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> |
| 54 | #include <cstdio> |
| 55 | #include <iterator> |
| 56 | |
| 57 | using namespace clang; |
| 58 | using namespace clang::serialization; |
| 59 | using namespace clang::serialization::reader; |
| 60 | |
| 61 | //===----------------------------------------------------------------------===// |
| 62 | // PCH validator implementation |
| 63 | //===----------------------------------------------------------------------===// |
| 64 | |
| 65 | ASTReaderListener::~ASTReaderListener() {} |
| 66 | |
| 67 | /// \brief Compare the given set of language options against an existing set of |
| 68 | /// language options. |
| 69 | /// |
| 70 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine. |
| 71 | /// |
| 72 | /// \returns true if the languagae options mis-match, false otherwise. |
| 73 | static bool checkLanguageOptions(const LangOptions &LangOpts, |
| 74 | const LangOptions &ExistingLangOpts, |
| 75 | DiagnosticsEngine *Diags) { |
| 76 | #define LANGOPT(Name, Bits, Default, Description) \ |
| 77 | if (ExistingLangOpts.Name != LangOpts.Name) { \ |
| 78 | if (Diags) \ |
| 79 | Diags->Report(diag::err_pch_langopt_mismatch) \ |
| 80 | << Description << LangOpts.Name << ExistingLangOpts.Name; \ |
| 81 | return true; \ |
| 82 | } |
| 83 | |
| 84 | #define VALUE_LANGOPT(Name, Bits, Default, Description) \ |
| 85 | if (ExistingLangOpts.Name != LangOpts.Name) { \ |
| 86 | if (Diags) \ |
| 87 | Diags->Report(diag::err_pch_langopt_value_mismatch) \ |
| 88 | << Description; \ |
| 89 | return true; \ |
| 90 | } |
| 91 | |
| 92 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
| 93 | if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \ |
| 94 | if (Diags) \ |
| 95 | Diags->Report(diag::err_pch_langopt_value_mismatch) \ |
| 96 | << Description; \ |
| 97 | return true; \ |
| 98 | } |
| 99 | |
| 100 | #define BENIGN_LANGOPT(Name, Bits, Default, Description) |
| 101 | #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) |
| 102 | #include "clang/Basic/LangOptions.def" |
| 103 | |
| 104 | if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) { |
| 105 | if (Diags) |
| 106 | Diags->Report(diag::err_pch_langopt_value_mismatch) |
| 107 | << "target Objective-C runtime"; |
| 108 | return true; |
| 109 | } |
| 110 | |
| 111 | return false; |
| 112 | } |
| 113 | |
| 114 | /// \brief Compare the given set of target options against an existing set of |
| 115 | /// target options. |
| 116 | /// |
| 117 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine. |
| 118 | /// |
| 119 | /// \returns true if the target options mis-match, false otherwise. |
| 120 | static bool checkTargetOptions(const TargetOptions &TargetOpts, |
| 121 | const TargetOptions &ExistingTargetOpts, |
| 122 | DiagnosticsEngine *Diags) { |
| 123 | #define CHECK_TARGET_OPT(Field, Name) \ |
| 124 | if (TargetOpts.Field != ExistingTargetOpts.Field) { \ |
| 125 | if (Diags) \ |
| 126 | Diags->Report(diag::err_pch_targetopt_mismatch) \ |
| 127 | << Name << TargetOpts.Field << ExistingTargetOpts.Field; \ |
| 128 | return true; \ |
| 129 | } |
| 130 | |
| 131 | CHECK_TARGET_OPT(Triple, "target"); |
| 132 | CHECK_TARGET_OPT(CPU, "target CPU"); |
| 133 | CHECK_TARGET_OPT(ABI, "target ABI"); |
| 134 | CHECK_TARGET_OPT(CXXABI, "target C++ ABI"); |
| 135 | CHECK_TARGET_OPT(LinkerVersion, "target linker version"); |
| 136 | #undef CHECK_TARGET_OPT |
| 137 | |
| 138 | // Compare feature sets. |
| 139 | SmallVector<StringRef, 4> ExistingFeatures( |
| 140 | ExistingTargetOpts.FeaturesAsWritten.begin(), |
| 141 | ExistingTargetOpts.FeaturesAsWritten.end()); |
| 142 | SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(), |
| 143 | TargetOpts.FeaturesAsWritten.end()); |
| 144 | std::sort(ExistingFeatures.begin(), ExistingFeatures.end()); |
| 145 | std::sort(ReadFeatures.begin(), ReadFeatures.end()); |
| 146 | |
| 147 | unsigned ExistingIdx = 0, ExistingN = ExistingFeatures.size(); |
| 148 | unsigned ReadIdx = 0, ReadN = ReadFeatures.size(); |
| 149 | while (ExistingIdx < ExistingN && ReadIdx < ReadN) { |
| 150 | if (ExistingFeatures[ExistingIdx] == ReadFeatures[ReadIdx]) { |
| 151 | ++ExistingIdx; |
| 152 | ++ReadIdx; |
| 153 | continue; |
| 154 | } |
| 155 | |
| 156 | if (ReadFeatures[ReadIdx] < ExistingFeatures[ExistingIdx]) { |
| 157 | if (Diags) |
| 158 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 159 | << false << ReadFeatures[ReadIdx]; |
| 160 | return true; |
| 161 | } |
| 162 | |
| 163 | if (Diags) |
| 164 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 165 | << true << ExistingFeatures[ExistingIdx]; |
| 166 | return true; |
| 167 | } |
| 168 | |
| 169 | if (ExistingIdx < ExistingN) { |
| 170 | if (Diags) |
| 171 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 172 | << true << ExistingFeatures[ExistingIdx]; |
| 173 | return true; |
| 174 | } |
| 175 | |
| 176 | if (ReadIdx < ReadN) { |
| 177 | if (Diags) |
| 178 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) |
| 179 | << false << ReadFeatures[ReadIdx]; |
| 180 | return true; |
| 181 | } |
| 182 | |
| 183 | return false; |
| 184 | } |
| 185 | |
| 186 | bool |
| 187 | PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts, |
| 188 | bool Complain) { |
| 189 | const LangOptions &ExistingLangOpts = PP.getLangOpts(); |
| 190 | return checkLanguageOptions(LangOpts, ExistingLangOpts, |
| 191 | Complain? &Reader.Diags : 0); |
| 192 | } |
| 193 | |
| 194 | bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts, |
| 195 | bool Complain) { |
| 196 | const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts(); |
| 197 | return checkTargetOptions(TargetOpts, ExistingTargetOpts, |
| 198 | Complain? &Reader.Diags : 0); |
| 199 | } |
| 200 | |
| 201 | namespace { |
| 202 | typedef llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> > |
| 203 | MacroDefinitionsMap; |
| 204 | } |
| 205 | |
| 206 | /// \brief Collect the macro definitions provided by the given preprocessor |
| 207 | /// options. |
| 208 | static void collectMacroDefinitions(const PreprocessorOptions &PPOpts, |
| 209 | MacroDefinitionsMap &Macros, |
| 210 | SmallVectorImpl<StringRef> *MacroNames = 0){ |
| 211 | for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) { |
| 212 | StringRef Macro = PPOpts.Macros[I].first; |
| 213 | bool IsUndef = PPOpts.Macros[I].second; |
| 214 | |
| 215 | std::pair<StringRef, StringRef> MacroPair = Macro.split('='); |
| 216 | StringRef MacroName = MacroPair.first; |
| 217 | StringRef MacroBody = MacroPair.second; |
| 218 | |
| 219 | // For an #undef'd macro, we only care about the name. |
| 220 | if (IsUndef) { |
| 221 | if (MacroNames && !Macros.count(MacroName)) |
| 222 | MacroNames->push_back(MacroName); |
| 223 | |
| 224 | Macros[MacroName] = std::make_pair("", true); |
| 225 | continue; |
| 226 | } |
| 227 | |
| 228 | // For a #define'd macro, figure out the actual definition. |
| 229 | if (MacroName.size() == Macro.size()) |
| 230 | MacroBody = "1"; |
| 231 | else { |
| 232 | // Note: GCC drops anything following an end-of-line character. |
| 233 | StringRef::size_type End = MacroBody.find_first_of("\n\r"); |
| 234 | MacroBody = MacroBody.substr(0, End); |
| 235 | } |
| 236 | |
| 237 | if (MacroNames && !Macros.count(MacroName)) |
| 238 | MacroNames->push_back(MacroName); |
| 239 | Macros[MacroName] = std::make_pair(MacroBody, false); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | /// \brief Check the preprocessor options deserialized from the control block |
| 244 | /// against the preprocessor options in an existing preprocessor. |
| 245 | /// |
| 246 | /// \param Diags If non-null, produce diagnostics for any mismatches incurred. |
| 247 | static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts, |
| 248 | const PreprocessorOptions &ExistingPPOpts, |
| 249 | DiagnosticsEngine *Diags, |
| 250 | FileManager &FileMgr, |
| 251 | std::string &SuggestedPredefines) { |
| 252 | // Check macro definitions. |
| 253 | MacroDefinitionsMap ASTFileMacros; |
| 254 | collectMacroDefinitions(PPOpts, ASTFileMacros); |
| 255 | MacroDefinitionsMap ExistingMacros; |
| 256 | SmallVector<StringRef, 4> ExistingMacroNames; |
| 257 | collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames); |
| 258 | |
| 259 | for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) { |
| 260 | // Dig out the macro definition in the existing preprocessor options. |
| 261 | StringRef MacroName = ExistingMacroNames[I]; |
| 262 | std::pair<StringRef, bool> Existing = ExistingMacros[MacroName]; |
| 263 | |
| 264 | // Check whether we know anything about this macro name or not. |
| 265 | llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >::iterator Known |
| 266 | = ASTFileMacros.find(MacroName); |
| 267 | if (Known == ASTFileMacros.end()) { |
| 268 | // FIXME: Check whether this identifier was referenced anywhere in the |
| 269 | // AST file. If so, we should reject the AST file. Unfortunately, this |
| 270 | // information isn't in the control block. What shall we do about it? |
| 271 | |
| 272 | if (Existing.second) { |
| 273 | SuggestedPredefines += "#undef "; |
| 274 | SuggestedPredefines += MacroName.str(); |
| 275 | SuggestedPredefines += '\n'; |
| 276 | } else { |
| 277 | SuggestedPredefines += "#define "; |
| 278 | SuggestedPredefines += MacroName.str(); |
| 279 | SuggestedPredefines += ' '; |
| 280 | SuggestedPredefines += Existing.first.str(); |
| 281 | SuggestedPredefines += '\n'; |
| 282 | } |
| 283 | continue; |
| 284 | } |
| 285 | |
| 286 | // If the macro was defined in one but undef'd in the other, we have a |
| 287 | // conflict. |
| 288 | if (Existing.second != Known->second.second) { |
| 289 | if (Diags) { |
| 290 | Diags->Report(diag::err_pch_macro_def_undef) |
| 291 | << MacroName << Known->second.second; |
| 292 | } |
| 293 | return true; |
| 294 | } |
| 295 | |
| 296 | // If the macro was #undef'd in both, or if the macro bodies are identical, |
| 297 | // it's fine. |
| 298 | if (Existing.second || Existing.first == Known->second.first) |
| 299 | continue; |
| 300 | |
| 301 | // The macro bodies differ; complain. |
| 302 | if (Diags) { |
| 303 | Diags->Report(diag::err_pch_macro_def_conflict) |
| 304 | << MacroName << Known->second.first << Existing.first; |
| 305 | } |
| 306 | return true; |
| 307 | } |
| 308 | |
| 309 | // Check whether we're using predefines. |
| 310 | if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines) { |
| 311 | if (Diags) { |
| 312 | Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines; |
| 313 | } |
| 314 | return true; |
| 315 | } |
| 316 | |
| 317 | // Compute the #include and #include_macros lines we need. |
| 318 | for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) { |
| 319 | StringRef File = ExistingPPOpts.Includes[I]; |
| 320 | if (File == ExistingPPOpts.ImplicitPCHInclude) |
| 321 | continue; |
| 322 | |
| 323 | if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File) |
| 324 | != PPOpts.Includes.end()) |
| 325 | continue; |
| 326 | |
| 327 | SuggestedPredefines += "#include \""; |
| 328 | SuggestedPredefines += |
| 329 | HeaderSearch::NormalizeDashIncludePath(File, FileMgr); |
| 330 | SuggestedPredefines += "\"\n"; |
| 331 | } |
| 332 | |
| 333 | for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) { |
| 334 | StringRef File = ExistingPPOpts.MacroIncludes[I]; |
| 335 | if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(), |
| 336 | File) |
| 337 | != PPOpts.MacroIncludes.end()) |
| 338 | continue; |
| 339 | |
| 340 | SuggestedPredefines += "#__include_macros \""; |
| 341 | SuggestedPredefines += |
| 342 | HeaderSearch::NormalizeDashIncludePath(File, FileMgr); |
| 343 | SuggestedPredefines += "\"\n##\n"; |
| 344 | } |
| 345 | |
| 346 | return false; |
| 347 | } |
| 348 | |
| 349 | bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, |
| 350 | bool Complain, |
| 351 | std::string &SuggestedPredefines) { |
| 352 | const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts(); |
| 353 | |
| 354 | return checkPreprocessorOptions(PPOpts, ExistingPPOpts, |
| 355 | Complain? &Reader.Diags : 0, |
| 356 | PP.getFileManager(), |
| 357 | SuggestedPredefines); |
| 358 | } |
| 359 | |
| 360 | void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI, |
| 361 | unsigned ID) { |
| 362 | PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID); |
| 363 | ++NumHeaderInfos; |
| 364 | } |
| 365 | |
| 366 | void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) { |
| 367 | PP.setCounterValue(Value); |
| 368 | } |
| 369 | |
| 370 | //===----------------------------------------------------------------------===// |
| 371 | // AST reader implementation |
| 372 | //===----------------------------------------------------------------------===// |
| 373 | |
| 374 | void |
| 375 | ASTReader::setDeserializationListener(ASTDeserializationListener *Listener) { |
| 376 | DeserializationListener = Listener; |
| 377 | } |
| 378 | |
| 379 | |
| 380 | |
| 381 | unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) { |
| 382 | return serialization::ComputeHash(Sel); |
| 383 | } |
| 384 | |
| 385 | |
| 386 | std::pair<unsigned, unsigned> |
| 387 | ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 388 | using namespace clang::io; |
| 389 | unsigned KeyLen = ReadUnalignedLE16(d); |
| 390 | unsigned DataLen = ReadUnalignedLE16(d); |
| 391 | return std::make_pair(KeyLen, DataLen); |
| 392 | } |
| 393 | |
| 394 | ASTSelectorLookupTrait::internal_key_type |
| 395 | ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) { |
| 396 | using namespace clang::io; |
| 397 | SelectorTable &SelTable = Reader.getContext().Selectors; |
| 398 | unsigned N = ReadUnalignedLE16(d); |
| 399 | IdentifierInfo *FirstII |
| 400 | = Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)); |
| 401 | if (N == 0) |
| 402 | return SelTable.getNullarySelector(FirstII); |
| 403 | else if (N == 1) |
| 404 | return SelTable.getUnarySelector(FirstII); |
| 405 | |
| 406 | SmallVector<IdentifierInfo *, 16> Args; |
| 407 | Args.push_back(FirstII); |
| 408 | for (unsigned I = 1; I != N; ++I) |
| 409 | Args.push_back(Reader.getLocalIdentifier(F, ReadUnalignedLE32(d))); |
| 410 | |
| 411 | return SelTable.getSelector(N, Args.data()); |
| 412 | } |
| 413 | |
| 414 | ASTSelectorLookupTrait::data_type |
| 415 | ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d, |
| 416 | unsigned DataLen) { |
| 417 | using namespace clang::io; |
| 418 | |
| 419 | data_type Result; |
| 420 | |
| 421 | Result.ID = Reader.getGlobalSelectorID(F, ReadUnalignedLE32(d)); |
| 422 | unsigned NumInstanceMethods = ReadUnalignedLE16(d); |
| 423 | unsigned NumFactoryMethods = ReadUnalignedLE16(d); |
| 424 | |
| 425 | // Load instance methods |
| 426 | for (unsigned I = 0; I != NumInstanceMethods; ++I) { |
| 427 | if (ObjCMethodDecl *Method |
| 428 | = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d))) |
| 429 | Result.Instance.push_back(Method); |
| 430 | } |
| 431 | |
| 432 | // Load factory methods |
| 433 | for (unsigned I = 0; I != NumFactoryMethods; ++I) { |
| 434 | if (ObjCMethodDecl *Method |
| 435 | = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d))) |
| 436 | Result.Factory.push_back(Method); |
| 437 | } |
| 438 | |
| 439 | return Result; |
| 440 | } |
| 441 | |
| 442 | unsigned ASTIdentifierLookupTrait::ComputeHash(const internal_key_type& a) { |
| 443 | return llvm::HashString(StringRef(a.first, a.second)); |
| 444 | } |
| 445 | |
| 446 | std::pair<unsigned, unsigned> |
| 447 | ASTIdentifierLookupTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 448 | using namespace clang::io; |
| 449 | unsigned DataLen = ReadUnalignedLE16(d); |
| 450 | unsigned KeyLen = ReadUnalignedLE16(d); |
| 451 | return std::make_pair(KeyLen, DataLen); |
| 452 | } |
| 453 | |
| 454 | std::pair<const char*, unsigned> |
| 455 | ASTIdentifierLookupTrait::ReadKey(const unsigned char* d, unsigned n) { |
| 456 | assert(n >= 2 && d[n-1] == '\0'); |
| 457 | return std::make_pair((const char*) d, n-1); |
| 458 | } |
| 459 | |
| 460 | IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k, |
| 461 | const unsigned char* d, |
| 462 | unsigned DataLen) { |
| 463 | using namespace clang::io; |
| 464 | unsigned RawID = ReadUnalignedLE32(d); |
| 465 | bool IsInteresting = RawID & 0x01; |
| 466 | |
| 467 | // Wipe out the "is interesting" bit. |
| 468 | RawID = RawID >> 1; |
| 469 | |
| 470 | IdentID ID = Reader.getGlobalIdentifierID(F, RawID); |
| 471 | if (!IsInteresting) { |
| 472 | // For uninteresting identifiers, just build the IdentifierInfo |
| 473 | // and associate it with the persistent ID. |
| 474 | IdentifierInfo *II = KnownII; |
| 475 | if (!II) { |
| 476 | II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second)); |
| 477 | KnownII = II; |
| 478 | } |
| 479 | Reader.SetIdentifierInfo(ID, II); |
| 480 | II->setIsFromAST(); |
| 481 | Reader.markIdentifierUpToDate(II); |
| 482 | return II; |
| 483 | } |
| 484 | |
| 485 | unsigned ObjCOrBuiltinID = ReadUnalignedLE16(d); |
| 486 | unsigned Bits = ReadUnalignedLE16(d); |
| 487 | bool CPlusPlusOperatorKeyword = Bits & 0x01; |
| 488 | Bits >>= 1; |
| 489 | bool HasRevertedTokenIDToIdentifier = Bits & 0x01; |
| 490 | Bits >>= 1; |
| 491 | bool Poisoned = Bits & 0x01; |
| 492 | Bits >>= 1; |
| 493 | bool ExtensionToken = Bits & 0x01; |
| 494 | Bits >>= 1; |
| 495 | bool hadMacroDefinition = Bits & 0x01; |
| 496 | Bits >>= 1; |
| 497 | |
| 498 | assert(Bits == 0 && "Extra bits in the identifier?"); |
| 499 | DataLen -= 8; |
| 500 | |
| 501 | // Build the IdentifierInfo itself and link the identifier ID with |
| 502 | // the new IdentifierInfo. |
| 503 | IdentifierInfo *II = KnownII; |
| 504 | if (!II) { |
| 505 | II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second)); |
| 506 | KnownII = II; |
| 507 | } |
| 508 | Reader.markIdentifierUpToDate(II); |
| 509 | II->setIsFromAST(); |
| 510 | |
| 511 | // Set or check the various bits in the IdentifierInfo structure. |
| 512 | // Token IDs are read-only. |
| 513 | if (HasRevertedTokenIDToIdentifier) |
| 514 | II->RevertTokenIDToIdentifier(); |
| 515 | II->setObjCOrBuiltinID(ObjCOrBuiltinID); |
| 516 | assert(II->isExtensionToken() == ExtensionToken && |
| 517 | "Incorrect extension token flag"); |
| 518 | (void)ExtensionToken; |
| 519 | if (Poisoned) |
| 520 | II->setIsPoisoned(true); |
| 521 | assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword && |
| 522 | "Incorrect C++ operator keyword flag"); |
| 523 | (void)CPlusPlusOperatorKeyword; |
| 524 | |
| 525 | // If this identifier is a macro, deserialize the macro |
| 526 | // definition. |
| 527 | if (hadMacroDefinition) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 528 | DataLen -= 4; |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 529 | uint32_t LocalID = ReadUnalignedLE32(d); |
| 530 | Reader.addMacroIDForDeserialization(II, Reader.getGlobalMacroID(F,LocalID)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 531 | } |
| 532 | |
| 533 | Reader.SetIdentifierInfo(ID, II); |
| 534 | |
| 535 | // Read all of the declarations visible at global scope with this |
| 536 | // name. |
| 537 | if (DataLen > 0) { |
| 538 | SmallVector<uint32_t, 4> DeclIDs; |
| 539 | for (; DataLen > 0; DataLen -= 4) |
| 540 | DeclIDs.push_back(Reader.getGlobalDeclID(F, ReadUnalignedLE32(d))); |
| 541 | Reader.SetGloballyVisibleDecls(II, DeclIDs); |
| 542 | } |
| 543 | |
| 544 | return II; |
| 545 | } |
| 546 | |
| 547 | unsigned |
| 548 | ASTDeclContextNameLookupTrait::ComputeHash(const DeclNameKey &Key) const { |
| 549 | llvm::FoldingSetNodeID ID; |
| 550 | ID.AddInteger(Key.Kind); |
| 551 | |
| 552 | switch (Key.Kind) { |
| 553 | case DeclarationName::Identifier: |
| 554 | case DeclarationName::CXXLiteralOperatorName: |
| 555 | ID.AddString(((IdentifierInfo*)Key.Data)->getName()); |
| 556 | break; |
| 557 | case DeclarationName::ObjCZeroArgSelector: |
| 558 | case DeclarationName::ObjCOneArgSelector: |
| 559 | case DeclarationName::ObjCMultiArgSelector: |
| 560 | ID.AddInteger(serialization::ComputeHash(Selector(Key.Data))); |
| 561 | break; |
| 562 | case DeclarationName::CXXOperatorName: |
| 563 | ID.AddInteger((OverloadedOperatorKind)Key.Data); |
| 564 | break; |
| 565 | case DeclarationName::CXXConstructorName: |
| 566 | case DeclarationName::CXXDestructorName: |
| 567 | case DeclarationName::CXXConversionFunctionName: |
| 568 | case DeclarationName::CXXUsingDirective: |
| 569 | break; |
| 570 | } |
| 571 | |
| 572 | return ID.ComputeHash(); |
| 573 | } |
| 574 | |
| 575 | ASTDeclContextNameLookupTrait::internal_key_type |
| 576 | ASTDeclContextNameLookupTrait::GetInternalKey( |
| 577 | const external_key_type& Name) const { |
| 578 | DeclNameKey Key; |
| 579 | Key.Kind = Name.getNameKind(); |
| 580 | switch (Name.getNameKind()) { |
| 581 | case DeclarationName::Identifier: |
| 582 | Key.Data = (uint64_t)Name.getAsIdentifierInfo(); |
| 583 | break; |
| 584 | case DeclarationName::ObjCZeroArgSelector: |
| 585 | case DeclarationName::ObjCOneArgSelector: |
| 586 | case DeclarationName::ObjCMultiArgSelector: |
| 587 | Key.Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr(); |
| 588 | break; |
| 589 | case DeclarationName::CXXOperatorName: |
| 590 | Key.Data = Name.getCXXOverloadedOperator(); |
| 591 | break; |
| 592 | case DeclarationName::CXXLiteralOperatorName: |
| 593 | Key.Data = (uint64_t)Name.getCXXLiteralIdentifier(); |
| 594 | break; |
| 595 | case DeclarationName::CXXConstructorName: |
| 596 | case DeclarationName::CXXDestructorName: |
| 597 | case DeclarationName::CXXConversionFunctionName: |
| 598 | case DeclarationName::CXXUsingDirective: |
| 599 | Key.Data = 0; |
| 600 | break; |
| 601 | } |
| 602 | |
| 603 | return Key; |
| 604 | } |
| 605 | |
| 606 | std::pair<unsigned, unsigned> |
| 607 | ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 608 | using namespace clang::io; |
| 609 | unsigned KeyLen = ReadUnalignedLE16(d); |
| 610 | unsigned DataLen = ReadUnalignedLE16(d); |
| 611 | return std::make_pair(KeyLen, DataLen); |
| 612 | } |
| 613 | |
| 614 | ASTDeclContextNameLookupTrait::internal_key_type |
| 615 | ASTDeclContextNameLookupTrait::ReadKey(const unsigned char* d, unsigned) { |
| 616 | using namespace clang::io; |
| 617 | |
| 618 | DeclNameKey Key; |
| 619 | Key.Kind = (DeclarationName::NameKind)*d++; |
| 620 | switch (Key.Kind) { |
| 621 | case DeclarationName::Identifier: |
| 622 | Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)); |
| 623 | break; |
| 624 | case DeclarationName::ObjCZeroArgSelector: |
| 625 | case DeclarationName::ObjCOneArgSelector: |
| 626 | case DeclarationName::ObjCMultiArgSelector: |
| 627 | Key.Data = |
| 628 | (uint64_t)Reader.getLocalSelector(F, ReadUnalignedLE32(d)) |
| 629 | .getAsOpaquePtr(); |
| 630 | break; |
| 631 | case DeclarationName::CXXOperatorName: |
| 632 | Key.Data = *d++; // OverloadedOperatorKind |
| 633 | break; |
| 634 | case DeclarationName::CXXLiteralOperatorName: |
| 635 | Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)); |
| 636 | break; |
| 637 | case DeclarationName::CXXConstructorName: |
| 638 | case DeclarationName::CXXDestructorName: |
| 639 | case DeclarationName::CXXConversionFunctionName: |
| 640 | case DeclarationName::CXXUsingDirective: |
| 641 | Key.Data = 0; |
| 642 | break; |
| 643 | } |
| 644 | |
| 645 | return Key; |
| 646 | } |
| 647 | |
| 648 | ASTDeclContextNameLookupTrait::data_type |
| 649 | ASTDeclContextNameLookupTrait::ReadData(internal_key_type, |
| 650 | const unsigned char* d, |
| 651 | unsigned DataLen) { |
| 652 | using namespace clang::io; |
| 653 | unsigned NumDecls = ReadUnalignedLE16(d); |
Argyrios Kyrtzidis | e8b61cf | 2013-01-11 22:29:49 +0000 | [diff] [blame] | 654 | LE32DeclID *Start = reinterpret_cast<LE32DeclID *>( |
| 655 | const_cast<unsigned char *>(d)); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 656 | return std::make_pair(Start, Start + NumDecls); |
| 657 | } |
| 658 | |
| 659 | bool ASTReader::ReadDeclContextStorage(ModuleFile &M, |
| 660 | llvm::BitstreamCursor &Cursor, |
| 661 | const std::pair<uint64_t, uint64_t> &Offsets, |
| 662 | DeclContextInfo &Info) { |
| 663 | SavedStreamPosition SavedPosition(Cursor); |
| 664 | // First the lexical decls. |
| 665 | if (Offsets.first != 0) { |
| 666 | Cursor.JumpToBit(Offsets.first); |
| 667 | |
| 668 | RecordData Record; |
| 669 | const char *Blob; |
| 670 | unsigned BlobLen; |
| 671 | unsigned Code = Cursor.ReadCode(); |
| 672 | unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen); |
| 673 | if (RecCode != DECL_CONTEXT_LEXICAL) { |
| 674 | Error("Expected lexical block"); |
| 675 | return true; |
| 676 | } |
| 677 | |
| 678 | Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair*>(Blob); |
| 679 | Info.NumLexicalDecls = BlobLen / sizeof(KindDeclIDPair); |
| 680 | } |
| 681 | |
| 682 | // Now the lookup table. |
| 683 | if (Offsets.second != 0) { |
| 684 | Cursor.JumpToBit(Offsets.second); |
| 685 | |
| 686 | RecordData Record; |
| 687 | const char *Blob; |
| 688 | unsigned BlobLen; |
| 689 | unsigned Code = Cursor.ReadCode(); |
| 690 | unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen); |
| 691 | if (RecCode != DECL_CONTEXT_VISIBLE) { |
| 692 | Error("Expected visible lookup table block"); |
| 693 | return true; |
| 694 | } |
| 695 | Info.NameLookupTableData |
| 696 | = ASTDeclContextNameLookupTable::Create( |
| 697 | (const unsigned char *)Blob + Record[0], |
| 698 | (const unsigned char *)Blob, |
| 699 | ASTDeclContextNameLookupTrait(*this, M)); |
| 700 | } |
| 701 | |
| 702 | return false; |
| 703 | } |
| 704 | |
| 705 | void ASTReader::Error(StringRef Msg) { |
| 706 | Error(diag::err_fe_pch_malformed, Msg); |
| 707 | } |
| 708 | |
| 709 | void ASTReader::Error(unsigned DiagID, |
| 710 | StringRef Arg1, StringRef Arg2) { |
| 711 | if (Diags.isDiagnosticInFlight()) |
| 712 | Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2); |
| 713 | else |
| 714 | Diag(DiagID) << Arg1 << Arg2; |
| 715 | } |
| 716 | |
| 717 | //===----------------------------------------------------------------------===// |
| 718 | // Source Manager Deserialization |
| 719 | //===----------------------------------------------------------------------===// |
| 720 | |
| 721 | /// \brief Read the line table in the source manager block. |
| 722 | /// \returns true if there was an error. |
| 723 | bool ASTReader::ParseLineTable(ModuleFile &F, |
| 724 | SmallVectorImpl<uint64_t> &Record) { |
| 725 | unsigned Idx = 0; |
| 726 | LineTableInfo &LineTable = SourceMgr.getLineTable(); |
| 727 | |
| 728 | // Parse the file names |
| 729 | std::map<int, int> FileIDs; |
| 730 | for (int I = 0, N = Record[Idx++]; I != N; ++I) { |
| 731 | // Extract the file name |
| 732 | unsigned FilenameLen = Record[Idx++]; |
| 733 | std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen); |
| 734 | Idx += FilenameLen; |
| 735 | MaybeAddSystemRootToFilename(F, Filename); |
| 736 | FileIDs[I] = LineTable.getLineTableFilenameID(Filename); |
| 737 | } |
| 738 | |
| 739 | // Parse the line entries |
| 740 | std::vector<LineEntry> Entries; |
| 741 | while (Idx < Record.size()) { |
| 742 | int FID = Record[Idx++]; |
| 743 | assert(FID >= 0 && "Serialized line entries for non-local file."); |
| 744 | // Remap FileID from 1-based old view. |
| 745 | FID += F.SLocEntryBaseID - 1; |
| 746 | |
| 747 | // Extract the line entries |
| 748 | unsigned NumEntries = Record[Idx++]; |
| 749 | assert(NumEntries && "Numentries is 00000"); |
| 750 | Entries.clear(); |
| 751 | Entries.reserve(NumEntries); |
| 752 | for (unsigned I = 0; I != NumEntries; ++I) { |
| 753 | unsigned FileOffset = Record[Idx++]; |
| 754 | unsigned LineNo = Record[Idx++]; |
| 755 | int FilenameID = FileIDs[Record[Idx++]]; |
| 756 | SrcMgr::CharacteristicKind FileKind |
| 757 | = (SrcMgr::CharacteristicKind)Record[Idx++]; |
| 758 | unsigned IncludeOffset = Record[Idx++]; |
| 759 | Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID, |
| 760 | FileKind, IncludeOffset)); |
| 761 | } |
| 762 | LineTable.AddEntry(FileID::get(FID), Entries); |
| 763 | } |
| 764 | |
| 765 | return false; |
| 766 | } |
| 767 | |
| 768 | /// \brief Read a source manager block |
| 769 | bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) { |
| 770 | using namespace SrcMgr; |
| 771 | |
| 772 | llvm::BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor; |
| 773 | |
| 774 | // Set the source-location entry cursor to the current position in |
| 775 | // the stream. This cursor will be used to read the contents of the |
| 776 | // source manager block initially, and then lazily read |
| 777 | // source-location entries as needed. |
| 778 | SLocEntryCursor = F.Stream; |
| 779 | |
| 780 | // The stream itself is going to skip over the source manager block. |
| 781 | if (F.Stream.SkipBlock()) { |
| 782 | Error("malformed block record in AST file"); |
| 783 | return true; |
| 784 | } |
| 785 | |
| 786 | // Enter the source manager block. |
| 787 | if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) { |
| 788 | Error("malformed source manager block record in AST file"); |
| 789 | return true; |
| 790 | } |
| 791 | |
| 792 | RecordData Record; |
| 793 | while (true) { |
| 794 | unsigned Code = SLocEntryCursor.ReadCode(); |
| 795 | if (Code == llvm::bitc::END_BLOCK) { |
| 796 | if (SLocEntryCursor.ReadBlockEnd()) { |
| 797 | Error("error at end of Source Manager block in AST file"); |
| 798 | return true; |
| 799 | } |
| 800 | return false; |
| 801 | } |
| 802 | |
| 803 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 804 | // No known subblocks, always skip them. |
| 805 | SLocEntryCursor.ReadSubBlockID(); |
| 806 | if (SLocEntryCursor.SkipBlock()) { |
| 807 | Error("malformed block record in AST file"); |
| 808 | return true; |
| 809 | } |
| 810 | continue; |
| 811 | } |
| 812 | |
| 813 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 814 | SLocEntryCursor.ReadAbbrevRecord(); |
| 815 | continue; |
| 816 | } |
| 817 | |
| 818 | // Read a record. |
| 819 | const char *BlobStart; |
| 820 | unsigned BlobLen; |
| 821 | Record.clear(); |
| 822 | switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) { |
| 823 | default: // Default behavior: ignore. |
| 824 | break; |
| 825 | |
| 826 | case SM_SLOC_FILE_ENTRY: |
| 827 | case SM_SLOC_BUFFER_ENTRY: |
| 828 | case SM_SLOC_EXPANSION_ENTRY: |
| 829 | // Once we hit one of the source location entries, we're done. |
| 830 | return false; |
| 831 | } |
| 832 | } |
| 833 | } |
| 834 | |
| 835 | /// \brief If a header file is not found at the path that we expect it to be |
| 836 | /// and the PCH file was moved from its original location, try to resolve the |
| 837 | /// file by assuming that header+PCH were moved together and the header is in |
| 838 | /// the same place relative to the PCH. |
| 839 | static std::string |
| 840 | resolveFileRelativeToOriginalDir(const std::string &Filename, |
| 841 | const std::string &OriginalDir, |
| 842 | const std::string &CurrDir) { |
| 843 | assert(OriginalDir != CurrDir && |
| 844 | "No point trying to resolve the file if the PCH dir didn't change"); |
| 845 | using namespace llvm::sys; |
| 846 | SmallString<128> filePath(Filename); |
| 847 | fs::make_absolute(filePath); |
| 848 | assert(path::is_absolute(OriginalDir)); |
| 849 | SmallString<128> currPCHPath(CurrDir); |
| 850 | |
| 851 | path::const_iterator fileDirI = path::begin(path::parent_path(filePath)), |
| 852 | fileDirE = path::end(path::parent_path(filePath)); |
| 853 | path::const_iterator origDirI = path::begin(OriginalDir), |
| 854 | origDirE = path::end(OriginalDir); |
| 855 | // Skip the common path components from filePath and OriginalDir. |
| 856 | while (fileDirI != fileDirE && origDirI != origDirE && |
| 857 | *fileDirI == *origDirI) { |
| 858 | ++fileDirI; |
| 859 | ++origDirI; |
| 860 | } |
| 861 | for (; origDirI != origDirE; ++origDirI) |
| 862 | path::append(currPCHPath, ".."); |
| 863 | path::append(currPCHPath, fileDirI, fileDirE); |
| 864 | path::append(currPCHPath, path::filename(Filename)); |
| 865 | return currPCHPath.str(); |
| 866 | } |
| 867 | |
| 868 | bool ASTReader::ReadSLocEntry(int ID) { |
| 869 | if (ID == 0) |
| 870 | return false; |
| 871 | |
| 872 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { |
| 873 | Error("source location entry ID out-of-range for AST file"); |
| 874 | return true; |
| 875 | } |
| 876 | |
| 877 | ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second; |
| 878 | F->SLocEntryCursor.JumpToBit(F->SLocEntryOffsets[ID - F->SLocEntryBaseID]); |
| 879 | llvm::BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor; |
| 880 | unsigned BaseOffset = F->SLocEntryBaseOffset; |
| 881 | |
| 882 | ++NumSLocEntriesRead; |
| 883 | unsigned Code = SLocEntryCursor.ReadCode(); |
| 884 | if (Code == llvm::bitc::END_BLOCK || |
| 885 | Code == llvm::bitc::ENTER_SUBBLOCK || |
| 886 | Code == llvm::bitc::DEFINE_ABBREV) { |
| 887 | Error("incorrectly-formatted source location entry in AST file"); |
| 888 | return true; |
| 889 | } |
| 890 | |
| 891 | RecordData Record; |
| 892 | const char *BlobStart; |
| 893 | unsigned BlobLen; |
| 894 | switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) { |
| 895 | default: |
| 896 | Error("incorrectly-formatted source location entry in AST file"); |
| 897 | return true; |
| 898 | |
| 899 | case SM_SLOC_FILE_ENTRY: { |
| 900 | // We will detect whether a file changed and return 'Failure' for it, but |
| 901 | // we will also try to fail gracefully by setting up the SLocEntry. |
| 902 | unsigned InputID = Record[4]; |
| 903 | InputFile IF = getInputFile(*F, InputID); |
| 904 | const FileEntry *File = IF.getPointer(); |
| 905 | bool OverriddenBuffer = IF.getInt(); |
| 906 | |
| 907 | if (!IF.getPointer()) |
| 908 | return true; |
| 909 | |
| 910 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); |
| 911 | if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) { |
| 912 | // This is the module's main file. |
| 913 | IncludeLoc = getImportLocation(F); |
| 914 | } |
| 915 | SrcMgr::CharacteristicKind |
| 916 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; |
| 917 | FileID FID = SourceMgr.createFileID(File, IncludeLoc, FileCharacter, |
| 918 | ID, BaseOffset + Record[0]); |
| 919 | SrcMgr::FileInfo &FileInfo = |
| 920 | const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile()); |
| 921 | FileInfo.NumCreatedFIDs = Record[5]; |
| 922 | if (Record[3]) |
| 923 | FileInfo.setHasLineDirectives(); |
| 924 | |
| 925 | const DeclID *FirstDecl = F->FileSortedDecls + Record[6]; |
| 926 | unsigned NumFileDecls = Record[7]; |
| 927 | if (NumFileDecls) { |
| 928 | assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?"); |
| 929 | FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl, |
| 930 | NumFileDecls)); |
| 931 | } |
| 932 | |
| 933 | const SrcMgr::ContentCache *ContentCache |
| 934 | = SourceMgr.getOrCreateContentCache(File, |
| 935 | /*isSystemFile=*/FileCharacter != SrcMgr::C_User); |
| 936 | if (OverriddenBuffer && !ContentCache->BufferOverridden && |
| 937 | ContentCache->ContentsEntry == ContentCache->OrigEntry) { |
| 938 | unsigned Code = SLocEntryCursor.ReadCode(); |
| 939 | Record.clear(); |
| 940 | unsigned RecCode |
| 941 | = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen); |
| 942 | |
| 943 | if (RecCode != SM_SLOC_BUFFER_BLOB) { |
| 944 | Error("AST record has invalid code"); |
| 945 | return true; |
| 946 | } |
| 947 | |
| 948 | llvm::MemoryBuffer *Buffer |
