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- //===- ASTReader.cpp - AST File Reader ------------------------------------===//
- //
- // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
- // See https://llvm.org/LICENSE.txt for license information.
- // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
- //
- //===----------------------------------------------------------------------===//
- //
- // This file defines the ASTReader class, which reads AST files.
- //
- //===----------------------------------------------------------------------===//
- #include "clang/Serialization/ASTReader.h"
- #include "ASTCommon.h"
- #include "ASTReaderInternals.h"
- #include "clang/AST/ASTConsumer.h"
- #include "clang/AST/ASTContext.h"
- #include "clang/AST/ASTMutationListener.h"
- #include "clang/AST/ASTUnresolvedSet.h"
- #include "clang/AST/Decl.h"
- #include "clang/AST/DeclBase.h"
- #include "clang/AST/DeclCXX.h"
- #include "clang/AST/DeclFriend.h"
- #include "clang/AST/DeclGroup.h"
- #include "clang/AST/DeclObjC.h"
- #include "clang/AST/DeclTemplate.h"
- #include "clang/AST/DeclarationName.h"
- #include "clang/AST/Expr.h"
- #include "clang/AST/ExprCXX.h"
- #include "clang/AST/ExternalASTSource.h"
- #include "clang/AST/NestedNameSpecifier.h"
- #include "clang/AST/ODRHash.h"
- #include "clang/AST/RawCommentList.h"
- #include "clang/AST/TemplateBase.h"
- #include "clang/AST/TemplateName.h"
- #include "clang/AST/Type.h"
- #include "clang/AST/TypeLoc.h"
- #include "clang/AST/TypeLocVisitor.h"
- #include "clang/AST/UnresolvedSet.h"
- #include "clang/Basic/CommentOptions.h"
- #include "clang/Basic/Diagnostic.h"
- #include "clang/Basic/DiagnosticOptions.h"
- #include "clang/Basic/ExceptionSpecificationType.h"
- #include "clang/Basic/FileManager.h"
- #include "clang/Basic/FileSystemOptions.h"
- #include "clang/Basic/IdentifierTable.h"
- #include "clang/Basic/LLVM.h"
- #include "clang/Basic/LangOptions.h"
- #include "clang/Basic/Module.h"
- #include "clang/Basic/ObjCRuntime.h"
- #include "clang/Basic/OperatorKinds.h"
- #include "clang/Basic/PragmaKinds.h"
- #include "clang/Basic/Sanitizers.h"
- #include "clang/Basic/SourceLocation.h"
- #include "clang/Basic/SourceManager.h"
- #include "clang/Basic/SourceManagerInternals.h"
- #include "clang/Basic/Specifiers.h"
- #include "clang/Basic/TargetInfo.h"
- #include "clang/Basic/TargetOptions.h"
- #include "clang/Basic/TokenKinds.h"
- #include "clang/Basic/Version.h"
- #include "clang/Lex/HeaderSearch.h"
- #include "clang/Lex/HeaderSearchOptions.h"
- #include "clang/Lex/MacroInfo.h"
- #include "clang/Lex/ModuleMap.h"
- #include "clang/Lex/PreprocessingRecord.h"
- #include "clang/Lex/Preprocessor.h"
- #include "clang/Lex/PreprocessorOptions.h"
- #include "clang/Lex/Token.h"
- #include "clang/Sema/ObjCMethodList.h"
- #include "clang/Sema/Scope.h"
- #include "clang/Sema/Sema.h"
- #include "clang/Sema/Weak.h"
- #include "clang/Serialization/ASTBitCodes.h"
- #include "clang/Serialization/ASTDeserializationListener.h"
- #include "clang/Serialization/ContinuousRangeMap.h"
- #include "clang/Serialization/GlobalModuleIndex.h"
- #include "clang/Serialization/InMemoryModuleCache.h"
- #include "clang/Serialization/Module.h"
- #include "clang/Serialization/ModuleFileExtension.h"
- #include "clang/Serialization/ModuleManager.h"
- #include "clang/Serialization/PCHContainerOperations.h"
- #include "clang/Serialization/SerializationDiagnostic.h"
- #include "llvm/ADT/APFloat.h"
- #include "llvm/ADT/APInt.h"
- #include "llvm/ADT/APSInt.h"
- #include "llvm/ADT/ArrayRef.h"
- #include "llvm/ADT/DenseMap.h"
- #include "llvm/ADT/FoldingSet.h"
- #include "llvm/ADT/Hashing.h"
- #include "llvm/ADT/IntrusiveRefCntPtr.h"
- #include "llvm/ADT/None.h"
- #include "llvm/ADT/Optional.h"
- #include "llvm/ADT/STLExtras.h"
- #include "llvm/ADT/ScopeExit.h"
- #include "llvm/ADT/SmallPtrSet.h"
- #include "llvm/ADT/SmallString.h"
- #include "llvm/ADT/SmallVector.h"
- #include "llvm/ADT/StringExtras.h"
- #include "llvm/ADT/StringMap.h"
- #include "llvm/ADT/StringRef.h"
- #include "llvm/ADT/Triple.h"
- #include "llvm/ADT/iterator_range.h"
- #include "llvm/Bitstream/BitstreamReader.h"
- #include "llvm/Support/Casting.h"
- #include "llvm/Support/Compiler.h"
- #include "llvm/Support/Compression.h"
- #include "llvm/Support/DJB.h"
- #include "llvm/Support/Endian.h"
- #include "llvm/Support/Error.h"
- #include "llvm/Support/ErrorHandling.h"
- #include "llvm/Support/FileSystem.h"
- #include "llvm/Support/MemoryBuffer.h"
- #include "llvm/Support/Path.h"
- #include "llvm/Support/SaveAndRestore.h"
- #include "llvm/Support/Timer.h"
- #include "llvm/Support/VersionTuple.h"
- #include "llvm/Support/raw_ostream.h"
- #include <algorithm>
- #include <cassert>
- #include <cstddef>
- #include <cstdint>
- #include <cstdio>
- #include <ctime>
- #include <iterator>
- #include <limits>
- #include <map>
- #include <memory>
- #include <string>
- #include <system_error>
- #include <tuple>
- #include <utility>
- #include <vector>
- using namespace clang;
- using namespace clang::serialization;
- using namespace clang::serialization::reader;
- using llvm::BitstreamCursor;
- //===----------------------------------------------------------------------===//
- // ChainedASTReaderListener implementation
- //===----------------------------------------------------------------------===//
- bool
- ChainedASTReaderListener::ReadFullVersionInformation(StringRef FullVersion) {
- return First->ReadFullVersionInformation(FullVersion) ||
- Second->ReadFullVersionInformation(FullVersion);
- }
- void ChainedASTReaderListener::ReadModuleName(StringRef ModuleName) {
- First->ReadModuleName(ModuleName);
- Second->ReadModuleName(ModuleName);
- }
- void ChainedASTReaderListener::ReadModuleMapFile(StringRef ModuleMapPath) {
- First->ReadModuleMapFile(ModuleMapPath);
- Second->ReadModuleMapFile(ModuleMapPath);
- }
- bool
- ChainedASTReaderListener::ReadLanguageOptions(const LangOptions &LangOpts,
- bool Complain,
- bool AllowCompatibleDifferences) {
- return First->ReadLanguageOptions(LangOpts, Complain,
- AllowCompatibleDifferences) ||
- Second->ReadLanguageOptions(LangOpts, Complain,
- AllowCompatibleDifferences);
- }
- bool ChainedASTReaderListener::ReadTargetOptions(
- const TargetOptions &TargetOpts, bool Complain,
- bool AllowCompatibleDifferences) {
- return First->ReadTargetOptions(TargetOpts, Complain,
- AllowCompatibleDifferences) ||
- Second->ReadTargetOptions(TargetOpts, Complain,
- AllowCompatibleDifferences);
- }
- bool ChainedASTReaderListener::ReadDiagnosticOptions(
- IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts, bool Complain) {
- return First->ReadDiagnosticOptions(DiagOpts, Complain) ||
- Second->ReadDiagnosticOptions(DiagOpts, Complain);
- }
- bool
- ChainedASTReaderListener::ReadFileSystemOptions(const FileSystemOptions &FSOpts,
- bool Complain) {
- return First->ReadFileSystemOptions(FSOpts, Complain) ||
- Second->ReadFileSystemOptions(FSOpts, Complain);
- }
- bool ChainedASTReaderListener::ReadHeaderSearchOptions(
- const HeaderSearchOptions &HSOpts, StringRef SpecificModuleCachePath,
- bool Complain) {
- return First->ReadHeaderSearchOptions(HSOpts, SpecificModuleCachePath,
- Complain) ||
- Second->ReadHeaderSearchOptions(HSOpts, SpecificModuleCachePath,
- Complain);
- }
- bool ChainedASTReaderListener::ReadPreprocessorOptions(
- const PreprocessorOptions &PPOpts, bool Complain,
- std::string &SuggestedPredefines) {
- return First->ReadPreprocessorOptions(PPOpts, Complain,
- SuggestedPredefines) ||
- Second->ReadPreprocessorOptions(PPOpts, Complain, SuggestedPredefines);
- }
- void ChainedASTReaderListener::ReadCounter(const serialization::ModuleFile &M,
- unsigned Value) {
- First->ReadCounter(M, Value);
- Second->ReadCounter(M, Value);
- }
- bool ChainedASTReaderListener::needsInputFileVisitation() {
- return First->needsInputFileVisitation() ||
- Second->needsInputFileVisitation();
- }
- bool ChainedASTReaderListener::needsSystemInputFileVisitation() {
- return First->needsSystemInputFileVisitation() ||
- Second->needsSystemInputFileVisitation();
- }
- void ChainedASTReaderListener::visitModuleFile(StringRef Filename,
- ModuleKind Kind) {
- First->visitModuleFile(Filename, Kind);
- Second->visitModuleFile(Filename, Kind);
- }
- bool ChainedASTReaderListener::visitInputFile(StringRef Filename,
- bool isSystem,
- bool isOverridden,
- bool isExplicitModule) {
- bool Continue = false;
- if (First->needsInputFileVisitation() &&
- (!isSystem || First->needsSystemInputFileVisitation()))
- Continue |= First->visitInputFile(Filename, isSystem, isOverridden,
- isExplicitModule);
- if (Second->needsInputFileVisitation() &&
- (!isSystem || Second->needsSystemInputFileVisitation()))
- Continue |= Second->visitInputFile(Filename, isSystem, isOverridden,
- isExplicitModule);
- return Continue;
- }
- void ChainedASTReaderListener::readModuleFileExtension(
- const ModuleFileExtensionMetadata &Metadata) {
- First->readModuleFileExtension(Metadata);
- Second->readModuleFileExtension(Metadata);
- }
- //===----------------------------------------------------------------------===//
- // PCH validator implementation
- //===----------------------------------------------------------------------===//
- ASTReaderListener::~ASTReaderListener() = default;
- /// Compare the given set of language options against an existing set of
- /// language options.
- ///
- /// \param Diags If non-NULL, diagnostics will be emitted via this engine.
- /// \param AllowCompatibleDifferences If true, differences between compatible
- /// language options will be permitted.
- ///
- /// \returns true if the languagae options mis-match, false otherwise.
- static bool checkLanguageOptions(const LangOptions &LangOpts,
- const LangOptions &ExistingLangOpts,
- DiagnosticsEngine *Diags,
- bool AllowCompatibleDifferences = true) {
- #define LANGOPT(Name, Bits, Default, Description) \
- if (ExistingLangOpts.Name != LangOpts.Name) { \
- if (Diags) \
- Diags->Report(diag::err_pch_langopt_mismatch) \
- << Description << LangOpts.Name << ExistingLangOpts.Name; \
- return true; \
- }
- #define VALUE_LANGOPT(Name, Bits, Default, Description) \
- if (ExistingLangOpts.Name != LangOpts.Name) { \
- if (Diags) \
- Diags->Report(diag::err_pch_langopt_value_mismatch) \
- << Description; \
- return true; \
- }
- #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
- if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \
- if (Diags) \
- Diags->Report(diag::err_pch_langopt_value_mismatch) \
- << Description; \
- return true; \
- }
- #define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \
- if (!AllowCompatibleDifferences) \
- LANGOPT(Name, Bits, Default, Description)
- #define COMPATIBLE_ENUM_LANGOPT(Name, Bits, Default, Description) \
- if (!AllowCompatibleDifferences) \
- ENUM_LANGOPT(Name, Bits, Default, Description)
- #define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \
- if (!AllowCompatibleDifferences) \
- VALUE_LANGOPT(Name, Bits, Default, Description)
- #define BENIGN_LANGOPT(Name, Bits, Default, Description)
- #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
- #define BENIGN_VALUE_LANGOPT(Name, Type, Bits, Default, Description)
- #include "clang/Basic/LangOptions.def"
- if (ExistingLangOpts.ModuleFeatures != LangOpts.ModuleFeatures) {
- if (Diags)
- Diags->Report(diag::err_pch_langopt_value_mismatch) << "module features";
- return true;
- }
- if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) {
- if (Diags)
- Diags->Report(diag::err_pch_langopt_value_mismatch)
- << "target Objective-C runtime";
- return true;
- }
- if (ExistingLangOpts.CommentOpts.BlockCommandNames !=
- LangOpts.CommentOpts.BlockCommandNames) {
- if (Diags)
- Diags->Report(diag::err_pch_langopt_value_mismatch)
- << "block command names";
- return true;
- }
- // Sanitizer feature mismatches are treated as compatible differences. If
- // compatible differences aren't allowed, we still only want to check for
- // mismatches of non-modular sanitizers (the only ones which can affect AST
- // generation).
- if (!AllowCompatibleDifferences) {
- SanitizerMask ModularSanitizers = getPPTransparentSanitizers();
- SanitizerSet ExistingSanitizers = ExistingLangOpts.Sanitize;
- SanitizerSet ImportedSanitizers = LangOpts.Sanitize;
- ExistingSanitizers.clear(ModularSanitizers);
- ImportedSanitizers.clear(ModularSanitizers);
- if (ExistingSanitizers.Mask != ImportedSanitizers.Mask) {
- const std::string Flag = "-fsanitize=";
- if (Diags) {
- #define SANITIZER(NAME, ID) \
- { \
- bool InExistingModule = ExistingSanitizers.has(SanitizerKind::ID); \
- bool InImportedModule = ImportedSanitizers.has(SanitizerKind::ID); \
- if (InExistingModule != InImportedModule) \
- Diags->Report(diag::err_pch_targetopt_feature_mismatch) \
- << InExistingModule << (Flag + NAME); \
- }
- #include "clang/Basic/Sanitizers.def"
- }
- return true;
- }
- }
- return false;
- }
- /// Compare the given set of target options against an existing set of
- /// target options.
- ///
- /// \param Diags If non-NULL, diagnostics will be emitted via this engine.
- ///
- /// \returns true if the target options mis-match, false otherwise.
- static bool checkTargetOptions(const TargetOptions &TargetOpts,
- const TargetOptions &ExistingTargetOpts,
- DiagnosticsEngine *Diags,
- bool AllowCompatibleDifferences = true) {
- #define CHECK_TARGET_OPT(Field, Name) \
- if (TargetOpts.Field != ExistingTargetOpts.Field) { \
- if (Diags) \
- Diags->Report(diag::err_pch_targetopt_mismatch) \
- << Name << TargetOpts.Field << ExistingTargetOpts.Field; \
- return true; \
- }
- // The triple and ABI must match exactly.
- CHECK_TARGET_OPT(Triple, "target");
- CHECK_TARGET_OPT(ABI, "target ABI");
- // We can tolerate different CPUs in many cases, notably when one CPU
- // supports a strict superset of another. When allowing compatible
- // differences skip this check.
- if (!AllowCompatibleDifferences)
- CHECK_TARGET_OPT(CPU, "target CPU");
- #undef CHECK_TARGET_OPT
- // Compare feature sets.
- SmallVector<StringRef, 4> ExistingFeatures(
- ExistingTargetOpts.FeaturesAsWritten.begin(),
- ExistingTargetOpts.FeaturesAsWritten.end());
- SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(),
- TargetOpts.FeaturesAsWritten.end());
- llvm::sort(ExistingFeatures);
- llvm::sort(ReadFeatures);
- // We compute the set difference in both directions explicitly so that we can
- // diagnose the differences differently.
- SmallVector<StringRef, 4> UnmatchedExistingFeatures, UnmatchedReadFeatures;
- std::set_difference(
- ExistingFeatures.begin(), ExistingFeatures.end(), ReadFeatures.begin(),
- ReadFeatures.end(), std::back_inserter(UnmatchedExistingFeatures));
- std::set_difference(ReadFeatures.begin(), ReadFeatures.end(),
- ExistingFeatures.begin(), ExistingFeatures.end(),
- std::back_inserter(UnmatchedReadFeatures));
- // If we are allowing compatible differences and the read feature set is
- // a strict subset of the existing feature set, there is nothing to diagnose.
- if (AllowCompatibleDifferences && UnmatchedReadFeatures.empty())
- return false;
- if (Diags) {
- for (StringRef Feature : UnmatchedReadFeatures)
- Diags->Report(diag::err_pch_targetopt_feature_mismatch)
- << /* is-existing-feature */ false << Feature;
- for (StringRef Feature : UnmatchedExistingFeatures)
- Diags->Report(diag::err_pch_targetopt_feature_mismatch)
- << /* is-existing-feature */ true << Feature;
- }
- return !UnmatchedReadFeatures.empty() || !UnmatchedExistingFeatures.empty();
- }
- bool
- PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts,
- bool Complain,
- bool AllowCompatibleDifferences) {
- const LangOptions &ExistingLangOpts = PP.getLangOpts();
- return checkLanguageOptions(LangOpts, ExistingLangOpts,
- Complain ? &Reader.Diags : nullptr,
- AllowCompatibleDifferences);
- }
- bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts,
- bool Complain,
- bool AllowCompatibleDifferences) {
- const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts();
- return checkTargetOptions(TargetOpts, ExistingTargetOpts,
- Complain ? &Reader.Diags : nullptr,
- AllowCompatibleDifferences);
- }
- namespace {
- using MacroDefinitionsMap =
- llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/>>;
- using DeclsMap = llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8>>;
- } // namespace
- static bool checkDiagnosticGroupMappings(DiagnosticsEngine &StoredDiags,
- DiagnosticsEngine &Diags,
- bool Complain) {
- using Level = DiagnosticsEngine::Level;
- // Check current mappings for new -Werror mappings, and the stored mappings
- // for cases that were explicitly mapped to *not* be errors that are now
- // errors because of options like -Werror.
- DiagnosticsEngine *MappingSources[] = { &Diags, &StoredDiags };
- for (DiagnosticsEngine *MappingSource : MappingSources) {
- for (auto DiagIDMappingPair : MappingSource->getDiagnosticMappings()) {
- diag::kind DiagID = DiagIDMappingPair.first;
- Level CurLevel = Diags.getDiagnosticLevel(DiagID, SourceLocation());
- if (CurLevel < DiagnosticsEngine::Error)
- continue; // not significant
- Level StoredLevel =
- StoredDiags.getDiagnosticLevel(DiagID, SourceLocation());
- if (StoredLevel < DiagnosticsEngine::Error) {
- if (Complain)
- Diags.Report(diag::err_pch_diagopt_mismatch) << "-Werror=" +
- Diags.getDiagnosticIDs()->getWarningOptionForDiag(DiagID).str();
- return true;
- }
- }
- }
- return false;
- }
- static bool isExtHandlingFromDiagsError(DiagnosticsEngine &Diags) {
- diag::Severity Ext = Diags.getExtensionHandlingBehavior();
- if (Ext == diag::Severity::Warning && Diags.getWarningsAsErrors())
- return true;
- return Ext >= diag::Severity::Error;
- }
- static bool checkDiagnosticMappings(DiagnosticsEngine &StoredDiags,
- DiagnosticsEngine &Diags,
- bool IsSystem, bool Complain) {
- // Top-level options
- if (IsSystem) {
- if (Diags.getSuppressSystemWarnings())
- return false;
- // If -Wsystem-headers was not enabled before, be conservative
- if (StoredDiags.getSuppressSystemWarnings()) {
- if (Complain)
- Diags.Report(diag::err_pch_diagopt_mismatch) << "-Wsystem-headers";
- return true;
- }
- }
- if (Diags.getWarningsAsErrors() && !StoredDiags.getWarningsAsErrors()) {
- if (Complain)
- Diags.Report(diag::err_pch_diagopt_mismatch) << "-Werror";
- return true;
- }
- if (Diags.getWarningsAsErrors() && Diags.getEnableAllWarnings() &&
- !StoredDiags.getEnableAllWarnings()) {
- if (Complain)
- Diags.Report(diag::err_pch_diagopt_mismatch) << "-Weverything -Werror";
- return true;
- }
- if (isExtHandlingFromDiagsError(Diags) &&
- !isExtHandlingFromDiagsError(StoredDiags)) {
- if (Complain)
- Diags.Report(diag::err_pch_diagopt_mismatch) << "-pedantic-errors";
- return true;
- }
- return checkDiagnosticGroupMappings(StoredDiags, Diags, Complain);
- }
- /// Return the top import module if it is implicit, nullptr otherwise.
- static Module *getTopImportImplicitModule(ModuleManager &ModuleMgr,
- Preprocessor &PP) {
- // If the original import came from a file explicitly generated by the user,
- // don't check the diagnostic mappings.
- // FIXME: currently this is approximated by checking whether this is not a
- // module import of an implicitly-loaded module file.
- // Note: ModuleMgr.rbegin() may not be the current module, but it must be in
- // the transitive closure of its imports, since unrelated modules cannot be
- // imported until after this module finishes validation.
- ModuleFile *TopImport = &*ModuleMgr.rbegin();
- while (!TopImport->ImportedBy.empty())
- TopImport = TopImport->ImportedBy[0];
- if (TopImport->Kind != MK_ImplicitModule)
- return nullptr;
- StringRef ModuleName = TopImport->ModuleName;
- assert(!ModuleName.empty() && "diagnostic options read before module name");
- Module *M = PP.getHeaderSearchInfo().lookupModule(ModuleName);
- assert(M && "missing module");
- return M;
- }
- bool PCHValidator::ReadDiagnosticOptions(
- IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts, bool Complain) {
- DiagnosticsEngine &ExistingDiags = PP.getDiagnostics();
- IntrusiveRefCntPtr<DiagnosticIDs> DiagIDs(ExistingDiags.getDiagnosticIDs());
- IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
- new DiagnosticsEngine(DiagIDs, DiagOpts.get()));
- // This should never fail, because we would have processed these options
- // before writing them to an ASTFile.
- ProcessWarningOptions(*Diags, *DiagOpts, /*Report*/false);
- ModuleManager &ModuleMgr = Reader.getModuleManager();
- assert(ModuleMgr.size() >= 1 && "what ASTFile is this then");
- Module *TopM = getTopImportImplicitModule(ModuleMgr, PP);
- if (!TopM)
- return false;
- // FIXME: if the diagnostics are incompatible, save a DiagnosticOptions that
- // contains the union of their flags.
- return checkDiagnosticMappings(*Diags, ExistingDiags, TopM->IsSystem,
- Complain);
- }
- /// Collect the macro definitions provided by the given preprocessor
- /// options.
- static void
- collectMacroDefinitions(const PreprocessorOptions &PPOpts,
- MacroDefinitionsMap &Macros,
- SmallVectorImpl<StringRef> *MacroNames = nullptr) {
- for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) {
- StringRef Macro = PPOpts.Macros[I].first;
- bool IsUndef = PPOpts.Macros[I].second;
- std::pair<StringRef, StringRef> MacroPair = Macro.split('=');
- StringRef MacroName = MacroPair.first;
- StringRef MacroBody = MacroPair.second;
- // For an #undef'd macro, we only care about the name.
- if (IsUndef) {
- if (MacroNames && !Macros.count(MacroName))
- MacroNames->push_back(MacroName);
- Macros[MacroName] = std::make_pair("", true);
- continue;
- }
- // For a #define'd macro, figure out the actual definition.
- if (MacroName.size() == Macro.size())
- MacroBody = "1";
- else {
- // Note: GCC drops anything following an end-of-line character.
- StringRef::size_type End = MacroBody.find_first_of("\n\r");
- MacroBody = MacroBody.substr(0, End);
- }
- if (MacroNames && !Macros.count(MacroName))
- MacroNames->push_back(MacroName);
- Macros[MacroName] = std::make_pair(MacroBody, false);
- }
- }
- /// Check the preprocessor options deserialized from the control block
- /// against the preprocessor options in an existing preprocessor.
- ///
- /// \param Diags If non-null, produce diagnostics for any mismatches incurred.
- /// \param Validate If true, validate preprocessor options. If false, allow
- /// macros defined by \p ExistingPPOpts to override those defined by
- /// \p PPOpts in SuggestedPredefines.
- static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts,
- const PreprocessorOptions &ExistingPPOpts,
- DiagnosticsEngine *Diags,
- FileManager &FileMgr,
- std::string &SuggestedPredefines,
- const LangOptions &LangOpts,
- bool Validate = true) {
- // Check macro definitions.
- MacroDefinitionsMap ASTFileMacros;
- collectMacroDefinitions(PPOpts, ASTFileMacros);
- MacroDefinitionsMap ExistingMacros;
- SmallVector<StringRef, 4> ExistingMacroNames;
- collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames);
- for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) {
- // Dig out the macro definition in the existing preprocessor options.
- StringRef MacroName = ExistingMacroNames[I];
- std::pair<StringRef, bool> Existing = ExistingMacros[MacroName];
- // Check whether we know anything about this macro name or not.
- llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/>>::iterator Known =
- ASTFileMacros.find(MacroName);
- if (!Validate || Known == ASTFileMacros.end()) {
- // FIXME: Check whether this identifier was referenced anywhere in the
- // AST file. If so, we should reject the AST file. Unfortunately, this
- // information isn't in the control block. What shall we do about it?
- if (Existing.second) {
- SuggestedPredefines += "#undef ";
- SuggestedPredefines += MacroName.str();
- SuggestedPredefines += '\n';
- } else {
- SuggestedPredefines += "#define ";
- SuggestedPredefines += MacroName.str();
- SuggestedPredefines += ' ';
- SuggestedPredefines += Existing.first.str();
- SuggestedPredefines += '\n';
- }
- continue;
- }
- // If the macro was defined in one but undef'd in the other, we have a
- // conflict.
- if (Existing.second != Known->second.second) {
- if (Diags) {
- Diags->Report(diag::err_pch_macro_def_undef)
- << MacroName << Known->second.second;
- }
- return true;
- }
- // If the macro was #undef'd in both, or if the macro bodies are identical,
- // it's fine.
- if (Existing.second || Existing.first == Known->second.first)
- continue;
- // The macro bodies differ; complain.
- if (Diags) {
- Diags->Report(diag::err_pch_macro_def_conflict)
- << MacroName << Known->second.first << Existing.first;
- }
- return true;
- }
- // Check whether we're using predefines.
- if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines && Validate) {
- if (Diags) {
- Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines;
- }
- return true;
- }
- // Detailed record is important since it is used for the module cache hash.
- if (LangOpts.Modules &&
- PPOpts.DetailedRecord != ExistingPPOpts.DetailedRecord && Validate) {
- if (Diags) {
- Diags->Report(diag::err_pch_pp_detailed_record) << PPOpts.DetailedRecord;
- }
- return true;
- }
- // Compute the #include and #include_macros lines we need.
- for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) {
- StringRef File = ExistingPPOpts.Includes[I];
- if (!ExistingPPOpts.ImplicitPCHInclude.empty() &&
- !ExistingPPOpts.PCHThroughHeader.empty()) {
- // In case the through header is an include, we must add all the includes
- // to the predefines so the start point can be determined.
- SuggestedPredefines += "#include \"";
- SuggestedPredefines += File;
- SuggestedPredefines += "\"\n";
- continue;
- }
- if (File == ExistingPPOpts.ImplicitPCHInclude)
- continue;
- if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File)
- != PPOpts.Includes.end())
- continue;
- SuggestedPredefines += "#include \"";
- SuggestedPredefines += File;
- SuggestedPredefines += "\"\n";
- }
- for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) {
- StringRef File = ExistingPPOpts.MacroIncludes[I];
- if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(),
- File)
- != PPOpts.MacroIncludes.end())
- continue;
- SuggestedPredefines += "#__include_macros \"";
- SuggestedPredefines += File;
- SuggestedPredefines += "\"\n##\n";
- }
- return false;
- }
- bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
- bool Complain,
- std::string &SuggestedPredefines) {
- const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts();
- return checkPreprocessorOptions(PPOpts, ExistingPPOpts,
- Complain? &Reader.Diags : nullptr,
- PP.getFileManager(),
- SuggestedPredefines,
- PP.getLangOpts());
- }
- bool SimpleASTReaderListener::ReadPreprocessorOptions(
- const PreprocessorOptions &PPOpts,
- bool Complain,
- std::string &SuggestedPredefines) {
- return checkPreprocessorOptions(PPOpts,
- PP.getPreprocessorOpts(),
- nullptr,
- PP.getFileManager(),
- SuggestedPredefines,
- PP.getLangOpts(),
- false);
- }
- /// Check the header search options deserialized from the control block
- /// against the header search options in an existing preprocessor.
- ///
- /// \param Diags If non-null, produce diagnostics for any mismatches incurred.
- static bool checkHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
- StringRef SpecificModuleCachePath,
- StringRef ExistingModuleCachePath,
- DiagnosticsEngine *Diags,
- const LangOptions &LangOpts) {
- if (LangOpts.Modules) {
- if (SpecificModuleCachePath != ExistingModuleCachePath) {
- if (Diags)
- Diags->Report(diag::err_pch_modulecache_mismatch)
- << SpecificModuleCachePath << ExistingModuleCachePath;
- return true;
- }
- }
- return false;
- }
- bool PCHValidator::ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
- StringRef SpecificModuleCachePath,
- bool Complain) {
- return checkHeaderSearchOptions(HSOpts, SpecificModuleCachePath,
- PP.getHeaderSearchInfo().getModuleCachePath(),
- Complain ? &Reader.Diags : nullptr,
- PP.getLangOpts());
- }
- void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) {
- PP.setCounterValue(Value);
- }
- //===----------------------------------------------------------------------===//
- // AST reader implementation
- //===----------------------------------------------------------------------===//
- void ASTReader::setDeserializationListener(ASTDeserializationListener *Listener,
- bool TakeOwnership) {
- DeserializationListener = Listener;
- OwnsDeserializationListener = TakeOwnership;
- }
- unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) {
- return serialization::ComputeHash(Sel);
- }
- std::pair<unsigned, unsigned>
- ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
- using namespace llvm::support;
- unsigned KeyLen = endian::readNext<uint16_t, little, unaligned>(d);
- unsigned DataLen = endian::readNext<uint16_t, little, unaligned>(d);
- return std::make_pair(KeyLen, DataLen);
- }
- ASTSelectorLookupTrait::internal_key_type
- ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
- using namespace llvm::support;
- SelectorTable &SelTable = Reader.getContext().Selectors;
- unsigned N = endian::readNext<uint16_t, little, unaligned>(d);
- IdentifierInfo *FirstII = Reader.getLocalIdentifier(
- F, endian::readNext<uint32_t, little, unaligned>(d));
- if (N == 0)
- return SelTable.getNullarySelector(FirstII);
- else if (N == 1)
- return SelTable.getUnarySelector(FirstII);
- SmallVector<IdentifierInfo *, 16> Args;
- Args.push_back(FirstII);
- for (unsigned I = 1; I != N; ++I)
- Args.push_back(Reader.getLocalIdentifier(
- F, endian::readNext<uint32_t, little, unaligned>(d)));
- return SelTable.getSelector(N, Args.data());
- }
- ASTSelectorLookupTrait::data_type
- ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
- unsigned DataLen) {
- using namespace llvm::support;
- data_type Result;
- Result.ID = Reader.getGlobalSelectorID(
- F, endian::readNext<uint32_t, little, unaligned>(d));
- unsigned FullInstanceBits = endian::readNext<uint16_t, little, unaligned>(d);
- unsigned FullFactoryBits = endian::readNext<uint16_t, little, unaligned>(d);
- Result.InstanceBits = FullInstanceBits & 0x3;
- Result.InstanceHasMoreThanOneDecl = (FullInstanceBits >> 2) & 0x1;
- Result.FactoryBits = FullFactoryBits & 0x3;
- Result.FactoryHasMoreThanOneDecl = (FullFactoryBits >> 2) & 0x1;
- unsigned NumInstanceMethods = FullInstanceBits >> 3;
- unsigned NumFactoryMethods = FullFactoryBits >> 3;
- // Load instance methods
- for (unsigned I = 0; I != NumInstanceMethods; ++I) {
- if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>(
- F, endian::readNext<uint32_t, little, unaligned>(d)))
- Result.Instance.push_back(Method);
- }
- // Load factory methods
- for (unsigned I = 0; I != NumFactoryMethods; ++I) {
- if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>(
- F, endian::readNext<uint32_t, little, unaligned>(d)))
- Result.Factory.push_back(Method);
- }
- return Result;
- }
- unsigned ASTIdentifierLookupTraitBase::ComputeHash(const internal_key_type& a) {
- return llvm::djbHash(a);
- }
- std::pair<unsigned, unsigned>
- ASTIdentifierLookupTraitBase::ReadKeyDataLength(const unsigned char*& d) {
- using namespace llvm::support;
- unsigned DataLen = endian::readNext<uint16_t, little, unaligned>(d);
- unsigned KeyLen = endian::readNext<uint16_t, little, unaligned>(d);
- return std::make_pair(KeyLen, DataLen);
- }
- ASTIdentifierLookupTraitBase::internal_key_type
- ASTIdentifierLookupTraitBase::ReadKey(const unsigned char* d, unsigned n) {
- assert(n >= 2 && d[n-1] == '\0');
- return StringRef((const char*) d, n-1);
- }
- /// Whether the given identifier is "interesting".
- static bool isInterestingIdentifier(ASTReader &Reader, IdentifierInfo &II,
- bool IsModule) {
- return II.hadMacroDefinition() ||
- II.isPoisoned() ||
- (IsModule ? II.hasRevertedBuiltin() : II.getObjCOrBuiltinID()) ||
- II.hasRevertedTokenIDToIdentifier() ||
- (!(IsModule && Reader.getPreprocessor().getLangOpts().CPlusPlus) &&
- II.getFETokenInfo());
- }
- static bool readBit(unsigned &Bits) {
- bool Value = Bits & 0x1;
- Bits >>= 1;
- return Value;
- }
- IdentID ASTIdentifierLookupTrait::ReadIdentifierID(const unsigned char *d) {
- using namespace llvm::support;
- unsigned RawID = endian::readNext<uint32_t, little, unaligned>(d);
- return Reader.getGlobalIdentifierID(F, RawID >> 1);
- }
- static void markIdentifierFromAST(ASTReader &Reader, IdentifierInfo &II) {
- if (!II.isFromAST()) {
- II.setIsFromAST();
- bool IsModule = Reader.getPreprocessor().getCurrentModule() != nullptr;
- if (isInterestingIdentifier(Reader, II, IsModule))
- II.setChangedSinceDeserialization();
- }
- }
- IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
- const unsigned char* d,
- unsigned DataLen) {
- using namespace llvm::support;
- unsigned RawID = endian::readNext<uint32_t, little, unaligned>(d);
- bool IsInteresting = RawID & 0x01;
- // Wipe out the "is interesting" bit.
- RawID = RawID >> 1;
- // Build the IdentifierInfo and link the identifier ID with it.
- IdentifierInfo *II = KnownII;
- if (!II) {
- II = &Reader.getIdentifierTable().getOwn(k);
- KnownII = II;
- }
- markIdentifierFromAST(Reader, *II);
- Reader.markIdentifierUpToDate(II);
- IdentID ID = Reader.getGlobalIdentifierID(F, RawID);
- if (!IsInteresting) {
- // For uninteresting identifiers, there's nothing else to do. Just notify
- // the reader that we've finished loading this identifier.
- Reader.SetIdentifierInfo(ID, II);
- return II;
- }
- unsigned ObjCOrBuiltinID = endian::readNext<uint16_t, little, unaligned>(d);
- unsigned Bits = endian::readNext<uint16_t, little, unaligned>(d);
- bool CPlusPlusOperatorKeyword = readBit(Bits);
- bool HasRevertedTokenIDToIdentifier = readBit(Bits);
- bool HasRevertedBuiltin = readBit(Bits);
- bool Poisoned = readBit(Bits);
- bool ExtensionToken = readBit(Bits);
- bool HadMacroDefinition = readBit(Bits);
- assert(Bits == 0 && "Extra bits in the identifier?");
- DataLen -= 8;
- // Set or check the various bits in the IdentifierInfo structure.
