contrib/llvm/tools/clang/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 CXXCtorInitializer **
  90 MultiplexExternalSemaSource::GetExternalCXXCtorInitializers(uint64_t Offset) {
  91   for (auto *S : Sources)
  92     if (auto *R = S->GetExternalCXXCtorInitializers(Offset))
  93       return R;
  94   return nullptr;
  95 }
  96
  97 bool MultiplexExternalSemaSource::
  98 FindExternalVisibleDeclsByName(const DeclContext *DC, DeclarationName Name) {
  99   bool AnyDeclsFound = false;
 100   for (size_t i = 0; i < Sources.size(); ++i)
 101     AnyDeclsFound |= Sources[i]->FindExternalVisibleDeclsByName(DC, Name);
 102   return AnyDeclsFound;
 103 }
 104
 105 void MultiplexExternalSemaSource::completeVisibleDeclsMap(const DeclContext *DC){
 106   for(size_t i = 0; i < Sources.size(); ++i)
 107     Sources[i]->completeVisibleDeclsMap(DC);
 108 }
 109
 110 ExternalLoadResult MultiplexExternalSemaSource::
 111 FindExternalLexicalDecls(const DeclContext *DC,
 112                          bool (*isKindWeWant)(Decl::Kind),
 113                          SmallVectorImpl<Decl*> &Result) {
 114   for(size_t i = 0; i < Sources.size(); ++i)
 115     // FIXME: The semantics of the return result is unclear to me...
 116     Sources[i]->FindExternalLexicalDecls(DC, isKindWeWant, Result);
 117
 118   return ELR_Success;
 119 }
 120
 121 void MultiplexExternalSemaSource::FindFileRegionDecls(FileID File,
 122                                                       unsigned Offset,
 123                                                       unsigned Length,
 124                                                 SmallVectorImpl<Decl *> &Decls){
 125   for(size_t i = 0; i < Sources.size(); ++i)
 126     Sources[i]->FindFileRegionDecls(File, Offset, Length, Decls);
 127 }
 128
 129 void MultiplexExternalSemaSource::CompleteType(TagDecl *Tag) {
 130   for(size_t i = 0; i < Sources.size(); ++i)
 131     Sources[i]->CompleteType(Tag);
 132 }
 133
 134 void MultiplexExternalSemaSource::CompleteType(ObjCInterfaceDecl *Class) {
 135   for(size_t i = 0; i < Sources.size(); ++i)
 136     Sources[i]->CompleteType(Class);
 137 }
 138
 139 void MultiplexExternalSemaSource::ReadComments() {
 140   for(size_t i = 0; i < Sources.size(); ++i)
 141     Sources[i]->ReadComments();
 142 }
 143
 144 void MultiplexExternalSemaSource::StartedDeserializing() {
 145   for(size_t i = 0; i < Sources.size(); ++i)
 146     Sources[i]->StartedDeserializing();
 147 }
 148
 149 void MultiplexExternalSemaSource::FinishedDeserializing() {
 150   for(size_t i = 0; i < Sources.size(); ++i)
 151     Sources[i]->FinishedDeserializing();
 152 }
 153
 154 void MultiplexExternalSemaSource::StartTranslationUnit(ASTConsumer *Consumer) {
 155   for(size_t i = 0; i < Sources.size(); ++i)
 156     Sources[i]->StartTranslationUnit(Consumer);
 157 }
 158
 159 void MultiplexExternalSemaSource::PrintStats() {
 160   for(size_t i = 0; i < Sources.size(); ++i)
 161     Sources[i]->PrintStats();
 162 }
 163
 164 bool MultiplexExternalSemaSource::layoutRecordType(const RecordDecl *Record,
 165                                                    uint64_t &Size,
 166                                                    uint64_t &Alignment,
 167                       llvm::DenseMap<const FieldDecl *, uint64_t> &FieldOffsets,
 168                   llvm::DenseMap<const CXXRecordDecl *, CharUnits> &BaseOffsets,
 169           llvm::DenseMap<const CXXRecordDecl *, CharUnits> &VirtualBaseOffsets){
 170   for(size_t i = 0; i < Sources.size(); ++i)
 171     if (Sources[i]->layoutRecordType(Record, Size, Alignment, FieldOffsets,
 172                                      BaseOffsets, VirtualBaseOffsets))
 173       return true;
 174   return false;
 175 }
 176
 177 void MultiplexExternalSemaSource::
 178 getMemoryBufferSizes(MemoryBufferSizes &sizes) const {
 179   for(size_t i = 0; i < Sources.size(); ++i)
 180     Sources[i]->getMemoryBufferSizes(sizes);
 181
 182 }
 183
 184 //===----------------------------------------------------------------------===//
 185 // ExternalSemaSource.