| 949 | = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1), |
| 950 | File->getName()); |
| 951 | SourceMgr.overrideFileContents(File, Buffer); |
| 952 | } |
| 953 | |
| 954 | break; |
| 955 | } |
| 956 | |
| 957 | case SM_SLOC_BUFFER_ENTRY: { |
| 958 | const char *Name = BlobStart; |
| 959 | unsigned Offset = Record[0]; |
| 960 | SrcMgr::CharacteristicKind |
| 961 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; |
| 962 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); |
| 963 | if (IncludeLoc.isInvalid() && F->Kind == MK_Module) { |
| 964 | IncludeLoc = getImportLocation(F); |
| 965 | } |
| 966 | unsigned Code = SLocEntryCursor.ReadCode(); |
| 967 | Record.clear(); |
| 968 | unsigned RecCode |
| 969 | = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen); |
| 970 | |
| 971 | if (RecCode != SM_SLOC_BUFFER_BLOB) { |
| 972 | Error("AST record has invalid code"); |
| 973 | return true; |
| 974 | } |
| 975 | |
| 976 | llvm::MemoryBuffer *Buffer |
| 977 | = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1), |
| 978 | Name); |
| 979 | SourceMgr.createFileIDForMemBuffer(Buffer, FileCharacter, ID, |
| 980 | BaseOffset + Offset, IncludeLoc); |
| 981 | break; |
| 982 | } |
| 983 | |
| 984 | case SM_SLOC_EXPANSION_ENTRY: { |
| 985 | SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]); |
| 986 | SourceMgr.createExpansionLoc(SpellingLoc, |
| 987 | ReadSourceLocation(*F, Record[2]), |
| 988 | ReadSourceLocation(*F, Record[3]), |
| 989 | Record[4], |
| 990 | ID, |
| 991 | BaseOffset + Record[0]); |
| 992 | break; |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | return false; |
| 997 | } |
| 998 | |
| 999 | std::pair<SourceLocation, StringRef> ASTReader::getModuleImportLoc(int ID) { |
| 1000 | if (ID == 0) |
| 1001 | return std::make_pair(SourceLocation(), ""); |
| 1002 | |
| 1003 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { |
| 1004 | Error("source location entry ID out-of-range for AST file"); |
| 1005 | return std::make_pair(SourceLocation(), ""); |
| 1006 | } |
| 1007 | |
| 1008 | // Find which module file this entry lands in. |
| 1009 | ModuleFile *M = GlobalSLocEntryMap.find(-ID)->second; |
| 1010 | if (M->Kind != MK_Module) |
| 1011 | return std::make_pair(SourceLocation(), ""); |
| 1012 | |
| 1013 | // FIXME: Can we map this down to a particular submodule? That would be |
| 1014 | // ideal. |
| 1015 | return std::make_pair(M->ImportLoc, llvm::sys::path::stem(M->FileName)); |
| 1016 | } |
| 1017 | |
| 1018 | /// \brief Find the location where the module F is imported. |
| 1019 | SourceLocation ASTReader::getImportLocation(ModuleFile *F) { |
| 1020 | if (F->ImportLoc.isValid()) |
| 1021 | return F->ImportLoc; |
| 1022 | |
| 1023 | // Otherwise we have a PCH. It's considered to be "imported" at the first |
| 1024 | // location of its includer. |
| 1025 | if (F->ImportedBy.empty() || !F->ImportedBy[0]) { |
| 1026 | // Main file is the importer. We assume that it is the first entry in the |
| 1027 | // entry table. We can't ask the manager, because at the time of PCH loading |
| 1028 | // the main file entry doesn't exist yet. |
| 1029 | // The very first entry is the invalid instantiation loc, which takes up |
| 1030 | // offsets 0 and 1. |
| 1031 | return SourceLocation::getFromRawEncoding(2U); |
| 1032 | } |
| 1033 | //return F->Loaders[0]->FirstLoc; |
| 1034 | return F->ImportedBy[0]->FirstLoc; |
| 1035 | } |
| 1036 | |
| 1037 | /// ReadBlockAbbrevs - Enter a subblock of the specified BlockID with the |
| 1038 | /// specified cursor. Read the abbreviations that are at the top of the block |
| 1039 | /// and then leave the cursor pointing into the block. |
| 1040 | bool ASTReader::ReadBlockAbbrevs(llvm::BitstreamCursor &Cursor, |
| 1041 | unsigned BlockID) { |
| 1042 | if (Cursor.EnterSubBlock(BlockID)) { |
| 1043 | Error("malformed block record in AST file"); |
| 1044 | return Failure; |
| 1045 | } |
| 1046 | |
| 1047 | while (true) { |
| 1048 | uint64_t Offset = Cursor.GetCurrentBitNo(); |
| 1049 | unsigned Code = Cursor.ReadCode(); |
| 1050 | |
| 1051 | // We expect all abbrevs to be at the start of the block. |
| 1052 | if (Code != llvm::bitc::DEFINE_ABBREV) { |
| 1053 | Cursor.JumpToBit(Offset); |
| 1054 | return false; |
| 1055 | } |
| 1056 | Cursor.ReadAbbrevRecord(); |
| 1057 | } |
| 1058 | } |
| 1059 | |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 1060 | void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1061 | llvm::BitstreamCursor &Stream = F.MacroCursor; |
| 1062 | |
| 1063 | // Keep track of where we are in the stream, then jump back there |
| 1064 | // after reading this macro. |
| 1065 | SavedStreamPosition SavedPosition(Stream); |
| 1066 | |
| 1067 | Stream.JumpToBit(Offset); |
| 1068 | RecordData Record; |
| 1069 | SmallVector<IdentifierInfo*, 16> MacroArgs; |
| 1070 | MacroInfo *Macro = 0; |
| 1071 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1072 | while (true) { |
| 1073 | unsigned Code = Stream.ReadCode(); |
| 1074 | switch (Code) { |
| 1075 | case llvm::bitc::END_BLOCK: |
| 1076 | return; |
| 1077 | |
| 1078 | case llvm::bitc::ENTER_SUBBLOCK: |
| 1079 | // No known subblocks, always skip them. |
| 1080 | Stream.ReadSubBlockID(); |
| 1081 | if (Stream.SkipBlock()) { |
| 1082 | Error("malformed block record in AST file"); |
| 1083 | return; |
| 1084 | } |
| 1085 | continue; |
| 1086 | |
| 1087 | case llvm::bitc::DEFINE_ABBREV: |
| 1088 | Stream.ReadAbbrevRecord(); |
| 1089 | continue; |
| 1090 | default: break; |
| 1091 | } |
| 1092 | |
| 1093 | // Read a record. |
| 1094 | const char *BlobStart = 0; |
| 1095 | unsigned BlobLen = 0; |
| 1096 | Record.clear(); |
| 1097 | PreprocessorRecordTypes RecType = |
| 1098 | (PreprocessorRecordTypes)Stream.ReadRecord(Code, Record, BlobStart, |
| 1099 | BlobLen); |
| 1100 | switch (RecType) { |
| 1101 | case PP_MACRO_OBJECT_LIKE: |
| 1102 | case PP_MACRO_FUNCTION_LIKE: { |
| 1103 | // If we already have a macro, that means that we've hit the end |
| 1104 | // of the definition of the macro we were looking for. We're |
| 1105 | // done. |
| 1106 | if (Macro) |
| 1107 | return; |
| 1108 | |
| 1109 | IdentifierInfo *II = getLocalIdentifier(F, Record[0]); |
| 1110 | if (II == 0) { |
| 1111 | Error("macro must have a name in AST file"); |
| 1112 | return; |
| 1113 | } |
| 1114 | |
| 1115 | unsigned GlobalID = getGlobalMacroID(F, Record[1]); |
| 1116 | |
| 1117 | // If this macro has already been loaded, don't do so again. |
| 1118 | if (MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS]) |
| 1119 | return; |
| 1120 | |
| 1121 | SubmoduleID GlobalSubmoduleID = getGlobalSubmoduleID(F, Record[2]); |
| 1122 | unsigned NextIndex = 3; |
| 1123 | SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex); |
| 1124 | MacroInfo *MI = PP.AllocateMacroInfo(Loc); |
Argyrios Kyrtzidis | 8169b67 | 2013-01-07 19:16:23 +0000 | [diff] [blame] | 1125 | MI->setDefinitionEndLoc(ReadSourceLocation(F, Record, NextIndex)); |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 1126 | MacroInfo *PrevMI = getMacro(getGlobalMacroID(F, Record[NextIndex++])); |
| 1127 | MI->setPreviousDefinition(PrevMI); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1128 | |
| 1129 | // Record this macro. |
| 1130 | MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS] = MI; |
| 1131 | |
| 1132 | SourceLocation UndefLoc = ReadSourceLocation(F, Record, NextIndex); |
| 1133 | if (UndefLoc.isValid()) |
| 1134 | MI->setUndefLoc(UndefLoc); |
| 1135 | |
| 1136 | MI->setIsUsed(Record[NextIndex++]); |
| 1137 | MI->setIsFromAST(); |
| 1138 | |
| 1139 | bool IsPublic = Record[NextIndex++]; |
| 1140 | MI->setVisibility(IsPublic, ReadSourceLocation(F, Record, NextIndex)); |
| 1141 | |
| 1142 | if (RecType == PP_MACRO_FUNCTION_LIKE) { |
| 1143 | // Decode function-like macro info. |
| 1144 | bool isC99VarArgs = Record[NextIndex++]; |
| 1145 | bool isGNUVarArgs = Record[NextIndex++]; |
| 1146 | bool hasCommaPasting = Record[NextIndex++]; |
| 1147 | MacroArgs.clear(); |
| 1148 | unsigned NumArgs = Record[NextIndex++]; |
| 1149 | for (unsigned i = 0; i != NumArgs; ++i) |
| 1150 | MacroArgs.push_back(getLocalIdentifier(F, Record[NextIndex++])); |
| 1151 | |
| 1152 | // Install function-like macro info. |
| 1153 | MI->setIsFunctionLike(); |
| 1154 | if (isC99VarArgs) MI->setIsC99Varargs(); |
| 1155 | if (isGNUVarArgs) MI->setIsGNUVarargs(); |
| 1156 | if (hasCommaPasting) MI->setHasCommaPasting(); |
| 1157 | MI->setArgumentList(MacroArgs.data(), MacroArgs.size(), |
| 1158 | PP.getPreprocessorAllocator()); |
| 1159 | } |
| 1160 | |
| 1161 | if (DeserializationListener) |
| 1162 | DeserializationListener->MacroRead(GlobalID, MI); |
| 1163 | |
| 1164 | // If an update record marked this as undefined, do so now. |
| 1165 | // FIXME: Only if the submodule this update came from is visible? |
| 1166 | MacroUpdatesMap::iterator Update = MacroUpdates.find(GlobalID); |
| 1167 | if (Update != MacroUpdates.end()) { |
| 1168 | if (MI->getUndefLoc().isInvalid()) { |
| 1169 | for (unsigned I = 0, N = Update->second.size(); I != N; ++I) { |
| 1170 | bool Hidden = false; |
| 1171 | if (unsigned SubmoduleID = Update->second[I].first) { |
| 1172 | if (Module *Owner = getSubmodule(SubmoduleID)) { |
| 1173 | if (Owner->NameVisibility == Module::Hidden) { |
| 1174 | // Note that this #undef is hidden. |
| 1175 | Hidden = true; |
| 1176 | |
| 1177 | // Record this hiding for later. |
| 1178 | HiddenNamesMap[Owner].push_back( |
| 1179 | HiddenName(II, MI, Update->second[I].second.UndefLoc)); |
| 1180 | } |
| 1181 | } |
| 1182 | } |
| 1183 | |
| 1184 | if (!Hidden) { |
| 1185 | MI->setUndefLoc(Update->second[I].second.UndefLoc); |
| 1186 | if (PPMutationListener *Listener = PP.getPPMutationListener()) |
| 1187 | Listener->UndefinedMacro(MI); |
| 1188 | break; |
| 1189 | } |
| 1190 | } |
| 1191 | } |
| 1192 | MacroUpdates.erase(Update); |
| 1193 | } |
| 1194 | |
| 1195 | // Determine whether this macro definition is visible. |
| 1196 | bool Hidden = !MI->isPublic(); |
| 1197 | if (!Hidden && GlobalSubmoduleID) { |
| 1198 | if (Module *Owner = getSubmodule(GlobalSubmoduleID)) { |
| 1199 | if (Owner->NameVisibility == Module::Hidden) { |
| 1200 | // The owning module is not visible, and this macro definition |
| 1201 | // should not be, either. |
| 1202 | Hidden = true; |
| 1203 | |
| 1204 | // Note that this macro definition was hidden because its owning |
| 1205 | // module is not yet visible. |
| 1206 | HiddenNamesMap[Owner].push_back(HiddenName(II, MI)); |
| 1207 | } |
| 1208 | } |
| 1209 | } |
| 1210 | MI->setHidden(Hidden); |
| 1211 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1212 | // Remember that we saw this macro last so that we add the tokens that |
| 1213 | // form its body to it. |
| 1214 | Macro = MI; |
| 1215 | |
| 1216 | if (NextIndex + 1 == Record.size() && PP.getPreprocessingRecord() && |
| 1217 | Record[NextIndex]) { |
| 1218 | // We have a macro definition. Register the association |
| 1219 | PreprocessedEntityID |
| 1220 | GlobalID = getGlobalPreprocessedEntityID(F, Record[NextIndex]); |
| 1221 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); |
| 1222 | PPRec.RegisterMacroDefinition(Macro, |
| 1223 | PPRec.getPPEntityID(GlobalID-1, /*isLoaded=*/true)); |
| 1224 | } |
| 1225 | |
| 1226 | ++NumMacrosRead; |
| 1227 | break; |
| 1228 | } |
| 1229 | |
| 1230 | case PP_TOKEN: { |
| 1231 | // If we see a TOKEN before a PP_MACRO_*, then the file is |
| 1232 | // erroneous, just pretend we didn't see this. |
| 1233 | if (Macro == 0) break; |
| 1234 | |
| 1235 | Token Tok; |
| 1236 | Tok.startToken(); |
| 1237 | Tok.setLocation(ReadSourceLocation(F, Record[0])); |
| 1238 | Tok.setLength(Record[1]); |
| 1239 | if (IdentifierInfo *II = getLocalIdentifier(F, Record[2])) |
| 1240 | Tok.setIdentifierInfo(II); |
| 1241 | Tok.setKind((tok::TokenKind)Record[3]); |
| 1242 | Tok.setFlag((Token::TokenFlags)Record[4]); |
| 1243 | Macro->AddTokenToBody(Tok); |
| 1244 | break; |
| 1245 | } |
| 1246 | } |
| 1247 | } |
| 1248 | } |
| 1249 | |
| 1250 | PreprocessedEntityID |
| 1251 | ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M, unsigned LocalID) const { |
| 1252 | ContinuousRangeMap<uint32_t, int, 2>::const_iterator |
| 1253 | I = M.PreprocessedEntityRemap.find(LocalID - NUM_PREDEF_PP_ENTITY_IDS); |
| 1254 | assert(I != M.PreprocessedEntityRemap.end() |
| 1255 | && "Invalid index into preprocessed entity index remap"); |
| 1256 | |
| 1257 | return LocalID + I->second; |
| 1258 | } |
| 1259 | |
| 1260 | unsigned HeaderFileInfoTrait::ComputeHash(const char *path) { |
| 1261 | return llvm::HashString(llvm::sys::path::filename(path)); |
| 1262 | } |
| 1263 | |
| 1264 | HeaderFileInfoTrait::internal_key_type |
| 1265 | HeaderFileInfoTrait::GetInternalKey(const char *path) { return path; } |
| 1266 | |
| 1267 | bool HeaderFileInfoTrait::EqualKey(internal_key_type a, internal_key_type b) { |
| 1268 | if (strcmp(a, b) == 0) |
| 1269 | return true; |
| 1270 | |
| 1271 | if (llvm::sys::path::filename(a) != llvm::sys::path::filename(b)) |
| 1272 | return false; |
| 1273 | |
| 1274 | // Determine whether the actual files are equivalent. |
| 1275 | bool Result = false; |
| 1276 | if (llvm::sys::fs::equivalent(a, b, Result)) |
| 1277 | return false; |
| 1278 | |
| 1279 | return Result; |
| 1280 | } |
| 1281 | |
| 1282 | std::pair<unsigned, unsigned> |
| 1283 | HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) { |
| 1284 | unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d); |
| 1285 | unsigned DataLen = (unsigned) *d++; |
| 1286 | return std::make_pair(KeyLen + 1, DataLen); |
| 1287 | } |
| 1288 | |
| 1289 | HeaderFileInfoTrait::data_type |
| 1290 | HeaderFileInfoTrait::ReadData(const internal_key_type, const unsigned char *d, |
| 1291 | unsigned DataLen) { |
| 1292 | const unsigned char *End = d + DataLen; |
| 1293 | using namespace clang::io; |
| 1294 | HeaderFileInfo HFI; |
| 1295 | unsigned Flags = *d++; |
| 1296 | HFI.isImport = (Flags >> 5) & 0x01; |
| 1297 | HFI.isPragmaOnce = (Flags >> 4) & 0x01; |
| 1298 | HFI.DirInfo = (Flags >> 2) & 0x03; |
| 1299 | HFI.Resolved = (Flags >> 1) & 0x01; |
| 1300 | HFI.IndexHeaderMapHeader = Flags & 0x01; |
| 1301 | HFI.NumIncludes = ReadUnalignedLE16(d); |
| 1302 | HFI.ControllingMacroID = Reader.getGlobalIdentifierID(M, |
| 1303 | ReadUnalignedLE32(d)); |
| 1304 | if (unsigned FrameworkOffset = ReadUnalignedLE32(d)) { |
| 1305 | // The framework offset is 1 greater than the actual offset, |
| 1306 | // since 0 is used as an indicator for "no framework name". |
| 1307 | StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1); |
| 1308 | HFI.Framework = HS->getUniqueFrameworkName(FrameworkName); |
| 1309 | } |
| 1310 | |
| 1311 | assert(End == d && "Wrong data length in HeaderFileInfo deserialization"); |
| 1312 | (void)End; |
| 1313 | |
| 1314 | // This HeaderFileInfo was externally loaded. |
| 1315 | HFI.External = true; |
| 1316 | return HFI; |
| 1317 | } |
| 1318 | |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 1319 | void ASTReader::addMacroIDForDeserialization(IdentifierInfo *II, MacroID ID){ |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1320 | II->setHadMacroDefinition(true); |
| 1321 | assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard"); |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 1322 | SmallVector<serialization::MacroID, 2> &MacroIDs = PendingMacroIDs[II]; |
| 1323 | assert(std::find(MacroIDs.begin(), MacroIDs.end(), ID) == MacroIDs.end() && |
| 1324 | "Already added the macro ID for deserialization"); |
| 1325 | MacroIDs.push_back(ID); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | void ASTReader::ReadDefinedMacros() { |
| 1329 | // Note that we are loading defined macros. |
| 1330 | Deserializing Macros(this); |
| 1331 | |
| 1332 | for (ModuleReverseIterator I = ModuleMgr.rbegin(), |
| 1333 | E = ModuleMgr.rend(); I != E; ++I) { |
| 1334 | llvm::BitstreamCursor &MacroCursor = (*I)->MacroCursor; |
| 1335 | |
| 1336 | // If there was no preprocessor block, skip this file. |
| 1337 | if (!MacroCursor.getBitStreamReader()) |
| 1338 | continue; |
| 1339 | |
| 1340 | llvm::BitstreamCursor Cursor = MacroCursor; |
| 1341 | Cursor.JumpToBit((*I)->MacroStartOffset); |
| 1342 | |
| 1343 | RecordData Record; |
| 1344 | while (true) { |
| 1345 | unsigned Code = Cursor.ReadCode(); |
| 1346 | if (Code == llvm::bitc::END_BLOCK) |
| 1347 | break; |
| 1348 | |
| 1349 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 1350 | // No known subblocks, always skip them. |
| 1351 | Cursor.ReadSubBlockID(); |
| 1352 | if (Cursor.SkipBlock()) { |
| 1353 | Error("malformed block record in AST file"); |
| 1354 | return; |
| 1355 | } |
| 1356 | continue; |
| 1357 | } |
| 1358 | |
| 1359 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 1360 | Cursor.ReadAbbrevRecord(); |
| 1361 | continue; |
| 1362 | } |
| 1363 | |
| 1364 | // Read a record. |
| 1365 | const char *BlobStart; |
| 1366 | unsigned BlobLen; |
| 1367 | Record.clear(); |
| 1368 | switch (Cursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) { |
| 1369 | default: // Default behavior: ignore. |
| 1370 | break; |
| 1371 | |
| 1372 | case PP_MACRO_OBJECT_LIKE: |
| 1373 | case PP_MACRO_FUNCTION_LIKE: |
| 1374 | getLocalIdentifier(**I, Record[0]); |
| 1375 | break; |
| 1376 | |
| 1377 | case PP_TOKEN: |
| 1378 | // Ignore tokens. |
| 1379 | break; |
| 1380 | } |
| 1381 | } |
| 1382 | } |
| 1383 | } |
| 1384 | |
| 1385 | namespace { |
| 1386 | /// \brief Visitor class used to look up identifirs in an AST file. |
| 1387 | class IdentifierLookupVisitor { |
| 1388 | StringRef Name; |
| 1389 | unsigned PriorGeneration; |
| 1390 | IdentifierInfo *Found; |
| 1391 | public: |
| 1392 | IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration) |
| 1393 | : Name(Name), PriorGeneration(PriorGeneration), Found() { } |
| 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); |
| 1410 | |
| 1411 | std::pair<const char*, unsigned> Key(This->Name.begin(), |
| 1412 | This->Name.size()); |
| 1413 | ASTIdentifierLookupTable::iterator Pos = IdTable->find(Key, &Trait); |
| 1414 | if (Pos == IdTable->end()) |
| 1415 | return false; |
| 1416 | |
| 1417 | // Dereferencing the iterator has the effect of building the |
| 1418 | // IdentifierInfo node and populating it with the various |
| 1419 | // declarations it needs. |
| 1420 | This->Found = *Pos; |
| 1421 | return true; |
| 1422 | } |
| 1423 | |
| 1424 | // \brief Retrieve the identifier info found within the module |
| 1425 | // files. |
| 1426 | IdentifierInfo *getIdentifierInfo() const { return Found; } |
| 1427 | }; |
| 1428 | } |
| 1429 | |
| 1430 | void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) { |
| 1431 | // Note that we are loading an identifier. |
| 1432 | Deserializing AnIdentifier(this); |
| 1433 | |
| 1434 | unsigned PriorGeneration = 0; |
| 1435 | if (getContext().getLangOpts().Modules) |
| 1436 | PriorGeneration = IdentifierGeneration[&II]; |
| 1437 | |
| 1438 | IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration); |
| 1439 | ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor); |
| 1440 | markIdentifierUpToDate(&II); |
| 1441 | } |
| 1442 | |
| 1443 | void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) { |
| 1444 | if (!II) |
| 1445 | return; |
| 1446 | |
| 1447 | II->setOutOfDate(false); |
| 1448 | |
| 1449 | // Update the generation for this identifier. |
| 1450 | if (getContext().getLangOpts().Modules) |
| 1451 | IdentifierGeneration[II] = CurrentGeneration; |
| 1452 | } |
| 1453 | |
| 1454 | llvm::PointerIntPair<const FileEntry *, 1, bool> |
| 1455 | ASTReader::getInputFile(ModuleFile &F, unsigned ID, bool Complain) { |
| 1456 | // If this ID is bogus, just return an empty input file. |
| 1457 | if (ID == 0 || ID > F.InputFilesLoaded.size()) |
| 1458 | return InputFile(); |
| 1459 | |
| 1460 | // If we've already loaded this input file, return it. |
| 1461 | if (F.InputFilesLoaded[ID-1].getPointer()) |
| 1462 | return F.InputFilesLoaded[ID-1]; |
| 1463 | |
| 1464 | // Go find this input file. |
| 1465 | llvm::BitstreamCursor &Cursor = F.InputFilesCursor; |
| 1466 | SavedStreamPosition SavedPosition(Cursor); |
| 1467 | Cursor.JumpToBit(F.InputFileOffsets[ID-1]); |
| 1468 | |
| 1469 | unsigned Code = Cursor.ReadCode(); |
| 1470 | RecordData Record; |
| 1471 | const char *BlobStart = 0; |
| 1472 | unsigned BlobLen = 0; |
| 1473 | switch ((InputFileRecordTypes)Cursor.ReadRecord(Code, Record, |
| 1474 | &BlobStart, &BlobLen)) { |
| 1475 | case INPUT_FILE: { |
| 1476 | unsigned StoredID = Record[0]; |
| 1477 | assert(ID == StoredID && "Bogus stored ID or offset"); |
| 1478 | (void)StoredID; |
| 1479 | off_t StoredSize = (off_t)Record[1]; |
| 1480 | time_t StoredTime = (time_t)Record[2]; |
| 1481 | bool Overridden = (bool)Record[3]; |
| 1482 | |
| 1483 | // Get the file entry for this input file. |
| 1484 | StringRef OrigFilename(BlobStart, BlobLen); |
| 1485 | std::string Filename = OrigFilename; |
| 1486 | MaybeAddSystemRootToFilename(F, Filename); |
| 1487 | const FileEntry *File |
| 1488 | = Overridden? FileMgr.getVirtualFile(Filename, StoredSize, StoredTime) |
| 1489 | : FileMgr.getFile(Filename, /*OpenFile=*/false); |
| 1490 | |
| 1491 | // If we didn't find the file, resolve it relative to the |
| 1492 | // original directory from which this AST file was created. |
| 1493 | if (File == 0 && !F.OriginalDir.empty() && !CurrentDir.empty() && |
| 1494 | F.OriginalDir != CurrentDir) { |
| 1495 | std::string Resolved = resolveFileRelativeToOriginalDir(Filename, |
| 1496 | F.OriginalDir, |
| 1497 | CurrentDir); |
| 1498 | if (!Resolved.empty()) |
| 1499 | File = FileMgr.getFile(Resolved); |
| 1500 | } |
| 1501 | |
| 1502 | // For an overridden file, create a virtual file with the stored |
| 1503 | // size/timestamp. |
| 1504 | if (Overridden && File == 0) { |
| 1505 | File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime); |
| 1506 | } |
| 1507 | |
| 1508 | if (File == 0) { |
| 1509 | if (Complain) { |
| 1510 | std::string ErrorStr = "could not find file '"; |
| 1511 | ErrorStr += Filename; |
| 1512 | ErrorStr += "' referenced by AST file"; |
| 1513 | Error(ErrorStr.c_str()); |
| 1514 | } |
| 1515 | return InputFile(); |
| 1516 | } |
| 1517 | |
| 1518 | // Note that we've loaded this input file. |
| 1519 | F.InputFilesLoaded[ID-1] = InputFile(File, Overridden); |
| 1520 | |
| 1521 | // Check if there was a request to override the contents of the file |
| 1522 | // that was part of the precompiled header. Overridding such a file |
| 1523 | // can lead to problems when lexing using the source locations from the |
| 1524 | // PCH. |
| 1525 | SourceManager &SM = getSourceManager(); |
| 1526 | if (!Overridden && SM.isFileOverridden(File)) { |
| 1527 | Error(diag::err_fe_pch_file_overridden, Filename); |
| 1528 | // After emitting the diagnostic, recover by disabling the override so |
| 1529 | // that the original file will be used. |
| 1530 | SM.disableFileContentsOverride(File); |
| 1531 | // The FileEntry is a virtual file entry with the size of the contents |
| 1532 | // that would override the original contents. Set it to the original's |
| 1533 | // size/time. |
| 1534 | FileMgr.modifyFileEntry(const_cast<FileEntry*>(File), |
| 1535 | StoredSize, StoredTime); |
| 1536 | } |
| 1537 | |
| 1538 | // For an overridden file, there is nothing to validate. |
| 1539 | if (Overridden) |
| 1540 | return InputFile(File, Overridden); |
| 1541 | |
| 1542 | if ((StoredSize != File->getSize() |
| 1543 | #if !defined(LLVM_ON_WIN32) |
| 1544 | // In our regression testing, the Windows file system seems to |
| 1545 | // have inconsistent modification times that sometimes |
| 1546 | // erroneously trigger this error-handling path. |
| 1547 | || StoredTime != File->getModificationTime() |
| 1548 | #endif |
| 1549 | )) { |
| 1550 | if (Complain) |
| 1551 | Error(diag::err_fe_pch_file_modified, Filename); |
| 1552 | |
| 1553 | return InputFile(); |
| 1554 | } |
| 1555 | |
| 1556 | return InputFile(File, Overridden); |
| 1557 | } |
| 1558 | } |
| 1559 | |
| 1560 | return InputFile(); |
| 1561 | } |
| 1562 | |
| 1563 | const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) { |
| 1564 | ModuleFile &M = ModuleMgr.getPrimaryModule(); |
| 1565 | std::string Filename = filenameStrRef; |
| 1566 | MaybeAddSystemRootToFilename(M, Filename); |
| 1567 | const FileEntry *File = FileMgr.getFile(Filename); |
| 1568 | if (File == 0 && !M.OriginalDir.empty() && !CurrentDir.empty() && |
| 1569 | M.OriginalDir != CurrentDir) { |
| 1570 | std::string resolved = resolveFileRelativeToOriginalDir(Filename, |
| 1571 | M.OriginalDir, |
| 1572 | CurrentDir); |
| 1573 | if (!resolved.empty()) |
| 1574 | File = FileMgr.getFile(resolved); |
| 1575 | } |
| 1576 | |
| 1577 | return File; |
| 1578 | } |
| 1579 | |
| 1580 | /// \brief If we are loading a relocatable PCH file, and the filename is |
| 1581 | /// not an absolute path, add the system root to the beginning of the file |
| 1582 | /// name. |
| 1583 | void ASTReader::MaybeAddSystemRootToFilename(ModuleFile &M, |
| 1584 | std::string &Filename) { |
| 1585 | // If this is not a relocatable PCH file, there's nothing to do. |
| 1586 | if (!M.RelocatablePCH) |
| 1587 | return; |
| 1588 | |
| 1589 | if (Filename.empty() || llvm::sys::path::is_absolute(Filename)) |
| 1590 | return; |
| 1591 | |
| 1592 | if (isysroot.empty()) { |
| 1593 | // If no system root was given, default to '/' |
| 1594 | Filename.insert(Filename.begin(), '/'); |
| 1595 | return; |
| 1596 | } |
| 1597 | |
| 1598 | unsigned Length = isysroot.size(); |
| 1599 | if (isysroot[Length - 1] != '/') |
| 1600 | Filename.insert(Filename.begin(), '/'); |
| 1601 | |
| 1602 | Filename.insert(Filename.begin(), isysroot.begin(), isysroot.end()); |
| 1603 | } |
| 1604 | |
| 1605 | ASTReader::ASTReadResult |
| 1606 | ASTReader::ReadControlBlock(ModuleFile &F, |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 1607 | SmallVectorImpl<ImportedModule> &Loaded, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 1608 | unsigned ClientLoadCapabilities) { |
| 1609 | llvm::BitstreamCursor &Stream = F.Stream; |
| 1610 | |
| 1611 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { |
| 1612 | Error("malformed block record in AST file"); |
| 1613 | return Failure; |
| 1614 | } |
| 1615 | |
| 1616 | // Read all of the records and blocks in the control block. |
| 1617 | RecordData Record; |
| 1618 | while (!Stream.AtEndOfStream()) { |
| 1619 | unsigned Code = Stream.ReadCode(); |
| 1620 | if (Code == llvm::bitc::END_BLOCK) { |
| 1621 | if (Stream.ReadBlockEnd()) { |
| 1622 | Error("error at end of control block in AST file"); |
| 1623 | return Failure; |
| 1624 | } |
| 1625 | |
| 1626 | // Validate all of the input files. |
| 1627 | if (!DisableValidation) { |
| 1628 | bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0; |
| 1629 | for (unsigned I = 0, N = Record[0]; I < N; ++I) |
| 1630 | if (!getInputFile(F, I+1, Complain).getPointer()) |
| 1631 | return OutOfDate; |
| 1632 | } |
| 1633 | |
| 1634 | return Success; |
| 1635 | } |
| 1636 | |
| 1637 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 1638 | switch (Stream.ReadSubBlockID()) { |
| 1639 | case INPUT_FILES_BLOCK_ID: |
| 1640 | F.InputFilesCursor = Stream; |
| 1641 | if (Stream.SkipBlock() || // Skip with the main cursor |
| 1642 | // Read the abbreviations |
| 1643 | ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) { |
| 1644 | Error("malformed block record in AST file"); |
| 1645 | return Failure; |
| 1646 | } |
| 1647 | continue; |
| 1648 | |
| 1649 | default: |
| 1650 | if (!Stream.SkipBlock()) |
| 1651 | continue; |
| 1652 | break; |
| 1653 | } |
| 1654 | |
| 1655 | Error("malformed block record in AST file"); |
| 1656 | return Failure; |
| 1657 | } |
| 1658 | |
| 1659 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 1660 | Stream.ReadAbbrevRecord(); |
| 1661 | continue; |
| 1662 | } |
| 1663 | |
| 1664 | // Read and process a record. |
| 1665 | Record.clear(); |
| 1666 | const char *BlobStart = 0; |
| 1667 | unsigned BlobLen = 0; |
| 1668 | switch ((ControlRecordTypes)Stream.ReadRecord(Code, Record, |
| 1669 | &BlobStart, &BlobLen)) { |
| 1670 | case METADATA: { |
| 1671 | if (Record[0] != VERSION_MAJOR && !DisableValidation) { |
| 1672 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) |
| 1673 | Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old |
| 1674 | : diag::warn_pch_version_too_new); |
| 1675 | return VersionMismatch; |
| 1676 | } |
| 1677 | |
| 1678 | bool hasErrors = Record[5]; |
| 1679 | if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) { |
| 1680 | Diag(diag::err_pch_with_compiler_errors); |
| 1681 | return HadErrors; |
| 1682 | } |
| 1683 | |
| 1684 | F.RelocatablePCH = Record[4]; |
| 1685 | |
| 1686 | const std::string &CurBranch = getClangFullRepositoryVersion(); |
| 1687 | StringRef ASTBranch(BlobStart, BlobLen); |
| 1688 | if (StringRef(CurBranch) != ASTBranch && !DisableValidation) { |
| 1689 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) |
| 1690 | Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch; |
| 1691 | return VersionMismatch; |
| 1692 | } |
| 1693 | break; |
| 1694 | } |
| 1695 | |
| 1696 | case IMPORTS: { |
| 1697 | // Load each of the imported PCH files. |
| 1698 | unsigned Idx = 0, N = Record.size(); |
| 1699 | while (Idx < N) { |
| 1700 | // Read information about the AST file. |
| 1701 | ModuleKind ImportedKind = (ModuleKind)Record[Idx++]; |
| 1702 | // The import location will be the local one for now; we will adjust |
| 1703 | // all import locations of module imports after the global source |
| 1704 | // location info are setup. |
| 1705 | SourceLocation ImportLoc = |
| 1706 | SourceLocation::getFromRawEncoding(Record[Idx++]); |
| 1707 | unsigned Length = Record[Idx++]; |
| 1708 | SmallString<128> ImportedFile(Record.begin() + Idx, |
| 1709 | Record.begin() + Idx + Length); |
| 1710 | Idx += Length; |
| 1711 | |
| 1712 | // Load the AST file. |
| 1713 | switch(ReadASTCore(ImportedFile, ImportedKind, ImportLoc, &F, Loaded, |
| 1714 | ClientLoadCapabilities)) { |
| 1715 | case Failure: return Failure; |
| 1716 | // If we have to ignore the dependency, we'll have to ignore this too. |
| 1717 | case OutOfDate: return OutOfDate; |
| 1718 | case VersionMismatch: return VersionMismatch; |
| 1719 | case ConfigurationMismatch: return ConfigurationMismatch; |
| 1720 | case HadErrors: return HadErrors; |
| 1721 | case Success: break; |
| 1722 | } |
| 1723 | } |
| 1724 | break; |
| 1725 | } |
| 1726 | |
| 1727 | case LANGUAGE_OPTIONS: { |
| 1728 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; |
| 1729 | if (Listener && &F == *ModuleMgr.begin() && |
| 1730 | ParseLanguageOptions(Record, Complain, *Listener) && |
| 1731 | !DisableValidation) |
| 1732 | return ConfigurationMismatch; |
| 1733 | break; |
| 1734 | } |
| 1735 | |
| 1736 | case TARGET_OPTIONS: { |
| 1737 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1738 | if (Listener && &F == *ModuleMgr.begin() && |
| 1739 | ParseTargetOptions(Record, Complain, *Listener) && |
| 1740 | !DisableValidation) |
| 1741 | return ConfigurationMismatch; |
| 1742 | break; |
| 1743 | } |
| 1744 | |
| 1745 | case DIAGNOSTIC_OPTIONS: { |
| 1746 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1747 | if (Listener && &F == *ModuleMgr.begin() && |
| 1748 | ParseDiagnosticOptions(Record, Complain, *Listener) && |
| 1749 | !DisableValidation) |
| 1750 | return ConfigurationMismatch; |
| 1751 | break; |
| 1752 | } |
| 1753 | |
| 1754 | case FILE_SYSTEM_OPTIONS: { |
| 1755 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1756 | if (Listener && &F == *ModuleMgr.begin() && |
| 1757 | ParseFileSystemOptions(Record, Complain, *Listener) && |
| 1758 | !DisableValidation) |
| 1759 | return ConfigurationMismatch; |
| 1760 | break; |
| 1761 | } |
| 1762 | |
| 1763 | case HEADER_SEARCH_OPTIONS: { |
| 1764 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1765 | if (Listener && &F == *ModuleMgr.begin() && |
| 1766 | ParseHeaderSearchOptions(Record, Complain, *Listener) && |
| 1767 | !DisableValidation) |
| 1768 | return ConfigurationMismatch; |
| 1769 | break; |
| 1770 | } |
| 1771 | |
| 1772 | case PREPROCESSOR_OPTIONS: { |
| 1773 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; |
| 1774 | if (Listener && &F == *ModuleMgr.begin() && |
| 1775 | ParsePreprocessorOptions(Record, Complain, *Listener, |
| 1776 | SuggestedPredefines) && |
| 1777 | !DisableValidation) |
| 1778 | return ConfigurationMismatch; |
| 1779 | break; |
| 1780 | } |
| 1781 | |
| 1782 | case ORIGINAL_FILE: |
| 1783 | F.OriginalSourceFileID = FileID::get(Record[0]); |
| 1784 | F.ActualOriginalSourceFileName.assign(BlobStart, BlobLen); |
| 1785 | F.OriginalSourceFileName = F.ActualOriginalSourceFileName; |
| 1786 | MaybeAddSystemRootToFilename(F, F.OriginalSourceFileName); |
| 1787 | break; |
| 1788 | |
| 1789 | case ORIGINAL_FILE_ID: |
| 1790 | F.OriginalSourceFileID = FileID::get(Record[0]); |
| 1791 | break; |
| 1792 | |
| 1793 | case ORIGINAL_PCH_DIR: |
| 1794 | F.OriginalDir.assign(BlobStart, BlobLen); |
| 1795 | break; |
| 1796 | |
| 1797 | case INPUT_FILE_OFFSETS: |
| 1798 | F.InputFileOffsets = (const uint32_t *)BlobStart; |
| 1799 | F.InputFilesLoaded.resize(Record[0]); |
| 1800 | break; |
| 1801 | } |
| 1802 | } |
| 1803 | |
| 1804 | Error("premature end of bitstream in AST file"); |
| 1805 | return Failure; |
| 1806 | } |
| 1807 | |
| 1808 | bool ASTReader::ReadASTBlock(ModuleFile &F) { |
| 1809 | llvm::BitstreamCursor &Stream = F.Stream; |
| 1810 | |
| 1811 | if (Stream.EnterSubBlock(AST_BLOCK_ID)) { |
| 1812 | Error("malformed block record in AST file"); |
| 1813 | return true; |
| 1814 | } |
| 1815 | |
| 1816 | // Read all of the records and blocks for the AST file. |
| 1817 | RecordData Record; |
| 1818 | while (!Stream.AtEndOfStream()) { |
| 1819 | unsigned Code = Stream.ReadCode(); |
| 1820 | if (Code == llvm::bitc::END_BLOCK) { |
| 1821 | if (Stream.ReadBlockEnd()) { |
| 1822 | Error("error at end of module block in AST file"); |
| 1823 | return true; |
| 1824 | } |
| 1825 | |
| 1826 | DeclContext *DC = Context.getTranslationUnitDecl(); |
| 1827 | if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage()) |
| 1828 | DC->setMustBuildLookupTable(); |
| 1829 | |
| 1830 | return false; |
| 1831 | } |
| 1832 | |
| 1833 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 1834 | switch (Stream.ReadSubBlockID()) { |
| 1835 | case DECLTYPES_BLOCK_ID: |
| 1836 | // We lazily load the decls block, but we want to set up the |
| 1837 | // DeclsCursor cursor to point into it. Clone our current bitcode |
| 1838 | // cursor to it, enter the block and read the abbrevs in that block. |
| 1839 | // With the main cursor, we just skip over it. |
| 1840 | F.DeclsCursor = Stream; |
| 1841 | if (Stream.SkipBlock() || // Skip with the main cursor. |
| 1842 | // Read the abbrevs. |
| 1843 | ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) { |
| 1844 | Error("malformed block record in AST file"); |
| 1845 | return true; |
| 1846 | } |
| 1847 | break; |
| 1848 | |
| 1849 | case DECL_UPDATES_BLOCK_ID: |
| 1850 | if (Stream.SkipBlock()) { |
| 1851 | Error("malformed block record in AST file"); |
| 1852 | return true; |
| 1853 | } |
| 1854 | break; |
| 1855 | |
| 1856 | case PREPROCESSOR_BLOCK_ID: |
