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Sebastian Redl904c9c82010-08-18 23:57:11 +00001//===--- ASTReaderDecl.cpp - Decl Deserialization ---------------*- C++ -*-===//
Chris Lattner698f9252009-04-27 05:27:42 +00002//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
Sebastian Redlc43b54c2010-08-18 23:56:43 +000010// This file implements the ASTReader::ReadDeclRecord method, which is the
Chris Lattner698f9252009-04-27 05:27:42 +000011// entrypoint for loading a decl.
12//
13//===----------------------------------------------------------------------===//
14
Chandler Carruth55fc8732012-12-04 09:13:33 +000015#include "clang/Serialization/ASTReader.h"
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +000016#include "ASTCommon.h"
Benjamin Kramerb1758c62012-04-15 12:36:49 +000017#include "ASTReaderInternals.h"
Chandler Carruth55fc8732012-12-04 09:13:33 +000018#include "clang/AST/ASTConsumer.h"
19#include "clang/AST/ASTContext.h"
20#include "clang/AST/DeclCXX.h"
21#include "clang/AST/DeclGroup.h"
22#include "clang/AST/DeclTemplate.h"
23#include "clang/AST/DeclVisitor.h"
24#include "clang/AST/Expr.h"
Douglas Gregor0f753232011-12-22 01:48:48 +000025#include "clang/Sema/IdentifierResolver.h"
26#include "clang/Sema/Sema.h"
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +000027#include "clang/Sema/SemaDiagnostic.h"
Argyrios Kyrtzidisb88acb02012-05-04 01:49:36 +000028#include "llvm/Support/SaveAndRestore.h"
Chris Lattner698f9252009-04-27 05:27:42 +000029using namespace clang;
Sebastian Redl8538e8d2010-08-18 23:57:32 +000030using namespace clang::serialization;
Chris Lattner698f9252009-04-27 05:27:42 +000031
32//===----------------------------------------------------------------------===//
33// Declaration deserialization
34//===----------------------------------------------------------------------===//
35
Argyrios Kyrtzidis67643342010-06-29 22:47:00 +000036namespace clang {
Sebastian Redld527cc02010-08-18 23:56:48 +000037 class ASTDeclReader : public DeclVisitor<ASTDeclReader, void> {
Sebastian Redlc43b54c2010-08-18 23:56:43 +000038 ASTReader &Reader;
Douglas Gregor1a4761e2011-11-30 23:21:26 +000039 ModuleFile &F;
Sebastian Redl8538e8d2010-08-18 23:57:32 +000040 const DeclID ThisDeclID;
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +000041 const unsigned RawLocation;
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000042 typedef ASTReader::RecordData RecordData;
43 const RecordData &Record;
Chris Lattner698f9252009-04-27 05:27:42 +000044 unsigned &Idx;
Sebastian Redl8538e8d2010-08-18 23:57:32 +000045 TypeID TypeIDForTypeDecl;
Douglas Gregor67da6f62011-03-05 01:35:54 +000046
Douglas Gregor5456b0fe2012-10-09 17:21:28 +000047 bool HasPendingBody;
48
Sebastian Redl577d4792010-07-22 22:43:28 +000049 uint64_t GetCurrentCursorOffset();
Douglas Gregor409448c2011-07-21 22:35:25 +000050
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000051 SourceLocation ReadSourceLocation(const RecordData &R, unsigned &I) {
Sebastian Redlc3632732010-10-05 15:59:54 +000052 return Reader.ReadSourceLocation(F, R, I);
53 }
Douglas Gregor409448c2011-07-21 22:35:25 +000054
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000055 SourceRange ReadSourceRange(const RecordData &R, unsigned &I) {
Sebastian Redlc3632732010-10-05 15:59:54 +000056 return Reader.ReadSourceRange(F, R, I);
57 }
Douglas Gregor409448c2011-07-21 22:35:25 +000058
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000059 TypeSourceInfo *GetTypeSourceInfo(const RecordData &R, unsigned &I) {
Sebastian Redlc3632732010-10-05 15:59:54 +000060 return Reader.GetTypeSourceInfo(F, R, I);
61 }
Douglas Gregor409448c2011-07-21 22:35:25 +000062
63 serialization::DeclID ReadDeclID(const RecordData &R, unsigned &I) {
64 return Reader.ReadDeclID(F, R, I);
65 }
66
67 Decl *ReadDecl(const RecordData &R, unsigned &I) {
68 return Reader.ReadDecl(F, R, I);
69 }
70
71 template<typename T>
72 T *ReadDeclAs(const RecordData &R, unsigned &I) {
73 return Reader.ReadDeclAs<T>(F, R, I);
74 }
75
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +000076 void ReadQualifierInfo(QualifierInfo &Info,
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000077 const RecordData &R, unsigned &I) {
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +000078 Reader.ReadQualifierInfo(F, Info, R, I);
79 }
Douglas Gregor409448c2011-07-21 22:35:25 +000080
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +000081 void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc, DeclarationName Name,
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000082 const RecordData &R, unsigned &I) {
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +000083 Reader.ReadDeclarationNameLoc(F, DNLoc, Name, R, I);
84 }
Douglas Gregor409448c2011-07-21 22:35:25 +000085
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +000086 void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo,
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +000087 const RecordData &R, unsigned &I) {
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +000088 Reader.ReadDeclarationNameInfo(F, NameInfo, R, I);
89 }
Sebastian Redl577d4792010-07-22 22:43:28 +000090
Douglas Gregorecc2c092011-12-01 22:20:10 +000091 serialization::SubmoduleID readSubmoduleID(const RecordData &R,
92 unsigned &I) {
93 if (I >= R.size())
94 return 0;
95
96 return Reader.getGlobalSubmoduleID(F, R[I++]);
97 }
98
Douglas Gregor15de72c2011-12-02 23:23:56 +000099 Module *readModule(const RecordData &R, unsigned &I) {
100 return Reader.getSubmodule(readSubmoduleID(R, I));
101 }
102
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +0000103 void ReadCXXDefinitionData(struct CXXRecordDecl::DefinitionData &Data,
104 const RecordData &R, unsigned &I);
105
Douglas Gregor0f753232011-12-22 01:48:48 +0000106 /// \brief RAII class used to capture the first ID within a redeclaration
107 /// chain and to introduce it into the list of pending redeclaration chains
108 /// on destruction.
109 ///
110 /// The caller can choose not to introduce this ID into the redeclaration
111 /// chain by calling \c suppress().
112 class RedeclarableResult {
113 ASTReader &Reader;
114 GlobalDeclID FirstID;
115 mutable bool Owning;
Douglas Gregor9cfdc032013-01-21 16:16:40 +0000116 Decl::Kind DeclKind;
Douglas Gregor0f753232011-12-22 01:48:48 +0000117
Dmitri Gribenkof56faa02012-09-15 20:20:27 +0000118 void operator=(RedeclarableResult &) LLVM_DELETED_FUNCTION;
Douglas Gregor0f753232011-12-22 01:48:48 +0000119
120 public:
Douglas Gregor9cfdc032013-01-21 16:16:40 +0000121 RedeclarableResult(ASTReader &Reader, GlobalDeclID FirstID,
122 Decl::Kind DeclKind)
123 : Reader(Reader), FirstID(FirstID), Owning(true), DeclKind(DeclKind) { }
Douglas Gregor0f753232011-12-22 01:48:48 +0000124
125 RedeclarableResult(const RedeclarableResult &Other)
Douglas Gregor9cfdc032013-01-21 16:16:40 +0000126 : Reader(Other.Reader), FirstID(Other.FirstID), Owning(Other.Owning) ,
127 DeclKind(Other.DeclKind)
Douglas Gregor0f753232011-12-22 01:48:48 +0000128 {
129 Other.Owning = false;
130 }
131
132 ~RedeclarableResult() {
Douglas Gregor9cfdc032013-01-21 16:16:40 +0000133 if (FirstID && Owning && isRedeclarableDeclKind(DeclKind) &&
134 Reader.PendingDeclChainsKnown.insert(FirstID))
Douglas Gregor0f753232011-12-22 01:48:48 +0000135 Reader.PendingDeclChains.push_back(FirstID);
136 }
137
138 /// \brief Retrieve the first ID.
139 GlobalDeclID getFirstID() const { return FirstID; }
140
141 /// \brief Do not introduce this declaration ID into the set of pending
142 /// declaration chains.
143 void suppress() {
144 Owning = false;
145 }
146 };
Douglas Gregor9cfdc032013-01-21 16:16:40 +0000147
Douglas Gregor0f753232011-12-22 01:48:48 +0000148 /// \brief Class used to capture the result of searching for an existing
149 /// declaration of a specific kind and name, along with the ability
150 /// to update the place where this result was found (the declaration
151 /// chain hanging off an identifier or the DeclContext we searched in)
152 /// if requested.
153 class FindExistingResult {
154 ASTReader &Reader;
155 NamedDecl *New;
156 NamedDecl *Existing;
157 mutable bool AddResult;
158
Dmitri Gribenkof56faa02012-09-15 20:20:27 +0000159 void operator=(FindExistingResult&) LLVM_DELETED_FUNCTION;
Douglas Gregor0f753232011-12-22 01:48:48 +0000160
161 public:
162 FindExistingResult(ASTReader &Reader)
163 : Reader(Reader), New(0), Existing(0), AddResult(false) { }
164
165 FindExistingResult(ASTReader &Reader, NamedDecl *New, NamedDecl *Existing)
166 : Reader(Reader), New(New), Existing(Existing), AddResult(true) { }
167
168 FindExistingResult(const FindExistingResult &Other)
169 : Reader(Other.Reader), New(Other.New), Existing(Other.Existing),
170 AddResult(Other.AddResult)
171 {
172 Other.AddResult = false;
173 }
174
175 ~FindExistingResult();
176
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +0000177 /// \brief Suppress the addition of this result into the known set of
178 /// names.
179 void suppress() { AddResult = false; }
180
Douglas Gregor0f753232011-12-22 01:48:48 +0000181 operator NamedDecl*() const { return Existing; }
182
183 template<typename T>
184 operator T*() const { return dyn_cast_or_null<T>(Existing); }
185 };
186
187 FindExistingResult findExisting(NamedDecl *D);
188
Chris Lattner698f9252009-04-27 05:27:42 +0000189 public:
Douglas Gregor1a4761e2011-11-30 23:21:26 +0000190 ASTDeclReader(ASTReader &Reader, ModuleFile &F,
Craig Topperffdf6862012-09-18 05:34:55 +0000191 DeclID thisDeclID,
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +0000192 unsigned RawLocation,
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +0000193 const RecordData &Record, unsigned &Idx)
Craig Topperffdf6862012-09-18 05:34:55 +0000194 : Reader(Reader), F(F), ThisDeclID(thisDeclID),
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +0000195 RawLocation(RawLocation), Record(Record), Idx(Idx),
Douglas Gregor5456b0fe2012-10-09 17:21:28 +0000196 TypeIDForTypeDecl(0), HasPendingBody(false) { }
Chris Lattner698f9252009-04-27 05:27:42 +0000197
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +0000198 static void attachPreviousDecl(Decl *D, Decl *previous);
Douglas Gregora1be2782011-12-17 23:38:30 +0000199 static void attachLatestDecl(Decl *D, Decl *latest);
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +0000200
Douglas Gregor5456b0fe2012-10-09 17:21:28 +0000201 /// \brief Determine whether this declaration has a pending body.
202 bool hasPendingBody() const { return HasPendingBody; }
203
Argyrios Kyrtzidisd8a0c6f2010-07-02 11:55:01 +0000204 void Visit(Decl *D);
205
Douglas Gregor1a4761e2011-11-30 23:21:26 +0000206 void UpdateDecl(Decl *D, ModuleFile &ModuleFile,
Sebastian Redlf79a7192011-04-29 08:19:30 +0000207 const RecordData &Record);
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +0000208
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +0000209 static void setNextObjCCategory(ObjCCategoryDecl *Cat,
210 ObjCCategoryDecl *Next) {
211 Cat->NextClassCategory = Next;
212 }
213
Chris Lattner698f9252009-04-27 05:27:42 +0000214 void VisitDecl(Decl *D);
215 void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
216 void VisitNamedDecl(NamedDecl *ND);
Chris Lattnerad8dcf42011-02-17 07:39:24 +0000217 void VisitLabelDecl(LabelDecl *LD);
Douglas Gregor0cef4832010-02-21 18:22:14 +0000218 void VisitNamespaceDecl(NamespaceDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000219 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
220 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000221 void VisitTypeDecl(TypeDecl *TD);
Douglas Gregor0f456822011-12-19 14:40:25 +0000222 void VisitTypedefNameDecl(TypedefNameDecl *TD);
Chris Lattner698f9252009-04-27 05:27:42 +0000223 void VisitTypedefDecl(TypedefDecl *TD);
Richard Smith162e1c12011-04-15 14:24:37 +0000224 void VisitTypeAliasDecl(TypeAliasDecl *TD);
Argyrios Kyrtzidis8f4eae92010-06-30 08:49:30 +0000225 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
Richard Smithe565bfa2013-05-23 01:49:11 +0000226 RedeclarableResult VisitTagDecl(TagDecl *TD);
Chris Lattner698f9252009-04-27 05:27:42 +0000227 void VisitEnumDecl(EnumDecl *ED);
Richard Smithe565bfa2013-05-23 01:49:11 +0000228 RedeclarableResult VisitRecordDeclImpl(RecordDecl *RD);
229 void VisitRecordDecl(RecordDecl *RD) { VisitRecordDeclImpl(RD); }
230 RedeclarableResult VisitCXXRecordDeclImpl(CXXRecordDecl *D);
231 void VisitCXXRecordDecl(CXXRecordDecl *D) { VisitCXXRecordDeclImpl(D); }
232 RedeclarableResult VisitClassTemplateSpecializationDeclImpl(
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000233 ClassTemplateSpecializationDecl *D);
Richard Smithe565bfa2013-05-23 01:49:11 +0000234 void VisitClassTemplateSpecializationDecl(
235 ClassTemplateSpecializationDecl *D) {
236 VisitClassTemplateSpecializationDeclImpl(D);
237 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000238 void VisitClassTemplatePartialSpecializationDecl(
239 ClassTemplatePartialSpecializationDecl *D);
Sebastian Redl14c36332011-08-31 13:59:56 +0000240 void VisitClassScopeFunctionSpecializationDecl(
241 ClassScopeFunctionSpecializationDecl *D);
Larisse Voufoef4579c2013-08-06 01:03:05 +0000242 RedeclarableResult
243 VisitVarTemplateSpecializationDeclImpl(VarTemplateSpecializationDecl *D);
244 void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D) {
245 VisitVarTemplateSpecializationDeclImpl(D);
246 }
247 void VisitVarTemplatePartialSpecializationDecl(
248 VarTemplatePartialSpecializationDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000249 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000250 void VisitValueDecl(ValueDecl *VD);
251 void VisitEnumConstantDecl(EnumConstantDecl *ECD);
Argyrios Kyrtzidis8f4eae92010-06-30 08:49:30 +0000252 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
Argyrios Kyrtzidisd4a7e542009-08-19 01:28:35 +0000253 void VisitDeclaratorDecl(DeclaratorDecl *DD);
Chris Lattner698f9252009-04-27 05:27:42 +0000254 void VisitFunctionDecl(FunctionDecl *FD);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000255 void VisitCXXMethodDecl(CXXMethodDecl *D);
256 void VisitCXXConstructorDecl(CXXConstructorDecl *D);
257 void VisitCXXDestructorDecl(CXXDestructorDecl *D);
258 void VisitCXXConversionDecl(CXXConversionDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000259 void VisitFieldDecl(FieldDecl *FD);
John McCall76da55d2013-04-16 07:28:30 +0000260 void VisitMSPropertyDecl(MSPropertyDecl *FD);
Francois Pichet87c2e122010-11-21 06:08:52 +0000261 void VisitIndirectFieldDecl(IndirectFieldDecl *FD);
Larisse Voufoef4579c2013-08-06 01:03:05 +0000262 RedeclarableResult VisitVarDeclImpl(VarDecl *D);
263 void VisitVarDecl(VarDecl *VD) { VisitVarDeclImpl(VD); }
Chris Lattner698f9252009-04-27 05:27:42 +0000264 void VisitImplicitParamDecl(ImplicitParamDecl *PD);
265 void VisitParmVarDecl(ParmVarDecl *PD);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000266 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
267 void VisitTemplateDecl(TemplateDecl *D);
Douglas Gregor0782ef22012-01-06 22:05:37 +0000268 RedeclarableResult VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000269 void VisitClassTemplateDecl(ClassTemplateDecl *D);
Larisse Voufoef4579c2013-08-06 01:03:05 +0000270 void VisitVarTemplateDecl(VarTemplateDecl *D);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000271 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000272 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
Richard Smith3e4c6c42011-05-05 21:57:07 +0000273 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
Argyrios Kyrtzidisb01a5522010-06-20 14:40:59 +0000274 void VisitUsingDecl(UsingDecl *D);
275 void VisitUsingShadowDecl(UsingShadowDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000276 void VisitLinkageSpecDecl(LinkageSpecDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000277 void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
Douglas Gregor15de72c2011-12-02 23:23:56 +0000278 void VisitImportDecl(ImportDecl *D);
Abramo Bagnara6206d532010-06-05 05:09:32 +0000279 void VisitAccessSpecDecl(AccessSpecDecl *D);
Argyrios Kyrtzidis67643342010-06-29 22:47:00 +0000280 void VisitFriendDecl(FriendDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000281 void VisitFriendTemplateDecl(FriendTemplateDecl *D);
282 void VisitStaticAssertDecl(StaticAssertDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000283 void VisitBlockDecl(BlockDecl *BD);
Tareq A. Siraj6afcf882013-04-16 19:37:38 +0000284 void VisitCapturedDecl(CapturedDecl *CD);
Michael Han684aa732013-02-22 17:15:32 +0000285 void VisitEmptyDecl(EmptyDecl *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000286
Chris Lattner698f9252009-04-27 05:27:42 +0000287 std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
Douglas Gregor0f753232011-12-22 01:48:48 +0000288
Douglas Gregordea22cc2012-01-03 17:27:13 +0000289 template<typename T>
Douglas Gregor0f753232011-12-22 01:48:48 +0000290 RedeclarableResult VisitRedeclarable(Redeclarable<T> *D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000291
Douglas Gregordea22cc2012-01-03 17:27:13 +0000292 template<typename T>
293 void mergeRedeclarable(Redeclarable<T> *D, RedeclarableResult &Redecl);
Richard Smithb60fae52013-09-09 16:55:27 +0000294
295 template<typename T>
296 void mergeRedeclarable(Redeclarable<T> *D, T *Existing,
297 RedeclarableResult &Redecl);
298
Richard Smith4ed01222013-10-07 08:02:11 +0000299 template<typename T>
300 void mergeMergeable(Mergeable<T> *D);
301
Sean Hunt9a555912010-05-30 07:21:58 +0000302 // FIXME: Reorder according to DeclNodes.td?
Chris Lattner698f9252009-04-27 05:27:42 +0000303 void VisitObjCMethodDecl(ObjCMethodDecl *D);
304 void VisitObjCContainerDecl(ObjCContainerDecl *D);
305 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
306 void VisitObjCIvarDecl(ObjCIvarDecl *D);
307 void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
308 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000309 void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
310 void VisitObjCImplDecl(ObjCImplDecl *D);
311 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
312 void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
313 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
314 void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
315 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
Alexey Bataevc6400582013-03-22 06:34:35 +0000316 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
Chris Lattner698f9252009-04-27 05:27:42 +0000317 };
318}
319
Sebastian Redld527cc02010-08-18 23:56:48 +0000320uint64_t ASTDeclReader::GetCurrentCursorOffset() {
Douglas Gregor8f1231b2011-07-22 06:10:01 +0000321 return F.DeclsCursor.GetCurrentBitNo() + F.GlobalBitOffset;
Sebastian Redl577d4792010-07-22 22:43:28 +0000322}
323
Sebastian Redld527cc02010-08-18 23:56:48 +0000324void ASTDeclReader::Visit(Decl *D) {
325 DeclVisitor<ASTDeclReader, void>::Visit(D);
Argyrios Kyrtzidisd8a0c6f2010-07-02 11:55:01 +0000326
Jonathan D. Turner953c5642011-06-03 23:11:16 +0000327 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) {
328 if (DD->DeclInfo) {
329 DeclaratorDecl::ExtInfo *Info =
330 DD->DeclInfo.get<DeclaratorDecl::ExtInfo *>();
331 Info->TInfo =
332 GetTypeSourceInfo(Record, Idx);
333 }
334 else {
335 DD->DeclInfo = GetTypeSourceInfo(Record, Idx);
336 }
337 }
338
Argyrios Kyrtzidis91468322010-07-02 15:58:43 +0000339 if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) {
Douglas Gregordeacbdc2010-08-11 12:19:30 +0000340 // if we have a fully initialized TypeDecl, we can safely read its type now.
Douglas Gregor1ab55e92010-12-10 17:03:06 +0000341 TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull());
Douglas Gregor0af55012011-12-16 03:12:41 +0000342 } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
343 // if we have a fully initialized TypeDecl, we can safely read its type now.
344 ID->TypeForDecl = Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull();
Argyrios Kyrtzidis91468322010-07-02 15:58:43 +0000345 } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
346 // FunctionDecl's body was written last after all other Stmts/Exprs.
Douglas Gregore5fa3c22012-10-03 18:34:48 +0000347 // We only read it if FD doesn't already have a body (e.g., from another
348 // module).
Douglas Gregor8d45c2b2012-10-03 18:36:10 +0000349 // FIXME: Also consider = default and = delete.
350 // FIXME: Can we diagnose ODR violations somehow?
Douglas Gregor5456b0fe2012-10-09 17:21:28 +0000351 if (Record[Idx++]) {
352 Reader.PendingBodies[FD] = GetCurrentCursorOffset();
353 HasPendingBody = true;
354 }
Argyrios Kyrtzidis91468322010-07-02 15:58:43 +0000355 }
Argyrios Kyrtzidisd8a0c6f2010-07-02 11:55:01 +0000356}
357
Sebastian Redld527cc02010-08-18 23:56:48 +0000358void ASTDeclReader::VisitDecl(Decl *D) {
Douglas Gregor67da6f62011-03-05 01:35:54 +0000359 if (D->isTemplateParameter()) {
360 // We don't want to deserialize the DeclContext of a template
361 // parameter immediately, because the template parameter might be
362 // used in the formulation of its DeclContext. Use the translation
363 // unit DeclContext as a placeholder.
Argyrios Kyrtzidis7640b022013-02-16 00:48:59 +0000364 GlobalDeclID SemaDCIDForTemplateParmDecl = ReadDeclID(Record, Idx);
365 GlobalDeclID LexicalDCIDForTemplateParmDecl = ReadDeclID(Record, Idx);
366 Reader.addPendingDeclContextInfo(D,
367 SemaDCIDForTemplateParmDecl,
368 LexicalDCIDForTemplateParmDecl);
Douglas Gregor35942772011-09-09 21:34:22 +0000369 D->setDeclContext(Reader.getContext().getTranslationUnitDecl());
Douglas Gregor67da6f62011-03-05 01:35:54 +0000370 } else {
Argyrios Kyrtzidis4bbb8502012-02-09 02:44:08 +0000371 DeclContext *SemaDC = ReadDeclAs<DeclContext>(Record, Idx);
372 DeclContext *LexicalDC = ReadDeclAs<DeclContext>(Record, Idx);
Richard Smithb60fae52013-09-09 16:55:27 +0000373 DeclContext *MergedSemaDC = Reader.MergedDeclContexts.lookup(SemaDC);
Argyrios Kyrtzidis621fc4b2012-02-09 07:46:54 +0000374 // Avoid calling setLexicalDeclContext() directly because it uses
375 // Decl::getASTContext() internally which is unsafe during derialization.
Richard Smithb60fae52013-09-09 16:55:27 +0000376 D->setDeclContextsImpl(MergedSemaDC ? MergedSemaDC : SemaDC, LexicalDC,
377 Reader.getContext());
Douglas Gregor67da6f62011-03-05 01:35:54 +0000378 }
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +0000379 D->setLocation(Reader.ReadSourceLocation(F, RawLocation));
Chris Lattner698f9252009-04-27 05:27:42 +0000380 D->setInvalidDecl(Record[Idx++]);
Argyrios Kyrtzidis4eb9fc02010-10-18 19:20:11 +0000381 if (Record[Idx++]) { // hasAttrs
Sean Huntcf807c42010-08-18 23:23:40 +0000382 AttrVec Attrs;
Argyrios Kyrtzidis4eb9fc02010-10-18 19:20:11 +0000383 Reader.ReadAttributes(F, Attrs, Record, Idx);
Argyrios Kyrtzidis621fc4b2012-02-09 07:46:54 +0000384 // Avoid calling setAttrs() directly because it uses Decl::getASTContext()
385 // internally which is unsafe during derialization.
