lib/Sema/MultiplexExternalSemaSource.cpp

   1 //===--- MultiplexExternalSemaSource.cpp  ---------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements the event dispatching to the subscribed clients.
  11 //
  12 //===----------------------------------------------------------------------===//
  13 #include "clang/Sema/MultiplexExternalSemaSource.h"
  14 #include "clang/AST/DeclContextInternals.h"
  15 #include "clang/Sema/Lookup.h"
  16
  17 using namespace clang;
  18
  19 ///\brief Constructs a new multiplexing external sema source and appends the
  20 /// given element to it.
  21 ///
  22 ///\param[in] source - An ExternalSemaSource.
  23 ///
  24 MultiplexExternalSemaSource::MultiplexExternalSemaSource(ExternalSemaSource &s1,
  25                                                         ExternalSemaSource &s2){
  26   Sources.push_back(&s1);
  27   Sources.push_back(&s2);
  28 }
  29
  30 // pin the vtable here.
  31 MultiplexExternalSemaSource::~MultiplexExternalSemaSource() {}
  32
  33 ///\brief Appends new source to the source list.
  34 ///
  35 ///\param[in] source - An ExternalSemaSource.
  36 ///
  37 void MultiplexExternalSemaSource::addSource(ExternalSemaSource &source) {
  38   Sources.push_back(&source);
  39 }
  40
  41 //===----------------------------------------------------------------------===//
  42 // ExternalASTSource.
  43 //===----------------------------------------------------------------------===//
  44
  45 Decl *MultiplexExternalSemaSource::GetExternalDecl(uint32_t ID) {
  46   for(size_t i = 0; i < Sources.size(); ++i)
  47     if (Decl *Result = Sources[i]->GetExternalDecl(ID))
  48       return Result;
  49   return nullptr;
  50 }
  51
  52 void MultiplexExternalSemaSource::CompleteRedeclChain(const Decl *D) {
  53   for (size_t i = 0; i < Sources.size(); ++i)
  54     Sources[i]->CompleteRedeclChain(D);
  55 }
  56
  57 Selector MultiplexExternalSemaSource::GetExternalSelector(uint32_t ID) {
  58   Selector Sel;
  59   for(size_t i = 0; i < Sources.size(); ++i) {
  60     Sel = Sources[i]->GetExternalSelector(ID);
  61     if (!Sel.isNull())
  62       return Sel;
  63   }
  64   return Sel;
  65 }
  66
  67 uint32_t MultiplexExternalSemaSource::GetNumExternalSelectors() {
  68   uint32_t total = 0;
  69   for(size_t i = 0; i < Sources.size(); ++i)
  70     total += Sources[i]->GetNumExternalSelectors();
  71   return total;
  72 }
  73
  74 Stmt *MultiplexExternalSemaSource::GetExternalDeclStmt(uint64_t Offset) {
  75   for(size_t i = 0; i < Sources.size(); ++i)
  76     if (Stmt *Result = Sources[i]->GetExternalDeclStmt(Offset))
  77       return Result;
  78   return nullptr;
  79 }
  80
  81 CXXBaseSpecifier *MultiplexExternalSemaSource::GetExternalCXXBaseSpecifiers(
  82                                                                uint64_t Offset){
  83   for(size_t i = 0; i < Sources.size(); ++i)
  84     if (CXXBaseSpecifier *R = Sources[i]->GetExternalCXXBaseSpecifiers(Offset))
  85       return R;
  86   return nullptr;
  87 }
  88
  89 bool MultiplexExternalSemaSource::
  90 FindExternalVisibleDeclsByName(const DeclContext *DC, DeclarationName Name) {
  91   bool AnyDeclsFound = false;
  92   for (size_t i = 0; i < Sources.size(); ++i)
  93     AnyDeclsFound |= Sources[i]->FindExternalVisibleDeclsByName(DC, Name);
  94   return AnyDeclsFound;
  95 }
  96
  97 void MultiplexExternalSemaSource::completeVisibleDeclsMap(const DeclContext *DC){
  98   for(size_t i = 0; i < Sources.size(); ++i)
  99     Sources[i]->completeVisibleDeclsMap(DC);
 100 }
 101
 102 ExternalLoadResult MultiplexExternalSemaSource::
 103 FindExternalLexicalDecls(const DeclContext *DC,
 104                          bool (*isKindWeWant)(Decl::Kind),
 105                          SmallVectorImpl<Decl*> &Result) {
 106   for(size_t i = 0; i < Sources.size(); ++i)
 107     // FIXME: The semantics of the return result is unclear to me...
