D->AllReferencedProtocols.begin(),
463 PEnd = D->AllReferencedProtocols.end();
465 Writer.AddDeclRef(*P, Record);
467 // Write out the ivars.
468 Record.push_back(D->ivar_size());
469 for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(),
470 IEnd = D->ivar_end(); I != IEnd; ++I)
471 Writer.AddDeclRef(*I, Record);
472 Writer.AddDeclRef(D->getCategoryList(), Record);
473 Record.push_back(D->isForwardDecl());
474 Record.push_back(D->isImplicitInterfaceDecl());
475 Writer.AddSourceLocation(D->getSuperClassLoc(), Record);
476 Writer.AddSourceLocation(D->getLocEnd(), Record);
477 Code = serialization::DECL_OBJC_INTERFACE;
480 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
482 // FIXME: stable encoding for @public/@private/@protected/@package
483 Record.push_back(D->getAccessControl());
484 Record.push_back(D->getSynthesize());
486 if (!D->hasAttrs() &&
489 !D->isInvalidDecl() &&
490 !D->isReferenced() &&
491 !D->isModulePrivate() &&
495 AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
497 Code = serialization::DECL_OBJC_IVAR;
500 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
501 VisitObjCContainerDecl(D);
502 Record.push_back(D->isForwardDecl());
503 Writer.AddSourceLocation(D->getLocEnd(), Record);
504 Record.push_back(D->protocol_size());
505 for (ObjCProtocolDecl::protocol_iterator
506 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
507 Writer.AddDeclRef(*I, Record);
508 for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
509 PLEnd = D->protocol_loc_end();
511 Writer.AddSourceLocation(*PL, Record);
512 Code = serialization::DECL_OBJC_PROTOCOL;
515 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
517 Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
520 void ASTDeclWriter::VisitObjCClassDecl(ObjCClassDecl *D) {
522 Writer.AddDeclRef(D->getForwardInterfaceDecl(), Record);
523 Writer.AddSourceLocation(D->getForwardDecl()->getLocation(), Record);
524 Code = serialization::DECL_OBJC_CLASS;
527 void ASTDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
529 Record.push_back(D->protocol_size());
530 for (ObjCForwardProtocolDecl::protocol_iterator
531 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
532 Writer.AddDeclRef(*I, Record);
533 for (ObjCForwardProtocolDecl::protocol_loc_iterator
534 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
536 Writer.AddSourceLocation(*PL, Record);
537 Code = serialization::DECL_OBJC_FORWARD_PROTOCOL;
540 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
541 VisitObjCContainerDecl(D);
542 Writer.AddDeclRef(D->getClassInterface(), Record);
543 Record.push_back(D->protocol_size());
544 for (ObjCCategoryDecl::protocol_iterator
545 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
546 Writer.AddDeclRef(*I, Record);
547 for (ObjCCategoryDecl::protocol_loc_iterator
548 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
550 Writer.AddSourceLocation(*PL, Record);
551 Writer.AddDeclRef(D->getNextClassCategory(), Record);
552 Record.push_back(D->hasSynthBitfield());
553 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
554 Code = serialization::DECL_OBJC_CATEGORY;
557 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
559 Writer.AddDeclRef(D->getClassInterface(), Record);
560 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
563 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
565 Writer.AddSourceLocation(D->getAtLoc(), Record);
566 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
567 // FIXME: stable encoding
568 Record.push_back((unsigned)D->getPropertyAttributes());
569 Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
570 // FIXME: stable encoding
571 Record.push_back((unsigned)D->getPropertyImplementation());
572 Writer.AddDeclarationName(D->getGetterName(), Record);
573 Writer.AddDeclarationName(D->getSetterName(), Record);
574 Writer.AddDeclRef(D->getGetterMethodDecl(), Record);
575 Writer.AddDeclRef(D->getSetterMethodDecl(), Record);
576 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
577 Code = serialization::DECL_OBJC_PROPERTY;
580 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
581 VisitObjCContainerDecl(D);
582 Writer.AddDeclRef(D->getClassInterface(), Record);
583 // Abstract class (no need to define a stable serialization::DECL code).