| 1857 | F.MacroCursor = Stream; |
| 1858 | if (!PP.getExternalSource()) |
| 1859 | PP.setExternalSource(this); |
| 1860 | |
| 1861 | if (Stream.SkipBlock() || |
| 1862 | ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) { |
| 1863 | Error("malformed block record in AST file"); |
| 1864 | return true; |
| 1865 | } |
| 1866 | F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo(); |
| 1867 | break; |
| 1868 | |
| 1869 | case PREPROCESSOR_DETAIL_BLOCK_ID: |
| 1870 | F.PreprocessorDetailCursor = Stream; |
| 1871 | if (Stream.SkipBlock() || |
| 1872 | ReadBlockAbbrevs(F.PreprocessorDetailCursor, |
| 1873 | PREPROCESSOR_DETAIL_BLOCK_ID)) { |
| 1874 | Error("malformed preprocessor detail record in AST file"); |
| 1875 | return true; |
| 1876 | } |
| 1877 | F.PreprocessorDetailStartOffset |
| 1878 | = F.PreprocessorDetailCursor.GetCurrentBitNo(); |
| 1879 | |
| 1880 | if (!PP.getPreprocessingRecord()) |
| 1881 | PP.createPreprocessingRecord(); |
| 1882 | if (!PP.getPreprocessingRecord()->getExternalSource()) |
| 1883 | PP.getPreprocessingRecord()->SetExternalSource(*this); |
| 1884 | break; |
| 1885 | |
| 1886 | case SOURCE_MANAGER_BLOCK_ID: |
| 1887 | if (ReadSourceManagerBlock(F)) |
| 1888 | return true; |
| 1889 | break; |
| 1890 | |
| 1891 | case SUBMODULE_BLOCK_ID: |
| 1892 | if (ReadSubmoduleBlock(F)) |
| 1893 | return true; |
| 1894 | break; |
| 1895 | |
| 1896 | case COMMENTS_BLOCK_ID: { |
| 1897 | llvm::BitstreamCursor C = Stream; |
| 1898 | if (Stream.SkipBlock() || |
| 1899 | ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) { |
| 1900 | Error("malformed comments block in AST file"); |
| 1901 | return true; |
| 1902 | } |
| 1903 | CommentsCursors.push_back(std::make_pair(C, &F)); |
| 1904 | break; |
| 1905 | } |
| 1906 | |
| 1907 | default: |
| 1908 | if (!Stream.SkipBlock()) |
| 1909 | break; |
| 1910 | Error("malformed block record in AST file"); |
| 1911 | return true; |
| 1912 | } |
| 1913 | continue; |
| 1914 | } |
| 1915 | |
| 1916 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 1917 | Stream.ReadAbbrevRecord(); |
| 1918 | continue; |
| 1919 | } |
| 1920 | |
| 1921 | // Read and process a record. |
| 1922 | Record.clear(); |
| 1923 | const char *BlobStart = 0; |
| 1924 | unsigned BlobLen = 0; |
| 1925 | switch ((ASTRecordTypes)Stream.ReadRecord(Code, Record, |
| 1926 | &BlobStart, &BlobLen)) { |
| 1927 | default: // Default behavior: ignore. |
| 1928 | break; |
| 1929 | |
| 1930 | case TYPE_OFFSET: { |
| 1931 | if (F.LocalNumTypes != 0) { |
| 1932 | Error("duplicate TYPE_OFFSET record in AST file"); |
| 1933 | return true; |
| 1934 | } |
| 1935 | F.TypeOffsets = (const uint32_t *)BlobStart; |
| 1936 | F.LocalNumTypes = Record[0]; |
| 1937 | unsigned LocalBaseTypeIndex = Record[1]; |
| 1938 | F.BaseTypeIndex = getTotalNumTypes(); |
| 1939 | |
| 1940 | if (F.LocalNumTypes > 0) { |
| 1941 | // Introduce the global -> local mapping for types within this module. |
| 1942 | GlobalTypeMap.insert(std::make_pair(getTotalNumTypes(), &F)); |
| 1943 | |
| 1944 | // Introduce the local -> global mapping for types within this module. |
| 1945 | F.TypeRemap.insertOrReplace( |
| 1946 | std::make_pair(LocalBaseTypeIndex, |
| 1947 | F.BaseTypeIndex - LocalBaseTypeIndex)); |
| 1948 | |
| 1949 | TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes); |
| 1950 | } |
| 1951 | break; |
| 1952 | } |
| 1953 | |
| 1954 | case DECL_OFFSET: { |
| 1955 | if (F.LocalNumDecls != 0) { |
| 1956 | Error("duplicate DECL_OFFSET record in AST file"); |
| 1957 | return true; |
| 1958 | } |
| 1959 | F.DeclOffsets = (const DeclOffset *)BlobStart; |
| 1960 | F.LocalNumDecls = Record[0]; |
| 1961 | unsigned LocalBaseDeclID = Record[1]; |
| 1962 | F.BaseDeclID = getTotalNumDecls(); |
| 1963 | |
| 1964 | if (F.LocalNumDecls > 0) { |
| 1965 | // Introduce the global -> local mapping for declarations within this |
| 1966 | // module. |
| 1967 | GlobalDeclMap.insert( |
| 1968 | std::make_pair(getTotalNumDecls() + NUM_PREDEF_DECL_IDS, &F)); |
| 1969 | |
| 1970 | // Introduce the local -> global mapping for declarations within this |
| 1971 | // module. |
| 1972 | F.DeclRemap.insertOrReplace( |
| 1973 | std::make_pair(LocalBaseDeclID, F.BaseDeclID - LocalBaseDeclID)); |
| 1974 | |
| 1975 | // Introduce the global -> local mapping for declarations within this |
| 1976 | // module. |
| 1977 | F.GlobalToLocalDeclIDs[&F] = LocalBaseDeclID; |
| 1978 | |
| 1979 | DeclsLoaded.resize(DeclsLoaded.size() + F.LocalNumDecls); |
| 1980 | } |
| 1981 | break; |
| 1982 | } |
| 1983 | |
| 1984 | case TU_UPDATE_LEXICAL: { |
| 1985 | DeclContext *TU = Context.getTranslationUnitDecl(); |
| 1986 | DeclContextInfo &Info = F.DeclContextInfos[TU]; |
| 1987 | Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair *>(BlobStart); |
| 1988 | Info.NumLexicalDecls |
| 1989 | = static_cast<unsigned int>(BlobLen / sizeof(KindDeclIDPair)); |
| 1990 | TU->setHasExternalLexicalStorage(true); |
| 1991 | break; |
| 1992 | } |
| 1993 | |
| 1994 | case UPDATE_VISIBLE: { |
| 1995 | unsigned Idx = 0; |
| 1996 | serialization::DeclID ID = ReadDeclID(F, Record, Idx); |
| 1997 | ASTDeclContextNameLookupTable *Table = |
| 1998 | ASTDeclContextNameLookupTable::Create( |
| 1999 | (const unsigned char *)BlobStart + Record[Idx++], |
| 2000 | (const unsigned char *)BlobStart, |
| 2001 | ASTDeclContextNameLookupTrait(*this, F)); |
| 2002 | if (ID == PREDEF_DECL_TRANSLATION_UNIT_ID) { // Is it the TU? |
| 2003 | DeclContext *TU = Context.getTranslationUnitDecl(); |
| 2004 | F.DeclContextInfos[TU].NameLookupTableData = Table; |
| 2005 | TU->setHasExternalVisibleStorage(true); |
| 2006 | } else |
| 2007 | PendingVisibleUpdates[ID].push_back(std::make_pair(Table, &F)); |
| 2008 | break; |
| 2009 | } |
| 2010 | |
| 2011 | case IDENTIFIER_TABLE: |
| 2012 | F.IdentifierTableData = BlobStart; |
| 2013 | if (Record[0]) { |
| 2014 | F.IdentifierLookupTable |
| 2015 | = ASTIdentifierLookupTable::Create( |
| 2016 | (const unsigned char *)F.IdentifierTableData + Record[0], |
| 2017 | (const unsigned char *)F.IdentifierTableData, |
| 2018 | ASTIdentifierLookupTrait(*this, F)); |
| 2019 | |
| 2020 | PP.getIdentifierTable().setExternalIdentifierLookup(this); |
| 2021 | } |
| 2022 | break; |
| 2023 | |
| 2024 | case IDENTIFIER_OFFSET: { |
| 2025 | if (F.LocalNumIdentifiers != 0) { |
| 2026 | Error("duplicate IDENTIFIER_OFFSET record in AST file"); |
| 2027 | return true; |
| 2028 | } |
| 2029 | F.IdentifierOffsets = (const uint32_t *)BlobStart; |
| 2030 | F.LocalNumIdentifiers = Record[0]; |
| 2031 | unsigned LocalBaseIdentifierID = Record[1]; |
| 2032 | F.BaseIdentifierID = getTotalNumIdentifiers(); |
| 2033 | |
| 2034 | if (F.LocalNumIdentifiers > 0) { |
| 2035 | // Introduce the global -> local mapping for identifiers within this |
| 2036 | // module. |
| 2037 | GlobalIdentifierMap.insert(std::make_pair(getTotalNumIdentifiers() + 1, |
| 2038 | &F)); |
| 2039 | |
| 2040 | // Introduce the local -> global mapping for identifiers within this |
| 2041 | // module. |
| 2042 | F.IdentifierRemap.insertOrReplace( |
| 2043 | std::make_pair(LocalBaseIdentifierID, |
| 2044 | F.BaseIdentifierID - LocalBaseIdentifierID)); |
| 2045 | |
| 2046 | IdentifiersLoaded.resize(IdentifiersLoaded.size() |
| 2047 | + F.LocalNumIdentifiers); |
| 2048 | } |
| 2049 | break; |
| 2050 | } |
| 2051 | |
| 2052 | case EXTERNAL_DEFINITIONS: |
| 2053 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2054 | ExternalDefinitions.push_back(getGlobalDeclID(F, Record[I])); |
| 2055 | break; |
| 2056 | |
| 2057 | case SPECIAL_TYPES: |
| 2058 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2059 | SpecialTypes.push_back(getGlobalTypeID(F, Record[I])); |
| 2060 | break; |
| 2061 | |
| 2062 | case STATISTICS: |
| 2063 | TotalNumStatements += Record[0]; |
| 2064 | TotalNumMacros += Record[1]; |
| 2065 | TotalLexicalDeclContexts += Record[2]; |
| 2066 | TotalVisibleDeclContexts += Record[3]; |
| 2067 | break; |
| 2068 | |
| 2069 | case UNUSED_FILESCOPED_DECLS: |
| 2070 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2071 | UnusedFileScopedDecls.push_back(getGlobalDeclID(F, Record[I])); |
| 2072 | break; |
| 2073 | |
| 2074 | case DELEGATING_CTORS: |
| 2075 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2076 | DelegatingCtorDecls.push_back(getGlobalDeclID(F, Record[I])); |
| 2077 | break; |
| 2078 | |
| 2079 | case WEAK_UNDECLARED_IDENTIFIERS: |
| 2080 | if (Record.size() % 4 != 0) { |
| 2081 | Error("invalid weak identifiers record"); |
| 2082 | return true; |
| 2083 | } |
| 2084 | |
| 2085 | // FIXME: Ignore weak undeclared identifiers from non-original PCH |
| 2086 | // files. This isn't the way to do it :) |
| 2087 | WeakUndeclaredIdentifiers.clear(); |
| 2088 | |
| 2089 | // Translate the weak, undeclared identifiers into global IDs. |
| 2090 | for (unsigned I = 0, N = Record.size(); I < N; /* in loop */) { |
| 2091 | WeakUndeclaredIdentifiers.push_back( |
| 2092 | getGlobalIdentifierID(F, Record[I++])); |
| 2093 | WeakUndeclaredIdentifiers.push_back( |
| 2094 | getGlobalIdentifierID(F, Record[I++])); |
| 2095 | WeakUndeclaredIdentifiers.push_back( |
| 2096 | ReadSourceLocation(F, Record, I).getRawEncoding()); |
| 2097 | WeakUndeclaredIdentifiers.push_back(Record[I++]); |
| 2098 | } |
| 2099 | break; |
| 2100 | |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 2101 | case LOCALLY_SCOPED_EXTERN_C_DECLS: |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2102 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 2103 | LocallyScopedExternCDecls.push_back(getGlobalDeclID(F, Record[I])); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2104 | break; |
| 2105 | |
| 2106 | case SELECTOR_OFFSETS: { |
| 2107 | F.SelectorOffsets = (const uint32_t *)BlobStart; |
| 2108 | F.LocalNumSelectors = Record[0]; |
| 2109 | unsigned LocalBaseSelectorID = Record[1]; |
| 2110 | F.BaseSelectorID = getTotalNumSelectors(); |
| 2111 | |
| 2112 | if (F.LocalNumSelectors > 0) { |
| 2113 | // Introduce the global -> local mapping for selectors within this |
| 2114 | // module. |
| 2115 | GlobalSelectorMap.insert(std::make_pair(getTotalNumSelectors()+1, &F)); |
| 2116 | |
| 2117 | // Introduce the local -> global mapping for selectors within this |
| 2118 | // module. |
| 2119 | F.SelectorRemap.insertOrReplace( |
| 2120 | std::make_pair(LocalBaseSelectorID, |
| 2121 | F.BaseSelectorID - LocalBaseSelectorID)); |
| 2122 | |
| 2123 | SelectorsLoaded.resize(SelectorsLoaded.size() + F.LocalNumSelectors); |
| 2124 | } |
| 2125 | break; |
| 2126 | } |
| 2127 | |
| 2128 | case METHOD_POOL: |
| 2129 | F.SelectorLookupTableData = (const unsigned char *)BlobStart; |
| 2130 | if (Record[0]) |
| 2131 | F.SelectorLookupTable |
| 2132 | = ASTSelectorLookupTable::Create( |
| 2133 | F.SelectorLookupTableData + Record[0], |
| 2134 | F.SelectorLookupTableData, |
| 2135 | ASTSelectorLookupTrait(*this, F)); |
| 2136 | TotalNumMethodPoolEntries += Record[1]; |
| 2137 | break; |
| 2138 | |
| 2139 | case REFERENCED_SELECTOR_POOL: |
| 2140 | if (!Record.empty()) { |
| 2141 | for (unsigned Idx = 0, N = Record.size() - 1; Idx < N; /* in loop */) { |
| 2142 | ReferencedSelectorsData.push_back(getGlobalSelectorID(F, |
| 2143 | Record[Idx++])); |
| 2144 | ReferencedSelectorsData.push_back(ReadSourceLocation(F, Record, Idx). |
| 2145 | getRawEncoding()); |
| 2146 | } |
| 2147 | } |
| 2148 | break; |
| 2149 | |
| 2150 | case PP_COUNTER_VALUE: |
| 2151 | if (!Record.empty() && Listener) |
| 2152 | Listener->ReadCounter(F, Record[0]); |
| 2153 | break; |
| 2154 | |
| 2155 | case FILE_SORTED_DECLS: |
| 2156 | F.FileSortedDecls = (const DeclID *)BlobStart; |
| 2157 | F.NumFileSortedDecls = Record[0]; |
| 2158 | break; |
| 2159 | |
| 2160 | case SOURCE_LOCATION_OFFSETS: { |
| 2161 | F.SLocEntryOffsets = (const uint32_t *)BlobStart; |
| 2162 | F.LocalNumSLocEntries = Record[0]; |
| 2163 | unsigned SLocSpaceSize = Record[1]; |
| 2164 | llvm::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) = |
| 2165 | SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries, |
| 2166 | SLocSpaceSize); |
| 2167 | // Make our entry in the range map. BaseID is negative and growing, so |
| 2168 | // we invert it. Because we invert it, though, we need the other end of |
| 2169 | // the range. |
| 2170 | unsigned RangeStart = |
| 2171 | unsigned(-F.SLocEntryBaseID) - F.LocalNumSLocEntries + 1; |
| 2172 | GlobalSLocEntryMap.insert(std::make_pair(RangeStart, &F)); |
| 2173 | F.FirstLoc = SourceLocation::getFromRawEncoding(F.SLocEntryBaseOffset); |
| 2174 | |
| 2175 | // SLocEntryBaseOffset is lower than MaxLoadedOffset and decreasing. |
| 2176 | assert((F.SLocEntryBaseOffset & (1U << 31U)) == 0); |
| 2177 | GlobalSLocOffsetMap.insert( |
| 2178 | std::make_pair(SourceManager::MaxLoadedOffset - F.SLocEntryBaseOffset |
| 2179 | - SLocSpaceSize,&F)); |
| 2180 | |
| 2181 | // Initialize the remapping table. |
| 2182 | // Invalid stays invalid. |
| 2183 | F.SLocRemap.insert(std::make_pair(0U, 0)); |
| 2184 | // This module. Base was 2 when being compiled. |
| 2185 | F.SLocRemap.insert(std::make_pair(2U, |
| 2186 | static_cast<int>(F.SLocEntryBaseOffset - 2))); |
| 2187 | |
| 2188 | TotalNumSLocEntries += F.LocalNumSLocEntries; |
| 2189 | break; |
| 2190 | } |
| 2191 | |
| 2192 | case MODULE_OFFSET_MAP: { |
| 2193 | // Additional remapping information. |
| 2194 | const unsigned char *Data = (const unsigned char*)BlobStart; |
| 2195 | const unsigned char *DataEnd = Data + BlobLen; |
| 2196 | |
| 2197 | // Continuous range maps we may be updating in our module. |
| 2198 | ContinuousRangeMap<uint32_t, int, 2>::Builder SLocRemap(F.SLocRemap); |
| 2199 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2200 | IdentifierRemap(F.IdentifierRemap); |
| 2201 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2202 | MacroRemap(F.MacroRemap); |
| 2203 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2204 | PreprocessedEntityRemap(F.PreprocessedEntityRemap); |
| 2205 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2206 | SubmoduleRemap(F.SubmoduleRemap); |
| 2207 | ContinuousRangeMap<uint32_t, int, 2>::Builder |
| 2208 | SelectorRemap(F.SelectorRemap); |
| 2209 | ContinuousRangeMap<uint32_t, int, 2>::Builder DeclRemap(F.DeclRemap); |
| 2210 | ContinuousRangeMap<uint32_t, int, 2>::Builder TypeRemap(F.TypeRemap); |
| 2211 | |
| 2212 | while(Data < DataEnd) { |
| 2213 | uint16_t Len = io::ReadUnalignedLE16(Data); |
| 2214 | StringRef Name = StringRef((const char*)Data, Len); |
| 2215 | Data += Len; |
| 2216 | ModuleFile *OM = ModuleMgr.lookup(Name); |
| 2217 | if (!OM) { |
| 2218 | Error("SourceLocation remap refers to unknown module"); |
| 2219 | return true; |
| 2220 | } |
| 2221 | |
| 2222 | uint32_t SLocOffset = io::ReadUnalignedLE32(Data); |
| 2223 | uint32_t IdentifierIDOffset = io::ReadUnalignedLE32(Data); |
| 2224 | uint32_t MacroIDOffset = io::ReadUnalignedLE32(Data); |
| 2225 | uint32_t PreprocessedEntityIDOffset = io::ReadUnalignedLE32(Data); |
| 2226 | uint32_t SubmoduleIDOffset = io::ReadUnalignedLE32(Data); |
| 2227 | uint32_t SelectorIDOffset = io::ReadUnalignedLE32(Data); |
| 2228 | uint32_t DeclIDOffset = io::ReadUnalignedLE32(Data); |
| 2229 | uint32_t TypeIndexOffset = io::ReadUnalignedLE32(Data); |
| 2230 | |
| 2231 | // Source location offset is mapped to OM->SLocEntryBaseOffset. |
| 2232 | SLocRemap.insert(std::make_pair(SLocOffset, |
| 2233 | static_cast<int>(OM->SLocEntryBaseOffset - SLocOffset))); |
| 2234 | IdentifierRemap.insert( |
| 2235 | std::make_pair(IdentifierIDOffset, |
| 2236 | OM->BaseIdentifierID - IdentifierIDOffset)); |
| 2237 | MacroRemap.insert(std::make_pair(MacroIDOffset, |
| 2238 | OM->BaseMacroID - MacroIDOffset)); |
| 2239 | PreprocessedEntityRemap.insert( |
| 2240 | std::make_pair(PreprocessedEntityIDOffset, |
| 2241 | OM->BasePreprocessedEntityID - PreprocessedEntityIDOffset)); |
| 2242 | SubmoduleRemap.insert(std::make_pair(SubmoduleIDOffset, |
| 2243 | OM->BaseSubmoduleID - SubmoduleIDOffset)); |
| 2244 | SelectorRemap.insert(std::make_pair(SelectorIDOffset, |
| 2245 | OM->BaseSelectorID - SelectorIDOffset)); |
| 2246 | DeclRemap.insert(std::make_pair(DeclIDOffset, |
| 2247 | OM->BaseDeclID - DeclIDOffset)); |
| 2248 | |
| 2249 | TypeRemap.insert(std::make_pair(TypeIndexOffset, |
| 2250 | OM->BaseTypeIndex - TypeIndexOffset)); |
| 2251 | |
| 2252 | // Global -> local mappings. |
| 2253 | F.GlobalToLocalDeclIDs[OM] = DeclIDOffset; |
| 2254 | } |
| 2255 | break; |
| 2256 | } |
| 2257 | |
| 2258 | case SOURCE_MANAGER_LINE_TABLE: |
| 2259 | if (ParseLineTable(F, Record)) |
| 2260 | return true; |
| 2261 | break; |
| 2262 | |
| 2263 | case SOURCE_LOCATION_PRELOADS: { |
| 2264 | // Need to transform from the local view (1-based IDs) to the global view, |
| 2265 | // which is based off F.SLocEntryBaseID. |
| 2266 | if (!F.PreloadSLocEntries.empty()) { |
| 2267 | Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file"); |
| 2268 | return true; |
| 2269 | } |
| 2270 | |
| 2271 | F.PreloadSLocEntries.swap(Record); |
| 2272 | break; |
| 2273 | } |
| 2274 | |
| 2275 | case EXT_VECTOR_DECLS: |
| 2276 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2277 | ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I])); |
| 2278 | break; |
| 2279 | |
| 2280 | case VTABLE_USES: |
| 2281 | if (Record.size() % 3 != 0) { |
| 2282 | Error("Invalid VTABLE_USES record"); |
| 2283 | return true; |
| 2284 | } |
| 2285 | |
| 2286 | // Later tables overwrite earlier ones. |
| 2287 | // FIXME: Modules will have some trouble with this. This is clearly not |
| 2288 | // the right way to do this. |
| 2289 | VTableUses.clear(); |
| 2290 | |
| 2291 | for (unsigned Idx = 0, N = Record.size(); Idx != N; /* In loop */) { |
| 2292 | VTableUses.push_back(getGlobalDeclID(F, Record[Idx++])); |
| 2293 | VTableUses.push_back( |
| 2294 | ReadSourceLocation(F, Record, Idx).getRawEncoding()); |
| 2295 | VTableUses.push_back(Record[Idx++]); |
| 2296 | } |
| 2297 | break; |
| 2298 | |
| 2299 | case DYNAMIC_CLASSES: |
| 2300 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2301 | DynamicClasses.push_back(getGlobalDeclID(F, Record[I])); |
| 2302 | break; |
| 2303 | |
| 2304 | case PENDING_IMPLICIT_INSTANTIATIONS: |
| 2305 | if (PendingInstantiations.size() % 2 != 0) { |
| 2306 | Error("Invalid existing PendingInstantiations"); |
| 2307 | return true; |
| 2308 | } |
| 2309 | |
| 2310 | if (Record.size() % 2 != 0) { |
| 2311 | Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block"); |
| 2312 | return true; |
| 2313 | } |
| 2314 | |
| 2315 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { |
| 2316 | PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++])); |
| 2317 | PendingInstantiations.push_back( |
| 2318 | ReadSourceLocation(F, Record, I).getRawEncoding()); |
| 2319 | } |
| 2320 | break; |
| 2321 | |
| 2322 | case SEMA_DECL_REFS: |
| 2323 | // Later tables overwrite earlier ones. |
| 2324 | // FIXME: Modules will have some trouble with this. |
| 2325 | SemaDeclRefs.clear(); |
| 2326 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2327 | SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I])); |
| 2328 | break; |
| 2329 | |
| 2330 | case PPD_ENTITIES_OFFSETS: { |
| 2331 | F.PreprocessedEntityOffsets = (const PPEntityOffset *)BlobStart; |
| 2332 | assert(BlobLen % sizeof(PPEntityOffset) == 0); |
| 2333 | F.NumPreprocessedEntities = BlobLen / sizeof(PPEntityOffset); |
| 2334 | |
| 2335 | unsigned LocalBasePreprocessedEntityID = Record[0]; |
| 2336 | |
| 2337 | unsigned StartingID; |
| 2338 | if (!PP.getPreprocessingRecord()) |
| 2339 | PP.createPreprocessingRecord(); |
| 2340 | if (!PP.getPreprocessingRecord()->getExternalSource()) |
| 2341 | PP.getPreprocessingRecord()->SetExternalSource(*this); |
| 2342 | StartingID |
| 2343 | = PP.getPreprocessingRecord() |
| 2344 | ->allocateLoadedEntities(F.NumPreprocessedEntities); |
| 2345 | F.BasePreprocessedEntityID = StartingID; |
| 2346 | |
| 2347 | if (F.NumPreprocessedEntities > 0) { |
| 2348 | // Introduce the global -> local mapping for preprocessed entities in |
| 2349 | // this module. |
| 2350 | GlobalPreprocessedEntityMap.insert(std::make_pair(StartingID, &F)); |
| 2351 | |
| 2352 | // Introduce the local -> global mapping for preprocessed entities in |
| 2353 | // this module. |
| 2354 | F.PreprocessedEntityRemap.insertOrReplace( |
| 2355 | std::make_pair(LocalBasePreprocessedEntityID, |
| 2356 | F.BasePreprocessedEntityID - LocalBasePreprocessedEntityID)); |
| 2357 | } |
| 2358 | |
| 2359 | break; |
| 2360 | } |
| 2361 | |
| 2362 | case DECL_UPDATE_OFFSETS: { |
| 2363 | if (Record.size() % 2 != 0) { |
| 2364 | Error("invalid DECL_UPDATE_OFFSETS block in AST file"); |
| 2365 | return true; |
| 2366 | } |
| 2367 | for (unsigned I = 0, N = Record.size(); I != N; I += 2) |
| 2368 | DeclUpdateOffsets[getGlobalDeclID(F, Record[I])] |
| 2369 | .push_back(std::make_pair(&F, Record[I+1])); |
| 2370 | break; |
| 2371 | } |
| 2372 | |
| 2373 | case DECL_REPLACEMENTS: { |
| 2374 | if (Record.size() % 3 != 0) { |
| 2375 | Error("invalid DECL_REPLACEMENTS block in AST file"); |
| 2376 | return true; |
| 2377 | } |
| 2378 | for (unsigned I = 0, N = Record.size(); I != N; I += 3) |
| 2379 | ReplacedDecls[getGlobalDeclID(F, Record[I])] |
| 2380 | = ReplacedDeclInfo(&F, Record[I+1], Record[I+2]); |
| 2381 | break; |
| 2382 | } |
| 2383 | |
| 2384 | case OBJC_CATEGORIES_MAP: { |
| 2385 | if (F.LocalNumObjCCategoriesInMap != 0) { |
| 2386 | Error("duplicate OBJC_CATEGORIES_MAP record in AST file"); |
| 2387 | return true; |
| 2388 | } |
| 2389 | |
| 2390 | F.LocalNumObjCCategoriesInMap = Record[0]; |
| 2391 | F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)BlobStart; |
| 2392 | break; |
| 2393 | } |
| 2394 | |
| 2395 | case OBJC_CATEGORIES: |
| 2396 | F.ObjCCategories.swap(Record); |
| 2397 | break; |
| 2398 | |
| 2399 | case CXX_BASE_SPECIFIER_OFFSETS: { |
| 2400 | if (F.LocalNumCXXBaseSpecifiers != 0) { |
| 2401 | Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file"); |
| 2402 | return true; |
| 2403 | } |
| 2404 | |
| 2405 | F.LocalNumCXXBaseSpecifiers = Record[0]; |
| 2406 | F.CXXBaseSpecifiersOffsets = (const uint32_t *)BlobStart; |
| 2407 | NumCXXBaseSpecifiersLoaded += F.LocalNumCXXBaseSpecifiers; |
| 2408 | break; |
| 2409 | } |
| 2410 | |
| 2411 | case DIAG_PRAGMA_MAPPINGS: |
| 2412 | if (F.PragmaDiagMappings.empty()) |
| 2413 | F.PragmaDiagMappings.swap(Record); |
| 2414 | else |
| 2415 | F.PragmaDiagMappings.insert(F.PragmaDiagMappings.end(), |
| 2416 | Record.begin(), Record.end()); |
| 2417 | break; |
| 2418 | |
| 2419 | case CUDA_SPECIAL_DECL_REFS: |
| 2420 | // Later tables overwrite earlier ones. |
| 2421 | // FIXME: Modules will have trouble with this. |
| 2422 | CUDASpecialDeclRefs.clear(); |
| 2423 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2424 | CUDASpecialDeclRefs.push_back(getGlobalDeclID(F, Record[I])); |
| 2425 | break; |
| 2426 | |
| 2427 | case HEADER_SEARCH_TABLE: { |
| 2428 | F.HeaderFileInfoTableData = BlobStart; |
| 2429 | F.LocalNumHeaderFileInfos = Record[1]; |
| 2430 | F.HeaderFileFrameworkStrings = BlobStart + Record[2]; |
| 2431 | if (Record[0]) { |
| 2432 | F.HeaderFileInfoTable |
| 2433 | = HeaderFileInfoLookupTable::Create( |
| 2434 | (const unsigned char *)F.HeaderFileInfoTableData + Record[0], |
| 2435 | (const unsigned char *)F.HeaderFileInfoTableData, |
| 2436 | HeaderFileInfoTrait(*this, F, |
| 2437 | &PP.getHeaderSearchInfo(), |
| 2438 | BlobStart + Record[2])); |
| 2439 | |
| 2440 | PP.getHeaderSearchInfo().SetExternalSource(this); |
| 2441 | if (!PP.getHeaderSearchInfo().getExternalLookup()) |
| 2442 | PP.getHeaderSearchInfo().SetExternalLookup(this); |
| 2443 | } |
| 2444 | break; |
| 2445 | } |
| 2446 | |
| 2447 | case FP_PRAGMA_OPTIONS: |
| 2448 | // Later tables overwrite earlier ones. |
| 2449 | FPPragmaOptions.swap(Record); |
| 2450 | break; |
| 2451 | |
| 2452 | case OPENCL_EXTENSIONS: |
| 2453 | // Later tables overwrite earlier ones. |
| 2454 | OpenCLExtensions.swap(Record); |
| 2455 | break; |
| 2456 | |
| 2457 | case TENTATIVE_DEFINITIONS: |
| 2458 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2459 | TentativeDefinitions.push_back(getGlobalDeclID(F, Record[I])); |
| 2460 | break; |
| 2461 | |
| 2462 | case KNOWN_NAMESPACES: |
| 2463 | for (unsigned I = 0, N = Record.size(); I != N; ++I) |
| 2464 | KnownNamespaces.push_back(getGlobalDeclID(F, Record[I])); |
| 2465 | break; |
| 2466 | |
| 2467 | case IMPORTED_MODULES: { |
| 2468 | if (F.Kind != MK_Module) { |
| 2469 | // If we aren't loading a module (which has its own exports), make |
| 2470 | // all of the imported modules visible. |
| 2471 | // FIXME: Deal with macros-only imports. |
| 2472 | for (unsigned I = 0, N = Record.size(); I != N; ++I) { |
| 2473 | if (unsigned GlobalID = getGlobalSubmoduleID(F, Record[I])) |
| 2474 | ImportedModules.push_back(GlobalID); |
| 2475 | } |
| 2476 | } |
| 2477 | break; |
| 2478 | } |
| 2479 | |
| 2480 | case LOCAL_REDECLARATIONS: { |
| 2481 | F.RedeclarationChains.swap(Record); |
| 2482 | break; |
| 2483 | } |
| 2484 | |
| 2485 | case LOCAL_REDECLARATIONS_MAP: { |
| 2486 | if (F.LocalNumRedeclarationsInMap != 0) { |
| 2487 | Error("duplicate LOCAL_REDECLARATIONS_MAP record in AST file"); |
| 2488 | return true; |
| 2489 | } |
| 2490 | |
| 2491 | F.LocalNumRedeclarationsInMap = Record[0]; |
| 2492 | F.RedeclarationsMap = (const LocalRedeclarationsInfo *)BlobStart; |
| 2493 | break; |
| 2494 | } |
| 2495 | |
| 2496 | case MERGED_DECLARATIONS: { |
| 2497 | for (unsigned Idx = 0; Idx < Record.size(); /* increment in loop */) { |
| 2498 | GlobalDeclID CanonID = getGlobalDeclID(F, Record[Idx++]); |
| 2499 | SmallVectorImpl<GlobalDeclID> &Decls = StoredMergedDecls[CanonID]; |
| 2500 | for (unsigned N = Record[Idx++]; N > 0; --N) |
| 2501 | Decls.push_back(getGlobalDeclID(F, Record[Idx++])); |
| 2502 | } |
| 2503 | break; |
| 2504 | } |
| 2505 | |
| 2506 | case MACRO_OFFSET: { |
| 2507 | if (F.LocalNumMacros != 0) { |
| 2508 | Error("duplicate MACRO_OFFSET record in AST file"); |
| 2509 | return true; |
| 2510 | } |
| 2511 | F.MacroOffsets = (const uint32_t *)BlobStart; |
| 2512 | F.LocalNumMacros = Record[0]; |
| 2513 | unsigned LocalBaseMacroID = Record[1]; |
| 2514 | F.BaseMacroID = getTotalNumMacros(); |
| 2515 | |
| 2516 | if (F.LocalNumMacros > 0) { |
| 2517 | // Introduce the global -> local mapping for macros within this module. |
| 2518 | GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F)); |
| 2519 | |
| 2520 | // Introduce the local -> global mapping for macros within this module. |
| 2521 | F.MacroRemap.insertOrReplace( |
| 2522 | std::make_pair(LocalBaseMacroID, |
| 2523 | F.BaseMacroID - LocalBaseMacroID)); |
| 2524 | |
| 2525 | MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros); |
| 2526 | } |
| 2527 | break; |
| 2528 | } |
| 2529 | |
| 2530 | case MACRO_UPDATES: { |
| 2531 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { |
| 2532 | MacroID ID = getGlobalMacroID(F, Record[I++]); |
| 2533 | if (I == N) |
| 2534 | break; |
| 2535 | |
| 2536 | SourceLocation UndefLoc = ReadSourceLocation(F, Record, I); |
| 2537 | SubmoduleID SubmoduleID = getGlobalSubmoduleID(F, Record[I++]);; |
| 2538 | MacroUpdate Update; |
| 2539 | Update.UndefLoc = UndefLoc; |
| 2540 | MacroUpdates[ID].push_back(std::make_pair(SubmoduleID, Update)); |
| 2541 | } |
| 2542 | break; |
| 2543 | } |
| 2544 | } |
| 2545 | } |
| 2546 | Error("premature end of bitstream in AST file"); |
| 2547 | return true; |
| 2548 | } |
| 2549 | |
| 2550 | void ASTReader::makeNamesVisible(const HiddenNames &Names) { |
| 2551 | for (unsigned I = 0, N = Names.size(); I != N; ++I) { |
| 2552 | switch (Names[I].getKind()) { |
| 2553 | case HiddenName::Declaration: |
| 2554 | Names[I].getDecl()->Hidden = false; |
| 2555 | break; |
| 2556 | |
| 2557 | case HiddenName::MacroVisibility: { |
| 2558 | std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro(); |
| 2559 | Macro.second->setHidden(!Macro.second->isPublic()); |
| 2560 | if (Macro.second->isDefined()) { |
| 2561 | PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second); |
| 2562 | } |
| 2563 | break; |
| 2564 | } |
| 2565 | |
| 2566 | case HiddenName::MacroUndef: { |
| 2567 | std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro(); |
| 2568 | if (Macro.second->isDefined()) { |
| 2569 | Macro.second->setUndefLoc(Names[I].getMacroUndefLoc()); |
| 2570 | if (PPMutationListener *Listener = PP.getPPMutationListener()) |
| 2571 | Listener->UndefinedMacro(Macro.second); |
| 2572 | PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second); |
| 2573 | } |
| 2574 | break; |
| 2575 | } |
| 2576 | } |
| 2577 | } |
| 2578 | } |
| 2579 | |
| 2580 | void ASTReader::makeModuleVisible(Module *Mod, |
| 2581 | Module::NameVisibilityKind NameVisibility) { |
| 2582 | llvm::SmallPtrSet<Module *, 4> Visited; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2583 | SmallVector<Module *, 4> Stack; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2584 | Stack.push_back(Mod); |
| 2585 | while (!Stack.empty()) { |
| 2586 | Mod = Stack.back(); |
| 2587 | Stack.pop_back(); |
| 2588 | |
| 2589 | if (NameVisibility <= Mod->NameVisibility) { |
| 2590 | // This module already has this level of visibility (or greater), so |
| 2591 | // there is nothing more to do. |
| 2592 | continue; |
| 2593 | } |
| 2594 | |
| 2595 | if (!Mod->isAvailable()) { |
| 2596 | // Modules that aren't available cannot be made visible. |
| 2597 | continue; |
| 2598 | } |
| 2599 | |
| 2600 | // Update the module's name visibility. |
| 2601 | Mod->NameVisibility = NameVisibility; |
| 2602 | |
| 2603 | // If we've already deserialized any names from this module, |
| 2604 | // mark them as visible. |
| 2605 | HiddenNamesMapType::iterator Hidden = HiddenNamesMap.find(Mod); |
| 2606 | if (Hidden != HiddenNamesMap.end()) { |
| 2607 | makeNamesVisible(Hidden->second); |
| 2608 | HiddenNamesMap.erase(Hidden); |
| 2609 | } |
| 2610 | |
| 2611 | // Push any non-explicit submodules onto the stack to be marked as |
| 2612 | // visible. |
| 2613 | for (Module::submodule_iterator Sub = Mod->submodule_begin(), |
| 2614 | SubEnd = Mod->submodule_end(); |
| 2615 | Sub != SubEnd; ++Sub) { |
| 2616 | if (!(*Sub)->IsExplicit && Visited.insert(*Sub)) |
| 2617 | Stack.push_back(*Sub); |
| 2618 | } |
| 2619 | |
| 2620 | // Push any exported modules onto the stack to be marked as visible. |
| 2621 | bool AnyWildcard = false; |
| 2622 | bool UnrestrictedWildcard = false; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2623 | SmallVector<Module *, 4> WildcardRestrictions; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2624 | for (unsigned I = 0, N = Mod->Exports.size(); I != N; ++I) { |
| 2625 | Module *Exported = Mod->Exports[I].getPointer(); |
| 2626 | if (!Mod->Exports[I].getInt()) { |
| 2627 | // Export a named module directly; no wildcards involved. |
| 2628 | if (Visited.insert(Exported)) |
| 2629 | Stack.push_back(Exported); |
| 2630 | |
| 2631 | continue; |
| 2632 | } |
| 2633 | |
| 2634 | // Wildcard export: export all of the imported modules that match |
| 2635 | // the given pattern. |
| 2636 | AnyWildcard = true; |
| 2637 | if (UnrestrictedWildcard) |
| 2638 | continue; |
| 2639 | |
| 2640 | if (Module *Restriction = Mod->Exports[I].getPointer()) |
| 2641 | WildcardRestrictions.push_back(Restriction); |
| 2642 | else { |
| 2643 | WildcardRestrictions.clear(); |
| 2644 | UnrestrictedWildcard = true; |
| 2645 | } |
| 2646 | } |
| 2647 | |
| 2648 | // If there were any wildcards, push any imported modules that were |
| 2649 | // re-exported by the wildcard restriction. |
| 2650 | if (!AnyWildcard) |
| 2651 | continue; |
| 2652 | |
| 2653 | for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) { |
| 2654 | Module *Imported = Mod->Imports[I]; |
| 2655 | if (!Visited.insert(Imported)) |
| 2656 | continue; |
| 2657 | |
| 2658 | bool Acceptable = UnrestrictedWildcard; |
| 2659 | if (!Acceptable) { |
| 2660 | // Check whether this module meets one of the restrictions. |
| 2661 | for (unsigned R = 0, NR = WildcardRestrictions.size(); R != NR; ++R) { |
| 2662 | Module *Restriction = WildcardRestrictions[R]; |
| 2663 | if (Imported == Restriction || Imported->isSubModuleOf(Restriction)) { |
| 2664 | Acceptable = true; |
| 2665 | break; |
| 2666 | } |
| 2667 | } |
| 2668 | } |
| 2669 | |
| 2670 | if (!Acceptable) |
| 2671 | continue; |
| 2672 | |
| 2673 | Stack.push_back(Imported); |
| 2674 | } |
| 2675 | } |
| 2676 | } |
| 2677 | |
| 2678 | ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName, |
| 2679 | ModuleKind Type, |
| 2680 | SourceLocation ImportLoc, |
| 2681 | unsigned ClientLoadCapabilities) { |
| 2682 | // Bump the generation number. |
| 2683 | unsigned PreviousGeneration = CurrentGeneration++; |
| 2684 | |
| 2685 | unsigned NumModules = ModuleMgr.size(); |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2686 | SmallVector<ImportedModule, 4> Loaded; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2687 | switch(ASTReadResult ReadResult = ReadASTCore(FileName, Type, ImportLoc, |
| 2688 | /*ImportedBy=*/0, Loaded, |
| 2689 | ClientLoadCapabilities)) { |
| 2690 | case Failure: |
| 2691 | case OutOfDate: |
| 2692 | case VersionMismatch: |
| 2693 | case ConfigurationMismatch: |
| 2694 | case HadErrors: |
| 2695 | ModuleMgr.removeModules(ModuleMgr.begin() + NumModules, ModuleMgr.end()); |
| 2696 | return ReadResult; |
| 2697 | |
| 2698 | case Success: |
| 2699 | break; |
| 2700 | } |
| 2701 | |
| 2702 | // Here comes stuff that we only do once the entire chain is loaded. |
| 2703 | |
| 2704 | // Load the AST blocks of all of the modules that we loaded. |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2705 | for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(), |
| 2706 | MEnd = Loaded.end(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2707 | M != MEnd; ++M) { |
| 2708 | ModuleFile &F = *M->Mod; |
| 2709 | |
| 2710 | // Read the AST block. |
| 2711 | if (ReadASTBlock(F)) |
| 2712 | return Failure; |
| 2713 | |
| 2714 | // Once read, set the ModuleFile bit base offset and update the size in |
| 2715 | // bits of all files we've seen. |
| 2716 | F.GlobalBitOffset = TotalModulesSizeInBits; |
| 2717 | TotalModulesSizeInBits += F.SizeInBits; |
| 2718 | GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F)); |
| 2719 | |
| 2720 | // Preload SLocEntries. |
| 2721 | for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) { |
| 2722 | int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID; |
| 2723 | // Load it through the SourceManager and don't call ReadSLocEntry() |
| 2724 | // directly because the entry may have already been loaded in which case |
| 2725 | // calling ReadSLocEntry() directly would trigger an assertion in |
| 2726 | // SourceManager. |
| 2727 | SourceMgr.getLoadedSLocEntryByID(Index); |
| 2728 | } |
| 2729 | } |
| 2730 | |
| 2731 | // Setup the import locations. |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2732 | for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(), |
| 2733 | MEnd = Loaded.end(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2734 | M != MEnd; ++M) { |
| 2735 | ModuleFile &F = *M->Mod; |
| 2736 | if (!M->ImportedBy) |
| 2737 | F.ImportLoc = M->ImportLoc; |
| 2738 | else |
| 2739 | F.ImportLoc = ReadSourceLocation(*M->ImportedBy, |
| 2740 | M->ImportLoc.getRawEncoding()); |
| 2741 | } |
| 2742 | |
