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 VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
69 void VisitValueDecl(ValueDecl *D);
70 void VisitEnumConstantDecl(EnumConstantDecl *D);
71 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
72 void VisitDeclaratorDecl(DeclaratorDecl *D);
73 void VisitFunctionDecl(FunctionDecl *D);
74 void VisitCXXMethodDecl(CXXMethodDecl *D);
75 void VisitCXXConstructorDecl(CXXConstructorDecl *D);
76 void VisitCXXDestructorDecl(CXXDestructorDecl *D);
77 void VisitCXXConversionDecl(CXXConversionDecl *D);
78 void VisitFieldDecl(FieldDecl *D);
79 void VisitIndirectFieldDecl(IndirectFieldDecl *D);
80 void VisitVarDecl(VarDecl *D);
81 void VisitImplicitParamDecl(ImplicitParamDecl *D);
82 void VisitParmVarDecl(ParmVarDecl *D);
83 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
84 void VisitTemplateDecl(TemplateDecl *D);
85 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
86 void VisitClassTemplateDecl(ClassTemplateDecl *D);
87 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
88 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
89 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
90 void VisitUsingDecl(UsingDecl *D);
91 void VisitUsingShadowDecl(UsingShadowDecl *D);
92 void VisitLinkageSpecDecl(LinkageSpecDecl *D);
93 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
94 void VisitAccessSpecDecl(AccessSpecDecl *D);
95 void VisitFriendDecl(FriendDecl *D);
96 void VisitFriendTemplateDecl(FriendTemplateDecl *D);
97 void VisitStaticAssertDecl(StaticAssertDecl *D);
98 void VisitBlockDecl(BlockDecl *D);
100 void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
101 uint64_t VisibleOffset);
102 template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
105 // FIXME: Put in the same order is DeclNodes.td?
106 void VisitObjCMethodDecl(ObjCMethodDecl *D);
107 void VisitObjCContainerDecl(ObjCContainerDecl *D);
108 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
109 void VisitObjCIvarDecl(ObjCIvarDecl *D);
110 void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
111 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
112 void VisitObjCClassDecl(ObjCClassDecl *D);
113 void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
114 void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
115 void VisitObjCImplDecl(ObjCImplDecl *D);
116 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
117 void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
118 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
119 void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
120 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
124 void ASTDeclWriter::Visit(Decl *D) {
125 DeclVisitor<ASTDeclWriter>::Visit(D);
127 // Source locations require array (variable-length) abbreviations. The
128 // abbreviation infrastructure requires that arrays are encoded last, so
129 // we handle it here in the case of those classes derived from DeclaratorDecl
130 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){
131 Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record);
134 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs
135 // have been written. We want it last because we will not read it back when
136 // retrieving it from the AST, we'll just lazily set the offset.
137 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
138 Record.push_back(FD->doesThisDeclarationHaveABody());
139 if (FD->doesThisDeclarationHaveABody())
140 Writer.AddStmt(FD->getBody());
144 void ASTDeclWriter::VisitDecl(Decl *D) {
145 Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record);
146 Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record);
147 Writer.AddSourceLocation(D->getLocation(), Record);
148 Record.push_back(D->isInvalidDecl());
149 Record.push_back(D->hasAttrs());
151 Writer.WriteAttributes(D->getAttrs(), Record);
152 Record.push_back(D->isImplicit());
153 Record.push_back(D->isUsed(false));
154 Record.push_back(D->isReferenced());
155 Record.push_back(D->getAccess());
156 Record.push_back(D->getPCHLevel());
159 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
161 Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
162 Code = serialization::DECL_TRANSLATION_UNIT;
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->getPCHLevel() == 0 &&
184 D->RedeclLink.getNext() == D &&
185 !D->isInvalidDecl() &&
186 !D->isReferenced() &&
187 D->getAccess() == AS_none &&
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->isDefinition());
206 Record.push_back(D->isEmbeddedInDeclarator());
207 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
208 Record.push_back(D->hasExtInfo());
210 Writer.AddQualifierInfo(*D->getExtInfo(), Record);
212 Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record);
215 void ASTDeclWriter::VisitEnumDecl(EnumDecl *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);
228 if (!D->hasAttrs() &&
231 D->getPCHLevel() == 0 &&
233 D->RedeclLink.getNext() == D &&
234 !D->isInvalidDecl() &&
235 !D->isReferenced() &&
236 D->getAccess() == AS_none &&
237 !CXXRecordDecl::classofKind(D->getKind()) &&
238 !D->getIntegerTypeSourceInfo() &&
239 D->getDeclName().getNameKind() == DeclarationName::Identifier)
240 AbbrevToUse = Writer.getDeclEnumAbbrev();
242 Code = serialization::DECL_ENUM;
245 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) {
247 Record.push_back(D->hasFlexibleArrayMember());
248 Record.push_back(D->isAnonymousStructOrUnion());
249 Record.push_back(D->hasObjectMember());
251 if (!D->hasAttrs() &&
254 D->getPCHLevel() == 0 &&
256 D->RedeclLink.getNext() == D &&
257 !D->isInvalidDecl() &&
258 !D->isReferenced() &&
259 D->getAccess() == AS_none &&
260 !CXXRecordDecl::classofKind(D->getKind()) &&
261 D->getDeclName().getNameKind() == DeclarationName::Identifier)
262 AbbrevToUse = Writer.getDeclRecordAbbrev();
264 Code = serialization::DECL_RECORD;
267 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) {
269 Writer.AddTypeRef(D->getType(), Record);
272 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) {
274 Record.push_back(D->getInitExpr()? 1 : 0);
275 if (D->getInitExpr())
276 Writer.AddStmt(D->getInitExpr());
277 Writer.AddAPSInt(D->getInitVal(), Record);
279 Code = serialization::DECL_ENUM_CONSTANT;
282 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
284 Writer.AddSourceLocation(D->getInnerLocStart(), Record);
285 Record.push_back(D->hasExtInfo());
287 Writer.AddQualifierInfo(*D->getExtInfo(), Record);
290 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
291 VisitDeclaratorDecl(D);
292 VisitRedeclarable(D);
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: assert(false && "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->size());
325 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->size(); i!=e; ++i)
326 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i],
328 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->getLAngleLoc(),
330 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->getRAngleLoc(),
334 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record);
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);
343 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
344 DependentFunctionTemplateSpecializationInfo *
345 DFTSInfo = D->getDependentSpecializationInfo();
348 Record.push_back(DFTSInfo->getNumTemplates());
349 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
350 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record);
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);
362 // FunctionDecl's body is handled last at ASTWriterDecl::Visit,
363 // after everything else is written.