586 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
587 VisitObjCImplDecl(D);
588 Writer.AddIdentifierRef(D->getIdentifier(), Record);
589 Code = serialization::DECL_OBJC_CATEGORY_IMPL;
592 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
593 VisitObjCImplDecl(D);
594 Writer.AddDeclRef(D->getSuperClass(), Record);
595 Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers,
597 Record.push_back(D->hasSynthBitfield());
598 Code = serialization::DECL_OBJC_IMPLEMENTATION;
601 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
603 Writer.AddSourceLocation(D->getLocStart(), Record);
604 Writer.AddDeclRef(D->getPropertyDecl(), Record);
605 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
606 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record);
607 Writer.AddStmt(D->getGetterCXXConstructor());
608 Writer.AddStmt(D->getSetterCXXAssignment());
609 Code = serialization::DECL_OBJC_PROPERTY_IMPL;
612 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
613 VisitDeclaratorDecl(D);
614 Record.push_back(D->isMutable());
615 Record.push_back(D->getBitWidth()? 1 : D->hasInClassInitializer() ? 2 : 0);
616 if (D->getBitWidth())
617 Writer.AddStmt(D->getBitWidth());
618 else if (D->hasInClassInitializer())
619 Writer.AddStmt(D->getInClassInitializer());
620 if (!D->getDeclName())
621 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record);
623 if (!D->hasAttrs() &&
626 !D->isInvalidDecl() &&
627 !D->isReferenced() &&
628 !D->isModulePrivate() &&
630 !D->hasInClassInitializer() &&
632 !ObjCIvarDecl::classofKind(D->getKind()) &&
633 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
635 AbbrevToUse = Writer.getDeclFieldAbbrev();
637 Code = serialization::DECL_FIELD;
640 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
642 Record.push_back(D->getChainingSize());
644 for (IndirectFieldDecl::chain_iterator
645 P = D->chain_begin(),
646 PEnd = D->chain_end(); P != PEnd; ++P)
647 Writer.AddDeclRef(*P, Record);
648 Code = serialization::DECL_INDIRECTFIELD;
651 void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
652 VisitDeclaratorDecl(D);
653 VisitRedeclarable(D);
654 Record.push_back(D->getStorageClass()); // FIXME: stable encoding
655 Record.push_back(D->getStorageClassAsWritten());
656 Record.push_back(D->isThreadSpecified());
657 Record.push_back(D->hasCXXDirectInitializer());
658 Record.push_back(D->isExceptionVariable());
659 Record.push_back(D->isNRVOVariable());
660 Record.push_back(D->isCXXForRangeDecl());
661 Record.push_back(D->isARCPseudoStrong());
662 Record.push_back(D->getInit() ? 1 : 0);
664 Writer.AddStmt(D->getInit());
666 MemberSpecializationInfo *SpecInfo
667 = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0;
668 Record.push_back(SpecInfo != 0);
670 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record);
671 Record.push_back(SpecInfo->getTemplateSpecializationKind());
672 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record);
675 if (!D->hasAttrs() &&
678 !D->isInvalidDecl() &&
679 !D->isReferenced() &&
680 D->getAccess() == AS_none &&
681 !D->isModulePrivate() &&
682 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
684 D->RedeclLink.getNext() == D &&
685 !D->hasCXXDirectInitializer() &&
687 !isa<ParmVarDecl>(D) &&
689 AbbrevToUse = Writer.getDeclVarAbbrev();
691 Code = serialization::DECL_VAR;
694 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
696 Code = serialization::DECL_IMPLICIT_PARAM;
699 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
701 Record.push_back(D->isObjCMethodParameter());
702 Record.push_back(D->getFunctionScopeDepth());
703 Record.push_back(D->getFunctionScopeIndex());
704 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
705 Record.push_back(D->isKNRPromoted());
706 Record.push_back(D->hasInheritedDefaultArg());
707 Record.push_back(D->hasUninstantiatedDefaultArg());
708 if (D->hasUninstantiatedDefaultArg())
709 Writer.AddStmt(D->getUninstantiatedDefaultArg());
710 Code = serialization::DECL_PARM_VAR;
712 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
714 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
715 // we dynamically check for the properties that we optimize for, but don't
716 // know are true of all PARM_VAR_DECLs.
