Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1 | //===--- ASTReader.cpp - AST File Reader ------------------------*- C++ -*-===// |
| 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 defines the ASTReader class, which reads AST files. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "clang/Serialization/ASTReader.h" |
| 15 | #include "ASTCommon.h" |
| 16 | #include "ASTReaderInternals.h" |
| 17 | #include "clang/AST/ASTConsumer.h" |
| 18 | #include "clang/AST/ASTContext.h" |
| 19 | #include "clang/AST/DeclTemplate.h" |
| 20 | #include "clang/AST/Expr.h" |
| 21 | #include "clang/AST/ExprCXX.h" |
| 22 | #include "clang/AST/NestedNameSpecifier.h" |
| 23 | #include "clang/AST/Type.h" |
| 24 | #include "clang/AST/TypeLocVisitor.h" |
| 25 | #include "clang/Basic/FileManager.h" |
| 26 | #include "clang/Basic/FileSystemStatCache.h" |
| 27 | #include "clang/Basic/OnDiskHashTable.h" |
| 28 | #include "clang/Basic/SourceManager.h" |
| 29 | #include "clang/Basic/SourceManagerInternals.h" |
| 30 | #include "clang/Basic/TargetInfo.h" |
| 31 | #include "clang/Basic/TargetOptions.h" |
| 32 | #include "clang/Basic/Version.h" |
| 33 | #include "clang/Basic/VersionTuple.h" |
| 34 | #include "clang/Lex/HeaderSearch.h" |
| 35 | #include "clang/Lex/HeaderSearchOptions.h" |
| 36 | #include "clang/Lex/MacroInfo.h" |
| 37 | #include "clang/Lex/PreprocessingRecord.h" |
| 38 | #include "clang/Lex/Preprocessor.h" |
| 39 | #include "clang/Lex/PreprocessorOptions.h" |
| 40 | #include "clang/Sema/Scope.h" |
| 41 | #include "clang/Sema/Sema.h" |
| 42 | #include "clang/Serialization/ASTDeserializationListener.h" |
| 43 | #include "clang/Serialization/ModuleManager.h" |
| 44 | #include "clang/Serialization/SerializationDiagnostic.h" |
| 45 | #include "llvm/ADT/StringExtras.h" |
| 46 | #include "llvm/Bitcode/BitstreamReader.h" |
| 47 | #include "llvm/Support/ErrorHandling.h" |
| 48 | #include "llvm/Support/FileSystem.h" |
| 49 | #include "llvm/Support/MemoryBuffer.h" |
| 50 | #include "llvm/Support/Path.h" |
| 51 | #include "llvm/Support/SaveAndRestore.h" |
| 52 | #include "llvm/Support/system_error.h" |
| 53 | #include <algorithm> |
Chris Lattner | e4e4a88 | 2013-01-20 00:57:52 +0000 | [diff] [blame] | 54 | #include <cstdio> |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 55 | #include <iterator> |
| 56 | |
| 57 | using namespace clang; |
| 58 | using namespace clang::serialization; |
| 59 | using namespace clang::serialization::reader; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 60 | using llvm::BitstreamCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 61 | |
| 62 | //===----------------------------------------------------------------------===// |
| 63 | // PCH validator implementation |
| 64 | //===----------------------------------------------------------------------===// |
| 65 | |
| 66 | ASTReaderListener::~ASTReaderListener() {} |
| 67 | |
| 68 | /// \brief Compare the given set of language options against an existing set of |
| 69 | /// language options. |
| 70 | /// |
| 71 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine. |
| 72 | /// |
| 73 | /// \returns true if the languagae options mis-match, false otherwise. |
| 74 | static bool checkLanguageOptions(const LangOptions &LangOpts, |
| 75 | const LangOptions &ExistingLangOpts, |
| 76 | DiagnosticsEngine *Diags) { |
| 77 | #define LANGOPT(Name, Bits, Default, Description) \ |
| 78 | if (ExistingLangOpts.Name != LangOpts.Name) { \ |
| 79 | if (Diags) \ |
| 80 | Diags->Report(diag::err_pch_langopt_mismatch) \ |
| 81 | << Description << LangOpts.Name << ExistingLangOpts.Name; \ |
| 82 | return true; \ |
| 83 | } |
| 84 | |
| 85 | #define VALUE_LANGOPT(Name, Bits, Default, Description) \ |
| 86 | if (ExistingLangOpts.Name != LangOpts.Name) { \ |
| 87 | if (Diags) \ |
| 88 | Diags->Report(diag::err_pch_langopt_value_mismatch) \ |
| 89 | << Description; \ |
| 90 | return true; \ |
| 91 | } |
| 92 | |
| 93 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
| 94 | if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \ |
| 95 | if (Diags) \ |
| 96 | Diags->Report(diag::err_pch_langopt_value_mismatch) \ |
| 97 | << Description; \ |
| 98 | return true; \ |
| 99 | } |
| 100 | |
| 101 | #define BENIGN_LANGOPT(Name, Bits, Default, Description) |
| 102 | #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) |
| 103 | #include "clang/Basic/LangOptions.def" |
| 104 | |
| 105 | if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) { |
| 106 | if (Diags) |
| 107 | Diags->Report(diag::err_pch_langopt_value_mismatch) |
| 108 | << "target Objective-C runtime"; |
| 109 | return true; |
| 110 | } |
| 111 | |
| 112 | return false; |
| 113 | } |
| 114 | |
| 115 | /// \brief Compare the given set of target options against an existing set of |
| 116 | /// target options. |
| 117 | /// |
| 118 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine. |
| 119 | /// |
| 120 | /// \returns true if the target options mis-match, false otherwise. |
| 121 | static bool checkTargetOptions(const TargetOptions &TargetOpts, |
| 122 | const TargetOptions &ExistingTargetOpts, |
| 123 | DiagnosticsEngine *Diags) { |
| 124 | #define CHECK_TARGET_OPT(Field, Name) \ |
| 125 | if (TargetOpts.Field != ExistingTargetOpts.Field) { \ |
| 126 | if (Diags) \ |
| 127 | Diags->Report(diag::err_pch_targetopt_mismatch) \ |
| 128 | << Name << TargetOpts.Field << ExistingTargetOpts.Field; \ |
| 129 | return true; \ |
| 130 | } |
| 131 | |
| 132 | CHECK_TARGET_OPT(Triple, "target"); |
| 133 | CHECK_TARGET_OPT(CPU, "target CPU"); |
| 134 | CHECK_TARGET_OPT(ABI, "target ABI"); |
| 135 | CHECK_TARGET_OPT(CXXABI, "target C++ ABI"); |
| 136 | CHECK_TARGET_OPT(LinkerVersion, "target linker version"); |
| 137 | #undef CHECK_TARGET_OPT |
| 138 | |
| 139 | // Compare feature sets. |
| 140 | SmallVector<StringRef, 4> ExistingFeatures( |
| 141 | ExistingTargetOpts.FeaturesAsWritten.begin(), |
| 142 | ExistingTargetOpts.FeaturesAsWritten.end()); |
| 143 | SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(), |
| 144 | TargetOpts.FeaturesAsWritten.end()); |
| 145 | std::sort(ExistingFeatures.begin(), ExistingFeatures.end()); |
| 146 | std::sort(ReadFeatures.begin(), ReadFeatures.end()); |
| 147 | |
| 148 | unsigned ExistingIdx = 0, ExistingN = ExistingFeatures.size(); |
| 149 | unsigned ReadIdx = 0, ReadN = ReadFeatures.size(); |
| 150 | while (ExistingIdx < ExistingN && ReadIdx < ReadN) { |
| 151 | if (ExistingFeatures[ExistingIdx] == ReadFeatures[ReadIdx]) { |
| 152 | ++ExistingIdx; |
| 153 | ++ReadIdx; |
| 154 | continue; |
| 155 | } |
| 156 | |
| 157 | if (ReadFeatures[ReadIdx] < ExistingFeatures[ExistingIdx]) { |
| 158 | if (Diags) |
| 159 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 160 | << false << ReadFeatures[ReadIdx]; |
| 161 | return true; |
| 162 | } |
| 163 | |
| 164 | if (Diags) |
| 165 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 166 | << true << ExistingFeatures[ExistingIdx]; |
| 167 | return true; |
| 168 | } |
| 169 | |
| 170 | if (ExistingIdx < ExistingN) { |
| 171 | if (Diags) |
| 172 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 173 | << true << ExistingFeatures[ExistingIdx]; |
| 174 | return true; |
| 175 | } |
| 176 | |
| 177 | if (ReadIdx < ReadN) { |
| 178 | if (Diags) |
| 179 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 180 | << false << ReadFeatures[ReadIdx]; |
| 181 | return true; |
| 182 | } |
| 183 | |
| 184 | return false; |
| 185 | } |
| 186 | |
| 187 | bool |
| 188 | PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts, |
| 189 | bool Complain) { |
| 190 | const LangOptions &ExistingLangOpts = PP.getLangOpts(); |
| 191 | return checkLanguageOptions(LangOpts, ExistingLangOpts, |
| 192 | Complain? &Reader.Diags : 0); |
| 193 | } |
| 194 | |
| 195 | bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts, |
| 196 | bool Complain) { |
| 197 | const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts(); |
| 198 | return checkTargetOptions(TargetOpts, ExistingTargetOpts, |
| 199 | Complain? &Reader.Diags : 0); |
| 200 | } |
| 201 | |
| 202 | namespace { |
| 203 | typedef llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> > |
| 204 | MacroDefinitionsMap; |
| 205 | } |
| 206 | |
| 207 | /// \brief Collect the macro definitions provided by the given preprocessor |
| 208 | /// options. |
| 209 | static void collectMacroDefinitions(const PreprocessorOptions &PPOpts, |
| 210 | MacroDefinitionsMap &Macros, |
| 211 | SmallVectorImpl<StringRef> *MacroNames = 0){ |
| 212 | for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) { |
| 213 | StringRef Macro = PPOpts.Macros[I].first; |
| 214 | bool IsUndef = PPOpts.Macros[I].second; |
| 215 | |
| 216 | std::pair<StringRef, StringRef> MacroPair = Macro.split('='); |
| 217 | StringRef MacroName = MacroPair.first; |
| 218 | StringRef MacroBody = MacroPair.second; |
| 219 | |
| 220 | // For an #undef'd macro, we only care about the name. |
| 221 | if (IsUndef) { |
| 222 | if (MacroNames && !Macros.count(MacroName)) |
| 223 | MacroNames->push_back(MacroName); |
| 224 | |
| 225 | Macros[MacroName] = std::make_pair("", true); |
| 226 | continue; |
| 227 | } |
| 228 | |
| 229 | // For a #define'd macro, figure out the actual definition. |
| 230 | if (MacroName.size() == Macro.size()) |
| 231 | MacroBody = "1"; |
| 232 | else { |
| 233 | // Note: GCC drops anything following an end-of-line character. |
| 234 | StringRef::size_type End = MacroBody.find_first_of("\n\r"); |
| 235 | MacroBody = MacroBody.substr(0, End); |
| 236 | } |
| 237 | |
| 238 | if (MacroNames && !Macros.count(MacroName)) |
| 239 | MacroNames->push_back(MacroName); |
| 240 | Macros[MacroName] = std::make_pair(MacroBody, false); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | /// \brief Check the preprocessor options deserialized from the control block |
| 245 | /// against the preprocessor options in an existing preprocessor. |
| 246 | /// |
| 247 | /// \param Diags If non-null, produce diagnostics for any mismatches incurred. |
| 248 | static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts, |
| 249 | const PreprocessorOptions &ExistingPPOpts, |
| 250 | DiagnosticsEngine *Diags, |
| 251 | FileManager &FileMgr, |
| 252 | std::string &SuggestedPredefines) { |
| 253 | // Check macro definitions. |
| 254 | MacroDefinitionsMap ASTFileMacros; |
| 255 | collectMacroDefinitions(PPOpts, ASTFileMacros); |
| 256 | MacroDefinitionsMap ExistingMacros; |
| 257 | SmallVector<StringRef, 4> ExistingMacroNames; |
| 258 | collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames); |
| 259 | |
| 260 | for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) { |
| 261 | // Dig out the macro definition in the existing preprocessor options. |
| 262 | StringRef MacroName = ExistingMacroNames[I]; |
| 263 | std::pair<StringRef, bool> Existing = ExistingMacros[MacroName]; |
| 264 | |
| 265 | // Check whether we know anything about this macro name or not. |
| 266 | llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >::iterator Known |
| 267 | = ASTFileMacros.find(MacroName); |
| 268 | if (Known == ASTFileMacros.end()) { |
| 269 | // FIXME: Check whether this identifier was referenced anywhere in the |
| 270 | // AST file. If so, we should reject the AST file. Unfortunately, this |
| 271 | // information isn't in the control block. What shall we do about it? |
| 272 | |
| 273 | if (Existing.second) { |
| 274 | SuggestedPredefines += "#undef "; |
| 275 | SuggestedPredefines += MacroName.str(); |
| 276 | SuggestedPredefines += '\n'; |
| 277 | } else { |
| 278 | SuggestedPredefines += "#define "; |
| 279 | SuggestedPredefines += MacroName.str(); |
| 280 | SuggestedPredefines += ' '; |
| 281 | SuggestedPredefines += Existing.first.str(); |
| 282 | SuggestedPredefines += '\n'; |
| 283 | } |
| 284 | continue; |
| 285 | } |
| 286 | |
| 287 | // If the macro was defined in one but undef'd in the other, we have a |
| 288 | // conflict. |
| 289 | if (Existing.second != Known->second.second) { |
| 290 | if (Diags) { |
| 291 | Diags->Report(diag::err_pch_macro_def_undef) |
| 292 | << MacroName << Known->second.second; |
| 293 | } |
| 294 | return true; |
| 295 | } |
| 296 | |
| 297 | // If the macro was #undef'd in both, or if the macro bodies are identical, |
| 298 | // it's fine. |
| 299 | if (Existing.second || Existing.first == Known->second.first) |
| 300 | continue; |
| 301 | |
| 302 | // The macro bodies differ; complain. |
| 303 | if (Diags) { |
| 304 | Diags->Report(diag::err_pch_macro_def_conflict) |
| 305 | << MacroName << Known->second.first << Existing.first; |
| 306 | } |
| 307 | return true; |
| 308 | } |
| 309 | |
| 310 | // Check whether we're using predefines. |
| 311 | if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines) { |
| 312 | if (Diags) { |
| 313 | Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines; |
| 314 | } |
| 315 | return true; |
| 316 | } |
| 317 | |
| 318 | // Compute the #include and #include_macros lines we need. |
| 319 | for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) { |
| 320 | StringRef File = ExistingPPOpts.Includes[I]; |
| 321 | if (File == ExistingPPOpts.ImplicitPCHInclude) |
| 322 | continue; |
| 323 | |
| 324 | if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File) |
| 325 | != PPOpts.Includes.end()) |
| 326 | continue; |
| 327 | |
| 328 | SuggestedPredefines += "#include \""; |
| 329 | SuggestedPredefines += |
| 330 | HeaderSearch::NormalizeDashIncludePath(File, FileMgr); |
| 331 | SuggestedPredefines += "\"\n"; |
| 332 | } |
| 333 | |
| 334 | for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) { |
| 335 | StringRef File = ExistingPPOpts.MacroIncludes[I]; |
| 336 | if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(), |
| 337 | File) |
| 338 | != PPOpts.MacroIncludes.end()) |
| 339 | continue; |
| 340 | |
| 341 | SuggestedPredefines += "#__include_macros \""; |
| 342 | SuggestedPredefines += |
| 343 | HeaderSearch::NormalizeDashIncludePath(File, FileMgr); |
| 344 | SuggestedPredefines += "\"\n##\n"; |
| 345 | } |
| 346 | |
| 347 | return false; |
| 348 | } |
| 349 | |
| 350 | bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, |
| 351 | bool Complain, |
| 352 | std::string &SuggestedPredefines) { |
| 353 | const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts(); |
| 354 | |
| 355 | return checkPreprocessorOptions(PPOpts, ExistingPPOpts, |
| 356 | Complain? &Reader.Diags : 0, |
| 357 | PP.getFileManager(), |
| 358 | SuggestedPredefines); |
| 359 | } |
| 360 | |
| 361 | void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI, |
| 362 | unsigned ID) { |
| 363 | PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID); |
| 364 | ++NumHeaderInfos; |
| 365 | } |
| 366 | |
| 367 | void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) { |
| 368 | PP.setCounterValue(Value); |
| 369 | } |
| 370 | |
| 371 | //===----------------------------------------------------------------------===// |
| 372 | // AST reader implementation |
| 373 | //===----------------------------------------------------------------------===// |
| 374 | |
| 375 | void |
| 376 | ASTReader::setDeserializationListener(ASTDeserializationListener *Listener) { |
| 377 | DeserializationListener = Listener; |
| 378 | } |
| 379 | |
| 380 | |
| 381 | |
| 382 | unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) { |
| 383 | return serialization::ComputeHash(Sel); |
| 384 | } |
| 385 | |
| 386 | |
| 387 | std::pair<unsigned, unsigned> |
| 388 | ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 389 | using namespace clang::io; |
| 390 | unsigned KeyLen = ReadUnalignedLE16(d); |
| 391 | unsigned DataLen = ReadUnalignedLE16(d); |
| 392 | return std::make_pair(KeyLen, DataLen); |
| 393 | } |
| 394 | |
| 395 | ASTSelectorLookupTrait::internal_key_type |
| 396 | ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) { |
| 397 | using namespace clang::io; |
| 398 | SelectorTable &SelTable = Reader.getContext().Selectors; |
| 399 | unsigned N = ReadUnalignedLE16(d); |
| 400 | IdentifierInfo *FirstII |
Douglas Gregor | 8222b89 | 2013-01-21 16:52:34 +0000 | [diff] [blame] | 401 | = Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 402 | if (N == 0) |
| 403 | return SelTable.getNullarySelector(FirstII); |
| 404 | else if (N == 1) |
| 405 | return SelTable.getUnarySelector(FirstII); |
| 406 | |
| 407 | SmallVector<IdentifierInfo *, 16> Args; |
| 408 | Args.push_back(FirstII); |
| 409 | for (unsigned I = 1; I != N; ++I) |
Douglas Gregor | 8222b89 | 2013-01-21 16:52:34 +0000 | [diff] [blame] | 410 | Args.push_back(Reader.getLocalIdentifier(F, ReadUnalignedLE32(d))); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 411 | |
| 412 | return SelTable.getSelector(N, Args.data()); |
| 413 | } |
| 414 | |
| 415 | ASTSelectorLookupTrait::data_type |
| 416 | ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d, |
| 417 | unsigned DataLen) { |
| 418 | using namespace clang::io; |
| 419 | |
| 420 | data_type Result; |
| 421 | |
| 422 | Result.ID = Reader.getGlobalSelectorID(F, ReadUnalignedLE32(d)); |
| 423 | unsigned NumInstanceMethods = ReadUnalignedLE16(d); |
| 424 | unsigned NumFactoryMethods = ReadUnalignedLE16(d); |
| 425 | |
| 426 | // Load instance methods |
| 427 | for (unsigned I = 0; I != NumInstanceMethods; ++I) { |
| 428 | if (ObjCMethodDecl *Method |
| 429 | = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d))) |
| 430 | Result.Instance.push_back(Method); |
| 431 | } |
| 432 | |
| 433 | // Load factory methods |
| 434 | for (unsigned I = 0; I != NumFactoryMethods; ++I) { |
| 435 | if (ObjCMethodDecl *Method |
| 436 | = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d))) |
| 437 | Result.Factory.push_back(Method); |
| 438 | } |
| 439 | |
| 440 | return Result; |
| 441 | } |
| 442 | |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 443 | unsigned ASTIdentifierLookupTraitBase::ComputeHash(const internal_key_type& a) { |
| 444 | return llvm::HashString(a); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | std::pair<unsigned, unsigned> |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 448 | ASTIdentifierLookupTraitBase::ReadKeyDataLength(const unsigned char*& d) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 449 | using namespace clang::io; |
| 450 | unsigned DataLen = ReadUnalignedLE16(d); |
| 451 | unsigned KeyLen = ReadUnalignedLE16(d); |
| 452 | return std::make_pair(KeyLen, DataLen); |
| 453 | } |
| 454 | |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 455 | ASTIdentifierLookupTraitBase::internal_key_type |
| 456 | ASTIdentifierLookupTraitBase::ReadKey(const unsigned char* d, unsigned n) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 457 | assert(n >= 2 && d[n-1] == '\0'); |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 458 | return StringRef((const char*) d, n-1); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k, |
| 462 | const unsigned char* d, |
| 463 | unsigned DataLen) { |
| 464 | using namespace clang::io; |
| 465 | unsigned RawID = ReadUnalignedLE32(d); |
| 466 | bool IsInteresting = RawID & 0x01; |
| 467 | |
| 468 | // Wipe out the "is interesting" bit. |
| 469 | RawID = RawID >> 1; |
| 470 | |
| 471 | IdentID ID = Reader.getGlobalIdentifierID(F, RawID); |
| 472 | if (!IsInteresting) { |
| 473 | // For uninteresting identifiers, just build the IdentifierInfo |
| 474 | // and associate it with the persistent ID. |
| 475 | IdentifierInfo *II = KnownII; |
| 476 | if (!II) { |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 477 | II = &Reader.getIdentifierTable().getOwn(k); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 478 | KnownII = II; |
| 479 | } |
| 480 | Reader.SetIdentifierInfo(ID, II); |
| 481 | II->setIsFromAST(); |
| 482 | Reader.markIdentifierUpToDate(II); |
| 483 | return II; |
| 484 | } |
| 485 | |
| 486 | unsigned ObjCOrBuiltinID = ReadUnalignedLE16(d); |
| 487 | unsigned Bits = ReadUnalignedLE16(d); |
| 488 | bool CPlusPlusOperatorKeyword = Bits & 0x01; |
| 489 | Bits >>= 1; |
| 490 | bool HasRevertedTokenIDToIdentifier = Bits & 0x01; |
| 491 | Bits >>= 1; |
| 492 | bool Poisoned = Bits & 0x01; |
| 493 | Bits >>= 1; |
| 494 | bool ExtensionToken = Bits & 0x01; |
| 495 | Bits >>= 1; |
| 496 | bool hadMacroDefinition = Bits & 0x01; |
| 497 | Bits >>= 1; |
| 498 | |
| 499 | assert(Bits == 0 && "Extra bits in the identifier?"); |
| 500 | DataLen -= 8; |
| 501 | |
| 502 | // Build the IdentifierInfo itself and link the identifier ID with |
| 503 | // the new IdentifierInfo. |
| 504 | IdentifierInfo *II = KnownII; |
| 505 | if (!II) { |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 506 | II = &Reader.getIdentifierTable().getOwn(StringRef(k)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 507 | KnownII = II; |
| 508 | } |
| 509 | Reader.markIdentifierUpToDate(II); |
| 510 | II->setIsFromAST(); |
| 511 | |
| 512 | // Set or check the various bits in the IdentifierInfo structure. |
| 513 | // Token IDs are read-only. |
| 514 | if (HasRevertedTokenIDToIdentifier) |
| 515 | II->RevertTokenIDToIdentifier(); |
| 516 | II->setObjCOrBuiltinID(ObjCOrBuiltinID); |
| 517 | assert(II->isExtensionToken() == ExtensionToken && |
| 518 | "Incorrect extension token flag"); |
| 519 | (void)ExtensionToken; |
| 520 | if (Poisoned) |
| 521 | II->setIsPoisoned(true); |
| 522 | assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword && |
| 523 | "Incorrect C++ operator keyword flag"); |
| 524 | (void)CPlusPlusOperatorKeyword; |
| 525 | |
| 526 | // If this identifier is a macro, deserialize the macro |
| 527 | // definition. |
| 528 | if (hadMacroDefinition) { |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 529 | SmallVector<MacroID, 4> MacroIDs; |
| 530 | while (uint32_t LocalID = ReadUnalignedLE32(d)) { |
| 531 | MacroIDs.push_back(Reader.getGlobalMacroID(F, LocalID)); |
| 532 | DataLen -= 4; |
| 533 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 534 | DataLen -= 4; |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 535 | Reader.setIdentifierIsMacro(II, MacroIDs); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 536 | } |
| 537 | |
| 538 | Reader.SetIdentifierInfo(ID, II); |
| 539 | |
| 540 | // Read all of the declarations visible at global scope with this |
| 541 | // name. |
| 542 | if (DataLen > 0) { |
| 543 | SmallVector<uint32_t, 4> DeclIDs; |
| 544 | for (; DataLen > 0; DataLen -= 4) |
| 545 | DeclIDs.push_back(Reader.getGlobalDeclID(F, ReadUnalignedLE32(d))); |
| 546 | Reader.SetGloballyVisibleDecls(II, DeclIDs); |
| 547 | } |
| 548 | |
| 549 | return II; |
| 550 | } |
| 551 | |
| 552 | unsigned |
| 553 | ASTDeclContextNameLookupTrait::ComputeHash(const DeclNameKey &Key) const { |
| 554 | llvm::FoldingSetNodeID ID; |
| 555 | ID.AddInteger(Key.Kind); |
| 556 | |
| 557 | switch (Key.Kind) { |
| 558 | case DeclarationName::Identifier: |
| 559 | case DeclarationName::CXXLiteralOperatorName: |
| 560 | ID.AddString(((IdentifierInfo*)Key.Data)->getName()); |
| 561 | break; |
| 562 | case DeclarationName::ObjCZeroArgSelector: |
| 563 | case DeclarationName::ObjCOneArgSelector: |
| 564 | case DeclarationName::ObjCMultiArgSelector: |
| 565 | ID.AddInteger(serialization::ComputeHash(Selector(Key.Data))); |
| 566 | break; |
| 567 | case DeclarationName::CXXOperatorName: |
| 568 | ID.AddInteger((OverloadedOperatorKind)Key.Data); |
| 569 | break; |
| 570 | case DeclarationName::CXXConstructorName: |
| 571 | case DeclarationName::CXXDestructorName: |
| 572 | case DeclarationName::CXXConversionFunctionName: |
| 573 | case DeclarationName::CXXUsingDirective: |
| 574 | break; |
| 575 | } |
| 576 | |
| 577 | return ID.ComputeHash(); |
| 578 | } |
| 579 | |
| 580 | ASTDeclContextNameLookupTrait::internal_key_type |
| 581 | ASTDeclContextNameLookupTrait::GetInternalKey( |
| 582 | const external_key_type& Name) const { |
| 583 | DeclNameKey Key; |
| 584 | Key.Kind = Name.getNameKind(); |
| 585 | switch (Name.getNameKind()) { |
| 586 | case DeclarationName::Identifier: |
| 587 | Key.Data = (uint64_t)Name.getAsIdentifierInfo(); |
| 588 | break; |
| 589 | case DeclarationName::ObjCZeroArgSelector: |
| 590 | case DeclarationName::ObjCOneArgSelector: |
| 591 | case DeclarationName::ObjCMultiArgSelector: |
| 592 | Key.Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr(); |
| 593 | break; |
| 594 | case DeclarationName::CXXOperatorName: |
| 595 | Key.Data = Name.getCXXOverloadedOperator(); |
| 596 | break; |
| 597 | case DeclarationName::CXXLiteralOperatorName: |
| 598 | Key.Data = (uint64_t)Name.getCXXLiteralIdentifier(); |
| 599 | break; |
| 600 | case DeclarationName::CXXConstructorName: |
| 601 | case DeclarationName::CXXDestructorName: |
| 602 | case DeclarationName::CXXConversionFunctionName: |
| 603 | case DeclarationName::CXXUsingDirective: |
| 604 | Key.Data = 0; |
| 605 | break; |
| 606 | } |
| 607 | |
| 608 | return Key; |
| 609 | } |
| 610 | |
| 611 | std::pair<unsigned, unsigned> |
| 612 | ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 613 | using namespace clang::io; |
| 614 | unsigned KeyLen = ReadUnalignedLE16(d); |
| 615 | unsigned DataLen = ReadUnalignedLE16(d); |
| 616 | return std::make_pair(KeyLen, DataLen); |
| 617 | } |
| 618 | |
| 619 | ASTDeclContextNameLookupTrait::internal_key_type |
| 620 | ASTDeclContextNameLookupTrait::ReadKey(const unsigned char* d, unsigned) { |
| 621 | using namespace clang::io; |
| 622 | |
| 623 | DeclNameKey Key; |
| 624 | Key.Kind = (DeclarationName::NameKind)*d++; |
| 625 | switch (Key.Kind) { |
| 626 | case DeclarationName::Identifier: |
| 627 | Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)); |
| 628 | break; |
| 629 | case DeclarationName::ObjCZeroArgSelector: |
| 630 | case DeclarationName::ObjCOneArgSelector: |
| 631 | case DeclarationName::ObjCMultiArgSelector: |
| 632 | Key.Data = |
| 633 | (uint64_t)Reader.getLocalSelector(F, ReadUnalignedLE32(d)) |
| 634 | .getAsOpaquePtr(); |
| 635 | break; |
| 636 | case DeclarationName::CXXOperatorName: |
| 637 | Key.Data = *d++; // OverloadedOperatorKind |
| 638 | break; |
| 639 | case DeclarationName::CXXLiteralOperatorName: |
| 640 | Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)); |
| 641 | break; |
| 642 | case DeclarationName::CXXConstructorName: |
| 643 | case DeclarationName::CXXDestructorName: |
| 644 | case DeclarationName::CXXConversionFunctionName: |
| 645 | case DeclarationName::CXXUsingDirective: |
| 646 | Key.Data = 0; |
| 647 | break; |
| 648 | } |
| 649 | |
| 650 | return Key; |
| 651 | } |
| 652 | |
| 653 | ASTDeclContextNameLookupTrait::data_type |
| 654 | ASTDeclContextNameLookupTrait::ReadData(internal_key_type, |
| 655 | const unsigned char* d, |
| 656 | unsigned DataLen) { |
| 657 | using namespace clang::io; |
| 658 | unsigned NumDecls = ReadUnalignedLE16(d); |
Argyrios Kyrtzidis | e8b61cf | 2013-01-11 22:29:49 +0000 | [diff] [blame] | 659 | LE32DeclID *Start = reinterpret_cast<LE32DeclID *>( |
| 660 | const_cast<unsigned char *>(d)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 661 | return std::make_pair(Start, Start + NumDecls); |
| 662 | } |
| 663 | |
| 664 | bool ASTReader::ReadDeclContextStorage(ModuleFile &M, |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 665 | BitstreamCursor &Cursor, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 666 | const std::pair<uint64_t, uint64_t> &Offsets, |
| 667 | DeclContextInfo &Info) { |
| 668 | SavedStreamPosition SavedPosition(Cursor); |
| 669 | // First the lexical decls. |
| 670 | if (Offsets.first != 0) { |
| 671 | Cursor.JumpToBit(Offsets.first); |
| 672 | |
| 673 | RecordData Record; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 674 | StringRef Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 675 | unsigned Code = Cursor.ReadCode(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 676 | unsigned RecCode = Cursor.readRecord(Code, Record, &Blob); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 677 | if (RecCode != DECL_CONTEXT_LEXICAL) { |
| 678 | Error("Expected lexical block"); |
| 679 | return true; |
| 680 | } |
| 681 | |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 682 | Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair*>(Blob.data()); |
| 683 | Info.NumLexicalDecls = Blob.size() / sizeof(KindDeclIDPair); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 684 | } |
| 685 | |
| 686 | // Now the lookup table. |
| 687 | if (Offsets.second != 0) { |
| 688 | Cursor.JumpToBit(Offsets.second); |
| 689 | |
| 690 | RecordData Record; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 691 | StringRef Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 692 | unsigned Code = Cursor.ReadCode(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 693 | unsigned RecCode = Cursor.readRecord(Code, Record, &Blob); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 694 | if (RecCode != DECL_CONTEXT_VISIBLE) { |
| 695 | Error("Expected visible lookup table block"); |
| 696 | return true; |
| 697 | } |
| 698 | Info.NameLookupTableData |
| 699 | = ASTDeclContextNameLookupTable::Create( |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 700 | (const unsigned char *)Blob.data() + Record[0], |
| 701 | (const unsigned char *)Blob.data(), |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 702 | ASTDeclContextNameLookupTrait(*this, M)); |
| 703 | } |
| 704 | |
| 705 | return false; |
| 706 | } |
| 707 | |
| 708 | void ASTReader::Error(StringRef Msg) { |
| 709 | Error(diag::err_fe_pch_malformed, Msg); |
| 710 | } |
| 711 | |
| 712 | void ASTReader::Error(unsigned DiagID, |
| 713 | StringRef Arg1, StringRef Arg2) { |
| 714 | if (Diags.isDiagnosticInFlight()) |
| 715 | Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2); |
| 716 | else |
| 717 | Diag(DiagID) << Arg1 << Arg2; |
| 718 | } |
| 719 | |
| 720 | //===----------------------------------------------------------------------===// |
| 721 | // Source Manager Deserialization |
| 722 | //===----------------------------------------------------------------------===// |
| 723 | |
| 724 | /// \brief Read the line table in the source manager block. |
| 725 | /// \returns true if there was an error. |
| 726 | bool ASTReader::ParseLineTable(ModuleFile &F, |
| 727 | SmallVectorImpl<uint64_t> &Record) { |
| 728 | unsigned Idx = 0; |
| 729 | LineTableInfo &LineTable = SourceMgr.getLineTable(); |
| 730 | |
| 731 | // Parse the file names |
| 732 | std::map<int, int> FileIDs; |
| 733 | for (int I = 0, N = Record[Idx++]; I != N; ++I) { |
| 734 | // Extract the file name |
| 735 | unsigned FilenameLen = Record[Idx++]; |
| 736 | std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen); |
| 737 | Idx += FilenameLen; |
| 738 | MaybeAddSystemRootToFilename(F, Filename); |
| 739 | FileIDs[I] = LineTable.getLineTableFilenameID(Filename); |
| 740 | } |
| 741 | |
| 742 | // Parse the line entries |
| 743 | std::vector<LineEntry> Entries; |
| 744 | while (Idx < Record.size()) { |
| 745 | int FID = Record[Idx++]; |
| 746 | assert(FID >= 0 && "Serialized line entries for non-local file."); |
| 747 | // Remap FileID from 1-based old view. |
| 748 | FID += F.SLocEntryBaseID - 1; |
| 749 | |
| 750 | // Extract the line entries |
| 751 | unsigned NumEntries = Record[Idx++]; |
| 752 | assert(NumEntries && "Numentries is 00000"); |
| 753 | Entries.clear(); |
| 754 | Entries.reserve(NumEntries); |
| 755 | for (unsigned I = 0; I != NumEntries; ++I) { |
| 756 | unsigned FileOffset = Record[Idx++]; |
| 757 | unsigned LineNo = Record[Idx++]; |
| 758 | int FilenameID = FileIDs[Record[Idx++]]; |
| 759 | SrcMgr::CharacteristicKind FileKind |
| 760 | = (SrcMgr::CharacteristicKind)Record[Idx++]; |
| 761 | unsigned IncludeOffset = Record[Idx++]; |
| 762 | Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID, |
| 763 | FileKind, IncludeOffset)); |
| 764 | } |
| 765 | LineTable.AddEntry(FileID::get(FID), Entries); |
| 766 | } |
| 767 | |
| 768 | return false; |
| 769 | } |
| 770 | |
| 771 | /// \brief Read a source manager block |
| 772 | bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) { |
| 773 | using namespace SrcMgr; |
| 774 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 775 | BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 776 | |
| 777 | // Set the source-location entry cursor to the current position in |
| 778 | // the stream. This cursor will be used to read the contents of the |
| 779 | // source manager block initially, and then lazily read |
| 780 | // source-location entries as needed. |
| 781 | SLocEntryCursor = F.Stream; |
| 782 | |
| 783 | // The stream itself is going to skip over the source manager block. |
| 784 | if (F.Stream.SkipBlock()) { |
| 785 | Error("malformed block record in AST file"); |
| 786 | return true; |
| 787 | } |
| 788 | |
| 789 | // Enter the source manager block. |
| 790 | if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) { |
| 791 | Error("malformed source manager block record in AST file"); |
| 792 | return true; |
| 793 | } |
| 794 | |
| 795 | RecordData Record; |
| 796 | while (true) { |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 797 | llvm::BitstreamEntry E = SLocEntryCursor.advanceSkippingSubblocks(); |
| 798 | |
| 799 | switch (E.Kind) { |
| 800 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. |
| 801 | case llvm::BitstreamEntry::Error: |
| 802 | Error("malformed block record in AST file"); |
| 803 | return true; |
| 804 | case llvm::BitstreamEntry::EndBlock: |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 805 | return false; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 806 | case llvm::BitstreamEntry::Record: |
| 807 | // The interesting case. |
| 808 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 809 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 810 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 811 | // Read a record. |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 812 | Record.clear(); |
Chris Lattner | 125eb3e | 2013-01-21 18:28:26 +0000 | [diff] [blame] | 813 | StringRef Blob; |
| 814 | switch (SLocEntryCursor.readRecord(E.ID, Record, &Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 815 | default: // Default behavior: ignore. |
| 816 | break; |
| 817 | |
| 818 | case SM_SLOC_FILE_ENTRY: |
| 819 | case SM_SLOC_BUFFER_ENTRY: |
| 820 | case SM_SLOC_EXPANSION_ENTRY: |
| 821 | // Once we hit one of the source location entries, we're done. |
| 822 | return false; |
| 823 | } |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | /// \brief If a header file is not found at the path that we expect it to be |
| 828 | /// and the PCH file was moved from its original location, try to resolve the |
| 829 | /// file by assuming that header+PCH were moved together and the header is in |
| 830 | /// the same place relative to the PCH. |
| 831 | static std::string |
| 832 | resolveFileRelativeToOriginalDir(const std::string &Filename, |
| 833 | const std::string &OriginalDir, |
| 834 | const std::string &CurrDir) { |
| 835 | assert(OriginalDir != CurrDir && |
| 836 | "No point trying to resolve the file if the PCH dir didn't change"); |
| 837 | using namespace llvm::sys; |
| 838 | SmallString<128> filePath(Filename); |
| 839 | fs::make_absolute(filePath); |
| 840 | assert(path::is_absolute(OriginalDir)); |
| 841 | SmallString<128> currPCHPath(CurrDir); |
| 842 | |
| 843 | path::const_iterator fileDirI = path::begin(path::parent_path(filePath)), |
| 844 | fileDirE = path::end(path::parent_path(filePath)); |
| 845 | path::const_iterator origDirI = path::begin(OriginalDir), |
| 846 | origDirE = path::end(OriginalDir); |
| 847 | // Skip the common path components from filePath and OriginalDir. |
| 848 | while (fileDirI != fileDirE && origDirI != origDirE && |
| 849 | *fileDirI == *origDirI) { |
| 850 | ++fileDirI; |
| 851 | ++origDirI; |
| 852 | } |
| 853 | for (; origDirI != origDirE; ++origDirI) |
| 854 | path::append(currPCHPath, ".."); |
| 855 | path::append(currPCHPath, fileDirI, fileDirE); |
| 856 | path::append(currPCHPath, path::filename(Filename)); |
| 857 | return currPCHPath.str(); |
| 858 | } |
| 859 | |
| 860 | bool ASTReader::ReadSLocEntry(int ID) { |
| 861 | if (ID == 0) |
| 862 | return false; |
| 863 | |
| 864 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { |
| 865 | Error("source location entry ID out-of-range for AST file"); |
| 866 | return true; |
| 867 | } |
| 868 | |
| 869 | ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second; |
| 870 | F->SLocEntryCursor.JumpToBit(F->SLocEntryOffsets[ID - F->SLocEntryBaseID]); |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 871 | BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 872 | unsigned BaseOffset = F->SLocEntryBaseOffset; |
| 873 | |
| 874 | ++NumSLocEntriesRead; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 875 | llvm::BitstreamEntry Entry = SLocEntryCursor.advance(); |
| 876 | if (Entry.Kind != llvm::BitstreamEntry::Record) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 877 | Error("incorrectly-formatted source location entry in AST file"); |
| 878 | return true; |
| 879 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 880 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 881 | RecordData Record; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 882 | StringRef Blob; |
| 883 | switch (SLocEntryCursor.readRecord(Entry.ID, Record, &Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 884 | default: |
| 885 | Error("incorrectly-formatted source location entry in AST file"); |
| 886 | return true; |
| 887 | |
| 888 | case SM_SLOC_FILE_ENTRY: { |
| 889 | // We will detect whether a file changed and return 'Failure' for it, but |
| 890 | // we will also try to fail gracefully by setting up the SLocEntry. |
| 891 | unsigned InputID = Record[4]; |
| 892 | InputFile IF = getInputFile(*F, InputID); |
| 893 | const FileEntry *File = IF.getPointer(); |
| 894 | bool OverriddenBuffer = IF.getInt(); |
| 895 | |
| 896 | if (!IF.getPointer()) |
| 897 | return true; |