- // Token IDs are read-only.
- if (HasRevertedTokenIDToIdentifier && II->getTokenID() != tok::identifier)
- II->revertTokenIDToIdentifier();
- if (!F.isModule())
- II->setObjCOrBuiltinID(ObjCOrBuiltinID);
- else if (HasRevertedBuiltin && II->getBuiltinID()) {
- II->revertBuiltin();
- assert((II->hasRevertedBuiltin() ||
- II->getObjCOrBuiltinID() == ObjCOrBuiltinID) &&
- "Incorrect ObjC keyword or builtin ID");
- }
- assert(II->isExtensionToken() == ExtensionToken &&
- "Incorrect extension token flag");
- (void)ExtensionToken;
- if (Poisoned)
- II->setIsPoisoned(true);
- assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword &&
- "Incorrect C++ operator keyword flag");
- (void)CPlusPlusOperatorKeyword;
- // If this identifier is a macro, deserialize the macro
- // definition.
- if (HadMacroDefinition) {
- uint32_t MacroDirectivesOffset =
- endian::readNext<uint32_t, little, unaligned>(d);
- DataLen -= 4;
- Reader.addPendingMacro(II, &F, MacroDirectivesOffset);
- }
- Reader.SetIdentifierInfo(ID, II);
- // Read all of the declarations visible at global scope with this
- // name.
- if (DataLen > 0) {
- SmallVector<uint32_t, 4> DeclIDs;
- for (; DataLen > 0; DataLen -= 4)
- DeclIDs.push_back(Reader.getGlobalDeclID(
- F, endian::readNext<uint32_t, little, unaligned>(d)));
- Reader.SetGloballyVisibleDecls(II, DeclIDs);
- }
- return II;
- }
- DeclarationNameKey::DeclarationNameKey(DeclarationName Name)
- : Kind(Name.getNameKind()) {
- switch (Kind) {
- case DeclarationName::Identifier:
- Data = (uint64_t)Name.getAsIdentifierInfo();
- break;
- case DeclarationName::ObjCZeroArgSelector:
- case DeclarationName::ObjCOneArgSelector:
- case DeclarationName::ObjCMultiArgSelector:
- Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr();
- break;
- case DeclarationName::CXXOperatorName:
- Data = Name.getCXXOverloadedOperator();
- break;
- case DeclarationName::CXXLiteralOperatorName:
- Data = (uint64_t)Name.getCXXLiteralIdentifier();
- break;
- case DeclarationName::CXXDeductionGuideName:
- Data = (uint64_t)Name.getCXXDeductionGuideTemplate()
- ->getDeclName().getAsIdentifierInfo();
- break;
- case DeclarationName::CXXConstructorName:
- case DeclarationName::CXXDestructorName:
- case DeclarationName::CXXConversionFunctionName:
- case DeclarationName::CXXUsingDirective:
- Data = 0;
- break;
- }
- }
- unsigned DeclarationNameKey::getHash() const {
- llvm::FoldingSetNodeID ID;
- ID.AddInteger(Kind);
- switch (Kind) {
- case DeclarationName::Identifier:
- case DeclarationName::CXXLiteralOperatorName:
- case DeclarationName::CXXDeductionGuideName:
- ID.AddString(((IdentifierInfo*)Data)->getName());
- break;
- case DeclarationName::ObjCZeroArgSelector:
- case DeclarationName::ObjCOneArgSelector:
- case DeclarationName::ObjCMultiArgSelector:
- ID.AddInteger(serialization::ComputeHash(Selector(Data)));
- break;
- case DeclarationName::CXXOperatorName:
- ID.AddInteger((OverloadedOperatorKind)Data);
- break;
- case DeclarationName::CXXConstructorName:
- case DeclarationName::CXXDestructorName:
- case DeclarationName::CXXConversionFunctionName:
- case DeclarationName::CXXUsingDirective:
- break;
- }
- return ID.ComputeHash();
- }
- ModuleFile *
- ASTDeclContextNameLookupTrait::ReadFileRef(const unsigned char *&d) {
- using namespace llvm::support;
- uint32_t ModuleFileID = endian::readNext<uint32_t, little, unaligned>(d);
- return Reader.getLocalModuleFile(F, ModuleFileID);
- }
- std::pair<unsigned, unsigned>
- ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char *&d) {
- using namespace llvm::support;
- unsigned KeyLen = endian::readNext<uint16_t, little, unaligned>(d);
- unsigned DataLen = endian::readNext<uint16_t, little, unaligned>(d);
- return std::make_pair(KeyLen, DataLen);
- }
- ASTDeclContextNameLookupTrait::internal_key_type
- ASTDeclContextNameLookupTrait::ReadKey(const unsigned char *d, unsigned) {
- using namespace llvm::support;
- auto Kind = (DeclarationName::NameKind)*d++;
- uint64_t Data;
- switch (Kind) {
- case DeclarationName::Identifier:
- case DeclarationName::CXXLiteralOperatorName:
- case DeclarationName::CXXDeductionGuideName:
- Data = (uint64_t)Reader.getLocalIdentifier(
- F, endian::readNext<uint32_t, little, unaligned>(d));
- break;
- case DeclarationName::ObjCZeroArgSelector:
- case DeclarationName::ObjCOneArgSelector:
- case DeclarationName::ObjCMultiArgSelector:
- Data =
- (uint64_t)Reader.getLocalSelector(
- F, endian::readNext<uint32_t, little, unaligned>(
- d)).getAsOpaquePtr();
- break;
- case DeclarationName::CXXOperatorName:
- Data = *d++; // OverloadedOperatorKind
- break;
- case DeclarationName::CXXConstructorName:
- case DeclarationName::CXXDestructorName:
- case DeclarationName::CXXConversionFunctionName:
- case DeclarationName::CXXUsingDirective:
- Data = 0;
- break;
- }
- return DeclarationNameKey(Kind, Data);
- }
- void ASTDeclContextNameLookupTrait::ReadDataInto(internal_key_type,
- const unsigned char *d,
- unsigned DataLen,
- data_type_builder &Val) {
- using namespace llvm::support;
- for (unsigned NumDecls = DataLen / 4; NumDecls; --NumDecls) {
- uint32_t LocalID = endian::readNext<uint32_t, little, unaligned>(d);
- Val.insert(Reader.getGlobalDeclID(F, LocalID));
- }
- }
- bool ASTReader::ReadLexicalDeclContextStorage(ModuleFile &M,
- BitstreamCursor &Cursor,
- uint64_t Offset,
- DeclContext *DC) {
- assert(Offset != 0);
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(Offset)) {
- Error(std::move(Err));
- return true;
- }
- RecordData Record;
- StringRef Blob;
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- Error(MaybeCode.takeError());
- return true;
- }
- unsigned Code = MaybeCode.get();
- Expected<unsigned> MaybeRecCode = Cursor.readRecord(Code, Record, &Blob);
- if (!MaybeRecCode) {
- Error(MaybeRecCode.takeError());
- return true;
- }
- unsigned RecCode = MaybeRecCode.get();
- if (RecCode != DECL_CONTEXT_LEXICAL) {
- Error("Expected lexical block");
- return true;
- }
- assert(!isa<TranslationUnitDecl>(DC) &&
- "expected a TU_UPDATE_LEXICAL record for TU");
- // If we are handling a C++ class template instantiation, we can see multiple
- // lexical updates for the same record. It's important that we select only one
- // of them, so that field numbering works properly. Just pick the first one we
- // see.
- auto &Lex = LexicalDecls[DC];
- if (!Lex.first) {
- Lex = std::make_pair(
- &M, llvm::makeArrayRef(
- reinterpret_cast<const llvm::support::unaligned_uint32_t *>(
- Blob.data()),
- Blob.size() / 4));
- }
- DC->setHasExternalLexicalStorage(true);
- return false;
- }
- bool ASTReader::ReadVisibleDeclContextStorage(ModuleFile &M,
- BitstreamCursor &Cursor,
- uint64_t Offset,
- DeclID ID) {
- assert(Offset != 0);
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(Offset)) {
- Error(std::move(Err));
- return true;
- }
- RecordData Record;
- StringRef Blob;
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- Error(MaybeCode.takeError());
- return true;
- }
- unsigned Code = MaybeCode.get();
- Expected<unsigned> MaybeRecCode = Cursor.readRecord(Code, Record, &Blob);
- if (!MaybeRecCode) {
- Error(MaybeRecCode.takeError());
- return true;
- }
- unsigned RecCode = MaybeRecCode.get();
- if (RecCode != DECL_CONTEXT_VISIBLE) {
- Error("Expected visible lookup table block");
- return true;
- }
- // We can't safely determine the primary context yet, so delay attaching the
- // lookup table until we're done with recursive deserialization.
- auto *Data = (const unsigned char*)Blob.data();
- PendingVisibleUpdates[ID].push_back(PendingVisibleUpdate{&M, Data});
- return false;
- }
- void ASTReader::Error(StringRef Msg) const {
- Error(diag::err_fe_pch_malformed, Msg);
- if (PP.getLangOpts().Modules && !Diags.isDiagnosticInFlight() &&
- !PP.getHeaderSearchInfo().getModuleCachePath().empty()) {
- Diag(diag::note_module_cache_path)
- << PP.getHeaderSearchInfo().getModuleCachePath();
- }
- }
- void ASTReader::Error(unsigned DiagID,
- StringRef Arg1, StringRef Arg2) const {
- if (Diags.isDiagnosticInFlight())
- Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2);
- else
- Diag(DiagID) << Arg1 << Arg2;
- }
- void ASTReader::Error(unsigned DiagID, StringRef Arg1, StringRef Arg2,
- unsigned Select) const {
- if (!Diags.isDiagnosticInFlight())
- Diag(DiagID) << Arg1 << Arg2 << Select;
- }
- void ASTReader::Error(llvm::Error &&Err) const {
- Error(toString(std::move(Err)));
- }
- //===----------------------------------------------------------------------===//
- // Source Manager Deserialization
- //===----------------------------------------------------------------------===//
- /// Read the line table in the source manager block.
- /// \returns true if there was an error.
- bool ASTReader::ParseLineTable(ModuleFile &F,
- const RecordData &Record) {
- unsigned Idx = 0;
- LineTableInfo &LineTable = SourceMgr.getLineTable();
- // Parse the file names
- std::map<int, int> FileIDs;
- FileIDs[-1] = -1; // For unspecified filenames.
- for (unsigned I = 0; Record[Idx]; ++I) {
- // Extract the file name
- auto Filename = ReadPath(F, Record, Idx);
- FileIDs[I] = LineTable.getLineTableFilenameID(Filename);
- }
- ++Idx;
- // Parse the line entries
- std::vector<LineEntry> Entries;
- while (Idx < Record.size()) {
- int FID = Record[Idx++];
- assert(FID >= 0 && "Serialized line entries for non-local file.");
- // Remap FileID from 1-based old view.
- FID += F.SLocEntryBaseID - 1;
- // Extract the line entries
- unsigned NumEntries = Record[Idx++];
- assert(NumEntries && "no line entries for file ID");
- Entries.clear();
- Entries.reserve(NumEntries);
- for (unsigned I = 0; I != NumEntries; ++I) {
- unsigned FileOffset = Record[Idx++];
- unsigned LineNo = Record[Idx++];
- int FilenameID = FileIDs[Record[Idx++]];
- SrcMgr::CharacteristicKind FileKind
- = (SrcMgr::CharacteristicKind)Record[Idx++];
- unsigned IncludeOffset = Record[Idx++];
- Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID,
- FileKind, IncludeOffset));
- }
- LineTable.AddEntry(FileID::get(FID), Entries);
- }
- return false;
- }
- /// Read a source manager block
- bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) {
- using namespace SrcMgr;
- BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor;
- // Set the source-location entry cursor to the current position in
- // the stream. This cursor will be used to read the contents of the
- // source manager block initially, and then lazily read
- // source-location entries as needed.
- SLocEntryCursor = F.Stream;
- // The stream itself is going to skip over the source manager block.
- if (llvm::Error Err = F.Stream.SkipBlock()) {
- Error(std::move(Err));
- return true;
- }
- // Enter the source manager block.
- if (llvm::Error Err =
- SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) {
- Error(std::move(Err));
- return true;
- }
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeE =
- SLocEntryCursor.advanceSkippingSubblocks();
- if (!MaybeE) {
- Error(MaybeE.takeError());
- return true;
- }
- llvm::BitstreamEntry E = MaybeE.get();
- switch (E.Kind) {
- case llvm::BitstreamEntry::SubBlock: // Handled for us already.
- case llvm::BitstreamEntry::Error:
- Error("malformed block record in AST file");
- return true;
- case llvm::BitstreamEntry::EndBlock:
- return false;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read a record.
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecord =
- SLocEntryCursor.readRecord(E.ID, Record, &Blob);
- if (!MaybeRecord) {
- Error(MaybeRecord.takeError());
- return true;
- }
- switch (MaybeRecord.get()) {
- default: // Default behavior: ignore.
- break;
- case SM_SLOC_FILE_ENTRY:
- case SM_SLOC_BUFFER_ENTRY:
- case SM_SLOC_EXPANSION_ENTRY:
- // Once we hit one of the source location entries, we're done.
- return false;
- }
- }
- }
- /// If a header file is not found at the path that we expect it to be
- /// and the PCH file was moved from its original location, try to resolve the
- /// file by assuming that header+PCH were moved together and the header is in
- /// the same place relative to the PCH.
- static std::string
- resolveFileRelativeToOriginalDir(const std::string &Filename,
- const std::string &OriginalDir,
- const std::string &CurrDir) {
- assert(OriginalDir != CurrDir &&
- "No point trying to resolve the file if the PCH dir didn't change");
- using namespace llvm::sys;
- SmallString<128> filePath(Filename);
- fs::make_absolute(filePath);
- assert(path::is_absolute(OriginalDir));
- SmallString<128> currPCHPath(CurrDir);
- path::const_iterator fileDirI = path::begin(path::parent_path(filePath)),
- fileDirE = path::end(path::parent_path(filePath));
- path::const_iterator origDirI = path::begin(OriginalDir),
- origDirE = path::end(OriginalDir);
- // Skip the common path components from filePath and OriginalDir.
- while (fileDirI != fileDirE && origDirI != origDirE &&
- *fileDirI == *origDirI) {
- ++fileDirI;
- ++origDirI;
- }
- for (; origDirI != origDirE; ++origDirI)
- path::append(currPCHPath, "..");
- path::append(currPCHPath, fileDirI, fileDirE);
- path::append(currPCHPath, path::filename(Filename));
- return currPCHPath.str();
- }
- bool ASTReader::ReadSLocEntry(int ID) {
- if (ID == 0)
- return false;
- if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) {
- Error("source location entry ID out-of-range for AST file");
- return true;
- }
- // Local helper to read the (possibly-compressed) buffer data following the
- // entry record.
- auto ReadBuffer = [this](
- BitstreamCursor &SLocEntryCursor,
- StringRef Name) -> std::unique_ptr<llvm::MemoryBuffer> {
- RecordData Record;
- StringRef Blob;
- Expected<unsigned> MaybeCode = SLocEntryCursor.ReadCode();
- if (!MaybeCode) {
- Error(MaybeCode.takeError());
- return nullptr;
- }
- unsigned Code = MaybeCode.get();
- Expected<unsigned> MaybeRecCode =
- SLocEntryCursor.readRecord(Code, Record, &Blob);
- if (!MaybeRecCode) {
- Error(MaybeRecCode.takeError());
- return nullptr;
- }
- unsigned RecCode = MaybeRecCode.get();
- if (RecCode == SM_SLOC_BUFFER_BLOB_COMPRESSED) {
- if (!llvm::zlib::isAvailable()) {
- Error("zlib is not available");
- return nullptr;
- }
- SmallString<0> Uncompressed;
- if (llvm::Error E =
- llvm::zlib::uncompress(Blob, Uncompressed, Record[0])) {
- Error("could not decompress embedded file contents: " +
- llvm::toString(std::move(E)));
- return nullptr;
- }
- return llvm::MemoryBuffer::getMemBufferCopy(Uncompressed, Name);
- } else if (RecCode == SM_SLOC_BUFFER_BLOB) {
- return llvm::MemoryBuffer::getMemBuffer(Blob.drop_back(1), Name, true);
- } else {
- Error("AST record has invalid code");
- return nullptr;
- }
- };
- ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second;
- if (llvm::Error Err = F->SLocEntryCursor.JumpToBit(
- F->SLocEntryOffsets[ID - F->SLocEntryBaseID])) {
- Error(std::move(Err));
- return true;
- }
- BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor;
- unsigned BaseOffset = F->SLocEntryBaseOffset;
- ++NumSLocEntriesRead;
- Expected<llvm::BitstreamEntry> MaybeEntry = SLocEntryCursor.advance();
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return true;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- if (Entry.Kind != llvm::BitstreamEntry::Record) {
- Error("incorrectly-formatted source location entry in AST file");
- return true;
- }
- RecordData Record;
- StringRef Blob;
- Expected<unsigned> MaybeSLOC =
- SLocEntryCursor.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeSLOC) {
- Error(MaybeSLOC.takeError());
- return true;
- }
- switch (MaybeSLOC.get()) {
- default:
- Error("incorrectly-formatted source location entry in AST file");
- return true;
- case SM_SLOC_FILE_ENTRY: {
- // We will detect whether a file changed and return 'Failure' for it, but
- // we will also try to fail gracefully by setting up the SLocEntry.
- unsigned InputID = Record[4];
- InputFile IF = getInputFile(*F, InputID);
- const FileEntry *File = IF.getFile();
- bool OverriddenBuffer = IF.isOverridden();
- // Note that we only check if a File was returned. If it was out-of-date
- // we have complained but we will continue creating a FileID to recover
- // gracefully.
- if (!File)
- return true;
- SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]);
- if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) {
- // This is the module's main file.
- IncludeLoc = getImportLocation(F);
- }
- SrcMgr::CharacteristicKind
- FileCharacter = (SrcMgr::CharacteristicKind)Record[2];
- // FIXME: The FileID should be created from the FileEntryRef.
- FileID FID = SourceMgr.createFileID(File, IncludeLoc, FileCharacter,
- ID, BaseOffset + Record[0]);
- SrcMgr::FileInfo &FileInfo =
- const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile());
- FileInfo.NumCreatedFIDs = Record[5];
- if (Record[3])
- FileInfo.setHasLineDirectives();
- unsigned NumFileDecls = Record[7];
- if (NumFileDecls && ContextObj) {
- const DeclID *FirstDecl = F->FileSortedDecls + Record[6];
- assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?");
- FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl,
- NumFileDecls));
- }
- const SrcMgr::ContentCache *ContentCache
- = SourceMgr.getOrCreateContentCache(File, isSystem(FileCharacter));
- if (OverriddenBuffer && !ContentCache->BufferOverridden &&
- ContentCache->ContentsEntry == ContentCache->OrigEntry &&
- !ContentCache->getRawBuffer()) {
- auto Buffer = ReadBuffer(SLocEntryCursor, File->getName());
- if (!Buffer)
- return true;
- SourceMgr.overrideFileContents(File, std::move(Buffer));
- }
- break;
- }
- case SM_SLOC_BUFFER_ENTRY: {
- const char *Name = Blob.data();
- unsigned Offset = Record[0];
- SrcMgr::CharacteristicKind
- FileCharacter = (SrcMgr::CharacteristicKind)Record[2];
- SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]);
- if (IncludeLoc.isInvalid() && F->isModule()) {
- IncludeLoc = getImportLocation(F);
- }
- auto Buffer = ReadBuffer(SLocEntryCursor, Name);
- if (!Buffer)
- return true;
- SourceMgr.createFileID(std::move(Buffer), FileCharacter, ID,
- BaseOffset + Offset, IncludeLoc);
- break;
- }
- case SM_SLOC_EXPANSION_ENTRY: {
- SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]);
- SourceMgr.createExpansionLoc(SpellingLoc,
- ReadSourceLocation(*F, Record[2]),
- ReadSourceLocation(*F, Record[3]),
- Record[5],
- Record[4],
- ID,
- BaseOffset + Record[0]);
- break;
- }
- }
- return false;
- }
- std::pair<SourceLocation, StringRef> ASTReader::getModuleImportLoc(int ID) {
- if (ID == 0)
- return std::make_pair(SourceLocation(), "");
- if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) {
- Error("source location entry ID out-of-range for AST file");
- return std::make_pair(SourceLocation(), "");
- }
- // Find which module file this entry lands in.
- ModuleFile *M = GlobalSLocEntryMap.find(-ID)->second;
- if (!M->isModule())
- return std::make_pair(SourceLocation(), "");
- // FIXME: Can we map this down to a particular submodule? That would be
- // ideal.
- return std::make_pair(M->ImportLoc, StringRef(M->ModuleName));
- }
- /// Find the location where the module F is imported.
- SourceLocation ASTReader::getImportLocation(ModuleFile *F) {
- if (F->ImportLoc.isValid())
- return F->ImportLoc;
- // Otherwise we have a PCH. It's considered to be "imported" at the first
- // location of its includer.
- if (F->ImportedBy.empty() || !F->ImportedBy[0]) {
- // Main file is the importer.
- assert(SourceMgr.getMainFileID().isValid() && "missing main file");
- return SourceMgr.getLocForStartOfFile(SourceMgr.getMainFileID());
- }
- return F->ImportedBy[0]->FirstLoc;
- }
- /// Enter a subblock of the specified BlockID with the specified cursor. Read
- /// the abbreviations that are at the top of the block and then leave the cursor
- /// pointing into the block.
- bool ASTReader::ReadBlockAbbrevs(BitstreamCursor &Cursor, unsigned BlockID) {
- if (llvm::Error Err = Cursor.EnterSubBlock(BlockID)) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- return true;
- }
- while (true) {
- uint64_t Offset = Cursor.GetCurrentBitNo();
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeCode.takeError());
- return true;
- }
- unsigned Code = MaybeCode.get();
- // We expect all abbrevs to be at the start of the block.
- if (Code != llvm::bitc::DEFINE_ABBREV) {
- if (llvm::Error Err = Cursor.JumpToBit(Offset)) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- return true;
- }
- return false;
- }
- if (llvm::Error Err = Cursor.ReadAbbrevRecord()) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- return true;
- }
- }
- }
- Token ASTReader::ReadToken(ModuleFile &F, const RecordDataImpl &Record,
- unsigned &Idx) {
- Token Tok;
- Tok.startToken();
- Tok.setLocation(ReadSourceLocation(F, Record, Idx));
- Tok.setLength(Record[Idx++]);
- if (IdentifierInfo *II = getLocalIdentifier(F, Record[Idx++]))
- Tok.setIdentifierInfo(II);
- Tok.setKind((tok::TokenKind)Record[Idx++]);
- Tok.setFlag((Token::TokenFlags)Record[Idx++]);
- return Tok;
- }
- MacroInfo *ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) {
- BitstreamCursor &Stream = F.MacroCursor;
- // Keep track of where we are in the stream, then jump back there
- // after reading this macro.
- SavedStreamPosition SavedPosition(Stream);
- if (llvm::Error Err = Stream.JumpToBit(Offset)) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- return nullptr;
- }
- RecordData Record;
- SmallVector<IdentifierInfo*, 16> MacroParams;
- MacroInfo *Macro = nullptr;
- while (true) {
- // Advance to the next record, but if we get to the end of the block, don't
- // pop it (removing all the abbreviations from the cursor) since we want to
- // be able to reseek within the block and read entries.
- unsigned Flags = BitstreamCursor::AF_DontPopBlockAtEnd;
- Expected<llvm::BitstreamEntry> MaybeEntry =
- Stream.advanceSkippingSubblocks(Flags);
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return Macro;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::SubBlock: // Handled for us already.
- case llvm::BitstreamEntry::Error:
- Error("malformed block record in AST file");
- return Macro;
- case llvm::BitstreamEntry::EndBlock:
- return Macro;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read a record.
- Record.clear();
- PreprocessorRecordTypes RecType;
- if (Expected<unsigned> MaybeRecType = Stream.readRecord(Entry.ID, Record))
- RecType = (PreprocessorRecordTypes)MaybeRecType.get();
- else {
- Error(MaybeRecType.takeError());
- return Macro;
- }
- switch (RecType) {
- case PP_MODULE_MACRO:
- case PP_MACRO_DIRECTIVE_HISTORY:
- return Macro;
- case PP_MACRO_OBJECT_LIKE:
- case PP_MACRO_FUNCTION_LIKE: {
- // If we already have a macro, that means that we've hit the end
- // of the definition of the macro we were looking for. We're
- // done.
- if (Macro)
- return Macro;
- unsigned NextIndex = 1; // Skip identifier ID.
- SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex);
- MacroInfo *MI = PP.AllocateMacroInfo(Loc);
- MI->setDefinitionEndLoc(ReadSourceLocation(F, Record, NextIndex));
- MI->setIsUsed(Record[NextIndex++]);
- MI->setUsedForHeaderGuard(Record[NextIndex++]);
- if (RecType == PP_MACRO_FUNCTION_LIKE) {
- // Decode function-like macro info.
- bool isC99VarArgs = Record[NextIndex++];
- bool isGNUVarArgs = Record[NextIndex++];
- bool hasCommaPasting = Record[NextIndex++];
- MacroParams.clear();
- unsigned NumArgs = Record[NextIndex++];
- for (unsigned i = 0; i != NumArgs; ++i)
- MacroParams.push_back(getLocalIdentifier(F, Record[NextIndex++]));
- // Install function-like macro info.
- MI->setIsFunctionLike();
- if (isC99VarArgs) MI->setIsC99Varargs();
- if (isGNUVarArgs) MI->setIsGNUVarargs();
- if (hasCommaPasting) MI->setHasCommaPasting();
- MI->setParameterList(MacroParams, PP.getPreprocessorAllocator());
- }
- // Remember that we saw this macro last so that we add the tokens that
- // form its body to it.
- Macro = MI;
- if (NextIndex + 1 == Record.size() && PP.getPreprocessingRecord() &&
- Record[NextIndex]) {
- // We have a macro definition. Register the association
- PreprocessedEntityID
- GlobalID = getGlobalPreprocessedEntityID(F, Record[NextIndex]);
- PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
- PreprocessingRecord::PPEntityID PPID =
- PPRec.getPPEntityID(GlobalID - 1, /*isLoaded=*/true);
- MacroDefinitionRecord *PPDef = cast_or_null<MacroDefinitionRecord>(
- PPRec.getPreprocessedEntity(PPID));
- if (PPDef)
- PPRec.RegisterMacroDefinition(Macro, PPDef);
- }
- ++NumMacrosRead;
- break;
- }
- case PP_TOKEN: {
- // If we see a TOKEN before a PP_MACRO_*, then the file is
- // erroneous, just pretend we didn't see this.
- if (!Macro) break;
- unsigned Idx = 0;
- Token Tok = ReadToken(F, Record, Idx);
- Macro->AddTokenToBody(Tok);
- break;
- }
- }
- }
- }
- PreprocessedEntityID
- ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M,
- unsigned LocalID) const {
- if (!M.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(M);
- ContinuousRangeMap<uint32_t, int, 2>::const_iterator
- I = M.PreprocessedEntityRemap.find(LocalID - NUM_PREDEF_PP_ENTITY_IDS);
- assert(I != M.PreprocessedEntityRemap.end()
- && "Invalid index into preprocessed entity index remap");
- return LocalID + I->second;
- }
- unsigned HeaderFileInfoTrait::ComputeHash(internal_key_ref ikey) {
- return llvm::hash_combine(ikey.Size, ikey.ModTime);
- }
- HeaderFileInfoTrait::internal_key_type
- HeaderFileInfoTrait::GetInternalKey(const FileEntry *FE) {
- internal_key_type ikey = {FE->getSize(),
- M.HasTimestamps ? FE->getModificationTime() : 0,
- FE->getName(), /*Imported*/ false};
- return ikey;
- }
- bool HeaderFileInfoTrait::EqualKey(internal_key_ref a, internal_key_ref b) {
- if (a.Size != b.Size || (a.ModTime && b.ModTime && a.ModTime != b.ModTime))
- return false;
- if (llvm::sys::path::is_absolute(a.Filename) && a.Filename == b.Filename)
- return true;
- // Determine whether the actual files are equivalent.
- FileManager &FileMgr = Reader.getFileManager();
- auto GetFile = [&](const internal_key_type &Key) -> const FileEntry* {
- if (!Key.Imported) {
- if (auto File = FileMgr.getFile(Key.Filename))
- return *File;
- return nullptr;
- }
- std::string Resolved = Key.Filename;
- Reader.ResolveImportedPath(M, Resolved);
- if (auto File = FileMgr.getFile(Resolved))
- return *File;
- return nullptr;
- };
- const FileEntry *FEA = GetFile(a);
- const FileEntry *FEB = GetFile(b);
- return FEA && FEA == FEB;
- }
- std::pair<unsigned, unsigned>
- HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) {
- using namespace llvm::support;
- unsigned KeyLen = (unsigned) endian::readNext<uint16_t, little, unaligned>(d);
- unsigned DataLen = (unsigned) *d++;
- return std::make_pair(KeyLen, DataLen);
- }
- HeaderFileInfoTrait::internal_key_type
- HeaderFileInfoTrait::ReadKey(const unsigned char *d, unsigned) {
- using namespace llvm::support;
- internal_key_type ikey;
- ikey.Size = off_t(endian::readNext<uint64_t, little, unaligned>(d));
- ikey.ModTime = time_t(endian::readNext<uint64_t, little, unaligned>(d));
- ikey.Filename = (const char *)d;
- ikey.Imported = true;
- return ikey;
- }
- HeaderFileInfoTrait::data_type
- HeaderFileInfoTrait::ReadData(internal_key_ref key, const unsigned char *d,
- unsigned DataLen) {
- using namespace llvm::support;
- const unsigned char *End = d + DataLen;
- HeaderFileInfo HFI;
- unsigned Flags = *d++;
- // FIXME: Refactor with mergeHeaderFileInfo in HeaderSearch.cpp.
- HFI.isImport |= (Flags >> 5) & 0x01;
- HFI.isPragmaOnce |= (Flags >> 4) & 0x01;
- HFI.DirInfo = (Flags >> 1) & 0x07;
- HFI.IndexHeaderMapHeader = Flags & 0x01;
- // FIXME: Find a better way to handle this. Maybe just store a
- // "has been included" flag?
- HFI.NumIncludes = std::max(endian::readNext<uint16_t, little, unaligned>(d),
- HFI.NumIncludes);
- HFI.ControllingMacroID = Reader.getGlobalIdentifierID(
- M, endian::readNext<uint32_t, little, unaligned>(d));
- if (unsigned FrameworkOffset =
- endian::readNext<uint32_t, little, unaligned>(d)) {
- // The framework offset is 1 greater than the actual offset,
- // since 0 is used as an indicator for "no framework name".
- StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1);
- HFI.Framework = HS->getUniqueFrameworkName(FrameworkName);
- }
- assert((End - d) % 4 == 0 &&
- "Wrong data length in HeaderFileInfo deserialization");
- while (d != End) {
- uint32_t LocalSMID = endian::readNext<uint32_t, little, unaligned>(d);
- auto HeaderRole = static_cast<ModuleMap::ModuleHeaderRole>(LocalSMID & 3);
- LocalSMID >>= 2;
- // This header is part of a module. Associate it with the module to enable
- // implicit module import.
- SubmoduleID GlobalSMID = Reader.getGlobalSubmoduleID(M, LocalSMID);
- Module *Mod = Reader.getSubmodule(GlobalSMID);
- FileManager &FileMgr = Reader.getFileManager();
- ModuleMap &ModMap =
- Reader.getPreprocessor().getHeaderSearchInfo().getModuleMap();
- std::string Filename = key.Filename;
- if (key.Imported)
- Reader.ResolveImportedPath(M, Filename);
- // FIXME: This is not always the right filename-as-written, but we're not
- // going to use this information to rebuild the module, so it doesn't make
- // a lot of difference.
- Module::Header H = { key.Filename, *FileMgr.getFile(Filename) };
- ModMap.addHeader(Mod, H, HeaderRole, /*Imported*/true);
- HFI.isModuleHeader |= !(HeaderRole & ModuleMap::TextualHeader);
- }
- // This HeaderFileInfo was externally loaded.
- HFI.External = true;
- HFI.IsValid = true;
- return HFI;
- }
- void ASTReader::addPendingMacro(IdentifierInfo *II,
- ModuleFile *M,
- uint64_t MacroDirectivesOffset) {
- assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard");
- PendingMacroIDs[II].push_back(PendingMacroInfo(M, MacroDirectivesOffset));
- }
- void ASTReader::ReadDefinedMacros() {
- // Note that we are loading defined macros.
- Deserializing Macros(this);
- for (ModuleFile &I : llvm::reverse(ModuleMgr)) {
- BitstreamCursor &MacroCursor = I.MacroCursor;
- // If there was no preprocessor block, skip this file.
- if (MacroCursor.getBitcodeBytes().empty())
- continue;
- BitstreamCursor Cursor = MacroCursor;
- if (llvm::Error Err = Cursor.JumpToBit(I.MacroStartOffset)) {
- Error(std::move(Err));
- return;
- }
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeE = Cursor.advanceSkippingSubblocks();
- if (!MaybeE) {
- Error(MaybeE.takeError());
- return;
- }
- llvm::BitstreamEntry E = MaybeE.get();
- switch (E.Kind) {
- case llvm::BitstreamEntry::SubBlock: // Handled for us already.
- case llvm::BitstreamEntry::Error:
- Error("malformed block record in AST file");
- return;
- case llvm::BitstreamEntry::EndBlock:
- goto NextCursor;
- case llvm::BitstreamEntry::Record: {
- Record.clear();
- Expected<unsigned> MaybeRecord = Cursor.readRecord(E.ID, Record);
- if (!MaybeRecord) {
- Error(MaybeRecord.takeError());
- return;
- }
- switch (MaybeRecord.get()) {
- default: // Default behavior: ignore.
- break;
- case PP_MACRO_OBJECT_LIKE:
- case PP_MACRO_FUNCTION_LIKE: {
- IdentifierInfo *II = getLocalIdentifier(I, Record[0]);
- if (II->isOutOfDate())
- updateOutOfDateIdentifier(*II);
- break;
- }
- case PP_TOKEN:
- // Ignore tokens.
- break;
- }
- break;
- }
- }
- }
- NextCursor: ;
- }
- }
- namespace {
- /// Visitor class used to look up identifirs in an AST file.
- class IdentifierLookupVisitor {
- StringRef Name;
- unsigned NameHash;
- unsigned PriorGeneration;
- unsigned &NumIdentifierLookups;
- unsigned &NumIdentifierLookupHits;
- IdentifierInfo *Found = nullptr;
- public:
- IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration,
- unsigned &NumIdentifierLookups,
- unsigned &NumIdentifierLookupHits)
- : Name(Name), NameHash(ASTIdentifierLookupTrait::ComputeHash(Name)),
- PriorGeneration(PriorGeneration),
- NumIdentifierLookups(NumIdentifierLookups),
- NumIdentifierLookupHits(NumIdentifierLookupHits) {}
- bool operator()(ModuleFile &M) {
- // If we've already searched this module file, skip it now.
- if (M.Generation <= PriorGeneration)
- return true;
- ASTIdentifierLookupTable *IdTable
- = (ASTIdentifierLookupTable *)M.IdentifierLookupTable;
- if (!IdTable)
- return false;
- ASTIdentifierLookupTrait Trait(IdTable->getInfoObj().getReader(), M,
- Found);
- ++NumIdentifierLookups;
- ASTIdentifierLookupTable::iterator Pos =
- IdTable->find_hashed(Name, NameHash, &Trait);
- if (Pos == IdTable->end())
- return false;
- // Dereferencing the iterator has the effect of building the
- // IdentifierInfo node and populating it with the various
- // declarations it needs.
- ++NumIdentifierLookupHits;
- Found = *Pos;
- return true;
- }
- // Retrieve the identifier info found within the module
- // files.
- IdentifierInfo *getIdentifierInfo() const { return Found; }
- };
- } // namespace
- void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) {
- // Note that we are loading an identifier.
- Deserializing AnIdentifier(this);
- unsigned PriorGeneration = 0;
- if (getContext().getLangOpts().Modules)
- PriorGeneration = IdentifierGeneration[&II];
- // If there is a global index, look there first to determine which modules
- // provably do not have any results for this identifier.