 108     Sources[i]->FindExternalLexicalDecls(DC, isKindWeWant, Result);
 109
 110   return ELR_Success;
 111 }
 112
 113 void MultiplexExternalSemaSource::FindFileRegionDecls(FileID File,
 114                                                       unsigned Offset,
 115                                                       unsigned Length,
 116                                                 SmallVectorImpl<Decl *> &Decls){
 117   for(size_t i = 0; i < Sources.size(); ++i)
 118     Sources[i]->FindFileRegionDecls(File, Offset, Length, Decls);
 119 }
 120
 121 void MultiplexExternalSemaSource::CompleteType(TagDecl *Tag) {
 122   for(size_t i = 0; i < Sources.size(); ++i)
 123     Sources[i]->CompleteType(Tag);
 124 }
 125
 126 void MultiplexExternalSemaSource::CompleteType(ObjCInterfaceDecl *Class) {
 127   for(size_t i = 0; i < Sources.size(); ++i)
 128     Sources[i]->CompleteType(Class);
 129 }
 130
 131 void MultiplexExternalSemaSource::ReadComments() {
 132   for(size_t i = 0; i < Sources.size(); ++i)
 133     Sources[i]->ReadComments();
 134 }
 135
 136 void MultiplexExternalSemaSource::StartedDeserializing() {
 137   for(size_t i = 0; i < Sources.size(); ++i)
 138     Sources[i]->StartedDeserializing();
 139 }
 140
 141 void MultiplexExternalSemaSource::FinishedDeserializing() {
 142   for(size_t i = 0; i < Sources.size(); ++i)
 143     Sources[i]->FinishedDeserializing();
 144 }
 145
 146 void MultiplexExternalSemaSource::StartTranslationUnit(ASTConsumer *Consumer) {
 147   for(size_t i = 0; i < Sources.size(); ++i)
 148     Sources[i]->StartTranslationUnit(Consumer);
 149 }
 150
 151 void MultiplexExternalSemaSource::PrintStats() {
 152   for(size_t i = 0; i < Sources.size(); ++i)
 153     Sources[i]->PrintStats();
 154 }
 155
 156 bool MultiplexExternalSemaSource::layoutRecordType(const RecordDecl *Record,
 157                                                    uint64_t &Size,
 158                                                    uint64_t &Alignment,
 159                       llvm::DenseMap<const FieldDecl *, uint64_t> &FieldOffsets,
 160                   llvm::DenseMap<const CXXRecordDecl *, CharUnits> &BaseOffsets,
 161           llvm::DenseMap<const CXXRecordDecl *, CharUnits> &VirtualBaseOffsets){
 162   for(size_t i = 0; i < Sources.size(); ++i)
 163     if (Sources[i]->layoutRecordType(Record, Size, Alignment, FieldOffsets,
 164                                      BaseOffsets, VirtualBaseOffsets))
 165       return true;
 166   return false;
 167 }
 168
 169 void MultiplexExternalSemaSource::
 170 getMemoryBufferSizes(MemoryBufferSizes &sizes) const {
 171   for(size_t i = 0; i < Sources.size(); ++i)
 172     Sources[i]->getMemoryBufferSizes(sizes);
 173
 174 }
 175
 176 //===----------------------------------------------------------------------===//
 177 // ExternalSemaSource.
 178 //===----------------------------------------------------------------------===//
 179
 180
 181 void MultiplexExternalSemaSource::InitializeSema(Sema &S) {
 182   for(size_t i = 0; i < Sources.size(); ++i)
 183     Sources[i]->InitializeSema(S);
 184 }
 185
 186 void MultiplexExternalSemaSource::ForgetSema() {
 187   for(size_t i = 0; i < Sources.size(); ++i)
 188     Sources[i]->ForgetSema();
 189 }
 190
 191 void MultiplexExternalSemaSource::ReadMethodPool(Selector Sel) {
 192   for(size_t i = 0; i < Sources.size(); ++i)
 193     Sources[i]->ReadMethodPool(Sel);
 194 }
 195
 196 void MultiplexExternalSemaSource::ReadKnownNamespaces(
 197                                    SmallVectorImpl<NamespaceDecl*> &Namespaces){
 198   for(size_t i = 0; i < Sources.size(); ++i)
 199     Sources[i]->ReadKnownNamespaces(Namespaces);
 200 }
 201
 202 void MultiplexExternalSemaSource::ReadUndefinedButUsed(
 203                          llvm::DenseMap<NamedDecl*, SourceLocation> &Undefined){
 204   for(size_t i = 0; i < Sources.size(); ++i)
 205     Sources[i]->ReadUndefinedButUsed(Undefined);
 206 }
 207
 208 bool MultiplexExternalSemaSource::LookupUnqualified(LookupResult &R, Scope *S){
 209   for(size_t i = 0; i < Sources.size(); ++i)
 210     Sources[i]->LookupUnqualified(R, S);
 211
 212   return !R.empty();
 213 }
 214
 215 void MultiplexExternalSemaSource::ReadTentativeDefinitions(
 216                                      SmallVectorImpl<VarDecl*> &TentativeDefs) {