| 898 | |
| 899 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); |
| 900 | if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) { |
| 901 | // This is the module's main file. |
| 902 | IncludeLoc = getImportLocation(F); |
| 903 | } |
| 904 | SrcMgr::CharacteristicKind |
| 905 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; |
| 906 | FileID FID = SourceMgr.createFileID(File, IncludeLoc, FileCharacter, |
| 907 | ID, BaseOffset + Record[0]); |
| 908 | SrcMgr::FileInfo &FileInfo = |
| 909 | const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile()); |
| 910 | FileInfo.NumCreatedFIDs = Record[5]; |
| 911 | if (Record[3]) |
| 912 | FileInfo.setHasLineDirectives(); |
| 913 | |
| 914 | const DeclID *FirstDecl = F->FileSortedDecls + Record[6]; |
| 915 | unsigned NumFileDecls = Record[7]; |
| 916 | if (NumFileDecls) { |
| 917 | assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?"); |
| 918 | FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl, |
| 919 | NumFileDecls)); |
| 920 | } |
| 921 | |
| 922 | const SrcMgr::ContentCache *ContentCache |
| 923 | = SourceMgr.getOrCreateContentCache(File, |
| 924 | /*isSystemFile=*/FileCharacter != SrcMgr::C_User); |
| 925 | if (OverriddenBuffer && !ContentCache->BufferOverridden && |
| 926 | ContentCache->ContentsEntry == ContentCache->OrigEntry) { |
| 927 | unsigned Code = SLocEntryCursor.ReadCode(); |
| 928 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 929 | unsigned RecCode = SLocEntryCursor.readRecord(Code, Record, &Blob); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 930 | |
| 931 | if (RecCode != SM_SLOC_BUFFER_BLOB) { |
| 932 | Error("AST record has invalid code"); |
| 933 | return true; |
| 934 | } |
| 935 | |
| 936 | llvm::MemoryBuffer *Buffer |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 937 | = llvm::MemoryBuffer::getMemBuffer(Blob.drop_back(1), File->getName()); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 938 | SourceMgr.overrideFileContents(File, Buffer); |
| 939 | } |
| 940 | |
| 941 | break; |
| 942 | } |
| 943 | |
| 944 | case SM_SLOC_BUFFER_ENTRY: { |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 945 | const char *Name = Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 946 | unsigned Offset = Record[0]; |
| 947 | SrcMgr::CharacteristicKind |
| 948 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; |
| 949 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); |
| 950 | if (IncludeLoc.isInvalid() && F->Kind == MK_Module) { |
| 951 | IncludeLoc = getImportLocation(F); |
| 952 | } |
| 953 | unsigned Code = SLocEntryCursor.ReadCode(); |
| 954 | Record.clear(); |
| 955 | unsigned RecCode |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 956 | = SLocEntryCursor.readRecord(Code, Record, &Blob); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 957 | |
| 958 | if (RecCode != SM_SLOC_BUFFER_BLOB) { |
| 959 | Error("AST record has invalid code"); |
| 960 | return true; |
| 961 | } |
| 962 | |
| 963 | llvm::MemoryBuffer *Buffer |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 964 | = llvm::MemoryBuffer::getMemBuffer(Blob.drop_back(1), Name); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 965 | SourceMgr.createFileIDForMemBuffer(Buffer, FileCharacter, ID, |
| 966 | BaseOffset + Offset, IncludeLoc); |
| 967 | break; |
| 968 | } |
| 969 | |
| 970 | case SM_SLOC_EXPANSION_ENTRY: { |
| 971 | SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]); |
| 972 | SourceMgr.createExpansionLoc(SpellingLoc, |
| 973 | ReadSourceLocation(*F, Record[2]), |
| 974 | ReadSourceLocation(*F, Record[3]), |
| 975 | Record[4], |
| 976 | ID, |
| 977 | BaseOffset + Record[0]); |
| 978 | break; |
| 979 | } |
| 980 | } |
| 981 | |
| 982 | return false; |
| 983 | } |
| 984 | |
| 985 | std::pair<SourceLocation, StringRef> ASTReader::getModuleImportLoc(int ID) { |
| 986 | if (ID == 0) |
| 987 | return std::make_pair(SourceLocation(), ""); |
| 988 | |
| 989 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { |
| 990 | Error("source location entry ID out-of-range for AST file"); |
| 991 | return std::make_pair(SourceLocation(), ""); |
| 992 | } |
| 993 | |
| 994 | // Find which module file this entry lands in. |
| 995 | ModuleFile *M = GlobalSLocEntryMap.find(-ID)->second; |
| 996 | if (M->Kind != MK_Module) |
| 997 | return std::make_pair(SourceLocation(), ""); |
| 998 | |
| 999 | // FIXME: Can we map this down to a particular submodule? That would be |
| 1000 | // ideal. |
| 1001 | return std::make_pair(M->ImportLoc, llvm::sys::path::stem(M->FileName)); |
| 1002 | } |
| 1003 | |
| 1004 | /// \brief Find the location where the module F is imported. |
| 1005 | SourceLocation ASTReader::getImportLocation(ModuleFile *F) { |
| 1006 | if (F->ImportLoc.isValid()) |
| 1007 | return F->ImportLoc; |
| 1008 | |
| 1009 | // Otherwise we have a PCH. It's considered to be "imported" at the first |
| 1010 | // location of its includer. |
| 1011 | if (F->ImportedBy.empty() || !F->ImportedBy[0]) { |
| 1012 | // Main file is the importer. We assume that it is the first entry in the |
| 1013 | // entry table. We can't ask the manager, because at the time of PCH loading |
| 1014 | // the main file entry doesn't exist yet. |
| 1015 | // The very first entry is the invalid instantiation loc, which takes up |
| 1016 | // offsets 0 and 1. |
| 1017 | return SourceLocation::getFromRawEncoding(2U); |
| 1018 | } |
| 1019 | //return F->Loaders[0]->FirstLoc; |
| 1020 | return F->ImportedBy[0]->FirstLoc; |
| 1021 | } |
| 1022 | |
| 1023 | /// ReadBlockAbbrevs - Enter a subblock of the specified BlockID with the |
| 1024 | /// specified cursor. Read the abbreviations that are at the top of the block |
| 1025 | /// and then leave the cursor pointing into the block. |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1026 | bool ASTReader::ReadBlockAbbrevs(BitstreamCursor &Cursor, unsigned BlockID) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1027 | if (Cursor.EnterSubBlock(BlockID)) { |
| 1028 | Error("malformed block record in AST file"); |
| 1029 | return Failure; |
| 1030 | } |
| 1031 | |
| 1032 | while (true) { |
| 1033 | uint64_t Offset = Cursor.GetCurrentBitNo(); |
| 1034 | unsigned Code = Cursor.ReadCode(); |
| 1035 | |
| 1036 | // We expect all abbrevs to be at the start of the block. |
| 1037 | if (Code != llvm::bitc::DEFINE_ABBREV) { |
| 1038 | Cursor.JumpToBit(Offset); |
| 1039 | return false; |
| 1040 | } |
| 1041 | Cursor.ReadAbbrevRecord(); |
| 1042 | } |
| 1043 | } |
| 1044 | |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1045 | void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset, |
| 1046 | MacroInfo *Hint) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1047 | BitstreamCursor &Stream = F.MacroCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1048 | |
| 1049 | // Keep track of where we are in the stream, then jump back there |
| 1050 | // after reading this macro. |
| 1051 | SavedStreamPosition SavedPosition(Stream); |
| 1052 | |
| 1053 | Stream.JumpToBit(Offset); |
| 1054 | RecordData Record; |
| 1055 | SmallVector<IdentifierInfo*, 16> MacroArgs; |
| 1056 | MacroInfo *Macro = 0; |
| 1057 | |
Douglas Gregor | d3b036e | 2013-01-18 04:34:14 +0000 | [diff] [blame] | 1058 | // RAII object to add the loaded macro information once we're done |
| 1059 | // adding tokens. |
| 1060 | struct AddLoadedMacroInfoRAII { |
| 1061 | Preprocessor &PP; |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1062 | MacroInfo *Hint; |
Douglas Gregor | d3b036e | 2013-01-18 04:34:14 +0000 | [diff] [blame] | 1063 | MacroInfo *MI; |
| 1064 | IdentifierInfo *II; |
| 1065 | |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1066 | AddLoadedMacroInfoRAII(Preprocessor &PP, MacroInfo *Hint) |
| 1067 | : PP(PP), Hint(Hint), MI(), II() { } |
Douglas Gregor | d3b036e | 2013-01-18 04:34:14 +0000 | [diff] [blame] | 1068 | ~AddLoadedMacroInfoRAII( ) { |
| 1069 | if (MI) { |
| 1070 | // Finally, install the macro. |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1071 | PP.addLoadedMacroInfo(II, MI, Hint); |
Douglas Gregor | d3b036e | 2013-01-18 04:34:14 +0000 | [diff] [blame] | 1072 | } |
| 1073 | } |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1074 | } AddLoadedMacroInfo(PP, Hint); |
Douglas Gregor | d3b036e | 2013-01-18 04:34:14 +0000 | [diff] [blame] | 1075 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1076 | while (true) { |
Chris Lattner | 99a5af0 | 2013-01-20 00:00:22 +0000 | [diff] [blame] | 1077 | // Advance to the next record, but if we get to the end of the block, don't |
| 1078 | // pop it (removing all the abbreviations from the cursor) since we want to |
| 1079 | // be able to reseek within the block and read entries. |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1080 | unsigned Flags = BitstreamCursor::AF_DontPopBlockAtEnd; |
Chris Lattner | 99a5af0 | 2013-01-20 00:00:22 +0000 | [diff] [blame] | 1081 | llvm::BitstreamEntry Entry = Stream.advanceSkippingSubblocks(Flags); |
| 1082 | |
| 1083 | switch (Entry.Kind) { |
| 1084 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. |
| 1085 | case llvm::BitstreamEntry::Error: |
| 1086 | Error("malformed block record in AST file"); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1087 | return; |
Chris Lattner | 99a5af0 | 2013-01-20 00:00:22 +0000 | [diff] [blame] | 1088 | case llvm::BitstreamEntry::EndBlock: |
| 1089 | return; |
| 1090 | case llvm::BitstreamEntry::Record: |
| 1091 | // The interesting case. |
| 1092 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1093 | } |
| 1094 | |
| 1095 | // Read a record. |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1096 | Record.clear(); |
| 1097 | PreprocessorRecordTypes RecType = |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1098 | (PreprocessorRecordTypes)Stream.readRecord(Entry.ID, Record); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1099 | switch (RecType) { |
| 1100 | case PP_MACRO_OBJECT_LIKE: |
| 1101 | case PP_MACRO_FUNCTION_LIKE: { |
| 1102 | // If we already have a macro, that means that we've hit the end |
| 1103 | // of the definition of the macro we were looking for. We're |
| 1104 | // done. |
| 1105 | if (Macro) |
| 1106 | return; |
| 1107 | |
| 1108 | IdentifierInfo *II = getLocalIdentifier(F, Record[0]); |
| 1109 | if (II == 0) { |
| 1110 | Error("macro must have a name in AST file"); |
| 1111 | return; |
| 1112 | } |
| 1113 | |
| 1114 | unsigned GlobalID = getGlobalMacroID(F, Record[1]); |
| 1115 | |
| 1116 | // If this macro has already been loaded, don't do so again. |
| 1117 | if (MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS]) |
| 1118 | return; |
| 1119 | |
| 1120 | SubmoduleID GlobalSubmoduleID = getGlobalSubmoduleID(F, Record[2]); |
| 1121 | unsigned NextIndex = 3; |
| 1122 | SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex); |
| 1123 | MacroInfo *MI = PP.AllocateMacroInfo(Loc); |
Argyrios Kyrtzidis | 8169b67 | 2013-01-07 19:16:23 +0000 | [diff] [blame] | 1124 | MI->setDefinitionEndLoc(ReadSourceLocation(F, Record, NextIndex)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1125 | |
| 1126 | // Record this macro. |
| 1127 | MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS] = MI; |
| 1128 | |
| 1129 | SourceLocation UndefLoc = ReadSourceLocation(F, Record, NextIndex); |
| 1130 | if (UndefLoc.isValid()) |
| 1131 | MI->setUndefLoc(UndefLoc); |
| 1132 | |
| 1133 | MI->setIsUsed(Record[NextIndex++]); |
| 1134 | MI->setIsFromAST(); |
| 1135 | |
| 1136 | bool IsPublic = Record[NextIndex++]; |
| 1137 | MI->setVisibility(IsPublic, ReadSourceLocation(F, Record, NextIndex)); |
| 1138 | |
| 1139 | if (RecType == PP_MACRO_FUNCTION_LIKE) { |
| 1140 | // Decode function-like macro info. |
| 1141 | bool isC99VarArgs = Record[NextIndex++]; |
| 1142 | bool isGNUVarArgs = Record[NextIndex++]; |
| 1143 | bool hasCommaPasting = Record[NextIndex++]; |
| 1144 | MacroArgs.clear(); |
| 1145 | unsigned NumArgs = Record[NextIndex++]; |
| 1146 | for (unsigned i = 0; i != NumArgs; ++i) |
| 1147 | MacroArgs.push_back(getLocalIdentifier(F, Record[NextIndex++])); |
| 1148 | |
| 1149 | // Install function-like macro info. |
| 1150 | MI->setIsFunctionLike(); |
| 1151 | if (isC99VarArgs) MI->setIsC99Varargs(); |
| 1152 | if (isGNUVarArgs) MI->setIsGNUVarargs(); |
| 1153 | if (hasCommaPasting) MI->setHasCommaPasting(); |
| 1154 | MI->setArgumentList(MacroArgs.data(), MacroArgs.size(), |
| 1155 | PP.getPreprocessorAllocator()); |
| 1156 | } |
| 1157 | |
| 1158 | if (DeserializationListener) |
| 1159 | DeserializationListener->MacroRead(GlobalID, MI); |
| 1160 | |
| 1161 | // If an update record marked this as undefined, do so now. |
| 1162 | // FIXME: Only if the submodule this update came from is visible? |
| 1163 | MacroUpdatesMap::iterator Update = MacroUpdates.find(GlobalID); |
| 1164 | if (Update != MacroUpdates.end()) { |
| 1165 | if (MI->getUndefLoc().isInvalid()) { |
| 1166 | for (unsigned I = 0, N = Update->second.size(); I != N; ++I) { |
| 1167 | bool Hidden = false; |
| 1168 | if (unsigned SubmoduleID = Update->second[I].first) { |
| 1169 | if (Module *Owner = getSubmodule(SubmoduleID)) { |
| 1170 | if (Owner->NameVisibility == Module::Hidden) { |
| 1171 | // Note that this #undef is hidden. |
| 1172 | Hidden = true; |
| 1173 | |
| 1174 | // Record this hiding for later. |
| 1175 | HiddenNamesMap[Owner].push_back( |
| 1176 | HiddenName(II, MI, Update->second[I].second.UndefLoc)); |
| 1177 | } |
| 1178 | } |
| 1179 | } |
| 1180 | |
| 1181 | if (!Hidden) { |
| 1182 | MI->setUndefLoc(Update->second[I].second.UndefLoc); |
| 1183 | if (PPMutationListener *Listener = PP.getPPMutationListener()) |
| 1184 | Listener->UndefinedMacro(MI); |
| 1185 | break; |
| 1186 | } |
| 1187 | } |
| 1188 | } |
| 1189 | MacroUpdates.erase(Update); |
| 1190 | } |
| 1191 | |
| 1192 | // Determine whether this macro definition is visible. |
| 1193 | bool Hidden = !MI->isPublic(); |
| 1194 | if (!Hidden && GlobalSubmoduleID) { |
| 1195 | if (Module *Owner = getSubmodule(GlobalSubmoduleID)) { |
| 1196 | if (Owner->NameVisibility == Module::Hidden) { |
| 1197 | // The owning module is not visible, and this macro definition |
| 1198 | // should not be, either. |
| 1199 | Hidden = true; |
| 1200 | |
| 1201 | // Note that this macro definition was hidden because its owning |
| 1202 | // module is not yet visible. |
| 1203 | HiddenNamesMap[Owner].push_back(HiddenName(II, MI)); |
| 1204 | } |
| 1205 | } |
| 1206 | } |
| 1207 | MI->setHidden(Hidden); |
| 1208 | |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1209 | // Make sure we install the macro once we're done. |
| 1210 | AddLoadedMacroInfo.MI = MI; |
| 1211 | AddLoadedMacroInfo.II = II; |
Douglas Gregor | d3b036e | 2013-01-18 04:34:14 +0000 | [diff] [blame] | 1212 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1213 | // Remember that we saw this macro last so that we add the tokens that |
| 1214 | // form its body to it. |
| 1215 | Macro = MI; |
| 1216 | |
| 1217 | if (NextIndex + 1 == Record.size() && PP.getPreprocessingRecord() && |
| 1218 | Record[NextIndex]) { |
| 1219 | // We have a macro definition. Register the association |
| 1220 | PreprocessedEntityID |
| 1221 | GlobalID = getGlobalPreprocessedEntityID(F, Record[NextIndex]); |
| 1222 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); |
| 1223 | PPRec.RegisterMacroDefinition(Macro, |
| 1224 | PPRec.getPPEntityID(GlobalID-1, /*isLoaded=*/true)); |
| 1225 | } |
| 1226 | |
| 1227 | ++NumMacrosRead; |
| 1228 | break; |
| 1229 | } |
| 1230 | |
| 1231 | case PP_TOKEN: { |
| 1232 | // If we see a TOKEN before a PP_MACRO_*, then the file is |
| 1233 | // erroneous, just pretend we didn't see this. |
| 1234 | if (Macro == 0) break; |
| 1235 | |
| 1236 | Token Tok; |
| 1237 | Tok.startToken(); |
| 1238 | Tok.setLocation(ReadSourceLocation(F, Record[0])); |
| 1239 | Tok.setLength(Record[1]); |
| 1240 | if (IdentifierInfo *II = getLocalIdentifier(F, Record[2])) |
| 1241 | Tok.setIdentifierInfo(II); |
| 1242 | Tok.setKind((tok::TokenKind)Record[3]); |
| 1243 | Tok.setFlag((Token::TokenFlags)Record[4]); |
| 1244 | Macro->AddTokenToBody(Tok); |
| 1245 | break; |
| 1246 | } |
| 1247 | } |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | PreprocessedEntityID |
| 1252 | ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M, unsigned LocalID) const { |
| 1253 | ContinuousRangeMap<uint32_t, int, 2>::const_iterator |
| 1254 | I = M.PreprocessedEntityRemap.find(LocalID - NUM_PREDEF_PP_ENTITY_IDS); |
| 1255 | assert(I != M.PreprocessedEntityRemap.end() |
| 1256 | && "Invalid index into preprocessed entity index remap"); |
| 1257 | |
| 1258 | return LocalID + I->second; |
| 1259 | } |
| 1260 | |
| 1261 | unsigned HeaderFileInfoTrait::ComputeHash(const char *path) { |
| 1262 | return llvm::HashString(llvm::sys::path::filename(path)); |
| 1263 | } |
| 1264 | |
| 1265 | HeaderFileInfoTrait::internal_key_type |
| 1266 | HeaderFileInfoTrait::GetInternalKey(const char *path) { return path; } |
| 1267 | |
| 1268 | bool HeaderFileInfoTrait::EqualKey(internal_key_type a, internal_key_type b) { |
| 1269 | if (strcmp(a, b) == 0) |
| 1270 | return true; |
| 1271 | |
| 1272 | if (llvm::sys::path::filename(a) != llvm::sys::path::filename(b)) |
| 1273 | return false; |
| 1274 | |
| 1275 | // Determine whether the actual files are equivalent. |
| 1276 | bool Result = false; |
| 1277 | if (llvm::sys::fs::equivalent(a, b, Result)) |
| 1278 | return false; |
| 1279 | |
| 1280 | return Result; |
| 1281 | } |
| 1282 | |
| 1283 | std::pair<unsigned, unsigned> |
| 1284 | HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 1285 | unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d); |
| 1286 | unsigned DataLen = (unsigned) *d++; |
| 1287 | return std::make_pair(KeyLen + 1, DataLen); |
| 1288 | } |
| 1289 | |
| 1290 | HeaderFileInfoTrait::data_type |
| 1291 | HeaderFileInfoTrait::ReadData(const internal_key_type, const unsigned char *d, |
| 1292 | unsigned DataLen) { |
| 1293 | const unsigned char *End = d + DataLen; |
| 1294 | using namespace clang::io; |
| 1295 | HeaderFileInfo HFI; |
| 1296 | unsigned Flags = *d++; |
| 1297 | HFI.isImport = (Flags >> 5) & 0x01; |
| 1298 | HFI.isPragmaOnce = (Flags >> 4) & 0x01; |
| 1299 | HFI.DirInfo = (Flags >> 2) & 0x03; |
| 1300 | HFI.Resolved = (Flags >> 1) & 0x01; |
| 1301 | HFI.IndexHeaderMapHeader = Flags & 0x01; |
| 1302 | HFI.NumIncludes = ReadUnalignedLE16(d); |
| 1303 | HFI.ControllingMacroID = Reader.getGlobalIdentifierID(M, |
| 1304 | ReadUnalignedLE32(d)); |
| 1305 | if (unsigned FrameworkOffset = ReadUnalignedLE32(d)) { |
| 1306 | // The framework offset is 1 greater than the actual offset, |
| 1307 | // since 0 is used as an indicator for "no framework name". |
| 1308 | StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1); |
| 1309 | HFI.Framework = HS->getUniqueFrameworkName(FrameworkName); |
| 1310 | } |
| 1311 | |
| 1312 | assert(End == d && "Wrong data length in HeaderFileInfo deserialization"); |
| 1313 | (void)End; |
| 1314 | |
| 1315 | // This HeaderFileInfo was externally loaded. |
| 1316 | HFI.External = true; |
| 1317 | return HFI; |
| 1318 | } |
| 1319 | |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1320 | void ASTReader::setIdentifierIsMacro(IdentifierInfo *II, ArrayRef<MacroID> IDs){ |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1321 | II->setHadMacroDefinition(true); |
| 1322 | assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard"); |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 1323 | PendingMacroIDs[II].append(IDs.begin(), IDs.end()); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1324 | } |
| 1325 | |
| 1326 | void ASTReader::ReadDefinedMacros() { |
| 1327 | // Note that we are loading defined macros. |
| 1328 | Deserializing Macros(this); |
| 1329 | |
| 1330 | for (ModuleReverseIterator I = ModuleMgr.rbegin(), |
| 1331 | E = ModuleMgr.rend(); I != E; ++I) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1332 | BitstreamCursor &MacroCursor = (*I)->MacroCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1333 | |
| 1334 | // If there was no preprocessor block, skip this file. |
| 1335 | if (!MacroCursor.getBitStreamReader()) |
| 1336 | continue; |
| 1337 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1338 | BitstreamCursor Cursor = MacroCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1339 | Cursor.JumpToBit((*I)->MacroStartOffset); |
| 1340 | |
| 1341 | RecordData Record; |
| 1342 | while (true) { |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1343 | llvm::BitstreamEntry E = Cursor.advanceSkippingSubblocks(); |
| 1344 | |
| 1345 | switch (E.Kind) { |
| 1346 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. |
| 1347 | case llvm::BitstreamEntry::Error: |
| 1348 | Error("malformed block record in AST file"); |
| 1349 | return; |
| 1350 | case llvm::BitstreamEntry::EndBlock: |
| 1351 | goto NextCursor; |
| 1352 | |
| 1353 | case llvm::BitstreamEntry::Record: |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1354 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1355 | switch (Cursor.readRecord(E.ID, Record)) { |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1356 | default: // Default behavior: ignore. |
| 1357 | break; |
| 1358 | |
| 1359 | case PP_MACRO_OBJECT_LIKE: |
| 1360 | case PP_MACRO_FUNCTION_LIKE: |
| 1361 | getLocalIdentifier(**I, Record[0]); |
| 1362 | break; |
| 1363 | |
| 1364 | case PP_TOKEN: |
| 1365 | // Ignore tokens. |
| 1366 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1367 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1368 | break; |
| 1369 | } |
| 1370 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1371 | NextCursor: ; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | namespace { |
| 1376 | /// \brief Visitor class used to look up identifirs in an AST file. |
| 1377 | class IdentifierLookupVisitor { |
| 1378 | StringRef Name; |
| 1379 | unsigned PriorGeneration; |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 1380 | unsigned &NumIdentifierLookups; |
| 1381 | unsigned &NumIdentifierLookupHits; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1382 | IdentifierInfo *Found; |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 1383 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1384 | public: |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 1385 | IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration, |
| 1386 | unsigned &NumIdentifierLookups, |
| 1387 | unsigned &NumIdentifierLookupHits) |
| 1388 | : Name(Name), PriorGeneration(PriorGeneration), |
| 1389 | NumIdentifierLookups(NumIdentifierLookups), |
| 1390 | NumIdentifierLookupHits(NumIdentifierLookupHits), |
| 1391 | Found() |
| 1392 | { |
| 1393 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1394 | |
| 1395 | static bool visit(ModuleFile &M, void *UserData) { |
| 1396 | IdentifierLookupVisitor *This |
| 1397 | = static_cast<IdentifierLookupVisitor *>(UserData); |
| 1398 | |
| 1399 | // If we've already searched this module file, skip it now. |
| 1400 | if (M.Generation <= This->PriorGeneration) |
| 1401 | return true; |
| 1402 | |
| 1403 | ASTIdentifierLookupTable *IdTable |
| 1404 | = (ASTIdentifierLookupTable *)M.IdentifierLookupTable; |
| 1405 | if (!IdTable) |
| 1406 | return false; |
| 1407 | |
| 1408 | ASTIdentifierLookupTrait Trait(IdTable->getInfoObj().getReader(), |
| 1409 | M, This->Found); |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 1410 | ++This->NumIdentifierLookups; |
| 1411 | ASTIdentifierLookupTable::iterator Pos = IdTable->find(This->Name,&Trait); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1412 | if (Pos == IdTable->end()) |
| 1413 | return false; |
| 1414 | |
| 1415 | // Dereferencing the iterator has the effect of building the |
| 1416 | // IdentifierInfo node and populating it with the various |
| 1417 | // declarations it needs. |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 1418 | ++This->NumIdentifierLookupHits; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1419 | This->Found = *Pos; |
| 1420 | return true; |
| 1421 | } |
| 1422 | |
| 1423 | // \brief Retrieve the identifier info found within the module |
| 1424 | // files. |
| 1425 | IdentifierInfo *getIdentifierInfo() const { return Found; } |
| 1426 | }; |
| 1427 | } |
| 1428 | |
| 1429 | void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) { |
| 1430 | // Note that we are loading an identifier. |
| 1431 | Deserializing AnIdentifier(this); |
| 1432 | |
| 1433 | unsigned PriorGeneration = 0; |
| 1434 | if (getContext().getLangOpts().Modules) |
| 1435 | PriorGeneration = IdentifierGeneration[&II]; |
| 1436 | |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 1437 | IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration, |
| 1438 | NumIdentifierLookups, |
| 1439 | NumIdentifierLookupHits); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1440 | ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor); |
| 1441 | markIdentifierUpToDate(&II); |
| 1442 | } |
| 1443 | |
| 1444 | void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) { |
| 1445 | if (!II) |
| 1446 | return; |
| 1447 | |
| 1448 | II->setOutOfDate(false); |
| 1449 | |
| 1450 | // Update the generation for this identifier. |
| 1451 | if (getContext().getLangOpts().Modules) |
| 1452 | IdentifierGeneration[II] = CurrentGeneration; |
| 1453 | } |
| 1454 | |
| 1455 | llvm::PointerIntPair<const FileEntry *, 1, bool> |
| 1456 | ASTReader::getInputFile(ModuleFile &F, unsigned ID, bool Complain) { |
| 1457 | // If this ID is bogus, just return an empty input file. |
| 1458 | if (ID == 0 || ID > F.InputFilesLoaded.size()) |
| 1459 | return InputFile(); |
| 1460 | |
| 1461 | // If we've already loaded this input file, return it. |
| 1462 | if (F.InputFilesLoaded[ID-1].getPointer()) |
| 1463 | return F.InputFilesLoaded[ID-1]; |
| 1464 | |
| 1465 | // Go find this input file. |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1466 | BitstreamCursor &Cursor = F.InputFilesCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1467 | SavedStreamPosition SavedPosition(Cursor); |
| 1468 | Cursor.JumpToBit(F.InputFileOffsets[ID-1]); |
| 1469 | |
| 1470 | unsigned Code = Cursor.ReadCode(); |
| 1471 | RecordData Record; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1472 | StringRef Blob; |
| 1473 | switch ((InputFileRecordTypes)Cursor.readRecord(Code, Record, &Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1474 | case INPUT_FILE: { |
| 1475 | unsigned StoredID = Record[0]; |
| 1476 | assert(ID == StoredID && "Bogus stored ID or offset"); |
| 1477 | (void)StoredID; |
| 1478 | off_t StoredSize = (off_t)Record[1]; |
| 1479 | time_t StoredTime = (time_t)Record[2]; |
| 1480 | bool Overridden = (bool)Record[3]; |
| 1481 | |
| 1482 | // Get the file entry for this input file. |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1483 | StringRef OrigFilename = Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1484 | std::string Filename = OrigFilename; |
| 1485 | MaybeAddSystemRootToFilename(F, Filename); |
| 1486 | const FileEntry *File |
| 1487 | = Overridden? FileMgr.getVirtualFile(Filename, StoredSize, StoredTime) |
| 1488 | : FileMgr.getFile(Filename, /*OpenFile=*/false); |
| 1489 | |
| 1490 | // If we didn't find the file, resolve it relative to the |
| 1491 | // original directory from which this AST file was created. |
| 1492 | if (File == 0 && !F.OriginalDir.empty() && !CurrentDir.empty() && |
| 1493 | F.OriginalDir != CurrentDir) { |
| 1494 | std::string Resolved = resolveFileRelativeToOriginalDir(Filename, |
| 1495 | F.OriginalDir, |
| 1496 | CurrentDir); |
| 1497 | if (!Resolved.empty()) |
| 1498 | File = FileMgr.getFile(Resolved); |
| 1499 | } |
| 1500 | |
| 1501 | // For an overridden file, create a virtual file with the stored |
| 1502 | // size/timestamp. |
| 1503 | if (Overridden && File == 0) { |
| 1504 | File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime); |
| 1505 | } |
| 1506 | |
| 1507 | if (File == 0) { |
| 1508 | if (Complain) { |
| 1509 | std::string ErrorStr = "could not find file '"; |
| 1510 | ErrorStr += Filename; |
| 1511 | ErrorStr += "' referenced by AST file"; |
| 1512 | Error(ErrorStr.c_str()); |
| 1513 | } |
| 1514 | return InputFile(); |
| 1515 | } |
| 1516 | |
| 1517 | // Note that we've loaded this input file. |
| 1518 | F.InputFilesLoaded[ID-1] = InputFile(File, Overridden); |
| 1519 | |
| 1520 | // Check if there was a request to override the contents of the file |
| 1521 | // that was part of the precompiled header. Overridding such a file |
| 1522 | // can lead to problems when lexing using the source locations from the |
| 1523 | // PCH. |
| 1524 | SourceManager &SM = getSourceManager(); |
| 1525 | if (!Overridden && SM.isFileOverridden(File)) { |
| 1526 | Error(diag::err_fe_pch_file_overridden, Filename); |
| 1527 | // After emitting the diagnostic, recover by disabling the override so |
| 1528 | // that the original file will be used. |
| 1529 | SM.disableFileContentsOverride(File); |
| 1530 | // The FileEntry is a virtual file entry with the size of the contents |
| 1531 | // that would override the original contents. Set it to the original's |
| 1532 | // size/time. |
| 1533 | FileMgr.modifyFileEntry(const_cast<FileEntry*>(File), |
| 1534 | StoredSize, StoredTime); |
| 1535 | } |
| 1536 | |
| 1537 | // For an overridden file, there is nothing to validate. |
| 1538 | if (Overridden) |
| 1539 | return InputFile(File, Overridden); |
| 1540 | |
| 1541 | if ((StoredSize != File->getSize() |
| 1542 | #if !defined(LLVM_ON_WIN32) |
| 1543 | // In our regression testing, the Windows file system seems to |
| 1544 | // have inconsistent modification times that sometimes |
| 1545 | // erroneously trigger this error-handling path. |
| 1546 | || StoredTime != File->getModificationTime() |
| 1547 | #endif |
| 1548 | )) { |
| 1549 | if (Complain) |
| 1550 | Error(diag::err_fe_pch_file_modified, Filename); |
| 1551 | |
| 1552 | return InputFile(); |
| 1553 | } |
| 1554 | |
| 1555 | return InputFile(File, Overridden); |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | return InputFile(); |
| 1560 | } |
| 1561 | |
| 1562 | const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) { |
| 1563 | ModuleFile &M = ModuleMgr.getPrimaryModule(); |
| 1564 | std::string Filename = filenameStrRef; |
| 1565 | MaybeAddSystemRootToFilename(M, Filename); |
| 1566 | const FileEntry *File = FileMgr.getFile(Filename); |
| 1567 | if (File == 0 && !M.OriginalDir.empty() && !CurrentDir.empty() && |
| 1568 | M.OriginalDir != CurrentDir) { |
| 1569 | std::string resolved = resolveFileRelativeToOriginalDir(Filename, |
| 1570 | M.OriginalDir, |
| 1571 | CurrentDir); |
| 1572 | if (!resolved.empty()) |
| 1573 | File = FileMgr.getFile(resolved); |
| 1574 | } |
| 1575 | |
| 1576 | return File; |
| 1577 | } |
| 1578 | |
| 1579 | /// \brief If we are loading a relocatable PCH file, and the filename is |
| 1580 | /// not an absolute path, add the system root to the beginning of the file |
| 1581 | /// name. |
| 1582 | void ASTReader::MaybeAddSystemRootToFilename(ModuleFile &M, |
| 1583 | std::string &Filename) { |
| 1584 | // If this is not a relocatable PCH file, there's nothing to do. |
| 1585 | if (!M.RelocatablePCH) |
| 1586 | return; |
| 1587 | |
| 1588 | if (Filename.empty() || llvm::sys::path::is_absolute(Filename)) |
| 1589 | return; |
| 1590 | |
| 1591 | if (isysroot.empty()) { |
| 1592 | // If no system root was given, default to '/' |
| 1593 | Filename.insert(Filename.begin(), '/'); |
| 1594 | return; |
| 1595 | } |
| 1596 | |
| 1597 | unsigned Length = isysroot.size(); |
| 1598 | if (isysroot[Length - 1] != '/') |
| 1599 | Filename.insert(Filename.begin(), '/'); |
| 1600 | |
| 1601 | Filename.insert(Filename.begin(), isysroot.begin(), isysroot.end()); |
| 1602 | } |
| 1603 | |
| 1604 | ASTReader::ASTReadResult |
| 1605 | ASTReader::ReadControlBlock(ModuleFile &F, |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 1606 | SmallVectorImpl<ImportedModule> &Loaded, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1607 | unsigned ClientLoadCapabilities) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1608 | BitstreamCursor &Stream = F.Stream; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1609 | |
| 1610 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { |
| 1611 | Error("malformed block record in AST file"); |
| 1612 | return Failure; |
| 1613 | } |
| 1614 | |
| 1615 | // Read all of the records and blocks in the control block. |
| 1616 | RecordData Record; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1617 | while (1) { |
| 1618 | llvm::BitstreamEntry Entry = Stream.advance(); |
| 1619 | |
| 1620 | switch (Entry.Kind) { |
| 1621 | case llvm::BitstreamEntry::Error: |
| 1622 | Error("malformed block record in AST file"); |
| 1623 | return Failure; |
| 1624 | case llvm::BitstreamEntry::EndBlock: |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1625 | // Validate all of the input files. |
| 1626 | if (!DisableValidation) { |
| 1627 | bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0; |
| 1628 | for (unsigned I = 0, N = Record[0]; I < N; ++I) |
| 1629 | if (!getInputFile(F, I+1, Complain).getPointer()) |
| 1630 | return OutOfDate; |
| 1631 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1632 | return Success; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1633 | |
| 1634 | case llvm::BitstreamEntry::SubBlock: |
| 1635 | switch (Entry.ID) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1636 | case INPUT_FILES_BLOCK_ID: |
| 1637 | F.InputFilesCursor = Stream; |
| 1638 | if (Stream.SkipBlock() || // Skip with the main cursor |
| 1639 | // Read the abbreviations |
| 1640 | ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) { |
| 1641 | Error("malformed block record in AST file"); |
| 1642 | return Failure; |
| 1643 | } |
| 1644 | continue; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1645 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1646 | default: |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1647 | if (Stream.SkipBlock()) { |
| 1648 | Error("malformed block record in AST file"); |
| 1649 | return Failure; |
| 1650 | } |
| 1651 | continue; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1652 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1653 | |
| 1654 | case llvm::BitstreamEntry::Record: |
| 1655 | // The interesting case. |
| 1656 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1657 | } |
| 1658 | |
| 1659 | // Read and process a record. |
| 1660 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1661 | StringRef Blob; |
| 1662 | switch ((ControlRecordTypes)Stream.readRecord(Entry.ID, Record, &Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1663 | case METADATA: { |
| 1664 | if (Record[0] != VERSION_MAJOR && !DisableValidation) { |
| 1665 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) |
| 1666 | Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old |
| 1667 | : diag::warn_pch_version_too_new); |
| 1668 | return VersionMismatch; |
| 1669 | } |
| 1670 | |
| 1671 | bool hasErrors = Record[5]; |
| 1672 | if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) { |
| 1673 | Diag(diag::err_pch_with_compiler_errors); |
| 1674 | return HadErrors; |
| 1675 | } |
| 1676 | |
| 1677 | F.RelocatablePCH = Record[4]; |
| 1678 | |
| 1679 | const std::string &CurBranch = getClangFullRepositoryVersion(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1680 | StringRef ASTBranch = Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1681 | if (StringRef(CurBranch) != ASTBranch && !DisableValidation) { |
| 1682 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) |
| 1683 | Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch; |
| 1684 | return VersionMismatch; |
| 1685 | } |
| 1686 | break; |
| 1687 | } |
| 1688 | |
| 1689 | case IMPORTS: { |
| 1690 | // Load each of the imported PCH files. |
| 1691 | unsigned Idx = 0, N = Record.size(); |
| 1692 | while (Idx < N) { |
| 1693 | // Read information about the AST file. |
| 1694 | ModuleKind ImportedKind = (ModuleKind)Record[Idx++]; |
| 1695 | // The import location will be the local one for now; we will adjust |
| 1696 | // all import locations of module imports after the global source |
| 1697 | // location info are setup. |
| 1698 | SourceLocation ImportLoc = |
| 1699 | SourceLocation::getFromRawEncoding(Record[Idx++]); |
| 1700 | unsigned Length = Record[Idx++]; |
| 1701 | SmallString<128> ImportedFile(Record.begin() + Idx, |
| 1702 | Record.begin() + Idx + Length); |
| 1703 | Idx += Length; |
| 1704 | |
| 1705 | // Load the AST file. |
| 1706 | switch(ReadASTCore(ImportedFile, ImportedKind, ImportLoc, &F, Loaded, |
| 1707 | ClientLoadCapabilities)) { |
| 1708 | case Failure: return Failure; |
| 1709 | // If we have to ignore the dependency, we'll have to ignore this too. |
| 1710 | case OutOfDate: return OutOfDate; |
| 1711 | case VersionMismatch: return VersionMismatch; |
| 1712 | case ConfigurationMismatch: return ConfigurationMismatch; |
| 1713 | case HadErrors: return HadErrors; |
| 1714 | case Success: break; |
| 1715 | } |
| 1716 | } |
| 1717 | break; |
| 1718 | } |
| 1719 | |
| 1720 | case LANGUAGE_OPTIONS: { |
| 1721 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; |
| 1722 | if (Listener && &F == *ModuleMgr.begin() && |
| 1723 | ParseLanguageOptions(Record, Complain, *Listener) && |
| 1724 | !DisableValidation) |
| 1725 | return ConfigurationMismatch; |
| 1726 | break; |
| 1727 | } |
| 1728 | |
| 1729 | case TARGET_OPTIONS: { |
| 1730 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1731 | if (Listener && &F == *ModuleMgr.begin() && |
| 1732 | ParseTargetOptions(Record, Complain, *Listener) && |
| 1733 | !DisableValidation) |
| 1734 | return ConfigurationMismatch; |
| 1735 | break; |
| 1736 | } |
| 1737 | |
| 1738 | case DIAGNOSTIC_OPTIONS: { |