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 Writer.AddSourceLocation(D->getLocEnd(), Record);
380 Record.push_back(D->param_size());
381 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
383 Writer.AddDeclRef(*P, Record);
384 Code = serialization::DECL_FUNCTION;
387 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
389 // FIXME: convert to LazyStmtPtr?
390 // Unlike C/C++, method bodies will never be in header files.
391 bool HasBodyStuff = D->getBody() != 0 ||
392 D->getSelfDecl() != 0 || D->getCmdDecl() != 0;
393 Record.push_back(HasBodyStuff);
395 Writer.AddStmt(D->getBody());
396 Writer.AddDeclRef(D->getSelfDecl(), Record);
397 Writer.AddDeclRef(D->getCmdDecl(), Record);
399 Record.push_back(D->isInstanceMethod());
400 Record.push_back(D->isVariadic());
401 Record.push_back(D->isSynthesized());
402 Record.push_back(D->isDefined());
403 // FIXME: stable encoding for @required/@optional
404 Record.push_back(D->getImplementationControl());
405 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway
406 Record.push_back(D->getObjCDeclQualifier());
407 Record.push_back(D->hasRelatedResultType());
408 Record.push_back(D->getNumSelectorArgs());
409 Writer.AddTypeRef(D->getResultType(), Record);
410 Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record);
411 Writer.AddSourceLocation(D->getLocEnd(), Record);
412 Record.push_back(D->param_size());
413 for (ObjCMethodDecl::param_iterator P = D->param_begin(),
414 PEnd = D->param_end(); P != PEnd; ++P)
415 Writer.AddDeclRef(*P, Record);
416 Code = serialization::DECL_OBJC_METHOD;
419 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
421 Writer.AddSourceRange(D->getAtEndRange(), Record);
422 // Abstract class (no need to define a stable serialization::DECL code).
425 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
426 VisitObjCContainerDecl(D);
427 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
428 Writer.AddDeclRef(D->getSuperClass(), Record);
430 // Write out the protocols that are directly referenced by the @interface.
431 Record.push_back(D->ReferencedProtocols.size());
432 for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(),
433 PEnd = D->protocol_end();
435 Writer.AddDeclRef(*P, Record);
436 for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
437 PLEnd = D->protocol_loc_end();
439 Writer.AddSourceLocation(*PL, Record);
441 // Write out the protocols that are transitively referenced.
442 Record.push_back(D->AllReferencedProtocols.size());
443 for (ObjCList<ObjCProtocolDecl>::iterator
444 P = D->AllReferencedProtocols.begin(),
445 PEnd = D->AllReferencedProtocols.end();
447 Writer.AddDeclRef(*P, Record);
449 // Write out the ivars.