| 2743 | // Mark all of the identifiers in the identifier table as being out of date, |
| 2744 | // so that various accessors know to check the loaded modules when the |
| 2745 | // identifier is used. |
| 2746 | for (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(), |
| 2747 | IdEnd = PP.getIdentifierTable().end(); |
| 2748 | Id != IdEnd; ++Id) |
| 2749 | Id->second->setOutOfDate(true); |
| 2750 | |
| 2751 | // Resolve any unresolved module exports. |
| 2752 | for (unsigned I = 0, N = UnresolvedModuleImportExports.size(); I != N; ++I) { |
| 2753 | UnresolvedModuleImportExport &Unresolved = UnresolvedModuleImportExports[I]; |
| 2754 | SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID); |
| 2755 | Module *ResolvedMod = getSubmodule(GlobalID); |
| 2756 | |
| 2757 | if (Unresolved.IsImport) { |
| 2758 | if (ResolvedMod) |
| 2759 | Unresolved.Mod->Imports.push_back(ResolvedMod); |
| 2760 | continue; |
| 2761 | } |
| 2762 | |
| 2763 | if (ResolvedMod || Unresolved.IsWildcard) |
| 2764 | Unresolved.Mod->Exports.push_back( |
| 2765 | Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard)); |
| 2766 | } |
| 2767 | UnresolvedModuleImportExports.clear(); |
| 2768 | |
| 2769 | InitializeContext(); |
| 2770 | |
| 2771 | if (DeserializationListener) |
| 2772 | DeserializationListener->ReaderInitialized(this); |
| 2773 | |
| 2774 | ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule(); |
| 2775 | if (!PrimaryModule.OriginalSourceFileID.isInvalid()) { |
| 2776 | PrimaryModule.OriginalSourceFileID |
| 2777 | = FileID::get(PrimaryModule.SLocEntryBaseID |
| 2778 | + PrimaryModule.OriginalSourceFileID.getOpaqueValue() - 1); |
| 2779 | |
| 2780 | // If this AST file is a precompiled preamble, then set the |
| 2781 | // preamble file ID of the source manager to the file source file |
| 2782 | // from which the preamble was built. |
| 2783 | if (Type == MK_Preamble) { |
| 2784 | SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID); |
| 2785 | } else if (Type == MK_MainFile) { |
| 2786 | SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID); |
| 2787 | } |
| 2788 | } |
| 2789 | |
| 2790 | // For any Objective-C class definitions we have already loaded, make sure |
| 2791 | // that we load any additional categories. |
| 2792 | for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) { |
| 2793 | loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(), |
| 2794 | ObjCClassesLoaded[I], |
| 2795 | PreviousGeneration); |
| 2796 | } |
| 2797 | |
| 2798 | return Success; |
| 2799 | } |
| 2800 | |
| 2801 | ASTReader::ASTReadResult |
| 2802 | ASTReader::ReadASTCore(StringRef FileName, |
| 2803 | ModuleKind Type, |
| 2804 | SourceLocation ImportLoc, |
| 2805 | ModuleFile *ImportedBy, |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 2806 | SmallVectorImpl<ImportedModule> &Loaded, |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 2807 | unsigned ClientLoadCapabilities) { |
| 2808 | ModuleFile *M; |
| 2809 | bool NewModule; |
| 2810 | std::string ErrorStr; |
| 2811 | llvm::tie(M, NewModule) = ModuleMgr.addModule(FileName, Type, ImportLoc, |
| 2812 | ImportedBy, CurrentGeneration, |
| 2813 | ErrorStr); |
| 2814 | |
| 2815 | if (!M) { |
| 2816 | // We couldn't load the module. |
| 2817 | std::string Msg = "Unable to load module \"" + FileName.str() + "\": " |
| 2818 | + ErrorStr; |
| 2819 | Error(Msg); |
| 2820 | return Failure; |
| 2821 | } |
| 2822 | |
| 2823 | if (!NewModule) { |
| 2824 | // We've already loaded this module. |
| 2825 | return Success; |
| 2826 | } |
| 2827 | |
| 2828 | // FIXME: This seems rather a hack. Should CurrentDir be part of the |
| 2829 | // module? |
| 2830 | if (FileName != "-") { |
| 2831 | CurrentDir = llvm::sys::path::parent_path(FileName); |
| 2832 | if (CurrentDir.empty()) CurrentDir = "."; |
| 2833 | } |
| 2834 | |
| 2835 | ModuleFile &F = *M; |
| 2836 | llvm::BitstreamCursor &Stream = F.Stream; |
| 2837 | Stream.init(F.StreamFile); |
| 2838 | F.SizeInBits = F.Buffer->getBufferSize() * 8; |
| 2839 | |
| 2840 | // Sniff for the signature. |
| 2841 | if (Stream.Read(8) != 'C' || |
| 2842 | Stream.Read(8) != 'P' || |
| 2843 | Stream.Read(8) != 'C' || |
| 2844 | Stream.Read(8) != 'H') { |
| 2845 | Diag(diag::err_not_a_pch_file) << FileName; |
| 2846 | return Failure; |
| 2847 | } |
| 2848 | |
| 2849 | // This is used for compatibility with older PCH formats. |
| 2850 | bool HaveReadControlBlock = false; |
| 2851 | |
| 2852 | while (!Stream.AtEndOfStream()) { |
| 2853 | unsigned Code = Stream.ReadCode(); |
| 2854 | |
| 2855 | if (Code != llvm::bitc::ENTER_SUBBLOCK) { |
| 2856 | Error("invalid record at top-level of AST file"); |
| 2857 | return Failure; |
| 2858 | } |
| 2859 | |
| 2860 | unsigned BlockID = Stream.ReadSubBlockID(); |
| 2861 | |
| 2862 | // We only know the control subblock ID. |
| 2863 | switch (BlockID) { |
| 2864 | case llvm::bitc::BLOCKINFO_BLOCK_ID: |
| 2865 | if (Stream.ReadBlockInfoBlock()) { |
| 2866 | Error("malformed BlockInfoBlock in AST file"); |
| 2867 | return Failure; |
| 2868 | } |
| 2869 | break; |
| 2870 | case CONTROL_BLOCK_ID: |
| 2871 | HaveReadControlBlock = true; |
| 2872 | switch (ReadControlBlock(F, Loaded, ClientLoadCapabilities)) { |
| 2873 | case Success: |
| 2874 | break; |
| 2875 | |
| 2876 | case Failure: return Failure; |
| 2877 | case OutOfDate: return OutOfDate; |
| 2878 | case VersionMismatch: return VersionMismatch; |
| 2879 | case ConfigurationMismatch: return ConfigurationMismatch; |
| 2880 | case HadErrors: return HadErrors; |
| 2881 | } |
| 2882 | break; |
| 2883 | case AST_BLOCK_ID: |
| 2884 | if (!HaveReadControlBlock) { |
| 2885 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) |
| 2886 | Diag(diag::warn_pch_version_too_old); |
| 2887 | return VersionMismatch; |
| 2888 | } |
| 2889 | |
| 2890 | // Record that we've loaded this module. |
| 2891 | Loaded.push_back(ImportedModule(M, ImportedBy, ImportLoc)); |
| 2892 | return Success; |
| 2893 | |
| 2894 | default: |
| 2895 | if (Stream.SkipBlock()) { |
| 2896 | Error("malformed block record in AST file"); |
| 2897 | return Failure; |
| 2898 | } |
| 2899 | break; |
| 2900 | } |
| 2901 | } |
| 2902 | |
| 2903 | return Success; |
| 2904 | } |
| 2905 | |
| 2906 | void ASTReader::InitializeContext() { |
| 2907 | // If there's a listener, notify them that we "read" the translation unit. |
| 2908 | if (DeserializationListener) |
| 2909 | DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID, |
| 2910 | Context.getTranslationUnitDecl()); |
| 2911 | |
| 2912 | // Make sure we load the declaration update records for the translation unit, |
| 2913 | // if there are any. |
| 2914 | loadDeclUpdateRecords(PREDEF_DECL_TRANSLATION_UNIT_ID, |
| 2915 | Context.getTranslationUnitDecl()); |
| 2916 | |
| 2917 | // FIXME: Find a better way to deal with collisions between these |
| 2918 | // built-in types. Right now, we just ignore the problem. |
| 2919 | |
| 2920 | // Load the special types. |
| 2921 | if (SpecialTypes.size() >= NumSpecialTypeIDs) { |
| 2922 | if (unsigned String = SpecialTypes[SPECIAL_TYPE_CF_CONSTANT_STRING]) { |
| 2923 | if (!Context.CFConstantStringTypeDecl) |
| 2924 | Context.setCFConstantStringType(GetType(String)); |
| 2925 | } |
| 2926 | |
| 2927 | if (unsigned File = SpecialTypes[SPECIAL_TYPE_FILE]) { |
| 2928 | QualType FileType = GetType(File); |
| 2929 | if (FileType.isNull()) { |
| 2930 | Error("FILE type is NULL"); |
| 2931 | return; |
| 2932 | } |
| 2933 | |
| 2934 | if (!Context.FILEDecl) { |
| 2935 | if (const TypedefType *Typedef = FileType->getAs<TypedefType>()) |
| 2936 | Context.setFILEDecl(Typedef->getDecl()); |
| 2937 | else { |
| 2938 | const TagType *Tag = FileType->getAs<TagType>(); |
| 2939 | if (!Tag) { |
| 2940 | Error("Invalid FILE type in AST file"); |
| 2941 | return; |
| 2942 | } |
| 2943 | Context.setFILEDecl(Tag->getDecl()); |
| 2944 | } |
| 2945 | } |
| 2946 | } |
| 2947 | |
| 2948 | if (unsigned Jmp_buf = SpecialTypes[SPECIAL_TYPE_JMP_BUF]) { |
| 2949 | QualType Jmp_bufType = GetType(Jmp_buf); |
| 2950 | if (Jmp_bufType.isNull()) { |
| 2951 | Error("jmp_buf type is NULL"); |
| 2952 | return; |
| 2953 | } |
| 2954 | |
| 2955 | if (!Context.jmp_bufDecl) { |
| 2956 | if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>()) |
| 2957 | Context.setjmp_bufDecl(Typedef->getDecl()); |
| 2958 | else { |
| 2959 | const TagType *Tag = Jmp_bufType->getAs<TagType>(); |
| 2960 | if (!Tag) { |
| 2961 | Error("Invalid jmp_buf type in AST file"); |
| 2962 | return; |
| 2963 | } |
| 2964 | Context.setjmp_bufDecl(Tag->getDecl()); |
| 2965 | } |
| 2966 | } |
| 2967 | } |
| 2968 | |
| 2969 | if (unsigned Sigjmp_buf = SpecialTypes[SPECIAL_TYPE_SIGJMP_BUF]) { |
| 2970 | QualType Sigjmp_bufType = GetType(Sigjmp_buf); |
| 2971 | if (Sigjmp_bufType.isNull()) { |
| 2972 | Error("sigjmp_buf type is NULL"); |
| 2973 | return; |
| 2974 | } |
| 2975 | |
| 2976 | if (!Context.sigjmp_bufDecl) { |
| 2977 | if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>()) |
| 2978 | Context.setsigjmp_bufDecl(Typedef->getDecl()); |
| 2979 | else { |
| 2980 | const TagType *Tag = Sigjmp_bufType->getAs<TagType>(); |
| 2981 | assert(Tag && "Invalid sigjmp_buf type in AST file"); |
| 2982 | Context.setsigjmp_bufDecl(Tag->getDecl()); |
| 2983 | } |
| 2984 | } |
| 2985 | } |
| 2986 | |
| 2987 | if (unsigned ObjCIdRedef |
| 2988 | = SpecialTypes[SPECIAL_TYPE_OBJC_ID_REDEFINITION]) { |
| 2989 | if (Context.ObjCIdRedefinitionType.isNull()) |
| 2990 | Context.ObjCIdRedefinitionType = GetType(ObjCIdRedef); |
| 2991 | } |
| 2992 | |
| 2993 | if (unsigned ObjCClassRedef |
| 2994 | = SpecialTypes[SPECIAL_TYPE_OBJC_CLASS_REDEFINITION]) { |
| 2995 | if (Context.ObjCClassRedefinitionType.isNull()) |
| 2996 | Context.ObjCClassRedefinitionType = GetType(ObjCClassRedef); |
| 2997 | } |
| 2998 | |
| 2999 | if (unsigned ObjCSelRedef |
| 3000 | = SpecialTypes[SPECIAL_TYPE_OBJC_SEL_REDEFINITION]) { |
| 3001 | if (Context.ObjCSelRedefinitionType.isNull()) |
| 3002 | Context.ObjCSelRedefinitionType = GetType(ObjCSelRedef); |
| 3003 | } |
| 3004 | |
| 3005 | if (unsigned Ucontext_t = SpecialTypes[SPECIAL_TYPE_UCONTEXT_T]) { |
| 3006 | QualType Ucontext_tType = GetType(Ucontext_t); |
| 3007 | if (Ucontext_tType.isNull()) { |
| 3008 | Error("ucontext_t type is NULL"); |
| 3009 | return; |
| 3010 | } |
| 3011 | |
| 3012 | if (!Context.ucontext_tDecl) { |
| 3013 | if (const TypedefType *Typedef = Ucontext_tType->getAs<TypedefType>()) |
| 3014 | Context.setucontext_tDecl(Typedef->getDecl()); |
| 3015 | else { |
| 3016 | const TagType *Tag = Ucontext_tType->getAs<TagType>(); |
| 3017 | assert(Tag && "Invalid ucontext_t type in AST file"); |
| 3018 | Context.setucontext_tDecl(Tag->getDecl()); |
| 3019 | } |
| 3020 | } |
| 3021 | } |
| 3022 | } |
| 3023 | |
| 3024 | ReadPragmaDiagnosticMappings(Context.getDiagnostics()); |
| 3025 | |
| 3026 | // If there were any CUDA special declarations, deserialize them. |
| 3027 | if (!CUDASpecialDeclRefs.empty()) { |
| 3028 | assert(CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!"); |
| 3029 | Context.setcudaConfigureCallDecl( |
| 3030 | cast<FunctionDecl>(GetDecl(CUDASpecialDeclRefs[0]))); |
| 3031 | } |
| 3032 | |
| 3033 | // Re-export any modules that were imported by a non-module AST file. |
| 3034 | for (unsigned I = 0, N = ImportedModules.size(); I != N; ++I) { |
| 3035 | if (Module *Imported = getSubmodule(ImportedModules[I])) |
| 3036 | makeModuleVisible(Imported, Module::AllVisible); |
| 3037 | } |
| 3038 | ImportedModules.clear(); |
| 3039 | } |
| 3040 | |
| 3041 | void ASTReader::finalizeForWriting() { |
| 3042 | for (HiddenNamesMapType::iterator Hidden = HiddenNamesMap.begin(), |
| 3043 | HiddenEnd = HiddenNamesMap.end(); |
| 3044 | Hidden != HiddenEnd; ++Hidden) { |
| 3045 | makeNamesVisible(Hidden->second); |
| 3046 | } |
| 3047 | HiddenNamesMap.clear(); |
| 3048 | } |
| 3049 | |
| 3050 | /// \brief Retrieve the name of the original source file name |
| 3051 | /// directly from the AST file, without actually loading the AST |
| 3052 | /// file. |
| 3053 | std::string ASTReader::getOriginalSourceFile(const std::string &ASTFileName, |
| 3054 | FileManager &FileMgr, |
| 3055 | DiagnosticsEngine &Diags) { |
| 3056 | // Open the AST file. |
| 3057 | std::string ErrStr; |
| 3058 | OwningPtr<llvm::MemoryBuffer> Buffer; |
| 3059 | Buffer.reset(FileMgr.getBufferForFile(ASTFileName, &ErrStr)); |
| 3060 | if (!Buffer) { |
| 3061 | Diags.Report(diag::err_fe_unable_to_read_pch_file) << ASTFileName << ErrStr; |
| 3062 | return std::string(); |
| 3063 | } |
| 3064 | |
| 3065 | // Initialize the stream |
| 3066 | llvm::BitstreamReader StreamFile; |
| 3067 | llvm::BitstreamCursor Stream; |
| 3068 | StreamFile.init((const unsigned char *)Buffer->getBufferStart(), |
| 3069 | (const unsigned char *)Buffer->getBufferEnd()); |
| 3070 | Stream.init(StreamFile); |
| 3071 | |
| 3072 | // Sniff for the signature. |
| 3073 | if (Stream.Read(8) != 'C' || |
| 3074 | Stream.Read(8) != 'P' || |
| 3075 | Stream.Read(8) != 'C' || |
| 3076 | Stream.Read(8) != 'H') { |
| 3077 | Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName; |
| 3078 | return std::string(); |
| 3079 | } |
| 3080 | |
| 3081 | RecordData Record; |
| 3082 | while (!Stream.AtEndOfStream()) { |
| 3083 | unsigned Code = Stream.ReadCode(); |
| 3084 | |
| 3085 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 3086 | unsigned BlockID = Stream.ReadSubBlockID(); |
| 3087 | |
| 3088 | // We only know the AST subblock ID. |
| 3089 | switch (BlockID) { |
| 3090 | case CONTROL_BLOCK_ID: |
| 3091 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { |
| 3092 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; |
| 3093 | return std::string(); |
| 3094 | } |
| 3095 | break; |
| 3096 | |
| 3097 | default: |
| 3098 | if (Stream.SkipBlock()) { |
| 3099 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; |
| 3100 | return std::string(); |
| 3101 | } |
| 3102 | break; |
| 3103 | } |
| 3104 | continue; |
| 3105 | } |
| 3106 | |
| 3107 | if (Code == llvm::bitc::END_BLOCK) { |
| 3108 | if (Stream.ReadBlockEnd()) { |
| 3109 | Diags.Report(diag::err_fe_pch_error_at_end_block) << ASTFileName; |
| 3110 | return std::string(); |
| 3111 | } |
| 3112 | continue; |
| 3113 | } |
| 3114 | |
| 3115 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 3116 | Stream.ReadAbbrevRecord(); |
| 3117 | continue; |
| 3118 | } |
| 3119 | |
| 3120 | Record.clear(); |
| 3121 | const char *BlobStart = 0; |
| 3122 | unsigned BlobLen = 0; |
| 3123 | if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen) == ORIGINAL_FILE) |
| 3124 | return std::string(BlobStart, BlobLen); |
| 3125 | } |
| 3126 | |
| 3127 | return std::string(); |
| 3128 | } |
| 3129 | |
| 3130 | namespace { |
| 3131 | class SimplePCHValidator : public ASTReaderListener { |
| 3132 | const LangOptions &ExistingLangOpts; |
| 3133 | const TargetOptions &ExistingTargetOpts; |
| 3134 | const PreprocessorOptions &ExistingPPOpts; |
| 3135 | FileManager &FileMgr; |
| 3136 | |
| 3137 | public: |
| 3138 | SimplePCHValidator(const LangOptions &ExistingLangOpts, |
| 3139 | const TargetOptions &ExistingTargetOpts, |
| 3140 | const PreprocessorOptions &ExistingPPOpts, |
| 3141 | FileManager &FileMgr) |
| 3142 | : ExistingLangOpts(ExistingLangOpts), |
| 3143 | ExistingTargetOpts(ExistingTargetOpts), |
| 3144 | ExistingPPOpts(ExistingPPOpts), |
| 3145 | FileMgr(FileMgr) |
| 3146 | { |
| 3147 | } |
| 3148 | |
| 3149 | virtual bool ReadLanguageOptions(const LangOptions &LangOpts, |
| 3150 | bool Complain) { |
| 3151 | return checkLanguageOptions(ExistingLangOpts, LangOpts, 0); |
| 3152 | } |
| 3153 | virtual bool ReadTargetOptions(const TargetOptions &TargetOpts, |
| 3154 | bool Complain) { |
| 3155 | return checkTargetOptions(ExistingTargetOpts, TargetOpts, 0); |
| 3156 | } |
| 3157 | virtual bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, |
| 3158 | bool Complain, |
| 3159 | std::string &SuggestedPredefines) { |
| 3160 | return checkPreprocessorOptions(ExistingPPOpts, PPOpts, 0, FileMgr, |
| 3161 | SuggestedPredefines); |
| 3162 | } |
| 3163 | }; |
| 3164 | } |
| 3165 | |
| 3166 | bool ASTReader::readASTFileControlBlock(StringRef Filename, |
| 3167 | FileManager &FileMgr, |
| 3168 | ASTReaderListener &Listener) { |
| 3169 | // Open the AST file. |
| 3170 | std::string ErrStr; |
| 3171 | OwningPtr<llvm::MemoryBuffer> Buffer; |
| 3172 | Buffer.reset(FileMgr.getBufferForFile(Filename, &ErrStr)); |
| 3173 | if (!Buffer) { |
| 3174 | return true; |
| 3175 | } |
| 3176 | |
| 3177 | // Initialize the stream |
| 3178 | llvm::BitstreamReader StreamFile; |
| 3179 | llvm::BitstreamCursor Stream; |
| 3180 | StreamFile.init((const unsigned char *)Buffer->getBufferStart(), |
| 3181 | (const unsigned char *)Buffer->getBufferEnd()); |
| 3182 | Stream.init(StreamFile); |
| 3183 | |
| 3184 | // Sniff for the signature. |
| 3185 | if (Stream.Read(8) != 'C' || |
| 3186 | Stream.Read(8) != 'P' || |
| 3187 | Stream.Read(8) != 'C' || |
| 3188 | Stream.Read(8) != 'H') { |
| 3189 | return true; |
| 3190 | } |
| 3191 | |
| 3192 | RecordData Record; |
| 3193 | bool InControlBlock = false; |
| 3194 | while (!Stream.AtEndOfStream()) { |
| 3195 | unsigned Code = Stream.ReadCode(); |
| 3196 | |
| 3197 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 3198 | unsigned BlockID = Stream.ReadSubBlockID(); |
| 3199 | |
| 3200 | // We only know the control subblock ID. |
| 3201 | switch (BlockID) { |
| 3202 | case CONTROL_BLOCK_ID: |
| 3203 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { |
| 3204 | return true; |
| 3205 | } else { |
| 3206 | InControlBlock = true; |
| 3207 | } |
| 3208 | break; |
| 3209 | |
| 3210 | default: |
| 3211 | if (Stream.SkipBlock()) |
| 3212 | return true; |
| 3213 | break; |
| 3214 | } |
| 3215 | continue; |
| 3216 | } |
| 3217 | |
| 3218 | if (Code == llvm::bitc::END_BLOCK) { |
| 3219 | if (Stream.ReadBlockEnd()) { |
| 3220 | return true; |
| 3221 | } |
| 3222 | |
| 3223 | InControlBlock = false; |
| 3224 | continue; |
| 3225 | } |
| 3226 | |
| 3227 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 3228 | Stream.ReadAbbrevRecord(); |
| 3229 | continue; |
| 3230 | } |
| 3231 | |
| 3232 | Record.clear(); |
| 3233 | const char *BlobStart = 0; |
| 3234 | unsigned BlobLen = 0; |
| 3235 | unsigned RecCode = Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen); |
| 3236 | if (InControlBlock) { |
| 3237 | switch ((ControlRecordTypes)RecCode) { |
| 3238 | case METADATA: { |
| 3239 | if (Record[0] != VERSION_MAJOR) { |
| 3240 | return true; |
| 3241 | } |
| 3242 | |
| 3243 | const std::string &CurBranch = getClangFullRepositoryVersion(); |
| 3244 | StringRef ASTBranch(BlobStart, BlobLen); |
| 3245 | if (StringRef(CurBranch) != ASTBranch) |
| 3246 | return true; |
| 3247 | |
| 3248 | break; |
| 3249 | } |
| 3250 | case LANGUAGE_OPTIONS: |
| 3251 | if (ParseLanguageOptions(Record, false, Listener)) |
| 3252 | return true; |
| 3253 | break; |
| 3254 | |
| 3255 | case TARGET_OPTIONS: |
| 3256 | if (ParseTargetOptions(Record, false, Listener)) |
| 3257 | return true; |
| 3258 | break; |
| 3259 | |
| 3260 | case DIAGNOSTIC_OPTIONS: |
| 3261 | if (ParseDiagnosticOptions(Record, false, Listener)) |
| 3262 | return true; |
| 3263 | break; |
| 3264 | |
| 3265 | case FILE_SYSTEM_OPTIONS: |
| 3266 | if (ParseFileSystemOptions(Record, false, Listener)) |
| 3267 | return true; |
| 3268 | break; |
| 3269 | |
| 3270 | case HEADER_SEARCH_OPTIONS: |
| 3271 | if (ParseHeaderSearchOptions(Record, false, Listener)) |
| 3272 | return true; |
| 3273 | break; |
| 3274 | |
| 3275 | case PREPROCESSOR_OPTIONS: { |
| 3276 | std::string IgnoredSuggestedPredefines; |
| 3277 | if (ParsePreprocessorOptions(Record, false, Listener, |
| 3278 | IgnoredSuggestedPredefines)) |
| 3279 | return true; |
| 3280 | break; |
| 3281 | } |
| 3282 | |
| 3283 | default: |
| 3284 | // No other validation to perform. |
| 3285 | break; |
| 3286 | } |
| 3287 | } |
| 3288 | } |
| 3289 | |
| 3290 | return false; |
| 3291 | } |
| 3292 | |
| 3293 | |
| 3294 | bool ASTReader::isAcceptableASTFile(StringRef Filename, |
| 3295 | FileManager &FileMgr, |
| 3296 | const LangOptions &LangOpts, |
| 3297 | const TargetOptions &TargetOpts, |
| 3298 | const PreprocessorOptions &PPOpts) { |
| 3299 | SimplePCHValidator validator(LangOpts, TargetOpts, PPOpts, FileMgr); |
| 3300 | return !readASTFileControlBlock(Filename, FileMgr, validator); |
| 3301 | } |
| 3302 | |
| 3303 | bool ASTReader::ReadSubmoduleBlock(ModuleFile &F) { |
| 3304 | // Enter the submodule block. |
| 3305 | if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) { |
| 3306 | Error("malformed submodule block record in AST file"); |
| 3307 | return true; |
| 3308 | } |
| 3309 | |
| 3310 | ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap(); |
| 3311 | bool First = true; |
| 3312 | Module *CurrentModule = 0; |
| 3313 | RecordData Record; |
| 3314 | while (true) { |
| 3315 | unsigned Code = F.Stream.ReadCode(); |
| 3316 | if (Code == llvm::bitc::END_BLOCK) { |
| 3317 | if (F.Stream.ReadBlockEnd()) { |
| 3318 | Error("error at end of submodule block in AST file"); |
| 3319 | return true; |
| 3320 | } |
| 3321 | return false; |
| 3322 | } |
| 3323 | |
| 3324 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 3325 | // No known subblocks, always skip them. |
| 3326 | F.Stream.ReadSubBlockID(); |
| 3327 | if (F.Stream.SkipBlock()) { |
| 3328 | Error("malformed block record in AST file"); |
| 3329 | return true; |
| 3330 | } |
| 3331 | continue; |
| 3332 | } |
| 3333 | |
| 3334 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 3335 | F.Stream.ReadAbbrevRecord(); |
| 3336 | continue; |
| 3337 | } |
| 3338 | |
| 3339 | // Read a record. |
| 3340 | const char *BlobStart; |
| 3341 | unsigned BlobLen; |
| 3342 | Record.clear(); |
| 3343 | switch (F.Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen)) { |
| 3344 | default: // Default behavior: ignore. |
| 3345 | break; |
| 3346 | |
| 3347 | case SUBMODULE_DEFINITION: { |
| 3348 | if (First) { |
| 3349 | Error("missing submodule metadata record at beginning of block"); |
| 3350 | return true; |
| 3351 | } |
| 3352 | |
| 3353 | if (Record.size() < 7) { |
| 3354 | Error("malformed module definition"); |
| 3355 | return true; |
| 3356 | } |
| 3357 | |
| 3358 | StringRef Name(BlobStart, BlobLen); |
| 3359 | SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[0]); |
| 3360 | SubmoduleID Parent = getGlobalSubmoduleID(F, Record[1]); |
| 3361 | bool IsFramework = Record[2]; |
| 3362 | bool IsExplicit = Record[3]; |
| 3363 | bool IsSystem = Record[4]; |
| 3364 | bool InferSubmodules = Record[5]; |
| 3365 | bool InferExplicitSubmodules = Record[6]; |
| 3366 | bool InferExportWildcard = Record[7]; |
| 3367 | |
| 3368 | Module *ParentModule = 0; |
| 3369 | if (Parent) |
| 3370 | ParentModule = getSubmodule(Parent); |
| 3371 | |
| 3372 | // Retrieve this (sub)module from the module map, creating it if |
| 3373 | // necessary. |
| 3374 | CurrentModule = ModMap.findOrCreateModule(Name, ParentModule, |
| 3375 | IsFramework, |
| 3376 | IsExplicit).first; |
| 3377 | SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS; |
| 3378 | if (GlobalIndex >= SubmodulesLoaded.size() || |
| 3379 | SubmodulesLoaded[GlobalIndex]) { |
| 3380 | Error("too many submodules"); |
| 3381 | return true; |
| 3382 | } |
| 3383 | |
| 3384 | CurrentModule->setASTFile(F.File); |
| 3385 | CurrentModule->IsFromModuleFile = true; |
| 3386 | CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem; |
| 3387 | CurrentModule->InferSubmodules = InferSubmodules; |
| 3388 | CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules; |
| 3389 | CurrentModule->InferExportWildcard = InferExportWildcard; |
| 3390 | if (DeserializationListener) |
| 3391 | DeserializationListener->ModuleRead(GlobalID, CurrentModule); |
| 3392 | |
| 3393 | SubmodulesLoaded[GlobalIndex] = CurrentModule; |
Douglas Gregor | b6cbe51 | 2013-01-14 17:21:00 +0000 | [diff] [blame] | 3394 | |
| 3395 | // Clear out link libraries; the module file has them. |
| 3396 | CurrentModule->LinkLibraries.clear(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3397 | break; |
| 3398 | } |
| 3399 | |
| 3400 | case SUBMODULE_UMBRELLA_HEADER: { |
| 3401 | if (First) { |
| 3402 | Error("missing submodule metadata record at beginning of block"); |
| 3403 | return true; |
| 3404 | } |
| 3405 | |
| 3406 | if (!CurrentModule) |
| 3407 | break; |
| 3408 | |
| 3409 | StringRef FileName(BlobStart, BlobLen); |
| 3410 | if (const FileEntry *Umbrella = PP.getFileManager().getFile(FileName)) { |
| 3411 | if (!CurrentModule->getUmbrellaHeader()) |
| 3412 | ModMap.setUmbrellaHeader(CurrentModule, Umbrella); |
| 3413 | else if (CurrentModule->getUmbrellaHeader() != Umbrella) { |
| 3414 | Error("mismatched umbrella headers in submodule"); |
| 3415 | return true; |
| 3416 | } |
| 3417 | } |
| 3418 | break; |
| 3419 | } |
| 3420 | |
| 3421 | case SUBMODULE_HEADER: { |
| 3422 | if (First) { |
| 3423 | Error("missing submodule metadata record at beginning of block"); |
| 3424 | return true; |
| 3425 | } |
| 3426 | |
| 3427 | if (!CurrentModule) |
| 3428 | break; |
| 3429 | |
| 3430 | // FIXME: Be more lazy about this! |
| 3431 | StringRef FileName(BlobStart, BlobLen); |
| 3432 | if (const FileEntry *File = PP.getFileManager().getFile(FileName)) { |
| 3433 | if (std::find(CurrentModule->Headers.begin(), |
| 3434 | CurrentModule->Headers.end(), |
| 3435 | File) == CurrentModule->Headers.end()) |
| 3436 | ModMap.addHeader(CurrentModule, File, false); |
| 3437 | } |
| 3438 | break; |
| 3439 | } |
| 3440 | |
| 3441 | case SUBMODULE_EXCLUDED_HEADER: { |
| 3442 | if (First) { |
| 3443 | Error("missing submodule metadata record at beginning of block"); |
| 3444 | return true; |
| 3445 | } |
| 3446 | |
| 3447 | if (!CurrentModule) |
| 3448 | break; |
| 3449 | |
| 3450 | // FIXME: Be more lazy about this! |
| 3451 | StringRef FileName(BlobStart, BlobLen); |
| 3452 | if (const FileEntry *File = PP.getFileManager().getFile(FileName)) { |
| 3453 | if (std::find(CurrentModule->Headers.begin(), |
| 3454 | CurrentModule->Headers.end(), |
| 3455 | File) == CurrentModule->Headers.end()) |
| 3456 | ModMap.addHeader(CurrentModule, File, true); |
| 3457 | } |
| 3458 | break; |
| 3459 | } |
| 3460 | |
| 3461 | case SUBMODULE_TOPHEADER: { |
| 3462 | if (First) { |
| 3463 | Error("missing submodule metadata record at beginning of block"); |
| 3464 | return true; |
| 3465 | } |
| 3466 | |
| 3467 | if (!CurrentModule) |
| 3468 | break; |
| 3469 | |
| 3470 | // FIXME: Be more lazy about this! |
| 3471 | StringRef FileName(BlobStart, BlobLen); |
| 3472 | if (const FileEntry *File = PP.getFileManager().getFile(FileName)) |
| 3473 | CurrentModule->TopHeaders.insert(File); |
| 3474 | break; |
| 3475 | } |
| 3476 | |
| 3477 | case SUBMODULE_UMBRELLA_DIR: { |
| 3478 | if (First) { |
| 3479 | Error("missing submodule metadata record at beginning of block"); |
| 3480 | return true; |
| 3481 | } |
| 3482 | |
| 3483 | if (!CurrentModule) |
| 3484 | break; |
| 3485 | |
| 3486 | StringRef DirName(BlobStart, BlobLen); |
| 3487 | if (const DirectoryEntry *Umbrella |
| 3488 | = PP.getFileManager().getDirectory(DirName)) { |
| 3489 | if (!CurrentModule->getUmbrellaDir()) |
| 3490 | ModMap.setUmbrellaDir(CurrentModule, Umbrella); |
| 3491 | else if (CurrentModule->getUmbrellaDir() != Umbrella) { |
| 3492 | Error("mismatched umbrella directories in submodule"); |
| 3493 | return true; |
| 3494 | } |
| 3495 | } |
| 3496 | break; |
| 3497 | } |
| 3498 | |
| 3499 | case SUBMODULE_METADATA: { |
| 3500 | if (!First) { |
| 3501 | Error("submodule metadata record not at beginning of block"); |
| 3502 | return true; |
| 3503 | } |
| 3504 | First = false; |
| 3505 | |
| 3506 | F.BaseSubmoduleID = getTotalNumSubmodules(); |
| 3507 | F.LocalNumSubmodules = Record[0]; |
| 3508 | unsigned LocalBaseSubmoduleID = Record[1]; |
| 3509 | if (F.LocalNumSubmodules > 0) { |
| 3510 | // Introduce the global -> local mapping for submodules within this |
| 3511 | // module. |
| 3512 | GlobalSubmoduleMap.insert(std::make_pair(getTotalNumSubmodules()+1,&F)); |
| 3513 | |
| 3514 | // Introduce the local -> global mapping for submodules within this |
| 3515 | // module. |
| 3516 | F.SubmoduleRemap.insertOrReplace( |
| 3517 | std::make_pair(LocalBaseSubmoduleID, |
| 3518 | F.BaseSubmoduleID - LocalBaseSubmoduleID)); |
| 3519 | |
| 3520 | SubmodulesLoaded.resize(SubmodulesLoaded.size() + F.LocalNumSubmodules); |
| 3521 | } |
| 3522 | break; |
| 3523 | } |
| 3524 | |
| 3525 | case SUBMODULE_IMPORTS: { |
| 3526 | if (First) { |
| 3527 | Error("missing submodule metadata record at beginning of block"); |
| 3528 | return true; |
| 3529 | } |
| 3530 | |
| 3531 | if (!CurrentModule) |
| 3532 | break; |
| 3533 | |
| 3534 | for (unsigned Idx = 0; Idx != Record.size(); ++Idx) { |
| 3535 | UnresolvedModuleImportExport Unresolved; |
| 3536 | Unresolved.File = &F; |
| 3537 | Unresolved.Mod = CurrentModule; |
| 3538 | Unresolved.ID = Record[Idx]; |
| 3539 | Unresolved.IsImport = true; |
| 3540 | Unresolved.IsWildcard = false; |
| 3541 | UnresolvedModuleImportExports.push_back(Unresolved); |
| 3542 | } |
| 3543 | break; |
| 3544 | } |
| 3545 | |
| 3546 | case SUBMODULE_EXPORTS: { |
| 3547 | if (First) { |
| 3548 | Error("missing submodule metadata record at beginning of block"); |
| 3549 | return true; |
| 3550 | } |
| 3551 | |
| 3552 | if (!CurrentModule) |
| 3553 | break; |
| 3554 | |
| 3555 | for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) { |
| 3556 | UnresolvedModuleImportExport Unresolved; |
| 3557 | Unresolved.File = &F; |
| 3558 | Unresolved.Mod = CurrentModule; |
| 3559 | Unresolved.ID = Record[Idx]; |
| 3560 | Unresolved.IsImport = false; |
| 3561 | Unresolved.IsWildcard = Record[Idx + 1]; |
| 3562 | UnresolvedModuleImportExports.push_back(Unresolved); |
| 3563 | } |
| 3564 | |
| 3565 | // Once we've loaded the set of exports, there's no reason to keep |
| 3566 | // the parsed, unresolved exports around. |
| 3567 | CurrentModule->UnresolvedExports.clear(); |
| 3568 | break; |
| 3569 | } |
| 3570 | case SUBMODULE_REQUIRES: { |
| 3571 | if (First) { |
| 3572 | Error("missing submodule metadata record at beginning of block"); |
| 3573 | return true; |
| 3574 | } |
| 3575 | |
| 3576 | if (!CurrentModule) |
| 3577 | break; |
| 3578 | |
| 3579 | CurrentModule->addRequirement(StringRef(BlobStart, BlobLen), |
| 3580 | Context.getLangOpts(), |
| 3581 | Context.getTargetInfo()); |
| 3582 | break; |
| 3583 | } |
Douglas Gregor | b6cbe51 | 2013-01-14 17:21:00 +0000 | [diff] [blame] | 3584 | |
| 3585 | case SUBMODULE_LINK_LIBRARY: |
| 3586 | if (First) { |
| 3587 | Error("missing submodule metadata record at beginning of block"); |
| 3588 | return true; |
| 3589 | } |
| 3590 | |
| 3591 | if (!CurrentModule) |
| 3592 | break; |
| 3593 | |
| 3594 | CurrentModule->LinkLibraries.push_back( |
| 3595 | Module::LinkLibrary(StringRef(BlobStart, BlobLen), |
| 3596 | Record[0])); |
| 3597 | break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 3598 | } |
| 3599 | } |
| 3600 | } |
| 3601 | |
| 3602 | /// \brief Parse the record that corresponds to a LangOptions data |
| 3603 | /// structure. |
| 3604 | /// |
| 3605 | /// This routine parses the language options from the AST file and then gives |
| 3606 | /// them to the AST listener if one is set. |
| 3607 | /// |
| 3608 | /// \returns true if the listener deems the file unacceptable, false otherwise. |
| 3609 | bool ASTReader::ParseLanguageOptions(const RecordData &Record, |
| 3610 | bool Complain, |
| 3611 | ASTReaderListener &Listener) { |
| 3612 | LangOptions LangOpts; |
| 3613 | unsigned Idx = 0; |
| 3614 | #define LANGOPT(Name, Bits, Default, Description) \ |
| 3615 | LangOpts.Name = Record[Idx++]; |
| 3616 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
| 3617 | LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++])); |
| 3618 | #include "clang/Basic/LangOptions.def" |
| 3619 | |
| 3620 | ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++]; |
| 3621 | VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx); |
| 3622 | LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion); |
| 3623 | |
| 3624 | unsigned Length = Record[Idx++]; |
| 3625 | LangOpts.CurrentModule.assign(Record.begin() + Idx, |
| 3626 | Record.begin() + Idx + Length); |
| 3627 | return Listener.ReadLanguageOptions(LangOpts, Complain); |
| 3628 | } |
| 3629 | |
| 3630 | bool ASTReader::ParseTargetOptions(const RecordData &Record, |
| 3631 | bool Complain, |
| 3632 | ASTReaderListener &Listener) { |
| 3633 | unsigned Idx = 0; |
| 3634 | TargetOptions TargetOpts; |
| 3635 | TargetOpts.Triple = ReadString(Record, Idx); |
| 3636 | TargetOpts.CPU = ReadString(Record, Idx); |
| 3637 | TargetOpts.ABI = ReadString(Record, Idx); |
| 3638 | TargetOpts.CXXABI = ReadString(Record, Idx); |
| 3639 | TargetOpts.LinkerVersion = ReadString(Record, Idx); |
| 3640 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3641 | TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx)); |
| 3642 | } |
| 3643 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3644 | TargetOpts.Features.push_back(ReadString(Record, Idx)); |
| 3645 | } |
| 3646 | |
| 3647 | return Listener.ReadTargetOptions(TargetOpts, Complain); |
| 3648 | } |
| 3649 | |
| 3650 | bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain, |
| 3651 | ASTReaderListener &Listener) { |
| 3652 | DiagnosticOptions DiagOpts; |
| 3653 | unsigned Idx = 0; |
| 3654 | #define DIAGOPT(Name, Bits, Default) DiagOpts.Name = Record[Idx++]; |
| 3655 | #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ |
| 3656 | DiagOpts.set##Name(static_cast<Type>(Record[Idx++])); |
| 3657 | #include "clang/Basic/DiagnosticOptions.def" |
| 3658 | |
| 3659 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3660 | DiagOpts.Warnings.push_back(ReadString(Record, Idx)); |
| 3661 | } |
| 3662 | |
| 3663 | return Listener.ReadDiagnosticOptions(DiagOpts, Complain); |
| 3664 | } |
| 3665 | |
| 3666 | bool ASTReader::ParseFileSystemOptions(const RecordData &Record, bool Complain, |
| 3667 | ASTReaderListener &Listener) { |
| 3668 | FileSystemOptions FSOpts; |
| 3669 | unsigned Idx = 0; |
| 3670 | FSOpts.WorkingDir = ReadString(Record, Idx); |
| 3671 | return Listener.ReadFileSystemOptions(FSOpts, Complain); |
| 3672 | } |
| 3673 | |
| 3674 | bool ASTReader::ParseHeaderSearchOptions(const RecordData &Record, |
| 3675 | bool Complain, |
| 3676 | ASTReaderListener &Listener) { |
| 3677 | HeaderSearchOptions HSOpts; |
| 3678 | unsigned Idx = 0; |
| 3679 | HSOpts.Sysroot = ReadString(Record, Idx); |
| 3680 | |
| 3681 | // Include entries. |
| 3682 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3683 | std::string Path = ReadString(Record, Idx); |
| 3684 | frontend::IncludeDirGroup Group |
| 3685 | = static_cast<frontend::IncludeDirGroup>(Record[Idx++]); |
| 3686 | bool IsUserSupplied = Record[Idx++]; |
| 3687 | bool IsFramework = Record[Idx++]; |
| 3688 | bool IgnoreSysRoot = Record[Idx++]; |
| 3689 | bool IsInternal = Record[Idx++]; |
| 3690 | bool ImplicitExternC = Record[Idx++]; |
| 3691 | HSOpts.UserEntries.push_back( |
| 3692 | HeaderSearchOptions::Entry(Path, Group, IsUserSupplied, IsFramework, |
| 3693 | IgnoreSysRoot, IsInternal, ImplicitExternC)); |
| 3694 | } |
| 3695 | |
| 3696 | // System header prefixes. |
| 3697 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3698 | std::string Prefix = ReadString(Record, Idx); |