Argyrios Kyrtzidis4bbb8502012-02-09 02:44:08 +0000386 D->setAttrsImpl(Attrs, Reader.getContext());
Sean Huntcf807c42010-08-18 23:23:40 +0000387 }
Chris Lattner698f9252009-04-27 05:27:42 +0000388 D->setImplicit(Record[Idx++]);
Rafael Espindolae7bd89a2013-10-23 16:46:34 +0000389 D->Used = Record[Idx++];
Argyrios Kyrtzidis6b6b42a2011-04-19 19:51:10 +0000390 D->setReferenced(Record[Idx++]);
Douglas Gregor46cd2182012-01-06 16:59:53 +0000391 D->setTopLevelDeclInObjCContainer(Record[Idx++]);
Chris Lattner698f9252009-04-27 05:27:42 +0000392 D->setAccess((AccessSpecifier)Record[Idx++]);
Douglas Gregor08e0bc12011-09-10 00:09:20 +0000393 D->FromASTFile = true;
Douglas Gregor46cd2182012-01-06 16:59:53 +0000394 D->setModulePrivate(Record[Idx++]);
395 D->Hidden = D->isModulePrivate();
Douglas Gregorf143ffc2012-01-06 16:22:39 +0000396
Douglas Gregorecc2c092011-12-01 22:20:10 +0000397 // Determine whether this declaration is part of a (sub)module. If so, it
398 // may not yet be visible.
399 if (unsigned SubmoduleID = readSubmoduleID(Record, Idx)) {
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +0000400 // Store the owning submodule ID in the declaration.
401 D->setOwningModuleID(SubmoduleID);
402
Douglas Gregorecc2c092011-12-01 22:20:10 +0000403 // Module-private declarations are never visible, so there is no work to do.
Douglas Gregor46cd2182012-01-06 16:59:53 +0000404 if (!D->isModulePrivate()) {
Douglas Gregorecc2c092011-12-01 22:20:10 +0000405 if (Module *Owner = Reader.getSubmodule(SubmoduleID)) {
406 if (Owner->NameVisibility != Module::AllVisible) {
Douglas Gregorf143ffc2012-01-06 16:22:39 +0000407 // The owning module is not visible. Mark this declaration as hidden.
408 D->Hidden = true;
Douglas Gregorecc2c092011-12-01 22:20:10 +0000409
410 // Note that this declaration was hidden because its owning module is
411 // not yet visible.
412 Reader.HiddenNamesMap[Owner].push_back(D);
413 }
414 }
415 }
416 }
Chris Lattner698f9252009-04-27 05:27:42 +0000417}
418
Sebastian Redld527cc02010-08-18 23:56:48 +0000419void ASTDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +0000420 llvm_unreachable("Translation units are not serialized");
Chris Lattner698f9252009-04-27 05:27:42 +0000421}
422
Sebastian Redld527cc02010-08-18 23:56:48 +0000423void ASTDeclReader::VisitNamedDecl(NamedDecl *ND) {
Chris Lattner698f9252009-04-27 05:27:42 +0000424 VisitDecl(ND);
Douglas Gregor393f2492011-07-22 00:38:23 +0000425 ND->setDeclName(Reader.ReadDeclarationName(F, Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000426}
427
Sebastian Redld527cc02010-08-18 23:56:48 +0000428void ASTDeclReader::VisitTypeDecl(TypeDecl *TD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000429 VisitNamedDecl(TD);
Abramo Bagnara344577e2011-03-06 15:48:19 +0000430 TD->setLocStart(ReadSourceLocation(Record, Idx));
Argyrios Kyrtzidisd8a0c6f2010-07-02 11:55:01 +0000431 // Delay type reading until after we have fully initialized the decl.
Douglas Gregor393f2492011-07-22 00:38:23 +0000432 TypeIDForTypeDecl = Reader.getGlobalTypeID(F, Record[Idx++]);
Chris Lattner698f9252009-04-27 05:27:42 +0000433}
434
Douglas Gregor0f456822011-12-19 14:40:25 +0000435void ASTDeclReader::VisitTypedefNameDecl(TypedefNameDecl *TD) {
Douglas Gregorda795b42012-01-04 16:44:10 +0000436 RedeclarableResult Redecl = VisitRedeclarable(TD);
Argyrios Kyrtzidisd8a0c6f2010-07-02 11:55:01 +0000437 VisitTypeDecl(TD);
Enea Zaffanellac2fa6b62013-06-20 12:46:19 +0000438 TypeSourceInfo *TInfo = GetTypeSourceInfo(Record, Idx);
439 if (Record[Idx++]) { // isModed
440 QualType modedT = Reader.readType(F, Record, Idx);
441 TD->setModedTypeSourceInfo(TInfo, modedT);
442 } else
443 TD->setTypeSourceInfo(TInfo);
Douglas Gregorda795b42012-01-04 16:44:10 +0000444 mergeRedeclarable(TD, Redecl);
Douglas Gregor0f456822011-12-19 14:40:25 +0000445}
446
447void ASTDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
448 VisitTypedefNameDecl(TD);
Chris Lattner698f9252009-04-27 05:27:42 +0000449}
450
Richard Smith162e1c12011-04-15 14:24:37 +0000451void ASTDeclReader::VisitTypeAliasDecl(TypeAliasDecl *TD) {
Douglas Gregor0f456822011-12-19 14:40:25 +0000452 VisitTypedefNameDecl(TD);
Richard Smith162e1c12011-04-15 14:24:37 +0000453}
454
Richard Smithe565bfa2013-05-23 01:49:11 +0000455ASTDeclReader::RedeclarableResult ASTDeclReader::VisitTagDecl(TagDecl *TD) {
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +0000456 RedeclarableResult Redecl = VisitRedeclarable(TD);
Douglas Gregord488b3a2011-10-26 17:53:41 +0000457 VisitTypeDecl(TD);
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +0000458
Argyrios Kyrtzidis6b541512010-09-08 19:31:22 +0000459 TD->IdentifierNamespace = Record[Idx++];
Chris Lattner698f9252009-04-27 05:27:42 +0000460 TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
John McCall5e1cdac2011-10-07 06:10:15 +0000461 TD->setCompleteDefinition(Record[Idx++]);
Douglas Gregorb37b6482010-02-12 17:40:34 +0000462 TD->setEmbeddedInDeclarator(Record[Idx++]);
Argyrios Kyrtzidis717a20b2011-09-30 22:11:31 +0000463 TD->setFreeStanding(Record[Idx++]);
David Blaikiee33a0a82013-07-14 01:07:41 +0000464 TD->setCompleteDefinitionRequired(Record[Idx++]);
Sebastian Redlc3632732010-10-05 15:59:54 +0000465 TD->setRBraceLoc(ReadSourceLocation(Record, Idx));
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +0000466
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000467 if (Record[Idx++]) { // hasExtInfo
Douglas Gregor35942772011-09-09 21:34:22 +0000468 TagDecl::ExtInfo *Info = new (Reader.getContext()) TagDecl::ExtInfo();
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000469 ReadQualifierInfo(*Info, Record, Idx);
David Majnemeraa824612013-09-17 23:57:10 +0000470 TD->NamedDeclOrQualifier = Info;
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000471 } else
David Majnemeraa824612013-09-17 23:57:10 +0000472 TD->NamedDeclOrQualifier = ReadDeclAs<NamedDecl>(Record, Idx);
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +0000473
Richard Smithe565bfa2013-05-23 01:49:11 +0000474 mergeRedeclarable(TD, Redecl);
475 return Redecl;
Chris Lattner698f9252009-04-27 05:27:42 +0000476}
477
Sebastian Redld527cc02010-08-18 23:56:48 +0000478void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) {
Chris Lattner698f9252009-04-27 05:27:42 +0000479 VisitTagDecl(ED);
Douglas Gregor1274ccd2010-10-08 23:50:27 +0000480 if (TypeSourceInfo *TI = Reader.GetTypeSourceInfo(F, Record, Idx))
481 ED->setIntegerTypeSourceInfo(TI);
482 else
Douglas Gregor393f2492011-07-22 00:38:23 +0000483 ED->setIntegerType(Reader.readType(F, Record, Idx));
484 ED->setPromotionType(Reader.readType(F, Record, Idx));
John McCall1b5a6182010-05-06 08:49:23 +0000485 ED->setNumPositiveBits(Record[Idx++]);
486 ED->setNumNegativeBits(Record[Idx++]);
Douglas Gregor1274ccd2010-10-08 23:50:27 +0000487 ED->IsScoped = Record[Idx++];
Abramo Bagnaraa88cefd2010-12-03 18:54:17 +0000488 ED->IsScopedUsingClassTag = Record[Idx++];
Douglas Gregor1274ccd2010-10-08 23:50:27 +0000489 ED->IsFixed = Record[Idx++];
Richard Smithf1c66b42012-03-14 23:13:10 +0000490
Richard Smithd692a842013-10-15 22:02:41 +0000491 // If this is a definition subject to the ODR, and we already have a
492 // definition, merge this one into it.
493 if (ED->IsCompleteDefinition &&
494 Reader.getContext().getLangOpts().Modules &&
495 Reader.getContext().getLangOpts().CPlusPlus) {
496 if (EnumDecl *&OldDef = Reader.EnumDefinitions[ED->getCanonicalDecl()]) {
497 Reader.MergedDeclContexts.insert(std::make_pair(ED, OldDef));
498 ED->IsCompleteDefinition = false;
499 } else {
500 OldDef = ED;
501 }
502 }
503
Richard Smithf1c66b42012-03-14 23:13:10 +0000504 if (EnumDecl *InstED = ReadDeclAs<EnumDecl>(Record, Idx)) {
505 TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
506 SourceLocation POI = ReadSourceLocation(Record, Idx);
507 ED->setInstantiationOfMemberEnum(Reader.getContext(), InstED, TSK);
508 ED->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
509 }
Chris Lattner698f9252009-04-27 05:27:42 +0000510}
511
Richard Smithe565bfa2013-05-23 01:49:11 +0000512ASTDeclReader::RedeclarableResult
513ASTDeclReader::VisitRecordDeclImpl(RecordDecl *RD) {
514 RedeclarableResult Redecl = VisitTagDecl(RD);
Chris Lattner698f9252009-04-27 05:27:42 +0000515 RD->setHasFlexibleArrayMember(Record[Idx++]);
516 RD->setAnonymousStructOrUnion(Record[Idx++]);
Fariborz Jahanian643b7df2009-07-08 16:37:44 +0000517 RD->setHasObjectMember(Record[Idx++]);
Fariborz Jahanian3ac83d62013-01-25 23:57:05 +0000518 RD->setHasVolatileMember(Record[Idx++]);
Richard Smithe565bfa2013-05-23 01:49:11 +0000519 return Redecl;
Chris Lattner698f9252009-04-27 05:27:42 +0000520}
521
Sebastian Redld527cc02010-08-18 23:56:48 +0000522void ASTDeclReader::VisitValueDecl(ValueDecl *VD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000523 VisitNamedDecl(VD);
Douglas Gregor393f2492011-07-22 00:38:23 +0000524 VD->setType(Reader.readType(F, Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000525}
526
Sebastian Redld527cc02010-08-18 23:56:48 +0000527void ASTDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000528 VisitValueDecl(ECD);
529 if (Record[Idx++])
Sebastian Redlc3632732010-10-05 15:59:54 +0000530 ECD->setInitExpr(Reader.ReadExpr(F));
Chris Lattner698f9252009-04-27 05:27:42 +0000531 ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
Richard Smithd692a842013-10-15 22:02:41 +0000532 mergeMergeable(ECD);
Chris Lattner698f9252009-04-27 05:27:42 +0000533}
534
Sebastian Redld527cc02010-08-18 23:56:48 +0000535void ASTDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
Argyrios Kyrtzidisd4a7e542009-08-19 01:28:35 +0000536 VisitValueDecl(DD);
Abramo Bagnaraff676cb2011-03-08 08:55:46 +0000537 DD->setInnerLocStart(ReadSourceLocation(Record, Idx));
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000538 if (Record[Idx++]) { // hasExtInfo
539 DeclaratorDecl::ExtInfo *Info
Douglas Gregor35942772011-09-09 21:34:22 +0000540 = new (Reader.getContext()) DeclaratorDecl::ExtInfo();
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000541 ReadQualifierInfo(*Info, Record, Idx);
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000542 DD->DeclInfo = Info;
Jonathan D. Turner953c5642011-06-03 23:11:16 +0000543 }
Argyrios Kyrtzidisd4a7e542009-08-19 01:28:35 +0000544}
545
Sebastian Redld527cc02010-08-18 23:56:48 +0000546void ASTDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
Douglas Gregor70762812012-01-04 17:13:46 +0000547 RedeclarableResult Redecl = VisitRedeclarable(FD);
Douglas Gregord488b3a2011-10-26 17:53:41 +0000548 VisitDeclaratorDecl(FD);
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000549
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +0000550 ReadDeclarationNameLoc(FD->DNLoc, FD->getDeclName(), Record, Idx);
Argyrios Kyrtzidisc8f9af22010-07-05 10:38:01 +0000551 FD->IdentifierNamespace = Record[Idx++];
Douglas Gregor70762812012-01-04 17:13:46 +0000552
553 // FunctionDecl's body is handled last at ASTDeclReader::Visit,
554 // after everything else is read.
Rafael Espindolad2615cc2013-04-03 19:27:57 +0000555
Douglas Gregor70762812012-01-04 17:13:46 +0000556 FD->SClass = (StorageClass)Record[Idx++];
Douglas Gregor70762812012-01-04 17:13:46 +0000557 FD->IsInline = Record[Idx++];
558 FD->IsInlineSpecified = Record[Idx++];
559 FD->IsVirtualAsWritten = Record[Idx++];
560 FD->IsPure = Record[Idx++];
561 FD->HasInheritedPrototype = Record[Idx++];
562 FD->HasWrittenPrototype = Record[Idx++];
563 FD->IsDeleted = Record[Idx++];
564 FD->IsTrivial = Record[Idx++];
565 FD->IsDefaulted = Record[Idx++];
566 FD->IsExplicitlyDefaulted = Record[Idx++];
567 FD->HasImplicitReturnZero = Record[Idx++];
568 FD->IsConstexpr = Record[Idx++];
Argyrios Kyrtzidis35f3f362012-12-06 18:59:10 +0000569 FD->HasSkippedBody = Record[Idx++];
Richard Smithac32d902013-08-07 21:41:30 +0000570 FD->IsLateTemplateParsed = Record[Idx++];
Rafael Espindolaa99ecbc2013-05-25 17:16:20 +0000571 FD->setCachedLinkage(Linkage(Record[Idx++]));
Douglas Gregor70762812012-01-04 17:13:46 +0000572 FD->EndRangeLoc = ReadSourceLocation(Record, Idx);
573
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000574 switch ((FunctionDecl::TemplatedKind)Record[Idx++]) {
575 case FunctionDecl::TK_NonTemplate:
Douglas Gregor70762812012-01-04 17:13:46 +0000576 mergeRedeclarable(FD, Redecl);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000577 break;
578 case FunctionDecl::TK_FunctionTemplate:
Douglas Gregor409448c2011-07-21 22:35:25 +0000579 FD->setDescribedFunctionTemplate(ReadDeclAs<FunctionTemplateDecl>(Record,
580 Idx));
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000581 break;
582 case FunctionDecl::TK_MemberSpecialization: {
Douglas Gregor409448c2011-07-21 22:35:25 +0000583 FunctionDecl *InstFD = ReadDeclAs<FunctionDecl>(Record, Idx);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000584 TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
Sebastian Redlc3632732010-10-05 15:59:54 +0000585 SourceLocation POI = ReadSourceLocation(Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +0000586 FD->setInstantiationOfMemberFunction(Reader.getContext(), InstFD, TSK);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000587 FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
588 break;
589 }
590 case FunctionDecl::TK_FunctionTemplateSpecialization: {
Douglas Gregor409448c2011-07-21 22:35:25 +0000591 FunctionTemplateDecl *Template = ReadDeclAs<FunctionTemplateDecl>(Record,
592 Idx);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000593 TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
594
595 // Template arguments.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000596 SmallVector<TemplateArgument, 8> TemplArgs;
Sebastian Redlc3632732010-10-05 15:59:54 +0000597 Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000598
599 // Template args as written.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000600 SmallVector<TemplateArgumentLoc, 8> TemplArgLocs;
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000601 SourceLocation LAngleLoc, RAngleLoc;
Argyrios Kyrtzidis71a76052011-09-22 20:07:09 +0000602 bool HasTemplateArgumentsAsWritten = Record[Idx++];
603 if (HasTemplateArgumentsAsWritten) {
Argyrios Kyrtzidis5efb06f2010-07-02 11:55:40 +0000604 unsigned NumTemplateArgLocs = Record[Idx++];
605 TemplArgLocs.reserve(NumTemplateArgLocs);
606 for (unsigned i=0; i != NumTemplateArgLocs; ++i)
Sebastian Redl577d4792010-07-22 22:43:28 +0000607 TemplArgLocs.push_back(
Sebastian Redlc3632732010-10-05 15:59:54 +0000608 Reader.ReadTemplateArgumentLoc(F, Record, Idx));
Argyrios Kyrtzidis5efb06f2010-07-02 11:55:40 +0000609
Sebastian Redlc3632732010-10-05 15:59:54 +0000610 LAngleLoc = ReadSourceLocation(Record, Idx);
611 RAngleLoc = ReadSourceLocation(Record, Idx);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000612 }
Argyrios Kyrtzidis7b081c82010-07-05 10:37:55 +0000613
Sebastian Redlc3632732010-10-05 15:59:54 +0000614 SourceLocation POI = ReadSourceLocation(Record, Idx);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000615
Douglas Gregor35942772011-09-09 21:34:22 +0000616 ASTContext &C = Reader.getContext();
Argyrios Kyrtzidisa626a3d2010-09-09 11:28:23 +0000617 TemplateArgumentList *TemplArgList
Douglas Gregor910f8002010-11-07 23:05:16 +0000618 = TemplateArgumentList::CreateCopy(C, TemplArgs.data(), TemplArgs.size());
Argyrios Kyrtzidis71a76052011-09-22 20:07:09 +0000619 TemplateArgumentListInfo TemplArgsInfo(LAngleLoc, RAngleLoc);
Argyrios Kyrtzidisa626a3d2010-09-09 11:28:23 +0000620 for (unsigned i=0, e = TemplArgLocs.size(); i != e; ++i)
Argyrios Kyrtzidis71a76052011-09-22 20:07:09 +0000621 TemplArgsInfo.addArgument(TemplArgLocs[i]);
Argyrios Kyrtzidisa626a3d2010-09-09 11:28:23 +0000622 FunctionTemplateSpecializationInfo *FTInfo
623 = FunctionTemplateSpecializationInfo::Create(C, FD, Template, TSK,
624 TemplArgList,
Argyrios Kyrtzidis71a76052011-09-22 20:07:09 +0000625 HasTemplateArgumentsAsWritten ? &TemplArgsInfo : 0,
626 POI);
Argyrios Kyrtzidisa626a3d2010-09-09 11:28:23 +0000627 FD->TemplateOrSpecialization = FTInfo;
Argyrios Kyrtzidis6b541512010-09-08 19:31:22 +0000628
Argyrios Kyrtzidisa626a3d2010-09-09 11:28:23 +0000629 if (FD->isCanonicalDecl()) { // if canonical add to template's set.
Argyrios Kyrtzidis99a8ca02010-09-13 11:45:48 +0000630 // The template that contains the specializations set. It's not safe to
631 // use getCanonicalDecl on Template since it may still be initializing.
632 FunctionTemplateDecl *CanonTemplate
Douglas Gregor409448c2011-07-21 22:35:25 +0000633 = ReadDeclAs<FunctionTemplateDecl>(Record, Idx);
Argyrios Kyrtzidisa626a3d2010-09-09 11:28:23 +0000634 // Get the InsertPos by FindNodeOrInsertPos() instead of calling
635 // InsertNode(FTInfo) directly to avoid the getASTContext() call in
636 // FunctionTemplateSpecializationInfo's Profile().
637 // We avoid getASTContext because a decl in the parent hierarchy may
638 // be initializing.
Argyrios Kyrtzidis6b541512010-09-08 19:31:22 +0000639 llvm::FoldingSetNodeID ID;
640 FunctionTemplateSpecializationInfo::Profile(ID, TemplArgs.data(),
641 TemplArgs.size(), C);
642 void *InsertPos = 0;
Richard Smith6982bf42013-06-28 04:37:53 +0000643 FunctionTemplateDecl::Common *CommonPtr = CanonTemplate->getCommonPtr();
644 CommonPtr->Specializations.FindNodeOrInsertPos(ID, InsertPos);
Argyrios Kyrtzidis73c87d02012-09-10 23:28:22 +0000645 if (InsertPos)
Richard Smith6982bf42013-06-28 04:37:53 +0000646 CommonPtr->Specializations.InsertNode(FTInfo, InsertPos);
647 else {
648 assert(Reader.getContext().getLangOpts().Modules &&
649 "already deserialized this template specialization");
650 // FIXME: This specialization is a redeclaration of one from another
651 // module. Merge it.
652 }
Argyrios Kyrtzidis6b541512010-09-08 19:31:22 +0000653 }
Argyrios Kyrtzidisdc767e32010-06-28 09:31:34 +0000654 break;
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000655 }
656 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
657 // Templates.
658 UnresolvedSet<8> TemplDecls;
659 unsigned NumTemplates = Record[Idx++];
660 while (NumTemplates--)
Douglas Gregor409448c2011-07-21 22:35:25 +0000661 TemplDecls.addDecl(ReadDeclAs<NamedDecl>(Record, Idx));
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000662
663 // Templates args.
664 TemplateArgumentListInfo TemplArgs;
665 unsigned NumArgs = Record[Idx++];
666 while (NumArgs--)
Sebastian Redlc3632732010-10-05 15:59:54 +0000667 TemplArgs.addArgument(Reader.ReadTemplateArgumentLoc(F, Record, Idx));
668 TemplArgs.setLAngleLoc(ReadSourceLocation(Record, Idx));
669 TemplArgs.setRAngleLoc(ReadSourceLocation(Record, Idx));
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000670
Douglas Gregor35942772011-09-09 21:34:22 +0000671 FD->setDependentTemplateSpecialization(Reader.getContext(),
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000672 TemplDecls, TemplArgs);
Argyrios Kyrtzidisdc767e32010-06-28 09:31:34 +0000673 break;
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +0000674 }
675 }
Argyrios Kyrtzidis5efb06f2010-07-02 11:55:40 +0000676
Chris Lattner6ad9ac02010-05-07 21:43:38 +0000677 // Read in the parameters.
Chris Lattner698f9252009-04-27 05:27:42 +0000678 unsigned NumParams = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +0000679 SmallVector<ParmVarDecl *, 16> Params;
Chris Lattner698f9252009-04-27 05:27:42 +0000680 Params.reserve(NumParams);
681 for (unsigned I = 0; I != NumParams; ++I)
Douglas Gregor409448c2011-07-21 22:35:25 +0000682 Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx));
David Blaikie4278c652011-09-21 18:16:56 +0000683 FD->setParams(Reader.getContext(), Params);
Chris Lattner698f9252009-04-27 05:27:42 +0000684}
685
Sebastian Redld527cc02010-08-18 23:56:48 +0000686void ASTDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000687 VisitNamedDecl(MD);
688 if (Record[Idx++]) {
Douglas Gregor5456b0fe2012-10-09 17:21:28 +0000689 // Load the body on-demand. Most clients won't care, because method
690 // definitions rarely show up in headers.