717 if (!D->hasAttrs() &&
721 D->getAccess() == AS_none &&
722 !D->isModulePrivate() &&
723 D->getStorageClass() == 0 &&
724 !D->hasCXXDirectInitializer() && // Can params have this ever?
725 D->getFunctionScopeDepth() == 0 &&
726 D->getObjCDeclQualifier() == 0 &&
727 !D->isKNRPromoted() &&
728 !D->hasInheritedDefaultArg() &&
730 !D->hasUninstantiatedDefaultArg()) // No default expr.
731 AbbrevToUse = Writer.getDeclParmVarAbbrev();
733 // Check things we know are true of *every* PARM_VAR_DECL, which is more than
734 // just us assuming it.
735 assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls");
736 assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread");
737 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
738 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
739 assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl");
740 assert(!D->isStaticDataMember() &&
741 "PARM_VAR_DECL can't be static data member");
744 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
746 Writer.AddStmt(D->getAsmString());
747 Writer.AddSourceLocation(D->getRParenLoc(), Record);
748 Code = serialization::DECL_FILE_SCOPE_ASM;
751 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
753 Writer.AddStmt(D->getBody());
754 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record);
755 Record.push_back(D->param_size());
756 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
758 Writer.AddDeclRef(*P, Record);
759 Record.push_back(D->capturesCXXThis());
760 Record.push_back(D->getNumCaptures());
761 for (BlockDecl::capture_iterator
762 i = D->capture_begin(), e = D->capture_end(); i != e; ++i) {
763 const BlockDecl::Capture &capture = *i;
764 Writer.AddDeclRef(capture.getVariable(), Record);
767 if (capture.isByRef()) flags |= 1;
768 if (capture.isNested()) flags |= 2;
769 if (capture.hasCopyExpr()) flags |= 4;
770 Record.push_back(flags);
772 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr());
775 Code = serialization::DECL_BLOCK;
778 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
780 Record.push_back(D->getLanguage());
781 Writer.AddSourceLocation(D->getExternLoc(), Record);
782 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
783 Code = serialization::DECL_LINKAGE_SPEC;
786 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
788 Writer.AddSourceLocation(D->getLocStart(), Record);
789 Code = serialization::DECL_LABEL;
793 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
795 Record.push_back(D->isInline());
796 Writer.AddSourceLocation(D->getLocStart(), Record);
797 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
798 Writer.AddDeclRef(D->getNextNamespace(), Record);
800 // Only write one reference--original or anonymous
801 Record.push_back(D->isOriginalNamespace());
802 if (D->isOriginalNamespace())
803 Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
805 Writer.AddDeclRef(D->getOriginalNamespace(), Record);
806 Code = serialization::DECL_NAMESPACE;
808 if (Writer.hasChain() && !D->isOriginalNamespace() &&
809 D->getOriginalNamespace()->isFromASTFile()) {
810 NamespaceDecl *NS = D->getOriginalNamespace();
811 Writer.AddUpdatedDeclContext(NS);
813 // Make sure all visible decls are written. They will be recorded later.
814 NS->lookup(DeclarationName());
815 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(NS->getLookupPtr());
817 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end();
819 DeclContext::lookup_result Result = D->second.getLookupResult();
820 while (Result.first != Result.second) {
821 Writer.GetDeclRef(*Result.first);
828 if (Writer.hasChain() && D->isAnonymousNamespace() && !D->getNextNamespace()){
829 // This is a most recent reopening of the anonymous namespace. If its parent
830 // is in a previous PCH (or is the TU), mark that parent for update, because
831 // the original namespace always points to the latest re-opening of its
832 // anonymous namespace.