| 1739 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1740 | if (Listener && &F == *ModuleMgr.begin() && |
| 1741 | ParseDiagnosticOptions(Record, Complain, *Listener) && |
| 1742 | !DisableValidation) |
| 1743 | return ConfigurationMismatch; |
| 1744 | break; |
| 1745 | } |
| 1746 | |
| 1747 | case FILE_SYSTEM_OPTIONS: { |
| 1748 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1749 | if (Listener && &F == *ModuleMgr.begin() && |
| 1750 | ParseFileSystemOptions(Record, Complain, *Listener) && |
| 1751 | !DisableValidation) |
| 1752 | return ConfigurationMismatch; |
| 1753 | break; |
| 1754 | } |
| 1755 | |
| 1756 | case HEADER_SEARCH_OPTIONS: { |
| 1757 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1758 | if (Listener && &F == *ModuleMgr.begin() && |
| 1759 | ParseHeaderSearchOptions(Record, Complain, *Listener) && |
| 1760 | !DisableValidation) |
| 1761 | return ConfigurationMismatch; |
| 1762 | break; |
| 1763 | } |
| 1764 | |
| 1765 | case PREPROCESSOR_OPTIONS: { |
| 1766 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1767 | if (Listener && &F == *ModuleMgr.begin() && |
| 1768 | ParsePreprocessorOptions(Record, Complain, *Listener, |
| 1769 | SuggestedPredefines) && |
| 1770 | !DisableValidation) |
| 1771 | return ConfigurationMismatch; |
| 1772 | break; |
| 1773 | } |
| 1774 | |
| 1775 | case ORIGINAL_FILE: |
| 1776 | F.OriginalSourceFileID = FileID::get(Record[0]); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1777 | F.ActualOriginalSourceFileName = Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1778 | F.OriginalSourceFileName = F.ActualOriginalSourceFileName; |
| 1779 | MaybeAddSystemRootToFilename(F, F.OriginalSourceFileName); |
| 1780 | break; |
| 1781 | |
| 1782 | case ORIGINAL_FILE_ID: |
| 1783 | F.OriginalSourceFileID = FileID::get(Record[0]); |
| 1784 | break; |
| 1785 | |
| 1786 | case ORIGINAL_PCH_DIR: |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1787 | F.OriginalDir = Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1788 | break; |
| 1789 | |
| 1790 | case INPUT_FILE_OFFSETS: |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1791 | F.InputFileOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1792 | F.InputFilesLoaded.resize(Record[0]); |
| 1793 | break; |
| 1794 | } |
| 1795 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1796 | } |
| 1797 | |
| 1798 | bool ASTReader::ReadASTBlock(ModuleFile &F) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1799 | BitstreamCursor &Stream = F.Stream; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1800 | |
| 1801 | if (Stream.EnterSubBlock(AST_BLOCK_ID)) { |
| 1802 | Error("malformed block record in AST file"); |
| 1803 | return true; |
| 1804 | } |
| 1805 | |
| 1806 | // Read all of the records and blocks for the AST file. |
| 1807 | RecordData Record; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1808 | while (1) { |
| 1809 | llvm::BitstreamEntry Entry = Stream.advance(); |
| 1810 | |
| 1811 | switch (Entry.Kind) { |
| 1812 | case llvm::BitstreamEntry::Error: |
| 1813 | Error("error at end of module block in AST file"); |
| 1814 | return true; |
| 1815 | case llvm::BitstreamEntry::EndBlock: { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1816 | DeclContext *DC = Context.getTranslationUnitDecl(); |
| 1817 | if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage()) |
| 1818 | DC->setMustBuildLookupTable(); |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1819 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1820 | return false; |
| 1821 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1822 | case llvm::BitstreamEntry::SubBlock: |
| 1823 | switch (Entry.ID) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1824 | case DECLTYPES_BLOCK_ID: |
| 1825 | // We lazily load the decls block, but we want to set up the |
| 1826 | // DeclsCursor cursor to point into it. Clone our current bitcode |
| 1827 | // cursor to it, enter the block and read the abbrevs in that block. |
| 1828 | // With the main cursor, we just skip over it. |
| 1829 | F.DeclsCursor = Stream; |
| 1830 | if (Stream.SkipBlock() || // Skip with the main cursor. |
| 1831 | // Read the abbrevs. |
| 1832 | ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) { |
| 1833 | Error("malformed block record in AST file"); |
| 1834 | return true; |
| 1835 | } |
| 1836 | break; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1837 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1838 | case DECL_UPDATES_BLOCK_ID: |
| 1839 | if (Stream.SkipBlock()) { |
| 1840 | Error("malformed block record in AST file"); |
| 1841 | return true; |
| 1842 | } |
| 1843 | break; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1844 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1845 | case PREPROCESSOR_BLOCK_ID: |
| 1846 | F.MacroCursor = Stream; |
| 1847 | if (!PP.getExternalSource()) |
| 1848 | PP.setExternalSource(this); |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1849 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1850 | if (Stream.SkipBlock() || |
| 1851 | ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) { |
| 1852 | Error("malformed block record in AST file"); |
| 1853 | return true; |
| 1854 | } |
| 1855 | F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo(); |
| 1856 | break; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1857 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1858 | case PREPROCESSOR_DETAIL_BLOCK_ID: |
| 1859 | F.PreprocessorDetailCursor = Stream; |
| 1860 | if (Stream.SkipBlock() || |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1861 | ReadBlockAbbrevs(F.PreprocessorDetailCursor, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1862 | PREPROCESSOR_DETAIL_BLOCK_ID)) { |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1863 | Error("malformed preprocessor detail record in AST file"); |
| 1864 | return true; |
| 1865 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1866 | F.PreprocessorDetailStartOffset |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1867 | = F.PreprocessorDetailCursor.GetCurrentBitNo(); |
| 1868 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1869 | if (!PP.getPreprocessingRecord()) |
| 1870 | PP.createPreprocessingRecord(); |
| 1871 | if (!PP.getPreprocessingRecord()->getExternalSource()) |
| 1872 | PP.getPreprocessingRecord()->SetExternalSource(*this); |
| 1873 | break; |
| 1874 | |
| 1875 | case SOURCE_MANAGER_BLOCK_ID: |
| 1876 | if (ReadSourceManagerBlock(F)) |
| 1877 | return true; |
| 1878 | break; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1879 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1880 | case SUBMODULE_BLOCK_ID: |
| 1881 | if (ReadSubmoduleBlock(F)) |
| 1882 | return true; |
| 1883 | break; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1884 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1885 | case COMMENTS_BLOCK_ID: { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 1886 | BitstreamCursor C = Stream; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1887 | if (Stream.SkipBlock() || |
| 1888 | ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) { |
| 1889 | Error("malformed comments block in AST file"); |
| 1890 | return true; |
| 1891 | } |
| 1892 | CommentsCursors.push_back(std::make_pair(C, &F)); |
| 1893 | break; |
| 1894 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1895 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1896 | default: |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1897 | if (Stream.SkipBlock()) { |
| 1898 | Error("malformed block record in AST file"); |
| 1899 | return true; |
| 1900 | } |
| 1901 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1902 | } |
| 1903 | continue; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 1904 | |
| 1905 | case llvm::BitstreamEntry::Record: |
| 1906 | // The interesting case. |
| 1907 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1908 | } |
| 1909 | |
| 1910 | // Read and process a record. |
| 1911 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1912 | StringRef Blob; |
| 1913 | switch ((ASTRecordTypes)Stream.readRecord(Entry.ID, Record, &Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1914 | default: // Default behavior: ignore. |
| 1915 | break; |
| 1916 | |
| 1917 | case TYPE_OFFSET: { |
| 1918 | if (F.LocalNumTypes != 0) { |
| 1919 | Error("duplicate TYPE_OFFSET record in AST file"); |
| 1920 | return true; |
| 1921 | } |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1922 | F.TypeOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1923 | F.LocalNumTypes = Record[0]; |
| 1924 | unsigned LocalBaseTypeIndex = Record[1]; |
| 1925 | F.BaseTypeIndex = getTotalNumTypes(); |
| 1926 | |
| 1927 | if (F.LocalNumTypes > 0) { |
| 1928 | // Introduce the global -> local mapping for types within this module. |
| 1929 | GlobalTypeMap.insert(std::make_pair(getTotalNumTypes(), &F)); |
| 1930 | |
| 1931 | // Introduce the local -> global mapping for types within this module. |
| 1932 | F.TypeRemap.insertOrReplace( |
| 1933 | std::make_pair(LocalBaseTypeIndex, |
| 1934 | F.BaseTypeIndex - LocalBaseTypeIndex)); |
| 1935 | |
| 1936 | TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes); |
| 1937 | } |
| 1938 | break; |
| 1939 | } |
| 1940 | |
| 1941 | case DECL_OFFSET: { |
| 1942 | if (F.LocalNumDecls != 0) { |
| 1943 | Error("duplicate DECL_OFFSET record in AST file"); |
| 1944 | return true; |
| 1945 | } |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1946 | F.DeclOffsets = (const DeclOffset *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1947 | F.LocalNumDecls = Record[0]; |
| 1948 | unsigned LocalBaseDeclID = Record[1]; |
| 1949 | F.BaseDeclID = getTotalNumDecls(); |
| 1950 | |
| 1951 | if (F.LocalNumDecls > 0) { |
| 1952 | // Introduce the global -> local mapping for declarations within this |
| 1953 | // module. |
| 1954 | GlobalDeclMap.insert( |
| 1955 | std::make_pair(getTotalNumDecls() + NUM_PREDEF_DECL_IDS, &F)); |
| 1956 | |
| 1957 | // Introduce the local -> global mapping for declarations within this |
| 1958 | // module. |
| 1959 | F.DeclRemap.insertOrReplace( |
| 1960 | std::make_pair(LocalBaseDeclID, F.BaseDeclID - LocalBaseDeclID)); |
| 1961 | |
| 1962 | // Introduce the global -> local mapping for declarations within this |
| 1963 | // module. |
| 1964 | F.GlobalToLocalDeclIDs[&F] = LocalBaseDeclID; |
| 1965 | |
| 1966 | DeclsLoaded.resize(DeclsLoaded.size() + F.LocalNumDecls); |
| 1967 | } |
| 1968 | break; |
| 1969 | } |
| 1970 | |
| 1971 | case TU_UPDATE_LEXICAL: { |
| 1972 | DeclContext *TU = Context.getTranslationUnitDecl(); |
| 1973 | DeclContextInfo &Info = F.DeclContextInfos[TU]; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1974 | Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair *>(Blob.data()); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1975 | Info.NumLexicalDecls |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1976 | = static_cast<unsigned int>(Blob.size() / sizeof(KindDeclIDPair)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1977 | TU->setHasExternalLexicalStorage(true); |
| 1978 | break; |
| 1979 | } |
| 1980 | |
| 1981 | case UPDATE_VISIBLE: { |
| 1982 | unsigned Idx = 0; |
| 1983 | serialization::DeclID ID = ReadDeclID(F, Record, Idx); |
| 1984 | ASTDeclContextNameLookupTable *Table = |
| 1985 | ASTDeclContextNameLookupTable::Create( |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1986 | (const unsigned char *)Blob.data() + Record[Idx++], |
| 1987 | (const unsigned char *)Blob.data(), |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1988 | ASTDeclContextNameLookupTrait(*this, F)); |
| 1989 | if (ID == PREDEF_DECL_TRANSLATION_UNIT_ID) { // Is it the TU? |
| 1990 | DeclContext *TU = Context.getTranslationUnitDecl(); |
| 1991 | F.DeclContextInfos[TU].NameLookupTableData = Table; |
| 1992 | TU->setHasExternalVisibleStorage(true); |
| 1993 | } else |
| 1994 | PendingVisibleUpdates[ID].push_back(std::make_pair(Table, &F)); |
| 1995 | break; |
| 1996 | } |
| 1997 | |
| 1998 | case IDENTIFIER_TABLE: |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 1999 | F.IdentifierTableData = Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2000 | if (Record[0]) { |
| 2001 | F.IdentifierLookupTable |
| 2002 | = ASTIdentifierLookupTable::Create( |
| 2003 | (const unsigned char *)F.IdentifierTableData + Record[0], |
| 2004 | (const unsigned char *)F.IdentifierTableData, |
| 2005 | ASTIdentifierLookupTrait(*this, F)); |
| 2006 | |
| 2007 | PP.getIdentifierTable().setExternalIdentifierLookup(this); |
| 2008 | } |
| 2009 | break; |
| 2010 | |
| 2011 | case IDENTIFIER_OFFSET: { |
| 2012 | if (F.LocalNumIdentifiers != 0) { |
| 2013 | Error("duplicate IDENTIFIER_OFFSET record in AST file"); |
| 2014 | return true; |
| 2015 | } |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2016 | F.IdentifierOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2017 | F.LocalNumIdentifiers = Record[0]; |
| 2018 | unsigned LocalBaseIdentifierID = Record[1]; |
| 2019 | F.BaseIdentifierID = getTotalNumIdentifiers(); |
| 2020 | |
| 2021 | if (F.LocalNumIdentifiers > 0) { |
| 2022 | // Introduce the global -> local mapping for identifiers within this |
| 2023 | // module. |
| 2024 | GlobalIdentifierMap.insert(std::make_pair(getTotalNumIdentifiers() + 1, |
| 2025 | &F)); |
| 2026 | |
| 2027 | // Introduce the local -> global mapping for identifiers within this |
| 2028 | // module. |
| 2029 | F.IdentifierRemap.insertOrReplace( |
| 2030 | std::make_pair(LocalBaseIdentifierID, |
| 2031 | F.BaseIdentifierID - LocalBaseIdentifierID)); |
| 2032 | |
| 2033 | IdentifiersLoaded.resize(IdentifiersLoaded.size() |
| 2034 | + F.LocalNumIdentifiers); |
| 2035 | } |
| 2036 | break; |
| 2037 | } |
| 2038 | |
| 2039 | case EXTERNAL_DEFINITIONS: |
| 2040 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2041 | ExternalDefinitions.push_back(getGlobalDeclID(F, Record[I])); |
| 2042 | break; |
| 2043 | |
| 2044 | case SPECIAL_TYPES: |
| 2045 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2046 | SpecialTypes.push_back(getGlobalTypeID(F, Record[I])); |
| 2047 | break; |
| 2048 | |
| 2049 | case STATISTICS: |
| 2050 | TotalNumStatements += Record[0]; |
| 2051 | TotalNumMacros += Record[1]; |
| 2052 | TotalLexicalDeclContexts += Record[2]; |
| 2053 | TotalVisibleDeclContexts += Record[3]; |
| 2054 | break; |
| 2055 | |
| 2056 | case UNUSED_FILESCOPED_DECLS: |
| 2057 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2058 | UnusedFileScopedDecls.push_back(getGlobalDeclID(F, Record[I])); |
| 2059 | break; |
| 2060 | |
| 2061 | case DELEGATING_CTORS: |
| 2062 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2063 | DelegatingCtorDecls.push_back(getGlobalDeclID(F, Record[I])); |
| 2064 | break; |
| 2065 | |
| 2066 | case WEAK_UNDECLARED_IDENTIFIERS: |
| 2067 | if (Record.size() % 4 != 0) { |
| 2068 | Error("invalid weak identifiers record"); |
| 2069 | return true; |
| 2070 | } |
| 2071 | |
| 2072 | // FIXME: Ignore weak undeclared identifiers from non-original PCH |
| 2073 | // files. This isn't the way to do it :) |
| 2074 | WeakUndeclaredIdentifiers.clear(); |
| 2075 | |
| 2076 | // Translate the weak, undeclared identifiers into global IDs. |
| 2077 | for (unsigned I = 0, N = Record.size(); I < N; /* in loop */) { |
| 2078 | WeakUndeclaredIdentifiers.push_back( |
| 2079 | getGlobalIdentifierID(F, Record[I++])); |
| 2080 | WeakUndeclaredIdentifiers.push_back( |
| 2081 | getGlobalIdentifierID(F, Record[I++])); |
| 2082 | WeakUndeclaredIdentifiers.push_back( |
| 2083 | ReadSourceLocation(F, Record, I).getRawEncoding()); |
| 2084 | WeakUndeclaredIdentifiers.push_back(Record[I++]); |
| 2085 | } |
| 2086 | break; |
| 2087 | |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 2088 | case LOCALLY_SCOPED_EXTERN_C_DECLS: |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2089 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 2090 | LocallyScopedExternCDecls.push_back(getGlobalDeclID(F, Record[I])); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2091 | break; |
| 2092 | |
| 2093 | case SELECTOR_OFFSETS: { |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2094 | F.SelectorOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2095 | F.LocalNumSelectors = Record[0]; |
| 2096 | unsigned LocalBaseSelectorID = Record[1]; |
| 2097 | F.BaseSelectorID = getTotalNumSelectors(); |
| 2098 | |
| 2099 | if (F.LocalNumSelectors > 0) { |
| 2100 | // Introduce the global -> local mapping for selectors within this |
| 2101 | // module. |
| 2102 | GlobalSelectorMap.insert(std::make_pair(getTotalNumSelectors()+1, &F)); |
| 2103 | |
| 2104 | // Introduce the local -> global mapping for selectors within this |
| 2105 | // module. |
| 2106 | F.SelectorRemap.insertOrReplace( |
| 2107 | std::make_pair(LocalBaseSelectorID, |
| 2108 | F.BaseSelectorID - LocalBaseSelectorID)); |
| 2109 | |
| 2110 | SelectorsLoaded.resize(SelectorsLoaded.size() + F.LocalNumSelectors); |
| 2111 | } |
| 2112 | break; |
| 2113 | } |
| 2114 | |
| 2115 | case METHOD_POOL: |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2116 | F.SelectorLookupTableData = (const unsigned char *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2117 | if (Record[0]) |
| 2118 | F.SelectorLookupTable |
| 2119 | = ASTSelectorLookupTable::Create( |
| 2120 | F.SelectorLookupTableData + Record[0], |
| 2121 | F.SelectorLookupTableData, |
| 2122 | ASTSelectorLookupTrait(*this, F)); |
| 2123 | TotalNumMethodPoolEntries += Record[1]; |
| 2124 | break; |
| 2125 | |
| 2126 | case REFERENCED_SELECTOR_POOL: |
| 2127 | if (!Record.empty()) { |
| 2128 | for (unsigned Idx = 0, N = Record.size() - 1; Idx < N; /* in loop */) { |
| 2129 | ReferencedSelectorsData.push_back(getGlobalSelectorID(F, |
| 2130 | Record[Idx++])); |
| 2131 | ReferencedSelectorsData.push_back(ReadSourceLocation(F, Record, Idx). |
| 2132 | getRawEncoding()); |
| 2133 | } |
| 2134 | } |
| 2135 | break; |
| 2136 | |
| 2137 | case PP_COUNTER_VALUE: |
| 2138 | if (!Record.empty() && Listener) |
| 2139 | Listener->ReadCounter(F, Record[0]); |
| 2140 | break; |
| 2141 | |
| 2142 | case FILE_SORTED_DECLS: |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2143 | F.FileSortedDecls = (const DeclID *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2144 | F.NumFileSortedDecls = Record[0]; |
| 2145 | break; |
| 2146 | |
| 2147 | case SOURCE_LOCATION_OFFSETS: { |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2148 | F.SLocEntryOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2149 | F.LocalNumSLocEntries = Record[0]; |
| 2150 | unsigned SLocSpaceSize = Record[1]; |
| 2151 | llvm::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) = |
| 2152 | SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries, |
| 2153 | SLocSpaceSize); |
| 2154 | // Make our entry in the range map. BaseID is negative and growing, so |
| 2155 | // we invert it. Because we invert it, though, we need the other end of |
| 2156 | // the range. |
| 2157 | unsigned RangeStart = |
| 2158 | unsigned(-F.SLocEntryBaseID) - F.LocalNumSLocEntries + 1; |
| 2159 | GlobalSLocEntryMap.insert(std::make_pair(RangeStart, &F)); |
| 2160 | F.FirstLoc = SourceLocation::getFromRawEncoding(F.SLocEntryBaseOffset); |
| 2161 | |
| 2162 | // SLocEntryBaseOffset is lower than MaxLoadedOffset and decreasing. |
| 2163 | assert((F.SLocEntryBaseOffset & (1U << 31U)) == 0); |
| 2164 | GlobalSLocOffsetMap.insert( |
| 2165 | std::make_pair(SourceManager::MaxLoadedOffset - F.SLocEntryBaseOffset |
| 2166 | - SLocSpaceSize,&F)); |
| 2167 | |
| 2168 | // Initialize the remapping table. |
| 2169 | // Invalid stays invalid. |
| 2170 | F.SLocRemap.insert(std::make_pair(0U, 0)); |
| 2171 | // This module. Base was 2 when being compiled. |
| 2172 | F.SLocRemap.insert(std::make_pair(2U, |
| 2173 | static_cast<int>(F.SLocEntryBaseOffset - 2))); |
| 2174 | |
| 2175 | TotalNumSLocEntries += F.LocalNumSLocEntries; |
| 2176 | break; |
| 2177 | } |
| 2178 | |
| 2179 | case MODULE_OFFSET_MAP: { |
| 2180 | // Additional remapping information. |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2181 | const unsigned char *Data = (const unsigned char*)Blob.data(); |
| 2182 | const unsigned char *DataEnd = Data + Blob.size(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2183 | |
| 2184 | // Continuous range maps we may be updating in our module. |
| 2185 | ContinuousRangeMap<uint32_t, int, 2>::Builder SLocRemap(F.SLocRemap); |
| 2186 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2187 | IdentifierRemap(F.IdentifierRemap); |
| 2188 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2189 | MacroRemap(F.MacroRemap); |
| 2190 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2191 | PreprocessedEntityRemap(F.PreprocessedEntityRemap); |
| 2192 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2193 | SubmoduleRemap(F.SubmoduleRemap); |
| 2194 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2195 | SelectorRemap(F.SelectorRemap); |
| 2196 | ContinuousRangeMap<uint32_t, int, 2>::Builder DeclRemap(F.DeclRemap); |
| 2197 | ContinuousRangeMap<uint32_t, int, 2>::Builder TypeRemap(F.TypeRemap); |
| 2198 | |
| 2199 | while(Data < DataEnd) { |
| 2200 | uint16_t Len = io::ReadUnalignedLE16(Data); |
| 2201 | StringRef Name = StringRef((const char*)Data, Len); |
| 2202 | Data += Len; |
| 2203 | ModuleFile *OM = ModuleMgr.lookup(Name); |
| 2204 | if (!OM) { |
| 2205 | Error("SourceLocation remap refers to unknown module"); |
| 2206 | return true; |
| 2207 | } |
| 2208 | |
| 2209 | uint32_t SLocOffset = io::ReadUnalignedLE32(Data); |
| 2210 | uint32_t IdentifierIDOffset = io::ReadUnalignedLE32(Data); |
| 2211 | uint32_t MacroIDOffset = io::ReadUnalignedLE32(Data); |
| 2212 | uint32_t PreprocessedEntityIDOffset = io::ReadUnalignedLE32(Data); |
| 2213 | uint32_t SubmoduleIDOffset = io::ReadUnalignedLE32(Data); |
| 2214 | uint32_t SelectorIDOffset = io::ReadUnalignedLE32(Data); |
| 2215 | uint32_t DeclIDOffset = io::ReadUnalignedLE32(Data); |
| 2216 | uint32_t TypeIndexOffset = io::ReadUnalignedLE32(Data); |
| 2217 | |
| 2218 | // Source location offset is mapped to OM->SLocEntryBaseOffset. |
| 2219 | SLocRemap.insert(std::make_pair(SLocOffset, |
| 2220 | static_cast<int>(OM->SLocEntryBaseOffset - SLocOffset))); |
| 2221 | IdentifierRemap.insert( |
| 2222 | std::make_pair(IdentifierIDOffset, |
| 2223 | OM->BaseIdentifierID - IdentifierIDOffset)); |
| 2224 | MacroRemap.insert(std::make_pair(MacroIDOffset, |
| 2225 | OM->BaseMacroID - MacroIDOffset)); |
| 2226 | PreprocessedEntityRemap.insert( |
| 2227 | std::make_pair(PreprocessedEntityIDOffset, |
| 2228 | OM->BasePreprocessedEntityID - PreprocessedEntityIDOffset)); |
| 2229 | SubmoduleRemap.insert(std::make_pair(SubmoduleIDOffset, |
| 2230 | OM->BaseSubmoduleID - SubmoduleIDOffset)); |
| 2231 | SelectorRemap.insert(std::make_pair(SelectorIDOffset, |
| 2232 | OM->BaseSelectorID - SelectorIDOffset)); |
| 2233 | DeclRemap.insert(std::make_pair(DeclIDOffset, |
| 2234 | OM->BaseDeclID - DeclIDOffset)); |
| 2235 | |
| 2236 | TypeRemap.insert(std::make_pair(TypeIndexOffset, |
| 2237 | OM->BaseTypeIndex - TypeIndexOffset)); |
| 2238 | |
| 2239 | // Global -> local mappings. |
| 2240 | F.GlobalToLocalDeclIDs[OM] = DeclIDOffset; |
| 2241 | } |
| 2242 | break; |
| 2243 | } |
| 2244 | |
| 2245 | case SOURCE_MANAGER_LINE_TABLE: |
| 2246 | if (ParseLineTable(F, Record)) |
| 2247 | return true; |
| 2248 | break; |
| 2249 | |
| 2250 | case SOURCE_LOCATION_PRELOADS: { |
| 2251 | // Need to transform from the local view (1-based IDs) to the global view, |
| 2252 | // which is based off F.SLocEntryBaseID. |
| 2253 | if (!F.PreloadSLocEntries.empty()) { |
| 2254 | Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file"); |
| 2255 | return true; |
| 2256 | } |
| 2257 | |
| 2258 | F.PreloadSLocEntries.swap(Record); |
| 2259 | break; |
| 2260 | } |
| 2261 | |
| 2262 | case EXT_VECTOR_DECLS: |
| 2263 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2264 | ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I])); |
| 2265 | break; |
| 2266 | |
| 2267 | case VTABLE_USES: |
| 2268 | if (Record.size() % 3 != 0) { |
| 2269 | Error("Invalid VTABLE_USES record"); |
| 2270 | return true; |
| 2271 | } |
| 2272 | |
| 2273 | // Later tables overwrite earlier ones. |
| 2274 | // FIXME: Modules will have some trouble with this. This is clearly not |
| 2275 | // the right way to do this. |
| 2276 | VTableUses.clear(); |
| 2277 | |
| 2278 | for (unsigned Idx = 0, N = Record.size(); Idx != N; /* In loop */) { |
| 2279 | VTableUses.push_back(getGlobalDeclID(F, Record[Idx++])); |
| 2280 | VTableUses.push_back( |
| 2281 | ReadSourceLocation(F, Record, Idx).getRawEncoding()); |
| 2282 | VTableUses.push_back(Record[Idx++]); |
| 2283 | } |
| 2284 | break; |
| 2285 | |
| 2286 | case DYNAMIC_CLASSES: |
| 2287 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2288 | DynamicClasses.push_back(getGlobalDeclID(F, Record[I])); |
| 2289 | break; |
| 2290 | |
| 2291 | case PENDING_IMPLICIT_INSTANTIATIONS: |
| 2292 | if (PendingInstantiations.size() % 2 != 0) { |
| 2293 | Error("Invalid existing PendingInstantiations"); |
| 2294 | return true; |
| 2295 | } |
| 2296 | |
| 2297 | if (Record.size() % 2 != 0) { |
| 2298 | Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block"); |
| 2299 | return true; |
| 2300 | } |
| 2301 | |
| 2302 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { |
| 2303 | PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++])); |
| 2304 | PendingInstantiations.push_back( |
| 2305 | ReadSourceLocation(F, Record, I).getRawEncoding()); |
| 2306 | } |
| 2307 | break; |
| 2308 | |
| 2309 | case SEMA_DECL_REFS: |
| 2310 | // Later tables overwrite earlier ones. |
| 2311 | // FIXME: Modules will have some trouble with this. |
| 2312 | SemaDeclRefs.clear(); |
| 2313 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2314 | SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I])); |
| 2315 | break; |
| 2316 | |
| 2317 | case PPD_ENTITIES_OFFSETS: { |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2318 | F.PreprocessedEntityOffsets = (const PPEntityOffset *)Blob.data(); |
| 2319 | assert(Blob.size() % sizeof(PPEntityOffset) == 0); |
| 2320 | F.NumPreprocessedEntities = Blob.size() / sizeof(PPEntityOffset); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2321 | |
| 2322 | unsigned LocalBasePreprocessedEntityID = Record[0]; |
| 2323 | |
| 2324 | unsigned StartingID; |
| 2325 | if (!PP.getPreprocessingRecord()) |
| 2326 | PP.createPreprocessingRecord(); |
| 2327 | if (!PP.getPreprocessingRecord()->getExternalSource()) |
| 2328 | PP.getPreprocessingRecord()->SetExternalSource(*this); |
| 2329 | StartingID |
| 2330 | = PP.getPreprocessingRecord() |
| 2331 | ->allocateLoadedEntities(F.NumPreprocessedEntities); |
| 2332 | F.BasePreprocessedEntityID = StartingID; |
| 2333 | |
| 2334 | if (F.NumPreprocessedEntities > 0) { |
| 2335 | // Introduce the global -> local mapping for preprocessed entities in |
| 2336 | // this module. |
| 2337 | GlobalPreprocessedEntityMap.insert(std::make_pair(StartingID, &F)); |
| 2338 | |
| 2339 | // Introduce the local -> global mapping for preprocessed entities in |
| 2340 | // this module. |
| 2341 | F.PreprocessedEntityRemap.insertOrReplace( |
| 2342 | std::make_pair(LocalBasePreprocessedEntityID, |
| 2343 | F.BasePreprocessedEntityID - LocalBasePreprocessedEntityID)); |
| 2344 | } |
| 2345 | |
| 2346 | break; |
| 2347 | } |
| 2348 | |
| 2349 | case DECL_UPDATE_OFFSETS: { |
| 2350 | if (Record.size() % 2 != 0) { |
| 2351 | Error("invalid DECL_UPDATE_OFFSETS block in AST file"); |
| 2352 | return true; |
| 2353 | } |
| 2354 | for (unsigned I = 0, N = Record.size(); I != N; I += 2) |
| 2355 | DeclUpdateOffsets[getGlobalDeclID(F, Record[I])] |
| 2356 | .push_back(std::make_pair(&F, Record[I+1])); |
| 2357 | break; |
| 2358 | } |
| 2359 | |
| 2360 | case DECL_REPLACEMENTS: { |
| 2361 | if (Record.size() % 3 != 0) { |
| 2362 | Error("invalid DECL_REPLACEMENTS block in AST file"); |
| 2363 | return true; |
| 2364 | } |
| 2365 | for (unsigned I = 0, N = Record.size(); I != N; I += 3) |
| 2366 | ReplacedDecls[getGlobalDeclID(F, Record[I])] |
| 2367 | = ReplacedDeclInfo(&F, Record[I+1], Record[I+2]); |
| 2368 | break; |
| 2369 | } |
| 2370 | |
| 2371 | case OBJC_CATEGORIES_MAP: { |
| 2372 | if (F.LocalNumObjCCategoriesInMap != 0) { |
| 2373 | Error("duplicate OBJC_CATEGORIES_MAP record in AST file"); |
| 2374 | return true; |
| 2375 | } |
| 2376 | |
| 2377 | F.LocalNumObjCCategoriesInMap = Record[0]; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2378 | F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2379 | break; |
| 2380 | } |
| 2381 | |
| 2382 | case OBJC_CATEGORIES: |
| 2383 | F.ObjCCategories.swap(Record); |
| 2384 | break; |
| 2385 | |
| 2386 | case CXX_BASE_SPECIFIER_OFFSETS: { |
| 2387 | if (F.LocalNumCXXBaseSpecifiers != 0) { |
| 2388 | Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file"); |
| 2389 | return true; |
| 2390 | } |
| 2391 | |
| 2392 | F.LocalNumCXXBaseSpecifiers = Record[0]; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2393 | F.CXXBaseSpecifiersOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2394 | NumCXXBaseSpecifiersLoaded += F.LocalNumCXXBaseSpecifiers; |
| 2395 | break; |
| 2396 | } |
| 2397 | |
| 2398 | case DIAG_PRAGMA_MAPPINGS: |
| 2399 | if (F.PragmaDiagMappings.empty()) |
| 2400 | F.PragmaDiagMappings.swap(Record); |
| 2401 | else |
| 2402 | F.PragmaDiagMappings.insert(F.PragmaDiagMappings.end(), |
| 2403 | Record.begin(), Record.end()); |
| 2404 | break; |
| 2405 | |
| 2406 | case CUDA_SPECIAL_DECL_REFS: |
| 2407 | // Later tables overwrite earlier ones. |
| 2408 | // FIXME: Modules will have trouble with this. |
| 2409 | CUDASpecialDeclRefs.clear(); |
| 2410 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2411 | CUDASpecialDeclRefs.push_back(getGlobalDeclID(F, Record[I])); |
| 2412 | break; |
| 2413 | |
| 2414 | case HEADER_SEARCH_TABLE: { |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2415 | F.HeaderFileInfoTableData = Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2416 | F.LocalNumHeaderFileInfos = Record[1]; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2417 | F.HeaderFileFrameworkStrings = Blob.data() + Record[2]; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2418 | if (Record[0]) { |
| 2419 | F.HeaderFileInfoTable |
| 2420 | = HeaderFileInfoLookupTable::Create( |
| 2421 | (const unsigned char *)F.HeaderFileInfoTableData + Record[0], |
| 2422 | (const unsigned char *)F.HeaderFileInfoTableData, |
| 2423 | HeaderFileInfoTrait(*this, F, |
| 2424 | &PP.getHeaderSearchInfo(), |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2425 | Blob.data() + Record[2])); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2426 | |
| 2427 | PP.getHeaderSearchInfo().SetExternalSource(this); |
| 2428 | if (!PP.getHeaderSearchInfo().getExternalLookup()) |
| 2429 | PP.getHeaderSearchInfo().SetExternalLookup(this); |
| 2430 | } |
| 2431 | break; |
| 2432 | } |
| 2433 | |
| 2434 | case FP_PRAGMA_OPTIONS: |
| 2435 | // Later tables overwrite earlier ones. |
| 2436 | FPPragmaOptions.swap(Record); |
| 2437 | break; |
| 2438 | |
| 2439 | case OPENCL_EXTENSIONS: |
| 2440 | // Later tables overwrite earlier ones. |
| 2441 | OpenCLExtensions.swap(Record); |
| 2442 | break; |
| 2443 | |
| 2444 | case TENTATIVE_DEFINITIONS: |
| 2445 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2446 | TentativeDefinitions.push_back(getGlobalDeclID(F, Record[I])); |
| 2447 | break; |
| 2448 | |
| 2449 | case KNOWN_NAMESPACES: |
| 2450 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2451 | KnownNamespaces.push_back(getGlobalDeclID(F, Record[I])); |
| 2452 | break; |
| 2453 | |
| 2454 | case IMPORTED_MODULES: { |
| 2455 | if (F.Kind != MK_Module) { |
| 2456 | // If we aren't loading a module (which has its own exports), make |
| 2457 | // all of the imported modules visible. |
| 2458 | // FIXME: Deal with macros-only imports. |
| 2459 | for (unsigned I = 0, N = Record.size(); I != N; ++I) { |
| 2460 | if (unsigned GlobalID = getGlobalSubmoduleID(F, Record[I])) |
| 2461 | ImportedModules.push_back(GlobalID); |
| 2462 | } |
| 2463 | } |
| 2464 | break; |
| 2465 | } |
| 2466 | |
| 2467 | case LOCAL_REDECLARATIONS: { |
| 2468 | F.RedeclarationChains.swap(Record); |
| 2469 | break; |
| 2470 | } |
| 2471 | |
| 2472 | case LOCAL_REDECLARATIONS_MAP: { |
| 2473 | if (F.LocalNumRedeclarationsInMap != 0) { |
| 2474 | Error("duplicate LOCAL_REDECLARATIONS_MAP record in AST file"); |
| 2475 | return true; |
| 2476 | } |
| 2477 | |
| 2478 | F.LocalNumRedeclarationsInMap = Record[0]; |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2479 | F.RedeclarationsMap = (const LocalRedeclarationsInfo *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2480 | break; |
| 2481 | } |
| 2482 | |
| 2483 | case MERGED_DECLARATIONS: { |
| 2484 | for (unsigned Idx = 0; Idx < Record.size(); /* increment in loop */) { |
| 2485 | GlobalDeclID CanonID = getGlobalDeclID(F, Record[Idx++]); |
| 2486 | SmallVectorImpl<GlobalDeclID> &Decls = StoredMergedDecls[CanonID]; |
| 2487 | for (unsigned N = Record[Idx++]; N > 0; --N) |
| 2488 | Decls.push_back(getGlobalDeclID(F, Record[Idx++])); |
| 2489 | } |
| 2490 | break; |
| 2491 | } |
| 2492 | |
| 2493 | case MACRO_OFFSET: { |
| 2494 | if (F.LocalNumMacros != 0) { |
| 2495 | Error("duplicate MACRO_OFFSET record in AST file"); |
| 2496 | return true; |
| 2497 | } |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 2498 | F.MacroOffsets = (const uint32_t *)Blob.data(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2499 | F.LocalNumMacros = Record[0]; |
| 2500 | unsigned LocalBaseMacroID = Record[1]; |
| 2501 | F.BaseMacroID = getTotalNumMacros(); |
| 2502 | |
| 2503 | if (F.LocalNumMacros > 0) { |
| 2504 | // Introduce the global -> local mapping for macros within this module. |
| 2505 | GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F)); |
| 2506 | |
| 2507 | // Introduce the local -> global mapping for macros within this module. |
| 2508 | F.MacroRemap.insertOrReplace( |
| 2509 | std::make_pair(LocalBaseMacroID, |
| 2510 | F.BaseMacroID - LocalBaseMacroID)); |
| 2511 | |
| 2512 | MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros); |
| 2513 | } |
| 2514 | break; |
| 2515 | } |
| 2516 | |
| 2517 | case MACRO_UPDATES: { |
| 2518 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { |
| 2519 | MacroID ID = getGlobalMacroID(F, Record[I++]); |
| 2520 | if (I == N) |
| 2521 | break; |
| 2522 | |
| 2523 | SourceLocation UndefLoc = ReadSourceLocation(F, Record, I); |
| 2524 | SubmoduleID SubmoduleID = getGlobalSubmoduleID(F, Record[I++]);; |
| 2525 | MacroUpdate Update; |
| 2526 | Update.UndefLoc = UndefLoc; |
| 2527 | MacroUpdates[ID].push_back(std::make_pair(SubmoduleID, Update)); |
| 2528 | } |
| 2529 | break; |
| 2530 | } |
| 2531 | } |
| 2532 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2533 | } |
| 2534 | |
| 2535 | void ASTReader::makeNamesVisible(const HiddenNames &Names) { |
| 2536 | for (unsigned I = 0, N = Names.size(); I != N; ++I) { |
| 2537 | switch (Names[I].getKind()) { |
| 2538 | case HiddenName::Declaration: |
| 2539 | Names[I].getDecl()->Hidden = false; |
| 2540 | break; |
| 2541 | |
| 2542 | case HiddenName::MacroVisibility: { |
| 2543 | std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro(); |
| 2544 | Macro.second->setHidden(!Macro.second->isPublic()); |
| 2545 | if (Macro.second->isDefined()) { |
| 2546 | PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second); |
| 2547 | } |
| 2548 | break; |
| 2549 | } |
| 2550 | |
| 2551 | case HiddenName::MacroUndef: { |
| 2552 | std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro(); |
| 2553 | if (Macro.second->isDefined()) { |
| 2554 | Macro.second->setUndefLoc(Names[I].getMacroUndefLoc()); |
| 2555 | if (PPMutationListener *Listener = PP.getPPMutationListener()) |
| 2556 | Listener->UndefinedMacro(Macro.second); |
| 2557 | PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second); |
| 2558 | } |
| 2559 | break; |
| 2560 | } |
| 2561 | } |
| 2562 | } |
| 2563 | } |
| 2564 | |
| 2565 | void ASTReader::makeModuleVisible(Module *Mod, |
| 2566 | Module::NameVisibilityKind NameVisibility) { |
| 2567 | llvm::SmallPtrSet<Module *, 4> Visited; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2568 | SmallVector<Module *, 4> Stack; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2569 | Stack.push_back(Mod); |
| 2570 | while (!Stack.empty()) { |
| 2571 | Mod = Stack.back(); |
| 2572 | Stack.pop_back(); |
| 2573 | |
| 2574 | if (NameVisibility <= Mod->NameVisibility) { |
| 2575 | // This module already has this level of visibility (or greater), so |
| 2576 | // there is nothing more to do. |
| 2577 | continue; |
| 2578 | } |
| 2579 | |
| 2580 | if (!Mod->isAvailable()) { |
| 2581 | // Modules that aren't available cannot be made visible. |
| 2582 | continue; |
| 2583 | } |
| 2584 | |
| 2585 | // Update the module's name visibility. |
| 2586 | Mod->NameVisibility = NameVisibility; |
| 2587 | |
| 2588 | // If we've already deserialized any names from this module, |
| 2589 | // mark them as visible. |
| 2590 | HiddenNamesMapType::iterator Hidden = HiddenNamesMap.find(Mod); |
| 2591 | if (Hidden != HiddenNamesMap.end()) { |
| 2592 | makeNamesVisible(Hidden->second); |
| 2593 | HiddenNamesMap.erase(Hidden); |
| 2594 | } |
| 2595 | |
| 2596 | // Push any non-explicit submodules onto the stack to be marked as |
| 2597 | // visible. |
| 2598 | for (Module::submodule_iterator Sub = Mod->submodule_begin(), |
| 2599 | SubEnd = Mod->submodule_end(); |
| 2600 | Sub != SubEnd; ++Sub) { |
| 2601 | if (!(*Sub)->IsExplicit && Visited.insert(*Sub)) |
| 2602 | Stack.push_back(*Sub); |
| 2603 | } |
| 2604 | |
| 2605 | // Push any exported modules onto the stack to be marked as visible. |
| 2606 | bool AnyWildcard = false; |