| 3699 | bool IsSystemHeader = Record[Idx++]; |
| 3700 | HSOpts.SystemHeaderPrefixes.push_back( |
| 3701 | HeaderSearchOptions::SystemHeaderPrefix(Prefix, IsSystemHeader)); |
| 3702 | } |
| 3703 | |
| 3704 | HSOpts.ResourceDir = ReadString(Record, Idx); |
| 3705 | HSOpts.ModuleCachePath = ReadString(Record, Idx); |
| 3706 | HSOpts.DisableModuleHash = Record[Idx++]; |
| 3707 | HSOpts.UseBuiltinIncludes = Record[Idx++]; |
| 3708 | HSOpts.UseStandardSystemIncludes = Record[Idx++]; |
| 3709 | HSOpts.UseStandardCXXIncludes = Record[Idx++]; |
| 3710 | HSOpts.UseLibcxx = Record[Idx++]; |
| 3711 | |
| 3712 | return Listener.ReadHeaderSearchOptions(HSOpts, Complain); |
| 3713 | } |
| 3714 | |
| 3715 | bool ASTReader::ParsePreprocessorOptions(const RecordData &Record, |
| 3716 | bool Complain, |
| 3717 | ASTReaderListener &Listener, |
| 3718 | std::string &SuggestedPredefines) { |
| 3719 | PreprocessorOptions PPOpts; |
| 3720 | unsigned Idx = 0; |
| 3721 | |
| 3722 | // Macro definitions/undefs |
| 3723 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3724 | std::string Macro = ReadString(Record, Idx); |
| 3725 | bool IsUndef = Record[Idx++]; |
| 3726 | PPOpts.Macros.push_back(std::make_pair(Macro, IsUndef)); |
| 3727 | } |
| 3728 | |
| 3729 | // Includes |
| 3730 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3731 | PPOpts.Includes.push_back(ReadString(Record, Idx)); |
| 3732 | } |
| 3733 | |
| 3734 | // Macro Includes |
| 3735 | for (unsigned N = Record[Idx++]; N; --N) { |
| 3736 | PPOpts.MacroIncludes.push_back(ReadString(Record, Idx)); |
| 3737 | } |
| 3738 | |
| 3739 | PPOpts.UsePredefines = Record[Idx++]; |
| 3740 | PPOpts.ImplicitPCHInclude = ReadString(Record, Idx); |
| 3741 | PPOpts.ImplicitPTHInclude = ReadString(Record, Idx); |
| 3742 | PPOpts.ObjCXXARCStandardLibrary = |
| 3743 | static_cast<ObjCXXARCStandardLibraryKind>(Record[Idx++]); |
| 3744 | SuggestedPredefines.clear(); |
| 3745 | return Listener.ReadPreprocessorOptions(PPOpts, Complain, |
| 3746 | SuggestedPredefines); |
| 3747 | } |
| 3748 | |
| 3749 | std::pair<ModuleFile *, unsigned> |
| 3750 | ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) { |
| 3751 | GlobalPreprocessedEntityMapType::iterator |
| 3752 | I = GlobalPreprocessedEntityMap.find(GlobalIndex); |
| 3753 | assert(I != GlobalPreprocessedEntityMap.end() && |
| 3754 | "Corrupted global preprocessed entity map"); |
| 3755 | ModuleFile *M = I->second; |
| 3756 | unsigned LocalIndex = GlobalIndex - M->BasePreprocessedEntityID; |
| 3757 | return std::make_pair(M, LocalIndex); |
| 3758 | } |
| 3759 | |
| 3760 | std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> |
| 3761 | ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const { |
| 3762 | if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord()) |
| 3763 | return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID, |
| 3764 | Mod.NumPreprocessedEntities); |
| 3765 | |
| 3766 | return std::make_pair(PreprocessingRecord::iterator(), |
| 3767 | PreprocessingRecord::iterator()); |
| 3768 | } |
| 3769 | |
| 3770 | std::pair<ASTReader::ModuleDeclIterator, ASTReader::ModuleDeclIterator> |
| 3771 | ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) { |
| 3772 | return std::make_pair(ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls), |
| 3773 | ModuleDeclIterator(this, &Mod, |
| 3774 | Mod.FileSortedDecls + Mod.NumFileSortedDecls)); |
| 3775 | } |
| 3776 | |
| 3777 | PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) { |
| 3778 | PreprocessedEntityID PPID = Index+1; |
| 3779 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); |
| 3780 | ModuleFile &M = *PPInfo.first; |
| 3781 | unsigned LocalIndex = PPInfo.second; |
| 3782 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex]; |
| 3783 | |
| 3784 | SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor); |
| 3785 | M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset); |
| 3786 | |
| 3787 | unsigned Code = M.PreprocessorDetailCursor.ReadCode(); |
| 3788 | switch (Code) { |
| 3789 | case llvm::bitc::END_BLOCK: |
| 3790 | return 0; |
| 3791 | |
| 3792 | case llvm::bitc::ENTER_SUBBLOCK: |
| 3793 | Error("unexpected subblock record in preprocessor detail block"); |
| 3794 | return 0; |
| 3795 | |
| 3796 | case llvm::bitc::DEFINE_ABBREV: |
| 3797 | Error("unexpected abbrevation record in preprocessor detail block"); |
| 3798 | return 0; |
| 3799 | |
| 3800 | default: |
| 3801 | break; |
| 3802 | } |
| 3803 | |
| 3804 | if (!PP.getPreprocessingRecord()) { |
| 3805 | Error("no preprocessing record"); |
| 3806 | return 0; |
| 3807 | } |
| 3808 | |
| 3809 | // Read the record. |
| 3810 | SourceRange Range(ReadSourceLocation(M, PPOffs.Begin), |
| 3811 | ReadSourceLocation(M, PPOffs.End)); |
| 3812 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); |
| 3813 | const char *BlobStart = 0; |
| 3814 | unsigned BlobLen = 0; |
| 3815 | RecordData Record; |
| 3816 | PreprocessorDetailRecordTypes RecType = |
| 3817 | (PreprocessorDetailRecordTypes)M.PreprocessorDetailCursor.ReadRecord( |
| 3818 | Code, Record, BlobStart, BlobLen); |
| 3819 | switch (RecType) { |
| 3820 | case PPD_MACRO_EXPANSION: { |
| 3821 | bool isBuiltin = Record[0]; |
| 3822 | IdentifierInfo *Name = 0; |
| 3823 | MacroDefinition *Def = 0; |
| 3824 | if (isBuiltin) |
| 3825 | Name = getLocalIdentifier(M, Record[1]); |
| 3826 | else { |
| 3827 | PreprocessedEntityID |
| 3828 | GlobalID = getGlobalPreprocessedEntityID(M, Record[1]); |
| 3829 | Def =cast<MacroDefinition>(PPRec.getLoadedPreprocessedEntity(GlobalID-1)); |
| 3830 | } |
| 3831 | |
| 3832 | MacroExpansion *ME; |
| 3833 | if (isBuiltin) |
| 3834 | ME = new (PPRec) MacroExpansion(Name, Range); |
| 3835 | else |
| 3836 | ME = new (PPRec) MacroExpansion(Def, Range); |
| 3837 | |
| 3838 | return ME; |
| 3839 | } |
| 3840 | |
| 3841 | case PPD_MACRO_DEFINITION: { |
| 3842 | // Decode the identifier info and then check again; if the macro is |
| 3843 | // still defined and associated with the identifier, |
| 3844 | IdentifierInfo *II = getLocalIdentifier(M, Record[0]); |
| 3845 | MacroDefinition *MD |
| 3846 | = new (PPRec) MacroDefinition(II, Range); |
| 3847 | |
| 3848 | if (DeserializationListener) |
| 3849 | DeserializationListener->MacroDefinitionRead(PPID, MD); |
| 3850 | |
| 3851 | return MD; |
| 3852 | } |
| 3853 | |
| 3854 | case PPD_INCLUSION_DIRECTIVE: { |
| 3855 | const char *FullFileNameStart = BlobStart + Record[0]; |
| 3856 | StringRef FullFileName(FullFileNameStart, BlobLen - Record[0]); |
| 3857 | const FileEntry *File = 0; |
| 3858 | if (!FullFileName.empty()) |
| 3859 | File = PP.getFileManager().getFile(FullFileName); |
| 3860 | |
| 3861 | // FIXME: Stable encoding |
| 3862 | InclusionDirective::InclusionKind Kind |
| 3863 | = static_cast<InclusionDirective::InclusionKind>(Record[2]); |
| 3864 | InclusionDirective *ID |
| 3865 | = new (PPRec) InclusionDirective(PPRec, Kind, |
| 3866 | StringRef(BlobStart, Record[0]), |
| 3867 | Record[1], Record[3], |
| 3868 | File, |
| 3869 | Range); |
| 3870 | return ID; |
| 3871 | } |
| 3872 | } |
| 3873 | |
| 3874 | llvm_unreachable("Invalid PreprocessorDetailRecordTypes"); |
| 3875 | } |
| 3876 | |
| 3877 | /// \brief \arg SLocMapI points at a chunk of a module that contains no |
| 3878 | /// preprocessed entities or the entities it contains are not the ones we are |
| 3879 | /// looking for. Find the next module that contains entities and return the ID |
| 3880 | /// of the first entry. |
| 3881 | PreprocessedEntityID ASTReader::findNextPreprocessedEntity( |
| 3882 | GlobalSLocOffsetMapType::const_iterator SLocMapI) const { |
| 3883 | ++SLocMapI; |
| 3884 | for (GlobalSLocOffsetMapType::const_iterator |
| 3885 | EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) { |
| 3886 | ModuleFile &M = *SLocMapI->second; |
| 3887 | if (M.NumPreprocessedEntities) |
| 3888 | return M.BasePreprocessedEntityID; |
| 3889 | } |
| 3890 | |
| 3891 | return getTotalNumPreprocessedEntities(); |
| 3892 | } |
| 3893 | |
| 3894 | namespace { |
| 3895 | |
| 3896 | template <unsigned PPEntityOffset::*PPLoc> |
| 3897 | struct PPEntityComp { |
| 3898 | const ASTReader &Reader; |
| 3899 | ModuleFile &M; |
| 3900 | |
| 3901 | PPEntityComp(const ASTReader &Reader, ModuleFile &M) : Reader(Reader), M(M) { } |
| 3902 | |
| 3903 | bool operator()(const PPEntityOffset &L, const PPEntityOffset &R) const { |
| 3904 | SourceLocation LHS = getLoc(L); |
| 3905 | SourceLocation RHS = getLoc(R); |
| 3906 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 3907 | } |
| 3908 | |
| 3909 | bool operator()(const PPEntityOffset &L, SourceLocation RHS) const { |
| 3910 | SourceLocation LHS = getLoc(L); |
| 3911 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 3912 | } |
| 3913 | |
| 3914 | bool operator()(SourceLocation LHS, const PPEntityOffset &R) const { |
| 3915 | SourceLocation RHS = getLoc(R); |
| 3916 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 3917 | } |
| 3918 | |
| 3919 | SourceLocation getLoc(const PPEntityOffset &PPE) const { |
| 3920 | return Reader.ReadSourceLocation(M, PPE.*PPLoc); |
| 3921 | } |
| 3922 | }; |
| 3923 | |
| 3924 | } |
| 3925 | |
| 3926 | /// \brief Returns the first preprocessed entity ID that ends after \arg BLoc. |
| 3927 | PreprocessedEntityID |
| 3928 | ASTReader::findBeginPreprocessedEntity(SourceLocation BLoc) const { |
| 3929 | if (SourceMgr.isLocalSourceLocation(BLoc)) |
| 3930 | return getTotalNumPreprocessedEntities(); |
| 3931 | |
| 3932 | GlobalSLocOffsetMapType::const_iterator |
| 3933 | SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset - |
| 3934 | BLoc.getOffset()); |
| 3935 | assert(SLocMapI != GlobalSLocOffsetMap.end() && |
| 3936 | "Corrupted global sloc offset map"); |
| 3937 | |
| 3938 | if (SLocMapI->second->NumPreprocessedEntities == 0) |
| 3939 | return findNextPreprocessedEntity(SLocMapI); |
| 3940 | |
| 3941 | ModuleFile &M = *SLocMapI->second; |
| 3942 | typedef const PPEntityOffset *pp_iterator; |
| 3943 | pp_iterator pp_begin = M.PreprocessedEntityOffsets; |
| 3944 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities; |
| 3945 | |
| 3946 | size_t Count = M.NumPreprocessedEntities; |
| 3947 | size_t Half; |
| 3948 | pp_iterator First = pp_begin; |
| 3949 | pp_iterator PPI; |
| 3950 | |
| 3951 | // Do a binary search manually instead of using std::lower_bound because |
| 3952 | // The end locations of entities may be unordered (when a macro expansion |
| 3953 | // is inside another macro argument), but for this case it is not important |
| 3954 | // whether we get the first macro expansion or its containing macro. |
| 3955 | while (Count > 0) { |
| 3956 | Half = Count/2; |
| 3957 | PPI = First; |
| 3958 | std::advance(PPI, Half); |
| 3959 | if (SourceMgr.isBeforeInTranslationUnit(ReadSourceLocation(M, PPI->End), |
| 3960 | BLoc)){ |
| 3961 | First = PPI; |
| 3962 | ++First; |
| 3963 | Count = Count - Half - 1; |
| 3964 | } else |
| 3965 | Count = Half; |
| 3966 | } |
| 3967 | |
| 3968 | if (PPI == pp_end) |
| 3969 | return findNextPreprocessedEntity(SLocMapI); |
| 3970 | |
| 3971 | return M.BasePreprocessedEntityID + (PPI - pp_begin); |
| 3972 | } |
| 3973 | |
| 3974 | /// \brief Returns the first preprocessed entity ID that begins after \arg ELoc. |
| 3975 | PreprocessedEntityID |
| 3976 | ASTReader::findEndPreprocessedEntity(SourceLocation ELoc) const { |
| 3977 | if (SourceMgr.isLocalSourceLocation(ELoc)) |
| 3978 | return getTotalNumPreprocessedEntities(); |
| 3979 | |
| 3980 | GlobalSLocOffsetMapType::const_iterator |
| 3981 | SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset - |
| 3982 | ELoc.getOffset()); |
| 3983 | assert(SLocMapI != GlobalSLocOffsetMap.end() && |
| 3984 | "Corrupted global sloc offset map"); |
| 3985 | |
| 3986 | if (SLocMapI->second->NumPreprocessedEntities == 0) |
| 3987 | return findNextPreprocessedEntity(SLocMapI); |
| 3988 | |
| 3989 | ModuleFile &M = *SLocMapI->second; |
| 3990 | typedef const PPEntityOffset *pp_iterator; |
| 3991 | pp_iterator pp_begin = M.PreprocessedEntityOffsets; |
| 3992 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities; |
| 3993 | pp_iterator PPI = |
| 3994 | std::upper_bound(pp_begin, pp_end, ELoc, |
| 3995 | PPEntityComp<&PPEntityOffset::Begin>(*this, M)); |
| 3996 | |
| 3997 | if (PPI == pp_end) |
| 3998 | return findNextPreprocessedEntity(SLocMapI); |
| 3999 | |
| 4000 | return M.BasePreprocessedEntityID + (PPI - pp_begin); |
| 4001 | } |
| 4002 | |
| 4003 | /// \brief Returns a pair of [Begin, End) indices of preallocated |
| 4004 | /// preprocessed entities that \arg Range encompasses. |
| 4005 | std::pair<unsigned, unsigned> |
| 4006 | ASTReader::findPreprocessedEntitiesInRange(SourceRange Range) { |
| 4007 | if (Range.isInvalid()) |
| 4008 | return std::make_pair(0,0); |
| 4009 | assert(!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin())); |
| 4010 | |
| 4011 | PreprocessedEntityID BeginID = findBeginPreprocessedEntity(Range.getBegin()); |
| 4012 | PreprocessedEntityID EndID = findEndPreprocessedEntity(Range.getEnd()); |
| 4013 | return std::make_pair(BeginID, EndID); |
| 4014 | } |
| 4015 | |
| 4016 | /// \brief Optionally returns true or false if the preallocated preprocessed |
| 4017 | /// entity with index \arg Index came from file \arg FID. |
| 4018 | llvm::Optional<bool> ASTReader::isPreprocessedEntityInFileID(unsigned Index, |
| 4019 | FileID FID) { |
| 4020 | if (FID.isInvalid()) |
| 4021 | return false; |
| 4022 | |
| 4023 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); |
| 4024 | ModuleFile &M = *PPInfo.first; |
| 4025 | unsigned LocalIndex = PPInfo.second; |
| 4026 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex]; |
| 4027 | |
| 4028 | SourceLocation Loc = ReadSourceLocation(M, PPOffs.Begin); |
| 4029 | if (Loc.isInvalid()) |
| 4030 | return false; |
| 4031 | |
| 4032 | if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID)) |
| 4033 | return true; |
| 4034 | else |
| 4035 | return false; |
| 4036 | } |
| 4037 | |
| 4038 | namespace { |
| 4039 | /// \brief Visitor used to search for information about a header file. |
| 4040 | class HeaderFileInfoVisitor { |
| 4041 | ASTReader &Reader; |
| 4042 | const FileEntry *FE; |
| 4043 | |
| 4044 | llvm::Optional<HeaderFileInfo> HFI; |
| 4045 | |
| 4046 | public: |
| 4047 | HeaderFileInfoVisitor(ASTReader &Reader, const FileEntry *FE) |
| 4048 | : Reader(Reader), FE(FE) { } |
| 4049 | |
| 4050 | static bool visit(ModuleFile &M, void *UserData) { |
| 4051 | HeaderFileInfoVisitor *This |
| 4052 | = static_cast<HeaderFileInfoVisitor *>(UserData); |
| 4053 | |
| 4054 | HeaderFileInfoTrait Trait(This->Reader, M, |
| 4055 | &This->Reader.getPreprocessor().getHeaderSearchInfo(), |
| 4056 | M.HeaderFileFrameworkStrings, |
| 4057 | This->FE->getName()); |
| 4058 | |
| 4059 | HeaderFileInfoLookupTable *Table |
| 4060 | = static_cast<HeaderFileInfoLookupTable *>(M.HeaderFileInfoTable); |
| 4061 | if (!Table) |
| 4062 | return false; |
| 4063 | |
| 4064 | // Look in the on-disk hash table for an entry for this file name. |
| 4065 | HeaderFileInfoLookupTable::iterator Pos = Table->find(This->FE->getName(), |
| 4066 | &Trait); |
| 4067 | if (Pos == Table->end()) |
| 4068 | return false; |
| 4069 | |
| 4070 | This->HFI = *Pos; |
| 4071 | return true; |
| 4072 | } |
| 4073 | |
| 4074 | llvm::Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; } |
| 4075 | }; |
| 4076 | } |
| 4077 | |
| 4078 | HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) { |
| 4079 | HeaderFileInfoVisitor Visitor(*this, FE); |
| 4080 | ModuleMgr.visit(&HeaderFileInfoVisitor::visit, &Visitor); |
| 4081 | if (llvm::Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo()) { |
| 4082 | if (Listener) |
| 4083 | Listener->ReadHeaderFileInfo(*HFI, FE->getUID()); |
| 4084 | return *HFI; |
| 4085 | } |
| 4086 | |
| 4087 | return HeaderFileInfo(); |
| 4088 | } |
| 4089 | |
| 4090 | void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) { |
| 4091 | // FIXME: Make it work properly with modules. |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 4092 | SmallVector<DiagnosticsEngine::DiagState *, 32> DiagStates; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4093 | for (ModuleIterator I = ModuleMgr.begin(), E = ModuleMgr.end(); I != E; ++I) { |
| 4094 | ModuleFile &F = *(*I); |
| 4095 | unsigned Idx = 0; |
| 4096 | DiagStates.clear(); |
| 4097 | assert(!Diag.DiagStates.empty()); |
| 4098 | DiagStates.push_back(&Diag.DiagStates.front()); // the command-line one. |
| 4099 | while (Idx < F.PragmaDiagMappings.size()) { |
| 4100 | SourceLocation Loc = ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]); |
| 4101 | unsigned DiagStateID = F.PragmaDiagMappings[Idx++]; |
| 4102 | if (DiagStateID != 0) { |
| 4103 | Diag.DiagStatePoints.push_back( |
| 4104 | DiagnosticsEngine::DiagStatePoint(DiagStates[DiagStateID-1], |
| 4105 | FullSourceLoc(Loc, SourceMgr))); |
| 4106 | continue; |
| 4107 | } |
| 4108 | |
| 4109 | assert(DiagStateID == 0); |
| 4110 | // A new DiagState was created here. |
| 4111 | Diag.DiagStates.push_back(*Diag.GetCurDiagState()); |
| 4112 | DiagnosticsEngine::DiagState *NewState = &Diag.DiagStates.back(); |
| 4113 | DiagStates.push_back(NewState); |
| 4114 | Diag.DiagStatePoints.push_back( |
| 4115 | DiagnosticsEngine::DiagStatePoint(NewState, |
| 4116 | FullSourceLoc(Loc, SourceMgr))); |
| 4117 | while (1) { |
| 4118 | assert(Idx < F.PragmaDiagMappings.size() && |
| 4119 | "Invalid data, didn't find '-1' marking end of diag/map pairs"); |
| 4120 | if (Idx >= F.PragmaDiagMappings.size()) { |
| 4121 | break; // Something is messed up but at least avoid infinite loop in |
| 4122 | // release build. |
| 4123 | } |
| 4124 | unsigned DiagID = F.PragmaDiagMappings[Idx++]; |
| 4125 | if (DiagID == (unsigned)-1) { |
| 4126 | break; // no more diag/map pairs for this location. |
| 4127 | } |
| 4128 | diag::Mapping Map = (diag::Mapping)F.PragmaDiagMappings[Idx++]; |
| 4129 | DiagnosticMappingInfo MappingInfo = Diag.makeMappingInfo(Map, Loc); |
| 4130 | Diag.GetCurDiagState()->setMappingInfo(DiagID, MappingInfo); |
| 4131 | } |
| 4132 | } |
| 4133 | } |
| 4134 | } |
| 4135 | |
| 4136 | /// \brief Get the correct cursor and offset for loading a type. |
| 4137 | ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) { |
| 4138 | GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index); |
| 4139 | assert(I != GlobalTypeMap.end() && "Corrupted global type map"); |
| 4140 | ModuleFile *M = I->second; |
| 4141 | return RecordLocation(M, M->TypeOffsets[Index - M->BaseTypeIndex]); |
| 4142 | } |
| 4143 | |
| 4144 | /// \brief Read and return the type with the given index.. |
| 4145 | /// |
| 4146 | /// The index is the type ID, shifted and minus the number of predefs. This |
| 4147 | /// routine actually reads the record corresponding to the type at the given |
| 4148 | /// location. It is a helper routine for GetType, which deals with reading type |
| 4149 | /// IDs. |
| 4150 | QualType ASTReader::readTypeRecord(unsigned Index) { |
| 4151 | RecordLocation Loc = TypeCursorForIndex(Index); |
| 4152 | llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor; |
| 4153 | |
| 4154 | // Keep track of where we are in the stream, then jump back there |
| 4155 | // after reading this type. |
| 4156 | SavedStreamPosition SavedPosition(DeclsCursor); |
| 4157 | |
| 4158 | ReadingKindTracker ReadingKind(Read_Type, *this); |
| 4159 | |
| 4160 | // Note that we are loading a type record. |
| 4161 | Deserializing AType(this); |
| 4162 | |
| 4163 | unsigned Idx = 0; |
| 4164 | DeclsCursor.JumpToBit(Loc.Offset); |
| 4165 | RecordData Record; |
| 4166 | unsigned Code = DeclsCursor.ReadCode(); |
| 4167 | switch ((TypeCode)DeclsCursor.ReadRecord(Code, Record)) { |
| 4168 | case TYPE_EXT_QUAL: { |
| 4169 | if (Record.size() != 2) { |
| 4170 | Error("Incorrect encoding of extended qualifier type"); |
| 4171 | return QualType(); |
| 4172 | } |
| 4173 | QualType Base = readType(*Loc.F, Record, Idx); |
| 4174 | Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[Idx++]); |
| 4175 | return Context.getQualifiedType(Base, Quals); |
| 4176 | } |
| 4177 | |
| 4178 | case TYPE_COMPLEX: { |
| 4179 | if (Record.size() != 1) { |
| 4180 | Error("Incorrect encoding of complex type"); |
| 4181 | return QualType(); |
| 4182 | } |
| 4183 | QualType ElemType = readType(*Loc.F, Record, Idx); |
| 4184 | return Context.getComplexType(ElemType); |
| 4185 | } |
| 4186 | |
| 4187 | case TYPE_POINTER: { |
| 4188 | if (Record.size() != 1) { |
| 4189 | Error("Incorrect encoding of pointer type"); |
| 4190 | return QualType(); |
| 4191 | } |
| 4192 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4193 | return Context.getPointerType(PointeeType); |
| 4194 | } |
| 4195 | |
| 4196 | case TYPE_BLOCK_POINTER: { |
| 4197 | if (Record.size() != 1) { |
| 4198 | Error("Incorrect encoding of block pointer type"); |
| 4199 | return QualType(); |
| 4200 | } |
| 4201 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4202 | return Context.getBlockPointerType(PointeeType); |
| 4203 | } |
| 4204 | |
| 4205 | case TYPE_LVALUE_REFERENCE: { |
| 4206 | if (Record.size() != 2) { |
| 4207 | Error("Incorrect encoding of lvalue reference type"); |
| 4208 | return QualType(); |
| 4209 | } |
| 4210 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4211 | return Context.getLValueReferenceType(PointeeType, Record[1]); |
| 4212 | } |
| 4213 | |
| 4214 | case TYPE_RVALUE_REFERENCE: { |
| 4215 | if (Record.size() != 1) { |
| 4216 | Error("Incorrect encoding of rvalue reference type"); |
| 4217 | return QualType(); |
| 4218 | } |
| 4219 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4220 | return Context.getRValueReferenceType(PointeeType); |
| 4221 | } |
| 4222 | |
| 4223 | case TYPE_MEMBER_POINTER: { |
| 4224 | if (Record.size() != 2) { |
| 4225 | Error("Incorrect encoding of member pointer type"); |
| 4226 | return QualType(); |
| 4227 | } |
| 4228 | QualType PointeeType = readType(*Loc.F, Record, Idx); |
| 4229 | QualType ClassType = readType(*Loc.F, Record, Idx); |
| 4230 | if (PointeeType.isNull() || ClassType.isNull()) |
| 4231 | return QualType(); |
| 4232 | |
| 4233 | return Context.getMemberPointerType(PointeeType, ClassType.getTypePtr()); |
| 4234 | } |
| 4235 | |
| 4236 | case TYPE_CONSTANT_ARRAY: { |
| 4237 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4238 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; |
| 4239 | unsigned IndexTypeQuals = Record[2]; |
| 4240 | unsigned Idx = 3; |
| 4241 | llvm::APInt Size = ReadAPInt(Record, Idx); |
| 4242 | return Context.getConstantArrayType(ElementType, Size, |
| 4243 | ASM, IndexTypeQuals); |
| 4244 | } |
| 4245 | |
| 4246 | case TYPE_INCOMPLETE_ARRAY: { |
| 4247 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4248 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; |
| 4249 | unsigned IndexTypeQuals = Record[2]; |
| 4250 | return Context.getIncompleteArrayType(ElementType, ASM, IndexTypeQuals); |
| 4251 | } |
| 4252 | |
| 4253 | case TYPE_VARIABLE_ARRAY: { |
| 4254 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4255 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; |
| 4256 | unsigned IndexTypeQuals = Record[2]; |
| 4257 | SourceLocation LBLoc = ReadSourceLocation(*Loc.F, Record[3]); |
| 4258 | SourceLocation RBLoc = ReadSourceLocation(*Loc.F, Record[4]); |
| 4259 | return Context.getVariableArrayType(ElementType, ReadExpr(*Loc.F), |
| 4260 | ASM, IndexTypeQuals, |
| 4261 | SourceRange(LBLoc, RBLoc)); |
| 4262 | } |
| 4263 | |
| 4264 | case TYPE_VECTOR: { |
| 4265 | if (Record.size() != 3) { |
| 4266 | Error("incorrect encoding of vector type in AST file"); |
| 4267 | return QualType(); |
| 4268 | } |
| 4269 | |
| 4270 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4271 | unsigned NumElements = Record[1]; |
| 4272 | unsigned VecKind = Record[2]; |
| 4273 | return Context.getVectorType(ElementType, NumElements, |
| 4274 | (VectorType::VectorKind)VecKind); |
| 4275 | } |
| 4276 | |
| 4277 | case TYPE_EXT_VECTOR: { |
| 4278 | if (Record.size() != 3) { |
| 4279 | Error("incorrect encoding of extended vector type in AST file"); |
| 4280 | return QualType(); |
| 4281 | } |
| 4282 | |
| 4283 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4284 | unsigned NumElements = Record[1]; |
| 4285 | return Context.getExtVectorType(ElementType, NumElements); |
| 4286 | } |
| 4287 | |
| 4288 | case TYPE_FUNCTION_NO_PROTO: { |
| 4289 | if (Record.size() != 6) { |
| 4290 | Error("incorrect encoding of no-proto function type"); |
| 4291 | return QualType(); |
| 4292 | } |
| 4293 | QualType ResultType = readType(*Loc.F, Record, Idx); |
| 4294 | FunctionType::ExtInfo Info(Record[1], Record[2], Record[3], |
| 4295 | (CallingConv)Record[4], Record[5]); |
| 4296 | return Context.getFunctionNoProtoType(ResultType, Info); |
| 4297 | } |
| 4298 | |
| 4299 | case TYPE_FUNCTION_PROTO: { |
| 4300 | QualType ResultType = readType(*Loc.F, Record, Idx); |
| 4301 | |
| 4302 | FunctionProtoType::ExtProtoInfo EPI; |
| 4303 | EPI.ExtInfo = FunctionType::ExtInfo(/*noreturn*/ Record[1], |
| 4304 | /*hasregparm*/ Record[2], |
| 4305 | /*regparm*/ Record[3], |
| 4306 | static_cast<CallingConv>(Record[4]), |
| 4307 | /*produces*/ Record[5]); |
| 4308 | |
| 4309 | unsigned Idx = 6; |
| 4310 | unsigned NumParams = Record[Idx++]; |
| 4311 | SmallVector<QualType, 16> ParamTypes; |
| 4312 | for (unsigned I = 0; I != NumParams; ++I) |
| 4313 | ParamTypes.push_back(readType(*Loc.F, Record, Idx)); |
| 4314 | |
| 4315 | EPI.Variadic = Record[Idx++]; |
| 4316 | EPI.HasTrailingReturn = Record[Idx++]; |
| 4317 | EPI.TypeQuals = Record[Idx++]; |
| 4318 | EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]); |
| 4319 | ExceptionSpecificationType EST = |
| 4320 | static_cast<ExceptionSpecificationType>(Record[Idx++]); |
| 4321 | EPI.ExceptionSpecType = EST; |
| 4322 | SmallVector<QualType, 2> Exceptions; |
| 4323 | if (EST == EST_Dynamic) { |
| 4324 | EPI.NumExceptions = Record[Idx++]; |
| 4325 | for (unsigned I = 0; I != EPI.NumExceptions; ++I) |
| 4326 | Exceptions.push_back(readType(*Loc.F, Record, Idx)); |
| 4327 | EPI.Exceptions = Exceptions.data(); |
| 4328 | } else if (EST == EST_ComputedNoexcept) { |
| 4329 | EPI.NoexceptExpr = ReadExpr(*Loc.F); |
| 4330 | } else if (EST == EST_Uninstantiated) { |
| 4331 | EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx); |
| 4332 | EPI.ExceptionSpecTemplate = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx); |
| 4333 | } else if (EST == EST_Unevaluated) { |
| 4334 | EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx); |
| 4335 | } |
| 4336 | return Context.getFunctionType(ResultType, ParamTypes.data(), NumParams, |
| 4337 | EPI); |
| 4338 | } |
| 4339 | |
| 4340 | case TYPE_UNRESOLVED_USING: { |
| 4341 | unsigned Idx = 0; |
| 4342 | return Context.getTypeDeclType( |
| 4343 | ReadDeclAs<UnresolvedUsingTypenameDecl>(*Loc.F, Record, Idx)); |
| 4344 | } |
| 4345 | |
| 4346 | case TYPE_TYPEDEF: { |
| 4347 | if (Record.size() != 2) { |
| 4348 | Error("incorrect encoding of typedef type"); |
| 4349 | return QualType(); |
| 4350 | } |
| 4351 | unsigned Idx = 0; |
| 4352 | TypedefNameDecl *Decl = ReadDeclAs<TypedefNameDecl>(*Loc.F, Record, Idx); |
| 4353 | QualType Canonical = readType(*Loc.F, Record, Idx); |
| 4354 | if (!Canonical.isNull()) |
| 4355 | Canonical = Context.getCanonicalType(Canonical); |
| 4356 | return Context.getTypedefType(Decl, Canonical); |
| 4357 | } |
| 4358 | |
| 4359 | case TYPE_TYPEOF_EXPR: |
| 4360 | return Context.getTypeOfExprType(ReadExpr(*Loc.F)); |
| 4361 | |
| 4362 | case TYPE_TYPEOF: { |
| 4363 | if (Record.size() != 1) { |
| 4364 | Error("incorrect encoding of typeof(type) in AST file"); |
| 4365 | return QualType(); |
| 4366 | } |
| 4367 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); |
| 4368 | return Context.getTypeOfType(UnderlyingType); |
| 4369 | } |
| 4370 | |
| 4371 | case TYPE_DECLTYPE: { |
| 4372 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); |
| 4373 | return Context.getDecltypeType(ReadExpr(*Loc.F), UnderlyingType); |
| 4374 | } |
| 4375 | |
| 4376 | case TYPE_UNARY_TRANSFORM: { |
| 4377 | QualType BaseType = readType(*Loc.F, Record, Idx); |
| 4378 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); |
| 4379 | UnaryTransformType::UTTKind UKind = (UnaryTransformType::UTTKind)Record[2]; |
| 4380 | return Context.getUnaryTransformType(BaseType, UnderlyingType, UKind); |
| 4381 | } |
| 4382 | |
| 4383 | case TYPE_AUTO: |
| 4384 | return Context.getAutoType(readType(*Loc.F, Record, Idx)); |
| 4385 | |
| 4386 | case TYPE_RECORD: { |
| 4387 | if (Record.size() != 2) { |
| 4388 | Error("incorrect encoding of record type"); |
| 4389 | return QualType(); |
| 4390 | } |
| 4391 | unsigned Idx = 0; |
| 4392 | bool IsDependent = Record[Idx++]; |
| 4393 | RecordDecl *RD = ReadDeclAs<RecordDecl>(*Loc.F, Record, Idx); |
| 4394 | RD = cast_or_null<RecordDecl>(RD->getCanonicalDecl()); |
| 4395 | QualType T = Context.getRecordType(RD); |
| 4396 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); |
| 4397 | return T; |
| 4398 | } |
| 4399 | |
| 4400 | case TYPE_ENUM: { |
| 4401 | if (Record.size() != 2) { |
| 4402 | Error("incorrect encoding of enum type"); |
| 4403 | return QualType(); |
| 4404 | } |
| 4405 | unsigned Idx = 0; |
| 4406 | bool IsDependent = Record[Idx++]; |
| 4407 | QualType T |
| 4408 | = Context.getEnumType(ReadDeclAs<EnumDecl>(*Loc.F, Record, Idx)); |
| 4409 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); |
| 4410 | return T; |
| 4411 | } |
| 4412 | |
| 4413 | case TYPE_ATTRIBUTED: { |
| 4414 | if (Record.size() != 3) { |
| 4415 | Error("incorrect encoding of attributed type"); |
| 4416 | return QualType(); |
| 4417 | } |
| 4418 | QualType modifiedType = readType(*Loc.F, Record, Idx); |
| 4419 | QualType equivalentType = readType(*Loc.F, Record, Idx); |
| 4420 | AttributedType::Kind kind = static_cast<AttributedType::Kind>(Record[2]); |
| 4421 | return Context.getAttributedType(kind, modifiedType, equivalentType); |
| 4422 | } |
| 4423 | |
| 4424 | case TYPE_PAREN: { |
| 4425 | if (Record.size() != 1) { |
| 4426 | Error("incorrect encoding of paren type"); |
| 4427 | return QualType(); |
| 4428 | } |
| 4429 | QualType InnerType = readType(*Loc.F, Record, Idx); |
| 4430 | return Context.getParenType(InnerType); |
| 4431 | } |
| 4432 | |
| 4433 | case TYPE_PACK_EXPANSION: { |
| 4434 | if (Record.size() != 2) { |
| 4435 | Error("incorrect encoding of pack expansion type"); |
| 4436 | return QualType(); |
| 4437 | } |
| 4438 | QualType Pattern = readType(*Loc.F, Record, Idx); |
| 4439 | if (Pattern.isNull()) |
| 4440 | return QualType(); |
| 4441 | llvm::Optional<unsigned> NumExpansions; |
| 4442 | if (Record[1]) |
| 4443 | NumExpansions = Record[1] - 1; |
| 4444 | return Context.getPackExpansionType(Pattern, NumExpansions); |
| 4445 | } |
| 4446 | |
| 4447 | case TYPE_ELABORATED: { |
| 4448 | unsigned Idx = 0; |
| 4449 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; |
| 4450 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); |
| 4451 | QualType NamedType = readType(*Loc.F, Record, Idx); |
| 4452 | return Context.getElaboratedType(Keyword, NNS, NamedType); |
| 4453 | } |
| 4454 | |
| 4455 | case TYPE_OBJC_INTERFACE: { |
| 4456 | unsigned Idx = 0; |
| 4457 | ObjCInterfaceDecl *ItfD |
| 4458 | = ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx); |
| 4459 | return Context.getObjCInterfaceType(ItfD->getCanonicalDecl()); |
| 4460 | } |
| 4461 | |
| 4462 | case TYPE_OBJC_OBJECT: { |
| 4463 | unsigned Idx = 0; |
| 4464 | QualType Base = readType(*Loc.F, Record, Idx); |
| 4465 | unsigned NumProtos = Record[Idx++]; |
| 4466 | SmallVector<ObjCProtocolDecl*, 4> Protos; |
| 4467 | for (unsigned I = 0; I != NumProtos; ++I) |
| 4468 | Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx)); |
| 4469 | return Context.getObjCObjectType(Base, Protos.data(), NumProtos); |
| 4470 | } |
| 4471 | |
| 4472 | case TYPE_OBJC_OBJECT_POINTER: { |
| 4473 | unsigned Idx = 0; |
| 4474 | QualType Pointee = readType(*Loc.F, Record, Idx); |
| 4475 | return Context.getObjCObjectPointerType(Pointee); |
| 4476 | } |
| 4477 | |
| 4478 | case TYPE_SUBST_TEMPLATE_TYPE_PARM: { |
| 4479 | unsigned Idx = 0; |
| 4480 | QualType Parm = readType(*Loc.F, Record, Idx); |
| 4481 | QualType Replacement = readType(*Loc.F, Record, Idx); |
| 4482 | return |
| 4483 | Context.getSubstTemplateTypeParmType(cast<TemplateTypeParmType>(Parm), |
| 4484 | Replacement); |
| 4485 | } |
| 4486 | |
| 4487 | case TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK: { |
| 4488 | unsigned Idx = 0; |
| 4489 | QualType Parm = readType(*Loc.F, Record, Idx); |
| 4490 | TemplateArgument ArgPack = ReadTemplateArgument(*Loc.F, Record, Idx); |
| 4491 | return Context.getSubstTemplateTypeParmPackType( |
| 4492 | cast<TemplateTypeParmType>(Parm), |
| 4493 | ArgPack); |
| 4494 | } |
| 4495 | |
| 4496 | case TYPE_INJECTED_CLASS_NAME: { |
| 4497 | CXXRecordDecl *D = ReadDeclAs<CXXRecordDecl>(*Loc.F, Record, Idx); |
| 4498 | QualType TST = readType(*Loc.F, Record, Idx); // probably derivable |
| 4499 | // FIXME: ASTContext::getInjectedClassNameType is not currently suitable |
| 4500 | // for AST reading, too much interdependencies. |
| 4501 | return |
| 4502 | QualType(new (Context, TypeAlignment) InjectedClassNameType(D, TST), 0); |
| 4503 | } |
| 4504 | |
| 4505 | case TYPE_TEMPLATE_TYPE_PARM: { |
| 4506 | unsigned Idx = 0; |
| 4507 | unsigned Depth = Record[Idx++]; |
| 4508 | unsigned Index = Record[Idx++]; |
| 4509 | bool Pack = Record[Idx++]; |
| 4510 | TemplateTypeParmDecl *D |
| 4511 | = ReadDeclAs<TemplateTypeParmDecl>(*Loc.F, Record, Idx); |
| 4512 | return Context.getTemplateTypeParmType(Depth, Index, Pack, D); |
| 4513 | } |
| 4514 | |
| 4515 | case TYPE_DEPENDENT_NAME: { |
| 4516 | unsigned Idx = 0; |
| 4517 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; |
| 4518 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); |
| 4519 | const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx); |
| 4520 | QualType Canon = readType(*Loc.F, Record, Idx); |
| 4521 | if (!Canon.isNull()) |
| 4522 | Canon = Context.getCanonicalType(Canon); |
| 4523 | return Context.getDependentNameType(Keyword, NNS, Name, Canon); |
| 4524 | } |
| 4525 | |
| 4526 | case TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: { |
| 4527 | unsigned Idx = 0; |
| 4528 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; |
| 4529 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); |
| 4530 | const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx); |
| 4531 | unsigned NumArgs = Record[Idx++]; |
| 4532 | SmallVector<TemplateArgument, 8> Args; |
| 4533 | Args.reserve(NumArgs); |
| 4534 | while (NumArgs--) |
| 4535 | Args.push_back(ReadTemplateArgument(*Loc.F, Record, Idx)); |
| 4536 | return Context.getDependentTemplateSpecializationType(Keyword, NNS, Name, |
| 4537 | Args.size(), Args.data()); |
| 4538 | } |
| 4539 | |
| 4540 | case TYPE_DEPENDENT_SIZED_ARRAY: { |
| 4541 | unsigned Idx = 0; |
| 4542 | |
| 4543 | // ArrayType |
| 4544 | QualType ElementType = readType(*Loc.F, Record, Idx); |
| 4545 | ArrayType::ArraySizeModifier ASM |
| 4546 | = (ArrayType::ArraySizeModifier)Record[Idx++]; |
| 4547 | unsigned IndexTypeQuals = Record[Idx++]; |
| 4548 | |
| 4549 | // DependentSizedArrayType |