691 Reader.PendingBodies[MD] = GetCurrentCursorOffset();
692 HasPendingBody = true;
Douglas Gregor409448c2011-07-21 22:35:25 +0000693 MD->setSelfDecl(ReadDeclAs<ImplicitParamDecl>(Record, Idx));
694 MD->setCmdDecl(ReadDeclAs<ImplicitParamDecl>(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000695 }
696 MD->setInstanceMethod(Record[Idx++]);
697 MD->setVariadic(Record[Idx++]);
Jordan Rose1e4691b2012-10-10 16:42:25 +0000698 MD->setPropertyAccessor(Record[Idx++]);
Fariborz Jahanian3fe10412010-07-22 18:24:20 +0000699 MD->setDefined(Record[Idx++]);
Argyrios Kyrtzidise15db6f2012-05-09 16:12:57 +0000700 MD->IsOverriding = Record[Idx++];
Argyrios Kyrtzidis35f3f362012-12-06 18:59:10 +0000701 MD->HasSkippedBody = Record[Idx++];
Argyrios Kyrtzidis72b26252011-10-14 17:41:52 +0000702
703 MD->IsRedeclaration = Record[Idx++];
704 MD->HasRedeclaration = Record[Idx++];
705 if (MD->HasRedeclaration)
706 Reader.getContext().setObjCMethodRedeclaration(MD,
707 ReadDeclAs<ObjCMethodDecl>(Record, Idx));
708
Chris Lattner698f9252009-04-27 05:27:42 +0000709 MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]);
710 MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
Douglas Gregor926df6c2011-06-11 01:09:30 +0000711 MD->SetRelatedResultType(Record[Idx++]);
Douglas Gregor393f2492011-07-22 00:38:23 +0000712 MD->setResultType(Reader.readType(F, Record, Idx));
Sebastian Redlc3632732010-10-05 15:59:54 +0000713 MD->setResultTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
Argyrios Kyrtzidisa0cff722012-06-16 00:46:02 +0000714 MD->DeclEndLoc = ReadSourceLocation(Record, Idx);
Chris Lattner698f9252009-04-27 05:27:42 +0000715 unsigned NumParams = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +0000716 SmallVector<ParmVarDecl *, 16> Params;
Chris Lattner698f9252009-04-27 05:27:42 +0000717 Params.reserve(NumParams);
718 for (unsigned I = 0; I != NumParams; ++I)
Douglas Gregor409448c2011-07-21 22:35:25 +0000719 Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx));
Argyrios Kyrtzidis491306a2011-10-03 06:37:04 +0000720
721 MD->SelLocsKind = Record[Idx++];
722 unsigned NumStoredSelLocs = Record[Idx++];
723 SmallVector<SourceLocation, 16> SelLocs;
724 SelLocs.reserve(NumStoredSelLocs);
725 for (unsigned i = 0; i != NumStoredSelLocs; ++i)
726 SelLocs.push_back(ReadSourceLocation(Record, Idx));
727
728 MD->setParamsAndSelLocs(Reader.getContext(), Params, SelLocs);
Chris Lattner698f9252009-04-27 05:27:42 +0000729}
730
Sebastian Redld527cc02010-08-18 23:56:48 +0000731void ASTDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000732 VisitNamedDecl(CD);
Argyrios Kyrtzidis1711fc92011-10-04 04:48:02 +0000733 CD->setAtStartLoc(ReadSourceLocation(Record, Idx));
734 CD->setAtEndRange(ReadSourceRange(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000735}
736
Sebastian Redld527cc02010-08-18 23:56:48 +0000737void ASTDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) {
Douglas Gregor0f753232011-12-22 01:48:48 +0000738 RedeclarableResult Redecl = VisitRedeclarable(ID);
Chris Lattner698f9252009-04-27 05:27:42 +0000739 VisitObjCContainerDecl(ID);
Douglas Gregor0af55012011-12-16 03:12:41 +0000740 TypeIDForTypeDecl = Reader.getGlobalTypeID(F, Record[Idx++]);
Douglas Gregordea22cc2012-01-03 17:27:13 +0000741 mergeRedeclarable(ID, Redecl);
Douglas Gregor0f753232011-12-22 01:48:48 +0000742
Douglas Gregorc23f8572012-01-15 18:17:48 +0000743 if (Record[Idx++]) {
Douglas Gregor2e5c15b2011-12-15 05:27:12 +0000744 // Read the definition.
745 ID->allocateDefinitionData();
746
Douglas Gregorcc32b442012-01-15 18:08:05 +0000747 // Set the definition data of the canonical declaration, so other
748 // redeclarations will see it.
749 ID->getCanonicalDecl()->Data = ID->Data;
750
Douglas Gregor2e5c15b2011-12-15 05:27:12 +0000751 ObjCInterfaceDecl::DefinitionData &Data = ID->data();
752
753 // Read the superclass.
754 Data.SuperClass = ReadDeclAs<ObjCInterfaceDecl>(Record, Idx);
755 Data.SuperClassLoc = ReadSourceLocation(Record, Idx);
756
Douglas Gregor05c272f2011-12-15 22:34:59 +0000757 Data.EndLoc = ReadSourceLocation(Record, Idx);
758
Douglas Gregor2e5c15b2011-12-15 05:27:12 +0000759 // Read the directly referenced protocols and their SourceLocations.
760 unsigned NumProtocols = Record[Idx++];
761 SmallVector<ObjCProtocolDecl *, 16> Protocols;
762 Protocols.reserve(NumProtocols);
763 for (unsigned I = 0; I != NumProtocols; ++I)
764 Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
765 SmallVector<SourceLocation, 16> ProtoLocs;
766 ProtoLocs.reserve(NumProtocols);
767 for (unsigned I = 0; I != NumProtocols; ++I)
768 ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
769 ID->setProtocolList(Protocols.data(), NumProtocols, ProtoLocs.data(),
770 Reader.getContext());
Ted Kremenek53b94412010-09-01 01:21:15 +0000771
Douglas Gregor2e5c15b2011-12-15 05:27:12 +0000772 // Read the transitive closure of protocols referenced by this class.
773 NumProtocols = Record[Idx++];
774 Protocols.clear();
775 Protocols.reserve(NumProtocols);
776 for (unsigned I = 0; I != NumProtocols; ++I)
777 Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
778 ID->data().AllReferencedProtocols.set(Protocols.data(), NumProtocols,
779 Reader.getContext());
Ted Kremenek53b94412010-09-01 01:21:15 +0000780
Douglas Gregor2e5c15b2011-12-15 05:27:12 +0000781 // We will rebuild this list lazily.
782 ID->setIvarList(0);
783
Douglas Gregor21cf08b2011-12-19 20:51:16 +0000784 // Note that we have deserialized a definition.
785 Reader.PendingDefinitions.insert(ID);
Douglas Gregorcff9f262012-01-27 01:47:08 +0000786
787 // Note that we've loaded this Objective-C class.
788 Reader.ObjCClassesLoaded.push_back(ID);
Douglas Gregorcc32b442012-01-15 18:08:05 +0000789 } else {
790 ID->Data = ID->getCanonicalDecl()->Data;
Douglas Gregor2e5c15b2011-12-15 05:27:12 +0000791 }
Chris Lattner698f9252009-04-27 05:27:42 +0000792}
793
Sebastian Redld527cc02010-08-18 23:56:48 +0000794void ASTDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000795 VisitFieldDecl(IVD);
796 IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record[Idx++]);
Fariborz Jahanian2c18bb72010-08-20 21:21:08 +0000797 // This field will be built lazily.
798 IVD->setNextIvar(0);
Fariborz Jahanianac0021b2010-07-17 18:35:47 +0000799 bool synth = Record[Idx++];
800 IVD->setSynthesize(synth);
Chris Lattner698f9252009-04-27 05:27:42 +0000801}
802
Sebastian Redld527cc02010-08-18 23:56:48 +0000803void ASTDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) {
Douglas Gregordba93612012-01-01 21:47:52 +0000804 RedeclarableResult Redecl = VisitRedeclarable(PD);
Chris Lattner698f9252009-04-27 05:27:42 +0000805 VisitObjCContainerDecl(PD);
Douglas Gregordea22cc2012-01-03 17:27:13 +0000806 mergeRedeclarable(PD, Redecl);
Douglas Gregordba93612012-01-01 21:47:52 +0000807
Douglas Gregorc23f8572012-01-15 18:17:48 +0000808 if (Record[Idx++]) {
Douglas Gregor5e2a1ff2012-01-01 19:29:29 +0000809 // Read the definition.
810 PD->allocateDefinitionData();
811
Douglas Gregorcc32b442012-01-15 18:08:05 +0000812 // Set the definition data of the canonical declaration, so other
813 // redeclarations will see it.
814 PD->getCanonicalDecl()->Data = PD->Data;
815
Douglas Gregor5e2a1ff2012-01-01 19:29:29 +0000816 unsigned NumProtoRefs = Record[Idx++];
817 SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
818 ProtoRefs.reserve(NumProtoRefs);
819 for (unsigned I = 0; I != NumProtoRefs; ++I)
820 ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
821 SmallVector<SourceLocation, 16> ProtoLocs;
822 ProtoLocs.reserve(NumProtoRefs);
823 for (unsigned I = 0; I != NumProtoRefs; ++I)
824 ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
825 PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
826 Reader.getContext());
827
Douglas Gregor1d784b22012-01-01 19:51:50 +0000828 // Note that we have deserialized a definition.
829 Reader.PendingDefinitions.insert(PD);
Douglas Gregorcc32b442012-01-15 18:08:05 +0000830 } else {
831 PD->Data = PD->getCanonicalDecl()->Data;
Douglas Gregor5e2a1ff2012-01-01 19:29:29 +0000832 }
Chris Lattner698f9252009-04-27 05:27:42 +0000833}
834
Sebastian Redld527cc02010-08-18 23:56:48 +0000835void ASTDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000836 VisitFieldDecl(FD);
837}
838
Sebastian Redld527cc02010-08-18 23:56:48 +0000839void ASTDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000840 VisitObjCContainerDecl(CD);
Douglas Gregorcff9f262012-01-27 01:47:08 +0000841 CD->setCategoryNameLoc(ReadSourceLocation(Record, Idx));
Fariborz Jahanianaf300292012-02-20 20:09:20 +0000842 CD->setIvarLBraceLoc(ReadSourceLocation(Record, Idx));
843 CD->setIvarRBraceLoc(ReadSourceLocation(Record, Idx));
Douglas Gregorcff9f262012-01-27 01:47:08 +0000844
845 // Note that this category has been deserialized. We do this before
846 // deserializing the interface declaration, so that it will consider this
847 /// category.
848 Reader.CategoriesDeserialized.insert(CD);
849
Argyrios Kyrtzidis955fadb2011-08-30 19:43:26 +0000850 CD->ClassInterface = ReadDeclAs<ObjCInterfaceDecl>(Record, Idx);
Chris Lattner698f9252009-04-27 05:27:42 +0000851 unsigned NumProtoRefs = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +0000852 SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
Chris Lattner698f9252009-04-27 05:27:42 +0000853 ProtoRefs.reserve(NumProtoRefs);
854 for (unsigned I = 0; I != NumProtoRefs; ++I)
Douglas Gregor409448c2011-07-21 22:35:25 +0000855 ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
Chris Lattner5f9e2722011-07-23 10:55:15 +0000856 SmallVector<SourceLocation, 16> ProtoLocs;
Douglas Gregor18df52b2010-01-16 15:02:53 +0000857 ProtoLocs.reserve(NumProtoRefs);
858 for (unsigned I = 0; I != NumProtoRefs; ++I)
Sebastian Redlc3632732010-10-05 15:59:54 +0000859 ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
Douglas Gregor18df52b2010-01-16 15:02:53 +0000860 CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
Douglas Gregor35942772011-09-09 21:34:22 +0000861 Reader.getContext());
Chris Lattner698f9252009-04-27 05:27:42 +0000862}
863
Sebastian Redld527cc02010-08-18 23:56:48 +0000864void ASTDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
Chris Lattner698f9252009-04-27 05:27:42 +0000865 VisitNamedDecl(CAD);
Douglas Gregor409448c2011-07-21 22:35:25 +0000866 CAD->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000867}
868
Sebastian Redld527cc02010-08-18 23:56:48 +0000869void ASTDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
Chris Lattner698f9252009-04-27 05:27:42 +0000870 VisitNamedDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +0000871 D->setAtLoc(ReadSourceLocation(Record, Idx));
Fariborz Jahanian77bfb8b2012-02-29 22:18:55 +0000872 D->setLParenLoc(ReadSourceLocation(Record, Idx));
Sebastian Redlc3632732010-10-05 15:59:54 +0000873 D->setType(GetTypeSourceInfo(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000874 // FIXME: stable encoding
875 D->setPropertyAttributes(
876 (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
Fariborz Jahanian80aa1cd2010-06-22 23:20:40 +0000877 D->setPropertyAttributesAsWritten(
878 (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
Chris Lattner698f9252009-04-27 05:27:42 +0000879 // FIXME: stable encoding
880 D->setPropertyImplementation(
881 (ObjCPropertyDecl::PropertyControl)Record[Idx++]);
Douglas Gregor393f2492011-07-22 00:38:23 +0000882 D->setGetterName(Reader.ReadDeclarationName(F,Record, Idx).getObjCSelector());
883 D->setSetterName(Reader.ReadDeclarationName(F,Record, Idx).getObjCSelector());
Douglas Gregor409448c2011-07-21 22:35:25 +0000884 D->setGetterMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx));
885 D->setSetterMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx));
886 D->setPropertyIvarDecl(ReadDeclAs<ObjCIvarDecl>(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000887}
888
Sebastian Redld527cc02010-08-18 23:56:48 +0000889void ASTDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
Argyrios Kyrtzidisaecae622009-07-27 19:04:32 +0000890 VisitObjCContainerDecl(D);
Douglas Gregor409448c2011-07-21 22:35:25 +0000891 D->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +0000892}
893
Sebastian Redld527cc02010-08-18 23:56:48 +0000894void ASTDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
Chris Lattner698f9252009-04-27 05:27:42 +0000895 VisitObjCImplDecl(D);
Douglas Gregor95eab172011-07-28 20:55:49 +0000896 D->setIdentifier(Reader.GetIdentifierInfo(F, Record, Idx));
Argyrios Kyrtzidisc6994002011-12-09 00:31:40 +0000897 D->CategoryNameLoc = ReadSourceLocation(Record, Idx);
Chris Lattner698f9252009-04-27 05:27:42 +0000898}
899
Sebastian Redld527cc02010-08-18 23:56:48 +0000900void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
Chris Lattner698f9252009-04-27 05:27:42 +0000901 VisitObjCImplDecl(D);
Douglas Gregor409448c2011-07-21 22:35:25 +0000902 D->setSuperClass(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
Argyrios Kyrtzidis634c5632013-05-03 18:05:44 +0000903 D->SuperLoc = ReadSourceLocation(Record, Idx);
Fariborz Jahanianaf300292012-02-20 20:09:20 +0000904 D->setIvarLBraceLoc(ReadSourceLocation(Record, Idx));
905 D->setIvarRBraceLoc(ReadSourceLocation(Record, Idx));
John McCallb03527a2012-10-17 04:53:31 +0000906 D->setHasNonZeroConstructors(Record[Idx++]);
907 D->setHasDestructors(Record[Idx++]);
Argyrios Kyrtzidis9d50c062010-08-09 10:54:20 +0000908 llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
Sean Huntcbb67482011-01-08 20:30:50 +0000909 = Reader.ReadCXXCtorInitializers(F, Record, Idx);
Chris Lattner698f9252009-04-27 05:27:42 +0000910}
911
912
Sebastian Redld527cc02010-08-18 23:56:48 +0000913void ASTDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
Chris Lattner698f9252009-04-27 05:27:42 +0000914 VisitDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +0000915 D->setAtLoc(ReadSourceLocation(Record, Idx));
Douglas Gregor409448c2011-07-21 22:35:25 +0000916 D->setPropertyDecl(ReadDeclAs<ObjCPropertyDecl>(Record, Idx));
917 D->PropertyIvarDecl = ReadDeclAs<ObjCIvarDecl>(Record, Idx);
Douglas Gregora4ffd852010-11-17 01:03:52 +0000918 D->IvarLoc = ReadSourceLocation(Record, Idx);
Sebastian Redlc3632732010-10-05 15:59:54 +0000919 D->setGetterCXXConstructor(Reader.ReadExpr(F));
920 D->setSetterCXXAssignment(Reader.ReadExpr(F));
Chris Lattner698f9252009-04-27 05:27:42 +0000921}
922
Sebastian Redld527cc02010-08-18 23:56:48 +0000923void ASTDeclReader::VisitFieldDecl(FieldDecl *FD) {
Argyrios Kyrtzidisd4a7e542009-08-19 01:28:35 +0000924 VisitDeclaratorDecl(FD);
Richard Smithca523302012-06-10 03:12:00 +0000925 FD->Mutable = Record[Idx++];
926 if (int BitWidthOrInitializer = Record[Idx++]) {
927 FD->InitializerOrBitWidth.setInt(BitWidthOrInitializer - 1);
928 FD->InitializerOrBitWidth.setPointer(Reader.ReadExpr(F));
929 }
Argyrios Kyrtzidisc91e9f42010-07-04 21:44:35 +0000930 if (!FD->getDeclName()) {
Douglas Gregor409448c2011-07-21 22:35:25 +0000931 if (FieldDecl *Tmpl = ReadDeclAs<FieldDecl>(Record, Idx))
Douglas Gregor35942772011-09-09 21:34:22 +0000932 Reader.getContext().setInstantiatedFromUnnamedFieldDecl(FD, Tmpl);
Argyrios Kyrtzidisc91e9f42010-07-04 21:44:35 +0000933 }
Richard Smith4ed01222013-10-07 08:02:11 +0000934 mergeMergeable(FD);
Chris Lattner698f9252009-04-27 05:27:42 +0000935}
936
John McCall76da55d2013-04-16 07:28:30 +0000937void ASTDeclReader::VisitMSPropertyDecl(MSPropertyDecl *PD) {
938 VisitDeclaratorDecl(PD);
939 PD->GetterId = Reader.GetIdentifierInfo(F, Record, Idx);
940 PD->SetterId = Reader.GetIdentifierInfo(F, Record, Idx);
941}
942
Francois Pichet87c2e122010-11-21 06:08:52 +0000943void ASTDeclReader::VisitIndirectFieldDecl(IndirectFieldDecl *FD) {
944 VisitValueDecl(FD);
945
946 FD->ChainingSize = Record[Idx++];
947 assert(FD->ChainingSize >= 2 && "Anonymous chaining must be >= 2");
Douglas Gregor35942772011-09-09 21:34:22 +0000948 FD->Chaining = new (Reader.getContext())NamedDecl*[FD->ChainingSize];
Francois Pichet87c2e122010-11-21 06:08:52 +0000949
950 for (unsigned I = 0; I != FD->ChainingSize; ++I)
Douglas Gregor409448c2011-07-21 22:35:25 +0000951 FD->Chaining[I] = ReadDeclAs<NamedDecl>(Record, Idx);
Francois Pichet87c2e122010-11-21 06:08:52 +0000952}
953
Larisse Voufoef4579c2013-08-06 01:03:05 +0000954ASTDeclReader::RedeclarableResult ASTDeclReader::VisitVarDeclImpl(VarDecl *VD) {
Douglas Gregor4791fa22012-01-04 17:21:36 +0000955 RedeclarableResult Redecl = VisitRedeclarable(VD);
Douglas Gregord488b3a2011-10-26 17:53:41 +0000956 VisitDeclaratorDecl(VD);
Rafael Espindolad2615cc2013-04-03 19:27:57 +0000957
John McCallf1e4fbf2011-05-01 02:13:58 +0000958 VD->VarDeclBits.SClass = (StorageClass)Record[Idx++];
Enea Zaffanelladc173842013-05-04 08:27:07 +0000959 VD->VarDeclBits.TSCSpec = Record[Idx++];
Sebastian Redl5b9cc5d2012-02-11 23:51:47 +0000960 VD->VarDeclBits.InitStyle = Record[Idx++];
John McCallf1e4fbf2011-05-01 02:13:58 +0000961 VD->VarDeclBits.ExceptionVar = Record[Idx++];
962 VD->VarDeclBits.NRVOVariable = Record[Idx++];
963 VD->VarDeclBits.CXXForRangeDecl = Record[Idx++];
John McCall7acddac2011-06-17 06:42:21 +0000964 VD->VarDeclBits.ARCPseudoStrong = Record[Idx++];
Douglas Gregor67d45ec2012-09-20 23:43:29 +0000965 VD->VarDeclBits.IsConstexpr = Record[Idx++];
Richard Smith04fa7a32013-09-28 04:02:39 +0000966 VD->VarDeclBits.IsInitCapture = Record[Idx++];
Richard Smithdd9459f2013-08-13 18:18:50 +0000967 VD->VarDeclBits.PreviousDeclInSameBlockScope = Record[Idx++];
Richard Smitha41c97a2013-09-20 01:15:31 +0000968 Linkage VarLinkage = Linkage(Record[Idx++]);
969 VD->setCachedLinkage(VarLinkage);
970
971 // Reconstruct the one piece of the IdentifierNamespace that we need.
972 if (VarLinkage != NoLinkage &&
973 VD->getLexicalDeclContext()->isFunctionOrMethod())
974 VD->setLocalExternDecl();
Rafael Espindolaa99ecbc2013-05-25 17:16:20 +0000975
Douglas Gregor91534a32012-01-13 23:49:34 +0000976 // Only true variables (not parameters or implicit parameters) can be merged.
Larisse Voufo4a919892013-08-14 03:09:19 +0000977 if (VD->getKind() != Decl::ParmVar && VD->getKind() != Decl::ImplicitParam)
Douglas Gregor91534a32012-01-13 23:49:34 +0000978 mergeRedeclarable(VD, Redecl);
Douglas Gregor4791fa22012-01-04 17:21:36 +0000979
Richard Smith099e7f62011-12-19 06:19:21 +0000980 if (uint64_t Val = Record[Idx++]) {
Sebastian Redlc3632732010-10-05 15:59:54 +0000981 VD->setInit(Reader.ReadExpr(F));
Richard Smith099e7f62011-12-19 06:19:21 +0000982 if (Val > 1) {
983 EvaluatedStmt *Eval = VD->ensureEvaluatedStmt();
984 Eval->CheckedICE = true;
985 Eval->IsICE = Val == 3;
986 }
987 }
Argyrios Kyrtzidis9421adc2010-07-04 21:44:00 +0000988
Larisse Voufo4a919892013-08-14 03:09:19 +0000989 enum VarKind {
990 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
991 };
992 switch ((VarKind)Record[Idx++]) {
993 case VarNotTemplate:
994 break;
995 case VarTemplate:
996 VD->setDescribedVarTemplate(ReadDeclAs<VarTemplateDecl>(Record, Idx));
997 break;
998 case StaticDataMemberSpecialization: { // HasMemberSpecializationInfo.
Douglas Gregor409448c2011-07-21 22:35:25 +0000999 VarDecl *Tmpl = ReadDeclAs<VarDecl>(Record, Idx);
Argyrios Kyrtzidis9421adc2010-07-04 21:44:00 +00001000 TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
Sebastian Redlc3632732010-10-05 15:59:54 +00001001 SourceLocation POI = ReadSourceLocation(Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00001002 Reader.getContext().setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI);
Larisse Voufo4a919892013-08-14 03:09:19 +00001003 break;
1004 }
Argyrios Kyrtzidis9421adc2010-07-04 21:44:00 +00001005 }
Larisse Voufoef4579c2013-08-06 01:03:05 +00001006
1007 return Redecl;
Chris Lattner698f9252009-04-27 05:27:42 +00001008}
1009
Sebastian Redld527cc02010-08-18 23:56:48 +00001010void ASTDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
Chris Lattner698f9252009-04-27 05:27:42 +00001011 VisitVarDecl(PD);
1012}
1013
Sebastian Redld527cc02010-08-18 23:56:48 +00001014void ASTDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
Chris Lattner698f9252009-04-27 05:27:42 +00001015 VisitVarDecl(PD);
John McCall70798862011-05-02 00:30:12 +00001016 unsigned isObjCMethodParam = Record[Idx++];
1017 unsigned scopeDepth = Record[Idx++];
1018 unsigned scopeIndex = Record[Idx++];
1019 unsigned declQualifier = Record[Idx++];
1020 if (isObjCMethodParam) {
1021 assert(scopeDepth == 0);
1022 PD->setObjCMethodScopeInfo(scopeIndex);
1023 PD->ParmVarDeclBits.ScopeDepthOrObjCQuals = declQualifier;
1024 } else {
1025 PD->setScopeInfo(scopeDepth, scopeIndex);
1026 }
John McCallf1e4fbf2011-05-01 02:13:58 +00001027 PD->ParmVarDeclBits.IsKNRPromoted = Record[Idx++];
1028 PD->ParmVarDeclBits.HasInheritedDefaultArg = Record[Idx++];
Argyrios Kyrtzidis691d77f2010-07-04 21:44:07 +00001029 if (Record[Idx++]) // hasUninstantiatedDefaultArg.
Sebastian Redlc3632732010-10-05 15:59:54 +00001030 PD->setUninstantiatedDefaultArg(Reader.ReadExpr(F));
Richard Smith98f07232013-06-24 22:51:00 +00001031
1032 // FIXME: If this is a redeclaration of a function from another module, handle
1033 // inheritance of default arguments.