| 2607 | bool UnrestrictedWildcard = false; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2608 | SmallVector<Module *, 4> WildcardRestrictions; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2609 | for (unsigned I = 0, N = Mod->Exports.size(); I != N; ++I) { |
| 2610 | Module *Exported = Mod->Exports[I].getPointer(); |
| 2611 | if (!Mod->Exports[I].getInt()) { |
| 2612 | // Export a named module directly; no wildcards involved. |
| 2613 | if (Visited.insert(Exported)) |
| 2614 | Stack.push_back(Exported); |
| 2615 | |
| 2616 | continue; |
| 2617 | } |
| 2618 | |
| 2619 | // Wildcard export: export all of the imported modules that match |
| 2620 | // the given pattern. |
| 2621 | AnyWildcard = true; |
| 2622 | if (UnrestrictedWildcard) |
| 2623 | continue; |
| 2624 | |
| 2625 | if (Module *Restriction = Mod->Exports[I].getPointer()) |
| 2626 | WildcardRestrictions.push_back(Restriction); |
| 2627 | else { |
| 2628 | WildcardRestrictions.clear(); |
| 2629 | UnrestrictedWildcard = true; |
| 2630 | } |
| 2631 | } |
| 2632 | |
| 2633 | // If there were any wildcards, push any imported modules that were |
| 2634 | // re-exported by the wildcard restriction. |
| 2635 | if (!AnyWildcard) |
| 2636 | continue; |
| 2637 | |
| 2638 | for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) { |
| 2639 | Module *Imported = Mod->Imports[I]; |
| 2640 | if (!Visited.insert(Imported)) |
| 2641 | continue; |
| 2642 | |
| 2643 | bool Acceptable = UnrestrictedWildcard; |
| 2644 | if (!Acceptable) { |
| 2645 | // Check whether this module meets one of the restrictions. |
| 2646 | for (unsigned R = 0, NR = WildcardRestrictions.size(); R != NR; ++R) { |
| 2647 | Module *Restriction = WildcardRestrictions[R]; |
| 2648 | if (Imported == Restriction || Imported->isSubModuleOf(Restriction)) { |
| 2649 | Acceptable = true; |
| 2650 | break; |
| 2651 | } |
| 2652 | } |
| 2653 | } |
| 2654 | |
| 2655 | if (!Acceptable) |
| 2656 | continue; |
| 2657 | |
| 2658 | Stack.push_back(Imported); |
| 2659 | } |
| 2660 | } |
| 2661 | } |
| 2662 | |
| 2663 | ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName, |
| 2664 | ModuleKind Type, |
| 2665 | SourceLocation ImportLoc, |
| 2666 | unsigned ClientLoadCapabilities) { |
| 2667 | // Bump the generation number. |
| 2668 | unsigned PreviousGeneration = CurrentGeneration++; |
| 2669 | |
| 2670 | unsigned NumModules = ModuleMgr.size(); |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2671 | SmallVector<ImportedModule, 4> Loaded; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2672 | switch(ASTReadResult ReadResult = ReadASTCore(FileName, Type, ImportLoc, |
| 2673 | /*ImportedBy=*/0, Loaded, |
| 2674 | ClientLoadCapabilities)) { |
| 2675 | case Failure: |
| 2676 | case OutOfDate: |
| 2677 | case VersionMismatch: |
| 2678 | case ConfigurationMismatch: |
| 2679 | case HadErrors: |
| 2680 | ModuleMgr.removeModules(ModuleMgr.begin() + NumModules, ModuleMgr.end()); |
| 2681 | return ReadResult; |
| 2682 | |
| 2683 | case Success: |
| 2684 | break; |
| 2685 | } |
| 2686 | |
| 2687 | // Here comes stuff that we only do once the entire chain is loaded. |
| 2688 | |
| 2689 | // Load the AST blocks of all of the modules that we loaded. |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2690 | for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(), |
| 2691 | MEnd = Loaded.end(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2692 | M != MEnd; ++M) { |
| 2693 | ModuleFile &F = *M->Mod; |
| 2694 | |
| 2695 | // Read the AST block. |
| 2696 | if (ReadASTBlock(F)) |
| 2697 | return Failure; |
| 2698 | |
| 2699 | // Once read, set the ModuleFile bit base offset and update the size in |
| 2700 | // bits of all files we've seen. |
| 2701 | F.GlobalBitOffset = TotalModulesSizeInBits; |
| 2702 | TotalModulesSizeInBits += F.SizeInBits; |
| 2703 | GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F)); |
| 2704 | |
| 2705 | // Preload SLocEntries. |
| 2706 | for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) { |
| 2707 | int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID; |
| 2708 | // Load it through the SourceManager and don't call ReadSLocEntry() |
| 2709 | // directly because the entry may have already been loaded in which case |
| 2710 | // calling ReadSLocEntry() directly would trigger an assertion in |
| 2711 | // SourceManager. |
| 2712 | SourceMgr.getLoadedSLocEntryByID(Index); |
| 2713 | } |
| 2714 | } |
| 2715 | |
| 2716 | // Setup the import locations. |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2717 | for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(), |
| 2718 | MEnd = Loaded.end(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2719 | M != MEnd; ++M) { |
| 2720 | ModuleFile &F = *M->Mod; |
| 2721 | if (!M->ImportedBy) |
| 2722 | F.ImportLoc = M->ImportLoc; |
| 2723 | else |
| 2724 | F.ImportLoc = ReadSourceLocation(*M->ImportedBy, |
| 2725 | M->ImportLoc.getRawEncoding()); |
| 2726 | } |
| 2727 | |
| 2728 | // Mark all of the identifiers in the identifier table as being out of date, |
| 2729 | // so that various accessors know to check the loaded modules when the |
| 2730 | // identifier is used. |
| 2731 | for (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(), |
| 2732 | IdEnd = PP.getIdentifierTable().end(); |
| 2733 | Id != IdEnd; ++Id) |
| 2734 | Id->second->setOutOfDate(true); |
| 2735 | |
| 2736 | // Resolve any unresolved module exports. |
| 2737 | for (unsigned I = 0, N = UnresolvedModuleImportExports.size(); I != N; ++I) { |
| 2738 | UnresolvedModuleImportExport &Unresolved = UnresolvedModuleImportExports[I]; |
| 2739 | SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID); |
| 2740 | Module *ResolvedMod = getSubmodule(GlobalID); |
| 2741 | |
| 2742 | if (Unresolved.IsImport) { |
| 2743 | if (ResolvedMod) |
| 2744 | Unresolved.Mod->Imports.push_back(ResolvedMod); |
| 2745 | continue; |
| 2746 | } |
| 2747 | |
| 2748 | if (ResolvedMod || Unresolved.IsWildcard) |
| 2749 | Unresolved.Mod->Exports.push_back( |
| 2750 | Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard)); |
| 2751 | } |
| 2752 | UnresolvedModuleImportExports.clear(); |
| 2753 | |
| 2754 | InitializeContext(); |
| 2755 | |
| 2756 | if (DeserializationListener) |
| 2757 | DeserializationListener->ReaderInitialized(this); |
| 2758 | |
| 2759 | ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule(); |
| 2760 | if (!PrimaryModule.OriginalSourceFileID.isInvalid()) { |
| 2761 | PrimaryModule.OriginalSourceFileID |
| 2762 | = FileID::get(PrimaryModule.SLocEntryBaseID |
| 2763 | + PrimaryModule.OriginalSourceFileID.getOpaqueValue() - 1); |
| 2764 | |
| 2765 | // If this AST file is a precompiled preamble, then set the |
| 2766 | // preamble file ID of the source manager to the file source file |
| 2767 | // from which the preamble was built. |
| 2768 | if (Type == MK_Preamble) { |
| 2769 | SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID); |
| 2770 | } else if (Type == MK_MainFile) { |
| 2771 | SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID); |
| 2772 | } |
| 2773 | } |
| 2774 | |
| 2775 | // For any Objective-C class definitions we have already loaded, make sure |
| 2776 | // that we load any additional categories. |
| 2777 | for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) { |
| 2778 | loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(), |
| 2779 | ObjCClassesLoaded[I], |
| 2780 | PreviousGeneration); |
| 2781 | } |
| 2782 | |
| 2783 | return Success; |
| 2784 | } |
| 2785 | |
| 2786 | ASTReader::ASTReadResult |
| 2787 | ASTReader::ReadASTCore(StringRef FileName, |
| 2788 | ModuleKind Type, |
| 2789 | SourceLocation ImportLoc, |
| 2790 | ModuleFile *ImportedBy, |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2791 | SmallVectorImpl<ImportedModule> &Loaded, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2792 | unsigned ClientLoadCapabilities) { |
| 2793 | ModuleFile *M; |
| 2794 | bool NewModule; |
| 2795 | std::string ErrorStr; |
| 2796 | llvm::tie(M, NewModule) = ModuleMgr.addModule(FileName, Type, ImportLoc, |
| 2797 | ImportedBy, CurrentGeneration, |
| 2798 | ErrorStr); |
| 2799 | |
| 2800 | if (!M) { |
| 2801 | // We couldn't load the module. |
| 2802 | std::string Msg = "Unable to load module \"" + FileName.str() + "\": " |
| 2803 | + ErrorStr; |
| 2804 | Error(Msg); |
| 2805 | return Failure; |
| 2806 | } |
| 2807 | |
| 2808 | if (!NewModule) { |
| 2809 | // We've already loaded this module. |
| 2810 | return Success; |
| 2811 | } |
| 2812 | |
| 2813 | // FIXME: This seems rather a hack. Should CurrentDir be part of the |
| 2814 | // module? |
| 2815 | if (FileName != "-") { |
| 2816 | CurrentDir = llvm::sys::path::parent_path(FileName); |
| 2817 | if (CurrentDir.empty()) CurrentDir = "."; |
| 2818 | } |
| 2819 | |
| 2820 | ModuleFile &F = *M; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 2821 | BitstreamCursor &Stream = F.Stream; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2822 | Stream.init(F.StreamFile); |
| 2823 | F.SizeInBits = F.Buffer->getBufferSize() * 8; |
| 2824 | |
| 2825 | // Sniff for the signature. |
| 2826 | if (Stream.Read(8) != 'C' || |
| 2827 | Stream.Read(8) != 'P' || |
| 2828 | Stream.Read(8) != 'C' || |
| 2829 | Stream.Read(8) != 'H') { |
| 2830 | Diag(diag::err_not_a_pch_file) << FileName; |
| 2831 | return Failure; |
| 2832 | } |
| 2833 | |
| 2834 | // This is used for compatibility with older PCH formats. |
| 2835 | bool HaveReadControlBlock = false; |
| 2836 | |
Chris Lattner | 99a5af0 | 2013-01-20 00:00:22 +0000 | [diff] [blame] | 2837 | while (1) { |
| 2838 | llvm::BitstreamEntry Entry = Stream.advance(); |
| 2839 | |
| 2840 | switch (Entry.Kind) { |
| 2841 | case llvm::BitstreamEntry::Error: |
| 2842 | case llvm::BitstreamEntry::EndBlock: |
| 2843 | case llvm::BitstreamEntry::Record: |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2844 | Error("invalid record at top-level of AST file"); |
| 2845 | return Failure; |
Chris Lattner | 99a5af0 | 2013-01-20 00:00:22 +0000 | [diff] [blame] | 2846 | |
| 2847 | case llvm::BitstreamEntry::SubBlock: |
| 2848 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2849 | } |
| 2850 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2851 | // We only know the control subblock ID. |
Chris Lattner | 99a5af0 | 2013-01-20 00:00:22 +0000 | [diff] [blame] | 2852 | switch (Entry.ID) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2853 | case llvm::bitc::BLOCKINFO_BLOCK_ID: |
| 2854 | if (Stream.ReadBlockInfoBlock()) { |
| 2855 | Error("malformed BlockInfoBlock in AST file"); |
| 2856 | return Failure; |
| 2857 | } |
| 2858 | break; |
| 2859 | case CONTROL_BLOCK_ID: |
| 2860 | HaveReadControlBlock = true; |
| 2861 | switch (ReadControlBlock(F, Loaded, ClientLoadCapabilities)) { |
| 2862 | case Success: |
| 2863 | break; |
| 2864 | |
| 2865 | case Failure: return Failure; |
| 2866 | case OutOfDate: return OutOfDate; |
| 2867 | case VersionMismatch: return VersionMismatch; |
| 2868 | case ConfigurationMismatch: return ConfigurationMismatch; |
| 2869 | case HadErrors: return HadErrors; |
| 2870 | } |
| 2871 | break; |
| 2872 | case AST_BLOCK_ID: |
| 2873 | if (!HaveReadControlBlock) { |
| 2874 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) |
| 2875 | Diag(diag::warn_pch_version_too_old); |
| 2876 | return VersionMismatch; |
| 2877 | } |
| 2878 | |
| 2879 | // Record that we've loaded this module. |
| 2880 | Loaded.push_back(ImportedModule(M, ImportedBy, ImportLoc)); |
| 2881 | return Success; |
| 2882 | |
| 2883 | default: |
| 2884 | if (Stream.SkipBlock()) { |
| 2885 | Error("malformed block record in AST file"); |
| 2886 | return Failure; |
| 2887 | } |
| 2888 | break; |
| 2889 | } |
| 2890 | } |
| 2891 | |
| 2892 | return Success; |
| 2893 | } |
| 2894 | |
| 2895 | void ASTReader::InitializeContext() { |
| 2896 | // If there's a listener, notify them that we "read" the translation unit. |
| 2897 | if (DeserializationListener) |
| 2898 | DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID, |
| 2899 | Context.getTranslationUnitDecl()); |
| 2900 | |
| 2901 | // Make sure we load the declaration update records for the translation unit, |
| 2902 | // if there are any. |
| 2903 | loadDeclUpdateRecords(PREDEF_DECL_TRANSLATION_UNIT_ID, |
| 2904 | Context.getTranslationUnitDecl()); |
| 2905 | |
| 2906 | // FIXME: Find a better way to deal with collisions between these |
| 2907 | // built-in types. Right now, we just ignore the problem. |
| 2908 | |
| 2909 | // Load the special types. |
| 2910 | if (SpecialTypes.size() >= NumSpecialTypeIDs) { |
| 2911 | if (unsigned String = SpecialTypes[SPECIAL_TYPE_CF_CONSTANT_STRING]) { |
| 2912 | if (!Context.CFConstantStringTypeDecl) |
| 2913 | Context.setCFConstantStringType(GetType(String)); |
| 2914 | } |
| 2915 | |
| 2916 | if (unsigned File = SpecialTypes[SPECIAL_TYPE_FILE]) { |
| 2917 | QualType FileType = GetType(File); |
| 2918 | if (FileType.isNull()) { |
| 2919 | Error("FILE type is NULL"); |
| 2920 | return; |
| 2921 | } |
| 2922 | |
| 2923 | if (!Context.FILEDecl) { |
| 2924 | if (const TypedefType *Typedef = FileType->getAs<TypedefType>()) |
| 2925 | Context.setFILEDecl(Typedef->getDecl()); |
| 2926 | else { |
| 2927 | const TagType *Tag = FileType->getAs<TagType>(); |
| 2928 | if (!Tag) { |
| 2929 | Error("Invalid FILE type in AST file"); |
| 2930 | return; |
| 2931 | } |
| 2932 | Context.setFILEDecl(Tag->getDecl()); |
| 2933 | } |
| 2934 | } |
| 2935 | } |
| 2936 | |
| 2937 | if (unsigned Jmp_buf = SpecialTypes[SPECIAL_TYPE_JMP_BUF]) { |
| 2938 | QualType Jmp_bufType = GetType(Jmp_buf); |
| 2939 | if (Jmp_bufType.isNull()) { |
| 2940 | Error("jmp_buf type is NULL"); |
| 2941 | return; |
| 2942 | } |
| 2943 | |
| 2944 | if (!Context.jmp_bufDecl) { |
| 2945 | if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>()) |
| 2946 | Context.setjmp_bufDecl(Typedef->getDecl()); |
| 2947 | else { |
| 2948 | const TagType *Tag = Jmp_bufType->getAs<TagType>(); |
| 2949 | if (!Tag) { |
| 2950 | Error("Invalid jmp_buf type in AST file"); |
| 2951 | return; |
| 2952 | } |
| 2953 | Context.setjmp_bufDecl(Tag->getDecl()); |
| 2954 | } |
| 2955 | } |
| 2956 | } |
| 2957 | |
| 2958 | if (unsigned Sigjmp_buf = SpecialTypes[SPECIAL_TYPE_SIGJMP_BUF]) { |
| 2959 | QualType Sigjmp_bufType = GetType(Sigjmp_buf); |
| 2960 | if (Sigjmp_bufType.isNull()) { |
| 2961 | Error("sigjmp_buf type is NULL"); |
| 2962 | return; |
| 2963 | } |
| 2964 | |
| 2965 | if (!Context.sigjmp_bufDecl) { |
| 2966 | if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>()) |
| 2967 | Context.setsigjmp_bufDecl(Typedef->getDecl()); |
| 2968 | else { |
| 2969 | const TagType *Tag = Sigjmp_bufType->getAs<TagType>(); |
| 2970 | assert(Tag && "Invalid sigjmp_buf type in AST file"); |
| 2971 | Context.setsigjmp_bufDecl(Tag->getDecl()); |
| 2972 | } |
| 2973 | } |
| 2974 | } |
| 2975 | |
| 2976 | if (unsigned ObjCIdRedef |
| 2977 | = SpecialTypes[SPECIAL_TYPE_OBJC_ID_REDEFINITION]) { |
| 2978 | if (Context.ObjCIdRedefinitionType.isNull()) |
| 2979 | Context.ObjCIdRedefinitionType = GetType(ObjCIdRedef); |
| 2980 | } |
| 2981 | |
| 2982 | if (unsigned ObjCClassRedef |
| 2983 | = SpecialTypes[SPECIAL_TYPE_OBJC_CLASS_REDEFINITION]) { |
| 2984 | if (Context.ObjCClassRedefinitionType.isNull()) |
| 2985 | Context.ObjCClassRedefinitionType = GetType(ObjCClassRedef); |
| 2986 | } |
| 2987 | |
| 2988 | if (unsigned ObjCSelRedef |
| 2989 | = SpecialTypes[SPECIAL_TYPE_OBJC_SEL_REDEFINITION]) { |
| 2990 | if (Context.ObjCSelRedefinitionType.isNull()) |
| 2991 | Context.ObjCSelRedefinitionType = GetType(ObjCSelRedef); |
| 2992 | } |
| 2993 | |
| 2994 | if (unsigned Ucontext_t = SpecialTypes[SPECIAL_TYPE_UCONTEXT_T]) { |
| 2995 | QualType Ucontext_tType = GetType(Ucontext_t); |
| 2996 | if (Ucontext_tType.isNull()) { |
| 2997 | Error("ucontext_t type is NULL"); |
| 2998 | return; |
| 2999 | } |
| 3000 | |
| 3001 | if (!Context.ucontext_tDecl) { |
| 3002 | if (const TypedefType *Typedef = Ucontext_tType->getAs<TypedefType>()) |
| 3003 | Context.setucontext_tDecl(Typedef->getDecl()); |
| 3004 | else { |
| 3005 | const TagType *Tag = Ucontext_tType->getAs<TagType>(); |
| 3006 | assert(Tag && "Invalid ucontext_t type in AST file"); |
| 3007 | Context.setucontext_tDecl(Tag->getDecl()); |
| 3008 | } |
| 3009 | } |
| 3010 | } |
| 3011 | } |
| 3012 | |
| 3013 | ReadPragmaDiagnosticMappings(Context.getDiagnostics()); |
| 3014 | |
| 3015 | // If there were any CUDA special declarations, deserialize them. |
| 3016 | if (!CUDASpecialDeclRefs.empty()) { |
| 3017 | assert(CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!"); |
| 3018 | Context.setcudaConfigureCallDecl( |
| 3019 | cast<FunctionDecl>(GetDecl(CUDASpecialDeclRefs[0]))); |
| 3020 | } |
| 3021 | |
| 3022 | // Re-export any modules that were imported by a non-module AST file. |
| 3023 | for (unsigned I = 0, N = ImportedModules.size(); I != N; ++I) { |
| 3024 | if (Module *Imported = getSubmodule(ImportedModules[I])) |
| 3025 | makeModuleVisible(Imported, Module::AllVisible); |
| 3026 | } |
| 3027 | ImportedModules.clear(); |
| 3028 | } |
| 3029 | |
| 3030 | void ASTReader::finalizeForWriting() { |
| 3031 | for (HiddenNamesMapType::iterator Hidden = HiddenNamesMap.begin(), |
| 3032 | HiddenEnd = HiddenNamesMap.end(); |
| 3033 | Hidden != HiddenEnd; ++Hidden) { |
| 3034 | makeNamesVisible(Hidden->second); |
| 3035 | } |
| 3036 | HiddenNamesMap.clear(); |
| 3037 | } |
| 3038 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3039 | /// SkipCursorToControlBlock - Given a cursor at the start of an AST file, scan |
| 3040 | /// ahead and drop the cursor into the start of the CONTROL_BLOCK, returning |
| 3041 | /// false on success and true on failure. |
| 3042 | static bool SkipCursorToControlBlock(BitstreamCursor &Cursor) { |
| 3043 | while (1) { |
| 3044 | llvm::BitstreamEntry Entry = Cursor.advance(); |
| 3045 | switch (Entry.Kind) { |
| 3046 | case llvm::BitstreamEntry::Error: |
| 3047 | case llvm::BitstreamEntry::EndBlock: |
| 3048 | return true; |
| 3049 | |
| 3050 | case llvm::BitstreamEntry::Record: |
| 3051 | // Ignore top-level records. |
| 3052 | Cursor.skipRecord(Entry.ID); |
| 3053 | break; |
| 3054 | |
| 3055 | case llvm::BitstreamEntry::SubBlock: |
| 3056 | if (Entry.ID == CONTROL_BLOCK_ID) { |
| 3057 | if (Cursor.EnterSubBlock(CONTROL_BLOCK_ID)) |
| 3058 | return true; |
| 3059 | // Found it! |
| 3060 | return false; |
| 3061 | } |
| 3062 | |
| 3063 | if (Cursor.SkipBlock()) |
| 3064 | return true; |
| 3065 | } |
| 3066 | } |
| 3067 | } |
| 3068 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3069 | /// \brief Retrieve the name of the original source file name |
| 3070 | /// directly from the AST file, without actually loading the AST |
| 3071 | /// file. |
| 3072 | std::string ASTReader::getOriginalSourceFile(const std::string &ASTFileName, |
| 3073 | FileManager &FileMgr, |
| 3074 | DiagnosticsEngine &Diags) { |
| 3075 | // Open the AST file. |
| 3076 | std::string ErrStr; |
| 3077 | OwningPtr<llvm::MemoryBuffer> Buffer; |
| 3078 | Buffer.reset(FileMgr.getBufferForFile(ASTFileName, &ErrStr)); |
| 3079 | if (!Buffer) { |
| 3080 | Diags.Report(diag::err_fe_unable_to_read_pch_file) << ASTFileName << ErrStr; |
| 3081 | return std::string(); |
| 3082 | } |
| 3083 | |
| 3084 | // Initialize the stream |
| 3085 | llvm::BitstreamReader StreamFile; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3086 | BitstreamCursor Stream; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3087 | StreamFile.init((const unsigned char *)Buffer->getBufferStart(), |
| 3088 | (const unsigned char *)Buffer->getBufferEnd()); |
| 3089 | Stream.init(StreamFile); |
| 3090 | |
| 3091 | // Sniff for the signature. |
| 3092 | if (Stream.Read(8) != 'C' || |
| 3093 | Stream.Read(8) != 'P' || |
| 3094 | Stream.Read(8) != 'C' || |
| 3095 | Stream.Read(8) != 'H') { |
| 3096 | Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName; |
| 3097 | return std::string(); |
| 3098 | } |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3099 | |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 3100 | // Scan for the CONTROL_BLOCK_ID block. |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3101 | if (SkipCursorToControlBlock(Stream)) { |
| 3102 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; |
| 3103 | return std::string(); |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 3104 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3105 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3106 | // Scan for ORIGINAL_FILE inside the control block. |
| 3107 | RecordData Record; |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 3108 | while (1) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3109 | llvm::BitstreamEntry Entry = Stream.advanceSkippingSubblocks(); |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 3110 | if (Entry.Kind == llvm::BitstreamEntry::EndBlock) |
| 3111 | return std::string(); |
| 3112 | |
| 3113 | if (Entry.Kind != llvm::BitstreamEntry::Record) { |
| 3114 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; |
| 3115 | return std::string(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3116 | } |
Chris Lattner | 88bde50 | 2013-01-19 21:39:22 +0000 | [diff] [blame] | 3117 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3118 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3119 | StringRef Blob; |
| 3120 | if (Stream.readRecord(Entry.ID, Record, &Blob) == ORIGINAL_FILE) |
| 3121 | return Blob.str(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3122 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3123 | } |
| 3124 | |
| 3125 | namespace { |
| 3126 | class SimplePCHValidator : public ASTReaderListener { |
| 3127 | const LangOptions &ExistingLangOpts; |
| 3128 | const TargetOptions &ExistingTargetOpts; |
| 3129 | const PreprocessorOptions &ExistingPPOpts; |
| 3130 | FileManager &FileMgr; |
| 3131 | |
| 3132 | public: |
| 3133 | SimplePCHValidator(const LangOptions &ExistingLangOpts, |
| 3134 | const TargetOptions &ExistingTargetOpts, |
| 3135 | const PreprocessorOptions &ExistingPPOpts, |
| 3136 | FileManager &FileMgr) |
| 3137 | : ExistingLangOpts(ExistingLangOpts), |
| 3138 | ExistingTargetOpts(ExistingTargetOpts), |
| 3139 | ExistingPPOpts(ExistingPPOpts), |
| 3140 | FileMgr(FileMgr) |
| 3141 | { |
| 3142 | } |
| 3143 | |
| 3144 | virtual bool ReadLanguageOptions(const LangOptions &LangOpts, |
| 3145 | bool Complain) { |
| 3146 | return checkLanguageOptions(ExistingLangOpts, LangOpts, 0); |
| 3147 | } |
| 3148 | virtual bool ReadTargetOptions(const TargetOptions &TargetOpts, |
| 3149 | bool Complain) { |
| 3150 | return checkTargetOptions(ExistingTargetOpts, TargetOpts, 0); |
| 3151 | } |
| 3152 | virtual bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, |
| 3153 | bool Complain, |
| 3154 | std::string &SuggestedPredefines) { |
| 3155 | return checkPreprocessorOptions(ExistingPPOpts, PPOpts, 0, FileMgr, |
| 3156 | SuggestedPredefines); |
| 3157 | } |
| 3158 | }; |
| 3159 | } |
| 3160 | |
| 3161 | bool ASTReader::readASTFileControlBlock(StringRef Filename, |
| 3162 | FileManager &FileMgr, |
| 3163 | ASTReaderListener &Listener) { |
| 3164 | // Open the AST file. |
| 3165 | std::string ErrStr; |
| 3166 | OwningPtr<llvm::MemoryBuffer> Buffer; |
| 3167 | Buffer.reset(FileMgr.getBufferForFile(Filename, &ErrStr)); |
| 3168 | if (!Buffer) { |
| 3169 | return true; |
| 3170 | } |
| 3171 | |
| 3172 | // Initialize the stream |
| 3173 | llvm::BitstreamReader StreamFile; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3174 | BitstreamCursor Stream; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3175 | StreamFile.init((const unsigned char *)Buffer->getBufferStart(), |
| 3176 | (const unsigned char *)Buffer->getBufferEnd()); |
| 3177 | Stream.init(StreamFile); |
| 3178 | |
| 3179 | // Sniff for the signature. |
| 3180 | if (Stream.Read(8) != 'C' || |
| 3181 | Stream.Read(8) != 'P' || |
| 3182 | Stream.Read(8) != 'C' || |
| 3183 | Stream.Read(8) != 'H') { |
| 3184 | return true; |
| 3185 | } |
| 3186 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3187 | // Scan for the CONTROL_BLOCK_ID block. |
| 3188 | if (SkipCursorToControlBlock(Stream)) |
| 3189 | return true; |
| 3190 | |
| 3191 | // Scan for ORIGINAL_FILE inside the control block. |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3192 | RecordData Record; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3193 | while (1) { |
| 3194 | llvm::BitstreamEntry Entry = Stream.advanceSkippingSubblocks(); |
| 3195 | if (Entry.Kind == llvm::BitstreamEntry::EndBlock) |
| 3196 | return false; |
| 3197 | |
| 3198 | if (Entry.Kind != llvm::BitstreamEntry::Record) |
| 3199 | return true; |
| 3200 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3201 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3202 | StringRef Blob; |
| 3203 | unsigned RecCode = Stream.readRecord(Entry.ID, Record, &Blob); |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3204 | switch ((ControlRecordTypes)RecCode) { |
| 3205 | case METADATA: { |
| 3206 | if (Record[0] != VERSION_MAJOR) |
| 3207 | return true; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3208 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3209 | const std::string &CurBranch = getClangFullRepositoryVersion(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3210 | if (StringRef(CurBranch) != Blob) |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3211 | return true; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3212 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3213 | break; |
| 3214 | } |
| 3215 | case LANGUAGE_OPTIONS: |
| 3216 | if (ParseLanguageOptions(Record, false, Listener)) |
| 3217 | return true; |
| 3218 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3219 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3220 | case TARGET_OPTIONS: |
| 3221 | if (ParseTargetOptions(Record, false, Listener)) |
| 3222 | return true; |
| 3223 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3224 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3225 | case DIAGNOSTIC_OPTIONS: |
| 3226 | if (ParseDiagnosticOptions(Record, false, Listener)) |
| 3227 | return true; |
| 3228 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3229 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3230 | case FILE_SYSTEM_OPTIONS: |
| 3231 | if (ParseFileSystemOptions(Record, false, Listener)) |
| 3232 | return true; |
| 3233 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3234 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3235 | case HEADER_SEARCH_OPTIONS: |
| 3236 | if (ParseHeaderSearchOptions(Record, false, Listener)) |
| 3237 | return true; |
| 3238 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3239 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3240 | case PREPROCESSOR_OPTIONS: { |
| 3241 | std::string IgnoredSuggestedPredefines; |
| 3242 | if (ParsePreprocessorOptions(Record, false, Listener, |
| 3243 | IgnoredSuggestedPredefines)) |
| 3244 | return true; |
| 3245 | break; |
| 3246 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3247 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3248 | default: |
| 3249 | // No other validation to perform. |
| 3250 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3251 | } |
| 3252 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3253 | } |
| 3254 | |
| 3255 | |
| 3256 | bool ASTReader::isAcceptableASTFile(StringRef Filename, |
| 3257 | FileManager &FileMgr, |
| 3258 | const LangOptions &LangOpts, |
| 3259 | const TargetOptions &TargetOpts, |
| 3260 | const PreprocessorOptions &PPOpts) { |
| 3261 | SimplePCHValidator validator(LangOpts, TargetOpts, PPOpts, FileMgr); |
| 3262 | return !readASTFileControlBlock(Filename, FileMgr, validator); |
| 3263 | } |
| 3264 | |
| 3265 | bool ASTReader::ReadSubmoduleBlock(ModuleFile &F) { |
| 3266 | // Enter the submodule block. |
| 3267 | if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) { |
| 3268 | Error("malformed submodule block record in AST file"); |
| 3269 | return true; |
| 3270 | } |
| 3271 | |
| 3272 | ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap(); |
| 3273 | bool First = true; |
| 3274 | Module *CurrentModule = 0; |
| 3275 | RecordData Record; |
| 3276 | while (true) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3277 | llvm::BitstreamEntry Entry = F.Stream.advanceSkippingSubblocks(); |
| 3278 | |
| 3279 | switch (Entry.Kind) { |
| 3280 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. |
| 3281 | case llvm::BitstreamEntry::Error: |
| 3282 | Error("malformed block record in AST file"); |
| 3283 | return true; |
| 3284 | case llvm::BitstreamEntry::EndBlock: |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3285 | return false; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3286 | case llvm::BitstreamEntry::Record: |
| 3287 | // The interesting case. |
| 3288 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3289 | } |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3290 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3291 | // Read a record. |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3292 | StringRef Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3293 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3294 | switch (F.Stream.readRecord(Entry.ID, Record, &Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3295 | default: // Default behavior: ignore. |
| 3296 | break; |
| 3297 | |
| 3298 | case SUBMODULE_DEFINITION: { |
| 3299 | if (First) { |
| 3300 | Error("missing submodule metadata record at beginning of block"); |
| 3301 | return true; |
| 3302 | } |
| 3303 | |
| 3304 | if (Record.size() < 7) { |
| 3305 | Error("malformed module definition"); |
| 3306 | return true; |
| 3307 | } |
| 3308 | |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3309 | StringRef Name = Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3310 | SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[0]); |
| 3311 | SubmoduleID Parent = getGlobalSubmoduleID(F, Record[1]); |
| 3312 | bool IsFramework = Record[2]; |
| 3313 | bool IsExplicit = Record[3]; |
| 3314 | bool IsSystem = Record[4]; |
| 3315 | bool InferSubmodules = Record[5]; |
| 3316 | bool InferExplicitSubmodules = Record[6]; |
| 3317 | bool InferExportWildcard = Record[7]; |
| 3318 | |
| 3319 | Module *ParentModule = 0; |
| 3320 | if (Parent) |
| 3321 | ParentModule = getSubmodule(Parent); |
| 3322 | |
| 3323 | // Retrieve this (sub)module from the module map, creating it if |
| 3324 | // necessary. |
| 3325 | CurrentModule = ModMap.findOrCreateModule(Name, ParentModule, |
| 3326 | IsFramework, |
| 3327 | IsExplicit).first; |
| 3328 | SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS; |
| 3329 | if (GlobalIndex >= SubmodulesLoaded.size() || |
| 3330 | SubmodulesLoaded[GlobalIndex]) { |
| 3331 | Error("too many submodules"); |
| 3332 | return true; |
| 3333 | } |
| 3334 | |
| 3335 | CurrentModule->setASTFile(F.File); |
| 3336 | CurrentModule->IsFromModuleFile = true; |
| 3337 | CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem; |
| 3338 | CurrentModule->InferSubmodules = InferSubmodules; |
| 3339 | CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules; |
| 3340 | CurrentModule->InferExportWildcard = InferExportWildcard; |
| 3341 | if (DeserializationListener) |
| 3342 | DeserializationListener->ModuleRead(GlobalID, CurrentModule); |
| 3343 | |
| 3344 | SubmodulesLoaded[GlobalIndex] = CurrentModule; |
Douglas Gregor | b6cbe51 | 2013-01-14 17:21:00 +0000 | [diff] [blame] | 3345 | |
| 3346 | // Clear out link libraries; the module file has them. |
| 3347 | CurrentModule->LinkLibraries.clear(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3348 | break; |
| 3349 | } |
| 3350 | |
| 3351 | case SUBMODULE_UMBRELLA_HEADER: { |
| 3352 | if (First) { |
| 3353 | Error("missing submodule metadata record at beginning of block"); |
| 3354 | return true; |
| 3355 | } |
| 3356 | |
| 3357 | if (!CurrentModule) |
| 3358 | break; |
| 3359 | |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3360 | if (const FileEntry *Umbrella = PP.getFileManager().getFile(Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3361 | if (!CurrentModule->getUmbrellaHeader()) |
| 3362 | ModMap.setUmbrellaHeader(CurrentModule, Umbrella); |
| 3363 | else if (CurrentModule->getUmbrellaHeader() != Umbrella) { |
| 3364 | Error("mismatched umbrella headers in submodule"); |
| 3365 | return true; |
| 3366 | } |
| 3367 | } |
| 3368 | break; |
| 3369 | } |
| 3370 | |
| 3371 | case SUBMODULE_HEADER: { |
| 3372 | if (First) { |
| 3373 | Error("missing submodule metadata record at beginning of block"); |
| 3374 | return true; |
| 3375 | } |
| 3376 | |
| 3377 | if (!CurrentModule) |
| 3378 | break; |
| 3379 | |
| 3380 | // FIXME: Be more lazy about this! |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3381 | if (const FileEntry *File = PP.getFileManager().getFile(Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3382 | if (std::find(CurrentModule->Headers.begin(), |
| 3383 | CurrentModule->Headers.end(), |
| 3384 | File) == CurrentModule->Headers.end()) |
| 3385 | ModMap.addHeader(CurrentModule, File, false); |
| 3386 | } |
| 3387 | break; |
| 3388 | } |
| 3389 | |
| 3390 | case SUBMODULE_EXCLUDED_HEADER: { |
| 3391 | if (First) { |
| 3392 | Error("missing submodule metadata record at beginning of block"); |
| 3393 | return true; |
| 3394 | } |
| 3395 | |
| 3396 | if (!CurrentModule) |
| 3397 | break; |
| 3398 | |
| 3399 | // FIXME: Be more lazy about this! |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3400 | if (const FileEntry *File = PP.getFileManager().getFile(Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3401 | if (std::find(CurrentModule->Headers.begin(), |
| 3402 | CurrentModule->Headers.end(), |
| 3403 | File) == CurrentModule->Headers.end()) |
| 3404 | ModMap.addHeader(CurrentModule, File, true); |
| 3405 | } |
| 3406 | break; |
| 3407 | } |
| 3408 | |
| 3409 | case SUBMODULE_TOPHEADER: { |
| 3410 | if (First) { |
| 3411 | Error("missing submodule metadata record at beginning of block"); |
| 3412 | return true; |
| 3413 | } |
| 3414 | |
| 3415 | if (!CurrentModule) |
| 3416 | break; |
| 3417 | |
| 3418 | // FIXME: Be more lazy about this! |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3419 | if (const FileEntry *File = PP.getFileManager().getFile(Blob)) |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3420 | CurrentModule->TopHeaders.insert(File); |
| 3421 | break; |
| 3422 | } |
| 3423 | |
| 3424 | case SUBMODULE_UMBRELLA_DIR: { |
| 3425 | if (First) { |
| 3426 | Error("missing submodule metadata record at beginning of block"); |
| 3427 | return true; |
| 3428 | } |
| 3429 | |
| 3430 | if (!CurrentModule) |
| 3431 | break; |
| 3432 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3433 | if (const DirectoryEntry *Umbrella |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3434 | = PP.getFileManager().getDirectory(Blob)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3435 | if (!CurrentModule->getUmbrellaDir()) |
| 3436 | ModMap.setUmbrellaDir(CurrentModule, Umbrella); |
| 3437 | else if (CurrentModule->getUmbrellaDir() != Umbrella) { |
| 3438 | Error("mismatched umbrella directories in submodule"); |
| 3439 | return true; |
| 3440 | } |
| 3441 | } |
| 3442 | break; |
| 3443 | } |
| 3444 | |
| 3445 | case SUBMODULE_METADATA: { |
| 3446 | if (!First) { |
| 3447 | Error("submodule metadata record not at beginning of block"); |
| 3448 | return true; |
| 3449 | } |
| 3450 | First = false; |
| 3451 | |
| 3452 | F.BaseSubmoduleID = getTotalNumSubmodules(); |
| 3453 | F.LocalNumSubmodules = Record[0]; |
| 3454 | unsigned LocalBaseSubmoduleID = Record[1]; |
| 3455 | if (F.LocalNumSubmodules > 0) { |
| 3456 | // Introduce the global -> local mapping for submodules within this |
| 3457 | // module. |
| 3458 | GlobalSubmoduleMap.insert(std::make_pair(getTotalNumSubmodules()+1,&F)); |
| 3459 | |
| 3460 | // Introduce the local -> global mapping for submodules within this |
| 3461 | // module. |
| 3462 | F.SubmoduleRemap.insertOrReplace( |
| 3463 | std::make_pair(LocalBaseSubmoduleID, |
| 3464 | F.BaseSubmoduleID - LocalBaseSubmoduleID)); |
| 3465 | |
| 3466 | SubmodulesLoaded.resize(SubmodulesLoaded.size() + F.LocalNumSubmodules); |
| 3467 | } |
| 3468 | break; |
| 3469 | } |
| 3470 | |
| 3471 | case SUBMODULE_IMPORTS: { |
| 3472 | if (First) { |
| 3473 | Error("missing submodule metadata record at beginning of block"); |
| 3474 | return true; |
| 3475 | } |
| 3476 | |
| 3477 | if (!CurrentModule) |
| 3478 | break; |
| 3479 | |
| 3480 | for (unsigned Idx = 0; Idx != Record.size(); ++Idx) { |
| 3481 | UnresolvedModuleImportExport Unresolved; |
| 3482 | Unresolved.File = &F; |
| 3483 | Unresolved.Mod = CurrentModule; |
| 3484 | Unresolved.ID = Record[Idx]; |
| 3485 | Unresolved.IsImport = true; |
| 3486 | Unresolved.IsWildcard = false; |
| 3487 | UnresolvedModuleImportExports.push_back(Unresolved); |
| 3488 | } |
| 3489 | break; |
| 3490 | } |
| 3491 | |
| 3492 | case SUBMODULE_EXPORTS: { |
| 3493 | if (First) { |
| 3494 | Error("missing submodule metadata record at beginning of block"); |
| 3495 | return true; |
| 3496 | } |
| 3497 | |
| 3498 | if (!CurrentModule) |
| 3499 | break; |
| 3500 | |
| 3501 | for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) { |
| 3502 | UnresolvedModuleImportExport Unresolved; |
| 3503 | Unresolved.File = &F; |
| 3504 | Unresolved.Mod = CurrentModule; |
| 3505 | Unresolved.ID = Record[Idx]; |
| 3506 | Unresolved.IsImport = false; |
| 3507 | Unresolved.IsWildcard = Record[Idx + 1]; |
| 3508 | UnresolvedModuleImportExports.push_back(Unresolved); |
| 3509 | } |
| 3510 | |
| 3511 | // Once we've loaded the set of exports, there's no reason to keep |
| 3512 | // the parsed, unresolved exports around. |
| 3513 | CurrentModule->UnresolvedExports.clear(); |
| 3514 | break; |
| 3515 | } |
| 3516 | case SUBMODULE_REQUIRES: { |