 217   for(size_t i = 0; i < Sources.size(); ++i)
 218     Sources[i]->ReadTentativeDefinitions(TentativeDefs);
 219 }
 220
 221 void MultiplexExternalSemaSource::ReadUnusedFileScopedDecls(
 222                                 SmallVectorImpl<const DeclaratorDecl*> &Decls) {
 223   for(size_t i = 0; i < Sources.size(); ++i)
 224     Sources[i]->ReadUnusedFileScopedDecls(Decls);
 225 }
 226
 227 void MultiplexExternalSemaSource::ReadDelegatingConstructors(
 228                                   SmallVectorImpl<CXXConstructorDecl*> &Decls) {
 229   for(size_t i = 0; i < Sources.size(); ++i)
 230     Sources[i]->ReadDelegatingConstructors(Decls);
 231 }
 232
 233 void MultiplexExternalSemaSource::ReadExtVectorDecls(
 234                                      SmallVectorImpl<TypedefNameDecl*> &Decls) {
 235   for(size_t i = 0; i < Sources.size(); ++i)
 236     Sources[i]->ReadExtVectorDecls(Decls);
 237 }
 238
 239 void MultiplexExternalSemaSource::ReadDynamicClasses(
 240                                        SmallVectorImpl<CXXRecordDecl*> &Decls) {
 241   for(size_t i = 0; i < Sources.size(); ++i)
 242     Sources[i]->ReadDynamicClasses(Decls);
 243 }
 244
 245 void MultiplexExternalSemaSource::ReadUnusedLocalTypedefNameCandidates(
 246     llvm::SmallSetVector<const TypedefNameDecl *, 4> &Decls) {
 247   for(size_t i = 0; i < Sources.size(); ++i)
 248     Sources[i]->ReadUnusedLocalTypedefNameCandidates(Decls);
 249 }
 250
 251 void MultiplexExternalSemaSource::ReadLocallyScopedExternCDecls(
 252                                            SmallVectorImpl<NamedDecl*> &Decls) {
 253   for(size_t i = 0; i < Sources.size(); ++i)
 254     Sources[i]->ReadLocallyScopedExternCDecls(Decls);
 255 }
 256
 257 void MultiplexExternalSemaSource::ReadReferencedSelectors(
 258                   SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) {
 259   for(size_t i = 0; i < Sources.size(); ++i)
 260     Sources[i]->ReadReferencedSelectors(Sels);
 261 }
 262
 263 void MultiplexExternalSemaSource::ReadWeakUndeclaredIdentifiers(
 264                    SmallVectorImpl<std::pair<IdentifierInfo*, WeakInfo> > &WI) {
 265   for(size_t i = 0; i < Sources.size(); ++i)
 266     Sources[i]->ReadWeakUndeclaredIdentifiers(WI);
 267 }
 268
 269 void MultiplexExternalSemaSource::ReadUsedVTables(
 270                                   SmallVectorImpl<ExternalVTableUse> &VTables) {
 271   for(size_t i = 0; i < Sources.size(); ++i)
 272     Sources[i]->ReadUsedVTables(VTables);
 273 }
 274
 275 void MultiplexExternalSemaSource::ReadPendingInstantiations(
 276                                            SmallVectorImpl<std::pair<ValueDecl*,
 277                                                    SourceLocation> > &Pending) {
 278   for(size_t i = 0; i < Sources.size(); ++i)
 279     Sources[i]->ReadPendingInstantiations(Pending);
 280 }
 281
 282 void MultiplexExternalSemaSource::ReadLateParsedTemplates(
 283     llvm::DenseMap<const FunctionDecl *, LateParsedTemplate *> &LPTMap) {
 284   for (size_t i = 0; i < Sources.size(); ++i)
 285     Sources[i]->ReadLateParsedTemplates(LPTMap);
 286 }
 287
 288 TypoCorrection MultiplexExternalSemaSource::CorrectTypo(
 289                                      const DeclarationNameInfo &Typo,
 290                                      int LookupKind, Scope *S, CXXScopeSpec *SS,
 291                                      CorrectionCandidateCallback &CCC,
 292                                      DeclContext *MemberContext,
 293                                      bool EnteringContext,
 294                                      const ObjCObjectPointerType *OPT) {
 295   for (size_t I = 0, E = Sources.size(); I < E; ++I) {
 296     if (TypoCorrection C = Sources[I]->CorrectTypo(Typo, LookupKind, S, SS, CCC,
 297                                                    MemberContext,
 298                                                    EnteringContext, OPT))
 299       return C;
 300   }
 301   return TypoCorrection();
 302 }
 303
 304 bool MultiplexExternalSemaSource::MaybeDiagnoseMissingCompleteType(
 305     SourceLocation Loc, QualType T) {
 306   for (size_t I = 0, E = Sources.size(); I < E; ++I) {
 307     if (Sources[I]->MaybeDiagnoseMissingCompleteType(Loc, T))
 308       return true;
 309   }
 310   return false;
 311 }