Chris Lattner698f9252009-04-27 05:27:42 +00001034}
1035
Sebastian Redld527cc02010-08-18 23:56:48 +00001036void ASTDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
Chris Lattner698f9252009-04-27 05:27:42 +00001037 VisitDecl(AD);
Sebastian Redlc3632732010-10-05 15:59:54 +00001038 AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr(F)));
Abramo Bagnara21e006e2011-03-03 14:20:18 +00001039 AD->setRParenLoc(ReadSourceLocation(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +00001040}
1041
Sebastian Redld527cc02010-08-18 23:56:48 +00001042void ASTDeclReader::VisitBlockDecl(BlockDecl *BD) {
Chris Lattner698f9252009-04-27 05:27:42 +00001043 VisitDecl(BD);
Sebastian Redlc3632732010-10-05 15:59:54 +00001044 BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt(F)));
1045 BD->setSignatureAsWritten(GetTypeSourceInfo(Record, Idx));
Chris Lattner698f9252009-04-27 05:27:42 +00001046 unsigned NumParams = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +00001047 SmallVector<ParmVarDecl *, 16> Params;
Chris Lattner698f9252009-04-27 05:27:42 +00001048 Params.reserve(NumParams);
1049 for (unsigned I = 0; I != NumParams; ++I)
Douglas Gregor409448c2011-07-21 22:35:25 +00001050 Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx));
David Blaikie4278c652011-09-21 18:16:56 +00001051 BD->setParams(Params);
John McCall469a1eb2011-02-02 13:00:07 +00001052
John McCallb8896142012-04-13 17:33:29 +00001053 BD->setIsVariadic(Record[Idx++]);
1054 BD->setBlockMissingReturnType(Record[Idx++]);
1055 BD->setIsConversionFromLambda(Record[Idx++]);
1056
John McCall469a1eb2011-02-02 13:00:07 +00001057 bool capturesCXXThis = Record[Idx++];
John McCall6b5a61b2011-02-07 10:33:21 +00001058 unsigned numCaptures = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +00001059 SmallVector<BlockDecl::Capture, 16> captures;
John McCall6b5a61b2011-02-07 10:33:21 +00001060 captures.reserve(numCaptures);
1061 for (unsigned i = 0; i != numCaptures; ++i) {
Douglas Gregor409448c2011-07-21 22:35:25 +00001062 VarDecl *decl = ReadDeclAs<VarDecl>(Record, Idx);
John McCall6b5a61b2011-02-07 10:33:21 +00001063 unsigned flags = Record[Idx++];
1064 bool byRef = (flags & 1);
1065 bool nested = (flags & 2);
1066 Expr *copyExpr = ((flags & 4) ? Reader.ReadExpr(F) : 0);
1067
1068 captures.push_back(BlockDecl::Capture(decl, byRef, nested, copyExpr));
1069 }
Douglas Gregor35942772011-09-09 21:34:22 +00001070 BD->setCaptures(Reader.getContext(), captures.begin(),
John McCall6b5a61b2011-02-07 10:33:21 +00001071 captures.end(), capturesCXXThis);
Chris Lattner698f9252009-04-27 05:27:42 +00001072}
1073
Ben Langmuirdc5be4f2013-05-03 19:20:19 +00001074void ASTDeclReader::VisitCapturedDecl(CapturedDecl *CD) {
1075 VisitDecl(CD);
1076 // Body is set by VisitCapturedStmt.
1077 for (unsigned i = 0; i < CD->NumParams; ++i)
1078 CD->setParam(i, ReadDeclAs<ImplicitParamDecl>(Record, Idx));
Tareq A. Siraj6afcf882013-04-16 19:37:38 +00001079}
1080
Sebastian Redld527cc02010-08-18 23:56:48 +00001081void ASTDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001082 VisitDecl(D);
1083 D->setLanguage((LinkageSpecDecl::LanguageIDs)Record[Idx++]);
Abramo Bagnaraa2026c92011-03-08 16:41:52 +00001084 D->setExternLoc(ReadSourceLocation(Record, Idx));
Abramo Bagnara5f6bcbe2011-03-03 14:52:38 +00001085 D->setRBraceLoc(ReadSourceLocation(Record, Idx));
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001086}
1087
Chris Lattnerad8dcf42011-02-17 07:39:24 +00001088void ASTDeclReader::VisitLabelDecl(LabelDecl *D) {
1089 VisitNamedDecl(D);
Abramo Bagnara67843042011-03-05 18:21:20 +00001090 D->setLocStart(ReadSourceLocation(Record, Idx));
Chris Lattnerad8dcf42011-02-17 07:39:24 +00001091}
1092
1093
Sebastian Redld527cc02010-08-18 23:56:48 +00001094void ASTDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00001095 RedeclarableResult Redecl = VisitRedeclarable(D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001096 VisitNamedDecl(D);
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00001097 D->setInline(Record[Idx++]);
Abramo Bagnaraacba90f2011-03-08 12:38:20 +00001098 D->LocStart = ReadSourceLocation(Record, Idx);
1099 D->RBraceLoc = ReadSourceLocation(Record, Idx);
Richard Smithe565bfa2013-05-23 01:49:11 +00001100 // FIXME: At the point of this call, D->getCanonicalDecl() returns 0.
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00001101 mergeRedeclarable(D, Redecl);
1102
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00001103 if (Redecl.getFirstID() == ThisDeclID) {
Douglas Gregor1c3875d2012-01-09 18:07:24 +00001104 // Each module has its own anonymous namespace, which is disjoint from
1105 // any other module's anonymous namespaces, so don't attach the anonymous
1106 // namespace at all.
1107 NamespaceDecl *Anon = ReadDeclAs<NamespaceDecl>(Record, Idx);
1108 if (F.Kind != MK_Module)
1109 D->setAnonymousNamespace(Anon);
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00001110 } else {
1111 // Link this namespace back to the first declaration, which has already
1112 // been deserialized.
Rafael Espindolabc650912013-10-17 15:37:26 +00001113 D->AnonOrFirstNamespaceAndInline.setPointer(D->getFirstDecl());
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00001114 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001115}
1116
Sebastian Redld527cc02010-08-18 23:56:48 +00001117void ASTDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001118 VisitNamedDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +00001119 D->NamespaceLoc = ReadSourceLocation(Record, Idx);
Sebastian Redlc3632732010-10-05 15:59:54 +00001120 D->IdentLoc = ReadSourceLocation(Record, Idx);
Douglas Gregor0cfaf6a2011-02-25 17:08:07 +00001121 D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
Douglas Gregor409448c2011-07-21 22:35:25 +00001122 D->Namespace = ReadDeclAs<NamedDecl>(Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001123}
1124
Sebastian Redld527cc02010-08-18 23:56:48 +00001125void ASTDeclReader::VisitUsingDecl(UsingDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001126 VisitNamedDecl(D);
Enea Zaffanella8d030c72013-07-22 10:54:09 +00001127 D->setUsingLoc(ReadSourceLocation(Record, Idx));
Douglas Gregordc355712011-02-25 00:36:19 +00001128 D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00001129 ReadDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record, Idx);
Benjamin Kramer9bc6fb62012-01-07 19:09:05 +00001130 D->FirstUsingShadow.setPointer(ReadDeclAs<UsingShadowDecl>(Record, Idx));
Enea Zaffanella8d030c72013-07-22 10:54:09 +00001131 D->setTypename(Record[Idx++]);
Douglas Gregor409448c2011-07-21 22:35:25 +00001132 if (NamedDecl *Pattern = ReadDeclAs<NamedDecl>(Record, Idx))
Douglas Gregor35942772011-09-09 21:34:22 +00001133 Reader.getContext().setInstantiatedFromUsingDecl(D, Pattern);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001134}
1135
Sebastian Redld527cc02010-08-18 23:56:48 +00001136void ASTDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) {
Richard Smithf06a28932013-10-23 02:17:46 +00001137 RedeclarableResult Redecl = VisitRedeclarable(D);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001138 VisitNamedDecl(D);
Douglas Gregor409448c2011-07-21 22:35:25 +00001139 D->setTargetDecl(ReadDeclAs<NamedDecl>(Record, Idx));
1140 D->UsingOrNextShadow = ReadDeclAs<NamedDecl>(Record, Idx);
1141 UsingShadowDecl *Pattern = ReadDeclAs<UsingShadowDecl>(Record, Idx);
Argyrios Kyrtzidisc91e9f42010-07-04 21:44:35 +00001142 if (Pattern)
Douglas Gregor35942772011-09-09 21:34:22 +00001143 Reader.getContext().setInstantiatedFromUsingShadowDecl(D, Pattern);
Richard Smithf06a28932013-10-23 02:17:46 +00001144 mergeRedeclarable(D, Redecl);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001145}
1146
Sebastian Redld527cc02010-08-18 23:56:48 +00001147void ASTDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001148 VisitNamedDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +00001149 D->UsingLoc = ReadSourceLocation(Record, Idx);
1150 D->NamespaceLoc = ReadSourceLocation(Record, Idx);
Douglas Gregordb992412011-02-25 16:33:46 +00001151 D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
Douglas Gregor409448c2011-07-21 22:35:25 +00001152 D->NominatedNamespace = ReadDeclAs<NamedDecl>(Record, Idx);
1153 D->CommonAncestor = ReadDeclAs<DeclContext>(Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001154}
1155
Sebastian Redld527cc02010-08-18 23:56:48 +00001156void ASTDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001157 VisitValueDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +00001158 D->setUsingLoc(ReadSourceLocation(Record, Idx));
Douglas Gregordc355712011-02-25 00:36:19 +00001159 D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00001160 ReadDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001161}
1162
Sebastian Redld527cc02010-08-18 23:56:48 +00001163void ASTDeclReader::VisitUnresolvedUsingTypenameDecl(
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001164 UnresolvedUsingTypenameDecl *D) {
1165 VisitTypeDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +00001166 D->TypenameLocation = ReadSourceLocation(Record, Idx);
Douglas Gregordc355712011-02-25 00:36:19 +00001167 D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001168}
1169
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001170void ASTDeclReader::ReadCXXDefinitionData(
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00001171 struct CXXRecordDecl::DefinitionData &Data,
1172 const RecordData &Record, unsigned &Idx) {
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001173 // Note: the caller has deserialized the IsLambda bit already.
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001174 Data.UserDeclaredConstructor = Record[Idx++];
Richard Smith7d04d3a2012-11-30 05:11:39 +00001175 Data.UserDeclaredSpecialMembers = Record[Idx++];
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001176 Data.Aggregate = Record[Idx++];
1177 Data.PlainOldData = Record[Idx++];
1178 Data.Empty = Record[Idx++];
1179 Data.Polymorphic = Record[Idx++];
1180 Data.Abstract = Record[Idx++];
Chandler Carruthec997dc2011-04-30 10:07:30 +00001181 Data.IsStandardLayout = Record[Idx++];
Chandler Carrutha8225442011-04-30 09:17:45 +00001182 Data.HasNoNonEmptyBases = Record[Idx++];
1183 Data.HasPrivateFields = Record[Idx++];
1184 Data.HasProtectedFields = Record[Idx++];
1185 Data.HasPublicFields = Record[Idx++];
Douglas Gregor2bb11012011-05-13 01:05:07 +00001186 Data.HasMutableFields = Record[Idx++];
Richard Smithdfefb842012-02-25 07:33:38 +00001187 Data.HasOnlyCMembers = Record[Idx++];
Richard Smithd079abf2012-05-07 01:07:30 +00001188 Data.HasInClassInitializer = Record[Idx++];
Richard Smithd5bc8672012-12-08 02:01:17 +00001189 Data.HasUninitializedReferenceMember = Record[Idx++];
Richard Smithbc2a35d2012-12-08 08:32:28 +00001190 Data.NeedOverloadResolutionForMoveConstructor = Record[Idx++];
1191 Data.NeedOverloadResolutionForMoveAssignment = Record[Idx++];
1192 Data.NeedOverloadResolutionForDestructor = Record[Idx++];
1193 Data.DefaultedMoveConstructorIsDeleted = Record[Idx++];
1194 Data.DefaultedMoveAssignmentIsDeleted = Record[Idx++];
1195 Data.DefaultedDestructorIsDeleted = Record[Idx++];
Richard Smith7d04d3a2012-11-30 05:11:39 +00001196 Data.HasTrivialSpecialMembers = Record[Idx++];
1197 Data.HasIrrelevantDestructor = Record[Idx++];
Richard Smith6b8bc072011-08-10 18:11:37 +00001198 Data.HasConstexprNonCopyMoveConstructor = Record[Idx++];
Richard Smithdfefb842012-02-25 07:33:38 +00001199 Data.DefaultedDefaultConstructorIsConstexpr = Record[Idx++];
Richard Smithdfefb842012-02-25 07:33:38 +00001200 Data.HasConstexprDefaultConstructor = Record[Idx++];
Chandler Carruth9b6347c2011-04-24 02:49:34 +00001201 Data.HasNonLiteralTypeFieldsOrBases = Record[Idx++];
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001202 Data.ComputedVisibleConversions = Record[Idx++];
Sean Huntcdee3fe2011-05-11 22:34:38 +00001203 Data.UserProvidedDefaultConstructor = Record[Idx++];
Richard Smith7d04d3a2012-11-30 05:11:39 +00001204 Data.DeclaredSpecialMembers = Record[Idx++];
Richard Smithacf796b2012-11-28 06:23:12 +00001205 Data.ImplicitCopyConstructorHasConstParam = Record[Idx++];
1206 Data.ImplicitCopyAssignmentHasConstParam = Record[Idx++];
1207 Data.HasDeclaredCopyConstructorWithConstParam = Record[Idx++];
1208 Data.HasDeclaredCopyAssignmentWithConstParam = Record[Idx++];
Sebastian Redl14c36332011-08-31 13:59:56 +00001209 Data.FailedImplicitMoveConstructor = Record[Idx++];
1210 Data.FailedImplicitMoveAssignment = Record[Idx++];
Anders Carlssonfaa6afd2011-01-22 18:11:02 +00001211
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001212 Data.NumBases = Record[Idx++];
Douglas Gregor7c789c12010-10-29 22:39:52 +00001213 if (Data.NumBases)
Douglas Gregore92b8a12011-08-04 00:01:48 +00001214 Data.Bases = Reader.readCXXBaseSpecifiers(F, Record, Idx);
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001215 Data.NumVBases = Record[Idx++];
Douglas Gregor7c789c12010-10-29 22:39:52 +00001216 if (Data.NumVBases)
Douglas Gregore92b8a12011-08-04 00:01:48 +00001217 Data.VBases = Reader.readCXXBaseSpecifiers(F, Record, Idx);
Douglas Gregor7c789c12010-10-29 22:39:52 +00001218
Douglas Gregor409448c2011-07-21 22:35:25 +00001219 Reader.ReadUnresolvedSet(F, Data.Conversions, Record, Idx);
1220 Reader.ReadUnresolvedSet(F, Data.VisibleConversions, Record, Idx);
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001221 assert(Data.Definition && "Data.Definition should be already set!");
Richard Smith868edfa2013-08-30 00:23:29 +00001222 Data.FirstFriend = ReadDeclID(Record, Idx);
1223
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001224 if (Data.IsLambda) {
1225 typedef LambdaExpr::Capture Capture;
1226 CXXRecordDecl::LambdaDefinitionData &Lambda
1227 = static_cast<CXXRecordDecl::LambdaDefinitionData &>(Data);
Douglas Gregorf4b7de12012-02-21 19:11:17 +00001228 Lambda.Dependent = Record[Idx++];
Faisal Valibef582b2013-10-23 16:10:50 +00001229 Lambda.IsGenericLambda = Record[Idx++];
1230 Lambda.CaptureDefault = Record[Idx++];
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001231 Lambda.NumCaptures = Record[Idx++];
1232 Lambda.NumExplicitCaptures = Record[Idx++];
Douglas Gregor9e8c92a2012-02-20 19:44:39 +00001233 Lambda.ManglingNumber = Record[Idx++];
Douglas Gregorccc1b5e2012-02-21 00:37:24 +00001234 Lambda.ContextDecl = ReadDecl(Record, Idx);
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001235 Lambda.Captures
1236 = (Capture*)Reader.Context.Allocate(sizeof(Capture)*Lambda.NumCaptures);
1237 Capture *ToCapture = Lambda.Captures;
Eli Friedman8da8a662012-09-19 01:18:11 +00001238 Lambda.MethodTyInfo = GetTypeSourceInfo(Record, Idx);
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001239 for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
1240 SourceLocation Loc = ReadSourceLocation(Record, Idx);
1241 bool IsImplicit = Record[Idx++];
1242 LambdaCaptureKind Kind = static_cast<LambdaCaptureKind>(Record[Idx++]);
Richard Smith0d8e9642013-05-16 06:20:58 +00001243 switch (Kind) {
1244 case LCK_This:
1245 *ToCapture++ = Capture(Loc, IsImplicit, Kind, 0, SourceLocation());
1246 break;
1247 case LCK_ByCopy:
Richard Smith04fa7a32013-09-28 04:02:39 +00001248 case LCK_ByRef:
Richard Smith0d8e9642013-05-16 06:20:58 +00001249 VarDecl *Var = ReadDeclAs<VarDecl>(Record, Idx);
1250 SourceLocation EllipsisLoc = ReadSourceLocation(Record, Idx);
1251 *ToCapture++ = Capture(Loc, IsImplicit, Kind, Var, EllipsisLoc);
1252 break;
1253 }
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001254 }
1255 }
Argyrios Kyrtzidisc01dc6f2010-10-24 17:26:27 +00001256}
1257
Richard Smithe565bfa2013-05-23 01:49:11 +00001258ASTDeclReader::RedeclarableResult
1259ASTDeclReader::VisitCXXRecordDeclImpl(CXXRecordDecl *D) {
1260 RedeclarableResult Redecl = VisitRecordDeclImpl(D);
Argyrios Kyrtzidis9703b0d2010-10-20 00:11:15 +00001261
Douglas Gregorc23f8572012-01-15 18:17:48 +00001262 ASTContext &C = Reader.getContext();
Richard Smithb60fae52013-09-09 16:55:27 +00001263 bool WasDefinition = Record[Idx++];
1264 if (WasDefinition) {
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001265 // Determine whether this is a lambda closure type, so that we can
1266 // allocate the appropriate DefinitionData structure.
1267 bool IsLambda = Record[Idx++];
1268 if (IsLambda)
Eli Friedman8da8a662012-09-19 01:18:11 +00001269 D->DefinitionData = new (C) CXXRecordDecl::LambdaDefinitionData(D, 0,
Faisal Valibef582b2013-10-23 16:10:50 +00001270 false,
1271 false, LCD_None);
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00001272 else
1273 D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
Richard Smithb60fae52013-09-09 16:55:27 +00001274
1275 ReadCXXDefinitionData(*D->DefinitionData, Record, Idx);
1276
Douglas Gregorcc32b442012-01-15 18:08:05 +00001277 // Propagate the DefinitionData pointer to the canonical declaration, so
1278 // that all other deserialized declarations will see it.
Richard Smithb60fae52013-09-09 16:55:27 +00001279 CXXRecordDecl *Canon = D->getCanonicalDecl();
1280 if (Canon == D) {
1281 // Nothing to do.
1282 } else if (!Canon->DefinitionData) {
1283 Canon->DefinitionData = D->DefinitionData;
1284
1285 // Note that we have deserialized a definition. Any declarations
1286 // deserialized before this one will be be given the DefinitionData
1287 // pointer at the end.
1288 Reader.PendingDefinitions.insert(D);
1289 } else {
1290 // We have already deserialized a definition of this record. This
1291 // definition is no longer really a definition. Note that the pre-existing
1292 // definition is the *real* definition.
1293 // FIXME: Check DefinitionData for consistency with prior definition.
1294 Reader.MergedDeclContexts.insert(
1295 std::make_pair(D, D->getCanonicalDecl()->DefinitionData->Definition));
1296 D->IsCompleteDefinition = false;
1297 D->DefinitionData = D->getCanonicalDecl()->DefinitionData;
1298 }
Douglas Gregorcc32b442012-01-15 18:08:05 +00001299 } else {
1300 // Propagate DefinitionData pointer from the canonical declaration.
Richard Smithb60fae52013-09-09 16:55:27 +00001301 D->DefinitionData = D->getCanonicalDecl()->DefinitionData;
Argyrios Kyrtzidis37ffed32010-07-02 11:55:32 +00001302 }
1303
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001304 enum CXXRecKind {
1305 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
1306 };
1307 switch ((CXXRecKind)Record[Idx++]) {
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001308 case CXXRecNotTemplate:
1309 break;
1310 case CXXRecTemplate:
Douglas Gregor409448c2011-07-21 22:35:25 +00001311 D->TemplateOrInstantiation = ReadDeclAs<ClassTemplateDecl>(Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001312 break;
1313 case CXXRecMemberSpecialization: {
Douglas Gregor409448c2011-07-21 22:35:25 +00001314 CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001315 TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
Sebastian Redlc3632732010-10-05 15:59:54 +00001316 SourceLocation POI = ReadSourceLocation(Record, Idx);
Argyrios Kyrtzidis8b996b82010-09-13 11:45:25 +00001317 MemberSpecializationInfo *MSI = new (C) MemberSpecializationInfo(RD, TSK);
1318 MSI->setPointOfInstantiation(POI);
1319 D->TemplateOrInstantiation = MSI;
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001320 break;
1321 }
1322 }
Argyrios Kyrtzidis36d2fd42010-10-14 20:14:38 +00001323
Richard Smithcd03f862013-08-29 23:59:27 +00001324 // Lazily load the key function to avoid deserializing every method so we can
Argyrios Kyrtzidis36d2fd42010-10-14 20:14:38 +00001325 // compute it.
Richard Smithb60fae52013-09-09 16:55:27 +00001326 if (WasDefinition) {
1327 DeclID KeyFn = ReadDeclID(Record, Idx);
1328 if (KeyFn && D->IsCompleteDefinition)
Richard Smithcd03f862013-08-29 23:59:27 +00001329 C.KeyFunctions[D] = KeyFn;
Argyrios Kyrtzidis36d2fd42010-10-14 20:14:38 +00001330 }
Richard Smithe565bfa2013-05-23 01:49:11 +00001331
1332 return Redecl;
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001333}
1334
Sebastian Redld527cc02010-08-18 23:56:48 +00001335void ASTDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001336 VisitFunctionDecl(D);
Argyrios Kyrtzidisc91e9f42010-07-04 21:44:35 +00001337 unsigned NumOverridenMethods = Record[Idx++];
1338 while (NumOverridenMethods--) {
Argyrios Kyrtzidisc91e9f42010-07-04 21:44:35 +00001339 // Avoid invariant checking of CXXMethodDecl::addOverriddenMethod,
1340 // MD may be initializing.
Douglas Gregor409448c2011-07-21 22:35:25 +00001341 if (CXXMethodDecl *MD = ReadDeclAs<CXXMethodDecl>(Record, Idx))
Douglas Gregor35942772011-09-09 21:34:22 +00001342 Reader.getContext().addOverriddenMethod(D, MD);
Argyrios Kyrtzidisc91e9f42010-07-04 21:44:35 +00001343 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001344}
1345
Sebastian Redld527cc02010-08-18 23:56:48 +00001346void ASTDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001347 VisitCXXMethodDecl(D);
Argyrios Kyrtzidis91468322010-07-02 15:58:43 +00001348
1349 D->IsExplicitSpecified = Record[Idx++];
Sean Huntcbb67482011-01-08 20:30:50 +00001350 llvm::tie(D->CtorInitializers, D->NumCtorInitializers)
1351 = Reader.ReadCXXCtorInitializers(F, Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001352}
1353
Sebastian Redld527cc02010-08-18 23:56:48 +00001354void ASTDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001355 VisitCXXMethodDecl(D);
Argyrios Kyrtzidis91468322010-07-02 15:58:43 +00001356
Douglas Gregor409448c2011-07-21 22:35:25 +00001357 D->OperatorDelete = ReadDeclAs<FunctionDecl>(Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001358}
1359
Sebastian Redld527cc02010-08-18 23:56:48 +00001360void ASTDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001361 VisitCXXMethodDecl(D);
Argyrios Kyrtzidis91468322010-07-02 15:58:43 +00001362 D->IsExplicitSpecified = Record[Idx++];
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001363}
1364
Douglas Gregor15de72c2011-12-02 23:23:56 +00001365void ASTDeclReader::VisitImportDecl(ImportDecl *D) {
1366 VisitDecl(D);
1367 D->ImportedAndComplete.setPointer(readModule(Record, Idx));
1368 D->ImportedAndComplete.setInt(Record[Idx++]);
1369 SourceLocation *StoredLocs = reinterpret_cast<SourceLocation *>(D + 1);
1370 for (unsigned I = 0, N = Record.back(); I != N; ++I)
1371 StoredLocs[I] = ReadSourceLocation(Record, Idx);
Argyrios Kyrtzidisbebae7c2012-10-03 01:58:45 +00001372 ++Idx; // The number of stored source locations.