| 3517 | if (First) { |
| 3518 | Error("missing submodule metadata record at beginning of block"); |
| 3519 | return true; |
| 3520 | } |
| 3521 | |
| 3522 | if (!CurrentModule) |
| 3523 | break; |
| 3524 | |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3525 | CurrentModule->addRequirement(Blob, Context.getLangOpts(), |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3526 | Context.getTargetInfo()); |
| 3527 | break; |
| 3528 | } |
Douglas Gregor | b6cbe51 | 2013-01-14 17:21:00 +0000 | [diff] [blame] | 3529 | |
| 3530 | case SUBMODULE_LINK_LIBRARY: |
| 3531 | if (First) { |
| 3532 | Error("missing submodule metadata record at beginning of block"); |
| 3533 | return true; |
| 3534 | } |
| 3535 | |
| 3536 | if (!CurrentModule) |
| 3537 | break; |
| 3538 | |
| 3539 | CurrentModule->LinkLibraries.push_back( |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3540 | Module::LinkLibrary(Blob, Record[0])); |
Douglas Gregor | b6cbe51 | 2013-01-14 17:21:00 +0000 | [diff] [blame] | 3541 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3542 | } |
| 3543 | } |
| 3544 | } |
| 3545 | |
| 3546 | /// \brief Parse the record that corresponds to a LangOptions data |
| 3547 | /// structure. |
| 3548 | /// |
| 3549 | /// This routine parses the language options from the AST file and then gives |
| 3550 | /// them to the AST listener if one is set. |
| 3551 | /// |
| 3552 | /// \returns true if the listener deems the file unacceptable, false otherwise. |
| 3553 | bool ASTReader::ParseLanguageOptions(const RecordData &Record, |
| 3554 | bool Complain, |
| 3555 | ASTReaderListener &Listener) { |
| 3556 | LangOptions LangOpts; |
| 3557 | unsigned Idx = 0; |
| 3558 | #define LANGOPT(Name, Bits, Default, Description) \ |
| 3559 | LangOpts.Name = Record[Idx++]; |
| 3560 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
| 3561 | LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++])); |
| 3562 | #include "clang/Basic/LangOptions.def" |
Will Dietz | 4f45bc0 | 2013-01-18 11:30:38 +0000 | [diff] [blame] | 3563 | #define SANITIZER(NAME, ID) LangOpts.Sanitize.ID = Record[Idx++]; |
| 3564 | #include "clang/Basic/Sanitizers.def" |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3565 | |
| 3566 | ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++]; |
| 3567 | VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx); |
| 3568 | LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion); |
| 3569 | |
| 3570 | unsigned Length = Record[Idx++]; |
| 3571 | LangOpts.CurrentModule.assign(Record.begin() + Idx, |
| 3572 | Record.begin() + Idx + Length); |
| 3573 | return Listener.ReadLanguageOptions(LangOpts, Complain); |
| 3574 | } |
| 3575 | |
| 3576 | bool ASTReader::ParseTargetOptions(const RecordData &Record, |
| 3577 | bool Complain, |
| 3578 | ASTReaderListener &Listener) { |
| 3579 | unsigned Idx = 0; |
| 3580 | TargetOptions TargetOpts; |
| 3581 | TargetOpts.Triple = ReadString(Record, Idx); |
| 3582 | TargetOpts.CPU = ReadString(Record, Idx); |
| 3583 | TargetOpts.ABI = ReadString(Record, Idx); |
| 3584 | TargetOpts.CXXABI = ReadString(Record, Idx); |
| 3585 | TargetOpts.LinkerVersion = ReadString(Record, Idx); |
| 3586 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3587 | TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx)); |
| 3588 | } |
| 3589 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3590 | TargetOpts.Features.push_back(ReadString(Record, Idx)); |
| 3591 | } |
| 3592 | |
| 3593 | return Listener.ReadTargetOptions(TargetOpts, Complain); |
| 3594 | } |
| 3595 | |
| 3596 | bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain, |
| 3597 | ASTReaderListener &Listener) { |
| 3598 | DiagnosticOptions DiagOpts; |
| 3599 | unsigned Idx = 0; |
| 3600 | #define DIAGOPT(Name, Bits, Default) DiagOpts.Name = Record[Idx++]; |
| 3601 | #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ |
| 3602 | DiagOpts.set##Name(static_cast<Type>(Record[Idx++])); |
| 3603 | #include "clang/Basic/DiagnosticOptions.def" |
| 3604 | |
| 3605 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3606 | DiagOpts.Warnings.push_back(ReadString(Record, Idx)); |
| 3607 | } |
| 3608 | |
| 3609 | return Listener.ReadDiagnosticOptions(DiagOpts, Complain); |
| 3610 | } |
| 3611 | |
| 3612 | bool ASTReader::ParseFileSystemOptions(const RecordData &Record, bool Complain, |
| 3613 | ASTReaderListener &Listener) { |
| 3614 | FileSystemOptions FSOpts; |
| 3615 | unsigned Idx = 0; |
| 3616 | FSOpts.WorkingDir = ReadString(Record, Idx); |
| 3617 | return Listener.ReadFileSystemOptions(FSOpts, Complain); |
| 3618 | } |
| 3619 | |
| 3620 | bool ASTReader::ParseHeaderSearchOptions(const RecordData &Record, |
| 3621 | bool Complain, |
| 3622 | ASTReaderListener &Listener) { |
| 3623 | HeaderSearchOptions HSOpts; |
| 3624 | unsigned Idx = 0; |
| 3625 | HSOpts.Sysroot = ReadString(Record, Idx); |
| 3626 | |
| 3627 | // Include entries. |
| 3628 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3629 | std::string Path = ReadString(Record, Idx); |
| 3630 | frontend::IncludeDirGroup Group |
| 3631 | = static_cast<frontend::IncludeDirGroup>(Record[Idx++]); |
| 3632 | bool IsUserSupplied = Record[Idx++]; |
| 3633 | bool IsFramework = Record[Idx++]; |
| 3634 | bool IgnoreSysRoot = Record[Idx++]; |
| 3635 | bool IsInternal = Record[Idx++]; |
| 3636 | bool ImplicitExternC = Record[Idx++]; |
| 3637 | HSOpts.UserEntries.push_back( |
| 3638 | HeaderSearchOptions::Entry(Path, Group, IsUserSupplied, IsFramework, |
| 3639 | IgnoreSysRoot, IsInternal, ImplicitExternC)); |
| 3640 | } |
| 3641 | |
| 3642 | // System header prefixes. |
| 3643 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3644 | std::string Prefix = ReadString(Record, Idx); |
| 3645 | bool IsSystemHeader = Record[Idx++]; |
| 3646 | HSOpts.SystemHeaderPrefixes.push_back( |
| 3647 | HeaderSearchOptions::SystemHeaderPrefix(Prefix, IsSystemHeader)); |
| 3648 | } |
| 3649 | |
| 3650 | HSOpts.ResourceDir = ReadString(Record, Idx); |
| 3651 | HSOpts.ModuleCachePath = ReadString(Record, Idx); |
| 3652 | HSOpts.DisableModuleHash = Record[Idx++]; |
| 3653 | HSOpts.UseBuiltinIncludes = Record[Idx++]; |
| 3654 | HSOpts.UseStandardSystemIncludes = Record[Idx++]; |
| 3655 | HSOpts.UseStandardCXXIncludes = Record[Idx++]; |
| 3656 | HSOpts.UseLibcxx = Record[Idx++]; |
| 3657 | |
| 3658 | return Listener.ReadHeaderSearchOptions(HSOpts, Complain); |
| 3659 | } |
| 3660 | |
| 3661 | bool ASTReader::ParsePreprocessorOptions(const RecordData &Record, |
| 3662 | bool Complain, |
| 3663 | ASTReaderListener &Listener, |
| 3664 | std::string &SuggestedPredefines) { |
| 3665 | PreprocessorOptions PPOpts; |
| 3666 | unsigned Idx = 0; |
| 3667 | |
| 3668 | // Macro definitions/undefs |
| 3669 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3670 | std::string Macro = ReadString(Record, Idx); |
| 3671 | bool IsUndef = Record[Idx++]; |
| 3672 | PPOpts.Macros.push_back(std::make_pair(Macro, IsUndef)); |
| 3673 | } |
| 3674 | |
| 3675 | // Includes |
| 3676 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3677 | PPOpts.Includes.push_back(ReadString(Record, Idx)); |
| 3678 | } |
| 3679 | |
| 3680 | // Macro Includes |
| 3681 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3682 | PPOpts.MacroIncludes.push_back(ReadString(Record, Idx)); |
| 3683 | } |
| 3684 | |
| 3685 | PPOpts.UsePredefines = Record[Idx++]; |
| 3686 | PPOpts.ImplicitPCHInclude = ReadString(Record, Idx); |
| 3687 | PPOpts.ImplicitPTHInclude = ReadString(Record, Idx); |
| 3688 | PPOpts.ObjCXXARCStandardLibrary = |
| 3689 | static_cast<ObjCXXARCStandardLibraryKind>(Record[Idx++]); |
| 3690 | SuggestedPredefines.clear(); |
| 3691 | return Listener.ReadPreprocessorOptions(PPOpts, Complain, |
| 3692 | SuggestedPredefines); |
| 3693 | } |
| 3694 | |
| 3695 | std::pair<ModuleFile *, unsigned> |
| 3696 | ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) { |
| 3697 | GlobalPreprocessedEntityMapType::iterator |
| 3698 | I = GlobalPreprocessedEntityMap.find(GlobalIndex); |
| 3699 | assert(I != GlobalPreprocessedEntityMap.end() && |
| 3700 | "Corrupted global preprocessed entity map"); |
| 3701 | ModuleFile *M = I->second; |
| 3702 | unsigned LocalIndex = GlobalIndex - M->BasePreprocessedEntityID; |
| 3703 | return std::make_pair(M, LocalIndex); |
| 3704 | } |
| 3705 | |
| 3706 | std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> |
| 3707 | ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const { |
| 3708 | if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord()) |
| 3709 | return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID, |
| 3710 | Mod.NumPreprocessedEntities); |
| 3711 | |
| 3712 | return std::make_pair(PreprocessingRecord::iterator(), |
| 3713 | PreprocessingRecord::iterator()); |
| 3714 | } |
| 3715 | |
| 3716 | std::pair<ASTReader::ModuleDeclIterator, ASTReader::ModuleDeclIterator> |
| 3717 | ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) { |
| 3718 | return std::make_pair(ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls), |
| 3719 | ModuleDeclIterator(this, &Mod, |
| 3720 | Mod.FileSortedDecls + Mod.NumFileSortedDecls)); |
| 3721 | } |
| 3722 | |
| 3723 | PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) { |
| 3724 | PreprocessedEntityID PPID = Index+1; |
| 3725 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); |
| 3726 | ModuleFile &M = *PPInfo.first; |
| 3727 | unsigned LocalIndex = PPInfo.second; |
| 3728 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex]; |
| 3729 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3730 | if (!PP.getPreprocessingRecord()) { |
| 3731 | Error("no preprocessing record"); |
| 3732 | return 0; |
| 3733 | } |
| 3734 | |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 3735 | SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor); |
| 3736 | M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset); |
| 3737 | |
| 3738 | llvm::BitstreamEntry Entry = |
| 3739 | M.PreprocessorDetailCursor.advance(BitstreamCursor::AF_DontPopBlockAtEnd); |
| 3740 | if (Entry.Kind != llvm::BitstreamEntry::Record) |
| 3741 | return 0; |
| 3742 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3743 | // Read the record. |
| 3744 | SourceRange Range(ReadSourceLocation(M, PPOffs.Begin), |
| 3745 | ReadSourceLocation(M, PPOffs.End)); |
| 3746 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3747 | StringRef Blob; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3748 | RecordData Record; |
| 3749 | PreprocessorDetailRecordTypes RecType = |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3750 | (PreprocessorDetailRecordTypes)M.PreprocessorDetailCursor.readRecord( |
| 3751 | Entry.ID, Record, &Blob); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3752 | switch (RecType) { |
| 3753 | case PPD_MACRO_EXPANSION: { |
| 3754 | bool isBuiltin = Record[0]; |
| 3755 | IdentifierInfo *Name = 0; |
| 3756 | MacroDefinition *Def = 0; |
| 3757 | if (isBuiltin) |
| 3758 | Name = getLocalIdentifier(M, Record[1]); |
| 3759 | else { |
| 3760 | PreprocessedEntityID |
| 3761 | GlobalID = getGlobalPreprocessedEntityID(M, Record[1]); |
| 3762 | Def =cast<MacroDefinition>(PPRec.getLoadedPreprocessedEntity(GlobalID-1)); |
| 3763 | } |
| 3764 | |
| 3765 | MacroExpansion *ME; |
| 3766 | if (isBuiltin) |
| 3767 | ME = new (PPRec) MacroExpansion(Name, Range); |
| 3768 | else |
| 3769 | ME = new (PPRec) MacroExpansion(Def, Range); |
| 3770 | |
| 3771 | return ME; |
| 3772 | } |
| 3773 | |
| 3774 | case PPD_MACRO_DEFINITION: { |
| 3775 | // Decode the identifier info and then check again; if the macro is |
| 3776 | // still defined and associated with the identifier, |
| 3777 | IdentifierInfo *II = getLocalIdentifier(M, Record[0]); |
| 3778 | MacroDefinition *MD |
| 3779 | = new (PPRec) MacroDefinition(II, Range); |
| 3780 | |
| 3781 | if (DeserializationListener) |
| 3782 | DeserializationListener->MacroDefinitionRead(PPID, MD); |
| 3783 | |
| 3784 | return MD; |
| 3785 | } |
| 3786 | |
| 3787 | case PPD_INCLUSION_DIRECTIVE: { |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3788 | const char *FullFileNameStart = Blob.data() + Record[0]; |
| 3789 | StringRef FullFileName(FullFileNameStart, Blob.size() - Record[0]); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3790 | const FileEntry *File = 0; |
| 3791 | if (!FullFileName.empty()) |
| 3792 | File = PP.getFileManager().getFile(FullFileName); |
| 3793 | |
| 3794 | // FIXME: Stable encoding |
| 3795 | InclusionDirective::InclusionKind Kind |
| 3796 | = static_cast<InclusionDirective::InclusionKind>(Record[2]); |
| 3797 | InclusionDirective *ID |
| 3798 | = new (PPRec) InclusionDirective(PPRec, Kind, |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 3799 | StringRef(Blob.data(), Record[0]), |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3800 | Record[1], Record[3], |
| 3801 | File, |
| 3802 | Range); |
| 3803 | return ID; |
| 3804 | } |
| 3805 | } |
| 3806 | |
| 3807 | llvm_unreachable("Invalid PreprocessorDetailRecordTypes"); |
| 3808 | } |
| 3809 | |
| 3810 | /// \brief \arg SLocMapI points at a chunk of a module that contains no |
| 3811 | /// preprocessed entities or the entities it contains are not the ones we are |
| 3812 | /// looking for. Find the next module that contains entities and return the ID |
| 3813 | /// of the first entry. |
| 3814 | PreprocessedEntityID ASTReader::findNextPreprocessedEntity( |
| 3815 | GlobalSLocOffsetMapType::const_iterator SLocMapI) const { |
| 3816 | ++SLocMapI; |
| 3817 | for (GlobalSLocOffsetMapType::const_iterator |
| 3818 | EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) { |
| 3819 | ModuleFile &M = *SLocMapI->second; |
| 3820 | if (M.NumPreprocessedEntities) |
| 3821 | return M.BasePreprocessedEntityID; |
| 3822 | } |
| 3823 | |
| 3824 | return getTotalNumPreprocessedEntities(); |
| 3825 | } |
| 3826 | |
| 3827 | namespace { |
| 3828 | |
| 3829 | template <unsigned PPEntityOffset::*PPLoc> |
| 3830 | struct PPEntityComp { |
| 3831 | const ASTReader &Reader; |
| 3832 | ModuleFile &M; |
| 3833 | |
| 3834 | PPEntityComp(const ASTReader &Reader, ModuleFile &M) : Reader(Reader), M(M) { } |
| 3835 | |
| 3836 | bool operator()(const PPEntityOffset &L, const PPEntityOffset &R) const { |
| 3837 | SourceLocation LHS = getLoc(L); |
| 3838 | SourceLocation RHS = getLoc(R); |
| 3839 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 3840 | } |
| 3841 | |
| 3842 | bool operator()(const PPEntityOffset &L, SourceLocation RHS) const { |
| 3843 | SourceLocation LHS = getLoc(L); |
| 3844 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 3845 | } |
| 3846 | |
| 3847 | bool operator()(SourceLocation LHS, const PPEntityOffset &R) const { |
| 3848 | SourceLocation RHS = getLoc(R); |
| 3849 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 3850 | } |
| 3851 | |
| 3852 | SourceLocation getLoc(const PPEntityOffset &PPE) const { |
| 3853 | return Reader.ReadSourceLocation(M, PPE.*PPLoc); |
| 3854 | } |
| 3855 | }; |
| 3856 | |
| 3857 | } |
| 3858 | |
| 3859 | /// \brief Returns the first preprocessed entity ID that ends after \arg BLoc. |
| 3860 | PreprocessedEntityID |
| 3861 | ASTReader::findBeginPreprocessedEntity(SourceLocation BLoc) const { |
| 3862 | if (SourceMgr.isLocalSourceLocation(BLoc)) |
| 3863 | return getTotalNumPreprocessedEntities(); |
| 3864 | |
| 3865 | GlobalSLocOffsetMapType::const_iterator |
| 3866 | SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset - |
| 3867 | BLoc.getOffset()); |
| 3868 | assert(SLocMapI != GlobalSLocOffsetMap.end() && |
| 3869 | "Corrupted global sloc offset map"); |
| 3870 | |
| 3871 | if (SLocMapI->second->NumPreprocessedEntities == 0) |
| 3872 | return findNextPreprocessedEntity(SLocMapI); |
| 3873 | |
| 3874 | ModuleFile &M = *SLocMapI->second; |
| 3875 | typedef const PPEntityOffset *pp_iterator; |
| 3876 | pp_iterator pp_begin = M.PreprocessedEntityOffsets; |
| 3877 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities; |
| 3878 | |
| 3879 | size_t Count = M.NumPreprocessedEntities; |
| 3880 | size_t Half; |
| 3881 | pp_iterator First = pp_begin; |
| 3882 | pp_iterator PPI; |
| 3883 | |
| 3884 | // Do a binary search manually instead of using std::lower_bound because |
| 3885 | // The end locations of entities may be unordered (when a macro expansion |
| 3886 | // is inside another macro argument), but for this case it is not important |
| 3887 | // whether we get the first macro expansion or its containing macro. |
| 3888 | while (Count > 0) { |
| 3889 | Half = Count/2; |
| 3890 | PPI = First; |
| 3891 | std::advance(PPI, Half); |
| 3892 | if (SourceMgr.isBeforeInTranslationUnit(ReadSourceLocation(M, PPI->End), |
| 3893 | BLoc)){ |
| 3894 | First = PPI; |
| 3895 | ++First; |
| 3896 | Count = Count - Half - 1; |
| 3897 | } else |
| 3898 | Count = Half; |
| 3899 | } |
| 3900 | |
| 3901 | if (PPI == pp_end) |
| 3902 | return findNextPreprocessedEntity(SLocMapI); |
| 3903 | |
| 3904 | return M.BasePreprocessedEntityID + (PPI - pp_begin); |
| 3905 | } |
| 3906 | |
| 3907 | /// \brief Returns the first preprocessed entity ID that begins after \arg ELoc. |
| 3908 | PreprocessedEntityID |
| 3909 | ASTReader::findEndPreprocessedEntity(SourceLocation ELoc) const { |
| 3910 | if (SourceMgr.isLocalSourceLocation(ELoc)) |
| 3911 | return getTotalNumPreprocessedEntities(); |
| 3912 | |
| 3913 | GlobalSLocOffsetMapType::const_iterator |
| 3914 | SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset - |
| 3915 | ELoc.getOffset()); |
| 3916 | assert(SLocMapI != GlobalSLocOffsetMap.end() && |
| 3917 | "Corrupted global sloc offset map"); |
| 3918 | |
| 3919 | if (SLocMapI->second->NumPreprocessedEntities == 0) |
| 3920 | return findNextPreprocessedEntity(SLocMapI); |
| 3921 | |
| 3922 | ModuleFile &M = *SLocMapI->second; |
| 3923 | typedef const PPEntityOffset *pp_iterator; |
| 3924 | pp_iterator pp_begin = M.PreprocessedEntityOffsets; |
| 3925 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities; |
| 3926 | pp_iterator PPI = |
| 3927 | std::upper_bound(pp_begin, pp_end, ELoc, |
| 3928 | PPEntityComp<&PPEntityOffset::Begin>(*this, M)); |
| 3929 | |
| 3930 | if (PPI == pp_end) |
| 3931 | return findNextPreprocessedEntity(SLocMapI); |
| 3932 | |
| 3933 | return M.BasePreprocessedEntityID + (PPI - pp_begin); |
| 3934 | } |
| 3935 | |
| 3936 | /// \brief Returns a pair of [Begin, End) indices of preallocated |
| 3937 | /// preprocessed entities that \arg Range encompasses. |
| 3938 | std::pair<unsigned, unsigned> |
| 3939 | ASTReader::findPreprocessedEntitiesInRange(SourceRange Range) { |
| 3940 | if (Range.isInvalid()) |
| 3941 | return std::make_pair(0,0); |
| 3942 | assert(!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin())); |
| 3943 | |
| 3944 | PreprocessedEntityID BeginID = findBeginPreprocessedEntity(Range.getBegin()); |
| 3945 | PreprocessedEntityID EndID = findEndPreprocessedEntity(Range.getEnd()); |
| 3946 | return std::make_pair(BeginID, EndID); |
| 3947 | } |
| 3948 | |
| 3949 | /// \brief Optionally returns true or false if the preallocated preprocessed |
| 3950 | /// entity with index \arg Index came from file \arg FID. |
| 3951 | llvm::Optional<bool> ASTReader::isPreprocessedEntityInFileID(unsigned Index, |
| 3952 | FileID FID) { |
| 3953 | if (FID.isInvalid()) |
| 3954 | return false; |
| 3955 | |
| 3956 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); |
| 3957 | ModuleFile &M = *PPInfo.first; |
| 3958 | unsigned LocalIndex = PPInfo.second; |
| 3959 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex]; |
| 3960 | |
| 3961 | SourceLocation Loc = ReadSourceLocation(M, PPOffs.Begin); |
| 3962 | if (Loc.isInvalid()) |
| 3963 | return false; |
| 3964 | |
| 3965 | if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID)) |
| 3966 | return true; |
| 3967 | else |
| 3968 | return false; |
| 3969 | } |
| 3970 | |
| 3971 | namespace { |
| 3972 | /// \brief Visitor used to search for information about a header file. |
| 3973 | class HeaderFileInfoVisitor { |
| 3974 | ASTReader &Reader; |
| 3975 | const FileEntry *FE; |
| 3976 | |
| 3977 | llvm::Optional<HeaderFileInfo> HFI; |
| 3978 | |
| 3979 | public: |
| 3980 | HeaderFileInfoVisitor(ASTReader &Reader, const FileEntry *FE) |
| 3981 | : Reader(Reader), FE(FE) { } |
| 3982 | |
| 3983 | static bool visit(ModuleFile &M, void *UserData) { |
| 3984 | HeaderFileInfoVisitor *This |
| 3985 | = static_cast<HeaderFileInfoVisitor *>(UserData); |
| 3986 | |
| 3987 | HeaderFileInfoTrait Trait(This->Reader, M, |
| 3988 | &This->Reader.getPreprocessor().getHeaderSearchInfo(), |
| 3989 | M.HeaderFileFrameworkStrings, |
| 3990 | This->FE->getName()); |
| 3991 | |
| 3992 | HeaderFileInfoLookupTable *Table |
| 3993 | = static_cast<HeaderFileInfoLookupTable *>(M.HeaderFileInfoTable); |
| 3994 | if (!Table) |
| 3995 | return false; |
| 3996 | |
| 3997 | // Look in the on-disk hash table for an entry for this file name. |
| 3998 | HeaderFileInfoLookupTable::iterator Pos = Table->find(This->FE->getName(), |
| 3999 | &Trait); |
| 4000 | if (Pos == Table->end()) |
| 4001 | return false; |
| 4002 | |
| 4003 | This->HFI = *Pos; |
| 4004 | return true; |
| 4005 | } |
| 4006 | |
| 4007 | llvm::Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; } |
| 4008 | }; |
| 4009 | } |
| 4010 | |
| 4011 | HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) { |
| 4012 | HeaderFileInfoVisitor Visitor(*this, FE); |
| 4013 | ModuleMgr.visit(&HeaderFileInfoVisitor::visit, &Visitor); |
| 4014 | if (llvm::Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo()) { |
| 4015 | if (Listener) |
| 4016 | Listener->ReadHeaderFileInfo(*HFI, FE->getUID()); |
| 4017 | return *HFI; |
| 4018 | } |
| 4019 | |
| 4020 | return HeaderFileInfo(); |
| 4021 | } |
| 4022 | |
| 4023 | void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) { |
| 4024 | // FIXME: Make it work properly with modules. |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 4025 | SmallVector<DiagnosticsEngine::DiagState *, 32> DiagStates; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4026 | for (ModuleIterator I = ModuleMgr.begin(), E = ModuleMgr.end(); I != E; ++I) { |
| 4027 | ModuleFile &F = *(*I); |
| 4028 | unsigned Idx = 0; |
| 4029 | DiagStates.clear(); |
| 4030 | assert(!Diag.DiagStates.empty()); |
| 4031 | DiagStates.push_back(&Diag.DiagStates.front()); // the command-line one. |
| 4032 | while (Idx < F.PragmaDiagMappings.size()) { |
| 4033 | SourceLocation Loc = ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]); |
| 4034 | unsigned DiagStateID = F.PragmaDiagMappings[Idx++]; |
| 4035 | if (DiagStateID != 0) { |
| 4036 | Diag.DiagStatePoints.push_back( |
| 4037 | DiagnosticsEngine::DiagStatePoint(DiagStates[DiagStateID-1], |
| 4038 | FullSourceLoc(Loc, SourceMgr))); |
| 4039 | continue; |
| 4040 | } |
| 4041 | |
| 4042 | assert(DiagStateID == 0); |
| 4043 | // A new DiagState was created here. |
| 4044 | Diag.DiagStates.push_back(*Diag.GetCurDiagState()); |
| 4045 | DiagnosticsEngine::DiagState *NewState = &Diag.DiagStates.back(); |
| 4046 | DiagStates.push_back(NewState); |
| 4047 | Diag.DiagStatePoints.push_back( |
| 4048 | DiagnosticsEngine::DiagStatePoint(NewState, |
| 4049 | FullSourceLoc(Loc, SourceMgr))); |
| 4050 | while (1) { |
| 4051 | assert(Idx < F.PragmaDiagMappings.size() && |
| 4052 | "Invalid data, didn't find '-1' marking end of diag/map pairs"); |
| 4053 | if (Idx >= F.PragmaDiagMappings.size()) { |
| 4054 | break; // Something is messed up but at least avoid infinite loop in |
| 4055 | // release build. |
| 4056 | } |
| 4057 | unsigned DiagID = F.PragmaDiagMappings[Idx++]; |
| 4058 | if (DiagID == (unsigned)-1) { |
| 4059 | break; // no more diag/map pairs for this location. |
| 4060 | } |
| 4061 | diag::Mapping Map = (diag::Mapping)F.PragmaDiagMappings[Idx++]; |
| 4062 | DiagnosticMappingInfo MappingInfo = Diag.makeMappingInfo(Map, Loc); |
| 4063 | Diag.GetCurDiagState()->setMappingInfo(DiagID, MappingInfo); |
| 4064 | } |
| 4065 | } |
| 4066 | } |
| 4067 | } |
| 4068 | |
| 4069 | /// \brief Get the correct cursor and offset for loading a type. |
| 4070 | ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) { |
| 4071 | GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index); |
| 4072 | assert(I != GlobalTypeMap.end() && "Corrupted global type map"); |
| 4073 | ModuleFile *M = I->second; |
| 4074 | return RecordLocation(M, M->TypeOffsets[Index - M->BaseTypeIndex]); |
| 4075 | } |
| 4076 | |
| 4077 | /// \brief Read and return the type with the given index.. |
| 4078 | /// |
| 4079 | /// The index is the type ID, shifted and minus the number of predefs. This |
| 4080 | /// routine actually reads the record corresponding to the type at the given |
| 4081 | /// location. It is a helper routine for GetType, which deals with reading type |
| 4082 | /// IDs. |
| 4083 | QualType ASTReader::readTypeRecord(unsigned Index) { |
| 4084 | RecordLocation Loc = TypeCursorForIndex(Index); |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 4085 | BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4086 | |
| 4087 | // Keep track of where we are in the stream, then jump back there |
| 4088 | // after reading this type. |
| 4089 | SavedStreamPosition SavedPosition(DeclsCursor); |
| 4090 | |
| 4091 | ReadingKindTracker ReadingKind(Read_Type, *this); |
| 4092 | |
| 4093 | // Note that we are loading a type record. |
| 4094 | Deserializing AType(this); |
| 4095 | |
| 4096 | unsigned Idx = 0; |
| 4097 | DeclsCursor.JumpToBit(Loc.Offset); |
| 4098 | RecordData Record; |
| 4099 | unsigned Code = DeclsCursor.ReadCode(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 4100 | switch ((TypeCode)DeclsCursor.readRecord(Code, Record)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4101 | case TYPE_EXT_QUAL: { |
| 4102 | if (Record.size() != 2) { |
| 4103 | Error("Incorrect encoding of extended qualifier type"); |
| 4104 | return QualType(); |
| 4105 | } |
| 4106 | QualType Base = readType(*Loc.F, Record, Idx); |
| 4107 | Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[Idx++]); |
| 4108 | return Context.getQualifiedType(Base, Quals); |
| 4109 | } |
| 4110 | |
| 4111 | case TYPE_COMPLEX: { |
| 4112 | if (Record.size() != 1) { |
| 4113 | Error("Incorrect encoding of complex type"); |
| 4114 | return QualType(); |
| 4115 | } |
| 4116 | QualType ElemType = readType(*Loc.F, Record, Idx); |
| 4117 | return Context.getComplexType(ElemType); |
| 4118 | } |
| 4119 | |
| 4120 | case TYPE_POINTER: { |
| 4121 | if (Record.size() != 1) { |
| 4122 | Error("Incorrect encoding of pointer type"); |
| 4123 | return QualType(); |
| 4124 | } |
| 4125 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4126 | return Context.getPointerType(PointeeType); |
| 4127 | } |
| 4128 | |
| 4129 | case TYPE_BLOCK_POINTER: { |
| 4130 | if (Record.size() != 1) { |
| 4131 | Error("Incorrect encoding of block pointer type"); |
| 4132 | return QualType(); |
| 4133 | } |
| 4134 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4135 | return Context.getBlockPointerType(PointeeType); |
| 4136 | } |
| 4137 | |
| 4138 | case TYPE_LVALUE_REFERENCE: { |
| 4139 | if (Record.size() != 2) { |
| 4140 | Error("Incorrect encoding of lvalue reference type"); |
| 4141 | return QualType(); |
| 4142 | } |
| 4143 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4144 | return Context.getLValueReferenceType(PointeeType, Record[1]); |
| 4145 | } |
| 4146 | |
| 4147 | case TYPE_RVALUE_REFERENCE: { |
| 4148 | if (Record.size() != 1) { |
| 4149 | Error("Incorrect encoding of rvalue reference type"); |
| 4150 | return QualType(); |
| 4151 | } |
| 4152 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4153 | return Context.getRValueReferenceType(PointeeType); |
| 4154 | } |
| 4155 | |
| 4156 | case TYPE_MEMBER_POINTER: { |
| 4157 | if (Record.size() != 2) { |
| 4158 | Error("Incorrect encoding of member pointer type"); |
| 4159 | return QualType(); |
| 4160 | } |
| 4161 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4162 | QualType ClassType = readType(*Loc.F, Record, Idx); |
| 4163 | if (PointeeType.isNull() || ClassType.isNull()) |
| 4164 | return QualType(); |
| 4165 | |
| 4166 | return Context.getMemberPointerType(PointeeType, ClassType.getTypePtr()); |
| 4167 | } |
| 4168 | |
| 4169 | case TYPE_CONSTANT_ARRAY: { |
| 4170 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4171 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; |
| 4172 | unsigned IndexTypeQuals = Record[2]; |
| 4173 | unsigned Idx = 3; |
| 4174 | llvm::APInt Size = ReadAPInt(Record, Idx); |
| 4175 | return Context.getConstantArrayType(ElementType, Size, |
| 4176 | ASM, IndexTypeQuals); |
| 4177 | } |
| 4178 | |
| 4179 | case TYPE_INCOMPLETE_ARRAY: { |
| 4180 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4181 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; |
| 4182 | unsigned IndexTypeQuals = Record[2]; |
| 4183 | return Context.getIncompleteArrayType(ElementType, ASM, IndexTypeQuals); |
| 4184 | } |
| 4185 | |
| 4186 | case TYPE_VARIABLE_ARRAY: { |
| 4187 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4188 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; |
| 4189 | unsigned IndexTypeQuals = Record[2]; |
| 4190 | SourceLocation LBLoc = ReadSourceLocation(*Loc.F, Record[3]); |
| 4191 | SourceLocation RBLoc = ReadSourceLocation(*Loc.F, Record[4]); |
| 4192 | return Context.getVariableArrayType(ElementType, ReadExpr(*Loc.F), |
| 4193 | ASM, IndexTypeQuals, |
| 4194 | SourceRange(LBLoc, RBLoc)); |
| 4195 | } |
| 4196 | |
| 4197 | case TYPE_VECTOR: { |
| 4198 | if (Record.size() != 3) { |
| 4199 | Error("incorrect encoding of vector type in AST file"); |
| 4200 | return QualType(); |
| 4201 | } |
| 4202 | |
| 4203 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4204 | unsigned NumElements = Record[1]; |
| 4205 | unsigned VecKind = Record[2]; |
| 4206 | return Context.getVectorType(ElementType, NumElements, |
| 4207 | (VectorType::VectorKind)VecKind); |
| 4208 | } |
| 4209 | |
| 4210 | case TYPE_EXT_VECTOR: { |
| 4211 | if (Record.size() != 3) { |
| 4212 | Error("incorrect encoding of extended vector type in AST file"); |
| 4213 | return QualType(); |
| 4214 | } |
| 4215 | |
| 4216 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4217 | unsigned NumElements = Record[1]; |
| 4218 | return Context.getExtVectorType(ElementType, NumElements); |
| 4219 | } |
| 4220 | |
| 4221 | case TYPE_FUNCTION_NO_PROTO: { |
| 4222 | if (Record.size() != 6) { |
| 4223 | Error("incorrect encoding of no-proto function type"); |
| 4224 | return QualType(); |
| 4225 | } |
| 4226 | QualType ResultType = readType(*Loc.F, Record, Idx); |
| 4227 | FunctionType::ExtInfo Info(Record[1], Record[2], Record[3], |
| 4228 | (CallingConv)Record[4], Record[5]); |
| 4229 | return Context.getFunctionNoProtoType(ResultType, Info); |
| 4230 | } |
| 4231 | |
| 4232 | case TYPE_FUNCTION_PROTO: { |
| 4233 | QualType ResultType = readType(*Loc.F, Record, Idx); |
| 4234 | |
| 4235 | FunctionProtoType::ExtProtoInfo EPI; |
| 4236 | EPI.ExtInfo = FunctionType::ExtInfo(/*noreturn*/ Record[1], |
| 4237 | /*hasregparm*/ Record[2], |
| 4238 | /*regparm*/ Record[3], |
| 4239 | static_cast<CallingConv>(Record[4]), |
| 4240 | /*produces*/ Record[5]); |
| 4241 | |
| 4242 | unsigned Idx = 6; |
| 4243 | unsigned NumParams = Record[Idx++]; |
| 4244 | SmallVector<QualType, 16> ParamTypes; |
| 4245 | for (unsigned I = 0; I != NumParams; ++I) |
| 4246 | ParamTypes.push_back(readType(*Loc.F, Record, Idx)); |
| 4247 | |
| 4248 | EPI.Variadic = Record[Idx++]; |
| 4249 | EPI.HasTrailingReturn = Record[Idx++]; |
| 4250 | EPI.TypeQuals = Record[Idx++]; |
| 4251 | EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]); |
| 4252 | ExceptionSpecificationType EST = |
| 4253 | static_cast<ExceptionSpecificationType>(Record[Idx++]); |
| 4254 | EPI.ExceptionSpecType = EST; |
| 4255 | SmallVector<QualType, 2> Exceptions; |
| 4256 | if (EST == EST_Dynamic) { |
| 4257 | EPI.NumExceptions = Record[Idx++]; |
| 4258 | for (unsigned I = 0; I != EPI.NumExceptions; ++I) |
| 4259 | Exceptions.push_back(readType(*Loc.F, Record, Idx)); |
| 4260 | EPI.Exceptions = Exceptions.data(); |
| 4261 | } else if (EST == EST_ComputedNoexcept) { |
| 4262 | EPI.NoexceptExpr = ReadExpr(*Loc.F); |
| 4263 | } else if (EST == EST_Uninstantiated) { |
| 4264 | EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx); |
| 4265 | EPI.ExceptionSpecTemplate = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx); |
| 4266 | } else if (EST == EST_Unevaluated) { |
| 4267 | EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx); |
| 4268 | } |
| 4269 | return Context.getFunctionType(ResultType, ParamTypes.data(), NumParams, |
| 4270 | EPI); |
| 4271 | } |
| 4272 | |
| 4273 | case TYPE_UNRESOLVED_USING: { |
| 4274 | unsigned Idx = 0; |
| 4275 | return Context.getTypeDeclType( |
| 4276 | ReadDeclAs<UnresolvedUsingTypenameDecl>(*Loc.F, Record, Idx)); |
| 4277 | } |
| 4278 | |
| 4279 | case TYPE_TYPEDEF: { |
| 4280 | if (Record.size() != 2) { |
| 4281 | Error("incorrect encoding of typedef type"); |
| 4282 | return QualType(); |
| 4283 | } |
| 4284 | unsigned Idx = 0; |
| 4285 | TypedefNameDecl *Decl = ReadDeclAs<TypedefNameDecl>(*Loc.F, Record, Idx); |
| 4286 | QualType Canonical = readType(*Loc.F, Record, Idx); |
| 4287 | if (!Canonical.isNull()) |
| 4288 | Canonical = Context.getCanonicalType(Canonical); |
| 4289 | return Context.getTypedefType(Decl, Canonical); |
| 4290 | } |
| 4291 | |
| 4292 | case TYPE_TYPEOF_EXPR: |
| 4293 | return Context.getTypeOfExprType(ReadExpr(*Loc.F)); |
| 4294 | |
| 4295 | case TYPE_TYPEOF: { |
| 4296 | if (Record.size() != 1) { |
| 4297 | Error("incorrect encoding of typeof(type) in AST file"); |
| 4298 | return QualType(); |
| 4299 | } |
| 4300 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); |
| 4301 | return Context.getTypeOfType(UnderlyingType); |
| 4302 | } |
| 4303 | |
| 4304 | case TYPE_DECLTYPE: { |
| 4305 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); |
| 4306 | return Context.getDecltypeType(ReadExpr(*Loc.F), UnderlyingType); |
| 4307 | } |
| 4308 | |
| 4309 | case TYPE_UNARY_TRANSFORM: { |
| 4310 | QualType BaseType = readType(*Loc.F, Record, Idx); |
| 4311 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); |
| 4312 | UnaryTransformType::UTTKind UKind = (UnaryTransformType::UTTKind)Record[2]; |
| 4313 | return Context.getUnaryTransformType(BaseType, UnderlyingType, UKind); |
| 4314 | } |
| 4315 | |
| 4316 | case TYPE_AUTO: |
| 4317 | return Context.getAutoType(readType(*Loc.F, Record, Idx)); |
| 4318 | |
| 4319 | case TYPE_RECORD: { |
| 4320 | if (Record.size() != 2) { |
| 4321 | Error("incorrect encoding of record type"); |
| 4322 | return QualType(); |
| 4323 | } |
| 4324 | unsigned Idx = 0; |
| 4325 | bool IsDependent = Record[Idx++]; |
| 4326 | RecordDecl *RD = ReadDeclAs<RecordDecl>(*Loc.F, Record, Idx); |
| 4327 | RD = cast_or_null<RecordDecl>(RD->getCanonicalDecl()); |
| 4328 | QualType T = Context.getRecordType(RD); |
| 4329 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); |
| 4330 | return T; |
| 4331 | } |
| 4332 | |
| 4333 | case TYPE_ENUM: { |
| 4334 | if (Record.size() != 2) { |
| 4335 | Error("incorrect encoding of enum type"); |
| 4336 | return QualType(); |
| 4337 | } |
| 4338 | unsigned Idx = 0; |
| 4339 | bool IsDependent = Record[Idx++]; |
| 4340 | QualType T |
| 4341 | = Context.getEnumType(ReadDeclAs<EnumDecl>(*Loc.F, Record, Idx)); |
| 4342 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); |
| 4343 | return T; |
| 4344 | } |
| 4345 | |
| 4346 | case TYPE_ATTRIBUTED: { |
| 4347 | if (Record.size() != 3) { |
| 4348 | Error("incorrect encoding of attributed type"); |
| 4349 | return QualType(); |
| 4350 | } |
| 4351 | QualType modifiedType = readType(*Loc.F, Record, Idx); |
| 4352 | QualType equivalentType = readType(*Loc.F, Record, Idx); |
| 4353 | AttributedType::Kind kind = static_cast<AttributedType::Kind>(Record[2]); |
| 4354 | return Context.getAttributedType(kind, modifiedType, equivalentType); |
| 4355 | } |
| 4356 | |
| 4357 | case TYPE_PAREN: { |
| 4358 | if (Record.size() != 1) { |
| 4359 | Error("incorrect encoding of paren type"); |
| 4360 | return QualType(); |
| 4361 | } |
| 4362 | QualType InnerType = readType(*Loc.F, Record, Idx); |
| 4363 | return Context.getParenType(InnerType); |
| 4364 | } |
| 4365 | |
| 4366 | case TYPE_PACK_EXPANSION: { |
| 4367 | if (Record.size() != 2) { |
| 4368 | Error("incorrect encoding of pack expansion type"); |
| 4369 | return QualType(); |
| 4370 | } |
| 4371 | QualType Pattern = readType(*Loc.F, Record, Idx); |
| 4372 | if (Pattern.isNull()) |
| 4373 | return QualType(); |
| 4374 | llvm::Optional<unsigned> NumExpansions; |
| 4375 | if (Record[1]) |
| 4376 | NumExpansions = Record[1] - 1; |
| 4377 | return Context.getPackExpansionType(Pattern, NumExpansions); |
| 4378 | } |
| 4379 | |
| 4380 | case TYPE_ELABORATED: { |
| 4381 | unsigned Idx = 0; |
| 4382 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; |
| 4383 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); |
| 4384 | QualType NamedType = readType(*Loc.F, Record, Idx); |
| 4385 | return Context.getElaboratedType(Keyword, NNS, NamedType); |
| 4386 | } |
| 4387 | |
| 4388 | case TYPE_OBJC_INTERFACE: { |
| 4389 | unsigned Idx = 0; |
| 4390 | ObjCInterfaceDecl *ItfD |
| 4391 | = ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx); |
| 4392 | return Context.getObjCInterfaceType(ItfD->getCanonicalDecl()); |
| 4393 | } |
| 4394 | |
| 4395 | case TYPE_OBJC_OBJECT: { |
| 4396 | unsigned Idx = 0; |
| 4397 | QualType Base = readType(*Loc.F, Record, Idx); |
| 4398 | unsigned NumProtos = Record[Idx++]; |
| 4399 | SmallVector<ObjCProtocolDecl*, 4> Protos; |
| 4400 | for (unsigned I = 0; I != NumProtos; ++I) |
| 4401 | Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx)); |
| 4402 | return Context.getObjCObjectType(Base, Protos.data(), NumProtos); |
| 4403 | } |
| 4404 | |