450 Record.push_back(D->ivar_size());
451 for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(),
452 IEnd = D->ivar_end(); I != IEnd; ++I)
453 Writer.AddDeclRef(*I, Record);
454 Writer.AddDeclRef(D->getCategoryList(), Record);
455 Record.push_back(D->isForwardDecl());
456 Record.push_back(D->isImplicitInterfaceDecl());
457 Writer.AddSourceLocation(D->getClassLoc(), Record);
458 Writer.AddSourceLocation(D->getSuperClassLoc(), Record);
459 Writer.AddSourceLocation(D->getLocEnd(), Record);
460 Code = serialization::DECL_OBJC_INTERFACE;
463 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
465 // FIXME: stable encoding for @public/@private/@protected/@package
466 Record.push_back(D->getAccessControl());
467 Record.push_back(D->getSynthesize());
469 if (!D->hasAttrs() &&
472 !D->isInvalidDecl() &&
473 !D->isReferenced() &&
474 D->getPCHLevel() == 0 &&
478 AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
480 Code = serialization::DECL_OBJC_IVAR;
483 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
484 VisitObjCContainerDecl(D);
485 Record.push_back(D->isForwardDecl());
486 Writer.AddSourceLocation(D->getLocEnd(), Record);
487 Record.push_back(D->protocol_size());
488 for (ObjCProtocolDecl::protocol_iterator
489 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
490 Writer.AddDeclRef(*I, Record);
491 for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
492 PLEnd = D->protocol_loc_end();
494 Writer.AddSourceLocation(*PL, Record);
495 Code = serialization::DECL_OBJC_PROTOCOL;
498 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
500 Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
503 void ASTDeclWriter::VisitObjCClassDecl(ObjCClassDecl *D) {
505 Record.push_back(D->size());
506 for (ObjCClassDecl::iterator I = D->begin(), IEnd = D->end(); I != IEnd; ++I)
507 Writer.AddDeclRef(I->getInterface(), Record);
508 for (ObjCClassDecl::iterator I = D->begin(), IEnd = D->end(); I != IEnd; ++I)
509 Writer.AddSourceLocation(I->getLocation(), Record);
510 Code = serialization::DECL_OBJC_CLASS;
513 void ASTDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
515 Record.push_back(D->protocol_size());
516 for (ObjCForwardProtocolDecl::protocol_iterator
517 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
518 Writer.AddDeclRef(*I, Record);
519 for (ObjCForwardProtocolDecl::protocol_loc_iterator
520 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
522 Writer.AddSourceLocation(*PL, Record);
523 Code = serialization::DECL_OBJC_FORWARD_PROTOCOL;
526 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
527 VisitObjCContainerDecl(D);
528 Writer.AddDeclRef(D->getClassInterface(), Record);
529 Record.push_back(D->protocol_size());
530 for (ObjCCategoryDecl::protocol_iterator
531 I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
532 Writer.AddDeclRef(*I, Record);
533 for (ObjCCategoryDecl::protocol_loc_iterator
534 PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
536 Writer.AddSourceLocation(*PL, Record);
537 Writer.AddDeclRef(D->getNextClassCategory(), Record);
538 Record.push_back(D->hasSynthBitfield());
539 Writer.AddSourceLocation(D->getAtLoc(), Record);
540 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
541 Code = serialization::DECL_OBJC_CATEGORY;
544 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
546 Writer.AddDeclRef(D->getClassInterface(), Record);
547 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
550 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
552 Writer.AddSourceLocation(D->getAtLoc(), Record);
553 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
554 // FIXME: stable encoding
555 Record.push_back((unsigned)D->getPropertyAttributes());
556 Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
557 // FIXME: stable encoding
558 Record.push_back((unsigned)D->getPropertyImplementation());
559 Writer.AddDeclarationName(D->getGetterName(), Record);
560 Writer.AddDeclarationName(D->getSetterName(), Record);
561 Writer.AddDeclRef(D->getGetterMethodDecl(), Record);
562 Writer.AddDeclRef(D->getSetterMethodDecl(), Record);
563 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
564 Code = serialization::DECL_OBJC_PROPERTY;
567 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
568 VisitObjCContainerDecl(D);
569 Writer.AddDeclRef(D->getClassInterface(), Record);
570 // Abstract class (no need to define a stable serialization::DECL code).
573 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
574 VisitObjCImplDecl(D);
575 Writer.AddIdentifierRef(D->getIdentifier(), Record);
576 Code = serialization::DECL_OBJC_CATEGORY_IMPL;
579 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
580 VisitObjCImplDecl(D);
581 Writer.AddDeclRef(D->getSuperClass(), Record);
582 Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers,
584 Record.push_back(D->hasSynthBitfield());
585 Code = serialization::DECL_OBJC_IMPLEMENTATION;
588 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
590 Writer.AddSourceLocation(D->getLocStart(), Record);
591 Writer.AddDeclRef(D->getPropertyDecl(), Record);
592 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
593 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record);
594 Writer.AddStmt(D->getGetterCXXConstructor());
595 Writer.AddStmt(D->getSetterCXXAssignment());
596 Code = serialization::DECL_OBJC_PROPERTY_IMPL;
599 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
600 VisitDeclaratorDecl(D);
601 Record.push_back(D->isMutable());
602 Record.push_back(D->getBitWidth()? 1 : D->hasInClassInitializer() ? 2 : 0);
603 if (D->getBitWidth())
604 Writer.AddStmt(D->getBitWidth());
605 else if (D->hasInClassInitializer())
606 Writer.AddStmt(D->getInClassInitializer());
607 if (!D->getDeclName())
608 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record);
610 if (!D->hasAttrs() &&
613 !D->isInvalidDecl() &&
614 !D->isReferenced() &&
615 D->getPCHLevel() == 0 &&
617 !D->hasInClassInitializer() &&