Douglas Gregor15de72c2011-12-02 23:23:56 +00001373}
1374
Sebastian Redld527cc02010-08-18 23:56:48 +00001375void ASTDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) {
Abramo Bagnara6206d532010-06-05 05:09:32 +00001376 VisitDecl(D);
Sebastian Redlc3632732010-10-05 15:59:54 +00001377 D->setColonLoc(ReadSourceLocation(Record, Idx));
Abramo Bagnara6206d532010-06-05 05:09:32 +00001378}
1379
Sebastian Redld527cc02010-08-18 23:56:48 +00001380void ASTDeclReader::VisitFriendDecl(FriendDecl *D) {
Argyrios Kyrtzidisc8f9af22010-07-05 10:38:01 +00001381 VisitDecl(D);
Enea Zaffanella8c840282013-01-31 09:54:08 +00001382 if (Record[Idx++]) // hasFriendDecl
Douglas Gregor409448c2011-07-21 22:35:25 +00001383 D->Friend = ReadDeclAs<NamedDecl>(Record, Idx);
Enea Zaffanella8c840282013-01-31 09:54:08 +00001384 else
1385 D->Friend = GetTypeSourceInfo(Record, Idx);
1386 for (unsigned i = 0; i != D->NumTPLists; ++i)
1387 D->getTPLists()[i] = Reader.ReadTemplateParameterList(F, Record, Idx);
Richard Smith868edfa2013-08-30 00:23:29 +00001388 D->NextFriend = ReadDeclID(Record, Idx);
John McCall6102ca12010-10-16 06:59:13 +00001389 D->UnsupportedFriend = (Record[Idx++] != 0);
Sebastian Redlc3632732010-10-05 15:59:54 +00001390 D->FriendLoc = ReadSourceLocation(Record, Idx);
Argyrios Kyrtzidis67643342010-06-29 22:47:00 +00001391}
1392
Sebastian Redld527cc02010-08-18 23:56:48 +00001393void ASTDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
Argyrios Kyrtzidis554e6aa2010-07-22 16:04:10 +00001394 VisitDecl(D);
1395 unsigned NumParams = Record[Idx++];
1396 D->NumParams = NumParams;
1397 D->Params = new TemplateParameterList*[NumParams];
1398 for (unsigned i = 0; i != NumParams; ++i)
Sebastian Redlc3632732010-10-05 15:59:54 +00001399 D->Params[i] = Reader.ReadTemplateParameterList(F, Record, Idx);
Argyrios Kyrtzidis554e6aa2010-07-22 16:04:10 +00001400 if (Record[Idx++]) // HasFriendDecl
Douglas Gregor409448c2011-07-21 22:35:25 +00001401 D->Friend = ReadDeclAs<NamedDecl>(Record, Idx);
Argyrios Kyrtzidis554e6aa2010-07-22 16:04:10 +00001402 else
Sebastian Redlc3632732010-10-05 15:59:54 +00001403 D->Friend = GetTypeSourceInfo(Record, Idx);
1404 D->FriendLoc = ReadSourceLocation(Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001405}
1406
Sebastian Redld527cc02010-08-18 23:56:48 +00001407void ASTDeclReader::VisitTemplateDecl(TemplateDecl *D) {
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001408 VisitNamedDecl(D);
1409
Douglas Gregor409448c2011-07-21 22:35:25 +00001410 NamedDecl *TemplatedDecl = ReadDeclAs<NamedDecl>(Record, Idx);
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001411 TemplateParameterList* TemplateParams
Sebastian Redlc3632732010-10-05 15:59:54 +00001412 = Reader.ReadTemplateParameterList(F, Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001413 D->init(TemplatedDecl, TemplateParams);
Richard Smith98f07232013-06-24 22:51:00 +00001414
1415 // FIXME: If this is a redeclaration of a template from another module, handle
1416 // inheritance of default template arguments.
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001417}
1418
Douglas Gregor0782ef22012-01-06 22:05:37 +00001419ASTDeclReader::RedeclarableResult
1420ASTDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001421 RedeclarableResult Redecl = VisitRedeclarable(D);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001422
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001423 // Make sure we've allocated the Common pointer first. We do this before
1424 // VisitTemplateDecl so that getCommonPtr() can be used during initialization.
1425 RedeclarableTemplateDecl *CanonD = D->getCanonicalDecl();
1426 if (!CanonD->Common) {
1427 CanonD->Common = CanonD->newCommon(Reader.getContext());
1428 Reader.PendingDefinitions.insert(CanonD);
1429 }
1430 D->Common = CanonD->Common;
Douglas Gregor0f753232011-12-22 01:48:48 +00001431
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001432 // If this is the first declaration of the template, fill in the information
1433 // for the 'common' pointer.
1434 if (ThisDeclID == Redecl.getFirstID()) {
Peter Collingbourne9eabeba2010-07-29 16:11:51 +00001435 if (RedeclarableTemplateDecl *RTD
Douglas Gregor0f753232011-12-22 01:48:48 +00001436 = ReadDeclAs<RedeclarableTemplateDecl>(Record, Idx)) {
Peter Collingbourne9eabeba2010-07-29 16:11:51 +00001437 assert(RTD->getKind() == D->getKind() &&
1438 "InstantiatedFromMemberTemplate kind mismatch");
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001439 D->setInstantiatedFromMemberTemplate(RTD);
Peter Collingbourne9eabeba2010-07-29 16:11:51 +00001440 if (Record[Idx++])
1441 D->setMemberSpecialization();
1442 }
1443 }
Axel Naumannb0e33d42012-10-01 09:18:00 +00001444
Argyrios Kyrtzidis6b541512010-09-08 19:31:22 +00001445 VisitTemplateDecl(D);
1446 D->IdentifierNamespace = Record[Idx++];
Axel Naumannb0e33d42012-10-01 09:18:00 +00001447
1448 mergeRedeclarable(D, Redecl);
1449
Richard Smith8bfc1e12013-10-13 23:50:45 +00001450 // If we merged the template with a prior declaration chain, merge the common
1451 // pointer.
1452 // FIXME: Actually merge here, don't just overwrite.
1453 D->Common = D->getCanonicalDecl()->Common;
1454
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001455 return Redecl;
Peter Collingbourne9eabeba2010-07-29 16:11:51 +00001456}
1457
Sebastian Redld527cc02010-08-18 23:56:48 +00001458void ASTDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001459 RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
Peter Collingbourne9eabeba2010-07-29 16:11:51 +00001460
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001461 if (ThisDeclID == Redecl.getFirstID()) {
Douglas Gregorc8e5cf82010-10-27 22:21:36 +00001462 // This ClassTemplateDecl owns a CommonPtr; read it to keep track of all of
1463 // the specializations.
Chris Lattner5f9e2722011-07-23 10:55:15 +00001464 SmallVector<serialization::DeclID, 2> SpecIDs;
Douglas Gregorc8e5cf82010-10-27 22:21:36 +00001465 SpecIDs.push_back(0);
1466
1467 // Specializations.
1468 unsigned Size = Record[Idx++];
1469 SpecIDs[0] += Size;
Douglas Gregor409448c2011-07-21 22:35:25 +00001470 for (unsigned I = 0; I != Size; ++I)
1471 SpecIDs.push_back(ReadDeclID(Record, Idx));
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001472
Douglas Gregorc8e5cf82010-10-27 22:21:36 +00001473 // Partial specializations.
1474 Size = Record[Idx++];
1475 SpecIDs[0] += Size;
Douglas Gregor409448c2011-07-21 22:35:25 +00001476 for (unsigned I = 0; I != Size; ++I)
1477 SpecIDs.push_back(ReadDeclID(Record, Idx));
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001478
Argyrios Kyrtzidis4f112342012-11-06 00:35:02 +00001479 ClassTemplateDecl::Common *CommonPtr = D->getCommonPtr();
Douglas Gregorc8e5cf82010-10-27 22:21:36 +00001480 if (SpecIDs[0]) {
1481 typedef serialization::DeclID DeclID;
1482
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001483 // FIXME: Append specializations!
Douglas Gregorc8e5cf82010-10-27 22:21:36 +00001484 CommonPtr->LazySpecializations
Douglas Gregor35942772011-09-09 21:34:22 +00001485 = new (Reader.getContext()) DeclID [SpecIDs.size()];
Douglas Gregorc8e5cf82010-10-27 22:21:36 +00001486 memcpy(CommonPtr->LazySpecializations, SpecIDs.data(),
1487 SpecIDs.size() * sizeof(DeclID));
1488 }
1489
Argyrios Kyrtzidis4f112342012-11-06 00:35:02 +00001490 CommonPtr->InjectedClassNameType = Reader.readType(F, Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001491 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001492}
1493
Larisse Voufo8d2a5ea2013-08-23 22:21:36 +00001494/// TODO: Unify with ClassTemplateDecl version?
1495/// May require unifying ClassTemplateDecl and
1496/// VarTemplateDecl beyond TemplateDecl...
Larisse Voufoef4579c2013-08-06 01:03:05 +00001497void ASTDeclReader::VisitVarTemplateDecl(VarTemplateDecl *D) {
1498 RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
1499
1500 if (ThisDeclID == Redecl.getFirstID()) {
Larisse Voufo4a919892013-08-14 03:09:19 +00001501 // This VarTemplateDecl owns a CommonPtr; read it to keep track of all of
Larisse Voufoef4579c2013-08-06 01:03:05 +00001502 // the specializations.
1503 SmallVector<serialization::DeclID, 2> SpecIDs;
1504 SpecIDs.push_back(0);
1505
1506 // Specializations.
1507 unsigned Size = Record[Idx++];
1508 SpecIDs[0] += Size;
1509 for (unsigned I = 0; I != Size; ++I)
1510 SpecIDs.push_back(ReadDeclID(Record, Idx));
1511
1512 // Partial specializations.
1513 Size = Record[Idx++];
1514 SpecIDs[0] += Size;
1515 for (unsigned I = 0; I != Size; ++I)
1516 SpecIDs.push_back(ReadDeclID(Record, Idx));
1517
1518 VarTemplateDecl::Common *CommonPtr = D->getCommonPtr();
1519 if (SpecIDs[0]) {
1520 typedef serialization::DeclID DeclID;
1521
1522 // FIXME: Append specializations!
1523 CommonPtr->LazySpecializations =
1524 new (Reader.getContext()) DeclID[SpecIDs.size()];
1525 memcpy(CommonPtr->LazySpecializations, SpecIDs.data(),
1526 SpecIDs.size() * sizeof(DeclID));
1527 }
1528 }
1529}
1530
Richard Smithe565bfa2013-05-23 01:49:11 +00001531ASTDeclReader::RedeclarableResult
1532ASTDeclReader::VisitClassTemplateSpecializationDeclImpl(
1533 ClassTemplateSpecializationDecl *D) {
1534 RedeclarableResult Redecl = VisitCXXRecordDeclImpl(D);
Argyrios Kyrtzidis586c7152010-09-13 11:45:32 +00001535
Douglas Gregor35942772011-09-09 21:34:22 +00001536 ASTContext &C = Reader.getContext();
Douglas Gregor409448c2011-07-21 22:35:25 +00001537 if (Decl *InstD = ReadDecl(Record, Idx)) {
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001538 if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) {
Argyrios Kyrtzidis586c7152010-09-13 11:45:32 +00001539 D->SpecializedTemplate = CTD;
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001540 } else {
Chris Lattner5f9e2722011-07-23 10:55:15 +00001541 SmallVector<TemplateArgument, 8> TemplArgs;
Sebastian Redlc3632732010-10-05 15:59:54 +00001542 Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
Argyrios Kyrtzidis586c7152010-09-13 11:45:32 +00001543 TemplateArgumentList *ArgList
Douglas Gregor910f8002010-11-07 23:05:16 +00001544 = TemplateArgumentList::CreateCopy(C, TemplArgs.data(),
1545 TemplArgs.size());
Argyrios Kyrtzidis586c7152010-09-13 11:45:32 +00001546 ClassTemplateSpecializationDecl::SpecializedPartialSpecialization *PS
1547 = new (C) ClassTemplateSpecializationDecl::
1548 SpecializedPartialSpecialization();
1549 PS->PartialSpecialization
1550 = cast<ClassTemplatePartialSpecializationDecl>(InstD);
1551 PS->TemplateArgs = ArgList;
1552 D->SpecializedTemplate = PS;
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001553 }
1554 }
1555
Chris Lattner5f9e2722011-07-23 10:55:15 +00001556 SmallVector<TemplateArgument, 8> TemplArgs;
Sebastian Redlc3632732010-10-05 15:59:54 +00001557 Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
Douglas Gregor910f8002010-11-07 23:05:16 +00001558 D->TemplateArgs = TemplateArgumentList::CreateCopy(C, TemplArgs.data(),
1559 TemplArgs.size());
Sebastian Redlc3632732010-10-05 15:59:54 +00001560 D->PointOfInstantiation = ReadSourceLocation(Record, Idx);
Argyrios Kyrtzidis586c7152010-09-13 11:45:32 +00001561 D->SpecializationKind = (TemplateSpecializationKind)Record[Idx++];
Axel Naumann7b3b95a2012-10-01 07:34:47 +00001562
1563 bool writtenAsCanonicalDecl = Record[Idx++];
1564 if (writtenAsCanonicalDecl) {
Douglas Gregor409448c2011-07-21 22:35:25 +00001565 ClassTemplateDecl *CanonPattern = ReadDeclAs<ClassTemplateDecl>(Record,Idx);
Axel Naumann7b3b95a2012-10-01 07:34:47 +00001566 if (D->isCanonicalDecl()) { // It's kept in the folding set.
Richard Smithb60fae52013-09-09 16:55:27 +00001567 // Set this as, or find, the canonical declaration for this specialization
1568 ClassTemplateSpecializationDecl *CanonSpec;
Richard Smith9db7f572013-06-25 01:25:15 +00001569 if (ClassTemplatePartialSpecializationDecl *Partial =
1570 dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
Richard Smithb60fae52013-09-09 16:55:27 +00001571 CanonSpec = CanonPattern->getCommonPtr()->PartialSpecializations
Richard Smith9db7f572013-06-25 01:25:15 +00001572 .GetOrInsertNode(Partial);
Axel Naumann7b3b95a2012-10-01 07:34:47 +00001573 } else {
Richard Smithb60fae52013-09-09 16:55:27 +00001574 CanonSpec =
1575 CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D);
1576 }
1577 // If there was already a canonical specialization, merge into it.
1578 if (CanonSpec != D) {
1579 mergeRedeclarable<TagDecl>(D, CanonSpec, Redecl);
1580
1581 // This declaration might be a definition. Merge with any existing
1582 // definition.
1583 if (D->DefinitionData) {
1584 if (!CanonSpec->DefinitionData) {
1585 CanonSpec->DefinitionData = D->DefinitionData;
1586 } else {
1587 // FIXME: Check DefinitionData for consistency with prior definition
1588 Reader.PendingDefinitions.erase(D);
1589 Reader.MergedDeclContexts.insert(
1590 std::make_pair(D, CanonSpec->DefinitionData->Definition));
1591 D->IsCompleteDefinition = false;
1592 D->DefinitionData = CanonSpec->DefinitionData;
1593 }
1594 }
Axel Naumann7b3b95a2012-10-01 07:34:47 +00001595 }
Argyrios Kyrtzidisecf966e2010-07-09 21:11:43 +00001596 }
1597 }
Richard Smithe565bfa2013-05-23 01:49:11 +00001598
Richard Smithb60fae52013-09-09 16:55:27 +00001599 // Explicit info.
1600 if (TypeSourceInfo *TyInfo = GetTypeSourceInfo(Record, Idx)) {
1601 ClassTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo
1602 = new (C) ClassTemplateSpecializationDecl::ExplicitSpecializationInfo;
1603 ExplicitInfo->TypeAsWritten = TyInfo;
1604 ExplicitInfo->ExternLoc = ReadSourceLocation(Record, Idx);
1605 ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation(Record, Idx);
1606 D->ExplicitInfo = ExplicitInfo;
1607 }
1608
Richard Smithe565bfa2013-05-23 01:49:11 +00001609 return Redecl;
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001610}
1611
Sebastian Redld527cc02010-08-18 23:56:48 +00001612void ASTDeclReader::VisitClassTemplatePartialSpecializationDecl(
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001613 ClassTemplatePartialSpecializationDecl *D) {
Richard Smithe565bfa2013-05-23 01:49:11 +00001614 RedeclarableResult Redecl = VisitClassTemplateSpecializationDeclImpl(D);
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001615
Sebastian Redlc3632732010-10-05 15:59:54 +00001616 D->TemplateParams = Reader.ReadTemplateParameterList(F, Record, Idx);
Enea Zaffanellac1cef082013-08-10 07:24:53 +00001617 D->ArgsAsWritten = Reader.ReadASTTemplateArgumentListInfo(F, Record, Idx);
Argyrios Kyrtzidis8fed4b42010-09-13 11:45:41 +00001618
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001619 // These are read/set from/to the first declaration.
Richard Smithe565bfa2013-05-23 01:49:11 +00001620 if (ThisDeclID == Redecl.getFirstID()) {
Argyrios Kyrtzidis8fed4b42010-09-13 11:45:41 +00001621 D->InstantiatedFromMember.setPointer(
Douglas Gregor409448c2011-07-21 22:35:25 +00001622 ReadDeclAs<ClassTemplatePartialSpecializationDecl>(Record, Idx));
Argyrios Kyrtzidis8fed4b42010-09-13 11:45:41 +00001623 D->InstantiatedFromMember.setInt(Record[Idx++]);
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00001624 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001625}
1626
Sebastian Redl14c36332011-08-31 13:59:56 +00001627void ASTDeclReader::VisitClassScopeFunctionSpecializationDecl(
1628 ClassScopeFunctionSpecializationDecl *D) {
Francois Pichetbc845322011-08-17 01:06:54 +00001629 VisitDecl(D);
1630 D->Specialization = ReadDeclAs<CXXMethodDecl>(Record, Idx);
1631}
1632
Sebastian Redld527cc02010-08-18 23:56:48 +00001633void ASTDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001634 RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +00001635
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00001636 if (ThisDeclID == Redecl.getFirstID()) {
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +00001637 // This FunctionTemplateDecl owns a CommonPtr; read it.
1638
Richard Smith6982bf42013-06-28 04:37:53 +00001639 // Read the function specialization declaration IDs. The specializations
1640 // themselves will be loaded if they're needed.
1641 if (unsigned NumSpecs = Record[Idx++]) {
1642 // FIXME: Append specializations!
1643 FunctionTemplateDecl::Common *CommonPtr = D->getCommonPtr();
1644 CommonPtr->LazySpecializations = new (Reader.getContext())
1645 serialization::DeclID[NumSpecs + 1];
1646 CommonPtr->LazySpecializations[0] = NumSpecs;
1647 for (unsigned I = 0; I != NumSpecs; ++I)
1648 CommonPtr->LazySpecializations[I + 1] = ReadDeclID(Record, Idx);
1649 }
Argyrios Kyrtzidisf511ba62010-06-22 09:55:07 +00001650 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001651}
1652
Larisse Voufo8d2a5ea2013-08-23 22:21:36 +00001653/// TODO: Unify with ClassTemplateSpecializationDecl version?
1654/// May require unifying ClassTemplate(Partial)SpecializationDecl and
1655/// VarTemplate(Partial)SpecializationDecl with a new data
1656/// structure Template(Partial)SpecializationDecl, and
1657/// using Template(Partial)SpecializationDecl as input type.
Larisse Voufoef4579c2013-08-06 01:03:05 +00001658ASTDeclReader::RedeclarableResult
1659ASTDeclReader::VisitVarTemplateSpecializationDeclImpl(
1660 VarTemplateSpecializationDecl *D) {
1661 RedeclarableResult Redecl = VisitVarDeclImpl(D);
1662
1663 ASTContext &C = Reader.getContext();
1664 if (Decl *InstD = ReadDecl(Record, Idx)) {
1665 if (VarTemplateDecl *VTD = dyn_cast<VarTemplateDecl>(InstD)) {
1666 D->SpecializedTemplate = VTD;
1667 } else {
1668 SmallVector<TemplateArgument, 8> TemplArgs;
1669 Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
1670 TemplateArgumentList *ArgList = TemplateArgumentList::CreateCopy(
1671 C, TemplArgs.data(), TemplArgs.size());
1672 VarTemplateSpecializationDecl::SpecializedPartialSpecialization *PS =
1673 new (C)
1674 VarTemplateSpecializationDecl::SpecializedPartialSpecialization();
1675 PS->PartialSpecialization =
1676 cast<VarTemplatePartialSpecializationDecl>(InstD);
1677 PS->TemplateArgs = ArgList;
1678 D->SpecializedTemplate = PS;
1679 }
1680 }
1681
1682 // Explicit info.
1683 if (TypeSourceInfo *TyInfo = GetTypeSourceInfo(Record, Idx)) {
1684 VarTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo =
1685 new (C) VarTemplateSpecializationDecl::ExplicitSpecializationInfo;
1686 ExplicitInfo->TypeAsWritten = TyInfo;
1687 ExplicitInfo->ExternLoc = ReadSourceLocation(Record, Idx);
1688 ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation(Record, Idx);
1689 D->ExplicitInfo = ExplicitInfo;
1690 }
1691
1692 SmallVector<TemplateArgument, 8> TemplArgs;
1693 Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
1694 D->TemplateArgs =
1695 TemplateArgumentList::CreateCopy(C, TemplArgs.data(), TemplArgs.size());
1696 D->PointOfInstantiation = ReadSourceLocation(Record, Idx);
1697 D->SpecializationKind = (TemplateSpecializationKind)Record[Idx++];
1698
1699 bool writtenAsCanonicalDecl = Record[Idx++];
1700 if (writtenAsCanonicalDecl) {
1701 VarTemplateDecl *CanonPattern = ReadDeclAs<VarTemplateDecl>(Record, Idx);
1702 if (D->isCanonicalDecl()) { // It's kept in the folding set.
1703 if (VarTemplatePartialSpecializationDecl *Partial =
1704 dyn_cast<VarTemplatePartialSpecializationDecl>(D)) {
Larisse Voufoef4579c2013-08-06 01:03:05 +00001705 CanonPattern->getCommonPtr()->PartialSpecializations
1706 .GetOrInsertNode(Partial);
1707 } else {
1708 CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D);
1709 }
1710 }
1711 }
1712
1713 return Redecl;
1714}
1715
Larisse Voufo8d2a5ea2013-08-23 22:21:36 +00001716/// TODO: Unify with ClassTemplatePartialSpecializationDecl version?
1717/// May require unifying ClassTemplate(Partial)SpecializationDecl and
1718/// VarTemplate(Partial)SpecializationDecl with a new data
1719/// structure Template(Partial)SpecializationDecl, and
1720/// using Template(Partial)SpecializationDecl as input type.
Larisse Voufoef4579c2013-08-06 01:03:05 +00001721void ASTDeclReader::VisitVarTemplatePartialSpecializationDecl(
1722 VarTemplatePartialSpecializationDecl *D) {
1723 RedeclarableResult Redecl = VisitVarTemplateSpecializationDeclImpl(D);
1724
Larisse Voufoef4579c2013-08-06 01:03:05 +00001725 D->TemplateParams = Reader.ReadTemplateParameterList(F, Record, Idx);
Enea Zaffanellac1cef082013-08-10 07:24:53 +00001726 D->ArgsAsWritten = Reader.ReadASTTemplateArgumentListInfo(F, Record, Idx);
Larisse Voufoef4579c2013-08-06 01:03:05 +00001727
1728 // These are read/set from/to the first declaration.
1729 if (ThisDeclID == Redecl.getFirstID()) {
1730 D->InstantiatedFromMember.setPointer(
1731 ReadDeclAs<VarTemplatePartialSpecializationDecl>(Record, Idx));
1732 D->InstantiatedFromMember.setInt(Record[Idx++]);
1733 }
1734}
1735
Sebastian Redld527cc02010-08-18 23:56:48 +00001736void ASTDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001737 VisitTypeDecl(D);
1738
1739 D->setDeclaredWithTypename(Record[Idx++]);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001740
1741 bool Inherited = Record[Idx++];
Sebastian Redlc3632732010-10-05 15:59:54 +00001742 TypeSourceInfo *DefArg = GetTypeSourceInfo(Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00001743 D->setDefaultArgument(DefArg, Inherited);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001744}
1745
Sebastian Redld527cc02010-08-18 23:56:48 +00001746void ASTDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
John McCall76a40212011-02-09 01:13:10 +00001747 VisitDeclaratorDecl(D);
Argyrios Kyrtzidisb24e1992010-06-25 16:25:09 +00001748 // TemplateParmPosition.
1749 D->setDepth(Record[Idx++]);
1750 D->setPosition(Record[Idx++]);
Douglas Gregor6952f1e2011-01-19 20:10:05 +00001751 if (D->isExpandedParameterPack()) {
1752 void **Data = reinterpret_cast<void **>(D + 1);
1753 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
Douglas Gregor393f2492011-07-22 00:38:23 +00001754 Data[2*I] = Reader.readType(F, Record, Idx).getAsOpaquePtr();
Douglas Gregor6952f1e2011-01-19 20:10:05 +00001755 Data[2*I + 1] = GetTypeSourceInfo(Record, Idx);
1756 }
1757 } else {
1758 // Rest of NonTypeTemplateParmDecl.