| 4405 | case TYPE_OBJC_OBJECT_POINTER: { |
| 4406 | unsigned Idx = 0; |
| 4407 | QualType Pointee = readType(*Loc.F, Record, Idx); |
| 4408 | return Context.getObjCObjectPointerType(Pointee); |
| 4409 | } |
| 4410 | |
| 4411 | case TYPE_SUBST_TEMPLATE_TYPE_PARM: { |
| 4412 | unsigned Idx = 0; |
| 4413 | QualType Parm = readType(*Loc.F, Record, Idx); |
| 4414 | QualType Replacement = readType(*Loc.F, Record, Idx); |
| 4415 | return |
| 4416 | Context.getSubstTemplateTypeParmType(cast<TemplateTypeParmType>(Parm), |
| 4417 | Replacement); |
| 4418 | } |
| 4419 | |
| 4420 | case TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK: { |
| 4421 | unsigned Idx = 0; |
| 4422 | QualType Parm = readType(*Loc.F, Record, Idx); |
| 4423 | TemplateArgument ArgPack = ReadTemplateArgument(*Loc.F, Record, Idx); |
| 4424 | return Context.getSubstTemplateTypeParmPackType( |
| 4425 | cast<TemplateTypeParmType>(Parm), |
| 4426 | ArgPack); |
| 4427 | } |
| 4428 | |
| 4429 | case TYPE_INJECTED_CLASS_NAME: { |
| 4430 | CXXRecordDecl *D = ReadDeclAs<CXXRecordDecl>(*Loc.F, Record, Idx); |
| 4431 | QualType TST = readType(*Loc.F, Record, Idx); // probably derivable |
| 4432 | // FIXME: ASTContext::getInjectedClassNameType is not currently suitable |
| 4433 | // for AST reading, too much interdependencies. |
| 4434 | return |
| 4435 | QualType(new (Context, TypeAlignment) InjectedClassNameType(D, TST), 0); |
| 4436 | } |
| 4437 | |
| 4438 | case TYPE_TEMPLATE_TYPE_PARM: { |
| 4439 | unsigned Idx = 0; |
| 4440 | unsigned Depth = Record[Idx++]; |
| 4441 | unsigned Index = Record[Idx++]; |
| 4442 | bool Pack = Record[Idx++]; |
| 4443 | TemplateTypeParmDecl *D |
| 4444 | = ReadDeclAs<TemplateTypeParmDecl>(*Loc.F, Record, Idx); |
| 4445 | return Context.getTemplateTypeParmType(Depth, Index, Pack, D); |
| 4446 | } |
| 4447 | |
| 4448 | case TYPE_DEPENDENT_NAME: { |
| 4449 | unsigned Idx = 0; |
| 4450 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; |
| 4451 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); |
| 4452 | const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx); |
| 4453 | QualType Canon = readType(*Loc.F, Record, Idx); |
| 4454 | if (!Canon.isNull()) |
| 4455 | Canon = Context.getCanonicalType(Canon); |
| 4456 | return Context.getDependentNameType(Keyword, NNS, Name, Canon); |
| 4457 | } |
| 4458 | |
| 4459 | case TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: { |
| 4460 | unsigned Idx = 0; |
| 4461 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; |
| 4462 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); |
| 4463 | const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx); |
| 4464 | unsigned NumArgs = Record[Idx++]; |
| 4465 | SmallVector<TemplateArgument, 8> Args; |
| 4466 | Args.reserve(NumArgs); |
| 4467 | while (NumArgs--) |
| 4468 | Args.push_back(ReadTemplateArgument(*Loc.F, Record, Idx)); |
| 4469 | return Context.getDependentTemplateSpecializationType(Keyword, NNS, Name, |
| 4470 | Args.size(), Args.data()); |
| 4471 | } |
| 4472 | |
| 4473 | case TYPE_DEPENDENT_SIZED_ARRAY: { |
| 4474 | unsigned Idx = 0; |
| 4475 | |
| 4476 | // ArrayType |
| 4477 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4478 | ArrayType::ArraySizeModifier ASM |
| 4479 | = (ArrayType::ArraySizeModifier)Record[Idx++]; |
| 4480 | unsigned IndexTypeQuals = Record[Idx++]; |
| 4481 | |
| 4482 | // DependentSizedArrayType |
| 4483 | Expr *NumElts = ReadExpr(*Loc.F); |
| 4484 | SourceRange Brackets = ReadSourceRange(*Loc.F, Record, Idx); |
| 4485 | |
| 4486 | return Context.getDependentSizedArrayType(ElementType, NumElts, ASM, |
| 4487 | IndexTypeQuals, Brackets); |
| 4488 | } |
| 4489 | |
| 4490 | case TYPE_TEMPLATE_SPECIALIZATION: { |
| 4491 | unsigned Idx = 0; |
| 4492 | bool IsDependent = Record[Idx++]; |
| 4493 | TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx); |
| 4494 | SmallVector<TemplateArgument, 8> Args; |
| 4495 | ReadTemplateArgumentList(Args, *Loc.F, Record, Idx); |
| 4496 | QualType Underlying = readType(*Loc.F, Record, Idx); |
| 4497 | QualType T; |
| 4498 | if (Underlying.isNull()) |
| 4499 | T = Context.getCanonicalTemplateSpecializationType(Name, Args.data(), |
| 4500 | Args.size()); |
| 4501 | else |
| 4502 | T = Context.getTemplateSpecializationType(Name, Args.data(), |
| 4503 | Args.size(), Underlying); |
| 4504 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); |
| 4505 | return T; |
| 4506 | } |
| 4507 | |
| 4508 | case TYPE_ATOMIC: { |
| 4509 | if (Record.size() != 1) { |
| 4510 | Error("Incorrect encoding of atomic type"); |
| 4511 | return QualType(); |
| 4512 | } |
| 4513 | QualType ValueType = readType(*Loc.F, Record, Idx); |
| 4514 | return Context.getAtomicType(ValueType); |
| 4515 | } |
| 4516 | } |
| 4517 | llvm_unreachable("Invalid TypeCode!"); |
| 4518 | } |
| 4519 | |
| 4520 | class clang::TypeLocReader : public TypeLocVisitor<TypeLocReader> { |
| 4521 | ASTReader &Reader; |
| 4522 | ModuleFile &F; |
| 4523 | const ASTReader::RecordData &Record; |
| 4524 | unsigned &Idx; |
| 4525 | |
| 4526 | SourceLocation ReadSourceLocation(const ASTReader::RecordData &R, |
| 4527 | unsigned &I) { |
| 4528 | return Reader.ReadSourceLocation(F, R, I); |
| 4529 | } |
| 4530 | |
| 4531 | template<typename T> |
| 4532 | T *ReadDeclAs(const ASTReader::RecordData &Record, unsigned &Idx) { |
| 4533 | return Reader.ReadDeclAs<T>(F, Record, Idx); |
| 4534 | } |
| 4535 | |
| 4536 | public: |
| 4537 | TypeLocReader(ASTReader &Reader, ModuleFile &F, |
| 4538 | const ASTReader::RecordData &Record, unsigned &Idx) |
| 4539 | : Reader(Reader), F(F), Record(Record), Idx(Idx) |
| 4540 | { } |
| 4541 | |
| 4542 | // We want compile-time assurance that we've enumerated all of |
| 4543 | // these, so unfortunately we have to declare them first, then |
| 4544 | // define them out-of-line. |
| 4545 | #define ABSTRACT_TYPELOC(CLASS, PARENT) |
| 4546 | #define TYPELOC(CLASS, PARENT) \ |
| 4547 | void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc); |
| 4548 | #include "clang/AST/TypeLocNodes.def" |
| 4549 | |
| 4550 | void VisitFunctionTypeLoc(FunctionTypeLoc); |
| 4551 | void VisitArrayTypeLoc(ArrayTypeLoc); |
| 4552 | }; |
| 4553 | |
| 4554 | void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { |
| 4555 | // nothing to do |
| 4556 | } |
| 4557 | void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { |
| 4558 | TL.setBuiltinLoc(ReadSourceLocation(Record, Idx)); |
| 4559 | if (TL.needsExtraLocalData()) { |
| 4560 | TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++])); |
| 4561 | TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++])); |
| 4562 | TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++])); |
| 4563 | TL.setModeAttr(Record[Idx++]); |
| 4564 | } |
| 4565 | } |
| 4566 | void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) { |
| 4567 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4568 | } |
| 4569 | void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) { |
| 4570 | TL.setStarLoc(ReadSourceLocation(Record, Idx)); |
| 4571 | } |
| 4572 | void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { |
| 4573 | TL.setCaretLoc(ReadSourceLocation(Record, Idx)); |
| 4574 | } |
| 4575 | void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { |
| 4576 | TL.setAmpLoc(ReadSourceLocation(Record, Idx)); |
| 4577 | } |
| 4578 | void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { |
| 4579 | TL.setAmpAmpLoc(ReadSourceLocation(Record, Idx)); |
| 4580 | } |
| 4581 | void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { |
| 4582 | TL.setStarLoc(ReadSourceLocation(Record, Idx)); |
| 4583 | TL.setClassTInfo(Reader.GetTypeSourceInfo(F, Record, Idx)); |
| 4584 | } |
| 4585 | void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) { |
| 4586 | TL.setLBracketLoc(ReadSourceLocation(Record, Idx)); |
| 4587 | TL.setRBracketLoc(ReadSourceLocation(Record, Idx)); |
| 4588 | if (Record[Idx++]) |
| 4589 | TL.setSizeExpr(Reader.ReadExpr(F)); |
| 4590 | else |
| 4591 | TL.setSizeExpr(0); |
| 4592 | } |
| 4593 | void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) { |
| 4594 | VisitArrayTypeLoc(TL); |
| 4595 | } |
| 4596 | void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) { |
| 4597 | VisitArrayTypeLoc(TL); |
| 4598 | } |
| 4599 | void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) { |
| 4600 | VisitArrayTypeLoc(TL); |
| 4601 | } |
| 4602 | void TypeLocReader::VisitDependentSizedArrayTypeLoc( |
| 4603 | DependentSizedArrayTypeLoc TL) { |
| 4604 | VisitArrayTypeLoc(TL); |
| 4605 | } |
| 4606 | void TypeLocReader::VisitDependentSizedExtVectorTypeLoc( |
| 4607 | DependentSizedExtVectorTypeLoc TL) { |
| 4608 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4609 | } |
| 4610 | void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) { |
| 4611 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4612 | } |
| 4613 | void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) { |
| 4614 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4615 | } |
| 4616 | void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) { |
| 4617 | TL.setLocalRangeBegin(ReadSourceLocation(Record, Idx)); |
| 4618 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4619 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4620 | TL.setLocalRangeEnd(ReadSourceLocation(Record, Idx)); |
| 4621 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) { |
| 4622 | TL.setArg(i, ReadDeclAs<ParmVarDecl>(Record, Idx)); |
| 4623 | } |
| 4624 | } |
| 4625 | void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) { |
| 4626 | VisitFunctionTypeLoc(TL); |
| 4627 | } |
| 4628 | void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) { |
| 4629 | VisitFunctionTypeLoc(TL); |
| 4630 | } |
| 4631 | void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) { |
| 4632 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4633 | } |
| 4634 | void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) { |
| 4635 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4636 | } |
| 4637 | void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { |
| 4638 | TL.setTypeofLoc(ReadSourceLocation(Record, Idx)); |
| 4639 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4640 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4641 | } |
| 4642 | void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { |
| 4643 | TL.setTypeofLoc(ReadSourceLocation(Record, Idx)); |
| 4644 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4645 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4646 | TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx)); |
| 4647 | } |
| 4648 | void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) { |
| 4649 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4650 | } |
| 4651 | void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { |
| 4652 | TL.setKWLoc(ReadSourceLocation(Record, Idx)); |
| 4653 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4654 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4655 | TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx)); |
| 4656 | } |
| 4657 | void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) { |
| 4658 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4659 | } |
| 4660 | void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) { |
| 4661 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4662 | } |
| 4663 | void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) { |
| 4664 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4665 | } |
| 4666 | void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) { |
| 4667 | TL.setAttrNameLoc(ReadSourceLocation(Record, Idx)); |
| 4668 | if (TL.hasAttrOperand()) { |
| 4669 | SourceRange range; |
| 4670 | range.setBegin(ReadSourceLocation(Record, Idx)); |
| 4671 | range.setEnd(ReadSourceLocation(Record, Idx)); |
| 4672 | TL.setAttrOperandParensRange(range); |
| 4673 | } |
| 4674 | if (TL.hasAttrExprOperand()) { |
| 4675 | if (Record[Idx++]) |
| 4676 | TL.setAttrExprOperand(Reader.ReadExpr(F)); |
| 4677 | else |
| 4678 | TL.setAttrExprOperand(0); |
| 4679 | } else if (TL.hasAttrEnumOperand()) |
| 4680 | TL.setAttrEnumOperandLoc(ReadSourceLocation(Record, Idx)); |
| 4681 | } |
| 4682 | void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) { |
| 4683 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4684 | } |
| 4685 | void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc( |
| 4686 | SubstTemplateTypeParmTypeLoc TL) { |
| 4687 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4688 | } |
| 4689 | void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc( |
| 4690 | SubstTemplateTypeParmPackTypeLoc TL) { |
| 4691 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4692 | } |
| 4693 | void TypeLocReader::VisitTemplateSpecializationTypeLoc( |
| 4694 | TemplateSpecializationTypeLoc TL) { |
| 4695 | TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4696 | TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx)); |
| 4697 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4698 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4699 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) |
| 4700 | TL.setArgLocInfo(i, |
| 4701 | Reader.GetTemplateArgumentLocInfo(F, |
| 4702 | TL.getTypePtr()->getArg(i).getKind(), |
| 4703 | Record, Idx)); |
| 4704 | } |
| 4705 | void TypeLocReader::VisitParenTypeLoc(ParenTypeLoc TL) { |
| 4706 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4707 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4708 | } |
| 4709 | void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { |
| 4710 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4711 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx)); |
| 4712 | } |
| 4713 | void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) { |
| 4714 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4715 | } |
| 4716 | void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { |
| 4717 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4718 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx)); |
| 4719 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4720 | } |
| 4721 | void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc( |
| 4722 | DependentTemplateSpecializationTypeLoc TL) { |
| 4723 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4724 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx)); |
| 4725 | TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4726 | TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx)); |
| 4727 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4728 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4729 | for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I) |
| 4730 | TL.setArgLocInfo(I, |
| 4731 | Reader.GetTemplateArgumentLocInfo(F, |
| 4732 | TL.getTypePtr()->getArg(I).getKind(), |
| 4733 | Record, Idx)); |
| 4734 | } |
| 4735 | void TypeLocReader::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) { |
| 4736 | TL.setEllipsisLoc(ReadSourceLocation(Record, Idx)); |
| 4737 | } |
| 4738 | void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { |
| 4739 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4740 | } |
| 4741 | void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { |
| 4742 | TL.setHasBaseTypeAsWritten(Record[Idx++]); |
| 4743 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4744 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4745 | for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i) |
| 4746 | TL.setProtocolLoc(i, ReadSourceLocation(Record, Idx)); |
| 4747 | } |
| 4748 | void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { |
| 4749 | TL.setStarLoc(ReadSourceLocation(Record, Idx)); |
| 4750 | } |
| 4751 | void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) { |
| 4752 | TL.setKWLoc(ReadSourceLocation(Record, Idx)); |
| 4753 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4754 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4755 | } |
| 4756 | |
| 4757 | TypeSourceInfo *ASTReader::GetTypeSourceInfo(ModuleFile &F, |
| 4758 | const RecordData &Record, |
| 4759 | unsigned &Idx) { |
| 4760 | QualType InfoTy = readType(F, Record, Idx); |
| 4761 | if (InfoTy.isNull()) |
| 4762 | return 0; |
| 4763 | |
| 4764 | TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy); |
| 4765 | TypeLocReader TLR(*this, F, Record, Idx); |
| 4766 | for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc()) |
| 4767 | TLR.Visit(TL); |
| 4768 | return TInfo; |
| 4769 | } |
| 4770 | |
| 4771 | QualType ASTReader::GetType(TypeID ID) { |
| 4772 | unsigned FastQuals = ID & Qualifiers::FastMask; |
| 4773 | unsigned Index = ID >> Qualifiers::FastWidth; |
| 4774 | |
| 4775 | if (Index < NUM_PREDEF_TYPE_IDS) { |
| 4776 | QualType T; |
| 4777 | switch ((PredefinedTypeIDs)Index) { |
| 4778 | case PREDEF_TYPE_NULL_ID: return QualType(); |
| 4779 | case PREDEF_TYPE_VOID_ID: T = Context.VoidTy; break; |
| 4780 | case PREDEF_TYPE_BOOL_ID: T = Context.BoolTy; break; |
| 4781 | |
| 4782 | case PREDEF_TYPE_CHAR_U_ID: |
| 4783 | case PREDEF_TYPE_CHAR_S_ID: |
| 4784 | // FIXME: Check that the signedness of CharTy is correct! |
| 4785 | T = Context.CharTy; |
| 4786 | break; |
| 4787 | |
| 4788 | case PREDEF_TYPE_UCHAR_ID: T = Context.UnsignedCharTy; break; |
| 4789 | case PREDEF_TYPE_USHORT_ID: T = Context.UnsignedShortTy; break; |
| 4790 | case PREDEF_TYPE_UINT_ID: T = Context.UnsignedIntTy; break; |
| 4791 | case PREDEF_TYPE_ULONG_ID: T = Context.UnsignedLongTy; break; |
| 4792 | case PREDEF_TYPE_ULONGLONG_ID: T = Context.UnsignedLongLongTy; break; |
| 4793 | case PREDEF_TYPE_UINT128_ID: T = Context.UnsignedInt128Ty; break; |
| 4794 | case PREDEF_TYPE_SCHAR_ID: T = Context.SignedCharTy; break; |
| 4795 | case PREDEF_TYPE_WCHAR_ID: T = Context.WCharTy; break; |
| 4796 | case PREDEF_TYPE_SHORT_ID: T = Context.ShortTy; break; |
| 4797 | case PREDEF_TYPE_INT_ID: T = Context.IntTy; break; |
| 4798 | case PREDEF_TYPE_LONG_ID: T = Context.LongTy; break; |
| 4799 | case PREDEF_TYPE_LONGLONG_ID: T = Context.LongLongTy; break; |
| 4800 | case PREDEF_TYPE_INT128_ID: T = Context.Int128Ty; break; |
| 4801 | case PREDEF_TYPE_HALF_ID: T = Context.HalfTy; break; |
| 4802 | case PREDEF_TYPE_FLOAT_ID: T = Context.FloatTy; break; |
| 4803 | case PREDEF_TYPE_DOUBLE_ID: T = Context.DoubleTy; break; |
| 4804 | case PREDEF_TYPE_LONGDOUBLE_ID: T = Context.LongDoubleTy; break; |
| 4805 | case PREDEF_TYPE_OVERLOAD_ID: T = Context.OverloadTy; break; |
| 4806 | case PREDEF_TYPE_BOUND_MEMBER: T = Context.BoundMemberTy; break; |
| 4807 | case PREDEF_TYPE_PSEUDO_OBJECT: T = Context.PseudoObjectTy; break; |
| 4808 | case PREDEF_TYPE_DEPENDENT_ID: T = Context.DependentTy; break; |
| 4809 | case PREDEF_TYPE_UNKNOWN_ANY: T = Context.UnknownAnyTy; break; |
| 4810 | case PREDEF_TYPE_NULLPTR_ID: T = Context.NullPtrTy; break; |
| 4811 | case PREDEF_TYPE_CHAR16_ID: T = Context.Char16Ty; break; |
| 4812 | case PREDEF_TYPE_CHAR32_ID: T = Context.Char32Ty; break; |
| 4813 | case PREDEF_TYPE_OBJC_ID: T = Context.ObjCBuiltinIdTy; break; |
| 4814 | case PREDEF_TYPE_OBJC_CLASS: T = Context.ObjCBuiltinClassTy; break; |
| 4815 | case PREDEF_TYPE_OBJC_SEL: T = Context.ObjCBuiltinSelTy; break; |
Guy Benyei | b13621d | 2012-12-18 14:38:23 +0000 | [diff] [blame] | 4816 | case PREDEF_TYPE_IMAGE1D_ID: T = Context.OCLImage1dTy; break; |
| 4817 | case PREDEF_TYPE_IMAGE1D_ARR_ID: T = Context.OCLImage1dArrayTy; break; |
| 4818 | case PREDEF_TYPE_IMAGE1D_BUFF_ID: T = Context.OCLImage1dBufferTy; break; |
| 4819 | case PREDEF_TYPE_IMAGE2D_ID: T = Context.OCLImage2dTy; break; |
| 4820 | case PREDEF_TYPE_IMAGE2D_ARR_ID: T = Context.OCLImage2dArrayTy; break; |
| 4821 | case PREDEF_TYPE_IMAGE3D_ID: T = Context.OCLImage3dTy; break; |
Guy Benyei | e6b9d80 | 2013-01-20 12:31:11 +0000 | [diff] [blame] | 4822 | case PREDEF_TYPE_EVENT_ID: T = Context.OCLEventTy; break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4823 | case PREDEF_TYPE_AUTO_DEDUCT: T = Context.getAutoDeductType(); break; |
| 4824 | |
| 4825 | case PREDEF_TYPE_AUTO_RREF_DEDUCT: |
| 4826 | T = Context.getAutoRRefDeductType(); |
| 4827 | break; |
| 4828 | |
| 4829 | case PREDEF_TYPE_ARC_UNBRIDGED_CAST: |
| 4830 | T = Context.ARCUnbridgedCastTy; |
| 4831 | break; |
| 4832 | |
| 4833 | case PREDEF_TYPE_VA_LIST_TAG: |
| 4834 | T = Context.getVaListTagType(); |
| 4835 | break; |
| 4836 | |
| 4837 | case PREDEF_TYPE_BUILTIN_FN: |
| 4838 | T = Context.BuiltinFnTy; |
| 4839 | break; |
| 4840 | } |
| 4841 | |
| 4842 | assert(!T.isNull() && "Unknown predefined type"); |
| 4843 | return T.withFastQualifiers(FastQuals); |
| 4844 | } |
| 4845 | |
| 4846 | Index -= NUM_PREDEF_TYPE_IDS; |
| 4847 | assert(Index < TypesLoaded.size() && "Type index out-of-range"); |
| 4848 | if (TypesLoaded[Index].isNull()) { |
| 4849 | TypesLoaded[Index] = readTypeRecord(Index); |
| 4850 | if (TypesLoaded[Index].isNull()) |
| 4851 | return QualType(); |
| 4852 | |
| 4853 | TypesLoaded[Index]->setFromAST(); |
| 4854 | if (DeserializationListener) |
| 4855 | DeserializationListener->TypeRead(TypeIdx::fromTypeID(ID), |
| 4856 | TypesLoaded[Index]); |
| 4857 | } |
| 4858 | |
| 4859 | return TypesLoaded[Index].withFastQualifiers(FastQuals); |
| 4860 | } |
| 4861 | |
| 4862 | QualType ASTReader::getLocalType(ModuleFile &F, unsigned LocalID) { |
| 4863 | return GetType(getGlobalTypeID(F, LocalID)); |
| 4864 | } |
| 4865 | |
| 4866 | serialization::TypeID |
| 4867 | ASTReader::getGlobalTypeID(ModuleFile &F, unsigned LocalID) const { |
| 4868 | unsigned FastQuals = LocalID & Qualifiers::FastMask; |
| 4869 | unsigned LocalIndex = LocalID >> Qualifiers::FastWidth; |
| 4870 | |
| 4871 | if (LocalIndex < NUM_PREDEF_TYPE_IDS) |
| 4872 | return LocalID; |
| 4873 | |
| 4874 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 4875 | = F.TypeRemap.find(LocalIndex - NUM_PREDEF_TYPE_IDS); |
| 4876 | assert(I != F.TypeRemap.end() && "Invalid index into type index remap"); |
| 4877 | |
| 4878 | unsigned GlobalIndex = LocalIndex + I->second; |
| 4879 | return (GlobalIndex << Qualifiers::FastWidth) | FastQuals; |
| 4880 | } |
| 4881 | |
| 4882 | TemplateArgumentLocInfo |
| 4883 | ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F, |
| 4884 | TemplateArgument::ArgKind Kind, |
| 4885 | const RecordData &Record, |
| 4886 | unsigned &Index) { |
| 4887 | switch (Kind) { |
| 4888 | case TemplateArgument::Expression: |
| 4889 | return ReadExpr(F); |
| 4890 | case TemplateArgument::Type: |
| 4891 | return GetTypeSourceInfo(F, Record, Index); |
| 4892 | case TemplateArgument::Template: { |
| 4893 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, |
| 4894 | Index); |
| 4895 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index); |
| 4896 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc, |
| 4897 | SourceLocation()); |
| 4898 | } |
| 4899 | case TemplateArgument::TemplateExpansion: { |
| 4900 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, |
| 4901 | Index); |
| 4902 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index); |
| 4903 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Index); |
| 4904 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc, |
| 4905 | EllipsisLoc); |
| 4906 | } |
| 4907 | case TemplateArgument::Null: |
| 4908 | case TemplateArgument::Integral: |
| 4909 | case TemplateArgument::Declaration: |
| 4910 | case TemplateArgument::NullPtr: |
| 4911 | case TemplateArgument::Pack: |
| 4912 | // FIXME: Is this right? |
| 4913 | return TemplateArgumentLocInfo(); |
| 4914 | } |
| 4915 | llvm_unreachable("unexpected template argument loc"); |
| 4916 | } |
| 4917 | |
| 4918 | TemplateArgumentLoc |
| 4919 | ASTReader::ReadTemplateArgumentLoc(ModuleFile &F, |
| 4920 | const RecordData &Record, unsigned &Index) { |
| 4921 | TemplateArgument Arg = ReadTemplateArgument(F, Record, Index); |
| 4922 | |
| 4923 | if (Arg.getKind() == TemplateArgument::Expression) { |
| 4924 | if (Record[Index++]) // bool InfoHasSameExpr. |
| 4925 | return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr())); |
| 4926 | } |
| 4927 | return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(F, Arg.getKind(), |
| 4928 | Record, Index)); |
| 4929 | } |
| 4930 | |
| 4931 | Decl *ASTReader::GetExternalDecl(uint32_t ID) { |
| 4932 | return GetDecl(ID); |
| 4933 | } |
| 4934 | |
| 4935 | uint64_t ASTReader::readCXXBaseSpecifiers(ModuleFile &M, const RecordData &Record, |
| 4936 | unsigned &Idx){ |
| 4937 | if (Idx >= Record.size()) |
| 4938 | return 0; |
| 4939 | |
| 4940 | unsigned LocalID = Record[Idx++]; |
| 4941 | return getGlobalBitOffset(M, M.CXXBaseSpecifiersOffsets[LocalID - 1]); |
| 4942 | } |
| 4943 | |
| 4944 | CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) { |
| 4945 | RecordLocation Loc = getLocalBitOffset(Offset); |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 4946 | BitstreamCursor &Cursor = Loc.F->DeclsCursor; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4947 | SavedStreamPosition SavedPosition(Cursor); |
| 4948 | Cursor.JumpToBit(Loc.Offset); |
| 4949 | ReadingKindTracker ReadingKind(Read_Decl, *this); |
| 4950 | RecordData Record; |
| 4951 | unsigned Code = Cursor.ReadCode(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 4952 | unsigned RecCode = Cursor.readRecord(Code, Record); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4953 | if (RecCode != DECL_CXX_BASE_SPECIFIERS) { |
| 4954 | Error("Malformed AST file: missing C++ base specifiers"); |
| 4955 | return 0; |
| 4956 | } |
| 4957 | |
| 4958 | unsigned Idx = 0; |
| 4959 | unsigned NumBases = Record[Idx++]; |
| 4960 | void *Mem = Context.Allocate(sizeof(CXXBaseSpecifier) * NumBases); |
| 4961 | CXXBaseSpecifier *Bases = new (Mem) CXXBaseSpecifier [NumBases]; |
| 4962 | for (unsigned I = 0; I != NumBases; ++I) |
| 4963 | Bases[I] = ReadCXXBaseSpecifier(*Loc.F, Record, Idx); |
| 4964 | return Bases; |
| 4965 | } |
| 4966 | |
| 4967 | serialization::DeclID |
| 4968 | ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const { |
| 4969 | if (LocalID < NUM_PREDEF_DECL_IDS) |
| 4970 | return LocalID; |
| 4971 | |
| 4972 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 4973 | = F.DeclRemap.find(LocalID - NUM_PREDEF_DECL_IDS); |
| 4974 | assert(I != F.DeclRemap.end() && "Invalid index into decl index remap"); |
| 4975 | |
| 4976 | return LocalID + I->second; |
| 4977 | } |
| 4978 | |
| 4979 | bool ASTReader::isDeclIDFromModule(serialization::GlobalDeclID ID, |
| 4980 | ModuleFile &M) const { |
| 4981 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(ID); |
| 4982 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| 4983 | return &M == I->second; |
| 4984 | } |
| 4985 | |
Douglas Gregor | 5a04f9f | 2013-01-21 15:25:38 +0000 | [diff] [blame] | 4986 | ModuleFile *ASTReader::getOwningModuleFile(const Decl *D) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4987 | if (!D->isFromASTFile()) |
| 4988 | return 0; |
| 4989 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(D->getGlobalID()); |
| 4990 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| 4991 | return I->second; |
| 4992 | } |
| 4993 | |
| 4994 | SourceLocation ASTReader::getSourceLocationForDeclID(GlobalDeclID ID) { |
| 4995 | if (ID < NUM_PREDEF_DECL_IDS) |
| 4996 | return SourceLocation(); |
| 4997 | |
| 4998 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; |
| 4999 | |
| 5000 | if (Index > DeclsLoaded.size()) { |
| 5001 | Error("declaration ID out-of-range for AST file"); |
| 5002 | return SourceLocation(); |
| 5003 | } |
| 5004 | |
| 5005 | if (Decl *D = DeclsLoaded[Index]) |
| 5006 | return D->getLocation(); |
| 5007 | |
| 5008 | unsigned RawLocation = 0; |
| 5009 | RecordLocation Rec = DeclCursorForID(ID, RawLocation); |
| 5010 | return ReadSourceLocation(*Rec.F, RawLocation); |
| 5011 | } |
| 5012 | |
| 5013 | Decl *ASTReader::GetDecl(DeclID ID) { |
| 5014 | if (ID < NUM_PREDEF_DECL_IDS) { |
| 5015 | switch ((PredefinedDeclIDs)ID) { |
| 5016 | case PREDEF_DECL_NULL_ID: |
| 5017 | return 0; |
| 5018 | |
| 5019 | case PREDEF_DECL_TRANSLATION_UNIT_ID: |
| 5020 | return Context.getTranslationUnitDecl(); |
| 5021 | |
| 5022 | case PREDEF_DECL_OBJC_ID_ID: |
| 5023 | return Context.getObjCIdDecl(); |
| 5024 | |
| 5025 | case PREDEF_DECL_OBJC_SEL_ID: |
| 5026 | return Context.getObjCSelDecl(); |
| 5027 | |
| 5028 | case PREDEF_DECL_OBJC_CLASS_ID: |
| 5029 | return Context.getObjCClassDecl(); |
| 5030 | |
| 5031 | case PREDEF_DECL_OBJC_PROTOCOL_ID: |
| 5032 | return Context.getObjCProtocolDecl(); |
| 5033 | |
| 5034 | case PREDEF_DECL_INT_128_ID: |
| 5035 | return Context.getInt128Decl(); |
| 5036 | |
| 5037 | case PREDEF_DECL_UNSIGNED_INT_128_ID: |
| 5038 | return Context.getUInt128Decl(); |
| 5039 | |
| 5040 | case PREDEF_DECL_OBJC_INSTANCETYPE_ID: |
| 5041 | return Context.getObjCInstanceTypeDecl(); |
| 5042 | |
| 5043 | case PREDEF_DECL_BUILTIN_VA_LIST_ID: |
| 5044 | return Context.getBuiltinVaListDecl(); |
| 5045 | } |
| 5046 | } |
| 5047 | |
| 5048 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; |
| 5049 | |
| 5050 | if (Index >= DeclsLoaded.size()) { |
| 5051 | assert(0 && "declaration ID out-of-range for AST file"); |
| 5052 | Error("declaration ID out-of-range for AST file"); |
| 5053 | return 0; |
| 5054 | } |
| 5055 | |
| 5056 | if (!DeclsLoaded[Index]) { |
| 5057 | ReadDeclRecord(ID); |
| 5058 | if (DeserializationListener) |
| 5059 | DeserializationListener->DeclRead(ID, DeclsLoaded[Index]); |
| 5060 | } |
| 5061 | |
| 5062 | return DeclsLoaded[Index]; |
| 5063 | } |
| 5064 | |
| 5065 | DeclID ASTReader::mapGlobalIDToModuleFileGlobalID(ModuleFile &M, |
| 5066 | DeclID GlobalID) { |
| 5067 | if (GlobalID < NUM_PREDEF_DECL_IDS) |
| 5068 | return GlobalID; |
| 5069 | |
| 5070 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(GlobalID); |
| 5071 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| 5072 | ModuleFile *Owner = I->second; |
| 5073 | |
| 5074 | llvm::DenseMap<ModuleFile *, serialization::DeclID>::iterator Pos |
| 5075 | = M.GlobalToLocalDeclIDs.find(Owner); |
| 5076 | if (Pos == M.GlobalToLocalDeclIDs.end()) |
| 5077 | return 0; |
| 5078 | |
| 5079 | return GlobalID - Owner->BaseDeclID + Pos->second; |
| 5080 | } |
| 5081 | |
| 5082 | serialization::DeclID ASTReader::ReadDeclID(ModuleFile &F, |
| 5083 | const RecordData &Record, |
| 5084 | unsigned &Idx) { |
| 5085 | if (Idx >= Record.size()) { |
| 5086 | Error("Corrupted AST file"); |
| 5087 | return 0; |
| 5088 | } |
| 5089 | |
| 5090 | return getGlobalDeclID(F, Record[Idx++]); |
| 5091 | } |
| 5092 | |
| 5093 | /// \brief Resolve the offset of a statement into a statement. |
| 5094 | /// |
| 5095 | /// This operation will read a new statement from the external |
| 5096 | /// source each time it is called, and is meant to be used via a |
| 5097 | /// LazyOffsetPtr (which is used by Decls for the body of functions, etc). |
| 5098 | Stmt *ASTReader::GetExternalDeclStmt(uint64_t Offset) { |
| 5099 | // Switch case IDs are per Decl. |
| 5100 | ClearSwitchCaseIDs(); |
| 5101 | |
| 5102 | // Offset here is a global offset across the entire chain. |
| 5103 | RecordLocation Loc = getLocalBitOffset(Offset); |
| 5104 | Loc.F->DeclsCursor.JumpToBit(Loc.Offset); |
| 5105 | return ReadStmtFromStream(*Loc.F); |
| 5106 | } |
| 5107 | |
| 5108 | namespace { |
| 5109 | class FindExternalLexicalDeclsVisitor { |
| 5110 | ASTReader &Reader; |
| 5111 | const DeclContext *DC; |
| 5112 | bool (*isKindWeWant)(Decl::Kind); |
| 5113 | |
| 5114 | SmallVectorImpl<Decl*> &Decls; |
| 5115 | bool PredefsVisited[NUM_PREDEF_DECL_IDS]; |
| 5116 | |
| 5117 | public: |
| 5118 | FindExternalLexicalDeclsVisitor(ASTReader &Reader, const DeclContext *DC, |
| 5119 | bool (*isKindWeWant)(Decl::Kind), |
| 5120 | SmallVectorImpl<Decl*> &Decls) |
| 5121 | : Reader(Reader), DC(DC), isKindWeWant(isKindWeWant), Decls(Decls) |
| 5122 | { |
| 5123 | for (unsigned I = 0; I != NUM_PREDEF_DECL_IDS; ++I) |
| 5124 | PredefsVisited[I] = false; |
| 5125 | } |
| 5126 | |
| 5127 | static bool visit(ModuleFile &M, bool Preorder, void *UserData) { |
| 5128 | if (Preorder) |
| 5129 | return false; |
| 5130 | |
| 5131 | FindExternalLexicalDeclsVisitor *This |
| 5132 | = static_cast<FindExternalLexicalDeclsVisitor *>(UserData); |
| 5133 | |
| 5134 | ModuleFile::DeclContextInfosMap::iterator Info |
| 5135 | = M.DeclContextInfos.find(This->DC); |
| 5136 | if (Info == M.DeclContextInfos.end() || !Info->second.LexicalDecls) |
| 5137 | return false; |
| 5138 | |
| 5139 | // Load all of the declaration IDs |
| 5140 | for (const KindDeclIDPair *ID = Info->second.LexicalDecls, |
| 5141 | *IDE = ID + Info->second.NumLexicalDecls; |
| 5142 | ID != IDE; ++ID) { |
| 5143 | if (This->isKindWeWant && !This->isKindWeWant((Decl::Kind)ID->first)) |
| 5144 | continue; |
| 5145 | |
| 5146 | // Don't add predefined declarations to the lexical context more |
| 5147 | // than once. |
| 5148 | if (ID->second < NUM_PREDEF_DECL_IDS) { |
| 5149 | if (This->PredefsVisited[ID->second]) |
| 5150 | continue; |
| 5151 | |
| 5152 | This->PredefsVisited[ID->second] = true; |
| 5153 | } |
| 5154 | |
| 5155 | if (Decl *D = This->Reader.GetLocalDecl(M, ID->second)) { |
| 5156 | if (!This->DC->isDeclInLexicalTraversal(D)) |
| 5157 | This->Decls.push_back(D); |
| 5158 | } |
| 5159 | } |
| 5160 | |
| 5161 | return false; |
| 5162 | } |
| 5163 | }; |
| 5164 | } |
| 5165 | |
| 5166 | ExternalLoadResult ASTReader::FindExternalLexicalDecls(const DeclContext *DC, |
| 5167 | bool (*isKindWeWant)(Decl::Kind), |
| 5168 | SmallVectorImpl<Decl*> &Decls) { |
| 5169 | // There might be lexical decls in multiple modules, for the TU at |
| 5170 | // least. Walk all of the modules in the order they were loaded. |
| 5171 | FindExternalLexicalDeclsVisitor Visitor(*this, DC, isKindWeWant, Decls); |
| 5172 | ModuleMgr.visitDepthFirst(&FindExternalLexicalDeclsVisitor::visit, &Visitor); |
| 5173 | ++NumLexicalDeclContextsRead; |
| 5174 | return ELR_Success; |
| 5175 | } |
| 5176 | |
| 5177 | namespace { |
| 5178 | |
| 5179 | class DeclIDComp { |
| 5180 | ASTReader &Reader; |
| 5181 | ModuleFile &Mod; |
| 5182 | |
| 5183 | public: |
| 5184 | DeclIDComp(ASTReader &Reader, ModuleFile &M) : Reader(Reader), Mod(M) {} |
| 5185 | |
| 5186 | bool operator()(LocalDeclID L, LocalDeclID R) const { |
| 5187 | SourceLocation LHS = getLocation(L); |
| 5188 | SourceLocation RHS = getLocation(R); |
| 5189 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 5190 | } |
| 5191 | |
| 5192 | bool operator()(SourceLocation LHS, LocalDeclID R) const { |
| 5193 | SourceLocation RHS = getLocation(R); |
| 5194 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 5195 | } |
| 5196 | |
| 5197 | bool operator()(LocalDeclID L, SourceLocation RHS) const { |
| 5198 | SourceLocation LHS = getLocation(L); |
| 5199 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 5200 | } |
| 5201 | |
| 5202 | SourceLocation getLocation(LocalDeclID ID) const { |
| 5203 | return Reader.getSourceManager().getFileLoc( |
| 5204 | Reader.getSourceLocationForDeclID(Reader.getGlobalDeclID(Mod, ID))); |
| 5205 | } |
| 5206 | }; |
| 5207 | |
| 5208 | } |
| 5209 | |
| 5210 | void ASTReader::FindFileRegionDecls(FileID File, |
| 5211 | unsigned Offset, unsigned Length, |
| 5212 | SmallVectorImpl<Decl *> &Decls) { |
| 5213 | SourceManager &SM = getSourceManager(); |
| 5214 | |
| 5215 | llvm::DenseMap<FileID, FileDeclsInfo>::iterator I = FileDeclIDs.find(File); |
| 5216 | if (I == FileDeclIDs.end()) |
| 5217 | return; |
| 5218 | |
| 5219 | FileDeclsInfo &DInfo = I->second; |
| 5220 | if (DInfo.Decls.empty()) |
| 5221 | return; |
| 5222 | |
| 5223 | SourceLocation |
| 5224 | BeginLoc = SM.getLocForStartOfFile(File).getLocWithOffset(Offset); |
| 5225 | SourceLocation EndLoc = BeginLoc.getLocWithOffset(Length); |
| 5226 | |
| 5227 | DeclIDComp DIDComp(*this, *DInfo.Mod); |
| 5228 | ArrayRef<serialization::LocalDeclID>::iterator |
| 5229 | BeginIt = std::lower_bound(DInfo.Decls.begin(), DInfo.Decls.end(), |
| 5230 | BeginLoc, DIDComp); |
| 5231 | if (BeginIt != DInfo.Decls.begin()) |
| 5232 | --BeginIt; |
| 5233 | |
| 5234 | // If we are pointing at a top-level decl inside an objc container, we need |
| 5235 | // to backtrack until we find it otherwise we will fail to report that the |
| 5236 | // region overlaps with an objc container. |
| 5237 | while (BeginIt != DInfo.Decls.begin() && |
| 5238 | GetDecl(getGlobalDeclID(*DInfo.Mod, *BeginIt)) |
| 5239 | ->isTopLevelDeclInObjCContainer()) |
| 5240 | --BeginIt; |
| 5241 | |
| 5242 | ArrayRef<serialization::LocalDeclID>::iterator |
| 5243 | EndIt = std::upper_bound(DInfo.Decls.begin(), DInfo.Decls.end(), |
| 5244 | EndLoc, DIDComp); |
| 5245 | if (EndIt != DInfo.Decls.end()) |
| 5246 | ++EndIt; |
| 5247 | |
| 5248 | for (ArrayRef<serialization::LocalDeclID>::iterator |
| 5249 | DIt = BeginIt; DIt != EndIt; ++DIt) |
| 5250 | Decls.push_back(GetDecl(getGlobalDeclID(*DInfo.Mod, *DIt))); |
| 5251 | } |
| 5252 | |
| 5253 | namespace { |
| 5254 | /// \brief ModuleFile visitor used to perform name lookup into a |
| 5255 | /// declaration context. |
| 5256 | class DeclContextNameLookupVisitor { |
| 5257 | ASTReader &Reader; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5258 | SmallVectorImpl<const DeclContext *> &Contexts; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5259 | DeclarationName Name; |
| 5260 | SmallVectorImpl<NamedDecl *> &Decls; |
| 5261 | |
| 5262 | public: |
| 5263 | DeclContextNameLookupVisitor(ASTReader &Reader, |
| 5264 | SmallVectorImpl<const DeclContext *> &Contexts, |
| 5265 | DeclarationName Name, |
| 5266 | SmallVectorImpl<NamedDecl *> &Decls) |
| 5267 | : Reader(Reader), Contexts(Contexts), Name(Name), Decls(Decls) { } |
| 5268 | |
| 5269 | static bool visit(ModuleFile &M, void *UserData) { |
| 5270 | DeclContextNameLookupVisitor *This |
| 5271 | = static_cast<DeclContextNameLookupVisitor *>(UserData); |
| 5272 | |
| 5273 | // Check whether we have any visible declaration information for |