- GlobalModuleIndex::HitSet Hits;
- GlobalModuleIndex::HitSet *HitsPtr = nullptr;
- if (!loadGlobalIndex()) {
- if (GlobalIndex->lookupIdentifier(II.getName(), Hits)) {
- HitsPtr = &Hits;
- }
- }
- IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration,
- NumIdentifierLookups,
- NumIdentifierLookupHits);
- ModuleMgr.visit(Visitor, HitsPtr);
- markIdentifierUpToDate(&II);
- }
- void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) {
- if (!II)
- return;
- II->setOutOfDate(false);
- // Update the generation for this identifier.
- if (getContext().getLangOpts().Modules)
- IdentifierGeneration[II] = getGeneration();
- }
- void ASTReader::resolvePendingMacro(IdentifierInfo *II,
- const PendingMacroInfo &PMInfo) {
- ModuleFile &M = *PMInfo.M;
- BitstreamCursor &Cursor = M.MacroCursor;
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(PMInfo.MacroDirectivesOffset)) {
- Error(std::move(Err));
- return;
- }
- struct ModuleMacroRecord {
- SubmoduleID SubModID;
- MacroInfo *MI;
- SmallVector<SubmoduleID, 8> Overrides;
- };
- llvm::SmallVector<ModuleMacroRecord, 8> ModuleMacros;
- // We expect to see a sequence of PP_MODULE_MACRO records listing exported
- // macros, followed by a PP_MACRO_DIRECTIVE_HISTORY record with the complete
- // macro histroy.
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry =
- Cursor.advance(BitstreamCursor::AF_DontPopBlockAtEnd);
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- if (Entry.Kind != llvm::BitstreamEntry::Record) {
- Error("malformed block record in AST file");
- return;
- }
- Record.clear();
- Expected<unsigned> MaybePP = Cursor.readRecord(Entry.ID, Record);
- if (!MaybePP) {
- Error(MaybePP.takeError());
- return;
- }
- switch ((PreprocessorRecordTypes)MaybePP.get()) {
- case PP_MACRO_DIRECTIVE_HISTORY:
- break;
- case PP_MODULE_MACRO: {
- ModuleMacros.push_back(ModuleMacroRecord());
- auto &Info = ModuleMacros.back();
- Info.SubModID = getGlobalSubmoduleID(M, Record[0]);
- Info.MI = getMacro(getGlobalMacroID(M, Record[1]));
- for (int I = 2, N = Record.size(); I != N; ++I)
- Info.Overrides.push_back(getGlobalSubmoduleID(M, Record[I]));
- continue;
- }
- default:
- Error("malformed block record in AST file");
- return;
- }
- // We found the macro directive history; that's the last record
- // for this macro.
- break;
- }
- // Module macros are listed in reverse dependency order.
- {
- std::reverse(ModuleMacros.begin(), ModuleMacros.end());
- llvm::SmallVector<ModuleMacro*, 8> Overrides;
- for (auto &MMR : ModuleMacros) {
- Overrides.clear();
- for (unsigned ModID : MMR.Overrides) {
- Module *Mod = getSubmodule(ModID);
- auto *Macro = PP.getModuleMacro(Mod, II);
- assert(Macro && "missing definition for overridden macro");
- Overrides.push_back(Macro);
- }
- bool Inserted = false;
- Module *Owner = getSubmodule(MMR.SubModID);
- PP.addModuleMacro(Owner, II, MMR.MI, Overrides, Inserted);
- }
- }
- // Don't read the directive history for a module; we don't have anywhere
- // to put it.
- if (M.isModule())
- return;
- // Deserialize the macro directives history in reverse source-order.
- MacroDirective *Latest = nullptr, *Earliest = nullptr;
- unsigned Idx = 0, N = Record.size();
- while (Idx < N) {
- MacroDirective *MD = nullptr;
- SourceLocation Loc = ReadSourceLocation(M, Record, Idx);
- MacroDirective::Kind K = (MacroDirective::Kind)Record[Idx++];
- switch (K) {
- case MacroDirective::MD_Define: {
- MacroInfo *MI = getMacro(getGlobalMacroID(M, Record[Idx++]));
- MD = PP.AllocateDefMacroDirective(MI, Loc);
- break;
- }
- case MacroDirective::MD_Undefine:
- MD = PP.AllocateUndefMacroDirective(Loc);
- break;
- case MacroDirective::MD_Visibility:
- bool isPublic = Record[Idx++];
- MD = PP.AllocateVisibilityMacroDirective(Loc, isPublic);
- break;
- }
- if (!Latest)
- Latest = MD;
- if (Earliest)
- Earliest->setPrevious(MD);
- Earliest = MD;
- }
- if (Latest)
- PP.setLoadedMacroDirective(II, Earliest, Latest);
- }
- ASTReader::InputFileInfo
- ASTReader::readInputFileInfo(ModuleFile &F, unsigned ID) {
- // Go find this input file.
- BitstreamCursor &Cursor = F.InputFilesCursor;
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(F.InputFileOffsets[ID - 1])) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- }
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeCode.takeError());
- }
- unsigned Code = MaybeCode.get();
- RecordData Record;
- StringRef Blob;
- if (Expected<unsigned> Maybe = Cursor.readRecord(Code, Record, &Blob))
- assert(static_cast<InputFileRecordTypes>(Maybe.get()) == INPUT_FILE &&
- "invalid record type for input file");
- else {
- // FIXME this drops errors on the floor.
- consumeError(Maybe.takeError());
- }
- assert(Record[0] == ID && "Bogus stored ID or offset");
- InputFileInfo R;
- R.StoredSize = static_cast<off_t>(Record[1]);
- R.StoredTime = static_cast<time_t>(Record[2]);
- R.Overridden = static_cast<bool>(Record[3]);
- R.Transient = static_cast<bool>(Record[4]);
- R.TopLevelModuleMap = static_cast<bool>(Record[5]);
- R.Filename = Blob;
- ResolveImportedPath(F, R.Filename);
- Expected<llvm::BitstreamEntry> MaybeEntry = Cursor.advance();
- if (!MaybeEntry) // FIXME this drops errors on the floor.
- consumeError(MaybeEntry.takeError());
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- assert(Entry.Kind == llvm::BitstreamEntry::Record &&
- "expected record type for input file hash");
- Record.clear();
- if (Expected<unsigned> Maybe = Cursor.readRecord(Entry.ID, Record))
- assert(static_cast<InputFileRecordTypes>(Maybe.get()) == INPUT_FILE_HASH &&
- "invalid record type for input file hash");
- else {
- // FIXME this drops errors on the floor.
- consumeError(Maybe.takeError());
- }
- R.ContentHash = (static_cast<uint64_t>(Record[1]) << 32) |
- static_cast<uint64_t>(Record[0]);
- return R;
- }
- static unsigned moduleKindForDiagnostic(ModuleKind Kind);
- InputFile ASTReader::getInputFile(ModuleFile &F, unsigned ID, bool Complain) {
- // If this ID is bogus, just return an empty input file.
- if (ID == 0 || ID > F.InputFilesLoaded.size())
- return InputFile();
- // If we've already loaded this input file, return it.
- if (F.InputFilesLoaded[ID-1].getFile())
- return F.InputFilesLoaded[ID-1];
- if (F.InputFilesLoaded[ID-1].isNotFound())
- return InputFile();
- // Go find this input file.
- BitstreamCursor &Cursor = F.InputFilesCursor;
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(F.InputFileOffsets[ID - 1])) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- }
- InputFileInfo FI = readInputFileInfo(F, ID);
- off_t StoredSize = FI.StoredSize;
- time_t StoredTime = FI.StoredTime;
- bool Overridden = FI.Overridden;
- bool Transient = FI.Transient;
- StringRef Filename = FI.Filename;
- uint64_t StoredContentHash = FI.ContentHash;
- const FileEntry *File = nullptr;
- if (auto FE = FileMgr.getFile(Filename, /*OpenFile=*/false))
- File = *FE;
- // If we didn't find the file, resolve it relative to the
- // original directory from which this AST file was created.
- if (File == nullptr && !F.OriginalDir.empty() && !F.BaseDirectory.empty() &&
- F.OriginalDir != F.BaseDirectory) {
- std::string Resolved = resolveFileRelativeToOriginalDir(
- Filename, F.OriginalDir, F.BaseDirectory);
- if (!Resolved.empty())
- if (auto FE = FileMgr.getFile(Resolved))
- File = *FE;
- }
- // For an overridden file, create a virtual file with the stored
- // size/timestamp.
- if ((Overridden || Transient) && File == nullptr)
- File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime);
- if (File == nullptr) {
- if (Complain) {
- std::string ErrorStr = "could not find file '";
- ErrorStr += Filename;
- ErrorStr += "' referenced by AST file '";
- ErrorStr += F.FileName;
- ErrorStr += "'";
- Error(ErrorStr);
- }
- // Record that we didn't find the file.
- F.InputFilesLoaded[ID-1] = InputFile::getNotFound();
- return InputFile();
- }
- // Check if there was a request to override the contents of the file
- // that was part of the precompiled header. Overriding such a file
- // can lead to problems when lexing using the source locations from the
- // PCH.
- SourceManager &SM = getSourceManager();
- // FIXME: Reject if the overrides are different.
- if ((!Overridden && !Transient) && SM.isFileOverridden(File)) {
- if (Complain)
- Error(diag::err_fe_pch_file_overridden, Filename);
- // After emitting the diagnostic, bypass the overriding file to recover
- // (this creates a separate FileEntry).
- File = SM.bypassFileContentsOverride(*File);
- if (!File) {
- F.InputFilesLoaded[ID - 1] = InputFile::getNotFound();
- return InputFile();
- }
- }
- enum ModificationType {
- Size,
- ModTime,
- Content,
- None,
- };
- auto HasInputFileChanged = [&]() {
- if (StoredSize != File->getSize())
- return ModificationType::Size;
- if (!DisableValidation && StoredTime &&
- StoredTime != File->getModificationTime()) {
- // In case the modification time changes but not the content,
- // accept the cached file as legit.
- if (ValidateASTInputFilesContent &&
- StoredContentHash != static_cast<uint64_t>(llvm::hash_code(-1))) {
- auto MemBuffOrError = FileMgr.getBufferForFile(File);
- if (!MemBuffOrError) {
- if (!Complain)
- return ModificationType::ModTime;
- std::string ErrorStr = "could not get buffer for file '";
- ErrorStr += File->getName();
- ErrorStr += "'";
- Error(ErrorStr);
- return ModificationType::ModTime;
- }
- auto ContentHash = hash_value(MemBuffOrError.get()->getBuffer());
- if (StoredContentHash == static_cast<uint64_t>(ContentHash))
- return ModificationType::None;
- return ModificationType::Content;
- }
- return ModificationType::ModTime;
- }
- return ModificationType::None;
- };
- bool IsOutOfDate = false;
- auto FileChange = HasInputFileChanged();
- // For an overridden file, there is nothing to validate.
- if (!Overridden && FileChange != ModificationType::None) {
- if (Complain) {
- // Build a list of the PCH imports that got us here (in reverse).
- SmallVector<ModuleFile *, 4> ImportStack(1, &F);
- while (!ImportStack.back()->ImportedBy.empty())
- ImportStack.push_back(ImportStack.back()->ImportedBy[0]);
- // The top-level PCH is stale.
- StringRef TopLevelPCHName(ImportStack.back()->FileName);
- unsigned DiagnosticKind =
- moduleKindForDiagnostic(ImportStack.back()->Kind);
- if (DiagnosticKind == 0)
- Error(diag::err_fe_pch_file_modified, Filename, TopLevelPCHName,
- (unsigned)FileChange);
- else if (DiagnosticKind == 1)
- Error(diag::err_fe_module_file_modified, Filename, TopLevelPCHName,
- (unsigned)FileChange);
- else
- Error(diag::err_fe_ast_file_modified, Filename, TopLevelPCHName,
- (unsigned)FileChange);
- // Print the import stack.
- if (ImportStack.size() > 1 && !Diags.isDiagnosticInFlight()) {
- Diag(diag::note_pch_required_by)
- << Filename << ImportStack[0]->FileName;
- for (unsigned I = 1; I < ImportStack.size(); ++I)
- Diag(diag::note_pch_required_by)
- << ImportStack[I-1]->FileName << ImportStack[I]->FileName;
- }
- if (!Diags.isDiagnosticInFlight())
- Diag(diag::note_pch_rebuild_required) << TopLevelPCHName;
- }
- IsOutOfDate = true;
- }
- // FIXME: If the file is overridden and we've already opened it,
- // issue an error (or split it into a separate FileEntry).
- InputFile IF = InputFile(File, Overridden || Transient, IsOutOfDate);
- // Note that we've loaded this input file.
- F.InputFilesLoaded[ID-1] = IF;
- return IF;
- }
- /// If we are loading a relocatable PCH or module file, and the filename
- /// is not an absolute path, add the system or module root to the beginning of
- /// the file name.
- void ASTReader::ResolveImportedPath(ModuleFile &M, std::string &Filename) {
- // Resolve relative to the base directory, if we have one.
- if (!M.BaseDirectory.empty())
- return ResolveImportedPath(Filename, M.BaseDirectory);
- }
- void ASTReader::ResolveImportedPath(std::string &Filename, StringRef Prefix) {
- if (Filename.empty() || llvm::sys::path::is_absolute(Filename))
- return;
- SmallString<128> Buffer;
- llvm::sys::path::append(Buffer, Prefix, Filename);
- Filename.assign(Buffer.begin(), Buffer.end());
- }
- static bool isDiagnosedResult(ASTReader::ASTReadResult ARR, unsigned Caps) {
- switch (ARR) {
- case ASTReader::Failure: return true;
- case ASTReader::Missing: return !(Caps & ASTReader::ARR_Missing);
- case ASTReader::OutOfDate: return !(Caps & ASTReader::ARR_OutOfDate);
- case ASTReader::VersionMismatch: return !(Caps & ASTReader::ARR_VersionMismatch);
- case ASTReader::ConfigurationMismatch:
- return !(Caps & ASTReader::ARR_ConfigurationMismatch);
- case ASTReader::HadErrors: return true;
- case ASTReader::Success: return false;
- }
- llvm_unreachable("unknown ASTReadResult");
- }
- ASTReader::ASTReadResult ASTReader::ReadOptionsBlock(
- BitstreamCursor &Stream, unsigned ClientLoadCapabilities,
- bool AllowCompatibleConfigurationMismatch, ASTReaderListener &Listener,
- std::string &SuggestedPredefines) {
- if (llvm::Error Err = Stream.EnterSubBlock(OPTIONS_BLOCK_ID)) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- return Failure;
- }
- // Read all of the records in the options block.
- RecordData Record;
- ASTReadResult Result = Success;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::Error:
- case llvm::BitstreamEntry::SubBlock:
- return Failure;
- case llvm::BitstreamEntry::EndBlock:
- return Result;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read and process a record.
- Record.clear();
- Expected<unsigned> MaybeRecordType = Stream.readRecord(Entry.ID, Record);
- if (!MaybeRecordType) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeRecordType.takeError());
- return Failure;
- }
- switch ((OptionsRecordTypes)MaybeRecordType.get()) {
- case LANGUAGE_OPTIONS: {
- bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
- if (ParseLanguageOptions(Record, Complain, Listener,
- AllowCompatibleConfigurationMismatch))
- Result = ConfigurationMismatch;
- break;
- }
- case TARGET_OPTIONS: {
- bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
- if (ParseTargetOptions(Record, Complain, Listener,
- AllowCompatibleConfigurationMismatch))
- Result = ConfigurationMismatch;
- break;
- }
- case FILE_SYSTEM_OPTIONS: {
- bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
- if (!AllowCompatibleConfigurationMismatch &&
- ParseFileSystemOptions(Record, Complain, Listener))
- Result = ConfigurationMismatch;
- break;
- }
- case HEADER_SEARCH_OPTIONS: {
- bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
- if (!AllowCompatibleConfigurationMismatch &&
- ParseHeaderSearchOptions(Record, Complain, Listener))
- Result = ConfigurationMismatch;
- break;
- }
- case PREPROCESSOR_OPTIONS:
- bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
- if (!AllowCompatibleConfigurationMismatch &&
- ParsePreprocessorOptions(Record, Complain, Listener,
- SuggestedPredefines))
- Result = ConfigurationMismatch;
- break;
- }
- }
- }
- ASTReader::ASTReadResult
- ASTReader::ReadControlBlock(ModuleFile &F,
- SmallVectorImpl<ImportedModule> &Loaded,
- const ModuleFile *ImportedBy,
- unsigned ClientLoadCapabilities) {
- BitstreamCursor &Stream = F.Stream;
- ASTReadResult Result = Success;
- if (llvm::Error Err = Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
- Error(std::move(Err));
- return Failure;
- }
- // Lambda to read the unhashed control block the first time it's called.
- //
- // For PCM files, the unhashed control block cannot be read until after the
- // MODULE_NAME record. However, PCH files have no MODULE_NAME, and yet still
- // need to look ahead before reading the IMPORTS record. For consistency,
- // this block is always read somehow (see BitstreamEntry::EndBlock).
- bool HasReadUnhashedControlBlock = false;
- auto readUnhashedControlBlockOnce = [&]() {
- if (!HasReadUnhashedControlBlock) {
- HasReadUnhashedControlBlock = true;
- if (ASTReadResult Result =
- readUnhashedControlBlock(F, ImportedBy, ClientLoadCapabilities))
- return Result;
- }
- return Success;
- };
- // Read all of the records and blocks in the control block.
- RecordData Record;
- unsigned NumInputs = 0;
- unsigned NumUserInputs = 0;
- StringRef BaseDirectoryAsWritten;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::Error:
- Error("malformed block record in AST file");
- return Failure;
- case llvm::BitstreamEntry::EndBlock: {
- // Validate the module before returning. This call catches an AST with
- // no module name and no imports.
- if (ASTReadResult Result = readUnhashedControlBlockOnce())
- return Result;
- // Validate input files.
- const HeaderSearchOptions &HSOpts =
- PP.getHeaderSearchInfo().getHeaderSearchOpts();
- // All user input files reside at the index range [0, NumUserInputs), and
- // system input files reside at [NumUserInputs, NumInputs). For explicitly
- // loaded module files, ignore missing inputs.
- if (!DisableValidation && F.Kind != MK_ExplicitModule &&
- F.Kind != MK_PrebuiltModule) {
- bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0;
- // If we are reading a module, we will create a verification timestamp,
- // so we verify all input files. Otherwise, verify only user input
- // files.
- unsigned N = NumUserInputs;
- if (ValidateSystemInputs ||
- (HSOpts.ModulesValidateOncePerBuildSession &&
- F.InputFilesValidationTimestamp <= HSOpts.BuildSessionTimestamp &&
- F.Kind == MK_ImplicitModule))
- N = NumInputs;
- for (unsigned I = 0; I < N; ++I) {
- InputFile IF = getInputFile(F, I+1, Complain);
- if (!IF.getFile() || IF.isOutOfDate())
- return OutOfDate;
- }
- }
- if (Listener)
- Listener->visitModuleFile(F.FileName, F.Kind);
- if (Listener && Listener->needsInputFileVisitation()) {
- unsigned N = Listener->needsSystemInputFileVisitation() ? NumInputs
- : NumUserInputs;
- for (unsigned I = 0; I < N; ++I) {
- bool IsSystem = I >= NumUserInputs;
- InputFileInfo FI = readInputFileInfo(F, I+1);
- Listener->visitInputFile(FI.Filename, IsSystem, FI.Overridden,
- F.Kind == MK_ExplicitModule ||
- F.Kind == MK_PrebuiltModule);
- }
- }
- return Result;
- }
- case llvm::BitstreamEntry::SubBlock:
- switch (Entry.ID) {
- case INPUT_FILES_BLOCK_ID:
- F.InputFilesCursor = Stream;
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- if (ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) {
- Error("malformed block record in AST file");
- return Failure;
- }
- continue;
- case OPTIONS_BLOCK_ID:
- // If we're reading the first module for this group, check its options
- // are compatible with ours. For modules it imports, no further checking
- // is required, because we checked them when we built it.
- if (Listener && !ImportedBy) {
- // Should we allow the configuration of the module file to differ from
- // the configuration of the current translation unit in a compatible
- // way?
- //
- // FIXME: Allow this for files explicitly specified with -include-pch.
- bool AllowCompatibleConfigurationMismatch =
- F.Kind == MK_ExplicitModule || F.Kind == MK_PrebuiltModule;
- Result = ReadOptionsBlock(Stream, ClientLoadCapabilities,
- AllowCompatibleConfigurationMismatch,
- *Listener, SuggestedPredefines);
- if (Result == Failure) {
- Error("malformed block record in AST file");
- return Result;
- }
- if (DisableValidation ||
- (AllowConfigurationMismatch && Result == ConfigurationMismatch))
- Result = Success;
- // If we can't load the module, exit early since we likely
- // will rebuild the module anyway. The stream may be in the
- // middle of a block.
- if (Result != Success)
- return Result;
- } else if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- continue;
- default:
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- continue;
- }
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read and process a record.
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecordType =
- Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecordType) {
- Error(MaybeRecordType.takeError());
- return Failure;
- }
- switch ((ControlRecordTypes)MaybeRecordType.get()) {
- case METADATA: {
- if (Record[0] != VERSION_MAJOR && !DisableValidation) {
- if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
- Diag(Record[0] < VERSION_MAJOR? diag::err_pch_version_too_old
- : diag::err_pch_version_too_new);
- return VersionMismatch;
- }
- bool hasErrors = Record[7];
- if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) {
- Diag(diag::err_pch_with_compiler_errors);
- return HadErrors;
- }
- if (hasErrors) {
- Diags.ErrorOccurred = true;
- Diags.UncompilableErrorOccurred = true;
- Diags.UnrecoverableErrorOccurred = true;
- }
- F.RelocatablePCH = Record[4];
- // Relative paths in a relocatable PCH are relative to our sysroot.
- if (F.RelocatablePCH)
- F.BaseDirectory = isysroot.empty() ? "/" : isysroot;
- F.HasTimestamps = Record[5];
- F.PCHHasObjectFile = Record[6];
- const std::string &CurBranch = getClangFullRepositoryVersion();
- StringRef ASTBranch = Blob;
- if (StringRef(CurBranch) != ASTBranch && !DisableValidation) {
- if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
- Diag(diag::err_pch_different_branch) << ASTBranch << CurBranch;
- return VersionMismatch;
- }
- break;
- }
- case IMPORTS: {
- // Validate the AST before processing any imports (otherwise, untangling
- // them can be error-prone and expensive). A module will have a name and
- // will already have been validated, but this catches the PCH case.
- if (ASTReadResult Result = readUnhashedControlBlockOnce())
- return Result;
- // Load each of the imported PCH files.
- unsigned Idx = 0, N = Record.size();
- while (Idx < N) {
- // Read information about the AST file.
- ModuleKind ImportedKind = (ModuleKind)Record[Idx++];
- // The import location will be the local one for now; we will adjust
- // all import locations of module imports after the global source
- // location info are setup, in ReadAST.
- SourceLocation ImportLoc =
- ReadUntranslatedSourceLocation(Record[Idx++]);
- off_t StoredSize = (off_t)Record[Idx++];
- time_t StoredModTime = (time_t)Record[Idx++];
- ASTFileSignature StoredSignature = {
- {{(uint32_t)Record[Idx++], (uint32_t)Record[Idx++],
- (uint32_t)Record[Idx++], (uint32_t)Record[Idx++],
- (uint32_t)Record[Idx++]}}};
- std::string ImportedName = ReadString(Record, Idx);
- std::string ImportedFile;
- // For prebuilt and explicit modules first consult the file map for
- // an override. Note that here we don't search prebuilt module
- // directories, only the explicit name to file mappings. Also, we will
- // still verify the size/signature making sure it is essentially the
- // same file but perhaps in a different location.
- if (ImportedKind == MK_PrebuiltModule || ImportedKind == MK_ExplicitModule)
- ImportedFile = PP.getHeaderSearchInfo().getPrebuiltModuleFileName(
- ImportedName, /*FileMapOnly*/ true);
- if (ImportedFile.empty())
- // Use BaseDirectoryAsWritten to ensure we use the same path in the
- // ModuleCache as when writing.
- ImportedFile = ReadPath(BaseDirectoryAsWritten, Record, Idx);
- else
- SkipPath(Record, Idx);
- // If our client can't cope with us being out of date, we can't cope with
- // our dependency being missing.
- unsigned Capabilities = ClientLoadCapabilities;
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Capabilities &= ~ARR_Missing;
- // Load the AST file.
- auto Result = ReadASTCore(ImportedFile, ImportedKind, ImportLoc, &F,
- Loaded, StoredSize, StoredModTime,
- StoredSignature, Capabilities);
- // If we diagnosed a problem, produce a backtrace.
- if (isDiagnosedResult(Result, Capabilities))
- Diag(diag::note_module_file_imported_by)
- << F.FileName << !F.ModuleName.empty() << F.ModuleName;
- switch (Result) {
- case Failure: return Failure;
- // If we have to ignore the dependency, we'll have to ignore this too.
- case Missing:
- case OutOfDate: return OutOfDate;
- case VersionMismatch: return VersionMismatch;
- case ConfigurationMismatch: return ConfigurationMismatch;
- case HadErrors: return HadErrors;
- case Success: break;
- }
- }
- break;
- }
- case ORIGINAL_FILE:
- F.OriginalSourceFileID = FileID::get(Record[0]);
- F.ActualOriginalSourceFileName = Blob;
- F.OriginalSourceFileName = F.ActualOriginalSourceFileName;
- ResolveImportedPath(F, F.OriginalSourceFileName);
- break;
- case ORIGINAL_FILE_ID:
- F.OriginalSourceFileID = FileID::get(Record[0]);
- break;
- case ORIGINAL_PCH_DIR:
- F.OriginalDir = Blob;
- break;
- case MODULE_NAME:
- F.ModuleName = Blob;
- Diag(diag::remark_module_import)
- << F.ModuleName << F.FileName << (ImportedBy ? true : false)
- << (ImportedBy ? StringRef(ImportedBy->ModuleName) : StringRef());
- if (Listener)
- Listener->ReadModuleName(F.ModuleName);
- // Validate the AST as soon as we have a name so we can exit early on
- // failure.
- if (ASTReadResult Result = readUnhashedControlBlockOnce())
- return Result;
- break;
- case MODULE_DIRECTORY: {
- // Save the BaseDirectory as written in the PCM for computing the module
- // filename for the ModuleCache.
- BaseDirectoryAsWritten = Blob;
- assert(!F.ModuleName.empty() &&
- "MODULE_DIRECTORY found before MODULE_NAME");
- // If we've already loaded a module map file covering this module, we may
- // have a better path for it (relative to the current build).
- Module *M = PP.getHeaderSearchInfo().lookupModule(
- F.ModuleName, /*AllowSearch*/ true,
- /*AllowExtraModuleMapSearch*/ true);
- if (M && M->Directory) {
- // If we're implicitly loading a module, the base directory can't
- // change between the build and use.
- // Don't emit module relocation error if we have -fno-validate-pch
- if (!PP.getPreprocessorOpts().DisablePCHValidation &&
- F.Kind != MK_ExplicitModule && F.Kind != MK_PrebuiltModule) {
- auto BuildDir = PP.getFileManager().getDirectory(Blob);
- if (!BuildDir || *BuildDir != M->Directory) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Diag(diag::err_imported_module_relocated)
- << F.ModuleName << Blob << M->Directory->getName();
- return OutOfDate;
- }
- }
- F.BaseDirectory = M->Directory->getName();
- } else {
- F.BaseDirectory = Blob;
- }
- break;
- }
- case MODULE_MAP_FILE:
- if (ASTReadResult Result =
- ReadModuleMapFileBlock(Record, F, ImportedBy, ClientLoadCapabilities))
- return Result;
- break;
- case INPUT_FILE_OFFSETS:
- NumInputs = Record[0];
- NumUserInputs = Record[1];
- F.InputFileOffsets =
- (const llvm::support::unaligned_uint64_t *)Blob.data();
- F.InputFilesLoaded.resize(NumInputs);
- F.NumUserInputFiles = NumUserInputs;
- break;
- }
- }
- }
- ASTReader::ASTReadResult
- ASTReader::ReadASTBlock(ModuleFile &F, unsigned ClientLoadCapabilities) {
- BitstreamCursor &Stream = F.Stream;
- if (llvm::Error Err = Stream.EnterSubBlock(AST_BLOCK_ID)) {
- Error(std::move(Err));
- return Failure;
- }
- // Read all of the records and blocks for the AST file.
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::Error:
- Error("error at end of module block in AST file");
- return Failure;
- case llvm::BitstreamEntry::EndBlock:
- // Outside of C++, we do not store a lookup map for the translation unit.
- // Instead, mark it as needing a lookup map to be built if this module
- // contains any declarations lexically within it (which it always does!).
- // This usually has no cost, since we very rarely need the lookup map for
- // the translation unit outside C++.
- if (ASTContext *Ctx = ContextObj) {
- DeclContext *DC = Ctx->getTranslationUnitDecl();
- if (DC->hasExternalLexicalStorage() && !Ctx->getLangOpts().CPlusPlus)
- DC->setMustBuildLookupTable();
- }
- return Success;
- case llvm::BitstreamEntry::SubBlock:
- switch (Entry.ID) {
- case DECLTYPES_BLOCK_ID:
- // We lazily load the decls block, but we want to set up the
- // DeclsCursor cursor to point into it. Clone our current bitcode
- // cursor to it, enter the block and read the abbrevs in that block.
- // With the main cursor, we just skip over it.
- F.DeclsCursor = Stream;
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- if (ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) {
- Error("malformed block record in AST file");
- return Failure;
- }
- break;
- case PREPROCESSOR_BLOCK_ID:
- F.MacroCursor = Stream;
- if (!PP.getExternalSource())
- PP.setExternalSource(this);
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- if (ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) {
- Error("malformed block record in AST file");
- return Failure;
- }
- F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo();
- break;
- case PREPROCESSOR_DETAIL_BLOCK_ID:
- F.PreprocessorDetailCursor = Stream;
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- if (ReadBlockAbbrevs(F.PreprocessorDetailCursor,
- PREPROCESSOR_DETAIL_BLOCK_ID)) {
- Error("malformed preprocessor detail record in AST file");
- return Failure;
- }
- F.PreprocessorDetailStartOffset
- = F.PreprocessorDetailCursor.GetCurrentBitNo();
- if (!PP.getPreprocessingRecord())
- PP.createPreprocessingRecord();
- if (!PP.getPreprocessingRecord()->getExternalSource())
- PP.getPreprocessingRecord()->SetExternalSource(*this);
- break;
- case SOURCE_MANAGER_BLOCK_ID:
- if (ReadSourceManagerBlock(F))
- return Failure;
- break;
- case SUBMODULE_BLOCK_ID:
- if (ASTReadResult Result =
- ReadSubmoduleBlock(F, ClientLoadCapabilities))
- return Result;
- break;
- case COMMENTS_BLOCK_ID: {
- BitstreamCursor C = Stream;
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- if (ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) {
- Error("malformed comments block in AST file");
- return Failure;
- }
- CommentsCursors.push_back(std::make_pair(C, &F));
- break;
- }
- default:
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- break;
- }
- continue;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read and process a record.
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecordType =
- Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecordType) {
- Error(MaybeRecordType.takeError());
- return Failure;
- }
- ASTRecordTypes RecordType = (ASTRecordTypes)MaybeRecordType.get();
- // If we're not loading an AST context, we don't care about most records.
- if (!ContextObj) {
- switch (RecordType) {
- case IDENTIFIER_TABLE:
- case IDENTIFIER_OFFSET:
- case INTERESTING_IDENTIFIERS:
- case STATISTICS:
- case PP_CONDITIONAL_STACK:
- case PP_COUNTER_VALUE:
- case SOURCE_LOCATION_OFFSETS:
- case MODULE_OFFSET_MAP:
- case SOURCE_MANAGER_LINE_TABLE:
- case SOURCE_LOCATION_PRELOADS:
- case PPD_ENTITIES_OFFSETS:
- case HEADER_SEARCH_TABLE:
- case IMPORTED_MODULES:
- case MACRO_OFFSET:
- break;
- default:
- continue;
- }
- }
- switch (RecordType) {
- default: // Default behavior: ignore.
- break;
- case TYPE_OFFSET: {
- if (F.LocalNumTypes != 0) {
- Error("duplicate TYPE_OFFSET record in AST file");
- return Failure;
- }
- F.TypeOffsets = (const uint32_t *)Blob.data();
- F.LocalNumTypes = Record[0];
- unsigned LocalBaseTypeIndex = Record[1];
- F.BaseTypeIndex = getTotalNumTypes();
- if (F.LocalNumTypes > 0) {
- // Introduce the global -> local mapping for types within this module.
- GlobalTypeMap.insert(std::make_pair(getTotalNumTypes(), &F));
- // Introduce the local -> global mapping for types within this module.
- F.TypeRemap.insertOrReplace(
- std::make_pair(LocalBaseTypeIndex,
- F.BaseTypeIndex - LocalBaseTypeIndex));
- TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes);
- }
- break;
- }
- case DECL_OFFSET: {
- if (F.LocalNumDecls != 0) {
- Error("duplicate DECL_OFFSET record in AST file");
- return Failure;
- }
- F.DeclOffsets = (const DeclOffset *)Blob.data();
- F.LocalNumDecls = Record[0];
- unsigned LocalBaseDeclID = Record[1];
- F.BaseDeclID = getTotalNumDecls();
- if (F.LocalNumDecls > 0) {
- // Introduce the global -> local mapping for declarations within this
- // module.
- GlobalDeclMap.insert(
- std::make_pair(getTotalNumDecls() + NUM_PREDEF_DECL_IDS, &F));
- // Introduce the local -> global mapping for declarations within this
- // module.
- F.DeclRemap.insertOrReplace(
- std::make_pair(LocalBaseDeclID, F.BaseDeclID - LocalBaseDeclID));
- // Introduce the global -> local mapping for declarations within this
- // module.
- F.GlobalToLocalDeclIDs[&F] = LocalBaseDeclID;
- DeclsLoaded.resize(DeclsLoaded.size() + F.LocalNumDecls);
- }
- break;
- }
- case TU_UPDATE_LEXICAL: {
- DeclContext *TU = ContextObj->getTranslationUnitDecl();
- LexicalContents Contents(
- reinterpret_cast<const llvm::support::unaligned_uint32_t *>(
- Blob.data()),
- static_cast<unsigned int>(Blob.size() / 4));
- TULexicalDecls.push_back(std::make_pair(&F, Contents));
- TU->setHasExternalLexicalStorage(true);
- break;
- }
- case UPDATE_VISIBLE: {
- unsigned Idx = 0;
- serialization::DeclID ID = ReadDeclID(F, Record, Idx);
- auto *Data = (const unsigned char*)Blob.data();
- PendingVisibleUpdates[ID].push_back(PendingVisibleUpdate{&F, Data});
- // If we've already loaded the decl, perform the updates when we finish
- // loading this block.
- if (Decl *D = GetExistingDecl(ID))
- PendingUpdateRecords.push_back(
- PendingUpdateRecord(ID, D, /*JustLoaded=*/false));
- break;
- }
- case IDENTIFIER_TABLE:
- F.IdentifierTableData = Blob.data();
- if (Record[0]) {
- F.IdentifierLookupTable = ASTIdentifierLookupTable::Create(
- (const unsigned char *)F.IdentifierTableData + Record[0],
- (const unsigned char *)F.IdentifierTableData + sizeof(uint32_t),
- (const unsigned char *)F.IdentifierTableData,
- ASTIdentifierLookupTrait(*this, F));
- PP.getIdentifierTable().setExternalIdentifierLookup(this);
- }
- break;
- case IDENTIFIER_OFFSET: {
- if (F.LocalNumIdentifiers != 0) {
- Error("duplicate IDENTIFIER_OFFSET record in AST file");
- return Failure;
- }
- F.IdentifierOffsets = (const uint32_t *)Blob.data();
- F.LocalNumIdentifiers = Record[0];
- unsigned LocalBaseIdentifierID = Record[1];
- F.BaseIdentifierID = getTotalNumIdentifiers();
- if (F.LocalNumIdentifiers > 0) {
- // Introduce the global -> local mapping for identifiers within this
- // module.
- GlobalIdentifierMap.insert(std::make_pair(getTotalNumIdentifiers() + 1,
- &F));
- // Introduce the local -> global mapping for identifiers within this
- // module.
- F.IdentifierRemap.insertOrReplace(
- std::make_pair(LocalBaseIdentifierID,
- F.BaseIdentifierID - LocalBaseIdentifierID));
- IdentifiersLoaded.resize(IdentifiersLoaded.size()
- + F.LocalNumIdentifiers);
- }
- break;
- }
- case INTERESTING_IDENTIFIERS:
- F.PreloadIdentifierOffsets.assign(Record.begin(), Record.end());
- break;
- case EAGERLY_DESERIALIZED_DECLS:
- // FIXME: Skip reading this record if our ASTConsumer doesn't care
- // about "interesting" decls (for instance, if we're building a module).