619 !ObjCIvarDecl::classofKind(D->getKind()) &&
620 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
622 AbbrevToUse = Writer.getDeclFieldAbbrev();
624 Code = serialization::DECL_FIELD;
627 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
629 Record.push_back(D->getChainingSize());
631 for (IndirectFieldDecl::chain_iterator
632 P = D->chain_begin(),
633 PEnd = D->chain_end(); P != PEnd; ++P)
634 Writer.AddDeclRef(*P, Record);
635 Code = serialization::DECL_INDIRECTFIELD;
638 void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
639 VisitDeclaratorDecl(D);
640 VisitRedeclarable(D);
641 Record.push_back(D->getStorageClass()); // FIXME: stable encoding
642 Record.push_back(D->getStorageClassAsWritten());
643 Record.push_back(D->isThreadSpecified());
644 Record.push_back(D->hasCXXDirectInitializer());
645 Record.push_back(D->isExceptionVariable());
646 Record.push_back(D->isNRVOVariable());
647 Record.push_back(D->isCXXForRangeDecl());
648 Record.push_back(D->isARCPseudoStrong());
649 Record.push_back(D->getInit() ? 1 : 0);
651 Writer.AddStmt(D->getInit());
653 MemberSpecializationInfo *SpecInfo
654 = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0;
655 Record.push_back(SpecInfo != 0);
657 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record);
658 Record.push_back(SpecInfo->getTemplateSpecializationKind());
659 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record);
662 if (!D->hasAttrs() &&
665 !D->isInvalidDecl() &&
666 !D->isReferenced() &&
667 D->getAccess() == AS_none &&
668 D->getPCHLevel() == 0 &&
669 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
671 D->RedeclLink.getNext() == D &&
672 !D->hasCXXDirectInitializer() &&
674 !isa<ParmVarDecl>(D) &&
676 AbbrevToUse = Writer.getDeclVarAbbrev();
678 Code = serialization::DECL_VAR;
681 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
683 Code = serialization::DECL_IMPLICIT_PARAM;
686 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
688 Record.push_back(D->isObjCMethodParameter());
689 Record.push_back(D->getFunctionScopeDepth());
690 Record.push_back(D->getFunctionScopeIndex());
691 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
692 Record.push_back(D->isKNRPromoted());
693 Record.push_back(D->hasInheritedDefaultArg());
694 Record.push_back(D->hasUninstantiatedDefaultArg());
695 if (D->hasUninstantiatedDefaultArg())
696 Writer.AddStmt(D->getUninstantiatedDefaultArg());
697 Code = serialization::DECL_PARM_VAR;
699 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
701 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
702 // we dynamically check for the properties that we optimize for, but don't
703 // know are true of all PARM_VAR_DECLs.
704 if (!D->hasAttrs() &&
708 D->getAccess() == AS_none &&
709 D->getPCHLevel() == 0 &&
710 D->getStorageClass() == 0 &&
711 !D->hasCXXDirectInitializer() && // Can params have this ever?
712 D->getFunctionScopeDepth() == 0 &&
713 D->getObjCDeclQualifier() == 0 &&
714 !D->isKNRPromoted() &&
715 !D->hasInheritedDefaultArg() &&
717 !D->hasUninstantiatedDefaultArg()) // No default expr.
718 AbbrevToUse = Writer.getDeclParmVarAbbrev();
720 // Check things we know are true of *every* PARM_VAR_DECL, which is more than
721 // just us assuming it.
722 assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls");
723 assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread");
724 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
725 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
726 assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl");
727 assert(!D->isStaticDataMember() &&
728 "PARM_VAR_DECL can't be static data member");
731 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
733 Writer.AddStmt(D->getAsmString());
734 Writer.AddSourceLocation(D->getRParenLoc(), Record);
735 Code = serialization::DECL_FILE_SCOPE_ASM;
738 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
740 Writer.AddStmt(D->getBody());
741 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record);
742 Record.push_back(D->param_size());
743 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
745 Writer.AddDeclRef(*P, Record);
746 Record.push_back(D->capturesCXXThis());
747 Record.push_back(D->getNumCaptures());
748 for (BlockDecl::capture_iterator
749 i = D->capture_begin(), e = D->capture_end(); i != e; ++i) {
750 const BlockDecl::Capture &capture = *i;
751 Writer.AddDeclRef(capture.getVariable(), Record);
754 if (capture.isByRef()) flags |= 1;
755 if (capture.isNested()) flags |= 2;
756 if (capture.hasCopyExpr()) flags |= 4;
757 Record.push_back(flags);
759 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr());
762 Code = serialization::DECL_BLOCK;
765 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
767 Record.push_back(D->getLanguage());
768 Writer.AddSourceLocation(D->getExternLoc(), Record);
769 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
770 Code = serialization::DECL_LINKAGE_SPEC;
773 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
775 Writer.AddSourceLocation(D->getLocStart(), Record);
776 Code = serialization::DECL_LABEL;
780 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
782 Record.push_back(D->isInline());
783 Writer.AddSourceLocation(D->getLocStart(), Record);
784 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
785 Writer.AddDeclRef(D->getNextNamespace(), Record);
787 // Only write one reference--original or anonymous
788 Record.push_back(D->isOriginalNamespace());
789 if (D->isOriginalNamespace())
790 Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
792 Writer.AddDeclRef(D->getOriginalNamespace(), Record);
793 Code = serialization::DECL_NAMESPACE;
795 if (Writer.hasChain() && !D->isOriginalNamespace() &&
796 D->getOriginalNamespace()->getPCHLevel() > 0) {
797 NamespaceDecl *NS = D->getOriginalNamespace();
798 Writer.AddUpdatedDeclContext(NS);
800 // Make sure all visible decls are written. They will be recorded later.