| 5274 | // this context in this module. |
| 5275 | ModuleFile::DeclContextInfosMap::iterator Info; |
| 5276 | bool FoundInfo = false; |
| 5277 | for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) { |
| 5278 | Info = M.DeclContextInfos.find(This->Contexts[I]); |
| 5279 | if (Info != M.DeclContextInfos.end() && |
| 5280 | Info->second.NameLookupTableData) { |
| 5281 | FoundInfo = true; |
| 5282 | break; |
| 5283 | } |
| 5284 | } |
| 5285 | |
| 5286 | if (!FoundInfo) |
| 5287 | return false; |
| 5288 | |
| 5289 | // Look for this name within this module. |
| 5290 | ASTDeclContextNameLookupTable *LookupTable = |
| 5291 | Info->second.NameLookupTableData; |
| 5292 | ASTDeclContextNameLookupTable::iterator Pos |
| 5293 | = LookupTable->find(This->Name); |
| 5294 | if (Pos == LookupTable->end()) |
| 5295 | return false; |
| 5296 | |
| 5297 | bool FoundAnything = false; |
| 5298 | ASTDeclContextNameLookupTrait::data_type Data = *Pos; |
| 5299 | for (; Data.first != Data.second; ++Data.first) { |
| 5300 | NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, *Data.first); |
| 5301 | if (!ND) |
| 5302 | continue; |
| 5303 | |
| 5304 | if (ND->getDeclName() != This->Name) { |
| 5305 | // A name might be null because the decl's redeclarable part is |
| 5306 | // currently read before reading its name. The lookup is triggered by |
| 5307 | // building that decl (likely indirectly), and so it is later in the |
| 5308 | // sense of "already existing" and can be ignored here. |
| 5309 | continue; |
| 5310 | } |
| 5311 | |
| 5312 | // Record this declaration. |
| 5313 | FoundAnything = true; |
| 5314 | This->Decls.push_back(ND); |
| 5315 | } |
| 5316 | |
| 5317 | return FoundAnything; |
| 5318 | } |
| 5319 | }; |
| 5320 | } |
| 5321 | |
Douglas Gregor | 5a04f9f | 2013-01-21 15:25:38 +0000 | [diff] [blame] | 5322 | /// \brief Retrieve the "definitive" module file for the definition of the |
| 5323 | /// given declaration context, if there is one. |
| 5324 | /// |
| 5325 | /// The "definitive" module file is the only place where we need to look to |
| 5326 | /// find information about the declarations within the given declaration |
| 5327 | /// context. For example, C++ and Objective-C classes, C structs/unions, and |
| 5328 | /// Objective-C protocols, categories, and extensions are all defined in a |
| 5329 | /// single place in the source code, so they have definitive module files |
| 5330 | /// associated with them. C++ namespaces, on the other hand, can have |
| 5331 | /// definitions in multiple different module files. |
| 5332 | /// |
| 5333 | /// Note: this needs to be kept in sync with ASTWriter::AddedVisibleDecl's |
| 5334 | /// NDEBUG checking. |
| 5335 | static ModuleFile *getDefinitiveModuleFileFor(const DeclContext *DC, |
| 5336 | ASTReader &Reader) { |
Douglas Gregor | e0d2066 | 2013-01-22 17:08:30 +0000 | [diff] [blame] | 5337 | if (const DeclContext *DefDC = getDefinitiveDeclContext(DC)) |
| 5338 | return Reader.getOwningModuleFile(cast<Decl>(DefDC)); |
Douglas Gregor | 5a04f9f | 2013-01-21 15:25:38 +0000 | [diff] [blame] | 5339 | |
| 5340 | return 0; |
| 5341 | } |
| 5342 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5343 | DeclContext::lookup_result |
| 5344 | ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC, |
| 5345 | DeclarationName Name) { |
| 5346 | assert(DC->hasExternalVisibleStorage() && |
| 5347 | "DeclContext has no visible decls in storage"); |
| 5348 | if (!Name) |
| 5349 | return DeclContext::lookup_result(DeclContext::lookup_iterator(0), |
| 5350 | DeclContext::lookup_iterator(0)); |
| 5351 | |
| 5352 | SmallVector<NamedDecl *, 64> Decls; |
| 5353 | |
| 5354 | // Compute the declaration contexts we need to look into. Multiple such |
| 5355 | // declaration contexts occur when two declaration contexts from disjoint |
| 5356 | // modules get merged, e.g., when two namespaces with the same name are |
| 5357 | // independently defined in separate modules. |
| 5358 | SmallVector<const DeclContext *, 2> Contexts; |
| 5359 | Contexts.push_back(DC); |
| 5360 | |
| 5361 | if (DC->isNamespace()) { |
| 5362 | MergedDeclsMap::iterator Merged |
| 5363 | = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC))); |
| 5364 | if (Merged != MergedDecls.end()) { |
| 5365 | for (unsigned I = 0, N = Merged->second.size(); I != N; ++I) |
| 5366 | Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I]))); |
| 5367 | } |
| 5368 | } |
| 5369 | |
| 5370 | DeclContextNameLookupVisitor Visitor(*this, Contexts, Name, Decls); |
Douglas Gregor | 5a04f9f | 2013-01-21 15:25:38 +0000 | [diff] [blame] | 5371 | |
| 5372 | // If we can definitively determine which module file to look into, |
| 5373 | // only look there. Otherwise, look in all module files. |
| 5374 | ModuleFile *Definitive; |
| 5375 | if (Contexts.size() == 1 && |
| 5376 | (Definitive = getDefinitiveModuleFileFor(DC, *this))) { |
| 5377 | DeclContextNameLookupVisitor::visit(*Definitive, &Visitor); |
| 5378 | } else { |
| 5379 | ModuleMgr.visit(&DeclContextNameLookupVisitor::visit, &Visitor); |
| 5380 | } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5381 | ++NumVisibleDeclContextsRead; |
| 5382 | SetExternalVisibleDeclsForName(DC, Name, Decls); |
| 5383 | return const_cast<DeclContext*>(DC)->lookup(Name); |
| 5384 | } |
| 5385 | |
| 5386 | namespace { |
| 5387 | /// \brief ModuleFile visitor used to retrieve all visible names in a |
| 5388 | /// declaration context. |
| 5389 | class DeclContextAllNamesVisitor { |
| 5390 | ASTReader &Reader; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5391 | SmallVectorImpl<const DeclContext *> &Contexts; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5392 | llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > &Decls; |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5393 | bool VisitAll; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5394 | |
| 5395 | public: |
| 5396 | DeclContextAllNamesVisitor(ASTReader &Reader, |
| 5397 | SmallVectorImpl<const DeclContext *> &Contexts, |
| 5398 | llvm::DenseMap<DeclarationName, |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5399 | SmallVector<NamedDecl *, 8> > &Decls, |
| 5400 | bool VisitAll) |
| 5401 | : Reader(Reader), Contexts(Contexts), Decls(Decls), VisitAll(VisitAll) { } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5402 | |
| 5403 | static bool visit(ModuleFile &M, void *UserData) { |
| 5404 | DeclContextAllNamesVisitor *This |
| 5405 | = static_cast<DeclContextAllNamesVisitor *>(UserData); |
| 5406 | |
| 5407 | // Check whether we have any visible declaration information for |
| 5408 | // this context in this module. |
| 5409 | ModuleFile::DeclContextInfosMap::iterator Info; |
| 5410 | bool FoundInfo = false; |
| 5411 | for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) { |
| 5412 | Info = M.DeclContextInfos.find(This->Contexts[I]); |
| 5413 | if (Info != M.DeclContextInfos.end() && |
| 5414 | Info->second.NameLookupTableData) { |
| 5415 | FoundInfo = true; |
| 5416 | break; |
| 5417 | } |
| 5418 | } |
| 5419 | |
| 5420 | if (!FoundInfo) |
| 5421 | return false; |
| 5422 | |
| 5423 | ASTDeclContextNameLookupTable *LookupTable = |
| 5424 | Info->second.NameLookupTableData; |
| 5425 | bool FoundAnything = false; |
| 5426 | for (ASTDeclContextNameLookupTable::data_iterator |
Douglas Gregor | a6b00fc | 2013-01-23 22:38:11 +0000 | [diff] [blame] | 5427 | I = LookupTable->data_begin(), E = LookupTable->data_end(); |
| 5428 | I != E; |
| 5429 | ++I) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5430 | ASTDeclContextNameLookupTrait::data_type Data = *I; |
| 5431 | for (; Data.first != Data.second; ++Data.first) { |
| 5432 | NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, |
| 5433 | *Data.first); |
| 5434 | if (!ND) |
| 5435 | continue; |
| 5436 | |
| 5437 | // Record this declaration. |
| 5438 | FoundAnything = true; |
| 5439 | This->Decls[ND->getDeclName()].push_back(ND); |
| 5440 | } |
| 5441 | } |
| 5442 | |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5443 | return FoundAnything && !This->VisitAll; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5444 | } |
| 5445 | }; |
| 5446 | } |
| 5447 | |
| 5448 | void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) { |
| 5449 | if (!DC->hasExternalVisibleStorage()) |
| 5450 | return; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5451 | llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > Decls; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5452 | |
| 5453 | // Compute the declaration contexts we need to look into. Multiple such |
| 5454 | // declaration contexts occur when two declaration contexts from disjoint |
| 5455 | // modules get merged, e.g., when two namespaces with the same name are |
| 5456 | // independently defined in separate modules. |
| 5457 | SmallVector<const DeclContext *, 2> Contexts; |
| 5458 | Contexts.push_back(DC); |
| 5459 | |
| 5460 | if (DC->isNamespace()) { |
| 5461 | MergedDeclsMap::iterator Merged |
| 5462 | = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC))); |
| 5463 | if (Merged != MergedDecls.end()) { |
| 5464 | for (unsigned I = 0, N = Merged->second.size(); I != N; ++I) |
| 5465 | Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I]))); |
| 5466 | } |
| 5467 | } |
| 5468 | |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5469 | DeclContextAllNamesVisitor Visitor(*this, Contexts, Decls, |
| 5470 | /*VisitAll=*/DC->isFileContext()); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5471 | ModuleMgr.visit(&DeclContextAllNamesVisitor::visit, &Visitor); |
| 5472 | ++NumVisibleDeclContextsRead; |
| 5473 | |
| 5474 | for (llvm::DenseMap<DeclarationName, |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5475 | SmallVector<NamedDecl *, 8> >::iterator |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5476 | I = Decls.begin(), E = Decls.end(); I != E; ++I) { |
| 5477 | SetExternalVisibleDeclsForName(DC, I->first, I->second); |
| 5478 | } |
| 5479 | const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false); |
| 5480 | } |
| 5481 | |
| 5482 | /// \brief Under non-PCH compilation the consumer receives the objc methods |
| 5483 | /// before receiving the implementation, and codegen depends on this. |
| 5484 | /// We simulate this by deserializing and passing to consumer the methods of the |
| 5485 | /// implementation before passing the deserialized implementation decl. |
| 5486 | static void PassObjCImplDeclToConsumer(ObjCImplDecl *ImplD, |
| 5487 | ASTConsumer *Consumer) { |
| 5488 | assert(ImplD && Consumer); |
| 5489 | |
| 5490 | for (ObjCImplDecl::method_iterator |
| 5491 | I = ImplD->meth_begin(), E = ImplD->meth_end(); I != E; ++I) |
| 5492 | Consumer->HandleInterestingDecl(DeclGroupRef(*I)); |
| 5493 | |
| 5494 | Consumer->HandleInterestingDecl(DeclGroupRef(ImplD)); |
| 5495 | } |
| 5496 | |
| 5497 | void ASTReader::PassInterestingDeclsToConsumer() { |
| 5498 | assert(Consumer); |
| 5499 | while (!InterestingDecls.empty()) { |
| 5500 | Decl *D = InterestingDecls.front(); |
| 5501 | InterestingDecls.pop_front(); |
| 5502 | |
| 5503 | PassInterestingDeclToConsumer(D); |
| 5504 | } |
| 5505 | } |
| 5506 | |
| 5507 | void ASTReader::PassInterestingDeclToConsumer(Decl *D) { |
| 5508 | if (ObjCImplDecl *ImplD = dyn_cast<ObjCImplDecl>(D)) |
| 5509 | PassObjCImplDeclToConsumer(ImplD, Consumer); |
| 5510 | else |
| 5511 | Consumer->HandleInterestingDecl(DeclGroupRef(D)); |
| 5512 | } |
| 5513 | |
| 5514 | void ASTReader::StartTranslationUnit(ASTConsumer *Consumer) { |
| 5515 | this->Consumer = Consumer; |
| 5516 | |
| 5517 | if (!Consumer) |
| 5518 | return; |
| 5519 | |
| 5520 | for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) { |
| 5521 | // Force deserialization of this decl, which will cause it to be queued for |
| 5522 | // passing to the consumer. |
| 5523 | GetDecl(ExternalDefinitions[I]); |
| 5524 | } |
| 5525 | ExternalDefinitions.clear(); |
| 5526 | |
| 5527 | PassInterestingDeclsToConsumer(); |
| 5528 | } |
| 5529 | |
| 5530 | void ASTReader::PrintStats() { |
| 5531 | std::fprintf(stderr, "*** AST File Statistics:\n"); |
| 5532 | |
| 5533 | unsigned NumTypesLoaded |
| 5534 | = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(), |
| 5535 | QualType()); |
| 5536 | unsigned NumDeclsLoaded |
| 5537 | = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(), |
| 5538 | (Decl *)0); |
| 5539 | unsigned NumIdentifiersLoaded |
| 5540 | = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(), |
| 5541 | IdentifiersLoaded.end(), |
| 5542 | (IdentifierInfo *)0); |
| 5543 | unsigned NumMacrosLoaded |
| 5544 | = MacrosLoaded.size() - std::count(MacrosLoaded.begin(), |
| 5545 | MacrosLoaded.end(), |
| 5546 | (MacroInfo *)0); |
| 5547 | unsigned NumSelectorsLoaded |
| 5548 | = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(), |
| 5549 | SelectorsLoaded.end(), |
| 5550 | Selector()); |
| 5551 | |
| 5552 | if (unsigned TotalNumSLocEntries = getTotalNumSLocs()) |
| 5553 | std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n", |
| 5554 | NumSLocEntriesRead, TotalNumSLocEntries, |
| 5555 | ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100)); |
| 5556 | if (!TypesLoaded.empty()) |
| 5557 | std::fprintf(stderr, " %u/%u types read (%f%%)\n", |
| 5558 | NumTypesLoaded, (unsigned)TypesLoaded.size(), |
| 5559 | ((float)NumTypesLoaded/TypesLoaded.size() * 100)); |
| 5560 | if (!DeclsLoaded.empty()) |
| 5561 | std::fprintf(stderr, " %u/%u declarations read (%f%%)\n", |
| 5562 | NumDeclsLoaded, (unsigned)DeclsLoaded.size(), |
| 5563 | ((float)NumDeclsLoaded/DeclsLoaded.size() * 100)); |
| 5564 | if (!IdentifiersLoaded.empty()) |
| 5565 | std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n", |
| 5566 | NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(), |
| 5567 | ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100)); |
| 5568 | if (!MacrosLoaded.empty()) |
| 5569 | std::fprintf(stderr, " %u/%u macros read (%f%%)\n", |
| 5570 | NumMacrosLoaded, (unsigned)MacrosLoaded.size(), |
| 5571 | ((float)NumMacrosLoaded/MacrosLoaded.size() * 100)); |
| 5572 | if (!SelectorsLoaded.empty()) |
| 5573 | std::fprintf(stderr, " %u/%u selectors read (%f%%)\n", |
| 5574 | NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(), |
| 5575 | ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100)); |
| 5576 | if (TotalNumStatements) |
| 5577 | std::fprintf(stderr, " %u/%u statements read (%f%%)\n", |
| 5578 | NumStatementsRead, TotalNumStatements, |
| 5579 | ((float)NumStatementsRead/TotalNumStatements * 100)); |
| 5580 | if (TotalNumMacros) |
| 5581 | std::fprintf(stderr, " %u/%u macros read (%f%%)\n", |
| 5582 | NumMacrosRead, TotalNumMacros, |
| 5583 | ((float)NumMacrosRead/TotalNumMacros * 100)); |
| 5584 | if (TotalLexicalDeclContexts) |
| 5585 | std::fprintf(stderr, " %u/%u lexical declcontexts read (%f%%)\n", |
| 5586 | NumLexicalDeclContextsRead, TotalLexicalDeclContexts, |
| 5587 | ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts |
| 5588 | * 100)); |
| 5589 | if (TotalVisibleDeclContexts) |
| 5590 | std::fprintf(stderr, " %u/%u visible declcontexts read (%f%%)\n", |
| 5591 | NumVisibleDeclContextsRead, TotalVisibleDeclContexts, |
| 5592 | ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts |
| 5593 | * 100)); |
| 5594 | if (TotalNumMethodPoolEntries) { |
| 5595 | std::fprintf(stderr, " %u/%u method pool entries read (%f%%)\n", |
| 5596 | NumMethodPoolEntriesRead, TotalNumMethodPoolEntries, |
| 5597 | ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries |
| 5598 | * 100)); |
| 5599 | std::fprintf(stderr, " %u method pool misses\n", NumMethodPoolMisses); |
| 5600 | } |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 5601 | if (NumIdentifierLookupHits) { |
| 5602 | std::fprintf(stderr, |
| 5603 | " %u / %u identifier table lookups succeeded (%f%%)\n", |
| 5604 | NumIdentifierLookupHits, NumIdentifierLookups, |
| 5605 | (double)NumIdentifierLookupHits*100.0/NumIdentifierLookups); |
| 5606 | } |
| 5607 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5608 | std::fprintf(stderr, "\n"); |
| 5609 | dump(); |
| 5610 | std::fprintf(stderr, "\n"); |
| 5611 | } |
| 5612 | |
| 5613 | template<typename Key, typename ModuleFile, unsigned InitialCapacity> |
| 5614 | static void |
| 5615 | dumpModuleIDMap(StringRef Name, |
| 5616 | const ContinuousRangeMap<Key, ModuleFile *, |
| 5617 | InitialCapacity> &Map) { |
| 5618 | if (Map.begin() == Map.end()) |
| 5619 | return; |
| 5620 | |
| 5621 | typedef ContinuousRangeMap<Key, ModuleFile *, InitialCapacity> MapType; |
| 5622 | llvm::errs() << Name << ":\n"; |
| 5623 | for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end(); |
| 5624 | I != IEnd; ++I) { |
| 5625 | llvm::errs() << " " << I->first << " -> " << I->second->FileName |
| 5626 | << "\n"; |
| 5627 | } |
| 5628 | } |
| 5629 | |
| 5630 | void ASTReader::dump() { |
| 5631 | llvm::errs() << "*** PCH/ModuleFile Remappings:\n"; |
| 5632 | dumpModuleIDMap("Global bit offset map", GlobalBitOffsetsMap); |
| 5633 | dumpModuleIDMap("Global source location entry map", GlobalSLocEntryMap); |
| 5634 | dumpModuleIDMap("Global type map", GlobalTypeMap); |
| 5635 | dumpModuleIDMap("Global declaration map", GlobalDeclMap); |
| 5636 | dumpModuleIDMap("Global identifier map", GlobalIdentifierMap); |
| 5637 | dumpModuleIDMap("Global macro map", GlobalMacroMap); |
| 5638 | dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap); |
| 5639 | dumpModuleIDMap("Global selector map", GlobalSelectorMap); |
| 5640 | dumpModuleIDMap("Global preprocessed entity map", |
| 5641 | GlobalPreprocessedEntityMap); |
| 5642 | |
| 5643 | llvm::errs() << "\n*** PCH/Modules Loaded:"; |
| 5644 | for (ModuleManager::ModuleConstIterator M = ModuleMgr.begin(), |
| 5645 | MEnd = ModuleMgr.end(); |
| 5646 | M != MEnd; ++M) |
| 5647 | (*M)->dump(); |
| 5648 | } |
| 5649 | |
| 5650 | /// Return the amount of memory used by memory buffers, breaking down |
| 5651 | /// by heap-backed versus mmap'ed memory. |
| 5652 | void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const { |
| 5653 | for (ModuleConstIterator I = ModuleMgr.begin(), |
| 5654 | E = ModuleMgr.end(); I != E; ++I) { |
| 5655 | if (llvm::MemoryBuffer *buf = (*I)->Buffer.get()) { |
| 5656 | size_t bytes = buf->getBufferSize(); |
| 5657 | switch (buf->getBufferKind()) { |
| 5658 | case llvm::MemoryBuffer::MemoryBuffer_Malloc: |
| 5659 | sizes.malloc_bytes += bytes; |
| 5660 | break; |
| 5661 | case llvm::MemoryBuffer::MemoryBuffer_MMap: |
| 5662 | sizes.mmap_bytes += bytes; |
| 5663 | break; |
| 5664 | } |
| 5665 | } |
| 5666 | } |
| 5667 | } |
| 5668 | |
| 5669 | void ASTReader::InitializeSema(Sema &S) { |
| 5670 | SemaObj = &S; |
| 5671 | S.addExternalSource(this); |
| 5672 | |
| 5673 | // Makes sure any declarations that were deserialized "too early" |
| 5674 | // still get added to the identifier's declaration chains. |
| 5675 | for (unsigned I = 0, N = PreloadedDecls.size(); I != N; ++I) { |
| 5676 | SemaObj->pushExternalDeclIntoScope(PreloadedDecls[I], |
| 5677 | PreloadedDecls[I]->getDeclName()); |
| 5678 | } |
| 5679 | PreloadedDecls.clear(); |
| 5680 | |
| 5681 | // Load the offsets of the declarations that Sema references. |
| 5682 | // They will be lazily deserialized when needed. |
| 5683 | if (!SemaDeclRefs.empty()) { |
| 5684 | assert(SemaDeclRefs.size() == 2 && "More decl refs than expected!"); |
| 5685 | if (!SemaObj->StdNamespace) |
| 5686 | SemaObj->StdNamespace = SemaDeclRefs[0]; |
| 5687 | if (!SemaObj->StdBadAlloc) |
| 5688 | SemaObj->StdBadAlloc = SemaDeclRefs[1]; |
| 5689 | } |
| 5690 | |
| 5691 | if (!FPPragmaOptions.empty()) { |
| 5692 | assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS"); |
| 5693 | SemaObj->FPFeatures.fp_contract = FPPragmaOptions[0]; |
| 5694 | } |
| 5695 | |
| 5696 | if (!OpenCLExtensions.empty()) { |
| 5697 | unsigned I = 0; |
| 5698 | #define OPENCLEXT(nm) SemaObj->OpenCLFeatures.nm = OpenCLExtensions[I++]; |
| 5699 | #include "clang/Basic/OpenCLExtensions.def" |
| 5700 | |
| 5701 | assert(OpenCLExtensions.size() == I && "Wrong number of OPENCL_EXTENSIONS"); |
| 5702 | } |
| 5703 | } |
| 5704 | |
| 5705 | IdentifierInfo* ASTReader::get(const char *NameStart, const char *NameEnd) { |
| 5706 | // Note that we are loading an identifier. |
| 5707 | Deserializing AnIdentifier(this); |
| 5708 | |
| 5709 | IdentifierLookupVisitor Visitor(StringRef(NameStart, NameEnd - NameStart), |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 5710 | /*PriorGeneration=*/0, |
| 5711 | NumIdentifierLookups, |
| 5712 | NumIdentifierLookupHits); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5713 | ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor); |
| 5714 | IdentifierInfo *II = Visitor.getIdentifierInfo(); |
| 5715 | markIdentifierUpToDate(II); |
| 5716 | return II; |
| 5717 | } |
| 5718 | |
| 5719 | namespace clang { |
| 5720 | /// \brief An identifier-lookup iterator that enumerates all of the |
| 5721 | /// identifiers stored within a set of AST files. |
| 5722 | class ASTIdentifierIterator : public IdentifierIterator { |
| 5723 | /// \brief The AST reader whose identifiers are being enumerated. |
| 5724 | const ASTReader &Reader; |
| 5725 | |
| 5726 | /// \brief The current index into the chain of AST files stored in |
| 5727 | /// the AST reader. |
| 5728 | unsigned Index; |
| 5729 | |
| 5730 | /// \brief The current position within the identifier lookup table |
| 5731 | /// of the current AST file. |
| 5732 | ASTIdentifierLookupTable::key_iterator Current; |
| 5733 | |
| 5734 | /// \brief The end position within the identifier lookup table of |
| 5735 | /// the current AST file. |
| 5736 | ASTIdentifierLookupTable::key_iterator End; |
| 5737 | |
| 5738 | public: |
| 5739 | explicit ASTIdentifierIterator(const ASTReader &Reader); |
| 5740 | |
| 5741 | virtual StringRef Next(); |
| 5742 | }; |
| 5743 | } |
| 5744 | |
| 5745 | ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader) |
| 5746 | : Reader(Reader), Index(Reader.ModuleMgr.size() - 1) { |
| 5747 | ASTIdentifierLookupTable *IdTable |
| 5748 | = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].IdentifierLookupTable; |
| 5749 | Current = IdTable->key_begin(); |
| 5750 | End = IdTable->key_end(); |
| 5751 | } |
| 5752 | |
| 5753 | StringRef ASTIdentifierIterator::Next() { |
| 5754 | while (Current == End) { |
| 5755 | // If we have exhausted all of our AST files, we're done. |
| 5756 | if (Index == 0) |
| 5757 | return StringRef(); |
| 5758 | |
| 5759 | --Index; |
| 5760 | ASTIdentifierLookupTable *IdTable |
| 5761 | = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index]. |
| 5762 | IdentifierLookupTable; |
| 5763 | Current = IdTable->key_begin(); |
| 5764 | End = IdTable->key_end(); |
| 5765 | } |
| 5766 | |
| 5767 | // We have any identifiers remaining in the current AST file; return |
| 5768 | // the next one. |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 5769 | StringRef Result = *Current; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5770 | ++Current; |
Douglas Gregor | 479633c | 2013-01-23 18:53:14 +0000 | [diff] [blame] | 5771 | return Result; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5772 | } |
| 5773 | |
| 5774 | IdentifierIterator *ASTReader::getIdentifiers() const { |
| 5775 | return new ASTIdentifierIterator(*this); |
| 5776 | } |
| 5777 | |
| 5778 | namespace clang { namespace serialization { |
| 5779 | class ReadMethodPoolVisitor { |
| 5780 | ASTReader &Reader; |
| 5781 | Selector Sel; |
| 5782 | unsigned PriorGeneration; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5783 | SmallVector<ObjCMethodDecl *, 4> InstanceMethods; |
| 5784 | SmallVector<ObjCMethodDecl *, 4> FactoryMethods; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5785 | |
| 5786 | public: |
| 5787 | ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel, |
| 5788 | unsigned PriorGeneration) |
| 5789 | : Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) { } |
| 5790 | |
| 5791 | static bool visit(ModuleFile &M, void *UserData) { |
| 5792 | ReadMethodPoolVisitor *This |
| 5793 | = static_cast<ReadMethodPoolVisitor *>(UserData); |
| 5794 | |
| 5795 | if (!M.SelectorLookupTable) |
| 5796 | return false; |
| 5797 | |
| 5798 | // If we've already searched this module file, skip it now. |
| 5799 | if (M.Generation <= This->PriorGeneration) |
| 5800 | return true; |
| 5801 | |
| 5802 | ASTSelectorLookupTable *PoolTable |
| 5803 | = (ASTSelectorLookupTable*)M.SelectorLookupTable; |
| 5804 | ASTSelectorLookupTable::iterator Pos = PoolTable->find(This->Sel); |
| 5805 | if (Pos == PoolTable->end()) |
| 5806 | return false; |
| 5807 | |
| 5808 | ++This->Reader.NumSelectorsRead; |
| 5809 | // FIXME: Not quite happy with the statistics here. We probably should |
| 5810 | // disable this tracking when called via LoadSelector. |
| 5811 | // Also, should entries without methods count as misses? |
| 5812 | ++This->Reader.NumMethodPoolEntriesRead; |
| 5813 | ASTSelectorLookupTrait::data_type Data = *Pos; |
| 5814 | if (This->Reader.DeserializationListener) |
| 5815 | This->Reader.DeserializationListener->SelectorRead(Data.ID, |
| 5816 | This->Sel); |
| 5817 | |
| 5818 | This->InstanceMethods.append(Data.Instance.begin(), Data.Instance.end()); |
| 5819 | This->FactoryMethods.append(Data.Factory.begin(), Data.Factory.end()); |
| 5820 | return true; |
| 5821 | } |
| 5822 | |
| 5823 | /// \brief Retrieve the instance methods found by this visitor. |
| 5824 | ArrayRef<ObjCMethodDecl *> getInstanceMethods() const { |
| 5825 | return InstanceMethods; |
| 5826 | } |
| 5827 | |
| 5828 | /// \brief Retrieve the instance methods found by this visitor. |
| 5829 | ArrayRef<ObjCMethodDecl *> getFactoryMethods() const { |
| 5830 | return FactoryMethods; |
| 5831 | } |
| 5832 | }; |
| 5833 | } } // end namespace clang::serialization |
| 5834 | |
| 5835 | /// \brief Add the given set of methods to the method list. |
| 5836 | static void addMethodsToPool(Sema &S, ArrayRef<ObjCMethodDecl *> Methods, |
| 5837 | ObjCMethodList &List) { |
| 5838 | for (unsigned I = 0, N = Methods.size(); I != N; ++I) { |
| 5839 | S.addMethodToGlobalList(&List, Methods[I]); |
| 5840 | } |
| 5841 | } |
| 5842 | |
| 5843 | void ASTReader::ReadMethodPool(Selector Sel) { |
| 5844 | // Get the selector generation and update it to the current generation. |
| 5845 | unsigned &Generation = SelectorGeneration[Sel]; |
| 5846 | unsigned PriorGeneration = Generation; |
| 5847 | Generation = CurrentGeneration; |
| 5848 | |
| 5849 | // Search for methods defined with this selector. |
| 5850 | ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration); |
| 5851 | ModuleMgr.visit(&ReadMethodPoolVisitor::visit, &Visitor); |
| 5852 | |
| 5853 | if (Visitor.getInstanceMethods().empty() && |
| 5854 | Visitor.getFactoryMethods().empty()) { |
| 5855 | ++NumMethodPoolMisses; |
| 5856 | return; |
| 5857 | } |
| 5858 | |
| 5859 | if (!getSema()) |
| 5860 | return; |
| 5861 | |
| 5862 | Sema &S = *getSema(); |
| 5863 | Sema::GlobalMethodPool::iterator Pos |
| 5864 | = S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first; |
| 5865 | |
| 5866 | addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first); |
| 5867 | addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second); |
| 5868 | } |
| 5869 | |
| 5870 | void ASTReader::ReadKnownNamespaces( |
| 5871 | SmallVectorImpl<NamespaceDecl *> &Namespaces) { |
| 5872 | Namespaces.clear(); |
| 5873 | |
| 5874 | for (unsigned I = 0, N = KnownNamespaces.size(); I != N; ++I) { |
| 5875 | if (NamespaceDecl *Namespace |
| 5876 | = dyn_cast_or_null<NamespaceDecl>(GetDecl(KnownNamespaces[I]))) |
| 5877 | Namespaces.push_back(Namespace); |
| 5878 | } |
| 5879 | } |
| 5880 | |
| 5881 | void ASTReader::ReadTentativeDefinitions( |
| 5882 | SmallVectorImpl<VarDecl *> &TentativeDefs) { |
| 5883 | for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) { |
| 5884 | VarDecl *Var = dyn_cast_or_null<VarDecl>(GetDecl(TentativeDefinitions[I])); |
| 5885 | if (Var) |
| 5886 | TentativeDefs.push_back(Var); |
| 5887 | } |
| 5888 | TentativeDefinitions.clear(); |
| 5889 | } |
| 5890 | |
| 5891 | void ASTReader::ReadUnusedFileScopedDecls( |
| 5892 | SmallVectorImpl<const DeclaratorDecl *> &Decls) { |
| 5893 | for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) { |
| 5894 | DeclaratorDecl *D |
| 5895 | = dyn_cast_or_null<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I])); |
| 5896 | if (D) |
| 5897 | Decls.push_back(D); |
| 5898 | } |
| 5899 | UnusedFileScopedDecls.clear(); |
| 5900 | } |
| 5901 | |
| 5902 | void ASTReader::ReadDelegatingConstructors( |
| 5903 | SmallVectorImpl<CXXConstructorDecl *> &Decls) { |
| 5904 | for (unsigned I = 0, N = DelegatingCtorDecls.size(); I != N; ++I) { |
| 5905 | CXXConstructorDecl *D |
| 5906 | = dyn_cast_or_null<CXXConstructorDecl>(GetDecl(DelegatingCtorDecls[I])); |
| 5907 | if (D) |
| 5908 | Decls.push_back(D); |
| 5909 | } |
| 5910 | DelegatingCtorDecls.clear(); |
| 5911 | } |
| 5912 | |
| 5913 | void ASTReader::ReadExtVectorDecls(SmallVectorImpl<TypedefNameDecl *> &Decls) { |
| 5914 | for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I) { |
| 5915 | TypedefNameDecl *D |
| 5916 | = dyn_cast_or_null<TypedefNameDecl>(GetDecl(ExtVectorDecls[I])); |
| 5917 | if (D) |
| 5918 | Decls.push_back(D); |
| 5919 | } |
| 5920 | ExtVectorDecls.clear(); |
| 5921 | } |
| 5922 | |
| 5923 | void ASTReader::ReadDynamicClasses(SmallVectorImpl<CXXRecordDecl *> &Decls) { |
| 5924 | for (unsigned I = 0, N = DynamicClasses.size(); I != N; ++I) { |
| 5925 | CXXRecordDecl *D |
| 5926 | = dyn_cast_or_null<CXXRecordDecl>(GetDecl(DynamicClasses[I])); |
| 5927 | if (D) |
| 5928 | Decls.push_back(D); |
| 5929 | } |
| 5930 | DynamicClasses.clear(); |
| 5931 | } |
| 5932 | |
| 5933 | void |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 5934 | ASTReader::ReadLocallyScopedExternCDecls(SmallVectorImpl<NamedDecl *> &Decls) { |
| 5935 | for (unsigned I = 0, N = LocallyScopedExternCDecls.size(); I != N; ++I) { |
| 5936 | NamedDecl *D |
| 5937 | = dyn_cast_or_null<NamedDecl>(GetDecl(LocallyScopedExternCDecls[I])); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5938 | if (D) |
| 5939 | Decls.push_back(D); |
| 5940 | } |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 5941 | LocallyScopedExternCDecls.clear(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5942 | } |
| 5943 | |
| 5944 | void ASTReader::ReadReferencedSelectors( |
| 5945 | SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) { |
| 5946 | if (ReferencedSelectorsData.empty()) |
| 5947 | return; |
| 5948 | |
| 5949 | // If there are @selector references added them to its pool. This is for |
| 5950 | // implementation of -Wselector. |
| 5951 | unsigned int DataSize = ReferencedSelectorsData.size()-1; |
| 5952 | unsigned I = 0; |
| 5953 | while (I < DataSize) { |
| 5954 | Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]); |
| 5955 | SourceLocation SelLoc |
| 5956 | = SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]); |
| 5957 | Sels.push_back(std::make_pair(Sel, SelLoc)); |
| 5958 | } |
| 5959 | ReferencedSelectorsData.clear(); |
| 5960 | } |
| 5961 | |
| 5962 | void ASTReader::ReadWeakUndeclaredIdentifiers( |
| 5963 | SmallVectorImpl<std::pair<IdentifierInfo *, WeakInfo> > &WeakIDs) { |
| 5964 | if (WeakUndeclaredIdentifiers.empty()) |
| 5965 | return; |
| 5966 | |
| 5967 | for (unsigned I = 0, N = WeakUndeclaredIdentifiers.size(); I < N; /*none*/) { |
| 5968 | IdentifierInfo *WeakId |
| 5969 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]); |
| 5970 | IdentifierInfo *AliasId |
| 5971 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]); |
| 5972 | SourceLocation Loc |
| 5973 | = SourceLocation::getFromRawEncoding(WeakUndeclaredIdentifiers[I++]); |
| 5974 | bool Used = WeakUndeclaredIdentifiers[I++]; |
| 5975 | WeakInfo WI(AliasId, Loc); |
| 5976 | WI.setUsed(Used); |
| 5977 | WeakIDs.push_back(std::make_pair(WeakId, WI)); |
| 5978 | } |
| 5979 | WeakUndeclaredIdentifiers.clear(); |
| 5980 | } |
| 5981 | |
| 5982 | void ASTReader::ReadUsedVTables(SmallVectorImpl<ExternalVTableUse> &VTables) { |
| 5983 | for (unsigned Idx = 0, N = VTableUses.size(); Idx < N; /* In loop */) { |
| 5984 | ExternalVTableUse VT; |
| 5985 | VT.Record = dyn_cast_or_null<CXXRecordDecl>(GetDecl(VTableUses[Idx++])); |
| 5986 | VT.Location = SourceLocation::getFromRawEncoding(VTableUses[Idx++]); |
| 5987 | VT.DefinitionRequired = VTableUses[Idx++]; |
| 5988 | VTables.push_back(VT); |
| 5989 | } |
| 5990 | |
| 5991 | VTableUses.clear(); |
| 5992 | } |
| 5993 | |
| 5994 | void ASTReader::ReadPendingInstantiations( |
| 5995 | SmallVectorImpl<std::pair<ValueDecl *, SourceLocation> > &Pending) { |
| 5996 | for (unsigned Idx = 0, N = PendingInstantiations.size(); Idx < N;) { |
| 5997 | ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++])); |
| 5998 | SourceLocation Loc |
| 5999 | = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]); |
| 6000 | |
| 6001 | Pending.push_back(std::make_pair(D, Loc)); |
| 6002 | } |
| 6003 | PendingInstantiations.clear(); |
| 6004 | } |
| 6005 | |
| 6006 | void ASTReader::LoadSelector(Selector Sel) { |
| 6007 | // It would be complicated to avoid reading the methods anyway. So don't. |
| 6008 | ReadMethodPool(Sel); |
| 6009 | } |
| 6010 | |
| 6011 | void ASTReader::SetIdentifierInfo(IdentifierID ID, IdentifierInfo *II) { |
| 6012 | assert(ID && "Non-zero identifier ID required"); |
| 6013 | assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range"); |
| 6014 | IdentifiersLoaded[ID - 1] = II; |
| 6015 | if (DeserializationListener) |
| 6016 | DeserializationListener->IdentifierRead(ID, II); |
| 6017 | } |
| 6018 | |
| 6019 | /// \brief Set the globally-visible declarations associated with the given |
| 6020 | /// identifier. |
| 6021 | /// |
| 6022 | /// If the AST reader is currently in a state where the given declaration IDs |
| 6023 | /// cannot safely be resolved, they are queued until it is safe to resolve |
| 6024 | /// them. |
| 6025 | /// |
| 6026 | /// \param II an IdentifierInfo that refers to one or more globally-visible |
| 6027 | /// declarations. |
| 6028 | /// |
| 6029 | /// \param DeclIDs the set of declaration IDs with the name @p II that are |
| 6030 | /// visible at global scope. |
| 6031 | /// |
| 6032 | /// \param Nonrecursive should be true to indicate that the caller knows that |
| 6033 | /// this call is non-recursive, and therefore the globally-visible declarations |
| 6034 | /// will not be placed onto the pending queue. |
| 6035 | void |
| 6036 | ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II, |
| 6037 | const SmallVectorImpl<uint32_t> &DeclIDs, |
| 6038 | bool Nonrecursive) { |
| 6039 | if (NumCurrentElementsDeserializing && !Nonrecursive) { |
| 6040 | PendingIdentifierInfos.push_back(PendingIdentifierInfo()); |
| 6041 | PendingIdentifierInfo &PII = PendingIdentifierInfos.back(); |
| 6042 | PII.II = II; |
| 6043 | PII.DeclIDs.append(DeclIDs.begin(), DeclIDs.end()); |
| 6044 | return; |
| 6045 | } |
| 6046 | |
| 6047 | for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) { |
| 6048 | NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I])); |
| 6049 | if (SemaObj) { |
| 6050 | // Introduce this declaration into the translation-unit scope |
| 6051 | // and add it to the declaration chain for this identifier, so |
| 6052 | // that (unqualified) name lookup will find it. |
| 6053 | SemaObj->pushExternalDeclIntoScope(D, II); |
| 6054 | } else { |
| 6055 | // Queue this declaration so that it will be added to the |
| 6056 | // translation unit scope and identifier's declaration chain |
| 6057 | // once a Sema object is known. |
| 6058 | PreloadedDecls.push_back(D); |
| 6059 | } |
| 6060 | } |
| 6061 | } |
| 6062 | |
Douglas Gregor | 8222b89 | 2013-01-21 16:52:34 +0000 | [diff] [blame] | 6063 | IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6064 | if (ID == 0) |
| 6065 | return 0; |
| 6066 | |
| 6067 | if (IdentifiersLoaded.empty()) { |
| 6068 | Error("no identifier table in AST file"); |
| 6069 | return 0; |
| 6070 | } |
| 6071 | |
| 6072 | ID -= 1; |
| 6073 | if (!IdentifiersLoaded[ID]) { |
| 6074 | GlobalIdentifierMapType::iterator I = GlobalIdentifierMap.find(ID + 1); |
| 6075 | assert(I != GlobalIdentifierMap.end() && "Corrupted global identifier map"); |
| 6076 | ModuleFile *M = I->second; |
| 6077 | unsigned Index = ID - M->BaseIdentifierID; |
| 6078 | const char *Str = M->IdentifierTableData + M->IdentifierOffsets[Index]; |
| 6079 | |
| 6080 | // All of the strings in the AST file are preceded by a 16-bit length. |
| 6081 | // Extract that 16-bit length to avoid having to execute strlen(). |
| 6082 | // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as |
| 6083 | // unsigned integers. This is important to avoid integer overflow when |
| 6084 | // we cast them to 'unsigned'. |
| 6085 | const unsigned char *StrLenPtr = (const unsigned char*) Str - 2; |
| 6086 | unsigned StrLen = (((unsigned) StrLenPtr[0]) |
| 6087 | | (((unsigned) StrLenPtr[1]) << 8)) - 1; |
Douglas Gregor | 8222b89 | 2013-01-21 16:52:34 +0000 | [diff] [blame] | 6088 | IdentifiersLoaded[ID] |
| 6089 | = &PP.getIdentifierTable().get(StringRef(Str, StrLen)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6090 | if (DeserializationListener) |
| 6091 | DeserializationListener->IdentifierRead(ID + 1, IdentifiersLoaded[ID]); |
| 6092 | } |
| 6093 | |
| 6094 | return IdentifiersLoaded[ID]; |
| 6095 | } |
| 6096 | |
Douglas Gregor | 8222b89 | 2013-01-21 16:52:34 +0000 | [diff] [blame] | 6097 | IdentifierInfo *ASTReader::getLocalIdentifier(ModuleFile &M, unsigned LocalID) { |
| 6098 | return DecodeIdentifierInfo(getGlobalIdentifierID(M, LocalID)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6099 | } |
| 6100 | |
| 6101 | IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) { |
| 6102 | if (LocalID < NUM_PREDEF_IDENT_IDS) |