| 4550 | Expr *NumElts = ReadExpr(*Loc.F); |
| 4551 | SourceRange Brackets = ReadSourceRange(*Loc.F, Record, Idx); |
| 4552 | |
| 4553 | return Context.getDependentSizedArrayType(ElementType, NumElts, ASM, |
| 4554 | IndexTypeQuals, Brackets); |
| 4555 | } |
| 4556 | |
| 4557 | case TYPE_TEMPLATE_SPECIALIZATION: { |
| 4558 | unsigned Idx = 0; |
| 4559 | bool IsDependent = Record[Idx++]; |
| 4560 | TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx); |
| 4561 | SmallVector<TemplateArgument, 8> Args; |
| 4562 | ReadTemplateArgumentList(Args, *Loc.F, Record, Idx); |
| 4563 | QualType Underlying = readType(*Loc.F, Record, Idx); |
| 4564 | QualType T; |
| 4565 | if (Underlying.isNull()) |
| 4566 | T = Context.getCanonicalTemplateSpecializationType(Name, Args.data(), |
| 4567 | Args.size()); |
| 4568 | else |
| 4569 | T = Context.getTemplateSpecializationType(Name, Args.data(), |
| 4570 | Args.size(), Underlying); |
| 4571 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); |
| 4572 | return T; |
| 4573 | } |
| 4574 | |
| 4575 | case TYPE_ATOMIC: { |
| 4576 | if (Record.size() != 1) { |
| 4577 | Error("Incorrect encoding of atomic type"); |
| 4578 | return QualType(); |
| 4579 | } |
| 4580 | QualType ValueType = readType(*Loc.F, Record, Idx); |
| 4581 | return Context.getAtomicType(ValueType); |
| 4582 | } |
| 4583 | } |
| 4584 | llvm_unreachable("Invalid TypeCode!"); |
| 4585 | } |
| 4586 | |
| 4587 | class clang::TypeLocReader : public TypeLocVisitor<TypeLocReader> { |
| 4588 | ASTReader &Reader; |
| 4589 | ModuleFile &F; |
| 4590 | const ASTReader::RecordData &Record; |
| 4591 | unsigned &Idx; |
| 4592 | |
| 4593 | SourceLocation ReadSourceLocation(const ASTReader::RecordData &R, |
| 4594 | unsigned &I) { |
| 4595 | return Reader.ReadSourceLocation(F, R, I); |
| 4596 | } |
| 4597 | |
| 4598 | template<typename T> |
| 4599 | T *ReadDeclAs(const ASTReader::RecordData &Record, unsigned &Idx) { |
| 4600 | return Reader.ReadDeclAs<T>(F, Record, Idx); |
| 4601 | } |
| 4602 | |
| 4603 | public: |
| 4604 | TypeLocReader(ASTReader &Reader, ModuleFile &F, |
| 4605 | const ASTReader::RecordData &Record, unsigned &Idx) |
| 4606 | : Reader(Reader), F(F), Record(Record), Idx(Idx) |
| 4607 | { } |
| 4608 | |
| 4609 | // We want compile-time assurance that we've enumerated all of |
| 4610 | // these, so unfortunately we have to declare them first, then |
| 4611 | // define them out-of-line. |
| 4612 | #define ABSTRACT_TYPELOC(CLASS, PARENT) |
| 4613 | #define TYPELOC(CLASS, PARENT) \ |
| 4614 | void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc); |
| 4615 | #include "clang/AST/TypeLocNodes.def" |
| 4616 | |
| 4617 | void VisitFunctionTypeLoc(FunctionTypeLoc); |
| 4618 | void VisitArrayTypeLoc(ArrayTypeLoc); |
| 4619 | }; |
| 4620 | |
| 4621 | void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { |
| 4622 | // nothing to do |
| 4623 | } |
| 4624 | void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { |
| 4625 | TL.setBuiltinLoc(ReadSourceLocation(Record, Idx)); |
| 4626 | if (TL.needsExtraLocalData()) { |
| 4627 | TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++])); |
| 4628 | TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++])); |
| 4629 | TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++])); |
| 4630 | TL.setModeAttr(Record[Idx++]); |
| 4631 | } |
| 4632 | } |
| 4633 | void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) { |
| 4634 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4635 | } |
| 4636 | void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) { |
| 4637 | TL.setStarLoc(ReadSourceLocation(Record, Idx)); |
| 4638 | } |
| 4639 | void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { |
| 4640 | TL.setCaretLoc(ReadSourceLocation(Record, Idx)); |
| 4641 | } |
| 4642 | void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { |
| 4643 | TL.setAmpLoc(ReadSourceLocation(Record, Idx)); |
| 4644 | } |
| 4645 | void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { |
| 4646 | TL.setAmpAmpLoc(ReadSourceLocation(Record, Idx)); |
| 4647 | } |
| 4648 | void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { |
| 4649 | TL.setStarLoc(ReadSourceLocation(Record, Idx)); |
| 4650 | TL.setClassTInfo(Reader.GetTypeSourceInfo(F, Record, Idx)); |
| 4651 | } |
| 4652 | void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) { |
| 4653 | TL.setLBracketLoc(ReadSourceLocation(Record, Idx)); |
| 4654 | TL.setRBracketLoc(ReadSourceLocation(Record, Idx)); |
| 4655 | if (Record[Idx++]) |
| 4656 | TL.setSizeExpr(Reader.ReadExpr(F)); |
| 4657 | else |
| 4658 | TL.setSizeExpr(0); |
| 4659 | } |
| 4660 | void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) { |
| 4661 | VisitArrayTypeLoc(TL); |
| 4662 | } |
| 4663 | void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) { |
| 4664 | VisitArrayTypeLoc(TL); |
| 4665 | } |
| 4666 | void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) { |
| 4667 | VisitArrayTypeLoc(TL); |
| 4668 | } |
| 4669 | void TypeLocReader::VisitDependentSizedArrayTypeLoc( |
| 4670 | DependentSizedArrayTypeLoc TL) { |
| 4671 | VisitArrayTypeLoc(TL); |
| 4672 | } |
| 4673 | void TypeLocReader::VisitDependentSizedExtVectorTypeLoc( |
| 4674 | DependentSizedExtVectorTypeLoc TL) { |
| 4675 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4676 | } |
| 4677 | void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) { |
| 4678 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4679 | } |
| 4680 | void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) { |
| 4681 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4682 | } |
| 4683 | void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) { |
| 4684 | TL.setLocalRangeBegin(ReadSourceLocation(Record, Idx)); |
| 4685 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4686 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4687 | TL.setLocalRangeEnd(ReadSourceLocation(Record, Idx)); |
| 4688 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) { |
| 4689 | TL.setArg(i, ReadDeclAs<ParmVarDecl>(Record, Idx)); |
| 4690 | } |
| 4691 | } |
| 4692 | void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) { |
| 4693 | VisitFunctionTypeLoc(TL); |
| 4694 | } |
| 4695 | void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) { |
| 4696 | VisitFunctionTypeLoc(TL); |
| 4697 | } |
| 4698 | void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) { |
| 4699 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4700 | } |
| 4701 | void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) { |
| 4702 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4703 | } |
| 4704 | void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { |
| 4705 | TL.setTypeofLoc(ReadSourceLocation(Record, Idx)); |
| 4706 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4707 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4708 | } |
| 4709 | void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { |
| 4710 | TL.setTypeofLoc(ReadSourceLocation(Record, Idx)); |
| 4711 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4712 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4713 | TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx)); |
| 4714 | } |
| 4715 | void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) { |
| 4716 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4717 | } |
| 4718 | void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { |
| 4719 | TL.setKWLoc(ReadSourceLocation(Record, Idx)); |
| 4720 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4721 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4722 | TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx)); |
| 4723 | } |
| 4724 | void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) { |
| 4725 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4726 | } |
| 4727 | void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) { |
| 4728 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4729 | } |
| 4730 | void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) { |
| 4731 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4732 | } |
| 4733 | void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) { |
| 4734 | TL.setAttrNameLoc(ReadSourceLocation(Record, Idx)); |
| 4735 | if (TL.hasAttrOperand()) { |
| 4736 | SourceRange range; |
| 4737 | range.setBegin(ReadSourceLocation(Record, Idx)); |
| 4738 | range.setEnd(ReadSourceLocation(Record, Idx)); |
| 4739 | TL.setAttrOperandParensRange(range); |
| 4740 | } |
| 4741 | if (TL.hasAttrExprOperand()) { |
| 4742 | if (Record[Idx++]) |
| 4743 | TL.setAttrExprOperand(Reader.ReadExpr(F)); |
| 4744 | else |
| 4745 | TL.setAttrExprOperand(0); |
| 4746 | } else if (TL.hasAttrEnumOperand()) |
| 4747 | TL.setAttrEnumOperandLoc(ReadSourceLocation(Record, Idx)); |
| 4748 | } |
| 4749 | void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) { |
| 4750 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4751 | } |
| 4752 | void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc( |
| 4753 | SubstTemplateTypeParmTypeLoc TL) { |
| 4754 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4755 | } |
| 4756 | void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc( |
| 4757 | SubstTemplateTypeParmPackTypeLoc TL) { |
| 4758 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4759 | } |
| 4760 | void TypeLocReader::VisitTemplateSpecializationTypeLoc( |
| 4761 | TemplateSpecializationTypeLoc TL) { |
| 4762 | TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4763 | TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx)); |
| 4764 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4765 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4766 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) |
| 4767 | TL.setArgLocInfo(i, |
| 4768 | Reader.GetTemplateArgumentLocInfo(F, |
| 4769 | TL.getTypePtr()->getArg(i).getKind(), |
| 4770 | Record, Idx)); |
| 4771 | } |
| 4772 | void TypeLocReader::VisitParenTypeLoc(ParenTypeLoc TL) { |
| 4773 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4774 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4775 | } |
| 4776 | void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { |
| 4777 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4778 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx)); |
| 4779 | } |
| 4780 | void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) { |
| 4781 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4782 | } |
| 4783 | void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { |
| 4784 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4785 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx)); |
| 4786 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4787 | } |
| 4788 | void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc( |
| 4789 | DependentTemplateSpecializationTypeLoc TL) { |
| 4790 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4791 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx)); |
| 4792 | TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx)); |
| 4793 | TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx)); |
| 4794 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4795 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4796 | for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I) |
| 4797 | TL.setArgLocInfo(I, |
| 4798 | Reader.GetTemplateArgumentLocInfo(F, |
| 4799 | TL.getTypePtr()->getArg(I).getKind(), |
| 4800 | Record, Idx)); |
| 4801 | } |
| 4802 | void TypeLocReader::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) { |
| 4803 | TL.setEllipsisLoc(ReadSourceLocation(Record, Idx)); |
| 4804 | } |
| 4805 | void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { |
| 4806 | TL.setNameLoc(ReadSourceLocation(Record, Idx)); |
| 4807 | } |
| 4808 | void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { |
| 4809 | TL.setHasBaseTypeAsWritten(Record[Idx++]); |
| 4810 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4811 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| 4812 | for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i) |
| 4813 | TL.setProtocolLoc(i, ReadSourceLocation(Record, Idx)); |
| 4814 | } |
| 4815 | void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { |
| 4816 | TL.setStarLoc(ReadSourceLocation(Record, Idx)); |
| 4817 | } |
| 4818 | void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) { |
| 4819 | TL.setKWLoc(ReadSourceLocation(Record, Idx)); |
| 4820 | TL.setLParenLoc(ReadSourceLocation(Record, Idx)); |
| 4821 | TL.setRParenLoc(ReadSourceLocation(Record, Idx)); |
| 4822 | } |
| 4823 | |
| 4824 | TypeSourceInfo *ASTReader::GetTypeSourceInfo(ModuleFile &F, |
| 4825 | const RecordData &Record, |
| 4826 | unsigned &Idx) { |
| 4827 | QualType InfoTy = readType(F, Record, Idx); |
| 4828 | if (InfoTy.isNull()) |
| 4829 | return 0; |
| 4830 | |
| 4831 | TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy); |
| 4832 | TypeLocReader TLR(*this, F, Record, Idx); |
| 4833 | for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc()) |
| 4834 | TLR.Visit(TL); |
| 4835 | return TInfo; |
| 4836 | } |
| 4837 | |
| 4838 | QualType ASTReader::GetType(TypeID ID) { |
| 4839 | unsigned FastQuals = ID & Qualifiers::FastMask; |
| 4840 | unsigned Index = ID >> Qualifiers::FastWidth; |
| 4841 | |
| 4842 | if (Index < NUM_PREDEF_TYPE_IDS) { |
| 4843 | QualType T; |
| 4844 | switch ((PredefinedTypeIDs)Index) { |
| 4845 | case PREDEF_TYPE_NULL_ID: return QualType(); |
| 4846 | case PREDEF_TYPE_VOID_ID: T = Context.VoidTy; break; |
| 4847 | case PREDEF_TYPE_BOOL_ID: T = Context.BoolTy; break; |
| 4848 | |
| 4849 | case PREDEF_TYPE_CHAR_U_ID: |
| 4850 | case PREDEF_TYPE_CHAR_S_ID: |
| 4851 | // FIXME: Check that the signedness of CharTy is correct! |
| 4852 | T = Context.CharTy; |
| 4853 | break; |
| 4854 | |
| 4855 | case PREDEF_TYPE_UCHAR_ID: T = Context.UnsignedCharTy; break; |
| 4856 | case PREDEF_TYPE_USHORT_ID: T = Context.UnsignedShortTy; break; |
| 4857 | case PREDEF_TYPE_UINT_ID: T = Context.UnsignedIntTy; break; |
| 4858 | case PREDEF_TYPE_ULONG_ID: T = Context.UnsignedLongTy; break; |
| 4859 | case PREDEF_TYPE_ULONGLONG_ID: T = Context.UnsignedLongLongTy; break; |
| 4860 | case PREDEF_TYPE_UINT128_ID: T = Context.UnsignedInt128Ty; break; |
| 4861 | case PREDEF_TYPE_SCHAR_ID: T = Context.SignedCharTy; break; |
| 4862 | case PREDEF_TYPE_WCHAR_ID: T = Context.WCharTy; break; |
| 4863 | case PREDEF_TYPE_SHORT_ID: T = Context.ShortTy; break; |
| 4864 | case PREDEF_TYPE_INT_ID: T = Context.IntTy; break; |
| 4865 | case PREDEF_TYPE_LONG_ID: T = Context.LongTy; break; |
| 4866 | case PREDEF_TYPE_LONGLONG_ID: T = Context.LongLongTy; break; |
| 4867 | case PREDEF_TYPE_INT128_ID: T = Context.Int128Ty; break; |
| 4868 | case PREDEF_TYPE_HALF_ID: T = Context.HalfTy; break; |
| 4869 | case PREDEF_TYPE_FLOAT_ID: T = Context.FloatTy; break; |
| 4870 | case PREDEF_TYPE_DOUBLE_ID: T = Context.DoubleTy; break; |
| 4871 | case PREDEF_TYPE_LONGDOUBLE_ID: T = Context.LongDoubleTy; break; |
| 4872 | case PREDEF_TYPE_OVERLOAD_ID: T = Context.OverloadTy; break; |
| 4873 | case PREDEF_TYPE_BOUND_MEMBER: T = Context.BoundMemberTy; break; |
| 4874 | case PREDEF_TYPE_PSEUDO_OBJECT: T = Context.PseudoObjectTy; break; |
| 4875 | case PREDEF_TYPE_DEPENDENT_ID: T = Context.DependentTy; break; |
| 4876 | case PREDEF_TYPE_UNKNOWN_ANY: T = Context.UnknownAnyTy; break; |
| 4877 | case PREDEF_TYPE_NULLPTR_ID: T = Context.NullPtrTy; break; |
| 4878 | case PREDEF_TYPE_CHAR16_ID: T = Context.Char16Ty; break; |
| 4879 | case PREDEF_TYPE_CHAR32_ID: T = Context.Char32Ty; break; |
| 4880 | case PREDEF_TYPE_OBJC_ID: T = Context.ObjCBuiltinIdTy; break; |
| 4881 | case PREDEF_TYPE_OBJC_CLASS: T = Context.ObjCBuiltinClassTy; break; |
| 4882 | case PREDEF_TYPE_OBJC_SEL: T = Context.ObjCBuiltinSelTy; break; |
Guy Benyei | b13621d | 2012-12-18 14:38:23 +0000 | [diff] [blame] | 4883 | case PREDEF_TYPE_IMAGE1D_ID: T = Context.OCLImage1dTy; break; |
| 4884 | case PREDEF_TYPE_IMAGE1D_ARR_ID: T = Context.OCLImage1dArrayTy; break; |
| 4885 | case PREDEF_TYPE_IMAGE1D_BUFF_ID: T = Context.OCLImage1dBufferTy; break; |
| 4886 | case PREDEF_TYPE_IMAGE2D_ID: T = Context.OCLImage2dTy; break; |
| 4887 | case PREDEF_TYPE_IMAGE2D_ARR_ID: T = Context.OCLImage2dArrayTy; break; |
| 4888 | case PREDEF_TYPE_IMAGE3D_ID: T = Context.OCLImage3dTy; break; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 4889 | case PREDEF_TYPE_AUTO_DEDUCT: T = Context.getAutoDeductType(); break; |
| 4890 | |
| 4891 | case PREDEF_TYPE_AUTO_RREF_DEDUCT: |
| 4892 | T = Context.getAutoRRefDeductType(); |
| 4893 | break; |
| 4894 | |
| 4895 | case PREDEF_TYPE_ARC_UNBRIDGED_CAST: |
| 4896 | T = Context.ARCUnbridgedCastTy; |
| 4897 | break; |
| 4898 | |
| 4899 | case PREDEF_TYPE_VA_LIST_TAG: |
| 4900 | T = Context.getVaListTagType(); |
| 4901 | break; |
| 4902 | |
| 4903 | case PREDEF_TYPE_BUILTIN_FN: |
| 4904 | T = Context.BuiltinFnTy; |
| 4905 | break; |
| 4906 | } |
| 4907 | |
| 4908 | assert(!T.isNull() && "Unknown predefined type"); |
| 4909 | return T.withFastQualifiers(FastQuals); |
| 4910 | } |
| 4911 | |
| 4912 | Index -= NUM_PREDEF_TYPE_IDS; |
| 4913 | assert(Index < TypesLoaded.size() && "Type index out-of-range"); |
| 4914 | if (TypesLoaded[Index].isNull()) { |
| 4915 | TypesLoaded[Index] = readTypeRecord(Index); |
| 4916 | if (TypesLoaded[Index].isNull()) |
| 4917 | return QualType(); |
| 4918 | |
| 4919 | TypesLoaded[Index]->setFromAST(); |
| 4920 | if (DeserializationListener) |
| 4921 | DeserializationListener->TypeRead(TypeIdx::fromTypeID(ID), |
| 4922 | TypesLoaded[Index]); |
| 4923 | } |
| 4924 | |
| 4925 | return TypesLoaded[Index].withFastQualifiers(FastQuals); |
| 4926 | } |
| 4927 | |
| 4928 | QualType ASTReader::getLocalType(ModuleFile &F, unsigned LocalID) { |
| 4929 | return GetType(getGlobalTypeID(F, LocalID)); |
| 4930 | } |
| 4931 | |
| 4932 | serialization::TypeID |
| 4933 | ASTReader::getGlobalTypeID(ModuleFile &F, unsigned LocalID) const { |
| 4934 | unsigned FastQuals = LocalID & Qualifiers::FastMask; |
| 4935 | unsigned LocalIndex = LocalID >> Qualifiers::FastWidth; |
| 4936 | |
| 4937 | if (LocalIndex < NUM_PREDEF_TYPE_IDS) |
| 4938 | return LocalID; |
| 4939 | |
| 4940 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 4941 | = F.TypeRemap.find(LocalIndex - NUM_PREDEF_TYPE_IDS); |
| 4942 | assert(I != F.TypeRemap.end() && "Invalid index into type index remap"); |
| 4943 | |
| 4944 | unsigned GlobalIndex = LocalIndex + I->second; |
| 4945 | return (GlobalIndex << Qualifiers::FastWidth) | FastQuals; |
| 4946 | } |
| 4947 | |
| 4948 | TemplateArgumentLocInfo |
| 4949 | ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F, |
| 4950 | TemplateArgument::ArgKind Kind, |
| 4951 | const RecordData &Record, |
| 4952 | unsigned &Index) { |
| 4953 | switch (Kind) { |
| 4954 | case TemplateArgument::Expression: |
| 4955 | return ReadExpr(F); |
| 4956 | case TemplateArgument::Type: |
| 4957 | return GetTypeSourceInfo(F, Record, Index); |
| 4958 | case TemplateArgument::Template: { |
| 4959 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, |
| 4960 | Index); |
| 4961 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index); |
| 4962 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc, |
| 4963 | SourceLocation()); |
| 4964 | } |
| 4965 | case TemplateArgument::TemplateExpansion: { |
| 4966 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, |
| 4967 | Index); |
| 4968 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index); |
| 4969 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Index); |
| 4970 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc, |
| 4971 | EllipsisLoc); |
| 4972 | } |
| 4973 | case TemplateArgument::Null: |
| 4974 | case TemplateArgument::Integral: |
| 4975 | case TemplateArgument::Declaration: |
| 4976 | case TemplateArgument::NullPtr: |
| 4977 | case TemplateArgument::Pack: |
| 4978 | // FIXME: Is this right? |
| 4979 | return TemplateArgumentLocInfo(); |
| 4980 | } |
| 4981 | llvm_unreachable("unexpected template argument loc"); |
| 4982 | } |
| 4983 | |
| 4984 | TemplateArgumentLoc |
| 4985 | ASTReader::ReadTemplateArgumentLoc(ModuleFile &F, |
| 4986 | const RecordData &Record, unsigned &Index) { |
| 4987 | TemplateArgument Arg = ReadTemplateArgument(F, Record, Index); |
| 4988 | |
| 4989 | if (Arg.getKind() == TemplateArgument::Expression) { |
| 4990 | if (Record[Index++]) // bool InfoHasSameExpr. |
| 4991 | return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr())); |
| 4992 | } |
| 4993 | return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(F, Arg.getKind(), |
| 4994 | Record, Index)); |
| 4995 | } |
| 4996 | |
| 4997 | Decl *ASTReader::GetExternalDecl(uint32_t ID) { |
| 4998 | return GetDecl(ID); |
| 4999 | } |
| 5000 | |
| 5001 | uint64_t ASTReader::readCXXBaseSpecifiers(ModuleFile &M, const RecordData &Record, |
| 5002 | unsigned &Idx){ |
| 5003 | if (Idx >= Record.size()) |
| 5004 | return 0; |
| 5005 | |
| 5006 | unsigned LocalID = Record[Idx++]; |
| 5007 | return getGlobalBitOffset(M, M.CXXBaseSpecifiersOffsets[LocalID - 1]); |
| 5008 | } |
| 5009 | |
| 5010 | CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) { |
| 5011 | RecordLocation Loc = getLocalBitOffset(Offset); |
| 5012 | llvm::BitstreamCursor &Cursor = Loc.F->DeclsCursor; |
| 5013 | SavedStreamPosition SavedPosition(Cursor); |
| 5014 | Cursor.JumpToBit(Loc.Offset); |
| 5015 | ReadingKindTracker ReadingKind(Read_Decl, *this); |
| 5016 | RecordData Record; |
| 5017 | unsigned Code = Cursor.ReadCode(); |
| 5018 | unsigned RecCode = Cursor.ReadRecord(Code, Record); |
| 5019 | if (RecCode != DECL_CXX_BASE_SPECIFIERS) { |
| 5020 | Error("Malformed AST file: missing C++ base specifiers"); |
| 5021 | return 0; |
| 5022 | } |
| 5023 | |
| 5024 | unsigned Idx = 0; |
| 5025 | unsigned NumBases = Record[Idx++]; |
| 5026 | void *Mem = Context.Allocate(sizeof(CXXBaseSpecifier) * NumBases); |
| 5027 | CXXBaseSpecifier *Bases = new (Mem) CXXBaseSpecifier [NumBases]; |
| 5028 | for (unsigned I = 0; I != NumBases; ++I) |
| 5029 | Bases[I] = ReadCXXBaseSpecifier(*Loc.F, Record, Idx); |
| 5030 | return Bases; |
| 5031 | } |
| 5032 | |
| 5033 | serialization::DeclID |
| 5034 | ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const { |
| 5035 | if (LocalID < NUM_PREDEF_DECL_IDS) |
| 5036 | return LocalID; |
| 5037 | |
| 5038 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 5039 | = F.DeclRemap.find(LocalID - NUM_PREDEF_DECL_IDS); |
| 5040 | assert(I != F.DeclRemap.end() && "Invalid index into decl index remap"); |
| 5041 | |
| 5042 | return LocalID + I->second; |
| 5043 | } |
| 5044 | |
| 5045 | bool ASTReader::isDeclIDFromModule(serialization::GlobalDeclID ID, |
| 5046 | ModuleFile &M) const { |
| 5047 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(ID); |
| 5048 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| 5049 | return &M == I->second; |
| 5050 | } |
| 5051 | |
| 5052 | ModuleFile *ASTReader::getOwningModuleFile(Decl *D) { |
| 5053 | if (!D->isFromASTFile()) |
| 5054 | return 0; |
| 5055 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(D->getGlobalID()); |
| 5056 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| 5057 | return I->second; |
| 5058 | } |
| 5059 | |
| 5060 | SourceLocation ASTReader::getSourceLocationForDeclID(GlobalDeclID ID) { |
| 5061 | if (ID < NUM_PREDEF_DECL_IDS) |
| 5062 | return SourceLocation(); |
| 5063 | |
| 5064 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; |
| 5065 | |
| 5066 | if (Index > DeclsLoaded.size()) { |
| 5067 | Error("declaration ID out-of-range for AST file"); |
| 5068 | return SourceLocation(); |
| 5069 | } |
| 5070 | |
| 5071 | if (Decl *D = DeclsLoaded[Index]) |
| 5072 | return D->getLocation(); |
| 5073 | |
| 5074 | unsigned RawLocation = 0; |
| 5075 | RecordLocation Rec = DeclCursorForID(ID, RawLocation); |
| 5076 | return ReadSourceLocation(*Rec.F, RawLocation); |
| 5077 | } |
| 5078 | |
| 5079 | Decl *ASTReader::GetDecl(DeclID ID) { |
| 5080 | if (ID < NUM_PREDEF_DECL_IDS) { |
| 5081 | switch ((PredefinedDeclIDs)ID) { |
| 5082 | case PREDEF_DECL_NULL_ID: |
| 5083 | return 0; |
| 5084 | |
| 5085 | case PREDEF_DECL_TRANSLATION_UNIT_ID: |
| 5086 | return Context.getTranslationUnitDecl(); |
| 5087 | |
| 5088 | case PREDEF_DECL_OBJC_ID_ID: |
| 5089 | return Context.getObjCIdDecl(); |
| 5090 | |
| 5091 | case PREDEF_DECL_OBJC_SEL_ID: |
| 5092 | return Context.getObjCSelDecl(); |
| 5093 | |
| 5094 | case PREDEF_DECL_OBJC_CLASS_ID: |
| 5095 | return Context.getObjCClassDecl(); |
| 5096 | |
| 5097 | case PREDEF_DECL_OBJC_PROTOCOL_ID: |
| 5098 | return Context.getObjCProtocolDecl(); |
| 5099 | |
| 5100 | case PREDEF_DECL_INT_128_ID: |
| 5101 | return Context.getInt128Decl(); |
| 5102 | |
| 5103 | case PREDEF_DECL_UNSIGNED_INT_128_ID: |
| 5104 | return Context.getUInt128Decl(); |
| 5105 | |
| 5106 | case PREDEF_DECL_OBJC_INSTANCETYPE_ID: |
| 5107 | return Context.getObjCInstanceTypeDecl(); |
| 5108 | |
| 5109 | case PREDEF_DECL_BUILTIN_VA_LIST_ID: |
| 5110 | return Context.getBuiltinVaListDecl(); |
| 5111 | } |
| 5112 | } |
| 5113 | |
| 5114 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; |
| 5115 | |
| 5116 | if (Index >= DeclsLoaded.size()) { |
| 5117 | assert(0 && "declaration ID out-of-range for AST file"); |
| 5118 | Error("declaration ID out-of-range for AST file"); |
| 5119 | return 0; |
| 5120 | } |
| 5121 | |
| 5122 | if (!DeclsLoaded[Index]) { |
| 5123 | ReadDeclRecord(ID); |
| 5124 | if (DeserializationListener) |
| 5125 | DeserializationListener->DeclRead(ID, DeclsLoaded[Index]); |
| 5126 | } |
| 5127 | |
| 5128 | return DeclsLoaded[Index]; |
| 5129 | } |
| 5130 | |
| 5131 | DeclID ASTReader::mapGlobalIDToModuleFileGlobalID(ModuleFile &M, |
| 5132 | DeclID GlobalID) { |
| 5133 | if (GlobalID < NUM_PREDEF_DECL_IDS) |
| 5134 | return GlobalID; |
| 5135 | |
| 5136 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(GlobalID); |
| 5137 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| 5138 | ModuleFile *Owner = I->second; |
| 5139 | |
| 5140 | llvm::DenseMap<ModuleFile *, serialization::DeclID>::iterator Pos |
| 5141 | = M.GlobalToLocalDeclIDs.find(Owner); |
| 5142 | if (Pos == M.GlobalToLocalDeclIDs.end()) |
| 5143 | return 0; |
| 5144 | |
| 5145 | return GlobalID - Owner->BaseDeclID + Pos->second; |
| 5146 | } |
| 5147 | |
| 5148 | serialization::DeclID ASTReader::ReadDeclID(ModuleFile &F, |
| 5149 | const RecordData &Record, |
| 5150 | unsigned &Idx) { |
| 5151 | if (Idx >= Record.size()) { |
| 5152 | Error("Corrupted AST file"); |
| 5153 | return 0; |
| 5154 | } |
| 5155 | |
| 5156 | return getGlobalDeclID(F, Record[Idx++]); |
| 5157 | } |
| 5158 | |
| 5159 | /// \brief Resolve the offset of a statement into a statement. |
| 5160 | /// |
| 5161 | /// This operation will read a new statement from the external |
| 5162 | /// source each time it is called, and is meant to be used via a |
| 5163 | /// LazyOffsetPtr (which is used by Decls for the body of functions, etc). |
| 5164 | Stmt *ASTReader::GetExternalDeclStmt(uint64_t Offset) { |
| 5165 | // Switch case IDs are per Decl. |
| 5166 | ClearSwitchCaseIDs(); |
| 5167 | |
| 5168 | // Offset here is a global offset across the entire chain. |
| 5169 | RecordLocation Loc = getLocalBitOffset(Offset); |
| 5170 | Loc.F->DeclsCursor.JumpToBit(Loc.Offset); |
| 5171 | return ReadStmtFromStream(*Loc.F); |
| 5172 | } |
| 5173 | |
| 5174 | namespace { |
| 5175 | class FindExternalLexicalDeclsVisitor { |
| 5176 | ASTReader &Reader; |
| 5177 | const DeclContext *DC; |
| 5178 | bool (*isKindWeWant)(Decl::Kind); |
| 5179 | |
| 5180 | SmallVectorImpl<Decl*> &Decls; |
| 5181 | bool PredefsVisited[NUM_PREDEF_DECL_IDS]; |
| 5182 | |
| 5183 | public: |
| 5184 | FindExternalLexicalDeclsVisitor(ASTReader &Reader, const DeclContext *DC, |
| 5185 | bool (*isKindWeWant)(Decl::Kind), |
| 5186 | SmallVectorImpl<Decl*> &Decls) |
| 5187 | : Reader(Reader), DC(DC), isKindWeWant(isKindWeWant), Decls(Decls) |
| 5188 | { |
| 5189 | for (unsigned I = 0; I != NUM_PREDEF_DECL_IDS; ++I) |
| 5190 | PredefsVisited[I] = false; |
| 5191 | } |
| 5192 | |
| 5193 | static bool visit(ModuleFile &M, bool Preorder, void *UserData) { |
| 5194 | if (Preorder) |
| 5195 | return false; |
| 5196 | |
| 5197 | FindExternalLexicalDeclsVisitor *This |
| 5198 | = static_cast<FindExternalLexicalDeclsVisitor *>(UserData); |
| 5199 | |
| 5200 | ModuleFile::DeclContextInfosMap::iterator Info |
| 5201 | = M.DeclContextInfos.find(This->DC); |
| 5202 | if (Info == M.DeclContextInfos.end() || !Info->second.LexicalDecls) |
| 5203 | return false; |
| 5204 | |
| 5205 | // Load all of the declaration IDs |
| 5206 | for (const KindDeclIDPair *ID = Info->second.LexicalDecls, |
| 5207 | *IDE = ID + Info->second.NumLexicalDecls; |
| 5208 | ID != IDE; ++ID) { |
| 5209 | if (This->isKindWeWant && !This->isKindWeWant((Decl::Kind)ID->first)) |
| 5210 | continue; |
| 5211 | |
| 5212 | // Don't add predefined declarations to the lexical context more |
| 5213 | // than once. |
| 5214 | if (ID->second < NUM_PREDEF_DECL_IDS) { |
| 5215 | if (This->PredefsVisited[ID->second]) |
| 5216 | continue; |
| 5217 | |
| 5218 | This->PredefsVisited[ID->second] = true; |
| 5219 | } |
| 5220 | |
| 5221 | if (Decl *D = This->Reader.GetLocalDecl(M, ID->second)) { |
| 5222 | if (!This->DC->isDeclInLexicalTraversal(D)) |
| 5223 | This->Decls.push_back(D); |
| 5224 | } |
| 5225 | } |
| 5226 | |
| 5227 | return false; |
| 5228 | } |
| 5229 | }; |
| 5230 | } |
| 5231 | |
| 5232 | ExternalLoadResult ASTReader::FindExternalLexicalDecls(const DeclContext *DC, |
| 5233 | bool (*isKindWeWant)(Decl::Kind), |
| 5234 | SmallVectorImpl<Decl*> &Decls) { |
| 5235 | // There might be lexical decls in multiple modules, for the TU at |
| 5236 | // least. Walk all of the modules in the order they were loaded. |
| 5237 | FindExternalLexicalDeclsVisitor Visitor(*this, DC, isKindWeWant, Decls); |
| 5238 | ModuleMgr.visitDepthFirst(&FindExternalLexicalDeclsVisitor::visit, &Visitor); |
| 5239 | ++NumLexicalDeclContextsRead; |
| 5240 | return ELR_Success; |
| 5241 | } |
| 5242 | |
| 5243 | namespace { |
| 5244 | |
| 5245 | class DeclIDComp { |
| 5246 | ASTReader &Reader; |
| 5247 | ModuleFile &Mod; |
| 5248 | |
| 5249 | public: |
| 5250 | DeclIDComp(ASTReader &Reader, ModuleFile &M) : Reader(Reader), Mod(M) {} |
| 5251 | |
| 5252 | bool operator()(LocalDeclID L, LocalDeclID R) const { |
| 5253 | SourceLocation LHS = getLocation(L); |
| 5254 | SourceLocation RHS = getLocation(R); |
| 5255 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 5256 | } |
| 5257 | |
| 5258 | bool operator()(SourceLocation LHS, LocalDeclID R) const { |
| 5259 | SourceLocation RHS = getLocation(R); |
| 5260 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 5261 | } |
| 5262 | |
| 5263 | bool operator()(LocalDeclID L, SourceLocation RHS) const { |
| 5264 | SourceLocation LHS = getLocation(L); |
| 5265 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); |
| 5266 | } |
| 5267 | |
| 5268 | SourceLocation getLocation(LocalDeclID ID) const { |
| 5269 | return Reader.getSourceManager().getFileLoc( |
| 5270 | Reader.getSourceLocationForDeclID(Reader.getGlobalDeclID(Mod, ID))); |
| 5271 | } |
| 5272 | }; |
| 5273 | |
| 5274 | } |
| 5275 | |
| 5276 | void ASTReader::FindFileRegionDecls(FileID File, |
| 5277 | unsigned Offset, unsigned Length, |
| 5278 | SmallVectorImpl<Decl *> &Decls) { |
| 5279 | SourceManager &SM = getSourceManager(); |
| 5280 | |
| 5281 | llvm::DenseMap<FileID, FileDeclsInfo>::iterator I = FileDeclIDs.find(File); |
| 5282 | if (I == FileDeclIDs.end()) |
| 5283 | return; |
| 5284 | |
| 5285 | FileDeclsInfo &DInfo = I->second; |
| 5286 | if (DInfo.Decls.empty()) |
| 5287 | return; |
| 5288 | |
| 5289 | SourceLocation |
| 5290 | BeginLoc = SM.getLocForStartOfFile(File).getLocWithOffset(Offset); |
| 5291 | SourceLocation EndLoc = BeginLoc.getLocWithOffset(Length); |
| 5292 | |
| 5293 | DeclIDComp DIDComp(*this, *DInfo.Mod); |
| 5294 | ArrayRef<serialization::LocalDeclID>::iterator |
| 5295 | BeginIt = std::lower_bound(DInfo.Decls.begin(), DInfo.Decls.end(), |
| 5296 | BeginLoc, DIDComp); |
| 5297 | if (BeginIt != DInfo.Decls.begin()) |
| 5298 | --BeginIt; |
| 5299 | |
| 5300 | // If we are pointing at a top-level decl inside an objc container, we need |
| 5301 | // to backtrack until we find it otherwise we will fail to report that the |
| 5302 | // region overlaps with an objc container. |
| 5303 | while (BeginIt != DInfo.Decls.begin() && |
| 5304 | GetDecl(getGlobalDeclID(*DInfo.Mod, *BeginIt)) |
| 5305 | ->isTopLevelDeclInObjCContainer()) |
| 5306 | --BeginIt; |
| 5307 | |
| 5308 | ArrayRef<serialization::LocalDeclID>::iterator |
| 5309 | EndIt = std::upper_bound(DInfo.Decls.begin(), DInfo.Decls.end(), |
| 5310 | EndLoc, DIDComp); |
| 5311 | if (EndIt != DInfo.Decls.end()) |
| 5312 | ++EndIt; |
| 5313 | |
| 5314 | for (ArrayRef<serialization::LocalDeclID>::iterator |
| 5315 | DIt = BeginIt; DIt != EndIt; ++DIt) |
| 5316 | Decls.push_back(GetDecl(getGlobalDeclID(*DInfo.Mod, *DIt))); |
| 5317 | } |
| 5318 | |
| 5319 | namespace { |
| 5320 | /// \brief ModuleFile visitor used to perform name lookup into a |
| 5321 | /// declaration context. |
| 5322 | class DeclContextNameLookupVisitor { |
| 5323 | ASTReader &Reader; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5324 | SmallVectorImpl<const DeclContext *> &Contexts; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5325 | DeclarationName Name; |
| 5326 | SmallVectorImpl<NamedDecl *> &Decls; |
| 5327 | |
| 5328 | public: |
| 5329 | DeclContextNameLookupVisitor(ASTReader &Reader, |
| 5330 | SmallVectorImpl<const DeclContext *> &Contexts, |
| 5331 | DeclarationName Name, |
| 5332 | SmallVectorImpl<NamedDecl *> &Decls) |
| 5333 | : Reader(Reader), Contexts(Contexts), Name(Name), Decls(Decls) { } |
| 5334 | |
| 5335 | static bool visit(ModuleFile &M, void *UserData) { |
| 5336 | DeclContextNameLookupVisitor *This |
| 5337 | = static_cast<DeclContextNameLookupVisitor *>(UserData); |
| 5338 | |
| 5339 | // Check whether we have any visible declaration information for |
| 5340 | // this context in this module. |
| 5341 | ModuleFile::DeclContextInfosMap::iterator Info; |
| 5342 | bool FoundInfo = false; |
| 5343 | for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) { |
| 5344 | Info = M.DeclContextInfos.find(This->Contexts[I]); |
| 5345 | if (Info != M.DeclContextInfos.end() && |
| 5346 | Info->second.NameLookupTableData) { |
| 5347 | FoundInfo = true; |
| 5348 | break; |
| 5349 | } |
| 5350 | } |
| 5351 | |
| 5352 | if (!FoundInfo) |
| 5353 | return false; |
| 5354 | |
| 5355 | // Look for this name within this module. |
| 5356 | ASTDeclContextNameLookupTable *LookupTable = |
| 5357 | Info->second.NameLookupTableData; |
| 5358 | ASTDeclContextNameLookupTable::iterator Pos |
| 5359 | = LookupTable->find(This->Name); |
| 5360 | if (Pos == LookupTable->end()) |
| 5361 | return false; |
| 5362 | |
| 5363 | bool FoundAnything = false; |
| 5364 | ASTDeclContextNameLookupTrait::data_type Data = *Pos; |
| 5365 | for (; Data.first != Data.second; ++Data.first) { |
| 5366 | NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, *Data.first); |
| 5367 | if (!ND) |
| 5368 | continue; |
| 5369 | |
| 5370 | if (ND->getDeclName() != This->Name) { |
| 5371 | // A name might be null because the decl's redeclarable part is |
| 5372 | // currently read before reading its name. The lookup is triggered by |