801 NS->lookup(DeclarationName());
802 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(NS->getLookupPtr());
804 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end();
806 DeclContext::lookup_result Result = D->second.getLookupResult();
807 while (Result.first != Result.second) {
808 Writer.GetDeclRef(*Result.first);
815 if (Writer.hasChain() && D->isAnonymousNamespace() && !D->getNextNamespace()){
816 // This is a most recent reopening of the anonymous namespace. If its parent
817 // is in a previous PCH (or is the TU), mark that parent for update, because
818 // the original namespace always points to the latest re-opening of its
819 // anonymous namespace.
820 Decl *Parent = cast<Decl>(
821 D->getParent()->getRedeclContext()->getPrimaryContext());
822 if (Parent->getPCHLevel() > 0) {
823 ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent];
824 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE);
825 Writer.AddDeclRef(D, Record);
830 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
832 Writer.AddSourceLocation(D->getNamespaceLoc(), Record);
833 Writer.AddSourceLocation(D->getTargetNameLoc(), Record);
834 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
835 Writer.AddDeclRef(D->getNamespace(), Record);
836 Code = serialization::DECL_NAMESPACE_ALIAS;
839 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
841 Writer.AddSourceLocation(D->getUsingLocation(), Record);
842 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
843 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
844 Writer.AddDeclRef(D->FirstUsingShadow, Record);
845 Record.push_back(D->isTypeName());
846 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record);
847 Code = serialization::DECL_USING;
850 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
852 Writer.AddDeclRef(D->getTargetDecl(), Record);
853 Writer.AddDeclRef(D->UsingOrNextShadow, Record);
854 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record);
855 Code = serialization::DECL_USING_SHADOW;
858 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
860 Writer.AddSourceLocation(D->getUsingLoc(), Record);
861 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record);
862 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
863 Writer.AddDeclRef(D->getNominatedNamespace(), Record);
864 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record);
865 Code = serialization::DECL_USING_DIRECTIVE;
868 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
870 Writer.AddSourceLocation(D->getUsingLoc(), Record);
871 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
872 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
873 Code = serialization::DECL_UNRESOLVED_USING_VALUE;
876 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
877 UnresolvedUsingTypenameDecl *D) {
879 Writer.AddSourceLocation(D->getTypenameLoc(), Record);
880 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
881 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
884 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
887 CXXRecordDecl *DefinitionDecl = 0;
888 if (D->DefinitionData)
889 DefinitionDecl = D->DefinitionData->Definition;
890 Writer.AddDeclRef(DefinitionDecl, Record);
891 if (D == DefinitionDecl)
892 Writer.AddCXXDefinitionData(D, Record);
895 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
897 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
898 Record.push_back(CXXRecTemplate);
899 Writer.AddDeclRef(TemplD, Record);
900 } else if (MemberSpecializationInfo *MSInfo
901 = D->getMemberSpecializationInfo()) {
902 Record.push_back(CXXRecMemberSpecialization);
903 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record);
904 Record.push_back(MSInfo->getTemplateSpecializationKind());
905 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record);
907 Record.push_back(CXXRecNotTemplate);
910 // Store the key function to avoid deserializing every method so we can
913 Writer.AddDeclRef(Context.getKeyFunction(D), Record);
915 Code = serialization::DECL_CXX_RECORD;
918 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
919 VisitFunctionDecl(D);
920 Record.push_back(D->size_overridden_methods());
921 for (CXXMethodDecl::method_iterator
922 I = D->begin_overridden_methods(), E = D->end_overridden_methods();
924 Writer.AddDeclRef(*I, Record);
925 Code = serialization::DECL_CXX_METHOD;
928 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
929 VisitCXXMethodDecl(D);
931 Record.push_back(D->IsExplicitSpecified);
932 Record.push_back(D->ImplicitlyDefined);
933 Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers,
936 Code = serialization::DECL_CXX_CONSTRUCTOR;
939 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
940 VisitCXXMethodDecl(D);
942 Record.push_back(D->ImplicitlyDefined);
943 Writer.AddDeclRef(D->OperatorDelete, Record);
945 Code = serialization::DECL_CXX_DESTRUCTOR;
948 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
949 VisitCXXMethodDecl(D);
950 Record.push_back(D->IsExplicitSpecified);
951 Code = serialization::DECL_CXX_CONVERSION;
954 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
956 Writer.AddSourceLocation(D->getColonLoc(), Record);
957 Code = serialization::DECL_ACCESS_SPEC;
960 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) {
962 Record.push_back(D->Friend.is<TypeSourceInfo*>());
963 if (D->Friend.is<TypeSourceInfo*>())
964 Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record);
966 Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record);
967 Writer.AddDeclRef(D->getNextFriend(), Record);
968 Record.push_back(D->UnsupportedFriend);
969 Writer.AddSourceLocation(D->FriendLoc, Record);
970 Code = serialization::DECL_FRIEND;
973 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
975 Record.push_back(D->getNumTemplateParameters());
976 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
977 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record);
978 Record.push_back(D->getFriendDecl() != 0);
979 if (D->getFriendDecl())
980 Writer.AddDeclRef(D->getFriendDecl(), Record);
982 Writer.AddTypeSourceInfo(D->getFriendType(), Record);
983 Writer.AddSourceLocation(D->getFriendLoc(), Record);
984 Code = serialization::DECL_FRIEND_TEMPLATE;
987 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
990 Writer.AddDeclRef(D->getTemplatedDecl(), Record);
991 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
994 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
995 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
996 // getCommonPtr() can be used while this is still initializing.