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- EagerlyDeserializedDecls.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case MODULAR_CODEGEN_DECLS:
- // FIXME: Skip reading this record if our ASTConsumer doesn't care about
- // them (ie: if we're not codegenerating this module).
- if (F.Kind == MK_MainFile)
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- EagerlyDeserializedDecls.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case SPECIAL_TYPES:
- if (SpecialTypes.empty()) {
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- SpecialTypes.push_back(getGlobalTypeID(F, Record[I]));
- break;
- }
- if (SpecialTypes.size() != Record.size()) {
- Error("invalid special-types record");
- return Failure;
- }
- for (unsigned I = 0, N = Record.size(); I != N; ++I) {
- serialization::TypeID ID = getGlobalTypeID(F, Record[I]);
- if (!SpecialTypes[I])
- SpecialTypes[I] = ID;
- // FIXME: If ID && SpecialTypes[I] != ID, do we need a separate
- // merge step?
- }
- break;
- case STATISTICS:
- TotalNumStatements += Record[0];
- TotalNumMacros += Record[1];
- TotalLexicalDeclContexts += Record[2];
- TotalVisibleDeclContexts += Record[3];
- break;
- case UNUSED_FILESCOPED_DECLS:
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- UnusedFileScopedDecls.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case DELEGATING_CTORS:
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- DelegatingCtorDecls.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case WEAK_UNDECLARED_IDENTIFIERS:
- if (Record.size() % 4 != 0) {
- Error("invalid weak identifiers record");
- return Failure;
- }
- // FIXME: Ignore weak undeclared identifiers from non-original PCH
- // files. This isn't the way to do it :)
- WeakUndeclaredIdentifiers.clear();
- // Translate the weak, undeclared identifiers into global IDs.
- for (unsigned I = 0, N = Record.size(); I < N; /* in loop */) {
- WeakUndeclaredIdentifiers.push_back(
- getGlobalIdentifierID(F, Record[I++]));
- WeakUndeclaredIdentifiers.push_back(
- getGlobalIdentifierID(F, Record[I++]));
- WeakUndeclaredIdentifiers.push_back(
- ReadSourceLocation(F, Record, I).getRawEncoding());
- WeakUndeclaredIdentifiers.push_back(Record[I++]);
- }
- break;
- case SELECTOR_OFFSETS: {
- F.SelectorOffsets = (const uint32_t *)Blob.data();
- F.LocalNumSelectors = Record[0];
- unsigned LocalBaseSelectorID = Record[1];
- F.BaseSelectorID = getTotalNumSelectors();
- if (F.LocalNumSelectors > 0) {
- // Introduce the global -> local mapping for selectors within this
- // module.
- GlobalSelectorMap.insert(std::make_pair(getTotalNumSelectors()+1, &F));
- // Introduce the local -> global mapping for selectors within this
- // module.
- F.SelectorRemap.insertOrReplace(
- std::make_pair(LocalBaseSelectorID,
- F.BaseSelectorID - LocalBaseSelectorID));
- SelectorsLoaded.resize(SelectorsLoaded.size() + F.LocalNumSelectors);
- }
- break;
- }
- case METHOD_POOL:
- F.SelectorLookupTableData = (const unsigned char *)Blob.data();
- if (Record[0])
- F.SelectorLookupTable
- = ASTSelectorLookupTable::Create(
- F.SelectorLookupTableData + Record[0],
- F.SelectorLookupTableData,
- ASTSelectorLookupTrait(*this, F));
- TotalNumMethodPoolEntries += Record[1];
- break;
- case REFERENCED_SELECTOR_POOL:
- if (!Record.empty()) {
- for (unsigned Idx = 0, N = Record.size() - 1; Idx < N; /* in loop */) {
- ReferencedSelectorsData.push_back(getGlobalSelectorID(F,
- Record[Idx++]));
- ReferencedSelectorsData.push_back(ReadSourceLocation(F, Record, Idx).
- getRawEncoding());
- }
- }
- break;
- case PP_CONDITIONAL_STACK:
- if (!Record.empty()) {
- unsigned Idx = 0, End = Record.size() - 1;
- bool ReachedEOFWhileSkipping = Record[Idx++];
- llvm::Optional<Preprocessor::PreambleSkipInfo> SkipInfo;
- if (ReachedEOFWhileSkipping) {
- SourceLocation HashToken = ReadSourceLocation(F, Record, Idx);
- SourceLocation IfTokenLoc = ReadSourceLocation(F, Record, Idx);
- bool FoundNonSkipPortion = Record[Idx++];
- bool FoundElse = Record[Idx++];
- SourceLocation ElseLoc = ReadSourceLocation(F, Record, Idx);
- SkipInfo.emplace(HashToken, IfTokenLoc, FoundNonSkipPortion,
- FoundElse, ElseLoc);
- }
- SmallVector<PPConditionalInfo, 4> ConditionalStack;
- while (Idx < End) {
- auto Loc = ReadSourceLocation(F, Record, Idx);
- bool WasSkipping = Record[Idx++];
- bool FoundNonSkip = Record[Idx++];
- bool FoundElse = Record[Idx++];
- ConditionalStack.push_back(
- {Loc, WasSkipping, FoundNonSkip, FoundElse});
- }
- PP.setReplayablePreambleConditionalStack(ConditionalStack, SkipInfo);
- }
- break;
- case PP_COUNTER_VALUE:
- if (!Record.empty() && Listener)
- Listener->ReadCounter(F, Record[0]);
- break;
- case FILE_SORTED_DECLS:
- F.FileSortedDecls = (const DeclID *)Blob.data();
- F.NumFileSortedDecls = Record[0];
- break;
- case SOURCE_LOCATION_OFFSETS: {
- F.SLocEntryOffsets = (const uint32_t *)Blob.data();
- F.LocalNumSLocEntries = Record[0];
- unsigned SLocSpaceSize = Record[1];
- std::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) =
- SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries,
- SLocSpaceSize);
- if (!F.SLocEntryBaseID) {
- Error("ran out of source locations");
- break;
- }
- // Make our entry in the range map. BaseID is negative and growing, so
- // we invert it. Because we invert it, though, we need the other end of
- // the range.
- unsigned RangeStart =
- unsigned(-F.SLocEntryBaseID) - F.LocalNumSLocEntries + 1;
- GlobalSLocEntryMap.insert(std::make_pair(RangeStart, &F));
- F.FirstLoc = SourceLocation::getFromRawEncoding(F.SLocEntryBaseOffset);
- // SLocEntryBaseOffset is lower than MaxLoadedOffset and decreasing.
- assert((F.SLocEntryBaseOffset & (1U << 31U)) == 0);
- GlobalSLocOffsetMap.insert(
- std::make_pair(SourceManager::MaxLoadedOffset - F.SLocEntryBaseOffset
- - SLocSpaceSize,&F));
- // Initialize the remapping table.
- // Invalid stays invalid.
- F.SLocRemap.insertOrReplace(std::make_pair(0U, 0));
- // This module. Base was 2 when being compiled.
- F.SLocRemap.insertOrReplace(std::make_pair(2U,
- static_cast<int>(F.SLocEntryBaseOffset - 2)));
- TotalNumSLocEntries += F.LocalNumSLocEntries;
- break;
- }
- case MODULE_OFFSET_MAP:
- F.ModuleOffsetMap = Blob;
- break;
- case SOURCE_MANAGER_LINE_TABLE:
- if (ParseLineTable(F, Record))
- return Failure;
- break;
- case SOURCE_LOCATION_PRELOADS: {
- // Need to transform from the local view (1-based IDs) to the global view,
- // which is based off F.SLocEntryBaseID.
- if (!F.PreloadSLocEntries.empty()) {
- Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file");
- return Failure;
- }
- F.PreloadSLocEntries.swap(Record);
- break;
- }
- case EXT_VECTOR_DECLS:
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case VTABLE_USES:
- if (Record.size() % 3 != 0) {
- Error("Invalid VTABLE_USES record");
- return Failure;
- }
- // Later tables overwrite earlier ones.
- // FIXME: Modules will have some trouble with this. This is clearly not
- // the right way to do this.
- VTableUses.clear();
- for (unsigned Idx = 0, N = Record.size(); Idx != N; /* In loop */) {
- VTableUses.push_back(getGlobalDeclID(F, Record[Idx++]));
- VTableUses.push_back(
- ReadSourceLocation(F, Record, Idx).getRawEncoding());
- VTableUses.push_back(Record[Idx++]);
- }
- break;
- case PENDING_IMPLICIT_INSTANTIATIONS:
- if (PendingInstantiations.size() % 2 != 0) {
- Error("Invalid existing PendingInstantiations");
- return Failure;
- }
- if (Record.size() % 2 != 0) {
- Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block");
- return Failure;
- }
- for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
- PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++]));
- PendingInstantiations.push_back(
- ReadSourceLocation(F, Record, I).getRawEncoding());
- }
- break;
- case SEMA_DECL_REFS:
- if (Record.size() != 3) {
- Error("Invalid SEMA_DECL_REFS block");
- return Failure;
- }
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case PPD_ENTITIES_OFFSETS: {
- F.PreprocessedEntityOffsets = (const PPEntityOffset *)Blob.data();
- assert(Blob.size() % sizeof(PPEntityOffset) == 0);
- F.NumPreprocessedEntities = Blob.size() / sizeof(PPEntityOffset);
- unsigned LocalBasePreprocessedEntityID = Record[0];
- unsigned StartingID;
- if (!PP.getPreprocessingRecord())
- PP.createPreprocessingRecord();
- if (!PP.getPreprocessingRecord()->getExternalSource())
- PP.getPreprocessingRecord()->SetExternalSource(*this);
- StartingID
- = PP.getPreprocessingRecord()
- ->allocateLoadedEntities(F.NumPreprocessedEntities);
- F.BasePreprocessedEntityID = StartingID;
- if (F.NumPreprocessedEntities > 0) {
- // Introduce the global -> local mapping for preprocessed entities in
- // this module.
- GlobalPreprocessedEntityMap.insert(std::make_pair(StartingID, &F));
- // Introduce the local -> global mapping for preprocessed entities in
- // this module.
- F.PreprocessedEntityRemap.insertOrReplace(
- std::make_pair(LocalBasePreprocessedEntityID,
- F.BasePreprocessedEntityID - LocalBasePreprocessedEntityID));
- }
- break;
- }
- case PPD_SKIPPED_RANGES: {
- F.PreprocessedSkippedRangeOffsets = (const PPSkippedRange*)Blob.data();
- assert(Blob.size() % sizeof(PPSkippedRange) == 0);
- F.NumPreprocessedSkippedRanges = Blob.size() / sizeof(PPSkippedRange);
- if (!PP.getPreprocessingRecord())
- PP.createPreprocessingRecord();
- if (!PP.getPreprocessingRecord()->getExternalSource())
- PP.getPreprocessingRecord()->SetExternalSource(*this);
- F.BasePreprocessedSkippedRangeID = PP.getPreprocessingRecord()
- ->allocateSkippedRanges(F.NumPreprocessedSkippedRanges);
- if (F.NumPreprocessedSkippedRanges > 0)
- GlobalSkippedRangeMap.insert(
- std::make_pair(F.BasePreprocessedSkippedRangeID, &F));
- break;
- }
- case DECL_UPDATE_OFFSETS:
- if (Record.size() % 2 != 0) {
- Error("invalid DECL_UPDATE_OFFSETS block in AST file");
- return Failure;
- }
- for (unsigned I = 0, N = Record.size(); I != N; I += 2) {
- GlobalDeclID ID = getGlobalDeclID(F, Record[I]);
- DeclUpdateOffsets[ID].push_back(std::make_pair(&F, Record[I + 1]));
- // If we've already loaded the decl, perform the updates when we finish
- // loading this block.
- if (Decl *D = GetExistingDecl(ID))
- PendingUpdateRecords.push_back(
- PendingUpdateRecord(ID, D, /*JustLoaded=*/false));
- }
- break;
- case OBJC_CATEGORIES_MAP:
- if (F.LocalNumObjCCategoriesInMap != 0) {
- Error("duplicate OBJC_CATEGORIES_MAP record in AST file");
- return Failure;
- }
- F.LocalNumObjCCategoriesInMap = Record[0];
- F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)Blob.data();
- break;
- case OBJC_CATEGORIES:
- F.ObjCCategories.swap(Record);
- break;
- case CUDA_SPECIAL_DECL_REFS:
- // Later tables overwrite earlier ones.
- // FIXME: Modules will have trouble with this.
- CUDASpecialDeclRefs.clear();
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- CUDASpecialDeclRefs.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case HEADER_SEARCH_TABLE:
- F.HeaderFileInfoTableData = Blob.data();
- F.LocalNumHeaderFileInfos = Record[1];
- if (Record[0]) {
- F.HeaderFileInfoTable
- = HeaderFileInfoLookupTable::Create(
- (const unsigned char *)F.HeaderFileInfoTableData + Record[0],
- (const unsigned char *)F.HeaderFileInfoTableData,
- HeaderFileInfoTrait(*this, F,
- &PP.getHeaderSearchInfo(),
- Blob.data() + Record[2]));
- PP.getHeaderSearchInfo().SetExternalSource(this);
- if (!PP.getHeaderSearchInfo().getExternalLookup())
- PP.getHeaderSearchInfo().SetExternalLookup(this);
- }
- break;
- case FP_PRAGMA_OPTIONS:
- // Later tables overwrite earlier ones.
- FPPragmaOptions.swap(Record);
- break;
- case OPENCL_EXTENSIONS:
- for (unsigned I = 0, E = Record.size(); I != E; ) {
- auto Name = ReadString(Record, I);
- auto &Opt = OpenCLExtensions.OptMap[Name];
- Opt.Supported = Record[I++] != 0;
- Opt.Enabled = Record[I++] != 0;
- Opt.Avail = Record[I++];
- Opt.Core = Record[I++];
- }
- break;
- case OPENCL_EXTENSION_TYPES:
- for (unsigned I = 0, E = Record.size(); I != E;) {
- auto TypeID = static_cast<::TypeID>(Record[I++]);
- auto *Type = GetType(TypeID).getTypePtr();
- auto NumExt = static_cast<unsigned>(Record[I++]);
- for (unsigned II = 0; II != NumExt; ++II) {
- auto Ext = ReadString(Record, I);
- OpenCLTypeExtMap[Type].insert(Ext);
- }
- }
- break;
- case OPENCL_EXTENSION_DECLS:
- for (unsigned I = 0, E = Record.size(); I != E;) {
- auto DeclID = static_cast<::DeclID>(Record[I++]);
- auto *Decl = GetDecl(DeclID);
- auto NumExt = static_cast<unsigned>(Record[I++]);
- for (unsigned II = 0; II != NumExt; ++II) {
- auto Ext = ReadString(Record, I);
- OpenCLDeclExtMap[Decl].insert(Ext);
- }
- }
- break;
- case TENTATIVE_DEFINITIONS:
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- TentativeDefinitions.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case KNOWN_NAMESPACES:
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- KnownNamespaces.push_back(getGlobalDeclID(F, Record[I]));
- break;
- case UNDEFINED_BUT_USED:
- if (UndefinedButUsed.size() % 2 != 0) {
- Error("Invalid existing UndefinedButUsed");
- return Failure;
- }
- if (Record.size() % 2 != 0) {
- Error("invalid undefined-but-used record");
- return Failure;
- }
- for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
- UndefinedButUsed.push_back(getGlobalDeclID(F, Record[I++]));
- UndefinedButUsed.push_back(
- ReadSourceLocation(F, Record, I).getRawEncoding());
- }
- break;
- case DELETE_EXPRS_TO_ANALYZE:
- for (unsigned I = 0, N = Record.size(); I != N;) {
- DelayedDeleteExprs.push_back(getGlobalDeclID(F, Record[I++]));
- const uint64_t Count = Record[I++];
- DelayedDeleteExprs.push_back(Count);
- for (uint64_t C = 0; C < Count; ++C) {
- DelayedDeleteExprs.push_back(ReadSourceLocation(F, Record, I).getRawEncoding());
- bool IsArrayForm = Record[I++] == 1;
- DelayedDeleteExprs.push_back(IsArrayForm);
- }
- }
- break;
- case IMPORTED_MODULES:
- if (!F.isModule()) {
- // If we aren't loading a module (which has its own exports), make
- // all of the imported modules visible.
- // FIXME: Deal with macros-only imports.
- for (unsigned I = 0, N = Record.size(); I != N; /**/) {
- unsigned GlobalID = getGlobalSubmoduleID(F, Record[I++]);
- SourceLocation Loc = ReadSourceLocation(F, Record, I);
- if (GlobalID) {
- ImportedModules.push_back(ImportedSubmodule(GlobalID, Loc));
- if (DeserializationListener)
- DeserializationListener->ModuleImportRead(GlobalID, Loc);
- }
- }
- }
- break;
- case MACRO_OFFSET: {
- if (F.LocalNumMacros != 0) {
- Error("duplicate MACRO_OFFSET record in AST file");
- return Failure;
- }
- F.MacroOffsets = (const uint32_t *)Blob.data();
- F.LocalNumMacros = Record[0];
- unsigned LocalBaseMacroID = Record[1];
- F.BaseMacroID = getTotalNumMacros();
- if (F.LocalNumMacros > 0) {
- // Introduce the global -> local mapping for macros within this module.
- GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F));
- // Introduce the local -> global mapping for macros within this module.
- F.MacroRemap.insertOrReplace(
- std::make_pair(LocalBaseMacroID,
- F.BaseMacroID - LocalBaseMacroID));
- MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros);
- }
- break;
- }
- case LATE_PARSED_TEMPLATE:
- LateParsedTemplates.append(Record.begin(), Record.end());
- break;
- case OPTIMIZE_PRAGMA_OPTIONS:
- if (Record.size() != 1) {
- Error("invalid pragma optimize record");
- return Failure;
- }
- OptimizeOffPragmaLocation = ReadSourceLocation(F, Record[0]);
- break;
- case MSSTRUCT_PRAGMA_OPTIONS:
- if (Record.size() != 1) {
- Error("invalid pragma ms_struct record");
- return Failure;
- }
- PragmaMSStructState = Record[0];
- break;
- case POINTERS_TO_MEMBERS_PRAGMA_OPTIONS:
- if (Record.size() != 2) {
- Error("invalid pragma ms_struct record");
- return Failure;
- }
- PragmaMSPointersToMembersState = Record[0];
- PointersToMembersPragmaLocation = ReadSourceLocation(F, Record[1]);
- break;
- case UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES:
- for (unsigned I = 0, N = Record.size(); I != N; ++I)
- UnusedLocalTypedefNameCandidates.push_back(
- getGlobalDeclID(F, Record[I]));
- break;
- case CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH:
- if (Record.size() != 1) {
- Error("invalid cuda pragma options record");
- return Failure;
- }
- ForceCUDAHostDeviceDepth = Record[0];
- break;
- case PACK_PRAGMA_OPTIONS: {
- if (Record.size() < 3) {
- Error("invalid pragma pack record");
- return Failure;
- }
- PragmaPackCurrentValue = Record[0];
- PragmaPackCurrentLocation = ReadSourceLocation(F, Record[1]);
- unsigned NumStackEntries = Record[2];
- unsigned Idx = 3;
- // Reset the stack when importing a new module.
- PragmaPackStack.clear();
- for (unsigned I = 0; I < NumStackEntries; ++I) {
- PragmaPackStackEntry Entry;
- Entry.Value = Record[Idx++];
- Entry.Location = ReadSourceLocation(F, Record[Idx++]);
- Entry.PushLocation = ReadSourceLocation(F, Record[Idx++]);
- PragmaPackStrings.push_back(ReadString(Record, Idx));
- Entry.SlotLabel = PragmaPackStrings.back();
- PragmaPackStack.push_back(Entry);
- }
- break;
- }
- }
- }
- }
- void ASTReader::ReadModuleOffsetMap(ModuleFile &F) const {
- assert(!F.ModuleOffsetMap.empty() && "no module offset map to read");
- // Additional remapping information.
- const unsigned char *Data = (const unsigned char*)F.ModuleOffsetMap.data();
- const unsigned char *DataEnd = Data + F.ModuleOffsetMap.size();
- F.ModuleOffsetMap = StringRef();
- // If we see this entry before SOURCE_LOCATION_OFFSETS, add placeholders.
- if (F.SLocRemap.find(0) == F.SLocRemap.end()) {
- F.SLocRemap.insert(std::make_pair(0U, 0));
- F.SLocRemap.insert(std::make_pair(2U, 1));
- }
- // Continuous range maps we may be updating in our module.
- using RemapBuilder = ContinuousRangeMap<uint32_t, int, 2>::Builder;
- RemapBuilder SLocRemap(F.SLocRemap);
- RemapBuilder IdentifierRemap(F.IdentifierRemap);
- RemapBuilder MacroRemap(F.MacroRemap);
- RemapBuilder PreprocessedEntityRemap(F.PreprocessedEntityRemap);
- RemapBuilder SubmoduleRemap(F.SubmoduleRemap);
- RemapBuilder SelectorRemap(F.SelectorRemap);
- RemapBuilder DeclRemap(F.DeclRemap);
- RemapBuilder TypeRemap(F.TypeRemap);
- while (Data < DataEnd) {
- // FIXME: Looking up dependency modules by filename is horrible. Let's
- // start fixing this with prebuilt and explicit modules and see how it
- // goes...
- using namespace llvm::support;
- ModuleKind Kind = static_cast<ModuleKind>(
- endian::readNext<uint8_t, little, unaligned>(Data));
- uint16_t Len = endian::readNext<uint16_t, little, unaligned>(Data);
- StringRef Name = StringRef((const char*)Data, Len);
- Data += Len;
- ModuleFile *OM = (Kind == MK_PrebuiltModule || Kind == MK_ExplicitModule
- ? ModuleMgr.lookupByModuleName(Name)
- : ModuleMgr.lookupByFileName(Name));
- if (!OM) {
- std::string Msg =
- "SourceLocation remap refers to unknown module, cannot find ";
- Msg.append(Name);
- Error(Msg);
- return;
- }
- uint32_t SLocOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t IdentifierIDOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t MacroIDOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t PreprocessedEntityIDOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t SubmoduleIDOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t SelectorIDOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t DeclIDOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t TypeIndexOffset =
- endian::readNext<uint32_t, little, unaligned>(Data);
- uint32_t None = std::numeric_limits<uint32_t>::max();
- auto mapOffset = [&](uint32_t Offset, uint32_t BaseOffset,
- RemapBuilder &Remap) {
- if (Offset != None)
- Remap.insert(std::make_pair(Offset,
- static_cast<int>(BaseOffset - Offset)));
- };
- mapOffset(SLocOffset, OM->SLocEntryBaseOffset, SLocRemap);
- mapOffset(IdentifierIDOffset, OM->BaseIdentifierID, IdentifierRemap);
- mapOffset(MacroIDOffset, OM->BaseMacroID, MacroRemap);
- mapOffset(PreprocessedEntityIDOffset, OM->BasePreprocessedEntityID,
- PreprocessedEntityRemap);
- mapOffset(SubmoduleIDOffset, OM->BaseSubmoduleID, SubmoduleRemap);
- mapOffset(SelectorIDOffset, OM->BaseSelectorID, SelectorRemap);
- mapOffset(DeclIDOffset, OM->BaseDeclID, DeclRemap);
- mapOffset(TypeIndexOffset, OM->BaseTypeIndex, TypeRemap);
- // Global -> local mappings.
- F.GlobalToLocalDeclIDs[OM] = DeclIDOffset;
- }
- }
- ASTReader::ASTReadResult
- ASTReader::ReadModuleMapFileBlock(RecordData &Record, ModuleFile &F,
- const ModuleFile *ImportedBy,
- unsigned ClientLoadCapabilities) {
- unsigned Idx = 0;
- F.ModuleMapPath = ReadPath(F, Record, Idx);
- // Try to resolve ModuleName in the current header search context and
- // verify that it is found in the same module map file as we saved. If the
- // top-level AST file is a main file, skip this check because there is no
- // usable header search context.
- assert(!F.ModuleName.empty() &&
- "MODULE_NAME should come before MODULE_MAP_FILE");
- if (F.Kind == MK_ImplicitModule && ModuleMgr.begin()->Kind != MK_MainFile) {
- // An implicitly-loaded module file should have its module listed in some
- // module map file that we've already loaded.
- Module *M = PP.getHeaderSearchInfo().lookupModule(F.ModuleName);
- auto &Map = PP.getHeaderSearchInfo().getModuleMap();
- const FileEntry *ModMap = M ? Map.getModuleMapFileForUniquing(M) : nullptr;
- // Don't emit module relocation error if we have -fno-validate-pch
- if (!PP.getPreprocessorOpts().DisablePCHValidation && !ModMap) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) {
- if (auto *ASTFE = M ? M->getASTFile() : nullptr) {
- // This module was defined by an imported (explicit) module.
- Diag(diag::err_module_file_conflict) << F.ModuleName << F.FileName
- << ASTFE->getName();
- } else {
- // This module was built with a different module map.
- Diag(diag::err_imported_module_not_found)
- << F.ModuleName << F.FileName
- << (ImportedBy ? ImportedBy->FileName : "") << F.ModuleMapPath
- << !ImportedBy;
- // In case it was imported by a PCH, there's a chance the user is
- // just missing to include the search path to the directory containing
- // the modulemap.
- if (ImportedBy && ImportedBy->Kind == MK_PCH)
- Diag(diag::note_imported_by_pch_module_not_found)
- << llvm::sys::path::parent_path(F.ModuleMapPath);
- }
- }
- return OutOfDate;
- }
- assert(M->Name == F.ModuleName && "found module with different name");
- // Check the primary module map file.
- auto StoredModMap = FileMgr.getFile(F.ModuleMapPath);
- if (!StoredModMap || *StoredModMap != ModMap) {
- assert(ModMap && "found module is missing module map file");
- assert((ImportedBy || F.Kind == MK_ImplicitModule) &&
- "top-level import should be verified");
- bool NotImported = F.Kind == MK_ImplicitModule && !ImportedBy;
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Diag(diag::err_imported_module_modmap_changed)
- << F.ModuleName << (NotImported ? F.FileName : ImportedBy->FileName)
- << ModMap->getName() << F.ModuleMapPath << NotImported;
- return OutOfDate;
- }
- llvm::SmallPtrSet<const FileEntry *, 1> AdditionalStoredMaps;
- for (unsigned I = 0, N = Record[Idx++]; I < N; ++I) {
- // FIXME: we should use input files rather than storing names.
- std::string Filename = ReadPath(F, Record, Idx);
- auto F = FileMgr.getFile(Filename, false, false);
- if (!F) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Error("could not find file '" + Filename +"' referenced by AST file");
- return OutOfDate;
- }
- AdditionalStoredMaps.insert(*F);
- }
- // Check any additional module map files (e.g. module.private.modulemap)
- // that are not in the pcm.
- if (auto *AdditionalModuleMaps = Map.getAdditionalModuleMapFiles(M)) {
- for (const FileEntry *ModMap : *AdditionalModuleMaps) {
- // Remove files that match
- // Note: SmallPtrSet::erase is really remove
- if (!AdditionalStoredMaps.erase(ModMap)) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Diag(diag::err_module_different_modmap)
- << F.ModuleName << /*new*/0 << ModMap->getName();
- return OutOfDate;
- }
- }
- }
- // Check any additional module map files that are in the pcm, but not
- // found in header search. Cases that match are already removed.
- for (const FileEntry *ModMap : AdditionalStoredMaps) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Diag(diag::err_module_different_modmap)
- << F.ModuleName << /*not new*/1 << ModMap->getName();
- return OutOfDate;
- }
- }
- if (Listener)
- Listener->ReadModuleMapFile(F.ModuleMapPath);
- return Success;
- }
- /// Move the given method to the back of the global list of methods.
- static void moveMethodToBackOfGlobalList(Sema &S, ObjCMethodDecl *Method) {
- // Find the entry for this selector in the method pool.
- Sema::GlobalMethodPool::iterator Known
- = S.MethodPool.find(Method->getSelector());
- if (Known == S.MethodPool.end())
- return;
- // Retrieve the appropriate method list.
- ObjCMethodList &Start = Method->isInstanceMethod()? Known->second.first
- : Known->second.second;
- bool Found = false;
- for (ObjCMethodList *List = &Start; List; List = List->getNext()) {
- if (!Found) {
- if (List->getMethod() == Method) {
- Found = true;
- } else {
- // Keep searching.
- continue;
- }
- }
- if (List->getNext())
- List->setMethod(List->getNext()->getMethod());
- else
- List->setMethod(Method);
- }
- }
- void ASTReader::makeNamesVisible(const HiddenNames &Names, Module *Owner) {
- assert(Owner->NameVisibility != Module::Hidden && "nothing to make visible?");
- for (Decl *D : Names) {
- bool wasHidden = D->isHidden();
- D->setVisibleDespiteOwningModule();
- if (wasHidden && SemaObj) {
- if (ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(D)) {
- moveMethodToBackOfGlobalList(*SemaObj, Method);
- }
- }
- }
- }
- void ASTReader::makeModuleVisible(Module *Mod,
- Module::NameVisibilityKind NameVisibility,
- SourceLocation ImportLoc) {
- llvm::SmallPtrSet<Module *, 4> Visited;
- SmallVector<Module *, 4> Stack;
- Stack.push_back(Mod);
- while (!Stack.empty()) {
- Mod = Stack.pop_back_val();
- if (NameVisibility <= Mod->NameVisibility) {
- // This module already has this level of visibility (or greater), so
- // there is nothing more to do.
- continue;
- }
- if (!Mod->isAvailable()) {
- // Modules that aren't available cannot be made visible.
- continue;
- }
- // Update the module's name visibility.
- Mod->NameVisibility = NameVisibility;
- // If we've already deserialized any names from this module,
- // mark them as visible.
- HiddenNamesMapType::iterator Hidden = HiddenNamesMap.find(Mod);
- if (Hidden != HiddenNamesMap.end()) {
- auto HiddenNames = std::move(*Hidden);
- HiddenNamesMap.erase(Hidden);
- makeNamesVisible(HiddenNames.second, HiddenNames.first);
- assert(HiddenNamesMap.find(Mod) == HiddenNamesMap.end() &&
- "making names visible added hidden names");
- }
- // Push any exported modules onto the stack to be marked as visible.
- SmallVector<Module *, 16> Exports;
- Mod->getExportedModules(Exports);
- for (SmallVectorImpl<Module *>::iterator
- I = Exports.begin(), E = Exports.end(); I != E; ++I) {
- Module *Exported = *I;
- if (Visited.insert(Exported).second)
- Stack.push_back(Exported);
- }
- }
- }
- /// We've merged the definition \p MergedDef into the existing definition
- /// \p Def. Ensure that \p Def is made visible whenever \p MergedDef is made
- /// visible.
- void ASTReader::mergeDefinitionVisibility(NamedDecl *Def,
- NamedDecl *MergedDef) {
- if (Def->isHidden()) {
- // If MergedDef is visible or becomes visible, make the definition visible.
- if (!MergedDef->isHidden())
- Def->setVisibleDespiteOwningModule();
- else {
- getContext().mergeDefinitionIntoModule(
- Def, MergedDef->getImportedOwningModule(),
- /*NotifyListeners*/ false);
- PendingMergedDefinitionsToDeduplicate.insert(Def);
- }
- }
- }
- bool ASTReader::loadGlobalIndex() {
- if (GlobalIndex)
- return false;
- if (TriedLoadingGlobalIndex || !UseGlobalIndex ||
- !PP.getLangOpts().Modules)
- return true;
- // Try to load the global index.
- TriedLoadingGlobalIndex = true;
- StringRef ModuleCachePath
- = getPreprocessor().getHeaderSearchInfo().getModuleCachePath();
- std::pair<GlobalModuleIndex *, llvm::Error> Result =
- GlobalModuleIndex::readIndex(ModuleCachePath);
- if (llvm::Error Err = std::move(Result.second)) {
- assert(!Result.first);
- consumeError(std::move(Err)); // FIXME this drops errors on the floor.
- return true;
- }
- GlobalIndex.reset(Result.first);
- ModuleMgr.setGlobalIndex(GlobalIndex.get());
- return false;
- }
- bool ASTReader::isGlobalIndexUnavailable() const {
- return PP.getLangOpts().Modules && UseGlobalIndex &&
- !hasGlobalIndex() && TriedLoadingGlobalIndex;
- }
- static void updateModuleTimestamp(ModuleFile &MF) {
- // Overwrite the timestamp file contents so that file's mtime changes.
- std::string TimestampFilename = MF.getTimestampFilename();
- std::error_code EC;
- llvm::raw_fd_ostream OS(TimestampFilename, EC, llvm::sys::fs::OF_Text);
- if (EC)
- return;
- OS << "Timestamp file\n";
- OS.close();
- OS.clear_error(); // Avoid triggering a fatal error.
- }
- /// Given a cursor at the start of an AST file, scan ahead and drop the
- /// cursor into the start of the given block ID, returning false on success and
- /// true on failure.
- static bool SkipCursorToBlock(BitstreamCursor &Cursor, unsigned BlockID) {
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Cursor.advance();
- if (!MaybeEntry) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeEntry.takeError());
- return true;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::Error:
- case llvm::BitstreamEntry::EndBlock:
- return true;
- case llvm::BitstreamEntry::Record:
- // Ignore top-level records.
- if (Expected<unsigned> Skipped = Cursor.skipRecord(Entry.ID))
- break;
- else {
- // FIXME this drops errors on the floor.
- consumeError(Skipped.takeError());
- return true;
- }
- case llvm::BitstreamEntry::SubBlock:
- if (Entry.ID == BlockID) {
- if (llvm::Error Err = Cursor.EnterSubBlock(BlockID)) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return true;
- }
- // Found it!
- return false;
- }
- if (llvm::Error Err = Cursor.SkipBlock()) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return true;
- }
- }
- }
- }
- ASTReader::ASTReadResult ASTReader::ReadAST(StringRef FileName,
- ModuleKind Type,
- SourceLocation ImportLoc,
- unsigned ClientLoadCapabilities,
- SmallVectorImpl<ImportedSubmodule> *Imported) {
- llvm::SaveAndRestore<SourceLocation>
- SetCurImportLocRAII(CurrentImportLoc, ImportLoc);
- // Defer any pending actions until we get to the end of reading the AST file.
- Deserializing AnASTFile(this);
- // Bump the generation number.
- unsigned PreviousGeneration = 0;
- if (ContextObj)
- PreviousGeneration = incrementGeneration(*ContextObj);
- unsigned NumModules = ModuleMgr.size();
- SmallVector<ImportedModule, 4> Loaded;
- switch (ASTReadResult ReadResult =
- ReadASTCore(FileName, Type, ImportLoc,
- /*ImportedBy=*/nullptr, Loaded, 0, 0,
- ASTFileSignature(), ClientLoadCapabilities)) {
- case Failure:
- case Missing:
- case OutOfDate:
- case VersionMismatch:
- case ConfigurationMismatch:
- case HadErrors: {
- llvm::SmallPtrSet<ModuleFile *, 4> LoadedSet;
- for (const ImportedModule &IM : Loaded)
- LoadedSet.insert(IM.Mod);
- ModuleMgr.removeModules(ModuleMgr.begin() + NumModules, LoadedSet,
- PP.getLangOpts().Modules
- ? &PP.getHeaderSearchInfo().getModuleMap()
- : nullptr);
- // If we find that any modules are unusable, the global index is going
- // to be out-of-date. Just remove it.
- GlobalIndex.reset();
- ModuleMgr.setGlobalIndex(nullptr);
- return ReadResult;
- }
- case Success:
- break;
- }
- // Here comes stuff that we only do once the entire chain is loaded.
- // Load the AST blocks of all of the modules that we loaded.
- for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(),
- MEnd = Loaded.end();
- M != MEnd; ++M) {
- ModuleFile &F = *M->Mod;
- // Read the AST block.
- if (ASTReadResult Result = ReadASTBlock(F, ClientLoadCapabilities))
- return Result;
- // Read the extension blocks.
- while (!SkipCursorToBlock(F.Stream, EXTENSION_BLOCK_ID)) {
- if (ASTReadResult Result = ReadExtensionBlock(F))
- return Result;
- }
- // Once read, set the ModuleFile bit base offset and update the size in
- // bits of all files we've seen.
- F.GlobalBitOffset = TotalModulesSizeInBits;
- TotalModulesSizeInBits += F.SizeInBits;
- GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F));
- // Preload SLocEntries.