833 Decl *Parent = cast<Decl>(
834 D->getParent()->getRedeclContext()->getPrimaryContext());
835 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) {
836 ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent];
837 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE);
838 Writer.AddDeclRef(D, Record);
843 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
845 Writer.AddSourceLocation(D->getNamespaceLoc(), Record);
846 Writer.AddSourceLocation(D->getTargetNameLoc(), Record);
847 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
848 Writer.AddDeclRef(D->getNamespace(), Record);
849 Code = serialization::DECL_NAMESPACE_ALIAS;
852 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
854 Writer.AddSourceLocation(D->getUsingLocation(), Record);
855 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
856 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
857 Writer.AddDeclRef(D->FirstUsingShadow, Record);
858 Record.push_back(D->isTypeName());
859 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record);
860 Code = serialization::DECL_USING;
863 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
865 Writer.AddDeclRef(D->getTargetDecl(), Record);
866 Writer.AddDeclRef(D->UsingOrNextShadow, Record);
867 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record);
868 Code = serialization::DECL_USING_SHADOW;
871 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
873 Writer.AddSourceLocation(D->getUsingLoc(), Record);
874 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record);
875 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
876 Writer.AddDeclRef(D->getNominatedNamespace(), Record);
877 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record);
878 Code = serialization::DECL_USING_DIRECTIVE;
881 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
883 Writer.AddSourceLocation(D->getUsingLoc(), Record);
884 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
885 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
886 Code = serialization::DECL_UNRESOLVED_USING_VALUE;
889 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
890 UnresolvedUsingTypenameDecl *D) {
892 Writer.AddSourceLocation(D->getTypenameLoc(), Record);
893 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
894 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
897 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
900 CXXRecordDecl *DefinitionDecl = 0;
901 if (D->DefinitionData)
902 DefinitionDecl = D->DefinitionData->Definition;
903 Writer.AddDeclRef(DefinitionDecl, Record);
904 if (D == DefinitionDecl)
905 Writer.AddCXXDefinitionData(D, Record);
908 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
910 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
911 Record.push_back(CXXRecTemplate);
912 Writer.AddDeclRef(TemplD, Record);
913 } else if (MemberSpecializationInfo *MSInfo
914 = D->getMemberSpecializationInfo()) {
915 Record.push_back(CXXRecMemberSpecialization);
916 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record);
917 Record.push_back(MSInfo->getTemplateSpecializationKind());
918 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record);
920 Record.push_back(CXXRecNotTemplate);
923 // Store the key function to avoid deserializing every method so we can
925 if (D->IsCompleteDefinition)
926 Writer.AddDeclRef(Context.getKeyFunction(D), Record);
928 Code = serialization::DECL_CXX_RECORD;
931 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
932 VisitFunctionDecl(D);
933 Record.push_back(D->size_overridden_methods());
934 for (CXXMethodDecl::method_iterator
935 I = D->begin_overridden_methods(), E = D->end_overridden_methods();
937 Writer.AddDeclRef(*I, Record);
938 Code = serialization::DECL_CXX_METHOD;
941 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
942 VisitCXXMethodDecl(D);
944 Record.push_back(D->IsExplicitSpecified);
945 Record.push_back(D->ImplicitlyDefined);
946 Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers,
949 Code = serialization::DECL_CXX_CONSTRUCTOR;
952 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
953 VisitCXXMethodDecl(D);
955 Record.push_back(D->ImplicitlyDefined);
956 Writer.AddDeclRef(D->OperatorDelete, Record);
958 Code = serialization::DECL_CXX_DESTRUCTOR;
961 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
962 VisitCXXMethodDecl(D);
963 Record.push_back(D->IsExplicitSpecified);
964 Code = serialization::DECL_CXX_CONVERSION;
967 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
969 Writer.AddSourceLocation(D->getColonLoc(), Record);
970 Code = serialization::DECL_ACCESS_SPEC;
973 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) {
975 Record.push_back(D->Friend.is<TypeSourceInfo*>());
976 if (D->Friend.is<TypeSourceInfo*>())
977 Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record);
979 Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record);
980 Writer.AddDeclRef(D->getNextFriend(), Record);
981 Record.push_back(D->UnsupportedFriend);
982 Writer.AddSourceLocation(D->FriendLoc, Record);
983 Code = serialization::DECL_FRIEND;
986 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
988 Record.push_back(D->getNumTemplateParameters());
989 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
990 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record);
991 Record.push_back(D->getFriendDecl() != 0);
992 if (D->getFriendDecl())
993 Writer.AddDeclRef(D->getFriendDecl(), Record);
995 Writer.AddTypeSourceInfo(D->getFriendType(), Record);
996 Writer.AddSourceLocation(D->getFriendLoc(), Record);
997 Code = serialization::DECL_FRIEND_TEMPLATE;
1000 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
1003 Writer.AddDeclRef(D->getTemplatedDecl(), Record);
1004 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
1007 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
1008 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
1009 // getCommonPtr() can be used while this is still initializing.