998 Writer.AddDeclRef(D->getPreviousDeclaration(), Record);
999 if (D->getPreviousDeclaration())
1000 Writer.AddDeclRef(D->getFirstDeclaration(), Record);
1002 if (D->getPreviousDeclaration() == 0) {
1003 // This TemplateDecl owns the CommonPtr; write it.
1004 assert(D->isCanonicalDecl());
1006 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record);
1007 if (D->getInstantiatedFromMemberTemplate())
1008 Record.push_back(D->isMemberSpecialization());
1010 Writer.AddDeclRef(D->getCommonPtr()->Latest, Record);
1012 RedeclarableTemplateDecl *First = D->getFirstDeclaration();
1014 // If this is a most recent redeclaration that is pointed to by a first decl
1015 // in a chained PCH, keep track of the association with the map so we can
1016 // update the first decl during AST reading.
1017 if (First->getMostRecentDeclaration() == D &&
1018 First->getPCHLevel() > D->getPCHLevel()) {
1019 assert(Writer.FirstLatestDecls.find(First)==Writer.FirstLatestDecls.end()
1020 && "The latest is already set");
1021 Writer.FirstLatestDecls[First] = D;
1025 VisitTemplateDecl(D);
1026 Record.push_back(D->getIdentifierNamespace());
1029 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
1030 VisitRedeclarableTemplateDecl(D);
1032 if (D->getPreviousDeclaration() == 0) {
1033 typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy;
1034 CTSDSetTy &CTSDSet = D->getSpecializations();
1035 Record.push_back(CTSDSet.size());
1036 for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) {
1037 assert(I->isCanonicalDecl() && "Expected only canonical decls in set");
1038 Writer.AddDeclRef(&*I, Record);
1041 typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy;
1042 CTPSDSetTy &CTPSDSet = D->getPartialSpecializations();
1043 Record.push_back(CTPSDSet.size());
1044 for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) {
1045 assert(I->isCanonicalDecl() && "Expected only canonical decls in set");
1046 Writer.AddDeclRef(&*I, Record);
1049 // InjectedClassNameType is computed, no need to write it.
1051 Code = serialization::DECL_CLASS_TEMPLATE;
1054 void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
1055 ClassTemplateSpecializationDecl *D) {
1056 VisitCXXRecordDecl(D);
1058 llvm::PointerUnion<ClassTemplateDecl *,
1059 ClassTemplatePartialSpecializationDecl *> InstFrom
1060 = D->getSpecializedTemplateOrPartial();
1062 if (InstFrom.is<ClassTemplateDecl *>()) {
1063 InstFromD = InstFrom.get<ClassTemplateDecl *>();
1064 Writer.AddDeclRef(InstFromD, Record);
1066 InstFromD = InstFrom.get<ClassTemplatePartialSpecializationDecl *>();
1067 Writer.AddDeclRef(InstFromD, Record);
1068 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record);
1069 InstFromD = cast<ClassTemplatePartialSpecializationDecl>(InstFromD)->
1070 getSpecializedTemplate();
1074 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record);
1075 if (D->getTypeAsWritten()) {
1076 Writer.AddSourceLocation(D->getExternLoc(), Record);
1077 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record);
1080 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record);
1081 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record);
1082 Record.push_back(D->getSpecializationKind());
1084 if (D->isCanonicalDecl()) {
1085 // When reading, we'll add it to the folding set of the following template.
1086 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record);
1089 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
1092 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl(
1093 ClassTemplatePartialSpecializationDecl *D) {
1094 VisitClassTemplateSpecializationDecl(D);
1096 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
1098 Record.push_back(D->getNumTemplateArgsAsWritten());
1099 for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i)
1100 Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record);
1102 Record.push_back(D->getSequenceNumber());
1104 // These are read/set from/to the first declaration.
1105 if (D->getPreviousDeclaration() == 0) {
1106 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record);
1107 Record.push_back(D->isMemberSpecialization());
1110 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
1113 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
1114 VisitRedeclarableTemplateDecl(D);
1116 if (D->getPreviousDeclaration() == 0) {
1117 // This FunctionTemplateDecl owns the CommonPtr; write it.
1119 // Write the function specialization declarations.
1120 Record.push_back(D->getSpecializations().size());
1121 for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator
1122 I = D->getSpecializations().begin(),
1123 E = D->getSpecializations().end() ; I != E; ++I) {
1124 assert(I->Function->isCanonicalDecl() &&
1125 "Expected only canonical decls in set");
1126 Writer.AddDeclRef(I->Function, Record);
1129 Code = serialization::DECL_FUNCTION_TEMPLATE;
1132 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
1135 Record.push_back(D->wasDeclaredWithTypename());
1136 Record.push_back(D->defaultArgumentWasInherited());
1137 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record);
1139 Code = serialization::DECL_TEMPLATE_TYPE_PARM;
1142 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
1143 // For an expanded parameter pack, record the number of expansion types here
1144 // so that it's easier for
1145 if (D->isExpandedParameterPack())
1146 Record.push_back(D->getNumExpansionTypes());
1148 VisitDeclaratorDecl(D);
1149 // TemplateParmPosition.