- for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) {
- int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID;
- // Load it through the SourceManager and don't call ReadSLocEntry()
- // directly because the entry may have already been loaded in which case
- // calling ReadSLocEntry() directly would trigger an assertion in
- // SourceManager.
- SourceMgr.getLoadedSLocEntryByID(Index);
- }
- // Map the original source file ID into the ID space of the current
- // compilation.
- if (F.OriginalSourceFileID.isValid()) {
- F.OriginalSourceFileID = FileID::get(
- F.SLocEntryBaseID + F.OriginalSourceFileID.getOpaqueValue() - 1);
- }
- // Preload all the pending interesting identifiers by marking them out of
- // date.
- for (auto Offset : F.PreloadIdentifierOffsets) {
- const unsigned char *Data = reinterpret_cast<const unsigned char *>(
- F.IdentifierTableData + Offset);
- ASTIdentifierLookupTrait Trait(*this, F);
- auto KeyDataLen = Trait.ReadKeyDataLength(Data);
- auto Key = Trait.ReadKey(Data, KeyDataLen.first);
- auto &II = PP.getIdentifierTable().getOwn(Key);
- II.setOutOfDate(true);
- // Mark this identifier as being from an AST file so that we can track
- // whether we need to serialize it.
- markIdentifierFromAST(*this, II);
- // Associate the ID with the identifier so that the writer can reuse it.
- auto ID = Trait.ReadIdentifierID(Data + KeyDataLen.first);
- SetIdentifierInfo(ID, &II);
- }
- }
- // Setup the import locations and notify the module manager that we've
- // committed to these module files.
- for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(),
- MEnd = Loaded.end();
- M != MEnd; ++M) {
- ModuleFile &F = *M->Mod;
- ModuleMgr.moduleFileAccepted(&F);
- // Set the import location.
- F.DirectImportLoc = ImportLoc;
- // FIXME: We assume that locations from PCH / preamble do not need
- // any translation.
- if (!M->ImportedBy)
- F.ImportLoc = M->ImportLoc;
- else
- F.ImportLoc = TranslateSourceLocation(*M->ImportedBy, M->ImportLoc);
- }
- if (!PP.getLangOpts().CPlusPlus ||
- (Type != MK_ImplicitModule && Type != MK_ExplicitModule &&
- Type != MK_PrebuiltModule)) {
- // Mark all of the identifiers in the identifier table as being out of date,
- // so that various accessors know to check the loaded modules when the
- // identifier is used.
- //
- // For C++ modules, we don't need information on many identifiers (just
- // those that provide macros or are poisoned), so we mark all of
- // the interesting ones via PreloadIdentifierOffsets.
- for (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(),
- IdEnd = PP.getIdentifierTable().end();
- Id != IdEnd; ++Id)
- Id->second->setOutOfDate(true);
- }
- // Mark selectors as out of date.
- for (auto Sel : SelectorGeneration)
- SelectorOutOfDate[Sel.first] = true;
- // Resolve any unresolved module exports.
- for (unsigned I = 0, N = UnresolvedModuleRefs.size(); I != N; ++I) {
- UnresolvedModuleRef &Unresolved = UnresolvedModuleRefs[I];
- SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID);
- Module *ResolvedMod = getSubmodule(GlobalID);
- switch (Unresolved.Kind) {
- case UnresolvedModuleRef::Conflict:
- if (ResolvedMod) {
- Module::Conflict Conflict;
- Conflict.Other = ResolvedMod;
- Conflict.Message = Unresolved.String.str();
- Unresolved.Mod->Conflicts.push_back(Conflict);
- }
- continue;
- case UnresolvedModuleRef::Import:
- if (ResolvedMod)
- Unresolved.Mod->Imports.insert(ResolvedMod);
- continue;
- case UnresolvedModuleRef::Export:
- if (ResolvedMod || Unresolved.IsWildcard)
- Unresolved.Mod->Exports.push_back(
- Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard));
- continue;
- }
- }
- UnresolvedModuleRefs.clear();
- if (Imported)
- Imported->append(ImportedModules.begin(),
- ImportedModules.end());
- // FIXME: How do we load the 'use'd modules? They may not be submodules.
- // Might be unnecessary as use declarations are only used to build the
- // module itself.
- if (ContextObj)
- InitializeContext();
- if (SemaObj)
- UpdateSema();
- if (DeserializationListener)
- DeserializationListener->ReaderInitialized(this);
- ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule();
- if (PrimaryModule.OriginalSourceFileID.isValid()) {
- // If this AST file is a precompiled preamble, then set the
- // preamble file ID of the source manager to the file source file
- // from which the preamble was built.
- if (Type == MK_Preamble) {
- SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID);
- } else if (Type == MK_MainFile) {
- SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID);
- }
- }
- // For any Objective-C class definitions we have already loaded, make sure
- // that we load any additional categories.
- if (ContextObj) {
- for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) {
- loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(),
- ObjCClassesLoaded[I],
- PreviousGeneration);
- }
- }
- if (PP.getHeaderSearchInfo()
- .getHeaderSearchOpts()
- .ModulesValidateOncePerBuildSession) {
- // Now we are certain that the module and all modules it depends on are
- // up to date. Create or update timestamp files for modules that are
- // located in the module cache (not for PCH files that could be anywhere
- // in the filesystem).
- for (unsigned I = 0, N = Loaded.size(); I != N; ++I) {
- ImportedModule &M = Loaded[I];
- if (M.Mod->Kind == MK_ImplicitModule) {
- updateModuleTimestamp(*M.Mod);
- }
- }
- }
- return Success;
- }
- static ASTFileSignature readASTFileSignature(StringRef PCH);
- /// Whether \p Stream doesn't start with the AST/PCH file magic number 'CPCH'.
- static llvm::Error doesntStartWithASTFileMagic(BitstreamCursor &Stream) {
- // FIXME checking magic headers is done in other places such as
- // SerializedDiagnosticReader and GlobalModuleIndex, but error handling isn't
- // always done the same. Unify it all with a helper.
- if (!Stream.canSkipToPos(4))
- return llvm::createStringError(std::errc::illegal_byte_sequence,
- "file too small to contain AST file magic");
- for (unsigned C : {'C', 'P', 'C', 'H'})
- if (Expected<llvm::SimpleBitstreamCursor::word_t> Res = Stream.Read(8)) {
- if (Res.get() != C)
- return llvm::createStringError(
- std::errc::illegal_byte_sequence,
- "file doesn't start with AST file magic");
- } else
- return Res.takeError();
- return llvm::Error::success();
- }
- static unsigned moduleKindForDiagnostic(ModuleKind Kind) {
- switch (Kind) {
- case MK_PCH:
- return 0; // PCH
- case MK_ImplicitModule:
- case MK_ExplicitModule:
- case MK_PrebuiltModule:
- return 1; // module
- case MK_MainFile:
- case MK_Preamble:
- return 2; // main source file
- }
- llvm_unreachable("unknown module kind");
- }
- ASTReader::ASTReadResult
- ASTReader::ReadASTCore(StringRef FileName,
- ModuleKind Type,
- SourceLocation ImportLoc,
- ModuleFile *ImportedBy,
- SmallVectorImpl<ImportedModule> &Loaded,
- off_t ExpectedSize, time_t ExpectedModTime,
- ASTFileSignature ExpectedSignature,
- unsigned ClientLoadCapabilities) {
- ModuleFile *M;
- std::string ErrorStr;
- ModuleManager::AddModuleResult AddResult
- = ModuleMgr.addModule(FileName, Type, ImportLoc, ImportedBy,
- getGeneration(), ExpectedSize, ExpectedModTime,
- ExpectedSignature, readASTFileSignature,
- M, ErrorStr);
- switch (AddResult) {
- case ModuleManager::AlreadyLoaded:
- Diag(diag::remark_module_import)
- << M->ModuleName << M->FileName << (ImportedBy ? true : false)
- << (ImportedBy ? StringRef(ImportedBy->ModuleName) : StringRef());
- return Success;
- case ModuleManager::NewlyLoaded:
- // Load module file below.
- break;
- case ModuleManager::Missing:
- // The module file was missing; if the client can handle that, return
- // it.
- if (ClientLoadCapabilities & ARR_Missing)
- return Missing;
- // Otherwise, return an error.
- Diag(diag::err_module_file_not_found) << moduleKindForDiagnostic(Type)
- << FileName << !ErrorStr.empty()
- << ErrorStr;
- return Failure;
- case ModuleManager::OutOfDate:
- // We couldn't load the module file because it is out-of-date. If the
- // client can handle out-of-date, return it.
- if (ClientLoadCapabilities & ARR_OutOfDate)
- return OutOfDate;
- // Otherwise, return an error.
- Diag(diag::err_module_file_out_of_date) << moduleKindForDiagnostic(Type)
- << FileName << !ErrorStr.empty()
- << ErrorStr;
- return Failure;
- }
- assert(M && "Missing module file");
- bool ShouldFinalizePCM = false;
- auto FinalizeOrDropPCM = llvm::make_scope_exit([&]() {
- auto &MC = getModuleManager().getModuleCache();
- if (ShouldFinalizePCM)
- MC.finalizePCM(FileName);
- else
- MC.tryToDropPCM(FileName);
- });
- ModuleFile &F = *M;
- BitstreamCursor &Stream = F.Stream;
- Stream = BitstreamCursor(PCHContainerRdr.ExtractPCH(*F.Buffer));
- F.SizeInBits = F.Buffer->getBufferSize() * 8;
- // Sniff for the signature.
- if (llvm::Error Err = doesntStartWithASTFileMagic(Stream)) {
- Diag(diag::err_module_file_invalid)
- << moduleKindForDiagnostic(Type) << FileName << std::move(Err);
- return Failure;
- }
- // This is used for compatibility with older PCH formats.
- bool HaveReadControlBlock = false;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::Error:
- case llvm::BitstreamEntry::Record:
- case llvm::BitstreamEntry::EndBlock:
- Error("invalid record at top-level of AST file");
- return Failure;
- case llvm::BitstreamEntry::SubBlock:
- break;
- }
- switch (Entry.ID) {
- case CONTROL_BLOCK_ID:
- HaveReadControlBlock = true;
- switch (ReadControlBlock(F, Loaded, ImportedBy, ClientLoadCapabilities)) {
- case Success:
- // Check that we didn't try to load a non-module AST file as a module.
- //
- // FIXME: Should we also perform the converse check? Loading a module as
- // a PCH file sort of works, but it's a bit wonky.
- if ((Type == MK_ImplicitModule || Type == MK_ExplicitModule ||
- Type == MK_PrebuiltModule) &&
- F.ModuleName.empty()) {
- auto Result = (Type == MK_ImplicitModule) ? OutOfDate : Failure;
- if (Result != OutOfDate ||
- (ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Diag(diag::err_module_file_not_module) << FileName;
- return Result;
- }
- break;
- case Failure: return Failure;
- case Missing: return Missing;
- case OutOfDate: return OutOfDate;
- case VersionMismatch: return VersionMismatch;
- case ConfigurationMismatch: return ConfigurationMismatch;
- case HadErrors: return HadErrors;
- }
- break;
- case AST_BLOCK_ID:
- if (!HaveReadControlBlock) {
- if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
- Diag(diag::err_pch_version_too_old);
- return VersionMismatch;
- }
- // Record that we've loaded this module.
- Loaded.push_back(ImportedModule(M, ImportedBy, ImportLoc));
- ShouldFinalizePCM = true;
- return Success;
- case UNHASHED_CONTROL_BLOCK_ID:
- // This block is handled using look-ahead during ReadControlBlock. We
- // shouldn't get here!
- Error("malformed block record in AST file");
- return Failure;
- default:
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- break;
- }
- }
- llvm_unreachable("unexpected break; expected return");
- }
- ASTReader::ASTReadResult
- ASTReader::readUnhashedControlBlock(ModuleFile &F, bool WasImportedBy,
- unsigned ClientLoadCapabilities) {
- const HeaderSearchOptions &HSOpts =
- PP.getHeaderSearchInfo().getHeaderSearchOpts();
- bool AllowCompatibleConfigurationMismatch =
- F.Kind == MK_ExplicitModule || F.Kind == MK_PrebuiltModule;
- ASTReadResult Result = readUnhashedControlBlockImpl(
- &F, F.Data, ClientLoadCapabilities, AllowCompatibleConfigurationMismatch,
- Listener.get(),
- WasImportedBy ? false : HSOpts.ModulesValidateDiagnosticOptions);
- // If F was directly imported by another module, it's implicitly validated by
- // the importing module.
- if (DisableValidation || WasImportedBy ||
- (AllowConfigurationMismatch && Result == ConfigurationMismatch))
- return Success;
- if (Result == Failure) {
- Error("malformed block record in AST file");
- return Failure;
- }
- if (Result == OutOfDate && F.Kind == MK_ImplicitModule) {
- // If this module has already been finalized in the ModuleCache, we're stuck
- // with it; we can only load a single version of each module.
- //
- // This can happen when a module is imported in two contexts: in one, as a
- // user module; in another, as a system module (due to an import from
- // another module marked with the [system] flag). It usually indicates a
- // bug in the module map: this module should also be marked with [system].
- //
- // If -Wno-system-headers (the default), and the first import is as a
- // system module, then validation will fail during the as-user import,
- // since -Werror flags won't have been validated. However, it's reasonable
- // to treat this consistently as a system module.
- //
- // If -Wsystem-headers, the PCM on disk was built with
- // -Wno-system-headers, and the first import is as a user module, then
- // validation will fail during the as-system import since the PCM on disk
- // doesn't guarantee that -Werror was respected. However, the -Werror
- // flags were checked during the initial as-user import.
- if (getModuleManager().getModuleCache().isPCMFinal(F.FileName)) {
- Diag(diag::warn_module_system_bit_conflict) << F.FileName;
- return Success;
- }
- }
- return Result;
- }
- ASTReader::ASTReadResult ASTReader::readUnhashedControlBlockImpl(
- ModuleFile *F, llvm::StringRef StreamData, unsigned ClientLoadCapabilities,
- bool AllowCompatibleConfigurationMismatch, ASTReaderListener *Listener,
- bool ValidateDiagnosticOptions) {
- // Initialize a stream.
- BitstreamCursor Stream(StreamData);
- // Sniff for the signature.
- if (llvm::Error Err = doesntStartWithASTFileMagic(Stream)) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return Failure;
- }
- // Scan for the UNHASHED_CONTROL_BLOCK_ID block.
- if (SkipCursorToBlock(Stream, UNHASHED_CONTROL_BLOCK_ID))
- return Failure;
- // Read all of the records in the options block.
- RecordData Record;
- ASTReadResult Result = Success;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- // FIXME this drops the error on the floor.
- consumeError(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::Error:
- case llvm::BitstreamEntry::SubBlock:
- return Failure;
- case llvm::BitstreamEntry::EndBlock:
- return Result;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read and process a record.
- Record.clear();
- Expected<unsigned> MaybeRecordType = Stream.readRecord(Entry.ID, Record);
- if (!MaybeRecordType) {
- // FIXME this drops the error.
- return Failure;
- }
- switch ((UnhashedControlBlockRecordTypes)MaybeRecordType.get()) {
- case SIGNATURE:
- if (F)
- std::copy(Record.begin(), Record.end(), F->Signature.data());
- break;
- case DIAGNOSTIC_OPTIONS: {
- bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0;
- if (Listener && ValidateDiagnosticOptions &&
- !AllowCompatibleConfigurationMismatch &&
- ParseDiagnosticOptions(Record, Complain, *Listener))
- Result = OutOfDate; // Don't return early. Read the signature.
- break;
- }
- case DIAG_PRAGMA_MAPPINGS:
- if (!F)
- break;
- if (F->PragmaDiagMappings.empty())
- F->PragmaDiagMappings.swap(Record);
- else
- F->PragmaDiagMappings.insert(F->PragmaDiagMappings.end(),
- Record.begin(), Record.end());
- break;
- }
- }
- }
- /// Parse a record and blob containing module file extension metadata.
- static bool parseModuleFileExtensionMetadata(
- const SmallVectorImpl<uint64_t> &Record,
- StringRef Blob,
- ModuleFileExtensionMetadata &Metadata) {
- if (Record.size() < 4) return true;
- Metadata.MajorVersion = Record[0];
- Metadata.MinorVersion = Record[1];
- unsigned BlockNameLen = Record[2];
- unsigned UserInfoLen = Record[3];
- if (BlockNameLen + UserInfoLen > Blob.size()) return true;
- Metadata.BlockName = std::string(Blob.data(), Blob.data() + BlockNameLen);
- Metadata.UserInfo = std::string(Blob.data() + BlockNameLen,
- Blob.data() + BlockNameLen + UserInfoLen);
- return false;
- }
- ASTReader::ASTReadResult ASTReader::ReadExtensionBlock(ModuleFile &F) {
- BitstreamCursor &Stream = F.Stream;
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::SubBlock:
- if (llvm::Error Err = Stream.SkipBlock()) {
- Error(std::move(Err));
- return Failure;
- }
- continue;
- case llvm::BitstreamEntry::EndBlock:
- return Success;
- case llvm::BitstreamEntry::Error:
- return HadErrors;
- case llvm::BitstreamEntry::Record:
- break;
- }
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecCode =
- Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecCode) {
- Error(MaybeRecCode.takeError());
- return Failure;
- }
- switch (MaybeRecCode.get()) {
- case EXTENSION_METADATA: {
- ModuleFileExtensionMetadata Metadata;
- if (parseModuleFileExtensionMetadata(Record, Blob, Metadata))
- return Failure;
- // Find a module file extension with this block name.
- auto Known = ModuleFileExtensions.find(Metadata.BlockName);
- if (Known == ModuleFileExtensions.end()) break;
- // Form a reader.
- if (auto Reader = Known->second->createExtensionReader(Metadata, *this,
- F, Stream)) {
- F.ExtensionReaders.push_back(std::move(Reader));
- }
- break;
- }
- }
- }
- return Success;
- }
- void ASTReader::InitializeContext() {
- assert(ContextObj && "no context to initialize");
- ASTContext &Context = *ContextObj;
- // If there's a listener, notify them that we "read" the translation unit.
- if (DeserializationListener)
- DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID,
- Context.getTranslationUnitDecl());
- // FIXME: Find a better way to deal with collisions between these
- // built-in types. Right now, we just ignore the problem.
- // Load the special types.
- if (SpecialTypes.size() >= NumSpecialTypeIDs) {
- if (unsigned String = SpecialTypes[SPECIAL_TYPE_CF_CONSTANT_STRING]) {
- if (!Context.CFConstantStringTypeDecl)
- Context.setCFConstantStringType(GetType(String));
- }
- if (unsigned File = SpecialTypes[SPECIAL_TYPE_FILE]) {
- QualType FileType = GetType(File);
- if (FileType.isNull()) {
- Error("FILE type is NULL");
- return;
- }
- if (!Context.FILEDecl) {
- if (const TypedefType *Typedef = FileType->getAs<TypedefType>())
- Context.setFILEDecl(Typedef->getDecl());
- else {
- const TagType *Tag = FileType->getAs<TagType>();
- if (!Tag) {
- Error("Invalid FILE type in AST file");
- return;
- }
- Context.setFILEDecl(Tag->getDecl());
- }
- }
- }
- if (unsigned Jmp_buf = SpecialTypes[SPECIAL_TYPE_JMP_BUF]) {
- QualType Jmp_bufType = GetType(Jmp_buf);
- if (Jmp_bufType.isNull()) {
- Error("jmp_buf type is NULL");
- return;
- }
- if (!Context.jmp_bufDecl) {
- if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>())
- Context.setjmp_bufDecl(Typedef->getDecl());
- else {
- const TagType *Tag = Jmp_bufType->getAs<TagType>();
- if (!Tag) {
- Error("Invalid jmp_buf type in AST file");
- return;
- }
- Context.setjmp_bufDecl(Tag->getDecl());
- }
- }
- }
- if (unsigned Sigjmp_buf = SpecialTypes[SPECIAL_TYPE_SIGJMP_BUF]) {
- QualType Sigjmp_bufType = GetType(Sigjmp_buf);
- if (Sigjmp_bufType.isNull()) {
- Error("sigjmp_buf type is NULL");
- return;
- }
- if (!Context.sigjmp_bufDecl) {
- if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>())
- Context.setsigjmp_bufDecl(Typedef->getDecl());
- else {
- const TagType *Tag = Sigjmp_bufType->getAs<TagType>();
- assert(Tag && "Invalid sigjmp_buf type in AST file");
- Context.setsigjmp_bufDecl(Tag->getDecl());
- }
- }
- }
- if (unsigned ObjCIdRedef
- = SpecialTypes[SPECIAL_TYPE_OBJC_ID_REDEFINITION]) {
- if (Context.ObjCIdRedefinitionType.isNull())
- Context.ObjCIdRedefinitionType = GetType(ObjCIdRedef);
- }
- if (unsigned ObjCClassRedef
- = SpecialTypes[SPECIAL_TYPE_OBJC_CLASS_REDEFINITION]) {
- if (Context.ObjCClassRedefinitionType.isNull())
- Context.ObjCClassRedefinitionType = GetType(ObjCClassRedef);
- }
- if (unsigned ObjCSelRedef
- = SpecialTypes[SPECIAL_TYPE_OBJC_SEL_REDEFINITION]) {
- if (Context.ObjCSelRedefinitionType.isNull())
- Context.ObjCSelRedefinitionType = GetType(ObjCSelRedef);
- }
- if (unsigned Ucontext_t = SpecialTypes[SPECIAL_TYPE_UCONTEXT_T]) {
- QualType Ucontext_tType = GetType(Ucontext_t);
- if (Ucontext_tType.isNull()) {
- Error("ucontext_t type is NULL");
- return;
- }
- if (!Context.ucontext_tDecl) {
- if (const TypedefType *Typedef = Ucontext_tType->getAs<TypedefType>())
- Context.setucontext_tDecl(Typedef->getDecl());
- else {
- const TagType *Tag = Ucontext_tType->getAs<TagType>();
- assert(Tag && "Invalid ucontext_t type in AST file");
- Context.setucontext_tDecl(Tag->getDecl());
- }
- }
- }
- }
- ReadPragmaDiagnosticMappings(Context.getDiagnostics());
- // If there were any CUDA special declarations, deserialize them.
- if (!CUDASpecialDeclRefs.empty()) {
- assert(CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!");
- Context.setcudaConfigureCallDecl(
- cast<FunctionDecl>(GetDecl(CUDASpecialDeclRefs[0])));
- }
- // Re-export any modules that were imported by a non-module AST file.
- // FIXME: This does not make macro-only imports visible again.
- for (auto &Import : ImportedModules) {
- if (Module *Imported = getSubmodule(Import.ID)) {
- makeModuleVisible(Imported, Module::AllVisible,
- /*ImportLoc=*/Import.ImportLoc);
- if (Import.ImportLoc.isValid())
- PP.makeModuleVisible(Imported, Import.ImportLoc);
- // FIXME: should we tell Sema to make the module visible too?
- }
- }
- ImportedModules.clear();
- }
- void ASTReader::finalizeForWriting() {
- // Nothing to do for now.
- }
- /// Reads and return the signature record from \p PCH's control block, or
- /// else returns 0.
- static ASTFileSignature readASTFileSignature(StringRef PCH) {
- BitstreamCursor Stream(PCH);
- if (llvm::Error Err = doesntStartWithASTFileMagic(Stream)) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return ASTFileSignature();
- }
- // Scan for the UNHASHED_CONTROL_BLOCK_ID block.
- if (SkipCursorToBlock(Stream, UNHASHED_CONTROL_BLOCK_ID))
- return ASTFileSignature();
- // Scan for SIGNATURE inside the diagnostic options block.
- ASTReader::RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry =
- Stream.advanceSkippingSubblocks();
- if (!MaybeEntry) {
- // FIXME this drops the error on the floor.
- consumeError(MaybeEntry.takeError());
- return ASTFileSignature();
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- if (Entry.Kind != llvm::BitstreamEntry::Record)
- return ASTFileSignature();
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecord = Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecord) {
- // FIXME this drops the error on the floor.
- consumeError(MaybeRecord.takeError());
- return ASTFileSignature();
- }
- if (SIGNATURE == MaybeRecord.get())
- return {{{(uint32_t)Record[0], (uint32_t)Record[1], (uint32_t)Record[2],
- (uint32_t)Record[3], (uint32_t)Record[4]}}};
- }
- }
- /// Retrieve the name of the original source file name
- /// directly from the AST file, without actually loading the AST
- /// file.
- std::string ASTReader::getOriginalSourceFile(
- const std::string &ASTFileName, FileManager &FileMgr,
- const PCHContainerReader &PCHContainerRdr, DiagnosticsEngine &Diags) {
- // Open the AST file.
- auto Buffer = FileMgr.getBufferForFile(ASTFileName);
- if (!Buffer) {
- Diags.Report(diag::err_fe_unable_to_read_pch_file)
- << ASTFileName << Buffer.getError().message();
- return std::string();
- }
- // Initialize the stream
- BitstreamCursor Stream(PCHContainerRdr.ExtractPCH(**Buffer));
- // Sniff for the signature.
- if (llvm::Error Err = doesntStartWithASTFileMagic(Stream)) {
- Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName << std::move(Err);
- return std::string();
- }
- // Scan for the CONTROL_BLOCK_ID block.
- if (SkipCursorToBlock(Stream, CONTROL_BLOCK_ID)) {
- Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
- return std::string();
- }
- // Scan for ORIGINAL_FILE inside the control block.
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry =
- Stream.advanceSkippingSubblocks();
- if (!MaybeEntry) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeEntry.takeError());
- return std::string();
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- if (Entry.Kind == llvm::BitstreamEntry::EndBlock)
- return std::string();
- if (Entry.Kind != llvm::BitstreamEntry::Record) {
- Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
- return std::string();
- }
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecord = Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecord) {
- // FIXME this drops the errors on the floor.
- consumeError(MaybeRecord.takeError());
- return std::string();
- }
- if (ORIGINAL_FILE == MaybeRecord.get())
- return Blob.str();
- }
- }
- namespace {
- class SimplePCHValidator : public ASTReaderListener {
- const LangOptions &ExistingLangOpts;
- const TargetOptions &ExistingTargetOpts;
- const PreprocessorOptions &ExistingPPOpts;
- std::string ExistingModuleCachePath;
- FileManager &FileMgr;
- public:
- SimplePCHValidator(const LangOptions &ExistingLangOpts,
- const TargetOptions &ExistingTargetOpts,
- const PreprocessorOptions &ExistingPPOpts,
- StringRef ExistingModuleCachePath,
- FileManager &FileMgr)
- : ExistingLangOpts(ExistingLangOpts),
- ExistingTargetOpts(ExistingTargetOpts),
- ExistingPPOpts(ExistingPPOpts),
- ExistingModuleCachePath(ExistingModuleCachePath),
- FileMgr(FileMgr) {}
- bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain,
- bool AllowCompatibleDifferences) override {
- return checkLanguageOptions(ExistingLangOpts, LangOpts, nullptr,
- AllowCompatibleDifferences);
- }
- bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain,
- bool AllowCompatibleDifferences) override {
- return checkTargetOptions(ExistingTargetOpts, TargetOpts, nullptr,
- AllowCompatibleDifferences);
- }
- bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
- StringRef SpecificModuleCachePath,
- bool Complain) override {
- return checkHeaderSearchOptions(HSOpts, SpecificModuleCachePath,
- ExistingModuleCachePath,
- nullptr, ExistingLangOpts);
- }
- bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
- bool Complain,
- std::string &SuggestedPredefines) override {
- return checkPreprocessorOptions(ExistingPPOpts, PPOpts, nullptr, FileMgr,
- SuggestedPredefines, ExistingLangOpts);
- }
- };
- } // namespace
- bool ASTReader::readASTFileControlBlock(
- StringRef Filename, FileManager &FileMgr,
- const PCHContainerReader &PCHContainerRdr,
- bool FindModuleFileExtensions,
- ASTReaderListener &Listener, bool ValidateDiagnosticOptions) {
- // Open the AST file.
- // FIXME: This allows use of the VFS; we do not allow use of the
- // VFS when actually loading a module.
- auto Buffer = FileMgr.getBufferForFile(Filename);
- if (!Buffer) {
- return true;
- }
- // Initialize the stream
- StringRef Bytes = PCHContainerRdr.ExtractPCH(**Buffer);
- BitstreamCursor Stream(Bytes);
- // Sniff for the signature.
- if (llvm::Error Err = doesntStartWithASTFileMagic(Stream)) {
- consumeError(std::move(Err)); // FIXME this drops errors on the floor.
- return true;
- }
- // Scan for the CONTROL_BLOCK_ID block.
- if (SkipCursorToBlock(Stream, CONTROL_BLOCK_ID))
- return true;
- bool NeedsInputFiles = Listener.needsInputFileVisitation();
- bool NeedsSystemInputFiles = Listener.needsSystemInputFileVisitation();
- bool NeedsImports = Listener.needsImportVisitation();
- BitstreamCursor InputFilesCursor;
- RecordData Record;
- std::string ModuleDir;
- bool DoneWithControlBlock = false;
- while (!DoneWithControlBlock) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- // FIXME this drops the error on the floor.
- consumeError(MaybeEntry.takeError());
- return true;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::SubBlock: {
- switch (Entry.ID) {
- case OPTIONS_BLOCK_ID: {
- std::string IgnoredSuggestedPredefines;
- if (ReadOptionsBlock(Stream, ARR_ConfigurationMismatch | ARR_OutOfDate,
- /*AllowCompatibleConfigurationMismatch*/ false,
- Listener, IgnoredSuggestedPredefines) != Success)
- return true;
- break;
- }
- case INPUT_FILES_BLOCK_ID:
- InputFilesCursor = Stream;
- if (llvm::Error Err = Stream.SkipBlock()) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return true;
- }
- if (NeedsInputFiles &&
- ReadBlockAbbrevs(InputFilesCursor, INPUT_FILES_BLOCK_ID))
- return true;
- break;
- default:
- if (llvm::Error Err = Stream.SkipBlock()) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return true;
- }
- break;
- }
- continue;
- }
- case llvm::BitstreamEntry::EndBlock:
- DoneWithControlBlock = true;
- break;
- case llvm::BitstreamEntry::Error:
- return true;
- case llvm::BitstreamEntry::Record:
- break;
- }
- if (DoneWithControlBlock) break;
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecCode =
- Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecCode) {
- // FIXME this drops the error.
- return Failure;
- }
- switch ((ControlRecordTypes)MaybeRecCode.get()) {
- case METADATA:
- if (Record[0] != VERSION_MAJOR)
- return true;
- if (Listener.ReadFullVersionInformation(Blob))
- return true;
- break;
- case MODULE_NAME:
- Listener.ReadModuleName(Blob);
- break;
- case MODULE_DIRECTORY:
- ModuleDir = Blob;
- break;
- case MODULE_MAP_FILE: {
- unsigned Idx = 0;
- auto Path = ReadString(Record, Idx);
- ResolveImportedPath(Path, ModuleDir);
- Listener.ReadModuleMapFile(Path);
- break;
- }
- case INPUT_FILE_OFFSETS: {
- if (!NeedsInputFiles)
- break;
- unsigned NumInputFiles = Record[0];
- unsigned NumUserFiles = Record[1];
- const llvm::support::unaligned_uint64_t *InputFileOffs =
- (const llvm::support::unaligned_uint64_t *)Blob.data();
- for (unsigned I = 0; I != NumInputFiles; ++I) {
- // Go find this input file.
- bool isSystemFile = I >= NumUserFiles;
- if (isSystemFile && !NeedsSystemInputFiles)
- break; // the rest are system input files
- BitstreamCursor &Cursor = InputFilesCursor;
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(InputFileOffs[I])) {
- // FIXME this drops errors on the floor.
- consumeError(std::move(Err));
- }
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeCode.takeError());
- }
- unsigned Code = MaybeCode.get();
- RecordData Record;
- StringRef Blob;
- bool shouldContinue = false;
- Expected<unsigned> MaybeRecordType =
- Cursor.readRecord(Code, Record, &Blob);
- if (!MaybeRecordType) {
- // FIXME this drops errors on the floor.
- consumeError(MaybeRecordType.takeError());
- }
- switch ((InputFileRecordTypes)MaybeRecordType.get()) {
- case INPUT_FILE_HASH:
- break;
- case INPUT_FILE:
- bool Overridden = static_cast<bool>(Record[3]);
- std::string Filename = Blob;
- ResolveImportedPath(Filename, ModuleDir);
- shouldContinue = Listener.visitInputFile(
- Filename, isSystemFile, Overridden, /*IsExplicitModule*/false);
- break;
- }
- if (!shouldContinue)
- break;
- }
- break;
- }
- case IMPORTS: {
- if (!NeedsImports)
- break;
- unsigned Idx = 0, N = Record.size();
- while (Idx < N) {
- // Read information about the AST file.
- Idx += 1+1+1+1+5; // Kind, ImportLoc, Size, ModTime, Signature
- std::string ModuleName = ReadString(Record, Idx);
- std::string Filename = ReadString(Record, Idx);
- ResolveImportedPath(Filename, ModuleDir);
- Listener.visitImport(ModuleName, Filename);
- }
- break;
- }
- default:
- // No other validation to perform.
- break;
- }
- }
- // Look for module file extension blocks, if requested.
- if (FindModuleFileExtensions) {
- BitstreamCursor SavedStream = Stream;
- while (!SkipCursorToBlock(Stream, EXTENSION_BLOCK_ID)) {
- bool DoneWithExtensionBlock = false;
- while (!DoneWithExtensionBlock) {
- Expected<llvm::BitstreamEntry> MaybeEntry = Stream.advance();
- if (!MaybeEntry) {
- // FIXME this drops the error.
- return true;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::SubBlock:
- if (llvm::Error Err = Stream.SkipBlock()) {
- // FIXME this drops the error on the floor.
- consumeError(std::move(Err));
- return true;
- }
- continue;
- case llvm::BitstreamEntry::EndBlock:
- DoneWithExtensionBlock = true;
- continue;
- case llvm::BitstreamEntry::Error:
- return true;
- case llvm::BitstreamEntry::Record:
- break;
- }
- Record.clear();
- StringRef Blob;
- Expected<unsigned> MaybeRecCode =
- Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecCode) {
- // FIXME this drops the error.
- return true;
- }
- switch (MaybeRecCode.get()) {
- case EXTENSION_METADATA: {
- ModuleFileExtensionMetadata Metadata;
- if (parseModuleFileExtensionMetadata(Record, Blob, Metadata))
- return true;
- Listener.readModuleFileExtension(Metadata);
- break;
- }
- }
- }
- }
- Stream = SavedStream;
- }
- // Scan for the UNHASHED_CONTROL_BLOCK_ID block.
- if (readUnhashedControlBlockImpl(
- nullptr, Bytes, ARR_ConfigurationMismatch | ARR_OutOfDate,
- /*AllowCompatibleConfigurationMismatch*/ false, &Listener,
- ValidateDiagnosticOptions) != Success)
- return true;
- return false;
- }
- bool ASTReader::isAcceptableASTFile(StringRef Filename, FileManager &FileMgr,
- const PCHContainerReader &PCHContainerRdr,
- const LangOptions &LangOpts,
- const TargetOptions &TargetOpts,
- const PreprocessorOptions &PPOpts,
- StringRef ExistingModuleCachePath) {
- SimplePCHValidator validator(LangOpts, TargetOpts, PPOpts,
- ExistingModuleCachePath, FileMgr);
- return !readASTFileControlBlock(Filename, FileMgr, PCHContainerRdr,
- /*FindModuleFileExtensions=*/false,
- validator,
- /*ValidateDiagnosticOptions=*/true);
- }
- ASTReader::ASTReadResult
- ASTReader::ReadSubmoduleBlock(ModuleFile &F, unsigned ClientLoadCapabilities) {
- // Enter the submodule block.
- if (llvm::Error Err = F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) {
- Error(std::move(Err));
- return Failure;
- }
- ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap();
- bool First = true;
- Module *CurrentModule = nullptr;
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry =
- F.Stream.advanceSkippingSubblocks();
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return Failure;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::SubBlock: // Handled for us already.
- case llvm::BitstreamEntry::Error:
- Error("malformed block record in AST file");
- return Failure;
- case llvm::BitstreamEntry::EndBlock:
- return Success;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read a record.
- StringRef Blob;
- Record.clear();
- Expected<unsigned> MaybeKind = F.Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeKind) {
- Error(MaybeKind.takeError());
- return Failure;
- }
- unsigned Kind = MaybeKind.get();
- if ((Kind == SUBMODULE_METADATA) != First) {
- Error("submodule metadata record should be at beginning of block");
- return Failure;
- }
- First = false;
- // Submodule information is only valid if we have a current module.