1011 Writer.AddDeclRef(D->getPreviousDeclaration(), Record);
1012 if (D->getPreviousDeclaration())
1013 Writer.AddDeclRef(D->getFirstDeclaration(), Record);
1015 if (D->getPreviousDeclaration() == 0) {
1016 // This TemplateDecl owns the CommonPtr; write it.
1017 assert(D->isCanonicalDecl());
1019 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record);
1020 if (D->getInstantiatedFromMemberTemplate())
1021 Record.push_back(D->isMemberSpecialization());
1023 Writer.AddDeclRef(D->getCommonPtr()->Latest, Record);
1025 RedeclarableTemplateDecl *First = D->getFirstDeclaration();
1027 // If this is a most recent redeclaration that is pointed to by a first decl
1028 // in a chained PCH, keep track of the association with the map so we can
1029 // update the first decl during AST reading.
1030 if (First->getMostRecentDeclaration() == D &&
1031 First->isFromASTFile() && !D->isFromASTFile()) {
1032 assert(Writer.FirstLatestDecls.find(First)==Writer.FirstLatestDecls.end()
1033 && "The latest is already set");
1034 Writer.FirstLatestDecls[First] = D;
1038 VisitTemplateDecl(D);
1039 Record.push_back(D->getIdentifierNamespace());
1042 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
1043 VisitRedeclarableTemplateDecl(D);
1045 if (D->getPreviousDeclaration() == 0) {
1046 typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy;
1047 CTSDSetTy &CTSDSet = D->getSpecializations();
1048 Record.push_back(CTSDSet.size());
1049 for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) {
1050 assert(I->isCanonicalDecl() && "Expected only canonical decls in set");
1051 Writer.AddDeclRef(&*I, Record);
1054 typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy;
1055 CTPSDSetTy &CTPSDSet = D->getPartialSpecializations();
1056 Record.push_back(CTPSDSet.size());
1057 for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) {
1058 assert(I->isCanonicalDecl() && "Expected only canonical decls in set");
1059 Writer.AddDeclRef(&*I, Record);
1062 // InjectedClassNameType is computed, no need to write it.
1064 Code = serialization::DECL_CLASS_TEMPLATE;
1067 void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
1068 ClassTemplateSpecializationDecl *D) {
1069 VisitCXXRecordDecl(D);
1071 llvm::PointerUnion<ClassTemplateDecl *,
1072 ClassTemplatePartialSpecializationDecl *> InstFrom
1073 = D->getSpecializedTemplateOrPartial();
1074 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) {
1075 Writer.AddDeclRef(InstFromD, Record);
1077 Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(),
1079 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record);
1083 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record);
1084 if (D->getTypeAsWritten()) {
1085 Writer.AddSourceLocation(D->getExternLoc(), Record);
1086 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record);
1089 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record);
1090 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record);
1091 Record.push_back(D->getSpecializationKind());
1093 if (D->isCanonicalDecl()) {
1094 // When reading, we'll add it to the folding set of the following template.
1095 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record);
1098 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
1101 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl(
1102 ClassTemplatePartialSpecializationDecl *D) {
1103 VisitClassTemplateSpecializationDecl(D);
1105 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
1107 Record.push_back(D->getNumTemplateArgsAsWritten());
1108 for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i)
1109 Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record);
1111 Record.push_back(D->getSequenceNumber());
1113 // These are read/set from/to the first declaration.