1150 Record.push_back(D->getDepth());
1151 Record.push_back(D->getPosition());
1153 if (D->isExpandedParameterPack()) {
1154 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
1155 Writer.AddTypeRef(D->getExpansionType(I), Record);
1156 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record);
1159 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
1161 // Rest of NonTypeTemplateParmDecl.
1162 Record.push_back(D->isParameterPack());
1163 Record.push_back(D->getDefaultArgument() != 0);
1164 if (D->getDefaultArgument()) {
1165 Writer.AddStmt(D->getDefaultArgument());
1166 Record.push_back(D->defaultArgumentWasInherited());
1168 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
1172 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
1173 VisitTemplateDecl(D);
1174 // TemplateParmPosition.
1175 Record.push_back(D->getDepth());
1176 Record.push_back(D->getPosition());
1177 // Rest of TemplateTemplateParmDecl.
1178 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record);
1179 Record.push_back(D->defaultArgumentWasInherited());
1180 Record.push_back(D->isParameterPack());
1181 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
1184 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1185 VisitRedeclarableTemplateDecl(D);
1186 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
1189 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
1191 Writer.AddStmt(D->getAssertExpr());
1192 Writer.AddStmt(D->getMessage());
1193 Writer.AddSourceLocation(D->getRParenLoc(), Record);
1194 Code = serialization::DECL_STATIC_ASSERT;
1197 /// \brief Emit the DeclContext part of a declaration context decl.
1199 /// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL
1200 /// block for this declaration context is stored. May be 0 to indicate
1201 /// that there are no declarations stored within this context.
1203 /// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE
1204 /// block for this declaration context is stored. May be 0 to indicate
1205 /// that there are no declarations visible from this context. Note
1206 /// that this value will not be emitted for non-primary declaration
1208 void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
1209 uint64_t VisibleOffset) {
1210 Record.push_back(LexicalOffset);
1211 Record.push_back(VisibleOffset);
1214 template <typename T>
1215 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
1216 enum { NoRedeclaration = 0, PointsToPrevious, PointsToLatest };
1217 if (D->RedeclLink.getNext() == D) {
1218 Record.push_back(NoRedeclaration);
1220 if (D->RedeclLink.NextIsPrevious()) {
1221 Record.push_back(PointsToPrevious);
1222 Writer.AddDeclRef(D->getPreviousDeclaration(), Record);
1223 Writer.AddDeclRef(D->getFirstDeclaration(), Record);
1225 Record.push_back(PointsToLatest);
1226 Writer.AddDeclRef(D->RedeclLink.getPointer(), Record);
1230 T *First = D->getFirstDeclaration();
1231 T *ThisDecl = static_cast<T*>(D);
1232 // If this is a most recent redeclaration that is pointed to by a first decl
1233 // in a chained PCH, keep track of the association with the map so we can
1234 // update the first decl during AST reading.
1235 if (ThisDecl != First && First->getMostRecentDeclaration() == ThisDecl &&
1236 First->getPCHLevel() > ThisDecl->getPCHLevel()) {
1237 assert(Writer.FirstLatestDecls.find(First) == Writer.FirstLatestDecls.end()
1238 && "The latest is already set");
1239 Writer.FirstLatestDecls[First] = ThisDecl;
1243 //===----------------------------------------------------------------------===//
1244 // ASTWriter Implementation
1245 //===----------------------------------------------------------------------===//
1247 void ASTWriter::WriteDeclsBlockAbbrevs() {
1248 using namespace llvm;
1252 // Abbreviation for DECL_FIELD
1253 Abv = new BitCodeAbbrev();
1254 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
1256 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1257 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1258 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1259 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1260 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1261 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1262 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1263 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1264 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1265 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1267 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1268 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1270 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1272 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1273 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1275 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1276 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1278 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1279 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1280 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1281 DeclFieldAbbrev = Stream.EmitAbbrev(Abv);
1283 // Abbreviation for DECL_OBJC_IVAR
1284 Abv = new BitCodeAbbrev();
1285 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
1287 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1288 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1289 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1290 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1291 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1292 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1293 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1294 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1295 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1296 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1298 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1299 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1301 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1303 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1304 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1306 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1307 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1309 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
1310 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
1312 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1313 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1314 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1315 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv);
1317 // Abbreviation for DECL_ENUM
1318 Abv = new BitCodeAbbrev();
1319 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
1321 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1322 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1323 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1324 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1325 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1326 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1327 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1328 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1329 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1330 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1332 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1333 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1335 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1336 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1338 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1340 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1341 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1342 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isDefinition
1343 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1344 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1345 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1346 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl
1348 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
1349 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
1350 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
1351 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
1352 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
1353 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
1354 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
1355 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
1356 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
1358 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1359 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1360 DeclEnumAbbrev = Stream.EmitAbbrev(Abv);
1362 // Abbreviation for DECL_RECORD
1363 Abv = new BitCodeAbbrev();
1364 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
1366 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1367 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1368 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1369 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1370 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1371 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1372 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1373 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1374 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1375 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1377 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1378 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1380 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1381 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1383 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1385 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1386 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1387 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isDefinition
1388 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1389 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1390 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1391 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl
1393 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
1394 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
1395 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
1397 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1398 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1399 DeclRecordAbbrev = Stream.EmitAbbrev(Abv);
1401 // Abbreviation for DECL_PARM_VAR
1402 Abv = new BitCodeAbbrev();
1403 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