- // FIXME: Should we error on these cases?
- if (!CurrentModule && Kind != SUBMODULE_METADATA &&
- Kind != SUBMODULE_DEFINITION)
- continue;
- switch (Kind) {
- default: // Default behavior: ignore.
- break;
- case SUBMODULE_DEFINITION: {
- if (Record.size() < 12) {
- Error("malformed module definition");
- return Failure;
- }
- StringRef Name = Blob;
- unsigned Idx = 0;
- SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[Idx++]);
- SubmoduleID Parent = getGlobalSubmoduleID(F, Record[Idx++]);
- Module::ModuleKind Kind = (Module::ModuleKind)Record[Idx++];
- bool IsFramework = Record[Idx++];
- bool IsExplicit = Record[Idx++];
- bool IsSystem = Record[Idx++];
- bool IsExternC = Record[Idx++];
- bool InferSubmodules = Record[Idx++];
- bool InferExplicitSubmodules = Record[Idx++];
- bool InferExportWildcard = Record[Idx++];
- bool ConfigMacrosExhaustive = Record[Idx++];
- bool ModuleMapIsPrivate = Record[Idx++];
- Module *ParentModule = nullptr;
- if (Parent)
- ParentModule = getSubmodule(Parent);
- // Retrieve this (sub)module from the module map, creating it if
- // necessary.
- CurrentModule =
- ModMap.findOrCreateModule(Name, ParentModule, IsFramework, IsExplicit)
- .first;
- // FIXME: set the definition loc for CurrentModule, or call
- // ModMap.setInferredModuleAllowedBy()
- SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS;
- if (GlobalIndex >= SubmodulesLoaded.size() ||
- SubmodulesLoaded[GlobalIndex]) {
- Error("too many submodules");
- return Failure;
- }
- if (!ParentModule) {
- if (const FileEntry *CurFile = CurrentModule->getASTFile()) {
- // Don't emit module relocation error if we have -fno-validate-pch
- if (!PP.getPreprocessorOpts().DisablePCHValidation &&
- CurFile != F.File) {
- if (!Diags.isDiagnosticInFlight()) {
- Diag(diag::err_module_file_conflict)
- << CurrentModule->getTopLevelModuleName()
- << CurFile->getName()
- << F.File->getName();
- }
- return Failure;
- }
- }
- CurrentModule->setASTFile(F.File);
- CurrentModule->PresumedModuleMapFile = F.ModuleMapPath;
- }
- CurrentModule->Kind = Kind;
- CurrentModule->Signature = F.Signature;
- CurrentModule->IsFromModuleFile = true;
- CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem;
- CurrentModule->IsExternC = IsExternC;
- CurrentModule->InferSubmodules = InferSubmodules;
- CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules;
- CurrentModule->InferExportWildcard = InferExportWildcard;
- CurrentModule->ConfigMacrosExhaustive = ConfigMacrosExhaustive;
- CurrentModule->ModuleMapIsPrivate = ModuleMapIsPrivate;
- if (DeserializationListener)
- DeserializationListener->ModuleRead(GlobalID, CurrentModule);
- SubmodulesLoaded[GlobalIndex] = CurrentModule;
- // Clear out data that will be replaced by what is in the module file.
- CurrentModule->LinkLibraries.clear();
- CurrentModule->ConfigMacros.clear();
- CurrentModule->UnresolvedConflicts.clear();
- CurrentModule->Conflicts.clear();
- // The module is available unless it's missing a requirement; relevant
- // requirements will be (re-)added by SUBMODULE_REQUIRES records.
- // Missing headers that were present when the module was built do not
- // make it unavailable -- if we got this far, this must be an explicitly
- // imported module file.
- CurrentModule->Requirements.clear();
- CurrentModule->MissingHeaders.clear();
- CurrentModule->IsMissingRequirement =
- ParentModule && ParentModule->IsMissingRequirement;
- CurrentModule->IsAvailable = !CurrentModule->IsMissingRequirement;
- break;
- }
- case SUBMODULE_UMBRELLA_HEADER: {
- std::string Filename = Blob;
- ResolveImportedPath(F, Filename);
- if (auto Umbrella = PP.getFileManager().getFile(Filename)) {
- if (!CurrentModule->getUmbrellaHeader())
- ModMap.setUmbrellaHeader(CurrentModule, *Umbrella, Blob);
- else if (CurrentModule->getUmbrellaHeader().Entry != *Umbrella) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Error("mismatched umbrella headers in submodule");
- return OutOfDate;
- }
- }
- break;
- }
- case SUBMODULE_HEADER:
- case SUBMODULE_EXCLUDED_HEADER:
- case SUBMODULE_PRIVATE_HEADER:
- // We lazily associate headers with their modules via the HeaderInfo table.
- // FIXME: Re-evaluate this section; maybe only store InputFile IDs instead
- // of complete filenames or remove it entirely.
- break;
- case SUBMODULE_TEXTUAL_HEADER:
- case SUBMODULE_PRIVATE_TEXTUAL_HEADER:
- // FIXME: Textual headers are not marked in the HeaderInfo table. Load
- // them here.
- break;
- case SUBMODULE_TOPHEADER:
- CurrentModule->addTopHeaderFilename(Blob);
- break;
- case SUBMODULE_UMBRELLA_DIR: {
- std::string Dirname = Blob;
- ResolveImportedPath(F, Dirname);
- if (auto Umbrella = PP.getFileManager().getDirectory(Dirname)) {
- if (!CurrentModule->getUmbrellaDir())
- ModMap.setUmbrellaDir(CurrentModule, *Umbrella, Blob);
- else if (CurrentModule->getUmbrellaDir().Entry != *Umbrella) {
- if ((ClientLoadCapabilities & ARR_OutOfDate) == 0)
- Error("mismatched umbrella directories in submodule");
- return OutOfDate;
- }
- }
- break;
- }
- case SUBMODULE_METADATA: {
- F.BaseSubmoduleID = getTotalNumSubmodules();
- F.LocalNumSubmodules = Record[0];
- unsigned LocalBaseSubmoduleID = Record[1];
- if (F.LocalNumSubmodules > 0) {
- // Introduce the global -> local mapping for submodules within this
- // module.
- GlobalSubmoduleMap.insert(std::make_pair(getTotalNumSubmodules()+1,&F));
- // Introduce the local -> global mapping for submodules within this
- // module.
- F.SubmoduleRemap.insertOrReplace(
- std::make_pair(LocalBaseSubmoduleID,
- F.BaseSubmoduleID - LocalBaseSubmoduleID));
- SubmodulesLoaded.resize(SubmodulesLoaded.size() + F.LocalNumSubmodules);
- }
- break;
- }
- case SUBMODULE_IMPORTS:
- for (unsigned Idx = 0; Idx != Record.size(); ++Idx) {
- UnresolvedModuleRef Unresolved;
- Unresolved.File = &F;
- Unresolved.Mod = CurrentModule;
- Unresolved.ID = Record[Idx];
- Unresolved.Kind = UnresolvedModuleRef::Import;
- Unresolved.IsWildcard = false;
- UnresolvedModuleRefs.push_back(Unresolved);
- }
- break;
- case SUBMODULE_EXPORTS:
- for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) {
- UnresolvedModuleRef Unresolved;
- Unresolved.File = &F;
- Unresolved.Mod = CurrentModule;
- Unresolved.ID = Record[Idx];
- Unresolved.Kind = UnresolvedModuleRef::Export;
- Unresolved.IsWildcard = Record[Idx + 1];
- UnresolvedModuleRefs.push_back(Unresolved);
- }
- // Once we've loaded the set of exports, there's no reason to keep
- // the parsed, unresolved exports around.
- CurrentModule->UnresolvedExports.clear();
- break;
- case SUBMODULE_REQUIRES:
- CurrentModule->addRequirement(Blob, Record[0], PP.getLangOpts(),
- PP.getTargetInfo());
- break;
- case SUBMODULE_LINK_LIBRARY:
- ModMap.resolveLinkAsDependencies(CurrentModule);
- CurrentModule->LinkLibraries.push_back(
- Module::LinkLibrary(Blob, Record[0]));
- break;
- case SUBMODULE_CONFIG_MACRO:
- CurrentModule->ConfigMacros.push_back(Blob.str());
- break;
- case SUBMODULE_CONFLICT: {
- UnresolvedModuleRef Unresolved;
- Unresolved.File = &F;
- Unresolved.Mod = CurrentModule;
- Unresolved.ID = Record[0];
- Unresolved.Kind = UnresolvedModuleRef::Conflict;
- Unresolved.IsWildcard = false;
- Unresolved.String = Blob;
- UnresolvedModuleRefs.push_back(Unresolved);
- break;
- }
- case SUBMODULE_INITIALIZERS: {
- if (!ContextObj)
- break;
- SmallVector<uint32_t, 16> Inits;
- for (auto &ID : Record)
- Inits.push_back(getGlobalDeclID(F, ID));
- ContextObj->addLazyModuleInitializers(CurrentModule, Inits);
- break;
- }
- case SUBMODULE_EXPORT_AS:
- CurrentModule->ExportAsModule = Blob.str();
- ModMap.addLinkAsDependency(CurrentModule);
- break;
- }
- }
- }
- /// Parse the record that corresponds to a LangOptions data
- /// structure.
- ///
- /// This routine parses the language options from the AST file and then gives
- /// them to the AST listener if one is set.
- ///
- /// \returns true if the listener deems the file unacceptable, false otherwise.
- bool ASTReader::ParseLanguageOptions(const RecordData &Record,
- bool Complain,
- ASTReaderListener &Listener,
- bool AllowCompatibleDifferences) {
- LangOptions LangOpts;
- unsigned Idx = 0;
- #define LANGOPT(Name, Bits, Default, Description) \
- LangOpts.Name = Record[Idx++];
- #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
- LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++]));
- #include "clang/Basic/LangOptions.def"
- #define SANITIZER(NAME, ID) \
- LangOpts.Sanitize.set(SanitizerKind::ID, Record[Idx++]);
- #include "clang/Basic/Sanitizers.def"
- for (unsigned N = Record[Idx++]; N; --N)
- LangOpts.ModuleFeatures.push_back(ReadString(Record, Idx));
- ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++];
- VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx);
- LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion);
- LangOpts.CurrentModule = ReadString(Record, Idx);
- // Comment options.
- for (unsigned N = Record[Idx++]; N; --N) {
- LangOpts.CommentOpts.BlockCommandNames.push_back(
- ReadString(Record, Idx));
- }
- LangOpts.CommentOpts.ParseAllComments = Record[Idx++];
- // OpenMP offloading options.
- for (unsigned N = Record[Idx++]; N; --N) {
- LangOpts.OMPTargetTriples.push_back(llvm::Triple(ReadString(Record, Idx)));
- }
- LangOpts.OMPHostIRFile = ReadString(Record, Idx);
- return Listener.ReadLanguageOptions(LangOpts, Complain,
- AllowCompatibleDifferences);
- }
- bool ASTReader::ParseTargetOptions(const RecordData &Record, bool Complain,
- ASTReaderListener &Listener,
- bool AllowCompatibleDifferences) {
- unsigned Idx = 0;
- TargetOptions TargetOpts;
- TargetOpts.Triple = ReadString(Record, Idx);
- TargetOpts.CPU = ReadString(Record, Idx);
- TargetOpts.ABI = ReadString(Record, Idx);
- for (unsigned N = Record[Idx++]; N; --N) {
- TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx));
- }
- for (unsigned N = Record[Idx++]; N; --N) {
- TargetOpts.Features.push_back(ReadString(Record, Idx));
- }
- return Listener.ReadTargetOptions(TargetOpts, Complain,
- AllowCompatibleDifferences);
- }
- bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain,
- ASTReaderListener &Listener) {
- IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts(new DiagnosticOptions);
- unsigned Idx = 0;
- #define DIAGOPT(Name, Bits, Default) DiagOpts->Name = Record[Idx++];
- #define ENUM_DIAGOPT(Name, Type, Bits, Default) \
- DiagOpts->set##Name(static_cast<Type>(Record[Idx++]));
- #include "clang/Basic/DiagnosticOptions.def"
- for (unsigned N = Record[Idx++]; N; --N)
- DiagOpts->Warnings.push_back(ReadString(Record, Idx));
- for (unsigned N = Record[Idx++]; N; --N)
- DiagOpts->Remarks.push_back(ReadString(Record, Idx));
- return Listener.ReadDiagnosticOptions(DiagOpts, Complain);
- }
- bool ASTReader::ParseFileSystemOptions(const RecordData &Record, bool Complain,
- ASTReaderListener &Listener) {
- FileSystemOptions FSOpts;
- unsigned Idx = 0;
- FSOpts.WorkingDir = ReadString(Record, Idx);
- return Listener.ReadFileSystemOptions(FSOpts, Complain);
- }
- bool ASTReader::ParseHeaderSearchOptions(const RecordData &Record,
- bool Complain,
- ASTReaderListener &Listener) {
- HeaderSearchOptions HSOpts;
- unsigned Idx = 0;
- HSOpts.Sysroot = ReadString(Record, Idx);
- // Include entries.
- for (unsigned N = Record[Idx++]; N; --N) {
- std::string Path = ReadString(Record, Idx);
- frontend::IncludeDirGroup Group
- = static_cast<frontend::IncludeDirGroup>(Record[Idx++]);
- bool IsFramework = Record[Idx++];
- bool IgnoreSysRoot = Record[Idx++];
- HSOpts.UserEntries.emplace_back(std::move(Path), Group, IsFramework,
- IgnoreSysRoot);
- }
- // System header prefixes.
- for (unsigned N = Record[Idx++]; N; --N) {
- std::string Prefix = ReadString(Record, Idx);
- bool IsSystemHeader = Record[Idx++];
- HSOpts.SystemHeaderPrefixes.emplace_back(std::move(Prefix), IsSystemHeader);
- }
- HSOpts.ResourceDir = ReadString(Record, Idx);
- HSOpts.ModuleCachePath = ReadString(Record, Idx);
- HSOpts.ModuleUserBuildPath = ReadString(Record, Idx);
- HSOpts.DisableModuleHash = Record[Idx++];
- HSOpts.ImplicitModuleMaps = Record[Idx++];
- HSOpts.ModuleMapFileHomeIsCwd = Record[Idx++];
- HSOpts.UseBuiltinIncludes = Record[Idx++];
- HSOpts.UseStandardSystemIncludes = Record[Idx++];
- HSOpts.UseStandardCXXIncludes = Record[Idx++];
- HSOpts.UseLibcxx = Record[Idx++];
- std::string SpecificModuleCachePath = ReadString(Record, Idx);
- return Listener.ReadHeaderSearchOptions(HSOpts, SpecificModuleCachePath,
- Complain);
- }
- bool ASTReader::ParsePreprocessorOptions(const RecordData &Record,
- bool Complain,
- ASTReaderListener &Listener,
- std::string &SuggestedPredefines) {
- PreprocessorOptions PPOpts;
- unsigned Idx = 0;
- // Macro definitions/undefs
- for (unsigned N = Record[Idx++]; N; --N) {
- std::string Macro = ReadString(Record, Idx);
- bool IsUndef = Record[Idx++];
- PPOpts.Macros.push_back(std::make_pair(Macro, IsUndef));
- }
- // Includes
- for (unsigned N = Record[Idx++]; N; --N) {
- PPOpts.Includes.push_back(ReadString(Record, Idx));
- }
- // Macro Includes
- for (unsigned N = Record[Idx++]; N; --N) {
- PPOpts.MacroIncludes.push_back(ReadString(Record, Idx));
- }
- PPOpts.UsePredefines = Record[Idx++];
- PPOpts.DetailedRecord = Record[Idx++];
- PPOpts.ImplicitPCHInclude = ReadString(Record, Idx);
- PPOpts.ObjCXXARCStandardLibrary =
- static_cast<ObjCXXARCStandardLibraryKind>(Record[Idx++]);
- SuggestedPredefines.clear();
- return Listener.ReadPreprocessorOptions(PPOpts, Complain,
- SuggestedPredefines);
- }
- std::pair<ModuleFile *, unsigned>
- ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) {
- GlobalPreprocessedEntityMapType::iterator
- I = GlobalPreprocessedEntityMap.find(GlobalIndex);
- assert(I != GlobalPreprocessedEntityMap.end() &&
- "Corrupted global preprocessed entity map");
- ModuleFile *M = I->second;
- unsigned LocalIndex = GlobalIndex - M->BasePreprocessedEntityID;
- return std::make_pair(M, LocalIndex);
- }
- llvm::iterator_range<PreprocessingRecord::iterator>
- ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const {
- if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord())
- return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID,
- Mod.NumPreprocessedEntities);
- return llvm::make_range(PreprocessingRecord::iterator(),
- PreprocessingRecord::iterator());
- }
- llvm::iterator_range<ASTReader::ModuleDeclIterator>
- ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) {
- return llvm::make_range(
- ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls),
- ModuleDeclIterator(this, &Mod,
- Mod.FileSortedDecls + Mod.NumFileSortedDecls));
- }
- SourceRange ASTReader::ReadSkippedRange(unsigned GlobalIndex) {
- auto I = GlobalSkippedRangeMap.find(GlobalIndex);
- assert(I != GlobalSkippedRangeMap.end() &&
- "Corrupted global skipped range map");
- ModuleFile *M = I->second;
- unsigned LocalIndex = GlobalIndex - M->BasePreprocessedSkippedRangeID;
- assert(LocalIndex < M->NumPreprocessedSkippedRanges);
- PPSkippedRange RawRange = M->PreprocessedSkippedRangeOffsets[LocalIndex];
- SourceRange Range(TranslateSourceLocation(*M, RawRange.getBegin()),
- TranslateSourceLocation(*M, RawRange.getEnd()));
- assert(Range.isValid());
- return Range;
- }
- PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) {
- PreprocessedEntityID PPID = Index+1;
- std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);
- ModuleFile &M = *PPInfo.first;
- unsigned LocalIndex = PPInfo.second;
- const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex];
- if (!PP.getPreprocessingRecord()) {
- Error("no preprocessing record");
- return nullptr;
- }
- SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor);
- if (llvm::Error Err =
- M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset)) {
- Error(std::move(Err));
- return nullptr;
- }
- Expected<llvm::BitstreamEntry> MaybeEntry =
- M.PreprocessorDetailCursor.advance(BitstreamCursor::AF_DontPopBlockAtEnd);
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return nullptr;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- if (Entry.Kind != llvm::BitstreamEntry::Record)
- return nullptr;
- // Read the record.
- SourceRange Range(TranslateSourceLocation(M, PPOffs.getBegin()),
- TranslateSourceLocation(M, PPOffs.getEnd()));
- PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
- StringRef Blob;
- RecordData Record;
- Expected<unsigned> MaybeRecType =
- M.PreprocessorDetailCursor.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeRecType) {
- Error(MaybeRecType.takeError());
- return nullptr;
- }
- switch ((PreprocessorDetailRecordTypes)MaybeRecType.get()) {
- case PPD_MACRO_EXPANSION: {
- bool isBuiltin = Record[0];
- IdentifierInfo *Name = nullptr;
- MacroDefinitionRecord *Def = nullptr;
- if (isBuiltin)
- Name = getLocalIdentifier(M, Record[1]);
- else {
- PreprocessedEntityID GlobalID =
- getGlobalPreprocessedEntityID(M, Record[1]);
- Def = cast<MacroDefinitionRecord>(
- PPRec.getLoadedPreprocessedEntity(GlobalID - 1));
- }
- MacroExpansion *ME;
- if (isBuiltin)
- ME = new (PPRec) MacroExpansion(Name, Range);
- else
- ME = new (PPRec) MacroExpansion(Def, Range);
- return ME;
- }
- case PPD_MACRO_DEFINITION: {
- // Decode the identifier info and then check again; if the macro is
- // still defined and associated with the identifier,
- IdentifierInfo *II = getLocalIdentifier(M, Record[0]);
- MacroDefinitionRecord *MD = new (PPRec) MacroDefinitionRecord(II, Range);
- if (DeserializationListener)
- DeserializationListener->MacroDefinitionRead(PPID, MD);
- return MD;
- }
- case PPD_INCLUSION_DIRECTIVE: {
- const char *FullFileNameStart = Blob.data() + Record[0];
- StringRef FullFileName(FullFileNameStart, Blob.size() - Record[0]);
- const FileEntry *File = nullptr;
- if (!FullFileName.empty())
- if (auto FE = PP.getFileManager().getFile(FullFileName))
- File = *FE;
- // FIXME: Stable encoding
- InclusionDirective::InclusionKind Kind
- = static_cast<InclusionDirective::InclusionKind>(Record[2]);
- InclusionDirective *ID
- = new (PPRec) InclusionDirective(PPRec, Kind,
- StringRef(Blob.data(), Record[0]),
- Record[1], Record[3],
- File,
- Range);
- return ID;
- }
- }
- llvm_unreachable("Invalid PreprocessorDetailRecordTypes");
- }
- /// Find the next module that contains entities and return the ID
- /// of the first entry.
- ///
- /// \param SLocMapI points at a chunk of a module that contains no
- /// preprocessed entities or the entities it contains are not the ones we are
- /// looking for.
- PreprocessedEntityID ASTReader::findNextPreprocessedEntity(
- GlobalSLocOffsetMapType::const_iterator SLocMapI) const {
- ++SLocMapI;
- for (GlobalSLocOffsetMapType::const_iterator
- EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) {
- ModuleFile &M = *SLocMapI->second;
- if (M.NumPreprocessedEntities)
- return M.BasePreprocessedEntityID;
- }
- return getTotalNumPreprocessedEntities();
- }
- namespace {
- struct PPEntityComp {
- const ASTReader &Reader;
- ModuleFile &M;
- PPEntityComp(const ASTReader &Reader, ModuleFile &M) : Reader(Reader), M(M) {}
- bool operator()(const PPEntityOffset &L, const PPEntityOffset &R) const {
- SourceLocation LHS = getLoc(L);
- SourceLocation RHS = getLoc(R);
- return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
- }
- bool operator()(const PPEntityOffset &L, SourceLocation RHS) const {
- SourceLocation LHS = getLoc(L);
- return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
- }
- bool operator()(SourceLocation LHS, const PPEntityOffset &R) const {
- SourceLocation RHS = getLoc(R);
- return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
- }
- SourceLocation getLoc(const PPEntityOffset &PPE) const {
- return Reader.TranslateSourceLocation(M, PPE.getBegin());
- }
- };
- } // namespace
- PreprocessedEntityID ASTReader::findPreprocessedEntity(SourceLocation Loc,
- bool EndsAfter) const {
- if (SourceMgr.isLocalSourceLocation(Loc))
- return getTotalNumPreprocessedEntities();
- GlobalSLocOffsetMapType::const_iterator SLocMapI = GlobalSLocOffsetMap.find(
- SourceManager::MaxLoadedOffset - Loc.getOffset() - 1);
- assert(SLocMapI != GlobalSLocOffsetMap.end() &&
- "Corrupted global sloc offset map");
- if (SLocMapI->second->NumPreprocessedEntities == 0)
- return findNextPreprocessedEntity(SLocMapI);
- ModuleFile &M = *SLocMapI->second;
- using pp_iterator = const PPEntityOffset *;
- pp_iterator pp_begin = M.PreprocessedEntityOffsets;
- pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities;
- size_t Count = M.NumPreprocessedEntities;
- size_t Half;
- pp_iterator First = pp_begin;
- pp_iterator PPI;
- if (EndsAfter) {
- PPI = std::upper_bound(pp_begin, pp_end, Loc,
- PPEntityComp(*this, M));
- } else {
- // Do a binary search manually instead of using std::lower_bound because
- // The end locations of entities may be unordered (when a macro expansion
- // is inside another macro argument), but for this case it is not important
- // whether we get the first macro expansion or its containing macro.
- while (Count > 0) {
- Half = Count / 2;
- PPI = First;
- std::advance(PPI, Half);
- if (SourceMgr.isBeforeInTranslationUnit(
- TranslateSourceLocation(M, PPI->getEnd()), Loc)) {
- First = PPI;
- ++First;
- Count = Count - Half - 1;
- } else
- Count = Half;
- }
- }
- if (PPI == pp_end)
- return findNextPreprocessedEntity(SLocMapI);
- return M.BasePreprocessedEntityID + (PPI - pp_begin);
- }
- /// Returns a pair of [Begin, End) indices of preallocated
- /// preprocessed entities that \arg Range encompasses.
- std::pair<unsigned, unsigned>
- ASTReader::findPreprocessedEntitiesInRange(SourceRange Range) {
- if (Range.isInvalid())
- return std::make_pair(0,0);
- assert(!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin()));
- PreprocessedEntityID BeginID =
- findPreprocessedEntity(Range.getBegin(), false);
- PreprocessedEntityID EndID = findPreprocessedEntity(Range.getEnd(), true);
- return std::make_pair(BeginID, EndID);
- }
- /// Optionally returns true or false if the preallocated preprocessed
- /// entity with index \arg Index came from file \arg FID.
- Optional<bool> ASTReader::isPreprocessedEntityInFileID(unsigned Index,
- FileID FID) {
- if (FID.isInvalid())
- return false;
- std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);
- ModuleFile &M = *PPInfo.first;
- unsigned LocalIndex = PPInfo.second;
- const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex];
- SourceLocation Loc = TranslateSourceLocation(M, PPOffs.getBegin());
- if (Loc.isInvalid())
- return false;
- if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID))
- return true;
- else
- return false;
- }
- namespace {
- /// Visitor used to search for information about a header file.
- class HeaderFileInfoVisitor {
- const FileEntry *FE;
- Optional<HeaderFileInfo> HFI;
- public:
- explicit HeaderFileInfoVisitor(const FileEntry *FE) : FE(FE) {}
- bool operator()(ModuleFile &M) {
- HeaderFileInfoLookupTable *Table
- = static_cast<HeaderFileInfoLookupTable *>(M.HeaderFileInfoTable);
- if (!Table)
- return false;
- // Look in the on-disk hash table for an entry for this file name.
- HeaderFileInfoLookupTable::iterator Pos = Table->find(FE);
- if (Pos == Table->end())
- return false;
- HFI = *Pos;
- return true;
- }
- Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; }
- };
- } // namespace
- HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) {
- HeaderFileInfoVisitor Visitor(FE);
- ModuleMgr.visit(Visitor);
- if (Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo())
- return *HFI;
- return HeaderFileInfo();
- }
- void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) {
- using DiagState = DiagnosticsEngine::DiagState;
- SmallVector<DiagState *, 32> DiagStates;
- for (ModuleFile &F : ModuleMgr) {
- unsigned Idx = 0;
- auto &Record = F.PragmaDiagMappings;
- if (Record.empty())
- continue;
- DiagStates.clear();
- auto ReadDiagState =
- [&](const DiagState &BasedOn, SourceLocation Loc,
- bool IncludeNonPragmaStates) -> DiagnosticsEngine::DiagState * {
- unsigned BackrefID = Record[Idx++];
- if (BackrefID != 0)
- return DiagStates[BackrefID - 1];
- // A new DiagState was created here.
- Diag.DiagStates.push_back(BasedOn);
- DiagState *NewState = &Diag.DiagStates.back();
- DiagStates.push_back(NewState);
- unsigned Size = Record[Idx++];
- assert(Idx + Size * 2 <= Record.size() &&
- "Invalid data, not enough diag/map pairs");
- while (Size--) {
- unsigned DiagID = Record[Idx++];
- DiagnosticMapping NewMapping =
- DiagnosticMapping::deserialize(Record[Idx++]);
- if (!NewMapping.isPragma() && !IncludeNonPragmaStates)
- continue;
- DiagnosticMapping &Mapping = NewState->getOrAddMapping(DiagID);
- // If this mapping was specified as a warning but the severity was
- // upgraded due to diagnostic settings, simulate the current diagnostic
- // settings (and use a warning).
- if (NewMapping.wasUpgradedFromWarning() && !Mapping.isErrorOrFatal()) {
- NewMapping.setSeverity(diag::Severity::Warning);
- NewMapping.setUpgradedFromWarning(false);
- }
- Mapping = NewMapping;
- }
- return NewState;
- };
- // Read the first state.
- DiagState *FirstState;
- if (F.Kind == MK_ImplicitModule) {
- // Implicitly-built modules are reused with different diagnostic
- // settings. Use the initial diagnostic state from Diag to simulate this
- // compilation's diagnostic settings.
- FirstState = Diag.DiagStatesByLoc.FirstDiagState;
- DiagStates.push_back(FirstState);
- // Skip the initial diagnostic state from the serialized module.
- assert(Record[1] == 0 &&
- "Invalid data, unexpected backref in initial state");
- Idx = 3 + Record[2] * 2;
- assert(Idx < Record.size() &&
- "Invalid data, not enough state change pairs in initial state");
- } else if (F.isModule()) {
- // For an explicit module, preserve the flags from the module build
- // command line (-w, -Weverything, -Werror, ...) along with any explicit
- // -Wblah flags.
- unsigned Flags = Record[Idx++];
- DiagState Initial;
- Initial.SuppressSystemWarnings = Flags & 1; Flags >>= 1;
- Initial.ErrorsAsFatal = Flags & 1; Flags >>= 1;
- Initial.WarningsAsErrors = Flags & 1; Flags >>= 1;
- Initial.EnableAllWarnings = Flags & 1; Flags >>= 1;
- Initial.IgnoreAllWarnings = Flags & 1; Flags >>= 1;
- Initial.ExtBehavior = (diag::Severity)Flags;
- FirstState = ReadDiagState(Initial, SourceLocation(), true);
- assert(F.OriginalSourceFileID.isValid());
- // Set up the root buffer of the module to start with the initial
- // diagnostic state of the module itself, to cover files that contain no
- // explicit transitions (for which we did not serialize anything).
- Diag.DiagStatesByLoc.Files[F.OriginalSourceFileID]
- .StateTransitions.push_back({FirstState, 0});
- } else {
- // For prefix ASTs, start with whatever the user configured on the
- // command line.
- Idx++; // Skip flags.
- FirstState = ReadDiagState(*Diag.DiagStatesByLoc.CurDiagState,
- SourceLocation(), false);
- }
- // Read the state transitions.
- unsigned NumLocations = Record[Idx++];
- while (NumLocations--) {
- assert(Idx < Record.size() &&
- "Invalid data, missing pragma diagnostic states");
- SourceLocation Loc = ReadSourceLocation(F, Record[Idx++]);
- auto IDAndOffset = SourceMgr.getDecomposedLoc(Loc);
- assert(IDAndOffset.first.isValid() && "invalid FileID for transition");
- assert(IDAndOffset.second == 0 && "not a start location for a FileID");
- unsigned Transitions = Record[Idx++];
- // Note that we don't need to set up Parent/ParentOffset here, because
- // we won't be changing the diagnostic state within imported FileIDs
- // (other than perhaps appending to the main source file, which has no
- // parent).
- auto &F = Diag.DiagStatesByLoc.Files[IDAndOffset.first];
- F.StateTransitions.reserve(F.StateTransitions.size() + Transitions);
- for (unsigned I = 0; I != Transitions; ++I) {
- unsigned Offset = Record[Idx++];
- auto *State =
- ReadDiagState(*FirstState, Loc.getLocWithOffset(Offset), false);
- F.StateTransitions.push_back({State, Offset});
- }
- }
- // Read the final state.
- assert(Idx < Record.size() &&
- "Invalid data, missing final pragma diagnostic state");
- SourceLocation CurStateLoc =
- ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]);
- auto *CurState = ReadDiagState(*FirstState, CurStateLoc, false);
- if (!F.isModule()) {
- Diag.DiagStatesByLoc.CurDiagState = CurState;
- Diag.DiagStatesByLoc.CurDiagStateLoc = CurStateLoc;
- // Preserve the property that the imaginary root file describes the
- // current state.
- FileID NullFile;
- auto &T = Diag.DiagStatesByLoc.Files[NullFile].StateTransitions;
- if (T.empty())
- T.push_back({CurState, 0});
- else
- T[0].State = CurState;
- }
- // Don't try to read these mappings again.
- Record.clear();
- }
- }
- /// Get the correct cursor and offset for loading a type.
- ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) {
- GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index);
- assert(I != GlobalTypeMap.end() && "Corrupted global type map");
- ModuleFile *M = I->second;
- return RecordLocation(M, M->TypeOffsets[Index - M->BaseTypeIndex]);
- }
- /// Read and return the type with the given index..
- ///
- /// The index is the type ID, shifted and minus the number of predefs. This
- /// routine actually reads the record corresponding to the type at the given
- /// location. It is a helper routine for GetType, which deals with reading type
- /// IDs.
- QualType ASTReader::readTypeRecord(unsigned Index) {
- assert(ContextObj && "reading type with no AST context");
- ASTContext &Context = *ContextObj;
- RecordLocation Loc = TypeCursorForIndex(Index);
- BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor;
- // Keep track of where we are in the stream, then jump back there
- // after reading this type.
- SavedStreamPosition SavedPosition(DeclsCursor);
- ReadingKindTracker ReadingKind(Read_Type, *this);
- // Note that we are loading a type record.