 186 //===----------------------------------------------------------------------===//
 187
 188
 189 void MultiplexExternalSemaSource::InitializeSema(Sema &S) {
 190   for(size_t i = 0; i < Sources.size(); ++i)
 191     Sources[i]->InitializeSema(S);
 192 }
 193
 194 void MultiplexExternalSemaSource::ForgetSema() {
 195   for(size_t i = 0; i < Sources.size(); ++i)
 196     Sources[i]->ForgetSema();
 197 }
 198
 199 void MultiplexExternalSemaSource::ReadMethodPool(Selector Sel) {
 200   for(size_t i = 0; i < Sources.size(); ++i)
 201     Sources[i]->ReadMethodPool(Sel);
 202 }
 203
 204 void MultiplexExternalSemaSource::ReadKnownNamespaces(
 205                                    SmallVectorImpl<NamespaceDecl*> &Namespaces){
 206   for(size_t i = 0; i < Sources.size(); ++i)
 207     Sources[i]->ReadKnownNamespaces(Namespaces);
 208 }
 209
 210 void MultiplexExternalSemaSource::ReadUndefinedButUsed(
 211                          llvm::DenseMap<NamedDecl*, SourceLocation> &Undefined){
 212   for(size_t i = 0; i < Sources.size(); ++i)
 213     Sources[i]->ReadUndefinedButUsed(Undefined);
 214 }
 215
 216 void MultiplexExternalSemaSource::ReadMismatchingDeleteExpressions(
 217     llvm::MapVector<FieldDecl *,
 218                     llvm::SmallVector<std::pair<SourceLocation, bool>, 4>> &
 219         Exprs) {
 220   for (auto &Source : Sources)
 221     Source->ReadMismatchingDeleteExpressions(Exprs);
 222 }
 223
 224 bool MultiplexExternalSemaSource::LookupUnqualified(LookupResult &R, Scope *S){
 225   for(size_t i = 0; i < Sources.size(); ++i)
 226     Sources[i]->LookupUnqualified(R, S);
 227
 228   return !R.empty();
 229 }
 230
 231 void MultiplexExternalSemaSource::ReadTentativeDefinitions(
 232                                      SmallVectorImpl<VarDecl*> &TentativeDefs) {
 233   for(size_t i = 0; i < Sources.size(); ++i)
 234     Sources[i]->ReadTentativeDefinitions(TentativeDefs);
 235 }
 236
 237 void MultiplexExternalSemaSource::ReadUnusedFileScopedDecls(
 238                                 SmallVectorImpl<const DeclaratorDecl*> &Decls) {
 239   for(size_t i = 0; i < Sources.size(); ++i)
 240     Sources[i]->ReadUnusedFileScopedDecls(Decls);
 241 }
 242
 243 void MultiplexExternalSemaSource::ReadDelegatingConstructors(
 244                                   SmallVectorImpl<CXXConstructorDecl*> &Decls) {
 245   for(size_t i = 0; i < Sources.size(); ++i)
 246     Sources[i]->ReadDelegatingConstructors(Decls);
 247 }
 248
 249 void MultiplexExternalSemaSource::ReadExtVectorDecls(
 250                                      SmallVectorImpl<TypedefNameDecl*> &Decls) {
 251   for(size_t i = 0; i < Sources.size(); ++i)
 252     Sources[i]->ReadExtVectorDecls(Decls);
 253 }
 254
 255 void MultiplexExternalSemaSource::ReadUnusedLocalTypedefNameCandidates(
 256     llvm::SmallSetVector<const TypedefNameDecl *, 4> &Decls) {
 257   for(size_t i = 0; i < Sources.size(); ++i)
 258     Sources[i]->ReadUnusedLocalTypedefNameCandidates(Decls);
 259 }
 260
 261 void MultiplexExternalSemaSource::ReadReferencedSelectors(
 262                   SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) {
 263   for(size_t i = 0; i < Sources.size(); ++i)
 264     Sources[i]->ReadReferencedSelectors(Sels);
 265 }
 266
 267 void MultiplexExternalSemaSource::ReadWeakUndeclaredIdentifiers(
 268                    SmallVectorImpl<std::pair<IdentifierInfo*, WeakInfo> > &WI) {
 269   for(size_t i = 0; i < Sources.size(); ++i)
 270     Sources[i]->ReadWeakUndeclaredIdentifiers(WI);
 271 }
 272
 273 void MultiplexExternalSemaSource::ReadUsedVTables(
 274                                   SmallVectorImpl<ExternalVTableUse> &VTables) {
 275   for(size_t i = 0; i < Sources.size(); ++i)
 276     Sources[i]->ReadUsedVTables(VTables);
 277 }
 278
 279 void MultiplexExternalSemaSource::ReadPendingInstantiations(
 280                                            SmallVectorImpl<std::pair<ValueDecl*,
 281                                                    SourceLocation> > &Pending) {
 282   for(size_t i = 0; i < Sources.size(); ++i)
 283     Sources[i]->ReadPendingInstantiations(Pending);
 284 }
 285
 286 void MultiplexExternalSemaSource::ReadLateParsedTemplates(
 287     llvm::MapVector<const FunctionDecl *, LateParsedTemplate *> &LPTMap) {
 288   for (size_t i = 0; i < Sources.size(); ++i)
 289     Sources[i]->ReadLateParsedTemplates(LPTMap);
 290 }
 291
 292 TypoCorrection MultiplexExternalSemaSource::CorrectTypo(
 293                                      const DeclarationNameInfo &Typo,
 294                                      int LookupKind, Scope *S, CXXScopeSpec *SS,
 295                                      CorrectionCandidateCallback &CCC,
 296                                      DeclContext *MemberContext,
 297                                      bool EnteringContext,
 298                                      const ObjCObjectPointerType *OPT) {
 299   for (size_t I = 0, E = Sources.size(); I < E; ++I) {
 300     if (TypoCorrection C = Sources[I]->CorrectTypo(Typo, LookupKind, S, SS, CCC,
 301                                                    MemberContext,
 302                                                    EnteringContext, OPT))
 303       return C;
 304   }
 305   return TypoCorrection();
 306 }
 307
 308 bool MultiplexExternalSemaSource::MaybeDiagnoseMissingCompleteType(
 309     SourceLocation Loc, QualType T) {
 310   for (size_t I = 0, E = Sources.size(); I < E; ++I) {
 311     if (Sources[I]->MaybeDiagnoseMissingCompleteType(Loc, T))
 312       return true;
 313   }
 314   return false;
 315 }