1759 D->ParameterPack = Record[Idx++];
1760 if (Record[Idx++]) {
1761 Expr *DefArg = Reader.ReadExpr(F);
1762 bool Inherited = Record[Idx++];
1763 D->setDefaultArgument(DefArg, Inherited);
1764 }
1765 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001766}
1767
Sebastian Redld527cc02010-08-18 23:56:48 +00001768void ASTDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
Argyrios Kyrtzidisbfcc92c2010-07-08 17:12:57 +00001769 VisitTemplateDecl(D);
1770 // TemplateParmPosition.
1771 D->setDepth(Record[Idx++]);
1772 D->setPosition(Record[Idx++]);
Richard Smith6964b3f2012-09-07 02:06:42 +00001773 if (D->isExpandedParameterPack()) {
1774 void **Data = reinterpret_cast<void **>(D + 1);
1775 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
1776 I != N; ++I)
1777 Data[I] = Reader.ReadTemplateParameterList(F, Record, Idx);
1778 } else {
1779 // Rest of TemplateTemplateParmDecl.
1780 TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(F, Record, Idx);
1781 bool IsInherited = Record[Idx++];
1782 D->setDefaultArgument(Arg, IsInherited);
1783 D->ParameterPack = Record[Idx++];
1784 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001785}
1786
Richard Smith3e4c6c42011-05-05 21:57:07 +00001787void ASTDeclReader::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1788 VisitRedeclarableTemplateDecl(D);
1789}
1790
Sebastian Redld527cc02010-08-18 23:56:48 +00001791void ASTDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
Argyrios Kyrtzidis0d396892010-07-22 17:28:12 +00001792 VisitDecl(D);
Richard Smithe3f470a2012-07-11 22:37:56 +00001793 D->AssertExprAndFailed.setPointer(Reader.ReadExpr(F));
1794 D->AssertExprAndFailed.setInt(Record[Idx++]);
Sebastian Redlc3632732010-10-05 15:59:54 +00001795 D->Message = cast<StringLiteral>(Reader.ReadExpr(F));
Abramo Bagnaraa2026c92011-03-08 16:41:52 +00001796 D->RParenLoc = ReadSourceLocation(Record, Idx);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00001797}
1798
Michael Han684aa732013-02-22 17:15:32 +00001799void ASTDeclReader::VisitEmptyDecl(EmptyDecl *D) {
1800 VisitDecl(D);
1801}
1802
Mike Stump1eb44332009-09-09 15:08:12 +00001803std::pair<uint64_t, uint64_t>
Sebastian Redld527cc02010-08-18 23:56:48 +00001804ASTDeclReader::VisitDeclContext(DeclContext *DC) {
Chris Lattner698f9252009-04-27 05:27:42 +00001805 uint64_t LexicalOffset = Record[Idx++];
1806 uint64_t VisibleOffset = Record[Idx++];
1807 return std::make_pair(LexicalOffset, VisibleOffset);
1808}
1809
Argyrios Kyrtzidisa8650052010-08-03 17:30:10 +00001810template <typename T>
Douglas Gregor0f753232011-12-22 01:48:48 +00001811ASTDeclReader::RedeclarableResult
1812ASTDeclReader::VisitRedeclarable(Redeclarable<T> *D) {
Douglas Gregor2171bf12012-01-15 16:58:34 +00001813 DeclID FirstDeclID = ReadDeclID(Record, Idx);
Douglas Gregora1be2782011-12-17 23:38:30 +00001814
Douglas Gregor2171bf12012-01-15 16:58:34 +00001815 // 0 indicates that this declaration was the only declaration of its entity,
1816 // and is used for space optimization.
1817 if (FirstDeclID == 0)
Douglas Gregorf63b0a52011-12-19 18:19:24 +00001818 FirstDeclID = ThisDeclID;
Douglas Gregor2171bf12012-01-15 16:58:34 +00001819
1820 T *FirstDecl = cast_or_null<T>(Reader.GetDecl(FirstDeclID));
1821 if (FirstDecl != D) {
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00001822 // We delay loading of the redeclaration chain to avoid deeply nested calls.
1823 // We temporarily set the first (canonical) declaration as the previous one
1824 // which is the one that matters and mark the real previous DeclID to be
1825 // loaded & attached later on.
David Blaikiedec17762012-05-28 19:38:42 +00001826 D->RedeclLink = Redeclarable<T>::PreviousDeclLink(FirstDecl);
Douglas Gregor2171bf12012-01-15 16:58:34 +00001827 }
1828
1829 // Note that this declaration has been deserialized.
1830 Reader.RedeclsDeserialized.insert(static_cast<T *>(D));
1831
1832 // The result structure takes care to note that we need to load the
Douglas Gregor0f753232011-12-22 01:48:48 +00001833 // other declaration chains for this ID.
Douglas Gregor9cfdc032013-01-21 16:16:40 +00001834 return RedeclarableResult(Reader, FirstDeclID,
1835 static_cast<T *>(D)->getKind());
Argyrios Kyrtzidisa8650052010-08-03 17:30:10 +00001836}
1837
Douglas Gregordea22cc2012-01-03 17:27:13 +00001838/// \brief Attempts to merge the given declaration (D) with another declaration
1839/// of the same entity.
1840template<typename T>
Richard Smithb60fae52013-09-09 16:55:27 +00001841void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *D,
Douglas Gregordea22cc2012-01-03 17:27:13 +00001842 RedeclarableResult &Redecl) {
Douglas Gregor674949f2012-01-03 17:31:38 +00001843 // If modules are not available, there is no reason to perform this merge.
David Blaikie4e4d0842012-03-11 07:00:24 +00001844 if (!Reader.getContext().getLangOpts().Modules)
Douglas Gregor674949f2012-01-03 17:31:38 +00001845 return;
Richard Smithb60fae52013-09-09 16:55:27 +00001846
1847 if (FindExistingResult ExistingRes = findExisting(static_cast<T*>(D)))
1848 if (T *Existing = ExistingRes)
1849 mergeRedeclarable(D, Existing, Redecl);
1850}
1851
1852/// \brief Attempts to merge the given declaration (D) with another declaration
1853/// of the same entity.
1854template<typename T>
1855void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *D, T *Existing,
1856 RedeclarableResult &Redecl) {
1857 T *ExistingCanon = Existing->getCanonicalDecl();
1858 T *DCanon = static_cast<T*>(D)->getCanonicalDecl();
1859 if (ExistingCanon != DCanon) {
1860 // Have our redeclaration link point back at the canonical declaration
1861 // of the existing declaration, so that this declaration has the
1862 // appropriate canonical declaration.
1863 D->RedeclLink = Redeclarable<T>::PreviousDeclLink(ExistingCanon);
1864
1865 // When we merge a namespace, update its pointer to the first namespace.
1866 if (NamespaceDecl *Namespace
1867 = dyn_cast<NamespaceDecl>(static_cast<T*>(D))) {
1868 Namespace->AnonOrFirstNamespaceAndInline.setPointer(
1869 static_cast<NamespaceDecl *>(static_cast<void*>(ExistingCanon)));
1870 }
1871
1872 // Don't introduce DCanon into the set of pending declaration chains.
1873 Redecl.suppress();
1874
1875 // Introduce ExistingCanon into the set of pending declaration chains,
1876 // if in fact it came from a module file.
1877 if (ExistingCanon->isFromASTFile()) {
1878 GlobalDeclID ExistingCanonID = ExistingCanon->getGlobalID();
1879 assert(ExistingCanonID && "Unrecorded canonical declaration ID?");
1880 if (Reader.PendingDeclChainsKnown.insert(ExistingCanonID))
1881 Reader.PendingDeclChains.push_back(ExistingCanonID);
1882 }
1883
1884 // If this declaration was the canonical declaration, make a note of
1885 // that. We accept the linear algorithm here because the number of
1886 // unique canonical declarations of an entity should always be tiny.
1887 if (DCanon == static_cast<T*>(D)) {
1888 SmallVectorImpl<DeclID> &Merged = Reader.MergedDecls[ExistingCanon];
1889 if (std::find(Merged.begin(), Merged.end(), Redecl.getFirstID())
1890 == Merged.end())
1891 Merged.push_back(Redecl.getFirstID());
1892
1893 // If ExistingCanon did not come from a module file, introduce the
1894 // first declaration that *does* come from a module file to the
1895 // set of pending declaration chains, so that we merge this
1896 // declaration.
1897 if (!ExistingCanon->isFromASTFile() &&
1898 Reader.PendingDeclChainsKnown.insert(Redecl.getFirstID()))
1899 Reader.PendingDeclChains.push_back(Merged[0]);
Douglas Gregordea22cc2012-01-03 17:27:13 +00001900 }
1901 }
1902}
1903
Richard Smith4ed01222013-10-07 08:02:11 +00001904/// \brief Attempts to merge the given declaration (D) with another declaration
1905/// of the same entity, for the case where the entity is not actually
1906/// redeclarable. This happens, for instance, when merging the fields of
1907/// identical class definitions from two different modules.
1908template<typename T>
1909void ASTDeclReader::mergeMergeable(Mergeable<T> *D) {
1910 // If modules are not available, there is no reason to perform this merge.
1911 if (!Reader.getContext().getLangOpts().Modules)
1912 return;
1913
Richard Smithd692a842013-10-15 22:02:41 +00001914 // ODR-based merging is only performed in C++. In C, identically-named things
1915 // in different translation units are not redeclarations (but may still have
1916 // compatible types).
1917 if (!Reader.getContext().getLangOpts().CPlusPlus)
1918 return;
1919
Richard Smith4ed01222013-10-07 08:02:11 +00001920 if (FindExistingResult ExistingRes = findExisting(static_cast<T*>(D)))
1921 if (T *Existing = ExistingRes)
1922 Reader.Context.setPrimaryMergedDecl(static_cast<T*>(D),
1923 Existing->getCanonicalDecl());
1924}
1925
Alexey Bataevc6400582013-03-22 06:34:35 +00001926void ASTDeclReader::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
1927 VisitDecl(D);
1928 unsigned NumVars = D->varlist_size();
Alexey Bataev6af701f2013-05-13 04:18:18 +00001929 SmallVector<Expr *, 16> Vars;
Alexey Bataevc6400582013-03-22 06:34:35 +00001930 Vars.reserve(NumVars);
1931 for (unsigned i = 0; i != NumVars; ++i) {
Alexey Bataev6af701f2013-05-13 04:18:18 +00001932 Vars.push_back(Reader.ReadExpr(F));
Alexey Bataevc6400582013-03-22 06:34:35 +00001933 }
1934 D->setVars(Vars);
1935}
1936
Chris Lattner698f9252009-04-27 05:27:42 +00001937//===----------------------------------------------------------------------===//
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001938// Attribute Reading
Chris Lattner698f9252009-04-27 05:27:42 +00001939//===----------------------------------------------------------------------===//
1940
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001941/// \brief Reads attributes from the current stream position.
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001942void ASTReader::ReadAttributes(ModuleFile &F, AttrVec &Attrs,
Argyrios Kyrtzidis4eb9fc02010-10-18 19:20:11 +00001943 const RecordData &Record, unsigned &Idx) {
1944 for (unsigned i = 0, e = Record[Idx++]; i != e; ++i) {
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001945 Attr *New = 0;
Sean Hunt387475d2010-06-16 23:43:53 +00001946 attr::Kind Kind = (attr::Kind)Record[Idx++];
Argyrios Kyrtzidis768d6ca2011-09-13 16:05:58 +00001947 SourceRange Range = ReadSourceRange(F, Record, Idx);
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001948
Sean Huntcf807c42010-08-18 23:23:40 +00001949#include "clang/Serialization/AttrPCHRead.inc"
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001950
1951 assert(New && "Unable to decode attribute?");
Sean Huntcf807c42010-08-18 23:23:40 +00001952 Attrs.push_back(New);
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001953 }
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001954}
1955
1956//===----------------------------------------------------------------------===//
Sebastian Redlc43b54c2010-08-18 23:56:43 +00001957// ASTReader Implementation
Chris Lattner4e3fcc82009-04-27 06:01:06 +00001958//===----------------------------------------------------------------------===//
Chris Lattner698f9252009-04-27 05:27:42 +00001959
1960/// \brief Note that we have loaded the declaration with the given
1961/// Index.
Mike Stump1eb44332009-09-09 15:08:12 +00001962///
Chris Lattner698f9252009-04-27 05:27:42 +00001963/// This routine notes that this declaration has already been loaded,
1964/// so that future GetDecl calls will return this declaration rather
1965/// than trying to load a new declaration.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00001966inline void ASTReader::LoadedDecl(unsigned Index, Decl *D) {
Chris Lattner698f9252009-04-27 05:27:42 +00001967 assert(!DeclsLoaded[Index] && "Decl loaded twice?");
1968 DeclsLoaded[Index] = D;
1969}
1970
1971
1972/// \brief Determine whether the consumer will be interested in seeing
1973/// this declaration (via HandleTopLevelDecl).
1974///
1975/// This routine should return true for anything that might affect
1976/// code generation, e.g., inline function definitions, Objective-C
1977/// declarations with metadata, etc.
Douglas Gregor5456b0fe2012-10-09 17:21:28 +00001978static bool isConsumerInterestedIn(Decl *D, bool HasBody) {
Argyrios Kyrtzidis144b38a2011-09-13 21:35:00 +00001979 // An ObjCMethodDecl is never considered as "interesting" because its
1980 // implementation container always is.
1981
Douglas Gregor94da1582011-09-10 00:22:34 +00001982 if (isa<FileScopeAsmDecl>(D) ||
1983 isa<ObjCProtocolDecl>(D) ||
1984 isa<ObjCImplDecl>(D))
Daniel Dunbar04a0b502009-09-17 03:06:44 +00001985 return true;
Chris Lattner698f9252009-04-27 05:27:42 +00001986 if (VarDecl *Var = dyn_cast<VarDecl>(D))
Argyrios Kyrtzidis3f954772010-08-05 09:47:59 +00001987 return Var->isFileVarDecl() &&
1988 Var->isThisDeclarationADefinition() == VarDecl::Definition;
Chris Lattner698f9252009-04-27 05:27:42 +00001989 if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D))
Douglas Gregor5456b0fe2012-10-09 17:21:28 +00001990 return Func->doesThisDeclarationHaveABody() || HasBody;
Douglas Gregor94da1582011-09-10 00:22:34 +00001991
1992 return false;
Chris Lattner698f9252009-04-27 05:27:42 +00001993}
1994
Douglas Gregor96e973f2011-07-20 00:27:43 +00001995/// \brief Get the correct cursor and offset for loading a declaration.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00001996ASTReader::RecordLocation
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +00001997ASTReader::DeclCursorForID(DeclID ID, unsigned &RawLocation) {
Sebastian Redl0b17c612010-08-13 00:28:03 +00001998 // See if there's an override.
1999 DeclReplacementMap::iterator It = ReplacedDecls.find(ID);
Argyrios Kyrtzidisef23b602011-10-31 07:20:15 +00002000 if (It != ReplacedDecls.end()) {
2001 RawLocation = It->second.RawLoc;
2002 return RecordLocation(It->second.Mod, It->second.Offset);
2003 }
Sebastian Redl0b17c612010-08-13 00:28:03 +00002004
Douglas Gregor96e973f2011-07-20 00:27:43 +00002005 GlobalDeclMapType::iterator I = GlobalDeclMap.find(ID);
2006 assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002007 ModuleFile *M = I->second;
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +00002008 const DeclOffset &
2009 DOffs = M->DeclOffsets[ID - M->BaseDeclID - NUM_PREDEF_DECL_IDS];
2010 RawLocation = DOffs.Loc;
2011 return RecordLocation(M, DOffs.BitOffset);
Sebastian Redlcb526aa2010-07-20 22:46:15 +00002012}
2013
Douglas Gregor8f1231b2011-07-22 06:10:01 +00002014ASTReader::RecordLocation ASTReader::getLocalBitOffset(uint64_t GlobalOffset) {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002015 ContinuousRangeMap<uint64_t, ModuleFile*, 4>::iterator I
Douglas Gregor8f1231b2011-07-22 06:10:01 +00002016 = GlobalBitOffsetsMap.find(GlobalOffset);
2017
2018 assert(I != GlobalBitOffsetsMap.end() && "Corrupted global bit offsets map");
2019 return RecordLocation(I->second, GlobalOffset - I->second->GlobalBitOffset);
2020}
2021
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002022uint64_t ASTReader::getGlobalBitOffset(ModuleFile &M, uint32_t LocalOffset) {
Douglas Gregore92b8a12011-08-04 00:01:48 +00002023 return LocalOffset + M.GlobalBitOffset;
2024}
2025
Richard Smith98f07232013-06-24 22:51:00 +00002026static bool isSameTemplateParameterList(const TemplateParameterList *X,
2027 const TemplateParameterList *Y);
2028
2029/// \brief Determine whether two template parameters are similar enough
2030/// that they may be used in declarations of the same template.
2031static bool isSameTemplateParameter(const NamedDecl *X,
2032 const NamedDecl *Y) {
2033 if (X->getKind() != Y->getKind())
2034 return false;
2035
2036 if (const TemplateTypeParmDecl *TX = dyn_cast<TemplateTypeParmDecl>(X)) {
2037 const TemplateTypeParmDecl *TY = cast<TemplateTypeParmDecl>(Y);
2038 return TX->isParameterPack() == TY->isParameterPack();
2039 }
2040
2041 if (const NonTypeTemplateParmDecl *TX = dyn_cast<NonTypeTemplateParmDecl>(X)) {
2042 const NonTypeTemplateParmDecl *TY = cast<NonTypeTemplateParmDecl>(Y);
2043 return TX->isParameterPack() == TY->isParameterPack() &&
2044 TX->getASTContext().hasSameType(TX->getType(), TY->getType());
2045 }
2046
2047 const TemplateTemplateParmDecl *TX = cast<TemplateTemplateParmDecl>(X);
2048 const TemplateTemplateParmDecl *TY = cast<TemplateTemplateParmDecl>(Y);
2049 return TX->isParameterPack() == TY->isParameterPack() &&
2050 isSameTemplateParameterList(TX->getTemplateParameters(),
2051 TY->getTemplateParameters());
2052}
2053
2054/// \brief Determine whether two template parameter lists are similar enough
2055/// that they may be used in declarations of the same template.
2056static bool isSameTemplateParameterList(const TemplateParameterList *X,
2057 const TemplateParameterList *Y) {
2058 if (X->size() != Y->size())
2059 return false;
2060
2061 for (unsigned I = 0, N = X->size(); I != N; ++I)
2062 if (!isSameTemplateParameter(X->getParam(I), Y->getParam(I)))
2063 return false;
2064
2065 return true;
2066}
2067
Douglas Gregor0f753232011-12-22 01:48:48 +00002068/// \brief Determine whether the two declarations refer to the same entity.
2069static bool isSameEntity(NamedDecl *X, NamedDecl *Y) {
2070 assert(X->getDeclName() == Y->getDeclName() && "Declaration name mismatch!");
2071
2072 if (X == Y)
2073 return true;
2074
Douglas Gregor0f753232011-12-22 01:48:48 +00002075 // Must be in the same context.
2076 if (!X->getDeclContext()->getRedeclContext()->Equals(
2077 Y->getDeclContext()->getRedeclContext()))
2078 return false;
Douglas Gregorda795b42012-01-04 16:44:10 +00002079
2080 // Two typedefs refer to the same entity if they have the same underlying
2081 // type.
2082 if (TypedefNameDecl *TypedefX = dyn_cast<TypedefNameDecl>(X))
2083 if (TypedefNameDecl *TypedefY = dyn_cast<TypedefNameDecl>(Y))
2084 return X->getASTContext().hasSameType(TypedefX->getUnderlyingType(),
2085 TypedefY->getUnderlyingType());
Douglas Gregor0f753232011-12-22 01:48:48 +00002086
Douglas Gregorda795b42012-01-04 16:44:10 +00002087 // Must have the same kind.
2088 if (X->getKind() != Y->getKind())
2089 return false;
2090
Douglas Gregordba93612012-01-01 21:47:52 +00002091 // Objective-C classes and protocols with the same name always match.
2092 if (isa<ObjCInterfaceDecl>(X) || isa<ObjCProtocolDecl>(X))
Douglas Gregor0f753232011-12-22 01:48:48 +00002093 return true;
Richard Smithe565bfa2013-05-23 01:49:11 +00002094
2095 if (isa<ClassTemplateSpecializationDecl>(X)) {
Richard Smithb60fae52013-09-09 16:55:27 +00002096 // No need to handle these here: we merge them when adding them to the
2097 // template.
Richard Smithe565bfa2013-05-23 01:49:11 +00002098 return false;
2099 }
Richard Smithb60fae52013-09-09 16:55:27 +00002100
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +00002101 // Compatible tags match.
Joao Matos17d35c32012-08-31 22:18:20 +00002102 if (TagDecl *TagX = dyn_cast<TagDecl>(X)) {
2103 TagDecl *TagY = cast<TagDecl>(Y);
2104 return (TagX->getTagKind() == TagY->getTagKind()) ||
2105 ((TagX->getTagKind() == TTK_Struct || TagX->getTagKind() == TTK_Class ||
2106 TagX->getTagKind() == TTK_Interface) &&
2107 (TagY->getTagKind() == TTK_Struct || TagY->getTagKind() == TTK_Class ||
2108 TagY->getTagKind() == TTK_Interface));
2109 }
Richard Smithacd954b2013-06-24 04:45:28 +00002110
Joao Matos17d35c32012-08-31 22:18:20 +00002111 // Functions with the same type and linkage match.
Richard Smithacd954b2013-06-24 04:45:28 +00002112 // FIXME: This needs to cope with function template specializations,
2113 // merging of prototyped/non-prototyped functions, etc.
Douglas Gregor70762812012-01-04 17:13:46 +00002114 if (FunctionDecl *FuncX = dyn_cast<FunctionDecl>(X)) {
2115 FunctionDecl *FuncY = cast<FunctionDecl>(Y);
Rafael Espindola181e3ec2013-05-13 00:12:11 +00002116 return (FuncX->getLinkageInternal() == FuncY->getLinkageInternal()) &&
Douglas Gregor70762812012-01-04 17:13:46 +00002117 FuncX->getASTContext().hasSameType(FuncX->getType(), FuncY->getType());
2118 }
Axel Naumannb0e33d42012-10-01 09:18:00 +00002119
Douglas Gregor4791fa22012-01-04 17:21:36 +00002120 // Variables with the same type and linkage match.
2121 if (VarDecl *VarX = dyn_cast<VarDecl>(X)) {
2122 VarDecl *VarY = cast<VarDecl>(Y);
Rafael Espindola181e3ec2013-05-13 00:12:11 +00002123 return (VarX->getLinkageInternal() == VarY->getLinkageInternal()) &&
Douglas Gregor4791fa22012-01-04 17:21:36 +00002124 VarX->getASTContext().hasSameType(VarX->getType(), VarY->getType());
2125 }
Richard Smithacd954b2013-06-24 04:45:28 +00002126
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00002127 // Namespaces with the same name and inlinedness match.
2128 if (NamespaceDecl *NamespaceX = dyn_cast<NamespaceDecl>(X)) {
2129 NamespaceDecl *NamespaceY = cast<NamespaceDecl>(Y);
2130 return NamespaceX->isInline() == NamespaceY->isInline();
2131 }
Axel Naumannb0e33d42012-10-01 09:18:00 +00002132
Richard Smithacd954b2013-06-24 04:45:28 +00002133 // Identical template names and kinds match if their template parameter lists
2134 // and patterns match.
2135 if (TemplateDecl *TemplateX = dyn_cast<TemplateDecl>(X)) {
Richard Smith98f07232013-06-24 22:51:00 +00002136 TemplateDecl *TemplateY = cast<TemplateDecl>(Y);
Richard Smithacd954b2013-06-24 04:45:28 +00002137 return isSameEntity(TemplateX->getTemplatedDecl(),
Richard Smith98f07232013-06-24 22:51:00 +00002138 TemplateY->getTemplatedDecl()) &&
2139 isSameTemplateParameterList(TemplateX->getTemplateParameters(),
2140 TemplateY->getTemplateParameters());
Richard Smithacd954b2013-06-24 04:45:28 +00002141 }
Axel Naumannb0e33d42012-10-01 09:18:00 +00002142
Richard Smith4ed01222013-10-07 08:02:11 +00002143 // Fields with the same name and the same type match.
2144 if (FieldDecl *FDX = dyn_cast<FieldDecl>(X)) {
2145 FieldDecl *FDY = cast<FieldDecl>(Y);
2146 // FIXME: Diagnose if the types don't match. More generally, diagnose if we
2147 // get a declaration in a class definition that isn't in the canonical class
2148 // definition.