| 6103 | return LocalID; |
| 6104 | |
| 6105 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6106 | = M.IdentifierRemap.find(LocalID - NUM_PREDEF_IDENT_IDS); |
| 6107 | assert(I != M.IdentifierRemap.end() |
| 6108 | && "Invalid index into identifier index remap"); |
| 6109 | |
| 6110 | return LocalID + I->second; |
| 6111 | } |
| 6112 | |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 6113 | MacroInfo *ASTReader::getMacro(MacroID ID, MacroInfo *Hint) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6114 | if (ID == 0) |
| 6115 | return 0; |
| 6116 | |
| 6117 | if (MacrosLoaded.empty()) { |
| 6118 | Error("no macro table in AST file"); |
| 6119 | return 0; |
| 6120 | } |
| 6121 | |
| 6122 | ID -= NUM_PREDEF_MACRO_IDS; |
| 6123 | if (!MacrosLoaded[ID]) { |
| 6124 | GlobalMacroMapType::iterator I |
| 6125 | = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS); |
| 6126 | assert(I != GlobalMacroMap.end() && "Corrupted global macro map"); |
| 6127 | ModuleFile *M = I->second; |
| 6128 | unsigned Index = ID - M->BaseMacroID; |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 6129 | ReadMacroRecord(*M, M->MacroOffsets[Index], Hint); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6130 | } |
| 6131 | |
| 6132 | return MacrosLoaded[ID]; |
| 6133 | } |
| 6134 | |
| 6135 | MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) { |
| 6136 | if (LocalID < NUM_PREDEF_MACRO_IDS) |
| 6137 | return LocalID; |
| 6138 | |
| 6139 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6140 | = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS); |
| 6141 | assert(I != M.MacroRemap.end() && "Invalid index into macro index remap"); |
| 6142 | |
| 6143 | return LocalID + I->second; |
| 6144 | } |
| 6145 | |
| 6146 | serialization::SubmoduleID |
| 6147 | ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) { |
| 6148 | if (LocalID < NUM_PREDEF_SUBMODULE_IDS) |
| 6149 | return LocalID; |
| 6150 | |
| 6151 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6152 | = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS); |
| 6153 | assert(I != M.SubmoduleRemap.end() |
| 6154 | && "Invalid index into submodule index remap"); |
| 6155 | |
| 6156 | return LocalID + I->second; |
| 6157 | } |
| 6158 | |
| 6159 | Module *ASTReader::getSubmodule(SubmoduleID GlobalID) { |
| 6160 | if (GlobalID < NUM_PREDEF_SUBMODULE_IDS) { |
| 6161 | assert(GlobalID == 0 && "Unhandled global submodule ID"); |
| 6162 | return 0; |
| 6163 | } |
| 6164 | |
| 6165 | if (GlobalID > SubmodulesLoaded.size()) { |
| 6166 | Error("submodule ID out of range in AST file"); |
| 6167 | return 0; |
| 6168 | } |
| 6169 | |
| 6170 | return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS]; |
| 6171 | } |
Douglas Gregor | ca2ab45 | 2013-01-12 01:29:50 +0000 | [diff] [blame] | 6172 | |
| 6173 | Module *ASTReader::getModule(unsigned ID) { |
| 6174 | return getSubmodule(ID); |
| 6175 | } |
| 6176 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6177 | Selector ASTReader::getLocalSelector(ModuleFile &M, unsigned LocalID) { |
| 6178 | return DecodeSelector(getGlobalSelectorID(M, LocalID)); |
| 6179 | } |
| 6180 | |
| 6181 | Selector ASTReader::DecodeSelector(serialization::SelectorID ID) { |
| 6182 | if (ID == 0) |
| 6183 | return Selector(); |
| 6184 | |
| 6185 | if (ID > SelectorsLoaded.size()) { |
| 6186 | Error("selector ID out of range in AST file"); |
| 6187 | return Selector(); |
| 6188 | } |
| 6189 | |
| 6190 | if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == 0) { |
| 6191 | // Load this selector from the selector table. |
| 6192 | GlobalSelectorMapType::iterator I = GlobalSelectorMap.find(ID); |
| 6193 | assert(I != GlobalSelectorMap.end() && "Corrupted global selector map"); |
| 6194 | ModuleFile &M = *I->second; |
| 6195 | ASTSelectorLookupTrait Trait(*this, M); |
| 6196 | unsigned Idx = ID - M.BaseSelectorID - NUM_PREDEF_SELECTOR_IDS; |
| 6197 | SelectorsLoaded[ID - 1] = |
| 6198 | Trait.ReadKey(M.SelectorLookupTableData + M.SelectorOffsets[Idx], 0); |
| 6199 | if (DeserializationListener) |
| 6200 | DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]); |
| 6201 | } |
| 6202 | |
| 6203 | return SelectorsLoaded[ID - 1]; |
| 6204 | } |
| 6205 | |
| 6206 | Selector ASTReader::GetExternalSelector(serialization::SelectorID ID) { |
| 6207 | return DecodeSelector(ID); |
| 6208 | } |
| 6209 | |
| 6210 | uint32_t ASTReader::GetNumExternalSelectors() { |
| 6211 | // ID 0 (the null selector) is considered an external selector. |
| 6212 | return getTotalNumSelectors() + 1; |
| 6213 | } |
| 6214 | |
| 6215 | serialization::SelectorID |
| 6216 | ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const { |
| 6217 | if (LocalID < NUM_PREDEF_SELECTOR_IDS) |
| 6218 | return LocalID; |
| 6219 | |
| 6220 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6221 | = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS); |
| 6222 | assert(I != M.SelectorRemap.end() |
| 6223 | && "Invalid index into selector index remap"); |
| 6224 | |
| 6225 | return LocalID + I->second; |
| 6226 | } |
| 6227 | |
| 6228 | DeclarationName |
| 6229 | ASTReader::ReadDeclarationName(ModuleFile &F, |
| 6230 | const RecordData &Record, unsigned &Idx) { |
| 6231 | DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++]; |
| 6232 | switch (Kind) { |
| 6233 | case DeclarationName::Identifier: |
Douglas Gregor | 8222b89 | 2013-01-21 16:52:34 +0000 | [diff] [blame] | 6234 | return DeclarationName(GetIdentifierInfo(F, Record, Idx)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6235 | |
| 6236 | case DeclarationName::ObjCZeroArgSelector: |
| 6237 | case DeclarationName::ObjCOneArgSelector: |
| 6238 | case DeclarationName::ObjCMultiArgSelector: |
| 6239 | return DeclarationName(ReadSelector(F, Record, Idx)); |
| 6240 | |
| 6241 | case DeclarationName::CXXConstructorName: |
| 6242 | return Context.DeclarationNames.getCXXConstructorName( |
| 6243 | Context.getCanonicalType(readType(F, Record, Idx))); |
| 6244 | |
| 6245 | case DeclarationName::CXXDestructorName: |
| 6246 | return Context.DeclarationNames.getCXXDestructorName( |
| 6247 | Context.getCanonicalType(readType(F, Record, Idx))); |
| 6248 | |
| 6249 | case DeclarationName::CXXConversionFunctionName: |
| 6250 | return Context.DeclarationNames.getCXXConversionFunctionName( |
| 6251 | Context.getCanonicalType(readType(F, Record, Idx))); |
| 6252 | |
| 6253 | case DeclarationName::CXXOperatorName: |
| 6254 | return Context.DeclarationNames.getCXXOperatorName( |
| 6255 | (OverloadedOperatorKind)Record[Idx++]); |
| 6256 | |
| 6257 | case DeclarationName::CXXLiteralOperatorName: |
| 6258 | return Context.DeclarationNames.getCXXLiteralOperatorName( |
| 6259 | GetIdentifierInfo(F, Record, Idx)); |
| 6260 | |
| 6261 | case DeclarationName::CXXUsingDirective: |
| 6262 | return DeclarationName::getUsingDirectiveName(); |
| 6263 | } |
| 6264 | |
| 6265 | llvm_unreachable("Invalid NameKind!"); |
| 6266 | } |
| 6267 | |
| 6268 | void ASTReader::ReadDeclarationNameLoc(ModuleFile &F, |
| 6269 | DeclarationNameLoc &DNLoc, |
| 6270 | DeclarationName Name, |
| 6271 | const RecordData &Record, unsigned &Idx) { |
| 6272 | switch (Name.getNameKind()) { |
| 6273 | case DeclarationName::CXXConstructorName: |
| 6274 | case DeclarationName::CXXDestructorName: |
| 6275 | case DeclarationName::CXXConversionFunctionName: |
| 6276 | DNLoc.NamedType.TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6277 | break; |
| 6278 | |
| 6279 | case DeclarationName::CXXOperatorName: |
| 6280 | DNLoc.CXXOperatorName.BeginOpNameLoc |
| 6281 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); |
| 6282 | DNLoc.CXXOperatorName.EndOpNameLoc |
| 6283 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); |
| 6284 | break; |
| 6285 | |
| 6286 | case DeclarationName::CXXLiteralOperatorName: |
| 6287 | DNLoc.CXXLiteralOperatorName.OpNameLoc |
| 6288 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); |
| 6289 | break; |
| 6290 | |
| 6291 | case DeclarationName::Identifier: |
| 6292 | case DeclarationName::ObjCZeroArgSelector: |
| 6293 | case DeclarationName::ObjCOneArgSelector: |
| 6294 | case DeclarationName::ObjCMultiArgSelector: |
| 6295 | case DeclarationName::CXXUsingDirective: |
| 6296 | break; |
| 6297 | } |
| 6298 | } |
| 6299 | |
| 6300 | void ASTReader::ReadDeclarationNameInfo(ModuleFile &F, |
| 6301 | DeclarationNameInfo &NameInfo, |
| 6302 | const RecordData &Record, unsigned &Idx) { |
| 6303 | NameInfo.setName(ReadDeclarationName(F, Record, Idx)); |
| 6304 | NameInfo.setLoc(ReadSourceLocation(F, Record, Idx)); |
| 6305 | DeclarationNameLoc DNLoc; |
| 6306 | ReadDeclarationNameLoc(F, DNLoc, NameInfo.getName(), Record, Idx); |
| 6307 | NameInfo.setInfo(DNLoc); |
| 6308 | } |
| 6309 | |
| 6310 | void ASTReader::ReadQualifierInfo(ModuleFile &F, QualifierInfo &Info, |
| 6311 | const RecordData &Record, unsigned &Idx) { |
| 6312 | Info.QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx); |
| 6313 | unsigned NumTPLists = Record[Idx++]; |
| 6314 | Info.NumTemplParamLists = NumTPLists; |
| 6315 | if (NumTPLists) { |
| 6316 | Info.TemplParamLists = new (Context) TemplateParameterList*[NumTPLists]; |
| 6317 | for (unsigned i=0; i != NumTPLists; ++i) |
| 6318 | Info.TemplParamLists[i] = ReadTemplateParameterList(F, Record, Idx); |
| 6319 | } |
| 6320 | } |
| 6321 | |
| 6322 | TemplateName |
| 6323 | ASTReader::ReadTemplateName(ModuleFile &F, const RecordData &Record, |
| 6324 | unsigned &Idx) { |
| 6325 | TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++]; |
| 6326 | switch (Kind) { |
| 6327 | case TemplateName::Template: |
| 6328 | return TemplateName(ReadDeclAs<TemplateDecl>(F, Record, Idx)); |
| 6329 | |
| 6330 | case TemplateName::OverloadedTemplate: { |
| 6331 | unsigned size = Record[Idx++]; |
| 6332 | UnresolvedSet<8> Decls; |
| 6333 | while (size--) |
| 6334 | Decls.addDecl(ReadDeclAs<NamedDecl>(F, Record, Idx)); |
| 6335 | |
| 6336 | return Context.getOverloadedTemplateName(Decls.begin(), Decls.end()); |
| 6337 | } |
| 6338 | |
| 6339 | case TemplateName::QualifiedTemplate: { |
| 6340 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx); |
| 6341 | bool hasTemplKeyword = Record[Idx++]; |
| 6342 | TemplateDecl *Template = ReadDeclAs<TemplateDecl>(F, Record, Idx); |
| 6343 | return Context.getQualifiedTemplateName(NNS, hasTemplKeyword, Template); |
| 6344 | } |
| 6345 | |
| 6346 | case TemplateName::DependentTemplate: { |
| 6347 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx); |
| 6348 | if (Record[Idx++]) // isIdentifier |
| 6349 | return Context.getDependentTemplateName(NNS, |
| 6350 | GetIdentifierInfo(F, Record, |
| 6351 | Idx)); |
| 6352 | return Context.getDependentTemplateName(NNS, |
| 6353 | (OverloadedOperatorKind)Record[Idx++]); |
| 6354 | } |
| 6355 | |
| 6356 | case TemplateName::SubstTemplateTemplateParm: { |
| 6357 | TemplateTemplateParmDecl *param |
| 6358 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx); |
| 6359 | if (!param) return TemplateName(); |
| 6360 | TemplateName replacement = ReadTemplateName(F, Record, Idx); |
| 6361 | return Context.getSubstTemplateTemplateParm(param, replacement); |
| 6362 | } |
| 6363 | |
| 6364 | case TemplateName::SubstTemplateTemplateParmPack: { |
| 6365 | TemplateTemplateParmDecl *Param |
| 6366 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx); |
| 6367 | if (!Param) |
| 6368 | return TemplateName(); |
| 6369 | |
| 6370 | TemplateArgument ArgPack = ReadTemplateArgument(F, Record, Idx); |
| 6371 | if (ArgPack.getKind() != TemplateArgument::Pack) |
| 6372 | return TemplateName(); |
| 6373 | |
| 6374 | return Context.getSubstTemplateTemplateParmPack(Param, ArgPack); |
| 6375 | } |
| 6376 | } |
| 6377 | |
| 6378 | llvm_unreachable("Unhandled template name kind!"); |
| 6379 | } |
| 6380 | |
| 6381 | TemplateArgument |
| 6382 | ASTReader::ReadTemplateArgument(ModuleFile &F, |
| 6383 | const RecordData &Record, unsigned &Idx) { |
| 6384 | TemplateArgument::ArgKind Kind = (TemplateArgument::ArgKind)Record[Idx++]; |
| 6385 | switch (Kind) { |
| 6386 | case TemplateArgument::Null: |
| 6387 | return TemplateArgument(); |
| 6388 | case TemplateArgument::Type: |
| 6389 | return TemplateArgument(readType(F, Record, Idx)); |
| 6390 | case TemplateArgument::Declaration: { |
| 6391 | ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx); |
| 6392 | bool ForReferenceParam = Record[Idx++]; |
| 6393 | return TemplateArgument(D, ForReferenceParam); |
| 6394 | } |
| 6395 | case TemplateArgument::NullPtr: |
| 6396 | return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true); |
| 6397 | case TemplateArgument::Integral: { |
| 6398 | llvm::APSInt Value = ReadAPSInt(Record, Idx); |
| 6399 | QualType T = readType(F, Record, Idx); |
| 6400 | return TemplateArgument(Context, Value, T); |
| 6401 | } |
| 6402 | case TemplateArgument::Template: |
| 6403 | return TemplateArgument(ReadTemplateName(F, Record, Idx)); |
| 6404 | case TemplateArgument::TemplateExpansion: { |
| 6405 | TemplateName Name = ReadTemplateName(F, Record, Idx); |
| 6406 | llvm::Optional<unsigned> NumTemplateExpansions; |
| 6407 | if (unsigned NumExpansions = Record[Idx++]) |
| 6408 | NumTemplateExpansions = NumExpansions - 1; |
| 6409 | return TemplateArgument(Name, NumTemplateExpansions); |
| 6410 | } |
| 6411 | case TemplateArgument::Expression: |
| 6412 | return TemplateArgument(ReadExpr(F)); |
| 6413 | case TemplateArgument::Pack: { |
| 6414 | unsigned NumArgs = Record[Idx++]; |
| 6415 | TemplateArgument *Args = new (Context) TemplateArgument[NumArgs]; |
| 6416 | for (unsigned I = 0; I != NumArgs; ++I) |
| 6417 | Args[I] = ReadTemplateArgument(F, Record, Idx); |
| 6418 | return TemplateArgument(Args, NumArgs); |
| 6419 | } |
| 6420 | } |
| 6421 | |
| 6422 | llvm_unreachable("Unhandled template argument kind!"); |
| 6423 | } |
| 6424 | |
| 6425 | TemplateParameterList * |
| 6426 | ASTReader::ReadTemplateParameterList(ModuleFile &F, |
| 6427 | const RecordData &Record, unsigned &Idx) { |
| 6428 | SourceLocation TemplateLoc = ReadSourceLocation(F, Record, Idx); |
| 6429 | SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Idx); |
| 6430 | SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Idx); |
| 6431 | |
| 6432 | unsigned NumParams = Record[Idx++]; |
| 6433 | SmallVector<NamedDecl *, 16> Params; |
| 6434 | Params.reserve(NumParams); |
| 6435 | while (NumParams--) |
| 6436 | Params.push_back(ReadDeclAs<NamedDecl>(F, Record, Idx)); |
| 6437 | |
| 6438 | TemplateParameterList* TemplateParams = |
| 6439 | TemplateParameterList::Create(Context, TemplateLoc, LAngleLoc, |
| 6440 | Params.data(), Params.size(), RAngleLoc); |
| 6441 | return TemplateParams; |
| 6442 | } |
| 6443 | |
| 6444 | void |
| 6445 | ASTReader:: |
| 6446 | ReadTemplateArgumentList(SmallVector<TemplateArgument, 8> &TemplArgs, |
| 6447 | ModuleFile &F, const RecordData &Record, |
| 6448 | unsigned &Idx) { |
| 6449 | unsigned NumTemplateArgs = Record[Idx++]; |
| 6450 | TemplArgs.reserve(NumTemplateArgs); |
| 6451 | while (NumTemplateArgs--) |
| 6452 | TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx)); |
| 6453 | } |
| 6454 | |
| 6455 | /// \brief Read a UnresolvedSet structure. |
| 6456 | void ASTReader::ReadUnresolvedSet(ModuleFile &F, ASTUnresolvedSet &Set, |
| 6457 | const RecordData &Record, unsigned &Idx) { |
| 6458 | unsigned NumDecls = Record[Idx++]; |
| 6459 | Set.reserve(Context, NumDecls); |
| 6460 | while (NumDecls--) { |
| 6461 | NamedDecl *D = ReadDeclAs<NamedDecl>(F, Record, Idx); |
| 6462 | AccessSpecifier AS = (AccessSpecifier)Record[Idx++]; |
| 6463 | Set.addDecl(Context, D, AS); |
| 6464 | } |
| 6465 | } |
| 6466 | |
| 6467 | CXXBaseSpecifier |
| 6468 | ASTReader::ReadCXXBaseSpecifier(ModuleFile &F, |
| 6469 | const RecordData &Record, unsigned &Idx) { |
| 6470 | bool isVirtual = static_cast<bool>(Record[Idx++]); |
| 6471 | bool isBaseOfClass = static_cast<bool>(Record[Idx++]); |
| 6472 | AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]); |
| 6473 | bool inheritConstructors = static_cast<bool>(Record[Idx++]); |
| 6474 | TypeSourceInfo *TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6475 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6476 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Idx); |
| 6477 | CXXBaseSpecifier Result(Range, isVirtual, isBaseOfClass, AS, TInfo, |
| 6478 | EllipsisLoc); |
| 6479 | Result.setInheritConstructors(inheritConstructors); |
| 6480 | return Result; |
| 6481 | } |
| 6482 | |
| 6483 | std::pair<CXXCtorInitializer **, unsigned> |
| 6484 | ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record, |
| 6485 | unsigned &Idx) { |
| 6486 | CXXCtorInitializer **CtorInitializers = 0; |
| 6487 | unsigned NumInitializers = Record[Idx++]; |
| 6488 | if (NumInitializers) { |
| 6489 | CtorInitializers |
| 6490 | = new (Context) CXXCtorInitializer*[NumInitializers]; |
| 6491 | for (unsigned i=0; i != NumInitializers; ++i) { |
| 6492 | TypeSourceInfo *TInfo = 0; |
| 6493 | bool IsBaseVirtual = false; |
| 6494 | FieldDecl *Member = 0; |
| 6495 | IndirectFieldDecl *IndirectMember = 0; |
| 6496 | |
| 6497 | CtorInitializerType Type = (CtorInitializerType)Record[Idx++]; |
| 6498 | switch (Type) { |
| 6499 | case CTOR_INITIALIZER_BASE: |
| 6500 | TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6501 | IsBaseVirtual = Record[Idx++]; |
| 6502 | break; |
| 6503 | |
| 6504 | case CTOR_INITIALIZER_DELEGATING: |
| 6505 | TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6506 | break; |
| 6507 | |
| 6508 | case CTOR_INITIALIZER_MEMBER: |
| 6509 | Member = ReadDeclAs<FieldDecl>(F, Record, Idx); |
| 6510 | break; |
| 6511 | |
| 6512 | case CTOR_INITIALIZER_INDIRECT_MEMBER: |
| 6513 | IndirectMember = ReadDeclAs<IndirectFieldDecl>(F, Record, Idx); |
| 6514 | break; |
| 6515 | } |
| 6516 | |
| 6517 | SourceLocation MemberOrEllipsisLoc = ReadSourceLocation(F, Record, Idx); |
| 6518 | Expr *Init = ReadExpr(F); |
| 6519 | SourceLocation LParenLoc = ReadSourceLocation(F, Record, Idx); |
| 6520 | SourceLocation RParenLoc = ReadSourceLocation(F, Record, Idx); |
| 6521 | bool IsWritten = Record[Idx++]; |
| 6522 | unsigned SourceOrderOrNumArrayIndices; |
| 6523 | SmallVector<VarDecl *, 8> Indices; |
| 6524 | if (IsWritten) { |
| 6525 | SourceOrderOrNumArrayIndices = Record[Idx++]; |
| 6526 | } else { |
| 6527 | SourceOrderOrNumArrayIndices = Record[Idx++]; |
| 6528 | Indices.reserve(SourceOrderOrNumArrayIndices); |
| 6529 | for (unsigned i=0; i != SourceOrderOrNumArrayIndices; ++i) |
| 6530 | Indices.push_back(ReadDeclAs<VarDecl>(F, Record, Idx)); |
| 6531 | } |
| 6532 | |
| 6533 | CXXCtorInitializer *BOMInit; |
| 6534 | if (Type == CTOR_INITIALIZER_BASE) { |
| 6535 | BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, IsBaseVirtual, |
| 6536 | LParenLoc, Init, RParenLoc, |
| 6537 | MemberOrEllipsisLoc); |
| 6538 | } else if (Type == CTOR_INITIALIZER_DELEGATING) { |
| 6539 | BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, LParenLoc, |
| 6540 | Init, RParenLoc); |
| 6541 | } else if (IsWritten) { |
| 6542 | if (Member) |
| 6543 | BOMInit = new (Context) CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc, |
| 6544 | LParenLoc, Init, RParenLoc); |
| 6545 | else |
| 6546 | BOMInit = new (Context) CXXCtorInitializer(Context, IndirectMember, |
| 6547 | MemberOrEllipsisLoc, LParenLoc, |
| 6548 | Init, RParenLoc); |
| 6549 | } else { |
| 6550 | BOMInit = CXXCtorInitializer::Create(Context, Member, MemberOrEllipsisLoc, |
| 6551 | LParenLoc, Init, RParenLoc, |
| 6552 | Indices.data(), Indices.size()); |
| 6553 | } |
| 6554 | |
| 6555 | if (IsWritten) |
| 6556 | BOMInit->setSourceOrder(SourceOrderOrNumArrayIndices); |
| 6557 | CtorInitializers[i] = BOMInit; |
| 6558 | } |
| 6559 | } |
| 6560 | |
| 6561 | return std::make_pair(CtorInitializers, NumInitializers); |
| 6562 | } |
| 6563 | |
| 6564 | NestedNameSpecifier * |
| 6565 | ASTReader::ReadNestedNameSpecifier(ModuleFile &F, |
| 6566 | const RecordData &Record, unsigned &Idx) { |
| 6567 | unsigned N = Record[Idx++]; |
| 6568 | NestedNameSpecifier *NNS = 0, *Prev = 0; |
| 6569 | for (unsigned I = 0; I != N; ++I) { |
| 6570 | NestedNameSpecifier::SpecifierKind Kind |
| 6571 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++]; |
| 6572 | switch (Kind) { |
| 6573 | case NestedNameSpecifier::Identifier: { |
| 6574 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx); |
| 6575 | NNS = NestedNameSpecifier::Create(Context, Prev, II); |
| 6576 | break; |
| 6577 | } |
| 6578 | |
| 6579 | case NestedNameSpecifier::Namespace: { |
| 6580 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx); |
| 6581 | NNS = NestedNameSpecifier::Create(Context, Prev, NS); |
| 6582 | break; |
| 6583 | } |
| 6584 | |
| 6585 | case NestedNameSpecifier::NamespaceAlias: { |
| 6586 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx); |
| 6587 | NNS = NestedNameSpecifier::Create(Context, Prev, Alias); |
| 6588 | break; |
| 6589 | } |
| 6590 | |
| 6591 | case NestedNameSpecifier::TypeSpec: |
| 6592 | case NestedNameSpecifier::TypeSpecWithTemplate: { |
| 6593 | const Type *T = readType(F, Record, Idx).getTypePtrOrNull(); |
| 6594 | if (!T) |
| 6595 | return 0; |
| 6596 | |
| 6597 | bool Template = Record[Idx++]; |
| 6598 | NNS = NestedNameSpecifier::Create(Context, Prev, Template, T); |
| 6599 | break; |
| 6600 | } |
| 6601 | |
| 6602 | case NestedNameSpecifier::Global: { |
| 6603 | NNS = NestedNameSpecifier::GlobalSpecifier(Context); |
| 6604 | // No associated value, and there can't be a prefix. |
| 6605 | break; |
| 6606 | } |
| 6607 | } |
| 6608 | Prev = NNS; |
| 6609 | } |
| 6610 | return NNS; |
| 6611 | } |
| 6612 | |
| 6613 | NestedNameSpecifierLoc |
| 6614 | ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record, |
| 6615 | unsigned &Idx) { |
| 6616 | unsigned N = Record[Idx++]; |
| 6617 | NestedNameSpecifierLocBuilder Builder; |
| 6618 | for (unsigned I = 0; I != N; ++I) { |
| 6619 | NestedNameSpecifier::SpecifierKind Kind |
| 6620 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++]; |
| 6621 | switch (Kind) { |
| 6622 | case NestedNameSpecifier::Identifier: { |
| 6623 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx); |
| 6624 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6625 | Builder.Extend(Context, II, Range.getBegin(), Range.getEnd()); |
| 6626 | break; |
| 6627 | } |
| 6628 | |
| 6629 | case NestedNameSpecifier::Namespace: { |
| 6630 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx); |
| 6631 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6632 | Builder.Extend(Context, NS, Range.getBegin(), Range.getEnd()); |
| 6633 | break; |
| 6634 | } |
| 6635 | |
| 6636 | case NestedNameSpecifier::NamespaceAlias: { |
| 6637 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx); |
| 6638 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6639 | Builder.Extend(Context, Alias, Range.getBegin(), Range.getEnd()); |
| 6640 | break; |
| 6641 | } |
| 6642 | |
| 6643 | case NestedNameSpecifier::TypeSpec: |
| 6644 | case NestedNameSpecifier::TypeSpecWithTemplate: { |
| 6645 | bool Template = Record[Idx++]; |
| 6646 | TypeSourceInfo *T = GetTypeSourceInfo(F, Record, Idx); |
| 6647 | if (!T) |
| 6648 | return NestedNameSpecifierLoc(); |
| 6649 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx); |
| 6650 | |
| 6651 | // FIXME: 'template' keyword location not saved anywhere, so we fake it. |
| 6652 | Builder.Extend(Context, |
| 6653 | Template? T->getTypeLoc().getBeginLoc() : SourceLocation(), |
| 6654 | T->getTypeLoc(), ColonColonLoc); |
| 6655 | break; |
| 6656 | } |
| 6657 | |
| 6658 | case NestedNameSpecifier::Global: { |
| 6659 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx); |
| 6660 | Builder.MakeGlobal(Context, ColonColonLoc); |
| 6661 | break; |
| 6662 | } |
| 6663 | } |
| 6664 | } |
| 6665 | |
| 6666 | return Builder.getWithLocInContext(Context); |
| 6667 | } |
| 6668 | |
| 6669 | SourceRange |
| 6670 | ASTReader::ReadSourceRange(ModuleFile &F, const RecordData &Record, |
| 6671 | unsigned &Idx) { |
| 6672 | SourceLocation beg = ReadSourceLocation(F, Record, Idx); |
| 6673 | SourceLocation end = ReadSourceLocation(F, Record, Idx); |
| 6674 | return SourceRange(beg, end); |
| 6675 | } |
| 6676 | |
| 6677 | /// \brief Read an integral value |
| 6678 | llvm::APInt ASTReader::ReadAPInt(const RecordData &Record, unsigned &Idx) { |
| 6679 | unsigned BitWidth = Record[Idx++]; |
| 6680 | unsigned NumWords = llvm::APInt::getNumWords(BitWidth); |
| 6681 | llvm::APInt Result(BitWidth, NumWords, &Record[Idx]); |
| 6682 | Idx += NumWords; |
| 6683 | return Result; |
| 6684 | } |
| 6685 | |
| 6686 | /// \brief Read a signed integral value |
| 6687 | llvm::APSInt ASTReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) { |
| 6688 | bool isUnsigned = Record[Idx++]; |
| 6689 | return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned); |
| 6690 | } |
| 6691 | |
| 6692 | /// \brief Read a floating-point value |
Tim Northover | 9ec55f2 | 2013-01-22 09:46:51 +0000 | [diff] [blame] | 6693 | llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, |
| 6694 | const llvm::fltSemantics &Sem, |
| 6695 | unsigned &Idx) { |
| 6696 | return llvm::APFloat(Sem, ReadAPInt(Record, Idx)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6697 | } |
| 6698 | |
| 6699 | // \brief Read a string |
| 6700 | std::string ASTReader::ReadString(const RecordData &Record, unsigned &Idx) { |
| 6701 | unsigned Len = Record[Idx++]; |
| 6702 | std::string Result(Record.data() + Idx, Record.data() + Idx + Len); |
| 6703 | Idx += Len; |
| 6704 | return Result; |
| 6705 | } |
| 6706 | |
| 6707 | VersionTuple ASTReader::ReadVersionTuple(const RecordData &Record, |
| 6708 | unsigned &Idx) { |
| 6709 | unsigned Major = Record[Idx++]; |
| 6710 | unsigned Minor = Record[Idx++]; |
| 6711 | unsigned Subminor = Record[Idx++]; |
| 6712 | if (Minor == 0) |
| 6713 | return VersionTuple(Major); |
| 6714 | if (Subminor == 0) |
| 6715 | return VersionTuple(Major, Minor - 1); |
| 6716 | return VersionTuple(Major, Minor - 1, Subminor - 1); |
| 6717 | } |
| 6718 | |
| 6719 | CXXTemporary *ASTReader::ReadCXXTemporary(ModuleFile &F, |
| 6720 | const RecordData &Record, |
| 6721 | unsigned &Idx) { |
| 6722 | CXXDestructorDecl *Decl = ReadDeclAs<CXXDestructorDecl>(F, Record, Idx); |
| 6723 | return CXXTemporary::Create(Context, Decl); |
| 6724 | } |
| 6725 | |
| 6726 | DiagnosticBuilder ASTReader::Diag(unsigned DiagID) { |
| 6727 | return Diag(SourceLocation(), DiagID); |
| 6728 | } |
| 6729 | |
| 6730 | DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) { |
| 6731 | return Diags.Report(Loc, DiagID); |
| 6732 | } |
| 6733 | |
| 6734 | /// \brief Retrieve the identifier table associated with the |
| 6735 | /// preprocessor. |
| 6736 | IdentifierTable &ASTReader::getIdentifierTable() { |
| 6737 | return PP.getIdentifierTable(); |
| 6738 | } |
| 6739 | |
| 6740 | /// \brief Record that the given ID maps to the given switch-case |
| 6741 | /// statement. |
| 6742 | void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) { |
| 6743 | assert((*CurrSwitchCaseStmts)[ID] == 0 && |
| 6744 | "Already have a SwitchCase with this ID"); |
| 6745 | (*CurrSwitchCaseStmts)[ID] = SC; |
| 6746 | } |
| 6747 | |
| 6748 | /// \brief Retrieve the switch-case statement with the given ID. |
| 6749 | SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) { |
| 6750 | assert((*CurrSwitchCaseStmts)[ID] != 0 && "No SwitchCase with this ID"); |
| 6751 | return (*CurrSwitchCaseStmts)[ID]; |
| 6752 | } |
| 6753 | |
| 6754 | void ASTReader::ClearSwitchCaseIDs() { |
| 6755 | CurrSwitchCaseStmts->clear(); |
| 6756 | } |
| 6757 | |
| 6758 | void ASTReader::ReadComments() { |
| 6759 | std::vector<RawComment *> Comments; |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 6760 | for (SmallVectorImpl<std::pair<BitstreamCursor, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6761 | serialization::ModuleFile *> >::iterator |
| 6762 | I = CommentsCursors.begin(), |
| 6763 | E = CommentsCursors.end(); |
| 6764 | I != E; ++I) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 6765 | BitstreamCursor &Cursor = I->first; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6766 | serialization::ModuleFile &F = *I->second; |
| 6767 | SavedStreamPosition SavedPosition(Cursor); |
| 6768 | |
| 6769 | RecordData Record; |
| 6770 | while (true) { |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 6771 | llvm::BitstreamEntry Entry = |
| 6772 | Cursor.advanceSkippingSubblocks(BitstreamCursor::AF_DontPopBlockAtEnd); |
| 6773 | |
| 6774 | switch (Entry.Kind) { |
| 6775 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. |
| 6776 | case llvm::BitstreamEntry::Error: |
| 6777 | Error("malformed block record in AST file"); |
| 6778 | return; |
| 6779 | case llvm::BitstreamEntry::EndBlock: |
| 6780 | goto NextCursor; |
| 6781 | case llvm::BitstreamEntry::Record: |
| 6782 | // The interesting case. |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6783 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6784 | } |
| 6785 | |
| 6786 | // Read a record. |
| 6787 | Record.clear(); |
Chris Lattner | b3ce357 | 2013-01-20 02:38:54 +0000 | [diff] [blame] | 6788 | switch ((CommentRecordTypes)Cursor.readRecord(Entry.ID, Record)) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6789 | case COMMENTS_RAW_COMMENT: { |
| 6790 | unsigned Idx = 0; |
| 6791 | SourceRange SR = ReadSourceRange(F, Record, Idx); |
| 6792 | RawComment::CommentKind Kind = |
| 6793 | (RawComment::CommentKind) Record[Idx++]; |
| 6794 | bool IsTrailingComment = Record[Idx++]; |
| 6795 | bool IsAlmostTrailingComment = Record[Idx++]; |
| 6796 | Comments.push_back(new (Context) RawComment(SR, Kind, |
| 6797 | IsTrailingComment, |
| 6798 | IsAlmostTrailingComment)); |
| 6799 | break; |
| 6800 | } |
| 6801 | } |
| 6802 | } |
Chris Lattner | 8f9a1eb | 2013-01-20 00:56:42 +0000 | [diff] [blame] | 6803 | NextCursor:; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6804 | } |
| 6805 | Context.Comments.addCommentsToFront(Comments); |
| 6806 | } |
| 6807 | |
| 6808 | void ASTReader::finishPendingActions() { |
| 6809 | while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty() || |
| 6810 | !PendingMacroIDs.empty()) { |
| 6811 | // If any identifiers with corresponding top-level declarations have |
| 6812 | // been loaded, load those declarations now. |
| 6813 | while (!PendingIdentifierInfos.empty()) { |
| 6814 | SetGloballyVisibleDecls(PendingIdentifierInfos.front().II, |
| 6815 | PendingIdentifierInfos.front().DeclIDs, true); |
| 6816 | PendingIdentifierInfos.pop_front(); |
| 6817 | } |
| 6818 | |
| 6819 | // Load pending declaration chains. |
| 6820 | for (unsigned I = 0; I != PendingDeclChains.size(); ++I) { |
| 6821 | loadPendingDeclChain(PendingDeclChains[I]); |
| 6822 | PendingDeclChainsKnown.erase(PendingDeclChains[I]); |
| 6823 | } |
| 6824 | PendingDeclChains.clear(); |
| 6825 | |
| 6826 | // Load any pending macro definitions. |
| 6827 | for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) { |
Argyrios Kyrtzidis | dc1088f | 2013-01-19 03:14:56 +0000 | [diff] [blame] | 6828 | // FIXME: std::move here |
| 6829 | SmallVector<MacroID, 2> GlobalIDs = PendingMacroIDs.begin()[I].second; |
| 6830 | MacroInfo *Hint = 0; |
| 6831 | for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs; |
| 6832 | ++IDIdx) { |
| 6833 | Hint = getMacro(GlobalIDs[IDIdx], Hint); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6834 | } |
| 6835 | } |
| 6836 | PendingMacroIDs.clear(); |
| 6837 | } |
| 6838 | |
| 6839 | // If we deserialized any C++ or Objective-C class definitions, any |
| 6840 | // Objective-C protocol definitions, or any redeclarable templates, make sure |
| 6841 | // that all redeclarations point to the definitions. Note that this can only |
| 6842 | // happen now, after the redeclaration chains have been fully wired. |
| 6843 | for (llvm::SmallPtrSet<Decl *, 4>::iterator D = PendingDefinitions.begin(), |
| 6844 | DEnd = PendingDefinitions.end(); |
| 6845 | D != DEnd; ++D) { |
| 6846 | if (TagDecl *TD = dyn_cast<TagDecl>(*D)) { |
| 6847 | if (const TagType *TagT = dyn_cast<TagType>(TD->TypeForDecl)) { |
| 6848 | // Make sure that the TagType points at the definition. |
| 6849 | const_cast<TagType*>(TagT)->decl = TD; |
| 6850 | } |
| 6851 | |
| 6852 | if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(*D)) { |
| 6853 | for (CXXRecordDecl::redecl_iterator R = RD->redecls_begin(), |
| 6854 | REnd = RD->redecls_end(); |
| 6855 | R != REnd; ++R) |
| 6856 | cast<CXXRecordDecl>(*R)->DefinitionData = RD->DefinitionData; |
| 6857 | |
| 6858 | } |
| 6859 | |
| 6860 | continue; |
| 6861 | } |
| 6862 | |
| 6863 | if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(*D)) { |
| 6864 | // Make sure that the ObjCInterfaceType points at the definition. |
| 6865 | const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl)) |
| 6866 | ->Decl = ID; |
| 6867 | |
| 6868 | for (ObjCInterfaceDecl::redecl_iterator R = ID->redecls_begin(), |
| 6869 | REnd = ID->redecls_end(); |
| 6870 | R != REnd; ++R) |
| 6871 | R->Data = ID->Data; |
| 6872 | |
| 6873 | continue; |
| 6874 | } |
| 6875 | |
| 6876 | if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(*D)) { |
| 6877 | for (ObjCProtocolDecl::redecl_iterator R = PD->redecls_begin(), |
| 6878 | REnd = PD->redecls_end(); |
| 6879 | R != REnd; ++R) |
| 6880 | R->Data = PD->Data; |
| 6881 | |
| 6882 | continue; |
| 6883 | } |
| 6884 | |
| 6885 | RedeclarableTemplateDecl *RTD |
| 6886 | = cast<RedeclarableTemplateDecl>(*D)->getCanonicalDecl(); |
| 6887 | for (RedeclarableTemplateDecl::redecl_iterator R = RTD->redecls_begin(), |
| 6888 | REnd = RTD->redecls_end(); |
| 6889 | R != REnd; ++R) |
| 6890 | R->Common = RTD->Common; |
| 6891 | } |
| 6892 | PendingDefinitions.clear(); |
| 6893 | |
| 6894 | // Load the bodies of any functions or methods we've encountered. We do |
| 6895 | // this now (delayed) so that we can be sure that the declaration chains |
| 6896 | // have been fully wired up. |
| 6897 | for (PendingBodiesMap::iterator PB = PendingBodies.begin(), |
| 6898 | PBEnd = PendingBodies.end(); |
| 6899 | PB != PBEnd; ++PB) { |
| 6900 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) { |
| 6901 | // FIXME: Check for =delete/=default? |
| 6902 | // FIXME: Complain about ODR violations here? |
| 6903 | if (!getContext().getLangOpts().Modules || !FD->hasBody()) |
| 6904 | FD->setLazyBody(PB->second); |
| 6905 | continue; |
| 6906 | } |
| 6907 | |
| 6908 | ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first); |
| 6909 | if (!getContext().getLangOpts().Modules || !MD->hasBody()) |
| 6910 | MD->setLazyBody(PB->second); |
| 6911 | } |
| 6912 | PendingBodies.clear(); |
| 6913 | } |
| 6914 | |
| 6915 | void ASTReader::FinishedDeserializing() { |
| 6916 | assert(NumCurrentElementsDeserializing && |
| 6917 | "FinishedDeserializing not paired with StartedDeserializing"); |
| 6918 | if (NumCurrentElementsDeserializing == 1) { |
| 6919 | // We decrease NumCurrentElementsDeserializing only after pending actions |
| 6920 | // are finished, to avoid recursively re-calling finishPendingActions(). |
| 6921 | finishPendingActions(); |
| 6922 | } |
| 6923 | --NumCurrentElementsDeserializing; |
| 6924 | |
| 6925 | if (NumCurrentElementsDeserializing == 0 && |
| 6926 | Consumer && !PassingDeclsToConsumer) { |
| 6927 | // Guard variable to avoid recursively redoing the process of passing |
| 6928 | // decls to consumer. |
| 6929 | SaveAndRestore<bool> GuardPassingDeclsToConsumer(PassingDeclsToConsumer, |
| 6930 | true); |
| 6931 | |
| 6932 | while (!InterestingDecls.empty()) { |
| 6933 | // We are not in recursive loading, so it's safe to pass the "interesting" |
| 6934 | // decls to the consumer. |
| 6935 | Decl *D = InterestingDecls.front(); |
| 6936 | InterestingDecls.pop_front(); |
| 6937 | PassInterestingDeclToConsumer(D); |
| 6938 | } |
| 6939 | } |
| 6940 | } |
| 6941 | |
| 6942 | ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context, |
| 6943 | StringRef isysroot, bool DisableValidation, |
| 6944 | bool AllowASTWithCompilerErrors) |
| 6945 | : Listener(new PCHValidator(PP, *this)), DeserializationListener(0), |
| 6946 | SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()), |
| 6947 | Diags(PP.getDiagnostics()), SemaObj(0), PP(PP), Context(Context), |
| 6948 | Consumer(0), ModuleMgr(PP.getFileManager()), |
| 6949 | isysroot(isysroot), DisableValidation(DisableValidation), |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 6950 | AllowASTWithCompilerErrors(AllowASTWithCompilerErrors), |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6951 | CurrentGeneration(0), CurrSwitchCaseStmts(&SwitchCaseStmts), |
| 6952 | NumSLocEntriesRead(0), TotalNumSLocEntries(0), |
Douglas Gregor | e169807 | 2013-01-25 00:38:33 +0000 | [diff] [blame^] | 6953 | NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0), |
| 6954 | TotalNumMacros(0), NumIdentifierLookups(0), NumIdentifierLookupHits(0), |
| 6955 | NumSelectorsRead(0), NumMethodPoolEntriesRead(0), |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6956 | NumMethodPoolMisses(0), TotalNumMethodPoolEntries(0), |
| 6957 | NumLexicalDeclContextsRead(0), TotalLexicalDeclContexts(0), |
| 6958 | NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0), |
| 6959 | TotalModulesSizeInBits(0), NumCurrentElementsDeserializing(0), |
| 6960 | PassingDeclsToConsumer(false), |
| 6961 | NumCXXBaseSpecifiersLoaded(0) |
| 6962 | { |
| 6963 | SourceMgr.setExternalSLocEntrySource(this); |
| 6964 | } |
| 6965 | |
| 6966 | ASTReader::~ASTReader() { |
| 6967 | for (DeclContextVisibleUpdatesPending::iterator |
| 6968 | I = PendingVisibleUpdates.begin(), |
| 6969 | E = PendingVisibleUpdates.end(); |
| 6970 | I != E; ++I) { |
| 6971 | for (DeclContextVisibleUpdates::iterator J = I->second.begin(), |
| 6972 | F = I->second.end(); |
| 6973 | J != F; ++J) |
| 6974 | delete J->first; |
| 6975 | } |
| 6976 | } |