1114 if (D->getPreviousDeclaration() == 0) {
1115 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record);
1116 Record.push_back(D->isMemberSpecialization());
1119 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
1122 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl(
1123 ClassScopeFunctionSpecializationDecl *D) {
1125 Writer.AddDeclRef(D->getSpecialization(), Record);
1126 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION;
1130 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
1131 VisitRedeclarableTemplateDecl(D);
1133 if (D->getPreviousDeclaration() == 0) {
1134 // This FunctionTemplateDecl owns the CommonPtr; write it.
1136 // Write the function specialization declarations.
1137 Record.push_back(D->getSpecializations().size());
1138 for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator
1139 I = D->getSpecializations().begin(),
1140 E = D->getSpecializations().end() ; I != E; ++I) {
1141 assert(I->Function->isCanonicalDecl() &&
1142 "Expected only canonical decls in set");
1143 Writer.AddDeclRef(I->Function, Record);
1146 Code = serialization::DECL_FUNCTION_TEMPLATE;
1149 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
1152 Record.push_back(D->wasDeclaredWithTypename());
1153 Record.push_back(D->defaultArgumentWasInherited());
1154 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record);
1156 Code = serialization::DECL_TEMPLATE_TYPE_PARM;
1159 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
1160 // For an expanded parameter pack, record the number of expansion types here
1161 // so that it's easier for
1162 if (D->isExpandedParameterPack())
1163 Record.push_back(D->getNumExpansionTypes());
1165 VisitDeclaratorDecl(D);
1166 // TemplateParmPosition.
1167 Record.push_back(D->getDepth());
1168 Record.push_back(D->getPosition());
1170 if (D->isExpandedParameterPack()) {
1171 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
1172 Writer.AddTypeRef(D->getExpansionType(I), Record);
1173 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record);
1176 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
1178 // Rest of NonTypeTemplateParmDecl.
1179 Record.push_back(D->isParameterPack());
1180 Record.push_back(D->getDefaultArgument() != 0);
1181 if (D->getDefaultArgument()) {
1182 Writer.AddStmt(D->getDefaultArgument());
1183 Record.push_back(D->defaultArgumentWasInherited());
1185 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
1189 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
1190 VisitTemplateDecl(D);
1191 // TemplateParmPosition.
1192 Record.push_back(D->getDepth());
1193 Record.push_back(D->getPosition());
1194 // Rest of TemplateTemplateParmDecl.
1195 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record);
1196 Record.push_back(D->defaultArgumentWasInherited());
1197 Record.push_back(D->isParameterPack());
1198 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
1201 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1202 VisitRedeclarableTemplateDecl(D);
1203 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
1206 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
1208 Writer.AddStmt(D->getAssertExpr());
1209 Writer.AddStmt(D->getMessage());
1210 Writer.AddSourceLocation(D->getRParenLoc(), Record);
1211 Code = serialization::DECL_STATIC_ASSERT;
1214 /// \brief Emit the DeclContext part of a declaration context decl.
1216 /// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL
1217 /// block for this declaration context is stored. May be 0 to indicate
1218 /// that there are no declarations stored within this context.
1220 /// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE
1221 /// block for this declaration context is stored. May be 0 to indicate
1222 /// that there are no declarations visible from this context. Note
1223 /// that this value will not be emitted for non-primary declaration
1225 void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
1226 uint64_t VisibleOffset) {
1227 Record.push_back(LexicalOffset);
1228 Record.push_back(VisibleOffset);
1231 template <typename T>
1232 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
1233 enum { NoRedeclaration = 0, PointsToPrevious, PointsToLatest };
1234 if (D->RedeclLink.getNext() == D) {
1235 Record.push_back(NoRedeclaration);
1237 if (D->RedeclLink.NextIsPrevious()) {
1238 Record.push_back(PointsToPrevious);
1239 Writer.AddDeclRef(D->getPreviousDeclaration(), Record);
1240 Writer.AddDeclRef(D->getFirstDeclaration(), Record);
1242 Record.push_back(PointsToLatest);
1243 Writer.AddDeclRef(D->RedeclLink.getPointer(), Record);
1247 T *First = D->getFirstDeclaration();
1248 T *ThisDecl = static_cast<T*>(D);
1249 // If this is a most recent redeclaration that is pointed to by a first decl
1250 // in a chained PCH, keep track of the association with the map so we can
1251 // update the first decl during AST reading.