- Deserializing AType(this);
- unsigned Idx = 0;
- if (llvm::Error Err = DeclsCursor.JumpToBit(Loc.Offset)) {
- Error(std::move(Err));
- return QualType();
- }
- RecordData Record;
- Expected<unsigned> MaybeCode = DeclsCursor.ReadCode();
- if (!MaybeCode) {
- Error(MaybeCode.takeError());
- return QualType();
- }
- unsigned Code = MaybeCode.get();
- Expected<unsigned> MaybeTypeCode = DeclsCursor.readRecord(Code, Record);
- if (!MaybeTypeCode) {
- Error(MaybeTypeCode.takeError());
- return QualType();
- }
- switch ((TypeCode)MaybeTypeCode.get()) {
- case TYPE_EXT_QUAL: {
- if (Record.size() != 2) {
- Error("Incorrect encoding of extended qualifier type");
- return QualType();
- }
- QualType Base = readType(*Loc.F, Record, Idx);
- Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[Idx++]);
- return Context.getQualifiedType(Base, Quals);
- }
- case TYPE_COMPLEX: {
- if (Record.size() != 1) {
- Error("Incorrect encoding of complex type");
- return QualType();
- }
- QualType ElemType = readType(*Loc.F, Record, Idx);
- return Context.getComplexType(ElemType);
- }
- case TYPE_POINTER: {
- if (Record.size() != 1) {
- Error("Incorrect encoding of pointer type");
- return QualType();
- }
- QualType PointeeType = readType(*Loc.F, Record, Idx);
- return Context.getPointerType(PointeeType);
- }
- case TYPE_DECAYED: {
- if (Record.size() != 1) {
- Error("Incorrect encoding of decayed type");
- return QualType();
- }
- QualType OriginalType = readType(*Loc.F, Record, Idx);
- QualType DT = Context.getAdjustedParameterType(OriginalType);
- if (!isa<DecayedType>(DT))
- Error("Decayed type does not decay");
- return DT;
- }
- case TYPE_ADJUSTED: {
- if (Record.size() != 2) {
- Error("Incorrect encoding of adjusted type");
- return QualType();
- }
- QualType OriginalTy = readType(*Loc.F, Record, Idx);
- QualType AdjustedTy = readType(*Loc.F, Record, Idx);
- return Context.getAdjustedType(OriginalTy, AdjustedTy);
- }
- case TYPE_BLOCK_POINTER: {
- if (Record.size() != 1) {
- Error("Incorrect encoding of block pointer type");
- return QualType();
- }
- QualType PointeeType = readType(*Loc.F, Record, Idx);
- return Context.getBlockPointerType(PointeeType);
- }
- case TYPE_LVALUE_REFERENCE: {
- if (Record.size() != 2) {
- Error("Incorrect encoding of lvalue reference type");
- return QualType();
- }
- QualType PointeeType = readType(*Loc.F, Record, Idx);
- return Context.getLValueReferenceType(PointeeType, Record[1]);
- }
- case TYPE_RVALUE_REFERENCE: {
- if (Record.size() != 1) {
- Error("Incorrect encoding of rvalue reference type");
- return QualType();
- }
- QualType PointeeType = readType(*Loc.F, Record, Idx);
- return Context.getRValueReferenceType(PointeeType);
- }
- case TYPE_MEMBER_POINTER: {
- if (Record.size() != 2) {
- Error("Incorrect encoding of member pointer type");
- return QualType();
- }
- QualType PointeeType = readType(*Loc.F, Record, Idx);
- QualType ClassType = readType(*Loc.F, Record, Idx);
- if (PointeeType.isNull() || ClassType.isNull())
- return QualType();
- return Context.getMemberPointerType(PointeeType, ClassType.getTypePtr());
- }
- case TYPE_CONSTANT_ARRAY: {
- QualType ElementType = readType(*Loc.F, Record, Idx);
- ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
- unsigned IndexTypeQuals = Record[2];
- unsigned Idx = 3;
- llvm::APInt Size = ReadAPInt(Record, Idx);
- Expr *SizeExpr = ReadExpr(*Loc.F);
- return Context.getConstantArrayType(ElementType, Size, SizeExpr,
- ASM, IndexTypeQuals);
- }
- case TYPE_INCOMPLETE_ARRAY: {
- QualType ElementType = readType(*Loc.F, Record, Idx);
- ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
- unsigned IndexTypeQuals = Record[2];
- return Context.getIncompleteArrayType(ElementType, ASM, IndexTypeQuals);
- }
- case TYPE_VARIABLE_ARRAY: {
- QualType ElementType = readType(*Loc.F, Record, Idx);
- ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
- unsigned IndexTypeQuals = Record[2];
- SourceLocation LBLoc = ReadSourceLocation(*Loc.F, Record[3]);
- SourceLocation RBLoc = ReadSourceLocation(*Loc.F, Record[4]);
- return Context.getVariableArrayType(ElementType, ReadExpr(*Loc.F),
- ASM, IndexTypeQuals,
- SourceRange(LBLoc, RBLoc));
- }
- case TYPE_VECTOR: {
- if (Record.size() != 3) {
- Error("incorrect encoding of vector type in AST file");
- return QualType();
- }
- QualType ElementType = readType(*Loc.F, Record, Idx);
- unsigned NumElements = Record[1];
- unsigned VecKind = Record[2];
- return Context.getVectorType(ElementType, NumElements,
- (VectorType::VectorKind)VecKind);
- }
- case TYPE_EXT_VECTOR: {
- if (Record.size() != 3) {
- Error("incorrect encoding of extended vector type in AST file");
- return QualType();
- }
- QualType ElementType = readType(*Loc.F, Record, Idx);
- unsigned NumElements = Record[1];
- return Context.getExtVectorType(ElementType, NumElements);
- }
- case TYPE_FUNCTION_NO_PROTO: {
- if (Record.size() != 8) {
- Error("incorrect encoding of no-proto function type");
- return QualType();
- }
- QualType ResultType = readType(*Loc.F, Record, Idx);
- FunctionType::ExtInfo Info(Record[1], Record[2], Record[3],
- (CallingConv)Record[4], Record[5], Record[6],
- Record[7]);
- return Context.getFunctionNoProtoType(ResultType, Info);
- }
- case TYPE_FUNCTION_PROTO: {
- QualType ResultType = readType(*Loc.F, Record, Idx);
- FunctionProtoType::ExtProtoInfo EPI;
- EPI.ExtInfo = FunctionType::ExtInfo(/*noreturn*/ Record[1],
- /*hasregparm*/ Record[2],
- /*regparm*/ Record[3],
- static_cast<CallingConv>(Record[4]),
- /*produces*/ Record[5],
- /*nocallersavedregs*/ Record[6],
- /*nocfcheck*/ Record[7]);
- unsigned Idx = 8;
- EPI.Variadic = Record[Idx++];
- EPI.HasTrailingReturn = Record[Idx++];
- EPI.TypeQuals = Qualifiers::fromOpaqueValue(Record[Idx++]);
- EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]);
- SmallVector<QualType, 8> ExceptionStorage;
- readExceptionSpec(*Loc.F, ExceptionStorage, EPI.ExceptionSpec, Record, Idx);
- unsigned NumParams = Record[Idx++];
- SmallVector<QualType, 16> ParamTypes;
- for (unsigned I = 0; I != NumParams; ++I)
- ParamTypes.push_back(readType(*Loc.F, Record, Idx));
- SmallVector<FunctionProtoType::ExtParameterInfo, 4> ExtParameterInfos;
- if (Idx != Record.size()) {
- for (unsigned I = 0; I != NumParams; ++I)
- ExtParameterInfos.push_back(
- FunctionProtoType::ExtParameterInfo
- ::getFromOpaqueValue(Record[Idx++]));
- EPI.ExtParameterInfos = ExtParameterInfos.data();
- }
- assert(Idx == Record.size());
- return Context.getFunctionType(ResultType, ParamTypes, EPI);
- }
- case TYPE_UNRESOLVED_USING: {
- unsigned Idx = 0;
- return Context.getTypeDeclType(
- ReadDeclAs<UnresolvedUsingTypenameDecl>(*Loc.F, Record, Idx));
- }
- case TYPE_TYPEDEF: {
- if (Record.size() != 2) {
- Error("incorrect encoding of typedef type");
- return QualType();
- }
- unsigned Idx = 0;
- TypedefNameDecl *Decl = ReadDeclAs<TypedefNameDecl>(*Loc.F, Record, Idx);
- QualType Canonical = readType(*Loc.F, Record, Idx);
- if (!Canonical.isNull())
- Canonical = Context.getCanonicalType(Canonical);
- return Context.getTypedefType(Decl, Canonical);
- }
- case TYPE_TYPEOF_EXPR:
- return Context.getTypeOfExprType(ReadExpr(*Loc.F));
- case TYPE_TYPEOF: {
- if (Record.size() != 1) {
- Error("incorrect encoding of typeof(type) in AST file");
- return QualType();
- }
- QualType UnderlyingType = readType(*Loc.F, Record, Idx);
- return Context.getTypeOfType(UnderlyingType);
- }
- case TYPE_DECLTYPE: {
- QualType UnderlyingType = readType(*Loc.F, Record, Idx);
- return Context.getDecltypeType(ReadExpr(*Loc.F), UnderlyingType);
- }
- case TYPE_UNARY_TRANSFORM: {
- QualType BaseType = readType(*Loc.F, Record, Idx);
- QualType UnderlyingType = readType(*Loc.F, Record, Idx);
- UnaryTransformType::UTTKind UKind = (UnaryTransformType::UTTKind)Record[2];
- return Context.getUnaryTransformType(BaseType, UnderlyingType, UKind);
- }
- case TYPE_AUTO: {
- QualType Deduced = readType(*Loc.F, Record, Idx);
- AutoTypeKeyword Keyword = (AutoTypeKeyword)Record[Idx++];
- bool IsDependent = false, IsPack = false;
- if (Deduced.isNull()) {
- IsDependent = Record[Idx] > 0;
- IsPack = Record[Idx] > 1;
- ++Idx;
- }
- return Context.getAutoType(Deduced, Keyword, IsDependent, IsPack);
- }
- case TYPE_DEDUCED_TEMPLATE_SPECIALIZATION: {
- TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx);
- QualType Deduced = readType(*Loc.F, Record, Idx);
- bool IsDependent = Deduced.isNull() ? Record[Idx++] : false;
- return Context.getDeducedTemplateSpecializationType(Name, Deduced,
- IsDependent);
- }
- case TYPE_RECORD: {
- if (Record.size() != 2) {
- Error("incorrect encoding of record type");
- return QualType();
- }
- unsigned Idx = 0;
- bool IsDependent = Record[Idx++];
- RecordDecl *RD = ReadDeclAs<RecordDecl>(*Loc.F, Record, Idx);
- RD = cast_or_null<RecordDecl>(RD->getCanonicalDecl());
- QualType T = Context.getRecordType(RD);
- const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
- return T;
- }
- case TYPE_ENUM: {
- if (Record.size() != 2) {
- Error("incorrect encoding of enum type");
- return QualType();
- }
- unsigned Idx = 0;
- bool IsDependent = Record[Idx++];
- QualType T
- = Context.getEnumType(ReadDeclAs<EnumDecl>(*Loc.F, Record, Idx));
- const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
- return T;
- }
- case TYPE_ATTRIBUTED: {
- if (Record.size() != 3) {
- Error("incorrect encoding of attributed type");
- return QualType();
- }
- QualType modifiedType = readType(*Loc.F, Record, Idx);
- QualType equivalentType = readType(*Loc.F, Record, Idx);
- AttributedType::Kind kind = static_cast<AttributedType::Kind>(Record[2]);
- return Context.getAttributedType(kind, modifiedType, equivalentType);
- }
- case TYPE_PAREN: {
- if (Record.size() != 1) {
- Error("incorrect encoding of paren type");
- return QualType();
- }
- QualType InnerType = readType(*Loc.F, Record, Idx);
- return Context.getParenType(InnerType);
- }
- case TYPE_MACRO_QUALIFIED: {
- if (Record.size() != 2) {
- Error("incorrect encoding of macro defined type");
- return QualType();
- }
- QualType UnderlyingTy = readType(*Loc.F, Record, Idx);
- IdentifierInfo *MacroII = GetIdentifierInfo(*Loc.F, Record, Idx);
- return Context.getMacroQualifiedType(UnderlyingTy, MacroII);
- }
- case TYPE_PACK_EXPANSION: {
- if (Record.size() != 2) {
- Error("incorrect encoding of pack expansion type");
- return QualType();
- }
- QualType Pattern = readType(*Loc.F, Record, Idx);
- if (Pattern.isNull())
- return QualType();
- Optional<unsigned> NumExpansions;
- if (Record[1])
- NumExpansions = Record[1] - 1;
- return Context.getPackExpansionType(Pattern, NumExpansions);
- }
- case TYPE_ELABORATED: {
- unsigned Idx = 0;
- ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
- NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
- QualType NamedType = readType(*Loc.F, Record, Idx);
- TagDecl *OwnedTagDecl = ReadDeclAs<TagDecl>(*Loc.F, Record, Idx);
- return Context.getElaboratedType(Keyword, NNS, NamedType, OwnedTagDecl);
- }
- case TYPE_OBJC_INTERFACE: {
- unsigned Idx = 0;
- ObjCInterfaceDecl *ItfD
- = ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx);
- return Context.getObjCInterfaceType(ItfD->getCanonicalDecl());
- }
- case TYPE_OBJC_TYPE_PARAM: {
- unsigned Idx = 0;
- ObjCTypeParamDecl *Decl
- = ReadDeclAs<ObjCTypeParamDecl>(*Loc.F, Record, Idx);
- unsigned NumProtos = Record[Idx++];
- SmallVector<ObjCProtocolDecl*, 4> Protos;
- for (unsigned I = 0; I != NumProtos; ++I)
- Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx));
- return Context.getObjCTypeParamType(Decl, Protos);
- }
- case TYPE_OBJC_OBJECT: {
- unsigned Idx = 0;
- QualType Base = readType(*Loc.F, Record, Idx);
- unsigned NumTypeArgs = Record[Idx++];
- SmallVector<QualType, 4> TypeArgs;
- for (unsigned I = 0; I != NumTypeArgs; ++I)
- TypeArgs.push_back(readType(*Loc.F, Record, Idx));
- unsigned NumProtos = Record[Idx++];
- SmallVector<ObjCProtocolDecl*, 4> Protos;
- for (unsigned I = 0; I != NumProtos; ++I)
- Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx));
- bool IsKindOf = Record[Idx++];
- return Context.getObjCObjectType(Base, TypeArgs, Protos, IsKindOf);
- }
- case TYPE_OBJC_OBJECT_POINTER: {
- unsigned Idx = 0;
- QualType Pointee = readType(*Loc.F, Record, Idx);
- return Context.getObjCObjectPointerType(Pointee);
- }
- case TYPE_SUBST_TEMPLATE_TYPE_PARM: {
- unsigned Idx = 0;
- QualType Parm = readType(*Loc.F, Record, Idx);
- QualType Replacement = readType(*Loc.F, Record, Idx);
- return Context.getSubstTemplateTypeParmType(
- cast<TemplateTypeParmType>(Parm),
- Context.getCanonicalType(Replacement));
- }
- case TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK: {
- unsigned Idx = 0;
- QualType Parm = readType(*Loc.F, Record, Idx);
- TemplateArgument ArgPack = ReadTemplateArgument(*Loc.F, Record, Idx);
- return Context.getSubstTemplateTypeParmPackType(
- cast<TemplateTypeParmType>(Parm),
- ArgPack);
- }
- case TYPE_INJECTED_CLASS_NAME: {
- CXXRecordDecl *D = ReadDeclAs<CXXRecordDecl>(*Loc.F, Record, Idx);
- QualType TST = readType(*Loc.F, Record, Idx); // probably derivable
- // FIXME: ASTContext::getInjectedClassNameType is not currently suitable
- // for AST reading, too much interdependencies.
- const Type *T = nullptr;
- for (auto *DI = D; DI; DI = DI->getPreviousDecl()) {
- if (const Type *Existing = DI->getTypeForDecl()) {
- T = Existing;
- break;
- }
- }
- if (!T) {
- T = new (Context, TypeAlignment) InjectedClassNameType(D, TST);
- for (auto *DI = D; DI; DI = DI->getPreviousDecl())
- DI->setTypeForDecl(T);
- }
- return QualType(T, 0);
- }
- case TYPE_TEMPLATE_TYPE_PARM: {
- unsigned Idx = 0;
- unsigned Depth = Record[Idx++];
- unsigned Index = Record[Idx++];
- bool Pack = Record[Idx++];
- TemplateTypeParmDecl *D
- = ReadDeclAs<TemplateTypeParmDecl>(*Loc.F, Record, Idx);
- return Context.getTemplateTypeParmType(Depth, Index, Pack, D);
- }
- case TYPE_DEPENDENT_NAME: {
- unsigned Idx = 0;
- ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
- NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
- const IdentifierInfo *Name = GetIdentifierInfo(*Loc.F, Record, Idx);
- QualType Canon = readType(*Loc.F, Record, Idx);
- if (!Canon.isNull())
- Canon = Context.getCanonicalType(Canon);
- return Context.getDependentNameType(Keyword, NNS, Name, Canon);
- }
- case TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: {
- unsigned Idx = 0;
- ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
- NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
- const IdentifierInfo *Name = GetIdentifierInfo(*Loc.F, Record, Idx);
- unsigned NumArgs = Record[Idx++];
- SmallVector<TemplateArgument, 8> Args;
- Args.reserve(NumArgs);
- while (NumArgs--)
- Args.push_back(ReadTemplateArgument(*Loc.F, Record, Idx));
- return Context.getDependentTemplateSpecializationType(Keyword, NNS, Name,
- Args);
- }
- case TYPE_DEPENDENT_SIZED_ARRAY: {
- unsigned Idx = 0;
- // ArrayType
- QualType ElementType = readType(*Loc.F, Record, Idx);
- ArrayType::ArraySizeModifier ASM
- = (ArrayType::ArraySizeModifier)Record[Idx++];
- unsigned IndexTypeQuals = Record[Idx++];
- // DependentSizedArrayType
- Expr *NumElts = ReadExpr(*Loc.F);
- SourceRange Brackets = ReadSourceRange(*Loc.F, Record, Idx);
- return Context.getDependentSizedArrayType(ElementType, NumElts, ASM,
- IndexTypeQuals, Brackets);
- }
- case TYPE_TEMPLATE_SPECIALIZATION: {
- unsigned Idx = 0;
- bool IsDependent = Record[Idx++];
- TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx);
- SmallVector<TemplateArgument, 8> Args;
- ReadTemplateArgumentList(Args, *Loc.F, Record, Idx);
- QualType Underlying = readType(*Loc.F, Record, Idx);
- QualType T;
- if (Underlying.isNull())
- T = Context.getCanonicalTemplateSpecializationType(Name, Args);
- else
- T = Context.getTemplateSpecializationType(Name, Args, Underlying);
- const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
- return T;
- }
- case TYPE_ATOMIC: {
- if (Record.size() != 1) {
- Error("Incorrect encoding of atomic type");
- return QualType();
- }
- QualType ValueType = readType(*Loc.F, Record, Idx);
- return Context.getAtomicType(ValueType);
- }
- case TYPE_PIPE: {
- if (Record.size() != 2) {
- Error("Incorrect encoding of pipe type");
- return QualType();
- }
- // Reading the pipe element type.
- QualType ElementType = readType(*Loc.F, Record, Idx);
- unsigned ReadOnly = Record[1];
- return Context.getPipeType(ElementType, ReadOnly);
- }
- case TYPE_DEPENDENT_SIZED_VECTOR: {
- unsigned Idx = 0;
- QualType ElementType = readType(*Loc.F, Record, Idx);
- Expr *SizeExpr = ReadExpr(*Loc.F);
- SourceLocation AttrLoc = ReadSourceLocation(*Loc.F, Record, Idx);
- unsigned VecKind = Record[Idx];
- return Context.getDependentVectorType(ElementType, SizeExpr, AttrLoc,
- (VectorType::VectorKind)VecKind);
- }
- case TYPE_DEPENDENT_SIZED_EXT_VECTOR: {
- unsigned Idx = 0;
- // DependentSizedExtVectorType
- QualType ElementType = readType(*Loc.F, Record, Idx);
- Expr *SizeExpr = ReadExpr(*Loc.F);
- SourceLocation AttrLoc = ReadSourceLocation(*Loc.F, Record, Idx);
- return Context.getDependentSizedExtVectorType(ElementType, SizeExpr,
- AttrLoc);
- }
- case TYPE_DEPENDENT_ADDRESS_SPACE: {
- unsigned Idx = 0;
- // DependentAddressSpaceType
- QualType PointeeType = readType(*Loc.F, Record, Idx);
- Expr *AddrSpaceExpr = ReadExpr(*Loc.F);
- SourceLocation AttrLoc = ReadSourceLocation(*Loc.F, Record, Idx);
- return Context.getDependentAddressSpaceType(PointeeType, AddrSpaceExpr,
- AttrLoc);
- }
- }
- llvm_unreachable("Invalid TypeCode!");
- }
- void ASTReader::readExceptionSpec(ModuleFile &ModuleFile,
- SmallVectorImpl<QualType> &Exceptions,
- FunctionProtoType::ExceptionSpecInfo &ESI,
- const RecordData &Record, unsigned &Idx) {
- ExceptionSpecificationType EST =
- static_cast<ExceptionSpecificationType>(Record[Idx++]);
- ESI.Type = EST;
- if (EST == EST_Dynamic) {
- for (unsigned I = 0, N = Record[Idx++]; I != N; ++I)
- Exceptions.push_back(readType(ModuleFile, Record, Idx));
- ESI.Exceptions = Exceptions;
- } else if (isComputedNoexcept(EST)) {
- ESI.NoexceptExpr = ReadExpr(ModuleFile);
- } else if (EST == EST_Uninstantiated) {
- ESI.SourceDecl = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx);
- ESI.SourceTemplate = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx);
- } else if (EST == EST_Unevaluated) {
- ESI.SourceDecl = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx);
- }
- }
- namespace clang {
- class TypeLocReader : public TypeLocVisitor<TypeLocReader> {
- ModuleFile *F;
- ASTReader *Reader;
- const ASTReader::RecordData &Record;
- unsigned &Idx;
- SourceLocation ReadSourceLocation() {
- return Reader->ReadSourceLocation(*F, Record, Idx);
- }
- TypeSourceInfo *GetTypeSourceInfo() {
- return Reader->GetTypeSourceInfo(*F, Record, Idx);
- }
- NestedNameSpecifierLoc ReadNestedNameSpecifierLoc() {
- return Reader->ReadNestedNameSpecifierLoc(*F, Record, Idx);
- }
- Attr *ReadAttr() {
- return Reader->ReadAttr(*F, Record, Idx);
- }
- public:
- TypeLocReader(ModuleFile &F, ASTReader &Reader,
- const ASTReader::RecordData &Record, unsigned &Idx)
- : F(&F), Reader(&Reader), Record(Record), Idx(Idx) {}
- // We want compile-time assurance that we've enumerated all of
- // these, so unfortunately we have to declare them first, then
- // define them out-of-line.
- #define ABSTRACT_TYPELOC(CLASS, PARENT)
- #define TYPELOC(CLASS, PARENT) \
- void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
- #include "clang/AST/TypeLocNodes.def"
- void VisitFunctionTypeLoc(FunctionTypeLoc);
- void VisitArrayTypeLoc(ArrayTypeLoc);
- };
- } // namespace clang
- void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
- // nothing to do
- }
- void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
- TL.setBuiltinLoc(ReadSourceLocation());
- if (TL.needsExtraLocalData()) {
- TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++]));
- TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++]));
- TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++]));
- TL.setModeAttr(Record[Idx++]);
- }
- }
- void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) {
- TL.setStarLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitDecayedTypeLoc(DecayedTypeLoc TL) {
- // nothing to do
- }
- void TypeLocReader::VisitAdjustedTypeLoc(AdjustedTypeLoc TL) {
- // nothing to do
- }
- void TypeLocReader::VisitMacroQualifiedTypeLoc(MacroQualifiedTypeLoc TL) {
- TL.setExpansionLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
- TL.setCaretLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
- TL.setAmpLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
- TL.setAmpAmpLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
- TL.setStarLoc(ReadSourceLocation());
- TL.setClassTInfo(GetTypeSourceInfo());
- }
- void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) {
- TL.setLBracketLoc(ReadSourceLocation());
- TL.setRBracketLoc(ReadSourceLocation());
- if (Record[Idx++])
- TL.setSizeExpr(Reader->ReadExpr(*F));
- else
- TL.setSizeExpr(nullptr);
- }
- void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
- VisitArrayTypeLoc(TL);
- }
- void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
- VisitArrayTypeLoc(TL);
- }
- void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
- VisitArrayTypeLoc(TL);
- }
- void TypeLocReader::VisitDependentSizedArrayTypeLoc(
- DependentSizedArrayTypeLoc TL) {
- VisitArrayTypeLoc(TL);
- }
- void TypeLocReader::VisitDependentAddressSpaceTypeLoc(
- DependentAddressSpaceTypeLoc TL) {
- TL.setAttrNameLoc(ReadSourceLocation());
- SourceRange range;
- range.setBegin(ReadSourceLocation());
- range.setEnd(ReadSourceLocation());
- TL.setAttrOperandParensRange(range);
- TL.setAttrExprOperand(Reader->ReadExpr(*F));
- }
- void TypeLocReader::VisitDependentSizedExtVectorTypeLoc(
- DependentSizedExtVectorTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitDependentVectorTypeLoc(
- DependentVectorTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
- TL.setLocalRangeBegin(ReadSourceLocation());
- TL.setLParenLoc(ReadSourceLocation());
- TL.setRParenLoc(ReadSourceLocation());
- TL.setExceptionSpecRange(SourceRange(Reader->ReadSourceLocation(*F, Record, Idx),
- Reader->ReadSourceLocation(*F, Record, Idx)));
- TL.setLocalRangeEnd(ReadSourceLocation());
- for (unsigned i = 0, e = TL.getNumParams(); i != e; ++i) {
- TL.setParam(i, Reader->ReadDeclAs<ParmVarDecl>(*F, Record, Idx));
- }
- }
- void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
- VisitFunctionTypeLoc(TL);
- }
- void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
- VisitFunctionTypeLoc(TL);
- }
- void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
- TL.setTypeofLoc(ReadSourceLocation());
- TL.setLParenLoc(ReadSourceLocation());
- TL.setRParenLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
- TL.setTypeofLoc(ReadSourceLocation());
- TL.setLParenLoc(ReadSourceLocation());
- TL.setRParenLoc(ReadSourceLocation());
- TL.setUnderlyingTInfo(GetTypeSourceInfo());
- }
- void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) {
- TL.setKWLoc(ReadSourceLocation());
- TL.setLParenLoc(ReadSourceLocation());
- TL.setRParenLoc(ReadSourceLocation());
- TL.setUnderlyingTInfo(GetTypeSourceInfo());
- }
- void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitDeducedTemplateSpecializationTypeLoc(
- DeducedTemplateSpecializationTypeLoc TL) {
- TL.setTemplateNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
- TL.setAttr(ReadAttr());
- }
- void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc(
- SubstTemplateTypeParmTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc(
- SubstTemplateTypeParmPackTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitTemplateSpecializationTypeLoc(
- TemplateSpecializationTypeLoc TL) {
- TL.setTemplateKeywordLoc(ReadSourceLocation());
- TL.setTemplateNameLoc(ReadSourceLocation());
- TL.setLAngleLoc(ReadSourceLocation());
- TL.setRAngleLoc(ReadSourceLocation());
- for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
- TL.setArgLocInfo(
- i,
- Reader->GetTemplateArgumentLocInfo(
- *F, TL.getTypePtr()->getArg(i).getKind(), Record, Idx));
- }
- void TypeLocReader::VisitParenTypeLoc(ParenTypeLoc TL) {
- TL.setLParenLoc(ReadSourceLocation());
- TL.setRParenLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
- TL.setElaboratedKeywordLoc(ReadSourceLocation());
- TL.setQualifierLoc(ReadNestedNameSpecifierLoc());
- }
- void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
- TL.setElaboratedKeywordLoc(ReadSourceLocation());
- TL.setQualifierLoc(ReadNestedNameSpecifierLoc());
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc(
- DependentTemplateSpecializationTypeLoc TL) {
- TL.setElaboratedKeywordLoc(ReadSourceLocation());
- TL.setQualifierLoc(ReadNestedNameSpecifierLoc());
- TL.setTemplateKeywordLoc(ReadSourceLocation());
- TL.setTemplateNameLoc(ReadSourceLocation());
- TL.setLAngleLoc(ReadSourceLocation());
- TL.setRAngleLoc(ReadSourceLocation());
- for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
- TL.setArgLocInfo(
- I,
- Reader->GetTemplateArgumentLocInfo(
- *F, TL.getTypePtr()->getArg(I).getKind(), Record, Idx));
- }
- void TypeLocReader::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) {
- TL.setEllipsisLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
- TL.setNameLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitObjCTypeParamTypeLoc(ObjCTypeParamTypeLoc TL) {
- if (TL.getNumProtocols()) {
- TL.setProtocolLAngleLoc(ReadSourceLocation());
- TL.setProtocolRAngleLoc(ReadSourceLocation());
- }
- for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
- TL.setProtocolLoc(i, ReadSourceLocation());
- }
- void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
- TL.setHasBaseTypeAsWritten(Record[Idx++]);
- TL.setTypeArgsLAngleLoc(ReadSourceLocation());
- TL.setTypeArgsRAngleLoc(ReadSourceLocation());
- for (unsigned i = 0, e = TL.getNumTypeArgs(); i != e; ++i)
- TL.setTypeArgTInfo(i, GetTypeSourceInfo());
- TL.setProtocolLAngleLoc(ReadSourceLocation());
- TL.setProtocolRAngleLoc(ReadSourceLocation());
- for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
- TL.setProtocolLoc(i, ReadSourceLocation());
- }
- void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
- TL.setStarLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
- TL.setKWLoc(ReadSourceLocation());
- TL.setLParenLoc(ReadSourceLocation());
- TL.setRParenLoc(ReadSourceLocation());
- }
- void TypeLocReader::VisitPipeTypeLoc(PipeTypeLoc TL) {
- TL.setKWLoc(ReadSourceLocation());
- }
- void ASTReader::ReadTypeLoc(ModuleFile &F, const ASTReader::RecordData &Record,
- unsigned &Idx, TypeLoc TL) {
- TypeLocReader TLR(F, *this, Record, Idx);
- for (; !TL.isNull(); TL = TL.getNextTypeLoc())
- TLR.Visit(TL);
- }
- TypeSourceInfo *
- ASTReader::GetTypeSourceInfo(ModuleFile &F, const ASTReader::RecordData &Record,
- unsigned &Idx) {
- QualType InfoTy = readType(F, Record, Idx);
- if (InfoTy.isNull())
- return nullptr;
- TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy);
- ReadTypeLoc(F, Record, Idx, TInfo->getTypeLoc());
- return TInfo;
- }
- QualType ASTReader::GetType(TypeID ID) {
- assert(ContextObj && "reading type with no AST context");
- ASTContext &Context = *ContextObj;
- unsigned FastQuals = ID & Qualifiers::FastMask;
- unsigned Index = ID >> Qualifiers::FastWidth;
- if (Index < NUM_PREDEF_TYPE_IDS) {
- QualType T;
- switch ((PredefinedTypeIDs)Index) {
- case PREDEF_TYPE_NULL_ID:
- return QualType();
- case PREDEF_TYPE_VOID_ID:
- T = Context.VoidTy;
- break;
- case PREDEF_TYPE_BOOL_ID:
- T = Context.BoolTy;
- break;
- case PREDEF_TYPE_CHAR_U_ID:
- case PREDEF_TYPE_CHAR_S_ID:
- // FIXME: Check that the signedness of CharTy is correct!
- T = Context.CharTy;
- break;
- case PREDEF_TYPE_UCHAR_ID:
- T = Context.UnsignedCharTy;
- break;
- case PREDEF_TYPE_USHORT_ID:
- T = Context.UnsignedShortTy;
- break;
- case PREDEF_TYPE_UINT_ID:
- T = Context.UnsignedIntTy;
- break;
- case PREDEF_TYPE_ULONG_ID:
- T = Context.UnsignedLongTy;
- break;
- case PREDEF_TYPE_ULONGLONG_ID:
- T = Context.UnsignedLongLongTy;
- break;
- case PREDEF_TYPE_UINT128_ID:
- T = Context.UnsignedInt128Ty;
- break;
- case PREDEF_TYPE_SCHAR_ID:
- T = Context.SignedCharTy;
- break;
- case PREDEF_TYPE_WCHAR_ID:
- T = Context.WCharTy;
- break;
- case PREDEF_TYPE_SHORT_ID:
- T = Context.ShortTy;
- break;
- case PREDEF_TYPE_INT_ID:
- T = Context.IntTy;
- break;
- case PREDEF_TYPE_LONG_ID:
- T = Context.LongTy;
- break;
- case PREDEF_TYPE_LONGLONG_ID:
- T = Context.LongLongTy;
- break;
- case PREDEF_TYPE_INT128_ID:
- T = Context.Int128Ty;
- break;
- case PREDEF_TYPE_HALF_ID:
- T = Context.HalfTy;
- break;
- case PREDEF_TYPE_FLOAT_ID:
- T = Context.FloatTy;
- break;
- case PREDEF_TYPE_DOUBLE_ID:
- T = Context.DoubleTy;
- break;
- case PREDEF_TYPE_LONGDOUBLE_ID:
- T = Context.LongDoubleTy;
- break;
- case PREDEF_TYPE_SHORT_ACCUM_ID:
- T = Context.ShortAccumTy;
- break;
- case PREDEF_TYPE_ACCUM_ID:
- T = Context.AccumTy;
- break;
- case PREDEF_TYPE_LONG_ACCUM_ID:
- T = Context.LongAccumTy;
- break;
- case PREDEF_TYPE_USHORT_ACCUM_ID:
- T = Context.UnsignedShortAccumTy;
- break;
- case PREDEF_TYPE_UACCUM_ID:
- T = Context.UnsignedAccumTy;
- break;
- case PREDEF_TYPE_ULONG_ACCUM_ID:
- T = Context.UnsignedLongAccumTy;
- break;
- case PREDEF_TYPE_SHORT_FRACT_ID:
- T = Context.ShortFractTy;
- break;
- case PREDEF_TYPE_FRACT_ID:
- T = Context.FractTy;
- break;
- case PREDEF_TYPE_LONG_FRACT_ID:
- T = Context.LongFractTy;
- break;
- case PREDEF_TYPE_USHORT_FRACT_ID:
- T = Context.UnsignedShortFractTy;
- break;
- case PREDEF_TYPE_UFRACT_ID:
- T = Context.UnsignedFractTy;
- break;
- case PREDEF_TYPE_ULONG_FRACT_ID:
- T = Context.UnsignedLongFractTy;
- break;
- case PREDEF_TYPE_SAT_SHORT_ACCUM_ID:
- T = Context.SatShortAccumTy;
- break;
- case PREDEF_TYPE_SAT_ACCUM_ID:
- T = Context.SatAccumTy;
- break;
- case PREDEF_TYPE_SAT_LONG_ACCUM_ID:
- T = Context.SatLongAccumTy;
- break;
- case PREDEF_TYPE_SAT_USHORT_ACCUM_ID:
- T = Context.SatUnsignedShortAccumTy;
- break;
- case PREDEF_TYPE_SAT_UACCUM_ID:
- T = Context.SatUnsignedAccumTy;
- break;
- case PREDEF_TYPE_SAT_ULONG_ACCUM_ID:
- T = Context.SatUnsignedLongAccumTy;
- break;
- case PREDEF_TYPE_SAT_SHORT_FRACT_ID:
- T = Context.SatShortFractTy;
- break;
- case PREDEF_TYPE_SAT_FRACT_ID:
- T = Context.SatFractTy;
- break;
- case PREDEF_TYPE_SAT_LONG_FRACT_ID:
- T = Context.SatLongFractTy;
- break;
- case PREDEF_TYPE_SAT_USHORT_FRACT_ID:
- T = Context.SatUnsignedShortFractTy;
- break;
- case PREDEF_TYPE_SAT_UFRACT_ID:
- T = Context.SatUnsignedFractTy;
- break;
- case PREDEF_TYPE_SAT_ULONG_FRACT_ID:
- T = Context.SatUnsignedLongFractTy;
- break;
- case PREDEF_TYPE_FLOAT16_ID:
- T = Context.Float16Ty;
- break;
- case PREDEF_TYPE_FLOAT128_ID:
- T = Context.Float128Ty;
- break;
- case PREDEF_TYPE_OVERLOAD_ID:
- T = Context.OverloadTy;
- break;
- case PREDEF_TYPE_BOUND_MEMBER:
- T = Context.BoundMemberTy;
- break;
- case PREDEF_TYPE_PSEUDO_OBJECT:
- T = Context.PseudoObjectTy;
- break;
- case PREDEF_TYPE_DEPENDENT_ID:
- T = Context.DependentTy;
- break;
- case PREDEF_TYPE_UNKNOWN_ANY:
- T = Context.UnknownAnyTy;
- break;
- case PREDEF_TYPE_NULLPTR_ID:
- T = Context.NullPtrTy;
- break;
- case PREDEF_TYPE_CHAR8_ID:
- T = Context.Char8Ty;
- break;
- case PREDEF_TYPE_CHAR16_ID:
- T = Context.Char16Ty;
- break;
- case PREDEF_TYPE_CHAR32_ID:
- T = Context.Char32Ty;
- break;
- case PREDEF_TYPE_OBJC_ID:
- T = Context.ObjCBuiltinIdTy;
- break;
- case PREDEF_TYPE_OBJC_CLASS:
- T = Context.ObjCBuiltinClassTy;
- break;
- case PREDEF_TYPE_OBJC_SEL:
- T = Context.ObjCBuiltinSelTy;
- break;
- #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
- case PREDEF_TYPE_##Id##_ID: \
- T = Context.SingletonId; \
- break;
- #include "clang/Basic/OpenCLImageTypes.def"
- #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
- case PREDEF_TYPE_##Id##_ID: \
- T = Context.Id##Ty; \
- break;
- #include "clang/Basic/OpenCLExtensionTypes.def"
- case PREDEF_TYPE_SAMPLER_ID:
- T = Context.OCLSamplerTy;
- break;
- case PREDEF_TYPE_EVENT_ID:
- T = Context.OCLEventTy;
- break;
- case PREDEF_TYPE_CLK_EVENT_ID:
- T = Context.OCLClkEventTy;
- break;
- case PREDEF_TYPE_QUEUE_ID:
- T = Context.OCLQueueTy;
- break;
- case PREDEF_TYPE_RESERVE_ID_ID:
- T = Context.OCLReserveIDTy;
- break;
- case PREDEF_TYPE_AUTO_DEDUCT:
- T = Context.getAutoDeductType();
- break;
- case PREDEF_TYPE_AUTO_RREF_DEDUCT:
- T = Context.getAutoRRefDeductType();
- break;
- case PREDEF_TYPE_ARC_UNBRIDGED_CAST:
- T = Context.ARCUnbridgedCastTy;
- break;
- case PREDEF_TYPE_BUILTIN_FN:
- T = Context.BuiltinFnTy;
- break;
- case PREDEF_TYPE_OMP_ARRAY_SECTION:
- T = Context.OMPArraySectionTy;
- break;
- #define SVE_TYPE(Name, Id, SingletonId) \
- case PREDEF_TYPE_##Id##_ID: \
- T = Context.SingletonId; \
- break;
- #include "clang/Basic/AArch64SVEACLETypes.def"
- }
- assert(!T.isNull() && "Unknown predefined type");
- return T.withFastQualifiers(FastQuals);
- }
- Index -= NUM_PREDEF_TYPE_IDS;
- assert(Index < TypesLoaded.size() && "Type index out-of-range");
- if (TypesLoaded[Index].isNull()) {
- TypesLoaded[Index] = readTypeRecord(Index);
- if (TypesLoaded[Index].isNull())
- return QualType();
- TypesLoaded[Index]->setFromAST();
- if (DeserializationListener)
- DeserializationListener->TypeRead(TypeIdx::fromTypeID(ID),
- TypesLoaded[Index]);
- }
- return TypesLoaded[Index].withFastQualifiers(FastQuals);
- }
- QualType ASTReader::getLocalType(ModuleFile &F, unsigned LocalID) {
- return GetType(getGlobalTypeID(F, LocalID));
- }
- serialization::TypeID
- ASTReader::getGlobalTypeID(ModuleFile &F, unsigned LocalID) const {
- unsigned FastQuals = LocalID & Qualifiers::FastMask;
- unsigned LocalIndex = LocalID >> Qualifiers::FastWidth;
- if (LocalIndex < NUM_PREDEF_TYPE_IDS)
- return LocalID;
- if (!F.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(F);
- ContinuousRangeMap<uint32_t, int, 2>::iterator I
- = F.TypeRemap.find(LocalIndex - NUM_PREDEF_TYPE_IDS);
- assert(I != F.TypeRemap.end() && "Invalid index into type index remap");
- unsigned GlobalIndex = LocalIndex + I->second;
- return (GlobalIndex << Qualifiers::FastWidth) | FastQuals;
- }
- TemplateArgumentLocInfo
- ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F,
- TemplateArgument::ArgKind Kind,
- const RecordData &Record,
- unsigned &Index) {
- switch (Kind) {
- case TemplateArgument::Expression:
- return ReadExpr(F);
- case TemplateArgument::Type:
- return GetTypeSourceInfo(F, Record, Index);
- case TemplateArgument::Template: {
- NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record,
- Index);
- SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index);
- return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc,
- SourceLocation());
- }
- case TemplateArgument::TemplateExpansion: {
- NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record,
- Index);
- SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index);
- SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Index);
- return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc,
- EllipsisLoc);
- }
- case TemplateArgument::Null:
- case TemplateArgument::Integral:
- case TemplateArgument::Declaration:
- case TemplateArgument::NullPtr:
- case TemplateArgument::Pack:
- // FIXME: Is this right?