1405 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1406 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1407 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1408 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1409 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1410 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1411 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1412 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1413 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1414 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1416 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1417 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1419 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1421 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1422 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1424 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1425 Abv->Add(BitCodeAbbrevOp(0)); // StorageClass
1426 Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten
1427 Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified
1428 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer
1429 Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable
1430 Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable
1431 Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl
1432 Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong
1433 Abv->Add(BitCodeAbbrevOp(0)); // HasInit
1434 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
1436 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
1437 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
1438 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
1439 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
1440 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
1441 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
1442 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
1444 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1445 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1446 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1447 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv);
1449 // Abbreviation for DECL_TYPEDEF
1450 Abv = new BitCodeAbbrev();
1451 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
1453 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1454 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1455 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1456 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1457 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1458 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1459 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1460 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1461 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1462 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1464 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1465 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1467 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1468 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1470 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1471 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1472 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv);
1474 // Abbreviation for DECL_VAR
1475 Abv = new BitCodeAbbrev();
1476 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
1478 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1479 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1480 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1481 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
1482 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1483 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1484 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1485 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1486 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1487 Abv->Add(BitCodeAbbrevOp(0)); // PCH level
1489 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1490 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1492 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1494 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1495 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1497 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1498 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass
1499 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten
1500 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified
1501 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer
1502 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
1503 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
1504 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
1505 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
1506 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit
1507 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo
1509 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1510 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1511 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1512 DeclVarAbbrev = Stream.EmitAbbrev(Abv);
1514 // Abbreviation for EXPR_DECL_REF
1515 Abv = new BitCodeAbbrev();
1516 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
1519 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1520 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1521 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1522 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1523 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1524 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1525 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1527 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
1528 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
1529 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
1530 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
1531 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1532 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv);
1534 // Abbreviation for EXPR_INTEGER_LITERAL
1535 Abv = new BitCodeAbbrev();
1536 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
1539 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1540 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1541 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1542 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1543 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1544 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1545 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1547 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1548 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
1549 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
1550 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv);
1552 // Abbreviation for EXPR_CHARACTER_LITERAL
1553 Abv = new BitCodeAbbrev();
1554 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
1557 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1558 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1559 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1560 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1561 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1562 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1563 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1565 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
1566 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1567 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide
1568 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv);
1570 Abv = new BitCodeAbbrev();
1571 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
1572 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1573 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv);
1575 Abv = new BitCodeAbbrev();
1576 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
1577 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1578 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1579 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv);
1582 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
1583 /// consumers of the AST.
1585 /// Such decls will always be deserialized from the AST file, so we would like
1586 /// this to be as restrictive as possible. Currently the predicate is driven by
1587 /// code generation requirements, if other clients have a different notion of
1588 /// what is "required" then we may have to consider an alternate scheme where
1589 /// clients can iterate over the top-level decls and get information on them,
1590 /// without necessary deserializing them. We could explicitly require such
1591 /// clients to use a separate API call to "realize" the decl. This should be
1592 /// relatively painless since they would presumably only do it for top-level
1594 static bool isRequiredDecl(const Decl *D, ASTContext &Context) {
1595 // File scoped assembly or obj-c implementation must be seen.
1596 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplementationDecl>(D))
1599 return Context.DeclMustBeEmitted(D);
1602 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
1603 // Switch case IDs are per Decl.
1604 ClearSwitchCaseIDs();
1607 ASTDeclWriter W(*this, Context, Record);
1609 // If this declaration is also a DeclContext, write blocks for the
1610 // declarations that lexically stored inside its context and those
1611 // declarations that are visible from its context. These blocks
1612 // are written before the declaration itself so that we can put
1613 // their offsets into the record for the declaration.
1614 uint64_t LexicalOffset = 0;
1615 uint64_t VisibleOffset = 0;
1616 DeclContext *DC = dyn_cast<DeclContext>(D);
1618 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC);
1619 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC);
1622 // Determine the ID for this declaration
1623 serialization::DeclID &IDR = DeclIDs[D];
1626 serialization::DeclID ID = IDR;
1628 if (ID < FirstDeclID) {
1629 // We're replacing a decl in a previous file.
1630 ReplacedDecls.push_back(std::make_pair(ID, Stream.GetCurrentBitNo()));
1632 unsigned Index = ID - FirstDeclID;
1634 // Record the offset for this declaration
1635 if (DeclOffsets.size() == Index)
1636 DeclOffsets.push_back(Stream.GetCurrentBitNo());
1637 else if (DeclOffsets.size() < Index) {
1638 DeclOffsets.resize(Index+1);
1639 DeclOffsets[Index] = Stream.GetCurrentBitNo();
1643 // Build and emit a record for this declaration
1645 W.Code = (serialization::DeclCode)0;
1648 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset);
1651 llvm::report_fatal_error(llvm::StringRef("unexpected declaration kind '") +
1652 D->getDeclKindName() + "'");
1653 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse);
1655 // Flush any expressions that were written as part of this declaration.
1658 // Flush C++ base specifiers, if there are any.
1659 FlushCXXBaseSpecifiers();
1661 // Note "external" declarations so that we can add them to a record in the
1664 // FIXME: This should be renamed, the predicate is much more complicated.
1665 if (isRequiredDecl(D, Context))
1666 ExternalDefinitions.push_back(ID);