1252 if (ThisDecl != First && First->getMostRecentDeclaration() == ThisDecl &&
1253 First->isFromASTFile() && !ThisDecl->isFromASTFile()) {
1254 assert(Writer.FirstLatestDecls.find(First) == Writer.FirstLatestDecls.end()
1255 && "The latest is already set");
1256 Writer.FirstLatestDecls[First] = ThisDecl;
1260 //===----------------------------------------------------------------------===//
1261 // ASTWriter Implementation
1262 //===----------------------------------------------------------------------===//
1264 void ASTWriter::WriteDeclsBlockAbbrevs() {
1265 using namespace llvm;
1269 // Abbreviation for DECL_FIELD
1270 Abv = new BitCodeAbbrev();
1271 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
1273 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1274 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1275 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1276 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1277 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1278 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1279 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1280 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1281 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1282 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1284 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1285 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1287 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1289 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1290 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1292 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1293 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1295 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1296 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1297 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1298 DeclFieldAbbrev = Stream.EmitAbbrev(Abv);
1300 // Abbreviation for DECL_OBJC_IVAR
1301 Abv = new BitCodeAbbrev();
1302 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
1304 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1305 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1306 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1307 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1308 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1309 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1310 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1311 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1312 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1313 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1315 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1316 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1318 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1320 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1321 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1323 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1324 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1326 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
1327 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
1329 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1330 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1331 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1332 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv);
1334 // Abbreviation for DECL_ENUM
1335 Abv = new BitCodeAbbrev();
1336 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
1338 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1339 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1340 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1341 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1342 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1343 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1344 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1345 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1346 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1347 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1349 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1350 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1352 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1353 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1355 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1357 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1358 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1359 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1360 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1361 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1362 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1363 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1364 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl
1366 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
1367 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
1368 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
1369 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
1370 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
1371 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
1372 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
1373 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
1374 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
1376 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1377 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1378 DeclEnumAbbrev = Stream.EmitAbbrev(Abv);
1380 // Abbreviation for DECL_RECORD
1381 Abv = new BitCodeAbbrev();
1382 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
1384 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1385 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1386 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1387 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1388 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1389 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1390 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1391 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1392 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1393 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1395 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1396 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1398 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1399 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1401 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1403 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1404 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1405 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1406 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1407 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1408 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1409 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1410 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl
1412 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
1413 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
1414 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
1416 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1417 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1418 DeclRecordAbbrev = Stream.EmitAbbrev(Abv);
1420 // Abbreviation for DECL_PARM_VAR
1421 Abv = new BitCodeAbbrev();
1422 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
1424 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1425 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1426 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1427 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1428 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1429 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1430 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1431 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1432 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1433 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1435 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1436 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1438 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1440 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1441 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1443 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1444 Abv->Add(BitCodeAbbrevOp(0)); // StorageClass
1445 Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten
1446 Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified
1447 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer
1448 Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable
1449 Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable
1450 Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl
1451 Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong
1452 Abv->Add(BitCodeAbbrevOp(0)); // HasInit
1453 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
1455 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
1456 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
1457 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
1458 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
1459 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
1460 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
1461 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
1463 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1464 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1465 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1466 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv);
1468 // Abbreviation for DECL_TYPEDEF
1469 Abv = new BitCodeAbbrev();
1470 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
1472 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1473 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1474 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1475 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1476 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1477 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1478 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1479 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1480 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1481 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1483 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1484 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1486 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1487 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1489 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1490 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1491 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv);
1493 // Abbreviation for DECL_VAR
1494 Abv = new BitCodeAbbrev();
1495 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
1497 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1498 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1499 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1500 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1501 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1502 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1503 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1504 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1505 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1506 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1508 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1509 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1511 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1513 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1514 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1516 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1517 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass
1518 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten
1519 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified
1520 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer
1521 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
1522 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
1523 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
1524 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
1525 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit
1526 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo
1528 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1529 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1530 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1531 DeclVarAbbrev = Stream.EmitAbbrev(Abv);
1533 // Abbreviation for EXPR_DECL_REF
1534 Abv = new BitCodeAbbrev();
1535 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
1538 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1539 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1540 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1541 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1542 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1543 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1544 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1546 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
1547 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
1548 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
1549 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates
1550 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
1551 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1552 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv);
1554 // Abbreviation for EXPR_INTEGER_LITERAL
1555 Abv = new BitCodeAbbrev();
1556 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
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
1567 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1568 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
1569 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
1570 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv);
1572 // Abbreviation for EXPR_CHARACTER_LITERAL
1573 Abv = new BitCodeAbbrev();
1574 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
1577 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1578 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1579 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1580 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1581 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1582 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1583 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1585 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
1586 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1587 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide
1588 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv);
1590 Abv = new BitCodeAbbrev();
1591 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
1592 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1593 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv);
1595 Abv = new BitCodeAbbrev();
1596 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
1597 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1598 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1599 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv);
1602 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
1603 /// consumers of the AST.