| 5373 | // building that decl (likely indirectly), and so it is later in the |
| 5374 | // sense of "already existing" and can be ignored here. |
| 5375 | continue; |
| 5376 | } |
| 5377 | |
| 5378 | // Record this declaration. |
| 5379 | FoundAnything = true; |
| 5380 | This->Decls.push_back(ND); |
| 5381 | } |
| 5382 | |
| 5383 | return FoundAnything; |
| 5384 | } |
| 5385 | }; |
| 5386 | } |
| 5387 | |
| 5388 | DeclContext::lookup_result |
| 5389 | ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC, |
| 5390 | DeclarationName Name) { |
| 5391 | assert(DC->hasExternalVisibleStorage() && |
| 5392 | "DeclContext has no visible decls in storage"); |
| 5393 | if (!Name) |
| 5394 | return DeclContext::lookup_result(DeclContext::lookup_iterator(0), |
| 5395 | DeclContext::lookup_iterator(0)); |
| 5396 | |
| 5397 | SmallVector<NamedDecl *, 64> Decls; |
| 5398 | |
| 5399 | // Compute the declaration contexts we need to look into. Multiple such |
| 5400 | // declaration contexts occur when two declaration contexts from disjoint |
| 5401 | // modules get merged, e.g., when two namespaces with the same name are |
| 5402 | // independently defined in separate modules. |
| 5403 | SmallVector<const DeclContext *, 2> Contexts; |
| 5404 | Contexts.push_back(DC); |
| 5405 | |
| 5406 | if (DC->isNamespace()) { |
| 5407 | MergedDeclsMap::iterator Merged |
| 5408 | = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC))); |
| 5409 | if (Merged != MergedDecls.end()) { |
| 5410 | for (unsigned I = 0, N = Merged->second.size(); I != N; ++I) |
| 5411 | Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I]))); |
| 5412 | } |
| 5413 | } |
| 5414 | |
| 5415 | DeclContextNameLookupVisitor Visitor(*this, Contexts, Name, Decls); |
| 5416 | ModuleMgr.visit(&DeclContextNameLookupVisitor::visit, &Visitor); |
| 5417 | ++NumVisibleDeclContextsRead; |
| 5418 | SetExternalVisibleDeclsForName(DC, Name, Decls); |
| 5419 | return const_cast<DeclContext*>(DC)->lookup(Name); |
| 5420 | } |
| 5421 | |
| 5422 | namespace { |
| 5423 | /// \brief ModuleFile visitor used to retrieve all visible names in a |
| 5424 | /// declaration context. |
| 5425 | class DeclContextAllNamesVisitor { |
| 5426 | ASTReader &Reader; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5427 | SmallVectorImpl<const DeclContext *> &Contexts; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5428 | llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > &Decls; |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5429 | bool VisitAll; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5430 | |
| 5431 | public: |
| 5432 | DeclContextAllNamesVisitor(ASTReader &Reader, |
| 5433 | SmallVectorImpl<const DeclContext *> &Contexts, |
| 5434 | llvm::DenseMap<DeclarationName, |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5435 | SmallVector<NamedDecl *, 8> > &Decls, |
| 5436 | bool VisitAll) |
| 5437 | : Reader(Reader), Contexts(Contexts), Decls(Decls), VisitAll(VisitAll) { } |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5438 | |
| 5439 | static bool visit(ModuleFile &M, void *UserData) { |
| 5440 | DeclContextAllNamesVisitor *This |
| 5441 | = static_cast<DeclContextAllNamesVisitor *>(UserData); |
| 5442 | |
| 5443 | // Check whether we have any visible declaration information for |
| 5444 | // this context in this module. |
| 5445 | ModuleFile::DeclContextInfosMap::iterator Info; |
| 5446 | bool FoundInfo = false; |
| 5447 | for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) { |
| 5448 | Info = M.DeclContextInfos.find(This->Contexts[I]); |
| 5449 | if (Info != M.DeclContextInfos.end() && |
| 5450 | Info->second.NameLookupTableData) { |
| 5451 | FoundInfo = true; |
| 5452 | break; |
| 5453 | } |
| 5454 | } |
| 5455 | |
| 5456 | if (!FoundInfo) |
| 5457 | return false; |
| 5458 | |
| 5459 | ASTDeclContextNameLookupTable *LookupTable = |
| 5460 | Info->second.NameLookupTableData; |
| 5461 | bool FoundAnything = false; |
| 5462 | for (ASTDeclContextNameLookupTable::data_iterator |
| 5463 | I = LookupTable->data_begin(), E = LookupTable->data_end(); |
| 5464 | I != E; ++I) { |
| 5465 | ASTDeclContextNameLookupTrait::data_type Data = *I; |
| 5466 | for (; Data.first != Data.second; ++Data.first) { |
| 5467 | NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, |
| 5468 | *Data.first); |
| 5469 | if (!ND) |
| 5470 | continue; |
| 5471 | |
| 5472 | // Record this declaration. |
| 5473 | FoundAnything = true; |
| 5474 | This->Decls[ND->getDeclName()].push_back(ND); |
| 5475 | } |
| 5476 | } |
| 5477 | |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5478 | return FoundAnything && !This->VisitAll; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5479 | } |
| 5480 | }; |
| 5481 | } |
| 5482 | |
| 5483 | void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) { |
| 5484 | if (!DC->hasExternalVisibleStorage()) |
| 5485 | return; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5486 | llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > Decls; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5487 | |
| 5488 | // Compute the declaration contexts we need to look into. Multiple such |
| 5489 | // declaration contexts occur when two declaration contexts from disjoint |
| 5490 | // modules get merged, e.g., when two namespaces with the same name are |
| 5491 | // independently defined in separate modules. |
| 5492 | SmallVector<const DeclContext *, 2> Contexts; |
| 5493 | Contexts.push_back(DC); |
| 5494 | |
| 5495 | if (DC->isNamespace()) { |
| 5496 | MergedDeclsMap::iterator Merged |
| 5497 | = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC))); |
| 5498 | if (Merged != MergedDecls.end()) { |
| 5499 | for (unsigned I = 0, N = Merged->second.size(); I != N; ++I) |
| 5500 | Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I]))); |
| 5501 | } |
| 5502 | } |
| 5503 | |
Argyrios Kyrtzidis | ca40f30 | 2012-12-19 22:21:18 +0000 | [diff] [blame] | 5504 | DeclContextAllNamesVisitor Visitor(*this, Contexts, Decls, |
| 5505 | /*VisitAll=*/DC->isFileContext()); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5506 | ModuleMgr.visit(&DeclContextAllNamesVisitor::visit, &Visitor); |
| 5507 | ++NumVisibleDeclContextsRead; |
| 5508 | |
| 5509 | for (llvm::DenseMap<DeclarationName, |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5510 | SmallVector<NamedDecl *, 8> >::iterator |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5511 | I = Decls.begin(), E = Decls.end(); I != E; ++I) { |
| 5512 | SetExternalVisibleDeclsForName(DC, I->first, I->second); |
| 5513 | } |
| 5514 | const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false); |
| 5515 | } |
| 5516 | |
| 5517 | /// \brief Under non-PCH compilation the consumer receives the objc methods |
| 5518 | /// before receiving the implementation, and codegen depends on this. |
| 5519 | /// We simulate this by deserializing and passing to consumer the methods of the |
| 5520 | /// implementation before passing the deserialized implementation decl. |
| 5521 | static void PassObjCImplDeclToConsumer(ObjCImplDecl *ImplD, |
| 5522 | ASTConsumer *Consumer) { |
| 5523 | assert(ImplD && Consumer); |
| 5524 | |
| 5525 | for (ObjCImplDecl::method_iterator |
| 5526 | I = ImplD->meth_begin(), E = ImplD->meth_end(); I != E; ++I) |
| 5527 | Consumer->HandleInterestingDecl(DeclGroupRef(*I)); |
| 5528 | |
| 5529 | Consumer->HandleInterestingDecl(DeclGroupRef(ImplD)); |
| 5530 | } |
| 5531 | |
| 5532 | void ASTReader::PassInterestingDeclsToConsumer() { |
| 5533 | assert(Consumer); |
| 5534 | while (!InterestingDecls.empty()) { |
| 5535 | Decl *D = InterestingDecls.front(); |
| 5536 | InterestingDecls.pop_front(); |
| 5537 | |
| 5538 | PassInterestingDeclToConsumer(D); |
| 5539 | } |
| 5540 | } |
| 5541 | |
| 5542 | void ASTReader::PassInterestingDeclToConsumer(Decl *D) { |
| 5543 | if (ObjCImplDecl *ImplD = dyn_cast<ObjCImplDecl>(D)) |
| 5544 | PassObjCImplDeclToConsumer(ImplD, Consumer); |
| 5545 | else |
| 5546 | Consumer->HandleInterestingDecl(DeclGroupRef(D)); |
| 5547 | } |
| 5548 | |
| 5549 | void ASTReader::StartTranslationUnit(ASTConsumer *Consumer) { |
| 5550 | this->Consumer = Consumer; |
| 5551 | |
| 5552 | if (!Consumer) |
| 5553 | return; |
| 5554 | |
| 5555 | for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) { |
| 5556 | // Force deserialization of this decl, which will cause it to be queued for |
| 5557 | // passing to the consumer. |
| 5558 | GetDecl(ExternalDefinitions[I]); |
| 5559 | } |
| 5560 | ExternalDefinitions.clear(); |
| 5561 | |
| 5562 | PassInterestingDeclsToConsumer(); |
| 5563 | } |
| 5564 | |
| 5565 | void ASTReader::PrintStats() { |
| 5566 | std::fprintf(stderr, "*** AST File Statistics:\n"); |
| 5567 | |
| 5568 | unsigned NumTypesLoaded |
| 5569 | = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(), |
| 5570 | QualType()); |
| 5571 | unsigned NumDeclsLoaded |
| 5572 | = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(), |
| 5573 | (Decl *)0); |
| 5574 | unsigned NumIdentifiersLoaded |
| 5575 | = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(), |
| 5576 | IdentifiersLoaded.end(), |
| 5577 | (IdentifierInfo *)0); |
| 5578 | unsigned NumMacrosLoaded |
| 5579 | = MacrosLoaded.size() - std::count(MacrosLoaded.begin(), |
| 5580 | MacrosLoaded.end(), |
| 5581 | (MacroInfo *)0); |
| 5582 | unsigned NumSelectorsLoaded |
| 5583 | = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(), |
| 5584 | SelectorsLoaded.end(), |
| 5585 | Selector()); |
| 5586 | |
| 5587 | if (unsigned TotalNumSLocEntries = getTotalNumSLocs()) |
| 5588 | std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n", |
| 5589 | NumSLocEntriesRead, TotalNumSLocEntries, |
| 5590 | ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100)); |
| 5591 | if (!TypesLoaded.empty()) |
| 5592 | std::fprintf(stderr, " %u/%u types read (%f%%)\n", |
| 5593 | NumTypesLoaded, (unsigned)TypesLoaded.size(), |
| 5594 | ((float)NumTypesLoaded/TypesLoaded.size() * 100)); |
| 5595 | if (!DeclsLoaded.empty()) |
| 5596 | std::fprintf(stderr, " %u/%u declarations read (%f%%)\n", |
| 5597 | NumDeclsLoaded, (unsigned)DeclsLoaded.size(), |
| 5598 | ((float)NumDeclsLoaded/DeclsLoaded.size() * 100)); |
| 5599 | if (!IdentifiersLoaded.empty()) |
| 5600 | std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n", |
| 5601 | NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(), |
| 5602 | ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100)); |
| 5603 | if (!MacrosLoaded.empty()) |
| 5604 | std::fprintf(stderr, " %u/%u macros read (%f%%)\n", |
| 5605 | NumMacrosLoaded, (unsigned)MacrosLoaded.size(), |
| 5606 | ((float)NumMacrosLoaded/MacrosLoaded.size() * 100)); |
| 5607 | if (!SelectorsLoaded.empty()) |
| 5608 | std::fprintf(stderr, " %u/%u selectors read (%f%%)\n", |
| 5609 | NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(), |
| 5610 | ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100)); |
| 5611 | if (TotalNumStatements) |
| 5612 | std::fprintf(stderr, " %u/%u statements read (%f%%)\n", |
| 5613 | NumStatementsRead, TotalNumStatements, |
| 5614 | ((float)NumStatementsRead/TotalNumStatements * 100)); |
| 5615 | if (TotalNumMacros) |
| 5616 | std::fprintf(stderr, " %u/%u macros read (%f%%)\n", |
| 5617 | NumMacrosRead, TotalNumMacros, |
| 5618 | ((float)NumMacrosRead/TotalNumMacros * 100)); |
| 5619 | if (TotalLexicalDeclContexts) |
| 5620 | std::fprintf(stderr, " %u/%u lexical declcontexts read (%f%%)\n", |
| 5621 | NumLexicalDeclContextsRead, TotalLexicalDeclContexts, |
| 5622 | ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts |
| 5623 | * 100)); |
| 5624 | if (TotalVisibleDeclContexts) |
| 5625 | std::fprintf(stderr, " %u/%u visible declcontexts read (%f%%)\n", |
| 5626 | NumVisibleDeclContextsRead, TotalVisibleDeclContexts, |
| 5627 | ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts |
| 5628 | * 100)); |
| 5629 | if (TotalNumMethodPoolEntries) { |
| 5630 | std::fprintf(stderr, " %u/%u method pool entries read (%f%%)\n", |
| 5631 | NumMethodPoolEntriesRead, TotalNumMethodPoolEntries, |
| 5632 | ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries |
| 5633 | * 100)); |
| 5634 | std::fprintf(stderr, " %u method pool misses\n", NumMethodPoolMisses); |
| 5635 | } |
| 5636 | std::fprintf(stderr, "\n"); |
| 5637 | dump(); |
| 5638 | std::fprintf(stderr, "\n"); |
| 5639 | } |
| 5640 | |
| 5641 | template<typename Key, typename ModuleFile, unsigned InitialCapacity> |
| 5642 | static void |
| 5643 | dumpModuleIDMap(StringRef Name, |
| 5644 | const ContinuousRangeMap<Key, ModuleFile *, |
| 5645 | InitialCapacity> &Map) { |
| 5646 | if (Map.begin() == Map.end()) |
| 5647 | return; |
| 5648 | |
| 5649 | typedef ContinuousRangeMap<Key, ModuleFile *, InitialCapacity> MapType; |
| 5650 | llvm::errs() << Name << ":\n"; |
| 5651 | for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end(); |
| 5652 | I != IEnd; ++I) { |
| 5653 | llvm::errs() << " " << I->first << " -> " << I->second->FileName |
| 5654 | << "\n"; |
| 5655 | } |
| 5656 | } |
| 5657 | |
| 5658 | void ASTReader::dump() { |
| 5659 | llvm::errs() << "*** PCH/ModuleFile Remappings:\n"; |
| 5660 | dumpModuleIDMap("Global bit offset map", GlobalBitOffsetsMap); |
| 5661 | dumpModuleIDMap("Global source location entry map", GlobalSLocEntryMap); |
| 5662 | dumpModuleIDMap("Global type map", GlobalTypeMap); |
| 5663 | dumpModuleIDMap("Global declaration map", GlobalDeclMap); |
| 5664 | dumpModuleIDMap("Global identifier map", GlobalIdentifierMap); |
| 5665 | dumpModuleIDMap("Global macro map", GlobalMacroMap); |
| 5666 | dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap); |
| 5667 | dumpModuleIDMap("Global selector map", GlobalSelectorMap); |
| 5668 | dumpModuleIDMap("Global preprocessed entity map", |
| 5669 | GlobalPreprocessedEntityMap); |
| 5670 | |
| 5671 | llvm::errs() << "\n*** PCH/Modules Loaded:"; |
| 5672 | for (ModuleManager::ModuleConstIterator M = ModuleMgr.begin(), |
| 5673 | MEnd = ModuleMgr.end(); |
| 5674 | M != MEnd; ++M) |
| 5675 | (*M)->dump(); |
| 5676 | } |
| 5677 | |
| 5678 | /// Return the amount of memory used by memory buffers, breaking down |
| 5679 | /// by heap-backed versus mmap'ed memory. |
| 5680 | void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const { |
| 5681 | for (ModuleConstIterator I = ModuleMgr.begin(), |
| 5682 | E = ModuleMgr.end(); I != E; ++I) { |
| 5683 | if (llvm::MemoryBuffer *buf = (*I)->Buffer.get()) { |
| 5684 | size_t bytes = buf->getBufferSize(); |
| 5685 | switch (buf->getBufferKind()) { |
| 5686 | case llvm::MemoryBuffer::MemoryBuffer_Malloc: |
| 5687 | sizes.malloc_bytes += bytes; |
| 5688 | break; |
| 5689 | case llvm::MemoryBuffer::MemoryBuffer_MMap: |
| 5690 | sizes.mmap_bytes += bytes; |
| 5691 | break; |
| 5692 | } |
| 5693 | } |
| 5694 | } |
| 5695 | } |
| 5696 | |
| 5697 | void ASTReader::InitializeSema(Sema &S) { |
| 5698 | SemaObj = &S; |
| 5699 | S.addExternalSource(this); |
| 5700 | |
| 5701 | // Makes sure any declarations that were deserialized "too early" |
| 5702 | // still get added to the identifier's declaration chains. |
| 5703 | for (unsigned I = 0, N = PreloadedDecls.size(); I != N; ++I) { |
| 5704 | SemaObj->pushExternalDeclIntoScope(PreloadedDecls[I], |
| 5705 | PreloadedDecls[I]->getDeclName()); |
| 5706 | } |
| 5707 | PreloadedDecls.clear(); |
| 5708 | |
| 5709 | // Load the offsets of the declarations that Sema references. |
| 5710 | // They will be lazily deserialized when needed. |
| 5711 | if (!SemaDeclRefs.empty()) { |
| 5712 | assert(SemaDeclRefs.size() == 2 && "More decl refs than expected!"); |
| 5713 | if (!SemaObj->StdNamespace) |
| 5714 | SemaObj->StdNamespace = SemaDeclRefs[0]; |
| 5715 | if (!SemaObj->StdBadAlloc) |
| 5716 | SemaObj->StdBadAlloc = SemaDeclRefs[1]; |
| 5717 | } |
| 5718 | |
| 5719 | if (!FPPragmaOptions.empty()) { |
| 5720 | assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS"); |
| 5721 | SemaObj->FPFeatures.fp_contract = FPPragmaOptions[0]; |
| 5722 | } |
| 5723 | |
| 5724 | if (!OpenCLExtensions.empty()) { |
| 5725 | unsigned I = 0; |
| 5726 | #define OPENCLEXT(nm) SemaObj->OpenCLFeatures.nm = OpenCLExtensions[I++]; |
| 5727 | #include "clang/Basic/OpenCLExtensions.def" |
| 5728 | |
| 5729 | assert(OpenCLExtensions.size() == I && "Wrong number of OPENCL_EXTENSIONS"); |
| 5730 | } |
| 5731 | } |
| 5732 | |
| 5733 | IdentifierInfo* ASTReader::get(const char *NameStart, const char *NameEnd) { |
| 5734 | // Note that we are loading an identifier. |
| 5735 | Deserializing AnIdentifier(this); |
| 5736 | |
| 5737 | IdentifierLookupVisitor Visitor(StringRef(NameStart, NameEnd - NameStart), |
| 5738 | /*PriorGeneration=*/0); |
| 5739 | ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor); |
| 5740 | IdentifierInfo *II = Visitor.getIdentifierInfo(); |
| 5741 | markIdentifierUpToDate(II); |
| 5742 | return II; |
| 5743 | } |
| 5744 | |
| 5745 | namespace clang { |
| 5746 | /// \brief An identifier-lookup iterator that enumerates all of the |
| 5747 | /// identifiers stored within a set of AST files. |
| 5748 | class ASTIdentifierIterator : public IdentifierIterator { |
| 5749 | /// \brief The AST reader whose identifiers are being enumerated. |
| 5750 | const ASTReader &Reader; |
| 5751 | |
| 5752 | /// \brief The current index into the chain of AST files stored in |
| 5753 | /// the AST reader. |
| 5754 | unsigned Index; |
| 5755 | |
| 5756 | /// \brief The current position within the identifier lookup table |
| 5757 | /// of the current AST file. |
| 5758 | ASTIdentifierLookupTable::key_iterator Current; |
| 5759 | |
| 5760 | /// \brief The end position within the identifier lookup table of |
| 5761 | /// the current AST file. |
| 5762 | ASTIdentifierLookupTable::key_iterator End; |
| 5763 | |
| 5764 | public: |
| 5765 | explicit ASTIdentifierIterator(const ASTReader &Reader); |
| 5766 | |
| 5767 | virtual StringRef Next(); |
| 5768 | }; |
| 5769 | } |
| 5770 | |
| 5771 | ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader) |
| 5772 | : Reader(Reader), Index(Reader.ModuleMgr.size() - 1) { |
| 5773 | ASTIdentifierLookupTable *IdTable |
| 5774 | = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].IdentifierLookupTable; |
| 5775 | Current = IdTable->key_begin(); |
| 5776 | End = IdTable->key_end(); |
| 5777 | } |
| 5778 | |
| 5779 | StringRef ASTIdentifierIterator::Next() { |
| 5780 | while (Current == End) { |
| 5781 | // If we have exhausted all of our AST files, we're done. |
| 5782 | if (Index == 0) |
| 5783 | return StringRef(); |
| 5784 | |
| 5785 | --Index; |
| 5786 | ASTIdentifierLookupTable *IdTable |
| 5787 | = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index]. |
| 5788 | IdentifierLookupTable; |
| 5789 | Current = IdTable->key_begin(); |
| 5790 | End = IdTable->key_end(); |
| 5791 | } |
| 5792 | |
| 5793 | // We have any identifiers remaining in the current AST file; return |
| 5794 | // the next one. |
| 5795 | std::pair<const char*, unsigned> Key = *Current; |
| 5796 | ++Current; |
| 5797 | return StringRef(Key.first, Key.second); |
| 5798 | } |
| 5799 | |
| 5800 | IdentifierIterator *ASTReader::getIdentifiers() const { |
| 5801 | return new ASTIdentifierIterator(*this); |
| 5802 | } |
| 5803 | |
| 5804 | namespace clang { namespace serialization { |
| 5805 | class ReadMethodPoolVisitor { |
| 5806 | ASTReader &Reader; |
| 5807 | Selector Sel; |
| 5808 | unsigned PriorGeneration; |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 5809 | SmallVector<ObjCMethodDecl *, 4> InstanceMethods; |
| 5810 | SmallVector<ObjCMethodDecl *, 4> FactoryMethods; |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5811 | |
| 5812 | public: |
| 5813 | ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel, |
| 5814 | unsigned PriorGeneration) |
| 5815 | : Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) { } |
| 5816 | |
| 5817 | static bool visit(ModuleFile &M, void *UserData) { |
| 5818 | ReadMethodPoolVisitor *This |
| 5819 | = static_cast<ReadMethodPoolVisitor *>(UserData); |
| 5820 | |
| 5821 | if (!M.SelectorLookupTable) |
| 5822 | return false; |
| 5823 | |
| 5824 | // If we've already searched this module file, skip it now. |
| 5825 | if (M.Generation <= This->PriorGeneration) |
| 5826 | return true; |
| 5827 | |
| 5828 | ASTSelectorLookupTable *PoolTable |
| 5829 | = (ASTSelectorLookupTable*)M.SelectorLookupTable; |
| 5830 | ASTSelectorLookupTable::iterator Pos = PoolTable->find(This->Sel); |
| 5831 | if (Pos == PoolTable->end()) |
| 5832 | return false; |
| 5833 | |
| 5834 | ++This->Reader.NumSelectorsRead; |
| 5835 | // FIXME: Not quite happy with the statistics here. We probably should |
| 5836 | // disable this tracking when called via LoadSelector. |
| 5837 | // Also, should entries without methods count as misses? |
| 5838 | ++This->Reader.NumMethodPoolEntriesRead; |
| 5839 | ASTSelectorLookupTrait::data_type Data = *Pos; |
| 5840 | if (This->Reader.DeserializationListener) |
| 5841 | This->Reader.DeserializationListener->SelectorRead(Data.ID, |
| 5842 | This->Sel); |
| 5843 | |
| 5844 | This->InstanceMethods.append(Data.Instance.begin(), Data.Instance.end()); |
| 5845 | This->FactoryMethods.append(Data.Factory.begin(), Data.Factory.end()); |
| 5846 | return true; |
| 5847 | } |
| 5848 | |
| 5849 | /// \brief Retrieve the instance methods found by this visitor. |
| 5850 | ArrayRef<ObjCMethodDecl *> getInstanceMethods() const { |
| 5851 | return InstanceMethods; |
| 5852 | } |
| 5853 | |
| 5854 | /// \brief Retrieve the instance methods found by this visitor. |
| 5855 | ArrayRef<ObjCMethodDecl *> getFactoryMethods() const { |
| 5856 | return FactoryMethods; |
| 5857 | } |
| 5858 | }; |
| 5859 | } } // end namespace clang::serialization |
| 5860 | |
| 5861 | /// \brief Add the given set of methods to the method list. |
| 5862 | static void addMethodsToPool(Sema &S, ArrayRef<ObjCMethodDecl *> Methods, |
| 5863 | ObjCMethodList &List) { |
| 5864 | for (unsigned I = 0, N = Methods.size(); I != N; ++I) { |
| 5865 | S.addMethodToGlobalList(&List, Methods[I]); |
| 5866 | } |
| 5867 | } |
| 5868 | |
| 5869 | void ASTReader::ReadMethodPool(Selector Sel) { |
| 5870 | // Get the selector generation and update it to the current generation. |
| 5871 | unsigned &Generation = SelectorGeneration[Sel]; |
| 5872 | unsigned PriorGeneration = Generation; |
| 5873 | Generation = CurrentGeneration; |
| 5874 | |
| 5875 | // Search for methods defined with this selector. |
| 5876 | ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration); |
| 5877 | ModuleMgr.visit(&ReadMethodPoolVisitor::visit, &Visitor); |
| 5878 | |
| 5879 | if (Visitor.getInstanceMethods().empty() && |
| 5880 | Visitor.getFactoryMethods().empty()) { |
| 5881 | ++NumMethodPoolMisses; |
| 5882 | return; |
| 5883 | } |
| 5884 | |
| 5885 | if (!getSema()) |
| 5886 | return; |
| 5887 | |
| 5888 | Sema &S = *getSema(); |
| 5889 | Sema::GlobalMethodPool::iterator Pos |
| 5890 | = S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first; |
| 5891 | |
| 5892 | addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first); |
| 5893 | addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second); |
| 5894 | } |
| 5895 | |
| 5896 | void ASTReader::ReadKnownNamespaces( |
| 5897 | SmallVectorImpl<NamespaceDecl *> &Namespaces) { |
| 5898 | Namespaces.clear(); |
| 5899 | |
| 5900 | for (unsigned I = 0, N = KnownNamespaces.size(); I != N; ++I) { |
| 5901 | if (NamespaceDecl *Namespace |
| 5902 | = dyn_cast_or_null<NamespaceDecl>(GetDecl(KnownNamespaces[I]))) |
| 5903 | Namespaces.push_back(Namespace); |
| 5904 | } |
| 5905 | } |
| 5906 | |
| 5907 | void ASTReader::ReadTentativeDefinitions( |
| 5908 | SmallVectorImpl<VarDecl *> &TentativeDefs) { |
| 5909 | for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) { |
| 5910 | VarDecl *Var = dyn_cast_or_null<VarDecl>(GetDecl(TentativeDefinitions[I])); |
| 5911 | if (Var) |
| 5912 | TentativeDefs.push_back(Var); |
| 5913 | } |
| 5914 | TentativeDefinitions.clear(); |
| 5915 | } |
| 5916 | |
| 5917 | void ASTReader::ReadUnusedFileScopedDecls( |
| 5918 | SmallVectorImpl<const DeclaratorDecl *> &Decls) { |
| 5919 | for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) { |
| 5920 | DeclaratorDecl *D |
| 5921 | = dyn_cast_or_null<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I])); |
| 5922 | if (D) |
| 5923 | Decls.push_back(D); |
| 5924 | } |
| 5925 | UnusedFileScopedDecls.clear(); |
| 5926 | } |
| 5927 | |
| 5928 | void ASTReader::ReadDelegatingConstructors( |
| 5929 | SmallVectorImpl<CXXConstructorDecl *> &Decls) { |
| 5930 | for (unsigned I = 0, N = DelegatingCtorDecls.size(); I != N; ++I) { |
| 5931 | CXXConstructorDecl *D |
| 5932 | = dyn_cast_or_null<CXXConstructorDecl>(GetDecl(DelegatingCtorDecls[I])); |
| 5933 | if (D) |
| 5934 | Decls.push_back(D); |
| 5935 | } |
| 5936 | DelegatingCtorDecls.clear(); |
| 5937 | } |
| 5938 | |
| 5939 | void ASTReader::ReadExtVectorDecls(SmallVectorImpl<TypedefNameDecl *> &Decls) { |
| 5940 | for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I) { |
| 5941 | TypedefNameDecl *D |
| 5942 | = dyn_cast_or_null<TypedefNameDecl>(GetDecl(ExtVectorDecls[I])); |
| 5943 | if (D) |
| 5944 | Decls.push_back(D); |
| 5945 | } |
| 5946 | ExtVectorDecls.clear(); |
| 5947 | } |
| 5948 | |
| 5949 | void ASTReader::ReadDynamicClasses(SmallVectorImpl<CXXRecordDecl *> &Decls) { |
| 5950 | for (unsigned I = 0, N = DynamicClasses.size(); I != N; ++I) { |
| 5951 | CXXRecordDecl *D |
| 5952 | = dyn_cast_or_null<CXXRecordDecl>(GetDecl(DynamicClasses[I])); |
| 5953 | if (D) |
| 5954 | Decls.push_back(D); |
| 5955 | } |
| 5956 | DynamicClasses.clear(); |
| 5957 | } |
| 5958 | |
| 5959 | void |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 5960 | ASTReader::ReadLocallyScopedExternCDecls(SmallVectorImpl<NamedDecl *> &Decls) { |
| 5961 | for (unsigned I = 0, N = LocallyScopedExternCDecls.size(); I != N; ++I) { |
| 5962 | NamedDecl *D |
| 5963 | = dyn_cast_or_null<NamedDecl>(GetDecl(LocallyScopedExternCDecls[I])); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5964 | if (D) |
| 5965 | Decls.push_back(D); |
| 5966 | } |
Richard Smith | 5ea6ef4 | 2013-01-10 23:43:47 +0000 | [diff] [blame] | 5967 | LocallyScopedExternCDecls.clear(); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 5968 | } |
| 5969 | |
| 5970 | void ASTReader::ReadReferencedSelectors( |
| 5971 | SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) { |
| 5972 | if (ReferencedSelectorsData.empty()) |
| 5973 | return; |
| 5974 | |
| 5975 | // If there are @selector references added them to its pool. This is for |
| 5976 | // implementation of -Wselector. |
| 5977 | unsigned int DataSize = ReferencedSelectorsData.size()-1; |
| 5978 | unsigned I = 0; |
| 5979 | while (I < DataSize) { |
| 5980 | Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]); |
| 5981 | SourceLocation SelLoc |
| 5982 | = SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]); |
| 5983 | Sels.push_back(std::make_pair(Sel, SelLoc)); |
| 5984 | } |
| 5985 | ReferencedSelectorsData.clear(); |
| 5986 | } |
| 5987 | |
| 5988 | void ASTReader::ReadWeakUndeclaredIdentifiers( |
| 5989 | SmallVectorImpl<std::pair<IdentifierInfo *, WeakInfo> > &WeakIDs) { |
| 5990 | if (WeakUndeclaredIdentifiers.empty()) |
| 5991 | return; |
| 5992 | |
| 5993 | for (unsigned I = 0, N = WeakUndeclaredIdentifiers.size(); I < N; /*none*/) { |
| 5994 | IdentifierInfo *WeakId |
| 5995 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]); |
| 5996 | IdentifierInfo *AliasId |
| 5997 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]); |
| 5998 | SourceLocation Loc |
| 5999 | = SourceLocation::getFromRawEncoding(WeakUndeclaredIdentifiers[I++]); |
| 6000 | bool Used = WeakUndeclaredIdentifiers[I++]; |
| 6001 | WeakInfo WI(AliasId, Loc); |
| 6002 | WI.setUsed(Used); |
| 6003 | WeakIDs.push_back(std::make_pair(WeakId, WI)); |
| 6004 | } |
| 6005 | WeakUndeclaredIdentifiers.clear(); |
| 6006 | } |
| 6007 | |
| 6008 | void ASTReader::ReadUsedVTables(SmallVectorImpl<ExternalVTableUse> &VTables) { |
| 6009 | for (unsigned Idx = 0, N = VTableUses.size(); Idx < N; /* In loop */) { |
| 6010 | ExternalVTableUse VT; |
| 6011 | VT.Record = dyn_cast_or_null<CXXRecordDecl>(GetDecl(VTableUses[Idx++])); |
| 6012 | VT.Location = SourceLocation::getFromRawEncoding(VTableUses[Idx++]); |
| 6013 | VT.DefinitionRequired = VTableUses[Idx++]; |
| 6014 | VTables.push_back(VT); |
| 6015 | } |
| 6016 | |
| 6017 | VTableUses.clear(); |
| 6018 | } |
| 6019 | |
| 6020 | void ASTReader::ReadPendingInstantiations( |
| 6021 | SmallVectorImpl<std::pair<ValueDecl *, SourceLocation> > &Pending) { |
| 6022 | for (unsigned Idx = 0, N = PendingInstantiations.size(); Idx < N;) { |
| 6023 | ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++])); |
| 6024 | SourceLocation Loc |
| 6025 | = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]); |
| 6026 | |
| 6027 | Pending.push_back(std::make_pair(D, Loc)); |
| 6028 | } |
| 6029 | PendingInstantiations.clear(); |
| 6030 | } |
| 6031 | |
| 6032 | void ASTReader::LoadSelector(Selector Sel) { |
| 6033 | // It would be complicated to avoid reading the methods anyway. So don't. |
| 6034 | ReadMethodPool(Sel); |
| 6035 | } |
| 6036 | |
| 6037 | void ASTReader::SetIdentifierInfo(IdentifierID ID, IdentifierInfo *II) { |
| 6038 | assert(ID && "Non-zero identifier ID required"); |
| 6039 | assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range"); |
| 6040 | IdentifiersLoaded[ID - 1] = II; |
| 6041 | if (DeserializationListener) |
| 6042 | DeserializationListener->IdentifierRead(ID, II); |
| 6043 | } |
| 6044 | |
| 6045 | /// \brief Set the globally-visible declarations associated with the given |
| 6046 | /// identifier. |
| 6047 | /// |
| 6048 | /// If the AST reader is currently in a state where the given declaration IDs |
| 6049 | /// cannot safely be resolved, they are queued until it is safe to resolve |
| 6050 | /// them. |
| 6051 | /// |
| 6052 | /// \param II an IdentifierInfo that refers to one or more globally-visible |
| 6053 | /// declarations. |
| 6054 | /// |
| 6055 | /// \param DeclIDs the set of declaration IDs with the name @p II that are |
| 6056 | /// visible at global scope. |
| 6057 | /// |
| 6058 | /// \param Nonrecursive should be true to indicate that the caller knows that |
| 6059 | /// this call is non-recursive, and therefore the globally-visible declarations |
| 6060 | /// will not be placed onto the pending queue. |
| 6061 | void |
| 6062 | ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II, |
| 6063 | const SmallVectorImpl<uint32_t> &DeclIDs, |
| 6064 | bool Nonrecursive) { |
| 6065 | if (NumCurrentElementsDeserializing && !Nonrecursive) { |
| 6066 | PendingIdentifierInfos.push_back(PendingIdentifierInfo()); |
| 6067 | PendingIdentifierInfo &PII = PendingIdentifierInfos.back(); |
| 6068 | PII.II = II; |
| 6069 | PII.DeclIDs.append(DeclIDs.begin(), DeclIDs.end()); |
| 6070 | return; |
| 6071 | } |
| 6072 | |
| 6073 | for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) { |
| 6074 | NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I])); |
| 6075 | if (SemaObj) { |
| 6076 | // Introduce this declaration into the translation-unit scope |
| 6077 | // and add it to the declaration chain for this identifier, so |
| 6078 | // that (unqualified) name lookup will find it. |
| 6079 | SemaObj->pushExternalDeclIntoScope(D, II); |
| 6080 | } else { |
| 6081 | // Queue this declaration so that it will be added to the |
| 6082 | // translation unit scope and identifier's declaration chain |
| 6083 | // once a Sema object is known. |
| 6084 | PreloadedDecls.push_back(D); |
| 6085 | } |
| 6086 | } |
| 6087 | } |
| 6088 | |
| 6089 | IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) { |
| 6090 | if (ID == 0) |
| 6091 | return 0; |
| 6092 | |
| 6093 | if (IdentifiersLoaded.empty()) { |
| 6094 | Error("no identifier table in AST file"); |
| 6095 | return 0; |
| 6096 | } |
| 6097 | |
| 6098 | ID -= 1; |
| 6099 | if (!IdentifiersLoaded[ID]) { |
| 6100 | GlobalIdentifierMapType::iterator I = GlobalIdentifierMap.find(ID + 1); |
| 6101 | assert(I != GlobalIdentifierMap.end() && "Corrupted global identifier map"); |
| 6102 | ModuleFile *M = I->second; |
| 6103 | unsigned Index = ID - M->BaseIdentifierID; |
| 6104 | const char *Str = M->IdentifierTableData + M->IdentifierOffsets[Index]; |
| 6105 | |
| 6106 | // All of the strings in the AST file are preceded by a 16-bit length. |
| 6107 | // Extract that 16-bit length to avoid having to execute strlen(). |
| 6108 | // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as |
| 6109 | // unsigned integers. This is important to avoid integer overflow when |
| 6110 | // we cast them to 'unsigned'. |
| 6111 | const unsigned char *StrLenPtr = (const unsigned char*) Str - 2; |
| 6112 | unsigned StrLen = (((unsigned) StrLenPtr[0]) |
| 6113 | | (((unsigned) StrLenPtr[1]) << 8)) - 1; |
| 6114 | IdentifiersLoaded[ID] |
| 6115 | = &PP.getIdentifierTable().get(StringRef(Str, StrLen)); |
| 6116 | if (DeserializationListener) |
| 6117 | DeserializationListener->IdentifierRead(ID + 1, IdentifiersLoaded[ID]); |
| 6118 | } |
| 6119 | |
| 6120 | return IdentifiersLoaded[ID]; |
| 6121 | } |
| 6122 | |
| 6123 | IdentifierInfo *ASTReader::getLocalIdentifier(ModuleFile &M, unsigned LocalID) { |
| 6124 | return DecodeIdentifierInfo(getGlobalIdentifierID(M, LocalID)); |
| 6125 | } |
| 6126 | |
| 6127 | IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) { |
| 6128 | if (LocalID < NUM_PREDEF_IDENT_IDS) |
| 6129 | return LocalID; |
| 6130 | |
| 6131 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6132 | = M.IdentifierRemap.find(LocalID - NUM_PREDEF_IDENT_IDS); |
| 6133 | assert(I != M.IdentifierRemap.end() |
| 6134 | && "Invalid index into identifier index remap"); |
| 6135 | |
| 6136 | return LocalID + I->second; |
| 6137 | } |
| 6138 | |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 6139 | MacroInfo *ASTReader::getMacro(MacroID ID) { |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6140 | if (ID == 0) |
| 6141 | return 0; |
| 6142 | |
| 6143 | if (MacrosLoaded.empty()) { |
| 6144 | Error("no macro table in AST file"); |
| 6145 | return 0; |
| 6146 | } |
| 6147 | |
| 6148 | ID -= NUM_PREDEF_MACRO_IDS; |
| 6149 | if (!MacrosLoaded[ID]) { |
| 6150 | GlobalMacroMapType::iterator I |
| 6151 | = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS); |
| 6152 | assert(I != GlobalMacroMap.end() && "Corrupted global macro map"); |
| 6153 | ModuleFile *M = I->second; |
| 6154 | unsigned Index = ID - M->BaseMacroID; |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 6155 | ReadMacroRecord(*M, M->MacroOffsets[Index]); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6156 | } |
| 6157 | |
| 6158 | return MacrosLoaded[ID]; |
| 6159 | } |
| 6160 | |
| 6161 | MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) { |
| 6162 | if (LocalID < NUM_PREDEF_MACRO_IDS) |
| 6163 | return LocalID; |
| 6164 | |
| 6165 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6166 | = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS); |
| 6167 | assert(I != M.MacroRemap.end() && "Invalid index into macro index remap"); |
| 6168 | |
| 6169 | return LocalID + I->second; |
| 6170 | } |
| 6171 | |
| 6172 | serialization::SubmoduleID |
| 6173 | ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) { |
| 6174 | if (LocalID < NUM_PREDEF_SUBMODULE_IDS) |