Richard Smithd692a842013-10-15 22:02:41 +00002149 // FIXME: Also check the bitwidth is odr-equivalent, if any.
Richard Smith4ed01222013-10-07 08:02:11 +00002150 return X->getASTContext().hasSameType(FDX->getType(), FDY->getType());
2151 }
2152
Richard Smithd692a842013-10-15 22:02:41 +00002153 // Enumerators with the same name match.
2154 if (isa<EnumConstantDecl>(X))
2155 // FIXME: Also check the value is odr-equivalent.
2156 return true;
2157
Richard Smithf06a28932013-10-23 02:17:46 +00002158 // Using shadow declarations with the same target match.
2159 if (UsingShadowDecl *USX = dyn_cast<UsingShadowDecl>(X)) {
2160 UsingShadowDecl *USY = cast<UsingShadowDecl>(Y);
2161 return USX->getTargetDecl() == USY->getTargetDecl();
2162 }
2163
Douglas Gregor0f753232011-12-22 01:48:48 +00002164 // FIXME: Many other cases to implement.
2165 return false;
2166}
2167
Richard Smithb60fae52013-09-09 16:55:27 +00002168/// Find the context in which we should search for previous declarations when
2169/// looking for declarations to merge.
2170static DeclContext *getPrimaryContextForMerging(DeclContext *DC) {
2171 if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(DC))
2172 return ND->getOriginalNamespace();
2173
2174 if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(DC))
2175 return RD->getDefinition();
2176
Richard Smithd692a842013-10-15 22:02:41 +00002177 if (EnumDecl *ED = dyn_cast<EnumDecl>(DC))
2178 return ED->getASTContext().getLangOpts().CPlusPlus? ED->getDefinition() : 0;
2179
Richard Smithb60fae52013-09-09 16:55:27 +00002180 return 0;
2181}
2182
Douglas Gregor0f753232011-12-22 01:48:48 +00002183ASTDeclReader::FindExistingResult::~FindExistingResult() {
Douglas Gregor0fdc09f2012-01-09 17:38:47 +00002184 if (!AddResult || Existing)
Douglas Gregor0f753232011-12-22 01:48:48 +00002185 return;
Richard Smithe7bae152013-07-13 02:00:19 +00002186
2187 DeclContext *DC = New->getDeclContext()->getRedeclContext();
2188 if (DC->isTranslationUnit() && Reader.SemaObj) {
Douglas Gregore5fa3c22012-10-03 18:34:48 +00002189 Reader.SemaObj->IdResolver.tryAddTopLevelDecl(New, New->getDeclName());
Richard Smithb60fae52013-09-09 16:55:27 +00002190 } else if (DeclContext *MergeDC = getPrimaryContextForMerging(DC)) {
Richard Smithe7bae152013-07-13 02:00:19 +00002191 // Add the declaration to its redeclaration context so later merging
2192 // lookups will find it.
Richard Smithb60fae52013-09-09 16:55:27 +00002193 MergeDC->makeDeclVisibleInContextImpl(New, /*Internal*/true);
Douglas Gregor0f753232011-12-22 01:48:48 +00002194 }
2195}
2196
2197ASTDeclReader::FindExistingResult ASTDeclReader::findExisting(NamedDecl *D) {
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +00002198 DeclarationName Name = D->getDeclName();
2199 if (!Name) {
2200 // Don't bother trying to find unnamed declarations.
2201 FindExistingResult Result(Reader, D, /*Existing=*/0);
2202 Result.suppress();
2203 return Result;
2204 }
Richard Smithe7bae152013-07-13 02:00:19 +00002205
Richard Smith3c40a282013-10-18 06:05:18 +00002206 // FIXME: Bail out for non-canonical declarations. We will have performed any
2207 // necessary merging already.
2208
Douglas Gregor0f753232011-12-22 01:48:48 +00002209 DeclContext *DC = D->getDeclContext()->getRedeclContext();
Douglas Gregor0f753232011-12-22 01:48:48 +00002210 if (DC->isTranslationUnit() && Reader.SemaObj) {
2211 IdentifierResolver &IdResolver = Reader.SemaObj->IdResolver;
Douglas Gregoraa945902013-02-18 15:53:43 +00002212
2213 // Temporarily consider the identifier to be up-to-date. We don't want to
2214 // cause additional lookups here.
2215 class UpToDateIdentifierRAII {
2216 IdentifierInfo *II;
2217 bool WasOutToDate;
2218
2219 public:
2220 explicit UpToDateIdentifierRAII(IdentifierInfo *II)
2221 : II(II), WasOutToDate(false)
2222 {
2223 if (II) {
2224 WasOutToDate = II->isOutOfDate();
2225 if (WasOutToDate)
2226 II->setOutOfDate(false);
2227 }
2228 }
2229
2230 ~UpToDateIdentifierRAII() {
2231 if (WasOutToDate)
2232 II->setOutOfDate(true);
2233 }
2234 } UpToDate(Name.getAsIdentifierInfo());
2235
Douglas Gregor1ca4a5c2012-01-03 22:46:00 +00002236 for (IdentifierResolver::iterator I = IdResolver.begin(Name),
Douglas Gregor0f753232011-12-22 01:48:48 +00002237 IEnd = IdResolver.end();
2238 I != IEnd; ++I) {
2239 if (isSameEntity(*I, D))
2240 return FindExistingResult(Reader, D, *I);
2241 }
Richard Smithb60fae52013-09-09 16:55:27 +00002242 } else if (DeclContext *MergeDC = getPrimaryContextForMerging(DC)) {
2243 DeclContext::lookup_result R = MergeDC->noload_lookup(Name);
Richard Smithe7bae152013-07-13 02:00:19 +00002244 for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E; ++I) {
David Blaikie3bc93e32012-12-19 00:45:41 +00002245 if (isSameEntity(*I, D))
2246 return FindExistingResult(Reader, D, *I);
Douglas Gregor0fdc09f2012-01-09 17:38:47 +00002247 }
Richard Smith3c40a282013-10-18 06:05:18 +00002248 } else {
2249 // Not in a mergeable context.
2250 return FindExistingResult(Reader);
Douglas Gregor0fdc09f2012-01-09 17:38:47 +00002251 }
Richard Smithb60fae52013-09-09 16:55:27 +00002252
Richard Smith3c40a282013-10-18 06:05:18 +00002253 // If this declaration is from a merged context, make a note that we need to
2254 // check that the canonical definition of that context contains the decl.
2255 if (Reader.MergedDeclContexts.count(D->getLexicalDeclContext()))
2256 Reader.PendingOdrMergeChecks.push_back(D);
2257
2258 return FindExistingResult(Reader, D, /*Existing=*/0);
Douglas Gregor0f753232011-12-22 01:48:48 +00002259}
2260
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00002261void ASTDeclReader::attachPreviousDecl(Decl *D, Decl *previous) {
2262 assert(D && previous);
2263 if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002264 TD->RedeclLink.setNext(cast<TagDecl>(previous));
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00002265 } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002266 FD->RedeclLink.setNext(cast<FunctionDecl>(previous));
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00002267 } else if (VarDecl *VD = dyn_cast<VarDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002268 VD->RedeclLink.setNext(cast<VarDecl>(previous));
Douglas Gregora1be2782011-12-17 23:38:30 +00002269 } else if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002270 TD->RedeclLink.setNext(cast<TypedefNameDecl>(previous));
Richard Smithf06a28932013-10-23 02:17:46 +00002271 } else if (UsingShadowDecl *USD = dyn_cast<UsingShadowDecl>(D)) {
2272 USD->RedeclLink.setNext(cast<UsingShadowDecl>(previous));
Douglas Gregora1be2782011-12-17 23:38:30 +00002273 } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002274 ID->RedeclLink.setNext(cast<ObjCInterfaceDecl>(previous));
Douglas Gregor1d784b22012-01-01 19:51:50 +00002275 } else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002276 PD->RedeclLink.setNext(cast<ObjCProtocolDecl>(previous));
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00002277 } else if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D)) {
David Blaikiedec17762012-05-28 19:38:42 +00002278 ND->RedeclLink.setNext(cast<NamespaceDecl>(previous));
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00002279 } else {
2280 RedeclarableTemplateDecl *TD = cast<RedeclarableTemplateDecl>(D);
David Blaikiedec17762012-05-28 19:38:42 +00002281 TD->RedeclLink.setNext(cast<RedeclarableTemplateDecl>(previous));
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00002282 }
Richard Smith1888b912013-08-02 01:09:12 +00002283
2284 // If the declaration was visible in one module, a redeclaration of it in
2285 // another module remains visible even if it wouldn't be visible by itself.
2286 //
2287 // FIXME: In this case, the declaration should only be visible if a module
2288 // that makes it visible has been imported.
Richard Smith1888b912013-08-02 01:09:12 +00002289 D->IdentifierNamespace |=
2290 previous->IdentifierNamespace &
2291 (Decl::IDNS_Ordinary | Decl::IDNS_Tag | Decl::IDNS_Type);
Argyrios Kyrtzidis0895d152011-02-12 07:50:47 +00002292}
2293
Douglas Gregora1be2782011-12-17 23:38:30 +00002294void ASTDeclReader::attachLatestDecl(Decl *D, Decl *Latest) {
2295 assert(D && Latest);
2296 if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
2297 TD->RedeclLink
2298 = Redeclarable<TagDecl>::LatestDeclLink(cast<TagDecl>(Latest));
2299 } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
Richard Smithf06a28932013-10-23 02:17:46 +00002300 FD->RedeclLink
Douglas Gregora1be2782011-12-17 23:38:30 +00002301 = Redeclarable<FunctionDecl>::LatestDeclLink(cast<FunctionDecl>(Latest));
2302 } else if (VarDecl *VD = dyn_cast<VarDecl>(D)) {
2303 VD->RedeclLink
2304 = Redeclarable<VarDecl>::LatestDeclLink(cast<VarDecl>(Latest));
2305 } else if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) {
2306 TD->RedeclLink
2307 = Redeclarable<TypedefNameDecl>::LatestDeclLink(
2308 cast<TypedefNameDecl>(Latest));
Richard Smithf06a28932013-10-23 02:17:46 +00002309 } else if (UsingShadowDecl *USD = dyn_cast<UsingShadowDecl>(D)) {
2310 USD->RedeclLink
2311 = Redeclarable<UsingShadowDecl>::LatestDeclLink(
2312 cast<UsingShadowDecl>(Latest));
Douglas Gregora1be2782011-12-17 23:38:30 +00002313 } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
2314 ID->RedeclLink
2315 = Redeclarable<ObjCInterfaceDecl>::LatestDeclLink(
2316 cast<ObjCInterfaceDecl>(Latest));
Douglas Gregor1d784b22012-01-01 19:51:50 +00002317 } else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) {
2318 PD->RedeclLink
2319 = Redeclarable<ObjCProtocolDecl>::LatestDeclLink(
2320 cast<ObjCProtocolDecl>(Latest));
Douglas Gregorf5c9f9f2012-01-07 09:11:48 +00002321 } else if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D)) {
2322 ND->RedeclLink
2323 = Redeclarable<NamespaceDecl>::LatestDeclLink(
2324 cast<NamespaceDecl>(Latest));
Douglas Gregora1be2782011-12-17 23:38:30 +00002325 } else {
2326 RedeclarableTemplateDecl *TD = cast<RedeclarableTemplateDecl>(D);
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00002327 TD->RedeclLink
2328 = Redeclarable<RedeclarableTemplateDecl>::LatestDeclLink(
2329 cast<RedeclarableTemplateDecl>(Latest));
Douglas Gregora1be2782011-12-17 23:38:30 +00002330 }
2331}
2332
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00002333ASTReader::MergedDeclsMap::iterator
2334ASTReader::combineStoredMergedDecls(Decl *Canon, GlobalDeclID CanonID) {
2335 // If we don't have any stored merged declarations, just look in the
2336 // merged declarations set.
2337 StoredMergedDeclsMap::iterator StoredPos = StoredMergedDecls.find(CanonID);
2338 if (StoredPos == StoredMergedDecls.end())
2339 return MergedDecls.find(Canon);
2340
2341 // Append the stored merged declarations to the merged declarations set.
2342 MergedDeclsMap::iterator Pos = MergedDecls.find(Canon);
2343 if (Pos == MergedDecls.end())
2344 Pos = MergedDecls.insert(std::make_pair(Canon,
2345 SmallVector<DeclID, 2>())).first;
2346 Pos->second.append(StoredPos->second.begin(), StoredPos->second.end());
2347 StoredMergedDecls.erase(StoredPos);
2348
2349 // Sort and uniquify the set of merged declarations.
2350 llvm::array_pod_sort(Pos->second.begin(), Pos->second.end());
2351 Pos->second.erase(std::unique(Pos->second.begin(), Pos->second.end()),
2352 Pos->second.end());
2353 return Pos;
2354}
2355
Sebastian Redld527cc02010-08-18 23:56:48 +00002356/// \brief Read the declaration at the given offset from the AST file.
Douglas Gregor496c7092011-08-03 15:48:04 +00002357Decl *ASTReader::ReadDeclRecord(DeclID ID) {
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002358 unsigned Index = ID - NUM_PREDEF_DECL_IDS;
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +00002359 unsigned RawLocation = 0;
2360 RecordLocation Loc = DeclCursorForID(ID, RawLocation);
Sebastian Redlc3632732010-10-05 15:59:54 +00002361 llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor;
Chris Lattner698f9252009-04-27 05:27:42 +00002362 // Keep track of where we are in the stream, then jump back there
2363 // after reading this declaration.
Chris Lattnerda930612009-04-27 05:58:23 +00002364 SavedStreamPosition SavedPosition(DeclsCursor);
Chris Lattner698f9252009-04-27 05:27:42 +00002365
Argyrios Kyrtzidis919e6932010-06-28 22:28:35 +00002366 ReadingKindTracker ReadingKind(Read_Decl, *this);
2367
Douglas Gregord89275b2009-07-06 18:54:52 +00002368 // Note that we are loading a declaration record.
Argyrios Kyrtzidis29ee3a22010-07-30 10:03:16 +00002369 Deserializing ADecl(this);
Mike Stump1eb44332009-09-09 15:08:12 +00002370
Sebastian Redlc3632732010-10-05 15:59:54 +00002371 DeclsCursor.JumpToBit(Loc.Offset);
Chris Lattner698f9252009-04-27 05:27:42 +00002372 RecordData Record;
Chris Lattnerda930612009-04-27 05:58:23 +00002373 unsigned Code = DeclsCursor.ReadCode();
Chris Lattner698f9252009-04-27 05:27:42 +00002374 unsigned Idx = 0;
Craig Topperffdf6862012-09-18 05:34:55 +00002375 ASTDeclReader Reader(*this, *Loc.F, ID, RawLocation, Record,Idx);
Chris Lattner698f9252009-04-27 05:27:42 +00002376
Chris Lattnerda930612009-04-27 05:58:23 +00002377 Decl *D = 0;
Chris Lattnerb3ce3572013-01-20 02:38:54 +00002378 switch ((DeclCode)DeclsCursor.readRecord(Code, Record)) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002379 case DECL_CONTEXT_LEXICAL:
2380 case DECL_CONTEXT_VISIBLE:
David Blaikieb219cfc2011-09-23 05:06:16 +00002381 llvm_unreachable("Record cannot be de-serialized with ReadDeclRecord");
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002382 case DECL_TYPEDEF:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002383 D = TypedefDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002384 break;
Richard Smith162e1c12011-04-15 14:24:37 +00002385 case DECL_TYPEALIAS:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002386 D = TypeAliasDecl::CreateDeserialized(Context, ID);
Richard Smith162e1c12011-04-15 14:24:37 +00002387 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002388 case DECL_ENUM:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002389 D = EnumDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002390 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002391 case DECL_RECORD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002392 D = RecordDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002393 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002394 case DECL_ENUM_CONSTANT:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002395 D = EnumConstantDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002396 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002397 case DECL_FUNCTION:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002398 D = FunctionDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002399 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002400 case DECL_LINKAGE_SPEC:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002401 D = LinkageSpecDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002402 break;
Chris Lattnerad8dcf42011-02-17 07:39:24 +00002403 case DECL_LABEL:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002404 D = LabelDecl::CreateDeserialized(Context, ID);
Chris Lattnerad8dcf42011-02-17 07:39:24 +00002405 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002406 case DECL_NAMESPACE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002407 D = NamespaceDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002408 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002409 case DECL_NAMESPACE_ALIAS:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002410 D = NamespaceAliasDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002411 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002412 case DECL_USING:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002413 D = UsingDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002414 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002415 case DECL_USING_SHADOW:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002416 D = UsingShadowDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002417 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002418 case DECL_USING_DIRECTIVE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002419 D = UsingDirectiveDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002420 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002421 case DECL_UNRESOLVED_USING_VALUE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002422 D = UnresolvedUsingValueDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002423 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002424 case DECL_UNRESOLVED_USING_TYPENAME:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002425 D = UnresolvedUsingTypenameDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002426 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002427 case DECL_CXX_RECORD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002428 D = CXXRecordDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002429 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002430 case DECL_CXX_METHOD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002431 D = CXXMethodDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002432 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002433 case DECL_CXX_CONSTRUCTOR:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002434 D = CXXConstructorDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002435 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002436 case DECL_CXX_DESTRUCTOR:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002437 D = CXXDestructorDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002438 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002439 case DECL_CXX_CONVERSION:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002440 D = CXXConversionDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002441 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002442 case DECL_ACCESS_SPEC:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002443 D = AccessSpecDecl::CreateDeserialized(Context, ID);
Abramo Bagnara6206d532010-06-05 05:09:32 +00002444 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002445 case DECL_FRIEND:
Enea Zaffanella8c840282013-01-31 09:54:08 +00002446 D = FriendDecl::CreateDeserialized(Context, ID, Record[Idx++]);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002447 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002448 case DECL_FRIEND_TEMPLATE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002449 D = FriendTemplateDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002450 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002451 case DECL_CLASS_TEMPLATE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002452 D = ClassTemplateDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002453 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002454 case DECL_CLASS_TEMPLATE_SPECIALIZATION:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002455 D = ClassTemplateSpecializationDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002456 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002457 case DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002458 D = ClassTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002459 break;
Larisse Voufoef4579c2013-08-06 01:03:05 +00002460 case DECL_VAR_TEMPLATE:
2461 D = VarTemplateDecl::CreateDeserialized(Context, ID);
2462 break;
2463 case DECL_VAR_TEMPLATE_SPECIALIZATION:
2464 D = VarTemplateSpecializationDecl::CreateDeserialized(Context, ID);
2465 break;
2466 case DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION:
2467 D = VarTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID);
2468 break;
Francois Pichetaf0f4d02011-08-14 03:52:19 +00002469 case DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002470 D = ClassScopeFunctionSpecializationDecl::CreateDeserialized(Context, ID);
Francois Pichetaf0f4d02011-08-14 03:52:19 +00002471 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002472 case DECL_FUNCTION_TEMPLATE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002473 D = FunctionTemplateDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002474 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002475 case DECL_TEMPLATE_TYPE_PARM:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002476 D = TemplateTypeParmDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002477 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002478 case DECL_NON_TYPE_TEMPLATE_PARM:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002479 D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002480 break;
Douglas Gregor6952f1e2011-01-19 20:10:05 +00002481 case DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002482 D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID, Record[Idx++]);
Douglas Gregor6952f1e2011-01-19 20:10:05 +00002483 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002484 case DECL_TEMPLATE_TEMPLATE_PARM:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002485 D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002486 break;
Richard Smith6964b3f2012-09-07 02:06:42 +00002487 case DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK:
2488 D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID,
2489 Record[Idx++]);
2490 break;
Richard Smith3e4c6c42011-05-05 21:57:07 +00002491 case DECL_TYPE_ALIAS_TEMPLATE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002492 D = TypeAliasTemplateDecl::CreateDeserialized(Context, ID);
Richard Smith3e4c6c42011-05-05 21:57:07 +00002493 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002494 case DECL_STATIC_ASSERT:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002495 D = StaticAssertDecl::CreateDeserialized(Context, ID);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00002496 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002497 case DECL_OBJC_METHOD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002498 D = ObjCMethodDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002499 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002500 case DECL_OBJC_INTERFACE:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002501 D = ObjCInterfaceDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002502 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002503 case DECL_OBJC_IVAR:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002504 D = ObjCIvarDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002505 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002506 case DECL_OBJC_PROTOCOL:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002507 D = ObjCProtocolDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002508 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002509 case DECL_OBJC_AT_DEFS_FIELD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002510 D = ObjCAtDefsFieldDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002511 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002512 case DECL_OBJC_CATEGORY:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002513 D = ObjCCategoryDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002514 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002515 case DECL_OBJC_CATEGORY_IMPL:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002516 D = ObjCCategoryImplDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002517 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002518 case DECL_OBJC_IMPLEMENTATION:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002519 D = ObjCImplementationDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002520 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002521 case DECL_OBJC_COMPATIBLE_ALIAS:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002522 D = ObjCCompatibleAliasDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002523 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002524 case DECL_OBJC_PROPERTY:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002525 D = ObjCPropertyDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002526 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002527 case DECL_OBJC_PROPERTY_IMPL:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002528 D = ObjCPropertyImplDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002529 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002530 case DECL_FIELD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002531 D = FieldDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002532 break;
Francois Pichet87c2e122010-11-21 06:08:52 +00002533 case DECL_INDIRECTFIELD:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002534 D = IndirectFieldDecl::CreateDeserialized(Context, ID);
Francois Pichet87c2e122010-11-21 06:08:52 +00002535 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002536 case DECL_VAR:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002537 D = VarDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002538 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002539 case DECL_IMPLICIT_PARAM:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002540 D = ImplicitParamDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002541 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002542 case DECL_PARM_VAR:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002543 D = ParmVarDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002544 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002545 case DECL_FILE_SCOPE_ASM:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002546 D = FileScopeAsmDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002547 break;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002548 case DECL_BLOCK:
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002549 D = BlockDecl::CreateDeserialized(Context, ID);
Chris Lattner698f9252009-04-27 05:27:42 +00002550 break;
John McCall76da55d2013-04-16 07:28:30 +00002551 case DECL_MS_PROPERTY:
2552 D = MSPropertyDecl::CreateDeserialized(Context, ID);
2553 break;
Tareq A. Siraj6afcf882013-04-16 19:37:38 +00002554 case DECL_CAPTURED:
Ben Langmuirdc5be4f2013-05-03 19:20:19 +00002555 D = CapturedDecl::CreateDeserialized(Context, ID, Record[Idx++]);
Tareq A. Siraj6afcf882013-04-16 19:37:38 +00002556 break;
Douglas Gregor7c789c12010-10-29 22:39:52 +00002557 case DECL_CXX_BASE_SPECIFIERS:
2558 Error("attempt to read a C++ base-specifier record as a declaration");
2559 return 0;
Douglas Gregor15de72c2011-12-02 23:23:56 +00002560 case DECL_IMPORT:
2561 // Note: last entry of the ImportDecl record is the number of stored source
2562 // locations.
Douglas Gregor1e68ecc2012-01-05 21:55:30 +00002563 D = ImportDecl::CreateDeserialized(Context, ID, Record.back());
Douglas Gregor15de72c2011-12-02 23:23:56 +00002564 break;
Alexey Bataevc6400582013-03-22 06:34:35 +00002565 case DECL_OMP_THREADPRIVATE:
2566 D = OMPThreadPrivateDecl::CreateDeserialized(Context, ID, Record[Idx++]);
2567 break;
Michael Han684aa732013-02-22 17:15:32 +00002568 case DECL_EMPTY:
2569 D = EmptyDecl::CreateDeserialized(Context, ID);
2570 break;
Chris Lattner698f9252009-04-27 05:27:42 +00002571 }
Chris Lattner698f9252009-04-27 05:27:42 +00002572
Sebastian Redld527cc02010-08-18 23:56:48 +00002573 assert(D && "Unknown declaration reading AST file");
Chris Lattner4e3fcc82009-04-27 06:01:06 +00002574 LoadedDecl(Index, D);
Argyrios Kyrtzidis53a8b972012-02-09 06:02:44 +00002575 // Set the DeclContext before doing any deserialization, to make sure internal
2576 // calls to Decl::getASTContext() by Decl's methods will find the
2577 // TranslationUnitDecl without crashing.
2578 D->setDeclContext(Context.getTranslationUnitDecl());
Chris Lattner4e3fcc82009-04-27 06:01:06 +00002579 Reader.Visit(D);
Chris Lattner698f9252009-04-27 05:27:42 +00002580
2581 // If this declaration is also a declaration context, get the
2582 // offsets for its tables of lexical and visible declarations.
2583 if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
Richard Smithbbcd0f32013-02-07 03:37:08 +00002584 // FIXME: This should really be
2585 // DeclContext *LookupDC = DC->getPrimaryContext();
2586 // but that can walk the redeclaration chain, which might not work yet.