1605 /// Such decls will always be deserialized from the AST file, so we would like
1606 /// this to be as restrictive as possible. Currently the predicate is driven by
1607 /// code generation requirements, if other clients have a different notion of
1608 /// what is "required" then we may have to consider an alternate scheme where
1609 /// clients can iterate over the top-level decls and get information on them,
1610 /// without necessary deserializing them. We could explicitly require such
1611 /// clients to use a separate API call to "realize" the decl. This should be
1612 /// relatively painless since they would presumably only do it for top-level
1614 static bool isRequiredDecl(const Decl *D, ASTContext &Context) {
1615 // An ObjCMethodDecl is never considered as "required" because its
1616 // implementation container always is.
1618 // File scoped assembly or obj-c implementation must be seen.
1619 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D))
1622 return Context.DeclMustBeEmitted(D);
1625 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
1626 // Switch case IDs are per Decl.
1627 ClearSwitchCaseIDs();
1630 ASTDeclWriter W(*this, Context, Record);
1632 // If this declaration is also a DeclContext, write blocks for the
1633 // declarations that lexically stored inside its context and those
1634 // declarations that are visible from its context. These blocks
1635 // are written before the declaration itself so that we can put
1636 // their offsets into the record for the declaration.
1637 uint64_t LexicalOffset = 0;
1638 uint64_t VisibleOffset = 0;
1639 DeclContext *DC = dyn_cast<DeclContext>(D);
1641 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC);
1642 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC);
1645 // Determine the ID for this declaration
1646 serialization::DeclID &IDR = DeclIDs[D];
1649 serialization::DeclID ID = IDR;
1651 if (ID < FirstDeclID) {
1652 // We're replacing a decl in a previous file.
1653 ReplacedDecls.push_back(std::make_pair(ID, Stream.GetCurrentBitNo()));
1655 unsigned Index = ID - FirstDeclID;
1657 // Record the offset for this declaration
1658 if (DeclOffsets.size() == Index)
1659 DeclOffsets.push_back(Stream.GetCurrentBitNo());
1660 else if (DeclOffsets.size() < Index) {
1661 DeclOffsets.resize(Index+1);
1662 DeclOffsets[Index] = Stream.GetCurrentBitNo();
1666 // Build and emit a record for this declaration
1668 W.Code = (serialization::DeclCode)0;
1671 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset);
1674 llvm::report_fatal_error(StringRef("unexpected declaration kind '") +
1675 D->getDeclKindName() + "'");
1676 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse);
1678 // Flush any expressions that were written as part of this declaration.
1681 // Flush C++ base specifiers, if there are any.
1682 FlushCXXBaseSpecifiers();
1684 // Note "external" declarations so that we can add them to a record in the
1687 // FIXME: This should be renamed, the predicate is much more complicated.
1688 if (isRequiredDecl(D, Context))
1689 ExternalDefinitions.push_back(ID);