| 6175 | return LocalID; |
| 6176 | |
| 6177 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6178 | = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS); |
| 6179 | assert(I != M.SubmoduleRemap.end() |
| 6180 | && "Invalid index into submodule index remap"); |
| 6181 | |
| 6182 | return LocalID + I->second; |
| 6183 | } |
| 6184 | |
| 6185 | Module *ASTReader::getSubmodule(SubmoduleID GlobalID) { |
| 6186 | if (GlobalID < NUM_PREDEF_SUBMODULE_IDS) { |
| 6187 | assert(GlobalID == 0 && "Unhandled global submodule ID"); |
| 6188 | return 0; |
| 6189 | } |
| 6190 | |
| 6191 | if (GlobalID > SubmodulesLoaded.size()) { |
| 6192 | Error("submodule ID out of range in AST file"); |
| 6193 | return 0; |
| 6194 | } |
| 6195 | |
| 6196 | return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS]; |
| 6197 | } |
Douglas Gregor | ca2ab45 | 2013-01-12 01:29:50 +0000 | [diff] [blame] | 6198 | |
| 6199 | Module *ASTReader::getModule(unsigned ID) { |
| 6200 | return getSubmodule(ID); |
| 6201 | } |
| 6202 | |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6203 | Selector ASTReader::getLocalSelector(ModuleFile &M, unsigned LocalID) { |
| 6204 | return DecodeSelector(getGlobalSelectorID(M, LocalID)); |
| 6205 | } |
| 6206 | |
| 6207 | Selector ASTReader::DecodeSelector(serialization::SelectorID ID) { |
| 6208 | if (ID == 0) |
| 6209 | return Selector(); |
| 6210 | |
| 6211 | if (ID > SelectorsLoaded.size()) { |
| 6212 | Error("selector ID out of range in AST file"); |
| 6213 | return Selector(); |
| 6214 | } |
| 6215 | |
| 6216 | if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == 0) { |
| 6217 | // Load this selector from the selector table. |
| 6218 | GlobalSelectorMapType::iterator I = GlobalSelectorMap.find(ID); |
| 6219 | assert(I != GlobalSelectorMap.end() && "Corrupted global selector map"); |
| 6220 | ModuleFile &M = *I->second; |
| 6221 | ASTSelectorLookupTrait Trait(*this, M); |
| 6222 | unsigned Idx = ID - M.BaseSelectorID - NUM_PREDEF_SELECTOR_IDS; |
| 6223 | SelectorsLoaded[ID - 1] = |
| 6224 | Trait.ReadKey(M.SelectorLookupTableData + M.SelectorOffsets[Idx], 0); |
| 6225 | if (DeserializationListener) |
| 6226 | DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]); |
| 6227 | } |
| 6228 | |
| 6229 | return SelectorsLoaded[ID - 1]; |
| 6230 | } |
| 6231 | |
| 6232 | Selector ASTReader::GetExternalSelector(serialization::SelectorID ID) { |
| 6233 | return DecodeSelector(ID); |
| 6234 | } |
| 6235 | |
| 6236 | uint32_t ASTReader::GetNumExternalSelectors() { |
| 6237 | // ID 0 (the null selector) is considered an external selector. |
| 6238 | return getTotalNumSelectors() + 1; |
| 6239 | } |
| 6240 | |
| 6241 | serialization::SelectorID |
| 6242 | ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const { |
| 6243 | if (LocalID < NUM_PREDEF_SELECTOR_IDS) |
| 6244 | return LocalID; |
| 6245 | |
| 6246 | ContinuousRangeMap<uint32_t, int, 2>::iterator I |
| 6247 | = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS); |
| 6248 | assert(I != M.SelectorRemap.end() |
| 6249 | && "Invalid index into selector index remap"); |
| 6250 | |
| 6251 | return LocalID + I->second; |
| 6252 | } |
| 6253 | |
| 6254 | DeclarationName |
| 6255 | ASTReader::ReadDeclarationName(ModuleFile &F, |
| 6256 | const RecordData &Record, unsigned &Idx) { |
| 6257 | DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++]; |
| 6258 | switch (Kind) { |
| 6259 | case DeclarationName::Identifier: |
| 6260 | return DeclarationName(GetIdentifierInfo(F, Record, Idx)); |
| 6261 | |
| 6262 | case DeclarationName::ObjCZeroArgSelector: |
| 6263 | case DeclarationName::ObjCOneArgSelector: |
| 6264 | case DeclarationName::ObjCMultiArgSelector: |
| 6265 | return DeclarationName(ReadSelector(F, Record, Idx)); |
| 6266 | |
| 6267 | case DeclarationName::CXXConstructorName: |
| 6268 | return Context.DeclarationNames.getCXXConstructorName( |
| 6269 | Context.getCanonicalType(readType(F, Record, Idx))); |
| 6270 | |
| 6271 | case DeclarationName::CXXDestructorName: |
| 6272 | return Context.DeclarationNames.getCXXDestructorName( |
| 6273 | Context.getCanonicalType(readType(F, Record, Idx))); |
| 6274 | |
| 6275 | case DeclarationName::CXXConversionFunctionName: |
| 6276 | return Context.DeclarationNames.getCXXConversionFunctionName( |
| 6277 | Context.getCanonicalType(readType(F, Record, Idx))); |
| 6278 | |
| 6279 | case DeclarationName::CXXOperatorName: |
| 6280 | return Context.DeclarationNames.getCXXOperatorName( |
| 6281 | (OverloadedOperatorKind)Record[Idx++]); |
| 6282 | |
| 6283 | case DeclarationName::CXXLiteralOperatorName: |
| 6284 | return Context.DeclarationNames.getCXXLiteralOperatorName( |
| 6285 | GetIdentifierInfo(F, Record, Idx)); |
| 6286 | |
| 6287 | case DeclarationName::CXXUsingDirective: |
| 6288 | return DeclarationName::getUsingDirectiveName(); |
| 6289 | } |
| 6290 | |
| 6291 | llvm_unreachable("Invalid NameKind!"); |
| 6292 | } |
| 6293 | |
| 6294 | void ASTReader::ReadDeclarationNameLoc(ModuleFile &F, |
| 6295 | DeclarationNameLoc &DNLoc, |
| 6296 | DeclarationName Name, |
| 6297 | const RecordData &Record, unsigned &Idx) { |
| 6298 | switch (Name.getNameKind()) { |
| 6299 | case DeclarationName::CXXConstructorName: |
| 6300 | case DeclarationName::CXXDestructorName: |
| 6301 | case DeclarationName::CXXConversionFunctionName: |
| 6302 | DNLoc.NamedType.TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6303 | break; |
| 6304 | |
| 6305 | case DeclarationName::CXXOperatorName: |
| 6306 | DNLoc.CXXOperatorName.BeginOpNameLoc |
| 6307 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); |
| 6308 | DNLoc.CXXOperatorName.EndOpNameLoc |
| 6309 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); |
| 6310 | break; |
| 6311 | |
| 6312 | case DeclarationName::CXXLiteralOperatorName: |
| 6313 | DNLoc.CXXLiteralOperatorName.OpNameLoc |
| 6314 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); |
| 6315 | break; |
| 6316 | |
| 6317 | case DeclarationName::Identifier: |
| 6318 | case DeclarationName::ObjCZeroArgSelector: |
| 6319 | case DeclarationName::ObjCOneArgSelector: |
| 6320 | case DeclarationName::ObjCMultiArgSelector: |
| 6321 | case DeclarationName::CXXUsingDirective: |
| 6322 | break; |
| 6323 | } |
| 6324 | } |
| 6325 | |
| 6326 | void ASTReader::ReadDeclarationNameInfo(ModuleFile &F, |
| 6327 | DeclarationNameInfo &NameInfo, |
| 6328 | const RecordData &Record, unsigned &Idx) { |
| 6329 | NameInfo.setName(ReadDeclarationName(F, Record, Idx)); |
| 6330 | NameInfo.setLoc(ReadSourceLocation(F, Record, Idx)); |
| 6331 | DeclarationNameLoc DNLoc; |
| 6332 | ReadDeclarationNameLoc(F, DNLoc, NameInfo.getName(), Record, Idx); |
| 6333 | NameInfo.setInfo(DNLoc); |
| 6334 | } |
| 6335 | |
| 6336 | void ASTReader::ReadQualifierInfo(ModuleFile &F, QualifierInfo &Info, |
| 6337 | const RecordData &Record, unsigned &Idx) { |
| 6338 | Info.QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx); |
| 6339 | unsigned NumTPLists = Record[Idx++]; |
| 6340 | Info.NumTemplParamLists = NumTPLists; |
| 6341 | if (NumTPLists) { |
| 6342 | Info.TemplParamLists = new (Context) TemplateParameterList*[NumTPLists]; |
| 6343 | for (unsigned i=0; i != NumTPLists; ++i) |
| 6344 | Info.TemplParamLists[i] = ReadTemplateParameterList(F, Record, Idx); |
| 6345 | } |
| 6346 | } |
| 6347 | |
| 6348 | TemplateName |
| 6349 | ASTReader::ReadTemplateName(ModuleFile &F, const RecordData &Record, |
| 6350 | unsigned &Idx) { |
| 6351 | TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++]; |
| 6352 | switch (Kind) { |
| 6353 | case TemplateName::Template: |
| 6354 | return TemplateName(ReadDeclAs<TemplateDecl>(F, Record, Idx)); |
| 6355 | |
| 6356 | case TemplateName::OverloadedTemplate: { |
| 6357 | unsigned size = Record[Idx++]; |
| 6358 | UnresolvedSet<8> Decls; |
| 6359 | while (size--) |
| 6360 | Decls.addDecl(ReadDeclAs<NamedDecl>(F, Record, Idx)); |
| 6361 | |
| 6362 | return Context.getOverloadedTemplateName(Decls.begin(), Decls.end()); |
| 6363 | } |
| 6364 | |
| 6365 | case TemplateName::QualifiedTemplate: { |
| 6366 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx); |
| 6367 | bool hasTemplKeyword = Record[Idx++]; |
| 6368 | TemplateDecl *Template = ReadDeclAs<TemplateDecl>(F, Record, Idx); |
| 6369 | return Context.getQualifiedTemplateName(NNS, hasTemplKeyword, Template); |
| 6370 | } |
| 6371 | |
| 6372 | case TemplateName::DependentTemplate: { |
| 6373 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx); |
| 6374 | if (Record[Idx++]) // isIdentifier |
| 6375 | return Context.getDependentTemplateName(NNS, |
| 6376 | GetIdentifierInfo(F, Record, |
| 6377 | Idx)); |
| 6378 | return Context.getDependentTemplateName(NNS, |
| 6379 | (OverloadedOperatorKind)Record[Idx++]); |
| 6380 | } |
| 6381 | |
| 6382 | case TemplateName::SubstTemplateTemplateParm: { |
| 6383 | TemplateTemplateParmDecl *param |
| 6384 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx); |
| 6385 | if (!param) return TemplateName(); |
| 6386 | TemplateName replacement = ReadTemplateName(F, Record, Idx); |
| 6387 | return Context.getSubstTemplateTemplateParm(param, replacement); |
| 6388 | } |
| 6389 | |
| 6390 | case TemplateName::SubstTemplateTemplateParmPack: { |
| 6391 | TemplateTemplateParmDecl *Param |
| 6392 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx); |
| 6393 | if (!Param) |
| 6394 | return TemplateName(); |
| 6395 | |
| 6396 | TemplateArgument ArgPack = ReadTemplateArgument(F, Record, Idx); |
| 6397 | if (ArgPack.getKind() != TemplateArgument::Pack) |
| 6398 | return TemplateName(); |
| 6399 | |
| 6400 | return Context.getSubstTemplateTemplateParmPack(Param, ArgPack); |
| 6401 | } |
| 6402 | } |
| 6403 | |
| 6404 | llvm_unreachable("Unhandled template name kind!"); |
| 6405 | } |
| 6406 | |
| 6407 | TemplateArgument |
| 6408 | ASTReader::ReadTemplateArgument(ModuleFile &F, |
| 6409 | const RecordData &Record, unsigned &Idx) { |
| 6410 | TemplateArgument::ArgKind Kind = (TemplateArgument::ArgKind)Record[Idx++]; |
| 6411 | switch (Kind) { |
| 6412 | case TemplateArgument::Null: |
| 6413 | return TemplateArgument(); |
| 6414 | case TemplateArgument::Type: |
| 6415 | return TemplateArgument(readType(F, Record, Idx)); |
| 6416 | case TemplateArgument::Declaration: { |
| 6417 | ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx); |
| 6418 | bool ForReferenceParam = Record[Idx++]; |
| 6419 | return TemplateArgument(D, ForReferenceParam); |
| 6420 | } |
| 6421 | case TemplateArgument::NullPtr: |
| 6422 | return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true); |
| 6423 | case TemplateArgument::Integral: { |
| 6424 | llvm::APSInt Value = ReadAPSInt(Record, Idx); |
| 6425 | QualType T = readType(F, Record, Idx); |
| 6426 | return TemplateArgument(Context, Value, T); |
| 6427 | } |
| 6428 | case TemplateArgument::Template: |
| 6429 | return TemplateArgument(ReadTemplateName(F, Record, Idx)); |
| 6430 | case TemplateArgument::TemplateExpansion: { |
| 6431 | TemplateName Name = ReadTemplateName(F, Record, Idx); |
| 6432 | llvm::Optional<unsigned> NumTemplateExpansions; |
| 6433 | if (unsigned NumExpansions = Record[Idx++]) |
| 6434 | NumTemplateExpansions = NumExpansions - 1; |
| 6435 | return TemplateArgument(Name, NumTemplateExpansions); |
| 6436 | } |
| 6437 | case TemplateArgument::Expression: |
| 6438 | return TemplateArgument(ReadExpr(F)); |
| 6439 | case TemplateArgument::Pack: { |
| 6440 | unsigned NumArgs = Record[Idx++]; |
| 6441 | TemplateArgument *Args = new (Context) TemplateArgument[NumArgs]; |
| 6442 | for (unsigned I = 0; I != NumArgs; ++I) |
| 6443 | Args[I] = ReadTemplateArgument(F, Record, Idx); |
| 6444 | return TemplateArgument(Args, NumArgs); |
| 6445 | } |
| 6446 | } |
| 6447 | |
| 6448 | llvm_unreachable("Unhandled template argument kind!"); |
| 6449 | } |
| 6450 | |
| 6451 | TemplateParameterList * |
| 6452 | ASTReader::ReadTemplateParameterList(ModuleFile &F, |
| 6453 | const RecordData &Record, unsigned &Idx) { |
| 6454 | SourceLocation TemplateLoc = ReadSourceLocation(F, Record, Idx); |
| 6455 | SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Idx); |
| 6456 | SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Idx); |
| 6457 | |
| 6458 | unsigned NumParams = Record[Idx++]; |
| 6459 | SmallVector<NamedDecl *, 16> Params; |
| 6460 | Params.reserve(NumParams); |
| 6461 | while (NumParams--) |
| 6462 | Params.push_back(ReadDeclAs<NamedDecl>(F, Record, Idx)); |
| 6463 | |
| 6464 | TemplateParameterList* TemplateParams = |
| 6465 | TemplateParameterList::Create(Context, TemplateLoc, LAngleLoc, |
| 6466 | Params.data(), Params.size(), RAngleLoc); |
| 6467 | return TemplateParams; |
| 6468 | } |
| 6469 | |
| 6470 | void |
| 6471 | ASTReader:: |
| 6472 | ReadTemplateArgumentList(SmallVector<TemplateArgument, 8> &TemplArgs, |
| 6473 | ModuleFile &F, const RecordData &Record, |
| 6474 | unsigned &Idx) { |
| 6475 | unsigned NumTemplateArgs = Record[Idx++]; |
| 6476 | TemplArgs.reserve(NumTemplateArgs); |
| 6477 | while (NumTemplateArgs--) |
| 6478 | TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx)); |
| 6479 | } |
| 6480 | |
| 6481 | /// \brief Read a UnresolvedSet structure. |
| 6482 | void ASTReader::ReadUnresolvedSet(ModuleFile &F, ASTUnresolvedSet &Set, |
| 6483 | const RecordData &Record, unsigned &Idx) { |
| 6484 | unsigned NumDecls = Record[Idx++]; |
| 6485 | Set.reserve(Context, NumDecls); |
| 6486 | while (NumDecls--) { |
| 6487 | NamedDecl *D = ReadDeclAs<NamedDecl>(F, Record, Idx); |
| 6488 | AccessSpecifier AS = (AccessSpecifier)Record[Idx++]; |
| 6489 | Set.addDecl(Context, D, AS); |
| 6490 | } |
| 6491 | } |
| 6492 | |
| 6493 | CXXBaseSpecifier |
| 6494 | ASTReader::ReadCXXBaseSpecifier(ModuleFile &F, |
| 6495 | const RecordData &Record, unsigned &Idx) { |
| 6496 | bool isVirtual = static_cast<bool>(Record[Idx++]); |
| 6497 | bool isBaseOfClass = static_cast<bool>(Record[Idx++]); |
| 6498 | AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]); |
| 6499 | bool inheritConstructors = static_cast<bool>(Record[Idx++]); |
| 6500 | TypeSourceInfo *TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6501 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6502 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Idx); |
| 6503 | CXXBaseSpecifier Result(Range, isVirtual, isBaseOfClass, AS, TInfo, |
| 6504 | EllipsisLoc); |
| 6505 | Result.setInheritConstructors(inheritConstructors); |
| 6506 | return Result; |
| 6507 | } |
| 6508 | |
| 6509 | std::pair<CXXCtorInitializer **, unsigned> |
| 6510 | ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record, |
| 6511 | unsigned &Idx) { |
| 6512 | CXXCtorInitializer **CtorInitializers = 0; |
| 6513 | unsigned NumInitializers = Record[Idx++]; |
| 6514 | if (NumInitializers) { |
| 6515 | CtorInitializers |
| 6516 | = new (Context) CXXCtorInitializer*[NumInitializers]; |
| 6517 | for (unsigned i=0; i != NumInitializers; ++i) { |
| 6518 | TypeSourceInfo *TInfo = 0; |
| 6519 | bool IsBaseVirtual = false; |
| 6520 | FieldDecl *Member = 0; |
| 6521 | IndirectFieldDecl *IndirectMember = 0; |
| 6522 | |
| 6523 | CtorInitializerType Type = (CtorInitializerType)Record[Idx++]; |
| 6524 | switch (Type) { |
| 6525 | case CTOR_INITIALIZER_BASE: |
| 6526 | TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6527 | IsBaseVirtual = Record[Idx++]; |
| 6528 | break; |
| 6529 | |
| 6530 | case CTOR_INITIALIZER_DELEGATING: |
| 6531 | TInfo = GetTypeSourceInfo(F, Record, Idx); |
| 6532 | break; |
| 6533 | |
| 6534 | case CTOR_INITIALIZER_MEMBER: |
| 6535 | Member = ReadDeclAs<FieldDecl>(F, Record, Idx); |
| 6536 | break; |
| 6537 | |
| 6538 | case CTOR_INITIALIZER_INDIRECT_MEMBER: |
| 6539 | IndirectMember = ReadDeclAs<IndirectFieldDecl>(F, Record, Idx); |
| 6540 | break; |
| 6541 | } |
| 6542 | |
| 6543 | SourceLocation MemberOrEllipsisLoc = ReadSourceLocation(F, Record, Idx); |
| 6544 | Expr *Init = ReadExpr(F); |
| 6545 | SourceLocation LParenLoc = ReadSourceLocation(F, Record, Idx); |
| 6546 | SourceLocation RParenLoc = ReadSourceLocation(F, Record, Idx); |
| 6547 | bool IsWritten = Record[Idx++]; |
| 6548 | unsigned SourceOrderOrNumArrayIndices; |
| 6549 | SmallVector<VarDecl *, 8> Indices; |
| 6550 | if (IsWritten) { |
| 6551 | SourceOrderOrNumArrayIndices = Record[Idx++]; |
| 6552 | } else { |
| 6553 | SourceOrderOrNumArrayIndices = Record[Idx++]; |
| 6554 | Indices.reserve(SourceOrderOrNumArrayIndices); |
| 6555 | for (unsigned i=0; i != SourceOrderOrNumArrayIndices; ++i) |
| 6556 | Indices.push_back(ReadDeclAs<VarDecl>(F, Record, Idx)); |
| 6557 | } |
| 6558 | |
| 6559 | CXXCtorInitializer *BOMInit; |
| 6560 | if (Type == CTOR_INITIALIZER_BASE) { |
| 6561 | BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, IsBaseVirtual, |
| 6562 | LParenLoc, Init, RParenLoc, |
| 6563 | MemberOrEllipsisLoc); |
| 6564 | } else if (Type == CTOR_INITIALIZER_DELEGATING) { |
| 6565 | BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, LParenLoc, |
| 6566 | Init, RParenLoc); |
| 6567 | } else if (IsWritten) { |
| 6568 | if (Member) |
| 6569 | BOMInit = new (Context) CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc, |
| 6570 | LParenLoc, Init, RParenLoc); |
| 6571 | else |
| 6572 | BOMInit = new (Context) CXXCtorInitializer(Context, IndirectMember, |
| 6573 | MemberOrEllipsisLoc, LParenLoc, |
| 6574 | Init, RParenLoc); |
| 6575 | } else { |
| 6576 | BOMInit = CXXCtorInitializer::Create(Context, Member, MemberOrEllipsisLoc, |
| 6577 | LParenLoc, Init, RParenLoc, |
| 6578 | Indices.data(), Indices.size()); |
| 6579 | } |
| 6580 | |
| 6581 | if (IsWritten) |
| 6582 | BOMInit->setSourceOrder(SourceOrderOrNumArrayIndices); |
| 6583 | CtorInitializers[i] = BOMInit; |
| 6584 | } |
| 6585 | } |
| 6586 | |
| 6587 | return std::make_pair(CtorInitializers, NumInitializers); |
| 6588 | } |
| 6589 | |
| 6590 | NestedNameSpecifier * |
| 6591 | ASTReader::ReadNestedNameSpecifier(ModuleFile &F, |
| 6592 | const RecordData &Record, unsigned &Idx) { |
| 6593 | unsigned N = Record[Idx++]; |
| 6594 | NestedNameSpecifier *NNS = 0, *Prev = 0; |
| 6595 | for (unsigned I = 0; I != N; ++I) { |
| 6596 | NestedNameSpecifier::SpecifierKind Kind |
| 6597 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++]; |
| 6598 | switch (Kind) { |
| 6599 | case NestedNameSpecifier::Identifier: { |
| 6600 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx); |
| 6601 | NNS = NestedNameSpecifier::Create(Context, Prev, II); |
| 6602 | break; |
| 6603 | } |
| 6604 | |
| 6605 | case NestedNameSpecifier::Namespace: { |
| 6606 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx); |
| 6607 | NNS = NestedNameSpecifier::Create(Context, Prev, NS); |
| 6608 | break; |
| 6609 | } |
| 6610 | |
| 6611 | case NestedNameSpecifier::NamespaceAlias: { |
| 6612 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx); |
| 6613 | NNS = NestedNameSpecifier::Create(Context, Prev, Alias); |
| 6614 | break; |
| 6615 | } |
| 6616 | |
| 6617 | case NestedNameSpecifier::TypeSpec: |
| 6618 | case NestedNameSpecifier::TypeSpecWithTemplate: { |
| 6619 | const Type *T = readType(F, Record, Idx).getTypePtrOrNull(); |
| 6620 | if (!T) |
| 6621 | return 0; |
| 6622 | |
| 6623 | bool Template = Record[Idx++]; |
| 6624 | NNS = NestedNameSpecifier::Create(Context, Prev, Template, T); |
| 6625 | break; |
| 6626 | } |
| 6627 | |
| 6628 | case NestedNameSpecifier::Global: { |
| 6629 | NNS = NestedNameSpecifier::GlobalSpecifier(Context); |
| 6630 | // No associated value, and there can't be a prefix. |
| 6631 | break; |
| 6632 | } |
| 6633 | } |
| 6634 | Prev = NNS; |
| 6635 | } |
| 6636 | return NNS; |
| 6637 | } |
| 6638 | |
| 6639 | NestedNameSpecifierLoc |
| 6640 | ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record, |
| 6641 | unsigned &Idx) { |
| 6642 | unsigned N = Record[Idx++]; |
| 6643 | NestedNameSpecifierLocBuilder Builder; |
| 6644 | for (unsigned I = 0; I != N; ++I) { |
| 6645 | NestedNameSpecifier::SpecifierKind Kind |
| 6646 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++]; |
| 6647 | switch (Kind) { |
| 6648 | case NestedNameSpecifier::Identifier: { |
| 6649 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx); |
| 6650 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6651 | Builder.Extend(Context, II, Range.getBegin(), Range.getEnd()); |
| 6652 | break; |
| 6653 | } |
| 6654 | |
| 6655 | case NestedNameSpecifier::Namespace: { |
| 6656 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx); |
| 6657 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6658 | Builder.Extend(Context, NS, Range.getBegin(), Range.getEnd()); |
| 6659 | break; |
| 6660 | } |
| 6661 | |
| 6662 | case NestedNameSpecifier::NamespaceAlias: { |
| 6663 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx); |
| 6664 | SourceRange Range = ReadSourceRange(F, Record, Idx); |
| 6665 | Builder.Extend(Context, Alias, Range.getBegin(), Range.getEnd()); |
| 6666 | break; |
| 6667 | } |
| 6668 | |
| 6669 | case NestedNameSpecifier::TypeSpec: |
| 6670 | case NestedNameSpecifier::TypeSpecWithTemplate: { |
| 6671 | bool Template = Record[Idx++]; |
| 6672 | TypeSourceInfo *T = GetTypeSourceInfo(F, Record, Idx); |
| 6673 | if (!T) |
| 6674 | return NestedNameSpecifierLoc(); |
| 6675 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx); |
| 6676 | |
| 6677 | // FIXME: 'template' keyword location not saved anywhere, so we fake it. |
| 6678 | Builder.Extend(Context, |
| 6679 | Template? T->getTypeLoc().getBeginLoc() : SourceLocation(), |
| 6680 | T->getTypeLoc(), ColonColonLoc); |
| 6681 | break; |
| 6682 | } |
| 6683 | |
| 6684 | case NestedNameSpecifier::Global: { |
| 6685 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx); |
| 6686 | Builder.MakeGlobal(Context, ColonColonLoc); |
| 6687 | break; |
| 6688 | } |
| 6689 | } |
| 6690 | } |
| 6691 | |
| 6692 | return Builder.getWithLocInContext(Context); |
| 6693 | } |
| 6694 | |
| 6695 | SourceRange |
| 6696 | ASTReader::ReadSourceRange(ModuleFile &F, const RecordData &Record, |
| 6697 | unsigned &Idx) { |
| 6698 | SourceLocation beg = ReadSourceLocation(F, Record, Idx); |
| 6699 | SourceLocation end = ReadSourceLocation(F, Record, Idx); |
| 6700 | return SourceRange(beg, end); |
| 6701 | } |
| 6702 | |
| 6703 | /// \brief Read an integral value |
| 6704 | llvm::APInt ASTReader::ReadAPInt(const RecordData &Record, unsigned &Idx) { |
| 6705 | unsigned BitWidth = Record[Idx++]; |
| 6706 | unsigned NumWords = llvm::APInt::getNumWords(BitWidth); |
| 6707 | llvm::APInt Result(BitWidth, NumWords, &Record[Idx]); |
| 6708 | Idx += NumWords; |
| 6709 | return Result; |
| 6710 | } |
| 6711 | |
| 6712 | /// \brief Read a signed integral value |
| 6713 | llvm::APSInt ASTReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) { |
| 6714 | bool isUnsigned = Record[Idx++]; |
| 6715 | return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned); |
| 6716 | } |
| 6717 | |
| 6718 | /// \brief Read a floating-point value |
| 6719 | llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, unsigned &Idx) { |
| 6720 | return llvm::APFloat(ReadAPInt(Record, Idx)); |
| 6721 | } |
| 6722 | |
| 6723 | // \brief Read a string |
| 6724 | std::string ASTReader::ReadString(const RecordData &Record, unsigned &Idx) { |
| 6725 | unsigned Len = Record[Idx++]; |
| 6726 | std::string Result(Record.data() + Idx, Record.data() + Idx + Len); |
| 6727 | Idx += Len; |
| 6728 | return Result; |
| 6729 | } |
| 6730 | |
| 6731 | VersionTuple ASTReader::ReadVersionTuple(const RecordData &Record, |
| 6732 | unsigned &Idx) { |
| 6733 | unsigned Major = Record[Idx++]; |
| 6734 | unsigned Minor = Record[Idx++]; |
| 6735 | unsigned Subminor = Record[Idx++]; |
| 6736 | if (Minor == 0) |
| 6737 | return VersionTuple(Major); |
| 6738 | if (Subminor == 0) |
| 6739 | return VersionTuple(Major, Minor - 1); |
| 6740 | return VersionTuple(Major, Minor - 1, Subminor - 1); |
| 6741 | } |
| 6742 | |
| 6743 | CXXTemporary *ASTReader::ReadCXXTemporary(ModuleFile &F, |
| 6744 | const RecordData &Record, |
| 6745 | unsigned &Idx) { |
| 6746 | CXXDestructorDecl *Decl = ReadDeclAs<CXXDestructorDecl>(F, Record, Idx); |
| 6747 | return CXXTemporary::Create(Context, Decl); |
| 6748 | } |
| 6749 | |
| 6750 | DiagnosticBuilder ASTReader::Diag(unsigned DiagID) { |
| 6751 | return Diag(SourceLocation(), DiagID); |
| 6752 | } |
| 6753 | |
| 6754 | DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) { |
| 6755 | return Diags.Report(Loc, DiagID); |
| 6756 | } |
| 6757 | |
| 6758 | /// \brief Retrieve the identifier table associated with the |
| 6759 | /// preprocessor. |
| 6760 | IdentifierTable &ASTReader::getIdentifierTable() { |
| 6761 | return PP.getIdentifierTable(); |
| 6762 | } |
| 6763 | |
| 6764 | /// \brief Record that the given ID maps to the given switch-case |
| 6765 | /// statement. |
| 6766 | void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) { |
| 6767 | assert((*CurrSwitchCaseStmts)[ID] == 0 && |
| 6768 | "Already have a SwitchCase with this ID"); |
| 6769 | (*CurrSwitchCaseStmts)[ID] = SC; |
| 6770 | } |
| 6771 | |
| 6772 | /// \brief Retrieve the switch-case statement with the given ID. |
| 6773 | SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) { |
| 6774 | assert((*CurrSwitchCaseStmts)[ID] != 0 && "No SwitchCase with this ID"); |
| 6775 | return (*CurrSwitchCaseStmts)[ID]; |
| 6776 | } |
| 6777 | |
| 6778 | void ASTReader::ClearSwitchCaseIDs() { |
| 6779 | CurrSwitchCaseStmts->clear(); |
| 6780 | } |
| 6781 | |
| 6782 | void ASTReader::ReadComments() { |
| 6783 | std::vector<RawComment *> Comments; |
| 6784 | for (SmallVectorImpl<std::pair<llvm::BitstreamCursor, |
| 6785 | serialization::ModuleFile *> >::iterator |
| 6786 | I = CommentsCursors.begin(), |
| 6787 | E = CommentsCursors.end(); |
| 6788 | I != E; ++I) { |
| 6789 | llvm::BitstreamCursor &Cursor = I->first; |
| 6790 | serialization::ModuleFile &F = *I->second; |
| 6791 | SavedStreamPosition SavedPosition(Cursor); |
| 6792 | |
| 6793 | RecordData Record; |
| 6794 | while (true) { |
| 6795 | unsigned Code = Cursor.ReadCode(); |
| 6796 | if (Code == llvm::bitc::END_BLOCK) |
| 6797 | break; |
| 6798 | |
| 6799 | if (Code == llvm::bitc::ENTER_SUBBLOCK) { |
| 6800 | // No known subblocks, always skip them. |
| 6801 | Cursor.ReadSubBlockID(); |
| 6802 | if (Cursor.SkipBlock()) { |
| 6803 | Error("malformed block record in AST file"); |
| 6804 | return; |
| 6805 | } |
| 6806 | continue; |
| 6807 | } |
| 6808 | |
| 6809 | if (Code == llvm::bitc::DEFINE_ABBREV) { |
| 6810 | Cursor.ReadAbbrevRecord(); |
| 6811 | continue; |
| 6812 | } |
| 6813 | |
| 6814 | // Read a record. |
| 6815 | Record.clear(); |
| 6816 | switch ((CommentRecordTypes) Cursor.ReadRecord(Code, Record)) { |
| 6817 | case COMMENTS_RAW_COMMENT: { |
| 6818 | unsigned Idx = 0; |
| 6819 | SourceRange SR = ReadSourceRange(F, Record, Idx); |
| 6820 | RawComment::CommentKind Kind = |
| 6821 | (RawComment::CommentKind) Record[Idx++]; |
| 6822 | bool IsTrailingComment = Record[Idx++]; |
| 6823 | bool IsAlmostTrailingComment = Record[Idx++]; |
| 6824 | Comments.push_back(new (Context) RawComment(SR, Kind, |
| 6825 | IsTrailingComment, |
| 6826 | IsAlmostTrailingComment)); |
| 6827 | break; |
| 6828 | } |
| 6829 | } |
| 6830 | } |
| 6831 | } |
| 6832 | Context.Comments.addCommentsToFront(Comments); |
| 6833 | } |
| 6834 | |
| 6835 | void ASTReader::finishPendingActions() { |
| 6836 | while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty() || |
| 6837 | !PendingMacroIDs.empty()) { |
| 6838 | // If any identifiers with corresponding top-level declarations have |
| 6839 | // been loaded, load those declarations now. |
| 6840 | while (!PendingIdentifierInfos.empty()) { |
| 6841 | SetGloballyVisibleDecls(PendingIdentifierInfos.front().II, |
| 6842 | PendingIdentifierInfos.front().DeclIDs, true); |
| 6843 | PendingIdentifierInfos.pop_front(); |
| 6844 | } |
| 6845 | |
| 6846 | // Load pending declaration chains. |
| 6847 | for (unsigned I = 0; I != PendingDeclChains.size(); ++I) { |
| 6848 | loadPendingDeclChain(PendingDeclChains[I]); |
| 6849 | PendingDeclChainsKnown.erase(PendingDeclChains[I]); |
| 6850 | } |
| 6851 | PendingDeclChains.clear(); |
| 6852 | |
| 6853 | // Load any pending macro definitions. |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 6854 | // Note that new macros may be added while deserializing a macro. |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6855 | for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) { |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 6856 | PendingMacroIDsMap::iterator PMIt = PendingMacroIDs.begin() + I; |
Argyrios Kyrtzidis | f7f1264 | 2013-01-16 17:42:07 +0000 | [diff] [blame] | 6857 | IdentifierInfo *II = PMIt->first; |
| 6858 | SmallVector<serialization::MacroID, 2> MacroIDs; |
| 6859 | MacroIDs.swap(PMIt->second); |
Argyrios Kyrtzidis | 7f69b1a | 2013-01-16 16:19:38 +0000 | [diff] [blame] | 6860 | for (SmallVectorImpl<serialization::MacroID>::iterator |
| 6861 | MIt = MacroIDs.begin(), ME = MacroIDs.end(); MIt != ME; ++MIt) { |
| 6862 | MacroInfo *MI = getMacro(*MIt); |
Argyrios Kyrtzidis | f7f1264 | 2013-01-16 17:42:07 +0000 | [diff] [blame] | 6863 | PP.addLoadedMacroInfo(II, MI); |
Guy Benyei | 7f92f2d | 2012-12-18 14:30:41 +0000 | [diff] [blame] | 6864 | } |
| 6865 | } |
| 6866 | PendingMacroIDs.clear(); |
| 6867 | } |
| 6868 | |
| 6869 | // If we deserialized any C++ or Objective-C class definitions, any |
| 6870 | // Objective-C protocol definitions, or any redeclarable templates, make sure |
| 6871 | // that all redeclarations point to the definitions. Note that this can only |
| 6872 | // happen now, after the redeclaration chains have been fully wired. |
| 6873 | for (llvm::SmallPtrSet<Decl *, 4>::iterator D = PendingDefinitions.begin(), |
| 6874 | DEnd = PendingDefinitions.end(); |
| 6875 | D != DEnd; ++D) { |
| 6876 | if (TagDecl *TD = dyn_cast<TagDecl>(*D)) { |
| 6877 | if (const TagType *TagT = dyn_cast<TagType>(TD->TypeForDecl)) { |
| 6878 | // Make sure that the TagType points at the definition. |
| 6879 | const_cast<TagType*>(TagT)->decl = TD; |
| 6880 | } |
| 6881 | |
| 6882 | if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(*D)) { |
| 6883 | for (CXXRecordDecl::redecl_iterator R = RD->redecls_begin(), |
| 6884 | REnd = RD->redecls_end(); |
| 6885 | R != REnd; ++R) |
| 6886 | cast<CXXRecordDecl>(*R)->DefinitionData = RD->DefinitionData; |
| 6887 | |
| 6888 | } |
| 6889 | |
| 6890 | continue; |
| 6891 | } |
| 6892 | |
| 6893 | if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(*D)) { |
| 6894 | // Make sure that the ObjCInterfaceType points at the definition. |
| 6895 | const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl)) |
| 6896 | ->Decl = ID; |
| 6897 | |
| 6898 | for (ObjCInterfaceDecl::redecl_iterator R = ID->redecls_begin(), |
| 6899 | REnd = ID->redecls_end(); |
| 6900 | R != REnd; ++R) |
| 6901 | R->Data = ID->Data; |
| 6902 | |
| 6903 | continue; |
| 6904 | } |
| 6905 | |
| 6906 | if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(*D)) { |
| 6907 | for (ObjCProtocolDecl::redecl_iterator R = PD->redecls_begin(), |
| 6908 | REnd = PD->redecls_end(); |
| 6909 | R != REnd; ++R) |
| 6910 | R->Data = PD->Data; |
| 6911 | |
| 6912 | continue; |
| 6913 | } |
| 6914 | |
| 6915 | RedeclarableTemplateDecl *RTD |
| 6916 | = cast<RedeclarableTemplateDecl>(*D)->getCanonicalDecl(); |
| 6917 | for (RedeclarableTemplateDecl::redecl_iterator R = RTD->redecls_begin(), |
| 6918 | REnd = RTD->redecls_end(); |
| 6919 | R != REnd; ++R) |
| 6920 | R->Common = RTD->Common; |
| 6921 | } |
| 6922 | PendingDefinitions.clear(); |
| 6923 | |
| 6924 | // Load the bodies of any functions or methods we've encountered. We do |
| 6925 | // this now (delayed) so that we can be sure that the declaration chains |
| 6926 | // have been fully wired up. |
| 6927 | for (PendingBodiesMap::iterator PB = PendingBodies.begin(), |
| 6928 | PBEnd = PendingBodies.end(); |
| 6929 | PB != PBEnd; ++PB) { |
| 6930 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) { |
| 6931 | // FIXME: Check for =delete/=default? |
| 6932 | // FIXME: Complain about ODR violations here? |
| 6933 | if (!getContext().getLangOpts().Modules || !FD->hasBody()) |
| 6934 | FD->setLazyBody(PB->second); |
| 6935 | continue; |
| 6936 | } |
| 6937 | |
| 6938 | ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first); |
| 6939 | if (!getContext().getLangOpts().Modules || !MD->hasBody()) |
| 6940 | MD->setLazyBody(PB->second); |
| 6941 | } |
| 6942 | PendingBodies.clear(); |
| 6943 | } |
| 6944 | |
| 6945 | void ASTReader::FinishedDeserializing() { |
| 6946 | assert(NumCurrentElementsDeserializing && |
| 6947 | "FinishedDeserializing not paired with StartedDeserializing"); |
| 6948 | if (NumCurrentElementsDeserializing == 1) { |
| 6949 | // We decrease NumCurrentElementsDeserializing only after pending actions |
| 6950 | // are finished, to avoid recursively re-calling finishPendingActions(). |
| 6951 | finishPendingActions(); |
| 6952 | } |
| 6953 | --NumCurrentElementsDeserializing; |
| 6954 | |
| 6955 | if (NumCurrentElementsDeserializing == 0 && |
| 6956 | Consumer && !PassingDeclsToConsumer) { |
| 6957 | // Guard variable to avoid recursively redoing the process of passing |
| 6958 | // decls to consumer. |
| 6959 | SaveAndRestore<bool> GuardPassingDeclsToConsumer(PassingDeclsToConsumer, |
| 6960 | true); |
| 6961 | |
| 6962 | while (!InterestingDecls.empty()) { |
| 6963 | // We are not in recursive loading, so it's safe to pass the "interesting" |
| 6964 | // decls to the consumer. |
| 6965 | Decl *D = InterestingDecls.front(); |
| 6966 | InterestingDecls.pop_front(); |
| 6967 | PassInterestingDeclToConsumer(D); |
| 6968 | } |
| 6969 | } |
| 6970 | } |
| 6971 | |
| 6972 | ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context, |
| 6973 | StringRef isysroot, bool DisableValidation, |
| 6974 | bool AllowASTWithCompilerErrors) |
| 6975 | : Listener(new PCHValidator(PP, *this)), DeserializationListener(0), |
| 6976 | SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()), |
| 6977 | Diags(PP.getDiagnostics()), SemaObj(0), PP(PP), Context(Context), |
| 6978 | Consumer(0), ModuleMgr(PP.getFileManager()), |
| 6979 | isysroot(isysroot), DisableValidation(DisableValidation), |
| 6980 | AllowASTWithCompilerErrors(AllowASTWithCompilerErrors), |
| 6981 | CurrentGeneration(0), CurrSwitchCaseStmts(&SwitchCaseStmts), |
| 6982 | NumSLocEntriesRead(0), TotalNumSLocEntries(0), |
| 6983 | NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0), |
| 6984 | TotalNumMacros(0), NumSelectorsRead(0), NumMethodPoolEntriesRead(0), |
| 6985 | NumMethodPoolMisses(0), TotalNumMethodPoolEntries(0), |
| 6986 | NumLexicalDeclContextsRead(0), TotalLexicalDeclContexts(0), |
| 6987 | NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0), |
| 6988 | TotalModulesSizeInBits(0), NumCurrentElementsDeserializing(0), |
| 6989 | PassingDeclsToConsumer(false), |
| 6990 | NumCXXBaseSpecifiersLoaded(0) |
| 6991 | { |
| 6992 | SourceMgr.setExternalSLocEntrySource(this); |
| 6993 | } |
| 6994 | |
| 6995 | ASTReader::~ASTReader() { |
| 6996 | for (DeclContextVisibleUpdatesPending::iterator |
| 6997 | I = PendingVisibleUpdates.begin(), |
| 6998 | E = PendingVisibleUpdates.end(); |
| 6999 | I != E; ++I) { |
| 7000 | for (DeclContextVisibleUpdates::iterator J = I->second.begin(), |
| 7001 | F = I->second.end(); |
| 7002 | J != F; ++J) |
| 7003 | delete J->first; |
| 7004 | } |
| 7005 | } |