2587 DeclContext *LookupDC = DC;
2588 if (isa<NamespaceDecl>(DC))
2589 LookupDC = DC->getPrimaryContext();
Chris Lattner698f9252009-04-27 05:27:42 +00002590 std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC);
2591 if (Offsets.first || Offsets.second) {
Douglas Gregor0d95f772011-08-24 19:03:07 +00002592 if (Offsets.first != 0)
2593 DC->setHasExternalLexicalStorage(true);
2594 if (Offsets.second != 0)
Richard Smithbbcd0f32013-02-07 03:37:08 +00002595 LookupDC->setHasExternalVisibleStorage(true);
Douglas Gregor0d95f772011-08-24 19:03:07 +00002596 if (ReadDeclContextStorage(*Loc.F, DeclsCursor, Offsets,
2597 Loc.F->DeclContextInfos[DC]))
Sebastian Redl681d7232010-07-27 00:17:23 +00002598 return 0;
Sebastian Redl024e1c42011-04-24 16:27:54 +00002599 }
Sebastian Redle1dde812010-08-24 00:50:04 +00002600
Sebastian Redl024e1c42011-04-24 16:27:54 +00002601 // Now add the pending visible updates for this decl context, if it has any.
2602 DeclContextVisibleUpdatesPending::iterator I =
2603 PendingVisibleUpdates.find(ID);
2604 if (I != PendingVisibleUpdates.end()) {
2605 // There are updates. This means the context has external visible
2606 // storage, even if the original stored version didn't.
Richard Smithbbcd0f32013-02-07 03:37:08 +00002607 LookupDC->setHasExternalVisibleStorage(true);
Sebastian Redl024e1c42011-04-24 16:27:54 +00002608 DeclContextVisibleUpdates &U = I->second;
Sebastian Redl024e1c42011-04-24 16:27:54 +00002609 for (DeclContextVisibleUpdates::iterator UI = U.begin(), UE = U.end();
2610 UI != UE; ++UI) {
Benjamin Kramerb1758c62012-04-15 12:36:49 +00002611 DeclContextInfo &Info = UI->second->DeclContextInfos[DC];
2612 delete Info.NameLookupTableData;
2613 Info.NameLookupTableData = UI->first;
Sebastian Redle1dde812010-08-24 00:50:04 +00002614 }
Sebastian Redl024e1c42011-04-24 16:27:54 +00002615 PendingVisibleUpdates.erase(I);
Chris Lattner698f9252009-04-27 05:27:42 +00002616 }
2617 }
2618 assert(Idx == Record.size());
2619
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002620 // Load any relevant update records.
2621 loadDeclUpdateRecords(ID, D);
Argyrios Kyrtzidis5a174992011-11-14 07:07:59 +00002622
Douglas Gregorcff9f262012-01-27 01:47:08 +00002623 // Load the categories after recursive loading is finished.
2624 if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(D))
2625 if (Class->isThisDeclarationADefinition())
2626 loadObjCCategories(ID, Class);
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002627
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002628 // If we have deserialized a declaration that has a definition the
2629 // AST consumer might need to know about, queue it.
2630 // We don't pass it to the consumer immediately because we may be in recursive
2631 // loading, and some declarations may still be initializing.
Douglas Gregor5456b0fe2012-10-09 17:21:28 +00002632 if (isConsumerInterestedIn(D, Reader.hasPendingBody()))
Douglas Gregorcff9f262012-01-27 01:47:08 +00002633 InterestingDecls.push_back(D);
Axel Naumann39d26c32012-10-02 09:09:43 +00002634
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002635 return D;
2636}
2637
2638void ASTReader::loadDeclUpdateRecords(serialization::DeclID ID, Decl *D) {
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002639 // The declaration may have been modified by files later in the chain.
2640 // If this is the case, read the record containing the updates from each file
2641 // and pass it to ASTDeclReader to make the modifications.
2642 DeclUpdateOffsetsMap::iterator UpdI = DeclUpdateOffsets.find(ID);
2643 if (UpdI != DeclUpdateOffsets.end()) {
2644 FileOffsetsTy &UpdateOffsets = UpdI->second;
2645 for (FileOffsetsTy::iterator
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002646 I = UpdateOffsets.begin(), E = UpdateOffsets.end(); I != E; ++I) {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002647 ModuleFile *F = I->first;
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002648 uint64_t Offset = I->second;
2649 llvm::BitstreamCursor &Cursor = F->DeclsCursor;
2650 SavedStreamPosition SavedPosition(Cursor);
2651 Cursor.JumpToBit(Offset);
2652 RecordData Record;
2653 unsigned Code = Cursor.ReadCode();
Chris Lattnerb3ce3572013-01-20 02:38:54 +00002654 unsigned RecCode = Cursor.readRecord(Code, Record);
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002655 (void)RecCode;
2656 assert(RecCode == DECL_UPDATES && "Expected DECL_UPDATES record!");
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002657
2658 unsigned Idx = 0;
Craig Topperffdf6862012-09-18 05:34:55 +00002659 ASTDeclReader Reader(*this, *F, ID, 0, Record, Idx);
Sebastian Redlf79a7192011-04-29 08:19:30 +00002660 Reader.UpdateDecl(D, *F, Record);
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002661 }
2662 }
Chris Lattner698f9252009-04-27 05:27:42 +00002663}
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002664
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002665namespace {
Douglas Gregora1be2782011-12-17 23:38:30 +00002666 struct CompareLocalRedeclarationsInfoToID {
2667 bool operator()(const LocalRedeclarationsInfo &X, DeclID Y) {
2668 return X.FirstID < Y;
2669 }
2670
2671 bool operator()(DeclID X, const LocalRedeclarationsInfo &Y) {
2672 return X < Y.FirstID;
2673 }
2674
2675 bool operator()(const LocalRedeclarationsInfo &X,
2676 const LocalRedeclarationsInfo &Y) {
2677 return X.FirstID < Y.FirstID;
2678 }
2679 bool operator()(DeclID X, DeclID Y) {
2680 return X < Y;
2681 }
2682 };
2683
Douglas Gregor0f753232011-12-22 01:48:48 +00002684 /// \brief Module visitor class that finds all of the redeclarations of a
2685 ///
Douglas Gregora1be2782011-12-17 23:38:30 +00002686 class RedeclChainVisitor {
2687 ASTReader &Reader;
Douglas Gregor0f753232011-12-22 01:48:48 +00002688 SmallVectorImpl<DeclID> &SearchDecls;
Douglas Gregor2171bf12012-01-15 16:58:34 +00002689 llvm::SmallPtrSet<Decl *, 16> &Deserialized;
Douglas Gregor0f753232011-12-22 01:48:48 +00002690 GlobalDeclID CanonID;
Dmitri Gribenkocfa88f82013-01-12 19:30:44 +00002691 SmallVector<Decl *, 4> Chain;
Douglas Gregora1be2782011-12-17 23:38:30 +00002692
2693 public:
Douglas Gregor0f753232011-12-22 01:48:48 +00002694 RedeclChainVisitor(ASTReader &Reader, SmallVectorImpl<DeclID> &SearchDecls,
Douglas Gregor2171bf12012-01-15 16:58:34 +00002695 llvm::SmallPtrSet<Decl *, 16> &Deserialized,
Douglas Gregor0f753232011-12-22 01:48:48 +00002696 GlobalDeclID CanonID)
Douglas Gregor2171bf12012-01-15 16:58:34 +00002697 : Reader(Reader), SearchDecls(SearchDecls), Deserialized(Deserialized),
Douglas Gregor3efe9992012-01-17 18:13:45 +00002698 CanonID(CanonID) {
2699 for (unsigned I = 0, N = SearchDecls.size(); I != N; ++I)
2700 addToChain(Reader.GetDecl(SearchDecls[I]));
2701 }
Douglas Gregora1be2782011-12-17 23:38:30 +00002702
2703 static bool visit(ModuleFile &M, bool Preorder, void *UserData) {
2704 if (Preorder)
2705 return false;
2706
2707 return static_cast<RedeclChainVisitor *>(UserData)->visit(M);
2708 }
2709
Douglas Gregor2171bf12012-01-15 16:58:34 +00002710 void addToChain(Decl *D) {
2711 if (!D)
2712 return;
2713
Benjamin Kramerd48bcb22012-08-22 15:37:55 +00002714 if (Deserialized.erase(D))
Douglas Gregor2171bf12012-01-15 16:58:34 +00002715 Chain.push_back(D);
Douglas Gregor2171bf12012-01-15 16:58:34 +00002716 }
2717
Douglas Gregor0f753232011-12-22 01:48:48 +00002718 void searchForID(ModuleFile &M, GlobalDeclID GlobalID) {
Douglas Gregora1be2782011-12-17 23:38:30 +00002719 // Map global ID of the first declaration down to the local ID
2720 // used in this module file.
Douglas Gregor0f753232011-12-22 01:48:48 +00002721 DeclID ID = Reader.mapGlobalIDToModuleFileGlobalID(M, GlobalID);
2722 if (!ID)
2723 return;
Douglas Gregora1be2782011-12-17 23:38:30 +00002724
2725 // Perform a binary search to find the local redeclarations for this
2726 // declaration (if any).
2727 const LocalRedeclarationsInfo *Result
Douglas Gregor2171bf12012-01-15 16:58:34 +00002728 = std::lower_bound(M.RedeclarationsMap,
2729 M.RedeclarationsMap + M.LocalNumRedeclarationsInMap,
Douglas Gregor0f753232011-12-22 01:48:48 +00002730 ID, CompareLocalRedeclarationsInfoToID());
Douglas Gregor2171bf12012-01-15 16:58:34 +00002731 if (Result == M.RedeclarationsMap + M.LocalNumRedeclarationsInMap ||
Douglas Gregor0f753232011-12-22 01:48:48 +00002732 Result->FirstID != ID) {
2733 // If we have a previously-canonical singleton declaration that was
2734 // merged into another redeclaration chain, create a trivial chain
2735 // for this single declaration so that it will get wired into the
2736 // complete redeclaration chain.
2737 if (GlobalID != CanonID &&
2738 GlobalID - NUM_PREDEF_DECL_IDS >= M.BaseDeclID &&
2739 GlobalID - NUM_PREDEF_DECL_IDS < M.BaseDeclID + M.LocalNumDecls) {
Douglas Gregor2171bf12012-01-15 16:58:34 +00002740 addToChain(Reader.GetDecl(GlobalID));
Douglas Gregor0f753232011-12-22 01:48:48 +00002741 }
2742
2743 return;
2744 }
2745
Douglas Gregorcff9f262012-01-27 01:47:08 +00002746 // Dig out all of the redeclarations.
Douglas Gregor2171bf12012-01-15 16:58:34 +00002747 unsigned Offset = Result->Offset;
2748 unsigned N = M.RedeclarationChains[Offset];
2749 M.RedeclarationChains[Offset++] = 0; // Don't try to deserialize again
2750 for (unsigned I = 0; I != N; ++I)
2751 addToChain(Reader.GetLocalDecl(M, M.RedeclarationChains[Offset++]));
Douglas Gregor0f753232011-12-22 01:48:48 +00002752 }
2753
2754 bool visit(ModuleFile &M) {
2755 // Visit each of the declarations.
2756 for (unsigned I = 0, N = SearchDecls.size(); I != N; ++I)
2757 searchForID(M, SearchDecls[I]);
Douglas Gregora1be2782011-12-17 23:38:30 +00002758 return false;
2759 }
2760
Douglas Gregor2171bf12012-01-15 16:58:34 +00002761 ArrayRef<Decl *> getChain() const {
2762 return Chain;
Douglas Gregora1be2782011-12-17 23:38:30 +00002763 }
2764 };
2765}
2766
Douglas Gregora1be2782011-12-17 23:38:30 +00002767void ASTReader::loadPendingDeclChain(serialization::GlobalDeclID ID) {
Douglas Gregor0f753232011-12-22 01:48:48 +00002768 Decl *D = GetDecl(ID);
2769 Decl *CanonDecl = D->getCanonicalDecl();
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00002770
Douglas Gregor0f753232011-12-22 01:48:48 +00002771 // Determine the set of declaration IDs we'll be searching for.
Dmitri Gribenkocfa88f82013-01-12 19:30:44 +00002772 SmallVector<DeclID, 1> SearchDecls;
Douglas Gregor0f753232011-12-22 01:48:48 +00002773 GlobalDeclID CanonID = 0;
2774 if (D == CanonDecl) {
2775 SearchDecls.push_back(ID); // Always first.
2776 CanonID = ID;
2777 }
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00002778 MergedDeclsMap::iterator MergedPos = combineStoredMergedDecls(CanonDecl, ID);
Douglas Gregor0f753232011-12-22 01:48:48 +00002779 if (MergedPos != MergedDecls.end())
Axel Naumannb0e33d42012-10-01 09:18:00 +00002780 SearchDecls.append(MergedPos->second.begin(), MergedPos->second.end());
Douglas Gregor0f753232011-12-22 01:48:48 +00002781
Douglas Gregor2171bf12012-01-15 16:58:34 +00002782 // Build up the list of redeclarations.
2783 RedeclChainVisitor Visitor(*this, SearchDecls, RedeclsDeserialized, CanonID);
Douglas Gregora1be2782011-12-17 23:38:30 +00002784 ModuleMgr.visitDepthFirst(&RedeclChainVisitor::visit, &Visitor);
2785
2786 // Retrieve the chains.
Douglas Gregor2171bf12012-01-15 16:58:34 +00002787 ArrayRef<Decl *> Chain = Visitor.getChain();
2788 if (Chain.empty())
Douglas Gregora1be2782011-12-17 23:38:30 +00002789 return;
Douglas Gregor0f753232011-12-22 01:48:48 +00002790
Douglas Gregor2171bf12012-01-15 16:58:34 +00002791 // Hook up the chains.
Douglas Gregorf785a7d2012-01-14 15:55:47 +00002792 Decl *MostRecent = CanonDecl->getMostRecentDecl();
Douglas Gregor2171bf12012-01-15 16:58:34 +00002793 for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
2794 if (Chain[I] == CanonDecl)
2795 continue;
Richard Smith1888b912013-08-02 01:09:12 +00002796
Douglas Gregor2171bf12012-01-15 16:58:34 +00002797 ASTDeclReader::attachPreviousDecl(Chain[I], MostRecent);
2798 MostRecent = Chain[I];
Douglas Gregora1be2782011-12-17 23:38:30 +00002799 }
Douglas Gregor2171bf12012-01-15 16:58:34 +00002800
2801 ASTDeclReader::attachLatestDecl(CanonDecl, MostRecent);
Douglas Gregora1be2782011-12-17 23:38:30 +00002802}
2803
2804namespace {
Douglas Gregorcff9f262012-01-27 01:47:08 +00002805 struct CompareObjCCategoriesInfo {
2806 bool operator()(const ObjCCategoriesInfo &X, DeclID Y) {
2807 return X.DefinitionID < Y;
2808 }
2809
2810 bool operator()(DeclID X, const ObjCCategoriesInfo &Y) {
2811 return X < Y.DefinitionID;
2812 }
2813
2814 bool operator()(const ObjCCategoriesInfo &X,
2815 const ObjCCategoriesInfo &Y) {
2816 return X.DefinitionID < Y.DefinitionID;
2817 }
2818 bool operator()(DeclID X, DeclID Y) {
2819 return X < Y;
2820 }
2821 };
2822
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002823 /// \brief Given an ObjC interface, goes through the modules and links to the
2824 /// interface all the categories for it.
Douglas Gregorcff9f262012-01-27 01:47:08 +00002825 class ObjCCategoriesVisitor {
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002826 ASTReader &Reader;
2827 serialization::GlobalDeclID InterfaceID;
2828 ObjCInterfaceDecl *Interface;
Douglas Gregorcff9f262012-01-27 01:47:08 +00002829 llvm::SmallPtrSet<ObjCCategoryDecl *, 16> &Deserialized;
2830 unsigned PreviousGeneration;
2831 ObjCCategoryDecl *Tail;
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002832 llvm::DenseMap<DeclarationName, ObjCCategoryDecl *> NameCategoryMap;
Douglas Gregorcff9f262012-01-27 01:47:08 +00002833
2834 void add(ObjCCategoryDecl *Cat) {
2835 // Only process each category once.
Benjamin Kramerd48bcb22012-08-22 15:37:55 +00002836 if (!Deserialized.erase(Cat))
Douglas Gregorcff9f262012-01-27 01:47:08 +00002837 return;
Douglas Gregorcff9f262012-01-27 01:47:08 +00002838
2839 // Check for duplicate categories.
2840 if (Cat->getDeclName()) {
2841 ObjCCategoryDecl *&Existing = NameCategoryMap[Cat->getDeclName()];
2842 if (Existing &&
2843 Reader.getOwningModuleFile(Existing)
2844 != Reader.getOwningModuleFile(Cat)) {
2845 // FIXME: We should not warn for duplicates in diamond:
2846 //
2847 // MT //
2848 // / \ //
2849 // ML MR //
2850 // \ / //
2851 // MB //
2852 //
2853 // If there are duplicates in ML/MR, there will be warning when
2854 // creating MB *and* when importing MB. We should not warn when
2855 // importing.
2856 Reader.Diag(Cat->getLocation(), diag::warn_dup_category_def)
2857 << Interface->getDeclName() << Cat->getDeclName();
2858 Reader.Diag(Existing->getLocation(), diag::note_previous_definition);
2859 } else if (!Existing) {
2860 // Record this category.
2861 Existing = Cat;
2862 }
2863 }
2864
2865 // Add this category to the end of the chain.
2866 if (Tail)
2867 ASTDeclReader::setNextObjCCategory(Tail, Cat);
2868 else
Douglas Gregord3297242013-01-16 23:00:23 +00002869 Interface->setCategoryListRaw(Cat);
Douglas Gregorcff9f262012-01-27 01:47:08 +00002870 Tail = Cat;
2871 }
2872
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002873 public:
Douglas Gregorcff9f262012-01-27 01:47:08 +00002874 ObjCCategoriesVisitor(ASTReader &Reader,
2875 serialization::GlobalDeclID InterfaceID,
2876 ObjCInterfaceDecl *Interface,
2877 llvm::SmallPtrSet<ObjCCategoryDecl *, 16> &Deserialized,
2878 unsigned PreviousGeneration)
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002879 : Reader(Reader), InterfaceID(InterfaceID), Interface(Interface),
Douglas Gregorcff9f262012-01-27 01:47:08 +00002880 Deserialized(Deserialized), PreviousGeneration(PreviousGeneration),
2881 Tail(0)
2882 {
2883 // Populate the name -> category map with the set of known categories.
Douglas Gregord3297242013-01-16 23:00:23 +00002884 for (ObjCInterfaceDecl::known_categories_iterator
2885 Cat = Interface->known_categories_begin(),
2886 CatEnd = Interface->known_categories_end();
2887 Cat != CatEnd; ++Cat) {
Douglas Gregorcff9f262012-01-27 01:47:08 +00002888 if (Cat->getDeclName())
Douglas Gregord3297242013-01-16 23:00:23 +00002889 NameCategoryMap[Cat->getDeclName()] = *Cat;
Douglas Gregorcff9f262012-01-27 01:47:08 +00002890
2891 // Keep track of the tail of the category list.
Douglas Gregord3297242013-01-16 23:00:23 +00002892 Tail = *Cat;
Douglas Gregorcff9f262012-01-27 01:47:08 +00002893 }
2894 }
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002895
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002896 static bool visit(ModuleFile &M, void *UserData) {
Douglas Gregorcff9f262012-01-27 01:47:08 +00002897 return static_cast<ObjCCategoriesVisitor *>(UserData)->visit(M);
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002898 }
2899
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002900 bool visit(ModuleFile &M) {
Douglas Gregorcff9f262012-01-27 01:47:08 +00002901 // If we've loaded all of the category information we care about from
2902 // this module file, we're done.
2903 if (M.Generation <= PreviousGeneration)
2904 return true;
2905
2906 // Map global ID of the definition down to the local ID used in this
2907 // module file. If there is no such mapping, we'll find nothing here
2908 // (or in any module it imports).
2909 DeclID LocalID = Reader.mapGlobalIDToModuleFileGlobalID(M, InterfaceID);
2910 if (!LocalID)
2911 return true;
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002912
Douglas Gregorcff9f262012-01-27 01:47:08 +00002913 // Perform a binary search to find the local redeclarations for this
2914 // declaration (if any).
2915 const ObjCCategoriesInfo *Result
2916 = std::lower_bound(M.ObjCCategoriesMap,
2917 M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap,
2918 LocalID, CompareObjCCategoriesInfo());
2919 if (Result == M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap ||
2920 Result->DefinitionID != LocalID) {
2921 // We didn't find anything. If the class definition is in this module
2922 // file, then the module files it depends on cannot have any categories,
2923 // so suppress further lookup.
2924 return Reader.isDeclIDFromModule(InterfaceID, M);
2925 }
2926
2927 // We found something. Dig out all of the categories.
2928 unsigned Offset = Result->Offset;
2929 unsigned N = M.ObjCCategories[Offset];
2930 M.ObjCCategories[Offset++] = 0; // Don't try to deserialize again
2931 for (unsigned I = 0; I != N; ++I)
2932 add(cast_or_null<ObjCCategoryDecl>(
2933 Reader.GetLocalDecl(M, M.ObjCCategories[Offset++])));
2934 return true;
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002935 }
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002936 };
2937}
2938
Douglas Gregorcff9f262012-01-27 01:47:08 +00002939void ASTReader::loadObjCCategories(serialization::GlobalDeclID ID,
2940 ObjCInterfaceDecl *D,
2941 unsigned PreviousGeneration) {
2942 ObjCCategoriesVisitor Visitor(*this, ID, D, CategoriesDeserialized,
2943 PreviousGeneration);
2944 ModuleMgr.visit(ObjCCategoriesVisitor::visit, &Visitor);
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002945}
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002946
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002947void ASTDeclReader::UpdateDecl(Decl *D, ModuleFile &ModuleFile,
Sebastian Redlf79a7192011-04-29 08:19:30 +00002948 const RecordData &Record) {
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00002949 unsigned Idx = 0;
2950 while (Idx < Record.size()) {
2951 switch ((DeclUpdateKind)Record[Idx++]) {
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00002952 case UPD_CXX_ADDED_IMPLICIT_MEMBER:
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002953 cast<CXXRecordDecl>(D)->addedMember(Reader.ReadDecl(ModuleFile, Record, Idx));
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00002954 break;
Argyrios Kyrtzidisbef1a7b2010-10-28 07:38:42 +00002955
2956 case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION:
2957 // It will be added to the template's specializations set when loaded.
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002958 (void)Reader.ReadDecl(ModuleFile, Record, Idx);
Sebastian Redl7c0837f2011-04-24 16:28:13 +00002959 break;
2960
2961 case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE: {
Douglas Gregor496c7092011-08-03 15:48:04 +00002962 NamespaceDecl *Anon
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002963 = Reader.ReadDeclAs<NamespaceDecl>(ModuleFile, Record, Idx);
Douglas Gregor1c3875d2012-01-09 18:07:24 +00002964
2965 // Each module has its own anonymous namespace, which is disjoint from
2966 // any other module's anonymous namespaces, so don't attach the anonymous
2967 // namespace at all.
2968 if (ModuleFile.Kind != MK_Module) {
2969 if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(D))
2970 TU->setAnonymousNamespace(Anon);
2971 else
2972 cast<NamespaceDecl>(D)->setAnonymousNamespace(Anon);
2973 }
Sebastian Redl7c0837f2011-04-24 16:28:13 +00002974 break;
2975 }
Sebastian Redlf79a7192011-04-29 08:19:30 +00002976
2977 case UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER:
2978 cast<VarDecl>(D)->getMemberSpecializationInfo()->setPointOfInstantiation(
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002979 Reader.ReadSourceLocation(ModuleFile, Record, Idx));
Sebastian Redlf79a7192011-04-29 08:19:30 +00002980 break;
Richard Smith9dadfab2013-05-11 05:45:24 +00002981
2982 case UPD_CXX_DEDUCED_RETURN_TYPE: {
2983 FunctionDecl *FD = cast<FunctionDecl>(D);
2984 Reader.Context.adjustDeducedFunctionResultType(
2985 FD, Reader.readType(ModuleFile, Record, Idx));
2986 break;
2987 }
Eli Friedman86164e82013-09-05 00:02:25 +00002988
2989 case UPD_DECL_MARKED_USED: {
Eli Friedman15d29ff2013-09-05 20:13:32 +00002990 // FIXME: This doesn't send the right notifications if there are
2991 // ASTMutationListeners other than an ASTWriter.
Rafael Espindolae7bd89a2013-10-23 16:46:34 +00002992 D->Used = true;
Eli Friedman86164e82013-09-05 00:02:25 +00002993 break;
2994 }
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00002995 }
2996 }
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002997}