- return TemplateArgumentLocInfo();
- }
- llvm_unreachable("unexpected template argument loc");
- }
- TemplateArgumentLoc
- ASTReader::ReadTemplateArgumentLoc(ModuleFile &F,
- const RecordData &Record, unsigned &Index) {
- TemplateArgument Arg = ReadTemplateArgument(F, Record, Index);
- if (Arg.getKind() == TemplateArgument::Expression) {
- if (Record[Index++]) // bool InfoHasSameExpr.
- return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr()));
- }
- return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(F, Arg.getKind(),
- Record, Index));
- }
- const ASTTemplateArgumentListInfo*
- ASTReader::ReadASTTemplateArgumentListInfo(ModuleFile &F,
- const RecordData &Record,
- unsigned &Index) {
- SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Index);
- SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Index);
- unsigned NumArgsAsWritten = Record[Index++];
- TemplateArgumentListInfo TemplArgsInfo(LAngleLoc, RAngleLoc);
- for (unsigned i = 0; i != NumArgsAsWritten; ++i)
- TemplArgsInfo.addArgument(ReadTemplateArgumentLoc(F, Record, Index));
- return ASTTemplateArgumentListInfo::Create(getContext(), TemplArgsInfo);
- }
- Decl *ASTReader::GetExternalDecl(uint32_t ID) {
- return GetDecl(ID);
- }
- void ASTReader::CompleteRedeclChain(const Decl *D) {
- if (NumCurrentElementsDeserializing) {
- // We arrange to not care about the complete redeclaration chain while we're
- // deserializing. Just remember that the AST has marked this one as complete
- // but that it's not actually complete yet, so we know we still need to
- // complete it later.
- PendingIncompleteDeclChains.push_back(const_cast<Decl*>(D));
- return;
- }
- const DeclContext *DC = D->getDeclContext()->getRedeclContext();
- // If this is a named declaration, complete it by looking it up
- // within its context.
- //
- // FIXME: Merging a function definition should merge
- // all mergeable entities within it.
- if (isa<TranslationUnitDecl>(DC) || isa<NamespaceDecl>(DC) ||
- isa<CXXRecordDecl>(DC) || isa<EnumDecl>(DC)) {
- if (DeclarationName Name = cast<NamedDecl>(D)->getDeclName()) {
- if (!getContext().getLangOpts().CPlusPlus &&
- isa<TranslationUnitDecl>(DC)) {
- // Outside of C++, we don't have a lookup table for the TU, so update
- // the identifier instead. (For C++ modules, we don't store decls
- // in the serialized identifier table, so we do the lookup in the TU.)
- auto *II = Name.getAsIdentifierInfo();
- assert(II && "non-identifier name in C?");
- if (II->isOutOfDate())
- updateOutOfDateIdentifier(*II);
- } else
- DC->lookup(Name);
- } else if (needsAnonymousDeclarationNumber(cast<NamedDecl>(D))) {
- // Find all declarations of this kind from the relevant context.
- for (auto *DCDecl : cast<Decl>(D->getLexicalDeclContext())->redecls()) {
- auto *DC = cast<DeclContext>(DCDecl);
- SmallVector<Decl*, 8> Decls;
- FindExternalLexicalDecls(
- DC, [&](Decl::Kind K) { return K == D->getKind(); }, Decls);
- }
- }
- }
- if (auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D))
- CTSD->getSpecializedTemplate()->LoadLazySpecializations();
- if (auto *VTSD = dyn_cast<VarTemplateSpecializationDecl>(D))
- VTSD->getSpecializedTemplate()->LoadLazySpecializations();
- if (auto *FD = dyn_cast<FunctionDecl>(D)) {
- if (auto *Template = FD->getPrimaryTemplate())
- Template->LoadLazySpecializations();
- }
- }
- CXXCtorInitializer **
- ASTReader::GetExternalCXXCtorInitializers(uint64_t Offset) {
- RecordLocation Loc = getLocalBitOffset(Offset);
- BitstreamCursor &Cursor = Loc.F->DeclsCursor;
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(Loc.Offset)) {
- Error(std::move(Err));
- return nullptr;
- }
- ReadingKindTracker ReadingKind(Read_Decl, *this);
- RecordData Record;
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- Error(MaybeCode.takeError());
- return nullptr;
- }
- unsigned Code = MaybeCode.get();
- Expected<unsigned> MaybeRecCode = Cursor.readRecord(Code, Record);
- if (!MaybeRecCode) {
- Error(MaybeRecCode.takeError());
- return nullptr;
- }
- if (MaybeRecCode.get() != DECL_CXX_CTOR_INITIALIZERS) {
- Error("malformed AST file: missing C++ ctor initializers");
- return nullptr;
- }
- unsigned Idx = 0;
- return ReadCXXCtorInitializers(*Loc.F, Record, Idx);
- }
- CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) {
- assert(ContextObj && "reading base specifiers with no AST context");
- ASTContext &Context = *ContextObj;
- RecordLocation Loc = getLocalBitOffset(Offset);
- BitstreamCursor &Cursor = Loc.F->DeclsCursor;
- SavedStreamPosition SavedPosition(Cursor);
- if (llvm::Error Err = Cursor.JumpToBit(Loc.Offset)) {
- Error(std::move(Err));
- return nullptr;
- }
- ReadingKindTracker ReadingKind(Read_Decl, *this);
- RecordData Record;
- Expected<unsigned> MaybeCode = Cursor.ReadCode();
- if (!MaybeCode) {
- Error(MaybeCode.takeError());
- return nullptr;
- }
- unsigned Code = MaybeCode.get();
- Expected<unsigned> MaybeRecCode = Cursor.readRecord(Code, Record);
- if (!MaybeRecCode) {
- Error(MaybeCode.takeError());
- return nullptr;
- }
- unsigned RecCode = MaybeRecCode.get();
- if (RecCode != DECL_CXX_BASE_SPECIFIERS) {
- Error("malformed AST file: missing C++ base specifiers");
- return nullptr;
- }
- unsigned Idx = 0;
- unsigned NumBases = Record[Idx++];
- void *Mem = Context.Allocate(sizeof(CXXBaseSpecifier) * NumBases);
- CXXBaseSpecifier *Bases = new (Mem) CXXBaseSpecifier [NumBases];
- for (unsigned I = 0; I != NumBases; ++I)
- Bases[I] = ReadCXXBaseSpecifier(*Loc.F, Record, Idx);
- return Bases;
- }
- serialization::DeclID
- ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const {
- if (LocalID < NUM_PREDEF_DECL_IDS)
- return LocalID;
- if (!F.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(F);
- ContinuousRangeMap<uint32_t, int, 2>::iterator I
- = F.DeclRemap.find(LocalID - NUM_PREDEF_DECL_IDS);
- assert(I != F.DeclRemap.end() && "Invalid index into decl index remap");
- return LocalID + I->second;
- }
- bool ASTReader::isDeclIDFromModule(serialization::GlobalDeclID ID,
- ModuleFile &M) const {
- // Predefined decls aren't from any module.
- if (ID < NUM_PREDEF_DECL_IDS)
- return false;
- return ID - NUM_PREDEF_DECL_IDS >= M.BaseDeclID &&
- ID - NUM_PREDEF_DECL_IDS < M.BaseDeclID + M.LocalNumDecls;
- }
- ModuleFile *ASTReader::getOwningModuleFile(const Decl *D) {
- if (!D->isFromASTFile())
- return nullptr;
- GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(D->getGlobalID());
- assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
- return I->second;
- }
- SourceLocation ASTReader::getSourceLocationForDeclID(GlobalDeclID ID) {
- if (ID < NUM_PREDEF_DECL_IDS)
- return SourceLocation();
- unsigned Index = ID - NUM_PREDEF_DECL_IDS;
- if (Index > DeclsLoaded.size()) {
- Error("declaration ID out-of-range for AST file");
- return SourceLocation();
- }
- if (Decl *D = DeclsLoaded[Index])
- return D->getLocation();
- SourceLocation Loc;
- DeclCursorForID(ID, Loc);
- return Loc;
- }
- static Decl *getPredefinedDecl(ASTContext &Context, PredefinedDeclIDs ID) {
- switch (ID) {
- case PREDEF_DECL_NULL_ID:
- return nullptr;
- case PREDEF_DECL_TRANSLATION_UNIT_ID:
- return Context.getTranslationUnitDecl();
- case PREDEF_DECL_OBJC_ID_ID:
- return Context.getObjCIdDecl();
- case PREDEF_DECL_OBJC_SEL_ID:
- return Context.getObjCSelDecl();
- case PREDEF_DECL_OBJC_CLASS_ID:
- return Context.getObjCClassDecl();
- case PREDEF_DECL_OBJC_PROTOCOL_ID:
- return Context.getObjCProtocolDecl();
- case PREDEF_DECL_INT_128_ID:
- return Context.getInt128Decl();
- case PREDEF_DECL_UNSIGNED_INT_128_ID:
- return Context.getUInt128Decl();
- case PREDEF_DECL_OBJC_INSTANCETYPE_ID:
- return Context.getObjCInstanceTypeDecl();
- case PREDEF_DECL_BUILTIN_VA_LIST_ID:
- return Context.getBuiltinVaListDecl();
- case PREDEF_DECL_VA_LIST_TAG:
- return Context.getVaListTagDecl();
- case PREDEF_DECL_BUILTIN_MS_VA_LIST_ID:
- return Context.getBuiltinMSVaListDecl();
- case PREDEF_DECL_EXTERN_C_CONTEXT_ID:
- return Context.getExternCContextDecl();
- case PREDEF_DECL_MAKE_INTEGER_SEQ_ID:
- return Context.getMakeIntegerSeqDecl();
- case PREDEF_DECL_CF_CONSTANT_STRING_ID:
- return Context.getCFConstantStringDecl();
- case PREDEF_DECL_CF_CONSTANT_STRING_TAG_ID:
- return Context.getCFConstantStringTagDecl();
- case PREDEF_DECL_TYPE_PACK_ELEMENT_ID:
- return Context.getTypePackElementDecl();
- }
- llvm_unreachable("PredefinedDeclIDs unknown enum value");
- }
- Decl *ASTReader::GetExistingDecl(DeclID ID) {
- assert(ContextObj && "reading decl with no AST context");
- if (ID < NUM_PREDEF_DECL_IDS) {
- Decl *D = getPredefinedDecl(*ContextObj, (PredefinedDeclIDs)ID);
- if (D) {
- // Track that we have merged the declaration with ID \p ID into the
- // pre-existing predefined declaration \p D.
- auto &Merged = KeyDecls[D->getCanonicalDecl()];
- if (Merged.empty())
- Merged.push_back(ID);
- }
- return D;
- }
- unsigned Index = ID - NUM_PREDEF_DECL_IDS;
- if (Index >= DeclsLoaded.size()) {
- assert(0 && "declaration ID out-of-range for AST file");
- Error("declaration ID out-of-range for AST file");
- return nullptr;
- }
- return DeclsLoaded[Index];
- }
- Decl *ASTReader::GetDecl(DeclID ID) {
- if (ID < NUM_PREDEF_DECL_IDS)
- return GetExistingDecl(ID);
- unsigned Index = ID - NUM_PREDEF_DECL_IDS;
- if (Index >= DeclsLoaded.size()) {
- assert(0 && "declaration ID out-of-range for AST file");
- Error("declaration ID out-of-range for AST file");
- return nullptr;
- }
- if (!DeclsLoaded[Index]) {
- ReadDeclRecord(ID);
- if (DeserializationListener)
- DeserializationListener->DeclRead(ID, DeclsLoaded[Index]);
- }
- return DeclsLoaded[Index];
- }
- DeclID ASTReader::mapGlobalIDToModuleFileGlobalID(ModuleFile &M,
- DeclID GlobalID) {
- if (GlobalID < NUM_PREDEF_DECL_IDS)
- return GlobalID;
- GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(GlobalID);
- assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
- ModuleFile *Owner = I->second;
- llvm::DenseMap<ModuleFile *, serialization::DeclID>::iterator Pos
- = M.GlobalToLocalDeclIDs.find(Owner);
- if (Pos == M.GlobalToLocalDeclIDs.end())
- return 0;
- return GlobalID - Owner->BaseDeclID + Pos->second;
- }
- serialization::DeclID ASTReader::ReadDeclID(ModuleFile &F,
- const RecordData &Record,
- unsigned &Idx) {
- if (Idx >= Record.size()) {
- Error("Corrupted AST file");
- return 0;
- }
- return getGlobalDeclID(F, Record[Idx++]);
- }
- /// Resolve the offset of a statement into a statement.
- ///
- /// This operation will read a new statement from the external
- /// source each time it is called, and is meant to be used via a
- /// LazyOffsetPtr (which is used by Decls for the body of functions, etc).
- Stmt *ASTReader::GetExternalDeclStmt(uint64_t Offset) {
- // Switch case IDs are per Decl.
- ClearSwitchCaseIDs();
- // Offset here is a global offset across the entire chain.
- RecordLocation Loc = getLocalBitOffset(Offset);
- if (llvm::Error Err = Loc.F->DeclsCursor.JumpToBit(Loc.Offset)) {
- Error(std::move(Err));
- return nullptr;
- }
- assert(NumCurrentElementsDeserializing == 0 &&
- "should not be called while already deserializing");
- Deserializing D(this);
- return ReadStmtFromStream(*Loc.F);
- }
- void ASTReader::FindExternalLexicalDecls(
- const DeclContext *DC, llvm::function_ref<bool(Decl::Kind)> IsKindWeWant,
- SmallVectorImpl<Decl *> &Decls) {
- bool PredefsVisited[NUM_PREDEF_DECL_IDS] = {};
- auto Visit = [&] (ModuleFile *M, LexicalContents LexicalDecls) {
- assert(LexicalDecls.size() % 2 == 0 && "expected an even number of entries");
- for (int I = 0, N = LexicalDecls.size(); I != N; I += 2) {
- auto K = (Decl::Kind)+LexicalDecls[I];
- if (!IsKindWeWant(K))
- continue;
- auto ID = (serialization::DeclID)+LexicalDecls[I + 1];
- // Don't add predefined declarations to the lexical context more
- // than once.
- if (ID < NUM_PREDEF_DECL_IDS) {
- if (PredefsVisited[ID])
- continue;
- PredefsVisited[ID] = true;
- }
- if (Decl *D = GetLocalDecl(*M, ID)) {
- assert(D->getKind() == K && "wrong kind for lexical decl");
- if (!DC->isDeclInLexicalTraversal(D))
- Decls.push_back(D);
- }
- }
- };
- if (isa<TranslationUnitDecl>(DC)) {
- for (auto Lexical : TULexicalDecls)
- Visit(Lexical.first, Lexical.second);
- } else {
- auto I = LexicalDecls.find(DC);
- if (I != LexicalDecls.end())
- Visit(I->second.first, I->second.second);
- }
- ++NumLexicalDeclContextsRead;
- }
- namespace {
- class DeclIDComp {
- ASTReader &Reader;
- ModuleFile &Mod;
- public:
- DeclIDComp(ASTReader &Reader, ModuleFile &M) : Reader(Reader), Mod(M) {}
- bool operator()(LocalDeclID L, LocalDeclID R) const {
- SourceLocation LHS = getLocation(L);
- SourceLocation RHS = getLocation(R);
- return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
- }
- bool operator()(SourceLocation LHS, LocalDeclID R) const {
- SourceLocation RHS = getLocation(R);
- return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
- }
- bool operator()(LocalDeclID L, SourceLocation RHS) const {
- SourceLocation LHS = getLocation(L);
- return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
- }
- SourceLocation getLocation(LocalDeclID ID) const {
- return Reader.getSourceManager().getFileLoc(
- Reader.getSourceLocationForDeclID(Reader.getGlobalDeclID(Mod, ID)));
- }
- };
- } // namespace
- void ASTReader::FindFileRegionDecls(FileID File,
- unsigned Offset, unsigned Length,
- SmallVectorImpl<Decl *> &Decls) {
- SourceManager &SM = getSourceManager();
- llvm::DenseMap<FileID, FileDeclsInfo>::iterator I = FileDeclIDs.find(File);
- if (I == FileDeclIDs.end())
- return;
- FileDeclsInfo &DInfo = I->second;
- if (DInfo.Decls.empty())
- return;
- SourceLocation
- BeginLoc = SM.getLocForStartOfFile(File).getLocWithOffset(Offset);
- SourceLocation EndLoc = BeginLoc.getLocWithOffset(Length);
- DeclIDComp DIDComp(*this, *DInfo.Mod);
- ArrayRef<serialization::LocalDeclID>::iterator BeginIt =
- llvm::lower_bound(DInfo.Decls, BeginLoc, DIDComp);
- if (BeginIt != DInfo.Decls.begin())
- --BeginIt;
- // If we are pointing at a top-level decl inside an objc container, we need
- // to backtrack until we find it otherwise we will fail to report that the
- // region overlaps with an objc container.
- while (BeginIt != DInfo.Decls.begin() &&
- GetDecl(getGlobalDeclID(*DInfo.Mod, *BeginIt))
- ->isTopLevelDeclInObjCContainer())
- --BeginIt;
- ArrayRef<serialization::LocalDeclID>::iterator EndIt =
- llvm::upper_bound(DInfo.Decls, EndLoc, DIDComp);
- if (EndIt != DInfo.Decls.end())
- ++EndIt;
- for (ArrayRef<serialization::LocalDeclID>::iterator
- DIt = BeginIt; DIt != EndIt; ++DIt)
- Decls.push_back(GetDecl(getGlobalDeclID(*DInfo.Mod, *DIt)));
- }
- bool
- ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
- DeclarationName Name) {
- assert(DC->hasExternalVisibleStorage() && DC == DC->getPrimaryContext() &&
- "DeclContext has no visible decls in storage");
- if (!Name)
- return false;
- auto It = Lookups.find(DC);
- if (It == Lookups.end())
- return false;
- Deserializing LookupResults(this);
- // Load the list of declarations.
- SmallVector<NamedDecl *, 64> Decls;
- for (DeclID ID : It->second.Table.find(Name)) {
- NamedDecl *ND = cast<NamedDecl>(GetDecl(ID));
- if (ND->getDeclName() == Name)
- Decls.push_back(ND);
- }
- ++NumVisibleDeclContextsRead;
- SetExternalVisibleDeclsForName(DC, Name, Decls);
- return !Decls.empty();
- }
- void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) {
- if (!DC->hasExternalVisibleStorage())
- return;
- auto It = Lookups.find(DC);
- assert(It != Lookups.end() &&
- "have external visible storage but no lookup tables");
- DeclsMap Decls;
- for (DeclID ID : It->second.Table.findAll()) {
- NamedDecl *ND = cast<NamedDecl>(GetDecl(ID));
- Decls[ND->getDeclName()].push_back(ND);
- }
- ++NumVisibleDeclContextsRead;
- for (DeclsMap::iterator I = Decls.begin(), E = Decls.end(); I != E; ++I) {
- SetExternalVisibleDeclsForName(DC, I->first, I->second);
- }
- const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false);
- }
- const serialization::reader::DeclContextLookupTable *
- ASTReader::getLoadedLookupTables(DeclContext *Primary) const {
- auto I = Lookups.find(Primary);
- return I == Lookups.end() ? nullptr : &I->second;
- }
- /// Under non-PCH compilation the consumer receives the objc methods
- /// before receiving the implementation, and codegen depends on this.
- /// We simulate this by deserializing and passing to consumer the methods of the
- /// implementation before passing the deserialized implementation decl.
- static void PassObjCImplDeclToConsumer(ObjCImplDecl *ImplD,
- ASTConsumer *Consumer) {
- assert(ImplD && Consumer);
- for (auto *I : ImplD->methods())
- Consumer->HandleInterestingDecl(DeclGroupRef(I));
- Consumer->HandleInterestingDecl(DeclGroupRef(ImplD));
- }
- void ASTReader::PassInterestingDeclToConsumer(Decl *D) {
- if (ObjCImplDecl *ImplD = dyn_cast<ObjCImplDecl>(D))
- PassObjCImplDeclToConsumer(ImplD, Consumer);
- else
- Consumer->HandleInterestingDecl(DeclGroupRef(D));
- }
- void ASTReader::StartTranslationUnit(ASTConsumer *Consumer) {
- this->Consumer = Consumer;
- if (Consumer)
- PassInterestingDeclsToConsumer();
- if (DeserializationListener)
- DeserializationListener->ReaderInitialized(this);
- }
- void ASTReader::PrintStats() {
- std::fprintf(stderr, "*** AST File Statistics:\n");
- unsigned NumTypesLoaded
- = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(),
- QualType());
- unsigned NumDeclsLoaded
- = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(),
- (Decl *)nullptr);
- unsigned NumIdentifiersLoaded
- = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(),
- IdentifiersLoaded.end(),
- (IdentifierInfo *)nullptr);
- unsigned NumMacrosLoaded
- = MacrosLoaded.size() - std::count(MacrosLoaded.begin(),
- MacrosLoaded.end(),
- (MacroInfo *)nullptr);
- unsigned NumSelectorsLoaded
- = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(),
- SelectorsLoaded.end(),
- Selector());
- if (unsigned TotalNumSLocEntries = getTotalNumSLocs())
- std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n",
- NumSLocEntriesRead, TotalNumSLocEntries,
- ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100));
- if (!TypesLoaded.empty())
- std::fprintf(stderr, " %u/%u types read (%f%%)\n",
- NumTypesLoaded, (unsigned)TypesLoaded.size(),
- ((float)NumTypesLoaded/TypesLoaded.size() * 100));
- if (!DeclsLoaded.empty())
- std::fprintf(stderr, " %u/%u declarations read (%f%%)\n",
- NumDeclsLoaded, (unsigned)DeclsLoaded.size(),
- ((float)NumDeclsLoaded/DeclsLoaded.size() * 100));
- if (!IdentifiersLoaded.empty())
- std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n",
- NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(),
- ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100));
- if (!MacrosLoaded.empty())
- std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
- NumMacrosLoaded, (unsigned)MacrosLoaded.size(),
- ((float)NumMacrosLoaded/MacrosLoaded.size() * 100));
- if (!SelectorsLoaded.empty())
- std::fprintf(stderr, " %u/%u selectors read (%f%%)\n",
- NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(),
- ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100));
- if (TotalNumStatements)
- std::fprintf(stderr, " %u/%u statements read (%f%%)\n",
- NumStatementsRead, TotalNumStatements,
- ((float)NumStatementsRead/TotalNumStatements * 100));
- if (TotalNumMacros)
- std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
- NumMacrosRead, TotalNumMacros,
- ((float)NumMacrosRead/TotalNumMacros * 100));
- if (TotalLexicalDeclContexts)
- std::fprintf(stderr, " %u/%u lexical declcontexts read (%f%%)\n",
- NumLexicalDeclContextsRead, TotalLexicalDeclContexts,
- ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts
- * 100));
- if (TotalVisibleDeclContexts)
- std::fprintf(stderr, " %u/%u visible declcontexts read (%f%%)\n",
- NumVisibleDeclContextsRead, TotalVisibleDeclContexts,
- ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts
- * 100));
- if (TotalNumMethodPoolEntries)
- std::fprintf(stderr, " %u/%u method pool entries read (%f%%)\n",
- NumMethodPoolEntriesRead, TotalNumMethodPoolEntries,
- ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries
- * 100));
- if (NumMethodPoolLookups)
- std::fprintf(stderr, " %u/%u method pool lookups succeeded (%f%%)\n",
- NumMethodPoolHits, NumMethodPoolLookups,
- ((float)NumMethodPoolHits/NumMethodPoolLookups * 100.0));
- if (NumMethodPoolTableLookups)
- std::fprintf(stderr, " %u/%u method pool table lookups succeeded (%f%%)\n",
- NumMethodPoolTableHits, NumMethodPoolTableLookups,
- ((float)NumMethodPoolTableHits/NumMethodPoolTableLookups
- * 100.0));
- if (NumIdentifierLookupHits)
- std::fprintf(stderr,
- " %u / %u identifier table lookups succeeded (%f%%)\n",
- NumIdentifierLookupHits, NumIdentifierLookups,
- (double)NumIdentifierLookupHits*100.0/NumIdentifierLookups);
- if (GlobalIndex) {
- std::fprintf(stderr, "\n");
- GlobalIndex->printStats();
- }
- std::fprintf(stderr, "\n");
- dump();
- std::fprintf(stderr, "\n");
- }
- template<typename Key, typename ModuleFile, unsigned InitialCapacity>
- LLVM_DUMP_METHOD static void
- dumpModuleIDMap(StringRef Name,
- const ContinuousRangeMap<Key, ModuleFile *,
- InitialCapacity> &Map) {
- if (Map.begin() == Map.end())
- return;
- using MapType = ContinuousRangeMap<Key, ModuleFile *, InitialCapacity>;
- llvm::errs() << Name << ":\n";
- for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end();
- I != IEnd; ++I) {
- llvm::errs() << " " << I->first << " -> " << I->second->FileName
- << "\n";
- }
- }
- LLVM_DUMP_METHOD void ASTReader::dump() {
- llvm::errs() << "*** PCH/ModuleFile Remappings:\n";
- dumpModuleIDMap("Global bit offset map", GlobalBitOffsetsMap);
- dumpModuleIDMap("Global source location entry map", GlobalSLocEntryMap);
- dumpModuleIDMap("Global type map", GlobalTypeMap);
- dumpModuleIDMap("Global declaration map", GlobalDeclMap);
- dumpModuleIDMap("Global identifier map", GlobalIdentifierMap);
- dumpModuleIDMap("Global macro map", GlobalMacroMap);
- dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap);
- dumpModuleIDMap("Global selector map", GlobalSelectorMap);
- dumpModuleIDMap("Global preprocessed entity map",
- GlobalPreprocessedEntityMap);
- llvm::errs() << "\n*** PCH/Modules Loaded:";
- for (ModuleFile &M : ModuleMgr)
- M.dump();
- }
- /// Return the amount of memory used by memory buffers, breaking down
- /// by heap-backed versus mmap'ed memory.
- void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const {
- for (ModuleFile &I : ModuleMgr) {
- if (llvm::MemoryBuffer *buf = I.Buffer) {
- size_t bytes = buf->getBufferSize();
- switch (buf->getBufferKind()) {
- case llvm::MemoryBuffer::MemoryBuffer_Malloc:
- sizes.malloc_bytes += bytes;
- break;
- case llvm::MemoryBuffer::MemoryBuffer_MMap:
- sizes.mmap_bytes += bytes;
- break;
- }
- }
- }
- }
- void ASTReader::InitializeSema(Sema &S) {
- SemaObj = &S;
- S.addExternalSource(this);
- // Makes sure any declarations that were deserialized "too early"
- // still get added to the identifier's declaration chains.
- for (uint64_t ID : PreloadedDeclIDs) {
- NamedDecl *D = cast<NamedDecl>(GetDecl(ID));
- pushExternalDeclIntoScope(D, D->getDeclName());
- }
- PreloadedDeclIDs.clear();
- // FIXME: What happens if these are changed by a module import?
- if (!FPPragmaOptions.empty()) {
- assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS");
- SemaObj->FPFeatures = FPOptions(FPPragmaOptions[0]);
- }
- SemaObj->OpenCLFeatures.copy(OpenCLExtensions);
- SemaObj->OpenCLTypeExtMap = OpenCLTypeExtMap;
- SemaObj->OpenCLDeclExtMap = OpenCLDeclExtMap;
- UpdateSema();
- }
- void ASTReader::UpdateSema() {
- assert(SemaObj && "no Sema to update");
- // Load the offsets of the declarations that Sema references.
- // They will be lazily deserialized when needed.
- if (!SemaDeclRefs.empty()) {
- assert(SemaDeclRefs.size() % 3 == 0);
- for (unsigned I = 0; I != SemaDeclRefs.size(); I += 3) {
- if (!SemaObj->StdNamespace)
- SemaObj->StdNamespace = SemaDeclRefs[I];
- if (!SemaObj->StdBadAlloc)
- SemaObj->StdBadAlloc = SemaDeclRefs[I+1];
- if (!SemaObj->StdAlignValT)
- SemaObj->StdAlignValT = SemaDeclRefs[I+2];
- }
- SemaDeclRefs.clear();
- }
- // Update the state of pragmas. Use the same API as if we had encountered the
- // pragma in the source.
- if(OptimizeOffPragmaLocation.isValid())
- SemaObj->ActOnPragmaOptimize(/* On = */ false, OptimizeOffPragmaLocation);
- if (PragmaMSStructState != -1)
- SemaObj->ActOnPragmaMSStruct((PragmaMSStructKind)PragmaMSStructState);
- if (PointersToMembersPragmaLocation.isValid()) {
- SemaObj->ActOnPragmaMSPointersToMembers(
- (LangOptions::PragmaMSPointersToMembersKind)
- PragmaMSPointersToMembersState,
- PointersToMembersPragmaLocation);
- }
- SemaObj->ForceCUDAHostDeviceDepth = ForceCUDAHostDeviceDepth;
- if (PragmaPackCurrentValue) {
- // The bottom of the stack might have a default value. It must be adjusted
- // to the current value to ensure that the packing state is preserved after
- // popping entries that were included/imported from a PCH/module.
- bool DropFirst = false;
- if (!PragmaPackStack.empty() &&
- PragmaPackStack.front().Location.isInvalid()) {
- assert(PragmaPackStack.front().Value == SemaObj->PackStack.DefaultValue &&
- "Expected a default alignment value");
- SemaObj->PackStack.Stack.emplace_back(
- PragmaPackStack.front().SlotLabel, SemaObj->PackStack.CurrentValue,
- SemaObj->PackStack.CurrentPragmaLocation,
- PragmaPackStack.front().PushLocation);
- DropFirst = true;
- }
- for (const auto &Entry :
- llvm::makeArrayRef(PragmaPackStack).drop_front(DropFirst ? 1 : 0))
- SemaObj->PackStack.Stack.emplace_back(Entry.SlotLabel, Entry.Value,
- Entry.Location, Entry.PushLocation);
- if (PragmaPackCurrentLocation.isInvalid()) {
- assert(*PragmaPackCurrentValue == SemaObj->PackStack.DefaultValue &&
- "Expected a default alignment value");
- // Keep the current values.
- } else {
- SemaObj->PackStack.CurrentValue = *PragmaPackCurrentValue;
- SemaObj->PackStack.CurrentPragmaLocation = PragmaPackCurrentLocation;
- }
- }
- }
- IdentifierInfo *ASTReader::get(StringRef Name) {
- // Note that we are loading an identifier.
- Deserializing AnIdentifier(this);
- IdentifierLookupVisitor Visitor(Name, /*PriorGeneration=*/0,
- NumIdentifierLookups,
- NumIdentifierLookupHits);
- // We don't need to do identifier table lookups in C++ modules (we preload
- // all interesting declarations, and don't need to use the scope for name
- // lookups). Perform the lookup in PCH files, though, since we don't build
- // a complete initial identifier table if we're carrying on from a PCH.
- if (PP.getLangOpts().CPlusPlus) {
- for (auto F : ModuleMgr.pch_modules())
- if (Visitor(*F))
- break;
- } else {
- // If there is a global index, look there first to determine which modules
- // provably do not have any results for this identifier.
- GlobalModuleIndex::HitSet Hits;
- GlobalModuleIndex::HitSet *HitsPtr = nullptr;
- if (!loadGlobalIndex()) {
- if (GlobalIndex->lookupIdentifier(Name, Hits)) {
- HitsPtr = &Hits;
- }
- }
- ModuleMgr.visit(Visitor, HitsPtr);
- }
- IdentifierInfo *II = Visitor.getIdentifierInfo();
- markIdentifierUpToDate(II);
- return II;
- }
- namespace clang {
- /// An identifier-lookup iterator that enumerates all of the
- /// identifiers stored within a set of AST files.
- class ASTIdentifierIterator : public IdentifierIterator {
- /// The AST reader whose identifiers are being enumerated.
- const ASTReader &Reader;
- /// The current index into the chain of AST files stored in
- /// the AST reader.
- unsigned Index;
- /// The current position within the identifier lookup table
- /// of the current AST file.
- ASTIdentifierLookupTable::key_iterator Current;
- /// The end position within the identifier lookup table of
- /// the current AST file.
- ASTIdentifierLookupTable::key_iterator End;
- /// Whether to skip any modules in the ASTReader.
- bool SkipModules;
- public:
- explicit ASTIdentifierIterator(const ASTReader &Reader,
- bool SkipModules = false);
- StringRef Next() override;
- };
- } // namespace clang
- ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader,
- bool SkipModules)
- : Reader(Reader), Index(Reader.ModuleMgr.size()), SkipModules(SkipModules) {
- }
- StringRef ASTIdentifierIterator::Next() {
- while (Current == End) {
- // If we have exhausted all of our AST files, we're done.
- if (Index == 0)
- return StringRef();
- --Index;
- ModuleFile &F = Reader.ModuleMgr[Index];
- if (SkipModules && F.isModule())
- continue;
- ASTIdentifierLookupTable *IdTable =
- (ASTIdentifierLookupTable *)F.IdentifierLookupTable;
- Current = IdTable->key_begin();
- End = IdTable->key_end();
- }
- // We have any identifiers remaining in the current AST file; return
- // the next one.
- StringRef Result = *Current;
- ++Current;
- return Result;
- }
- namespace {
- /// A utility for appending two IdentifierIterators.
- class ChainedIdentifierIterator : public IdentifierIterator {
- std::unique_ptr<IdentifierIterator> Current;
- std::unique_ptr<IdentifierIterator> Queued;
- public:
- ChainedIdentifierIterator(std::unique_ptr<IdentifierIterator> First,
- std::unique_ptr<IdentifierIterator> Second)
- : Current(std::move(First)), Queued(std::move(Second)) {}
- StringRef Next() override {
- if (!Current)
- return StringRef();
- StringRef result = Current->Next();
- if (!result.empty())
- return result;
- // Try the queued iterator, which may itself be empty.
- Current.reset();
- std::swap(Current, Queued);
- return Next();
- }
- };
- } // namespace
- IdentifierIterator *ASTReader::getIdentifiers() {
- if (!loadGlobalIndex()) {
- std::unique_ptr<IdentifierIterator> ReaderIter(
- new ASTIdentifierIterator(*this, /*SkipModules=*/true));
- std::unique_ptr<IdentifierIterator> ModulesIter(
- GlobalIndex->createIdentifierIterator());
- return new ChainedIdentifierIterator(std::move(ReaderIter),
- std::move(ModulesIter));
- }
- return new ASTIdentifierIterator(*this);
- }
- namespace clang {
- namespace serialization {
- class ReadMethodPoolVisitor {
- ASTReader &Reader;
- Selector Sel;
- unsigned PriorGeneration;
- unsigned InstanceBits = 0;
- unsigned FactoryBits = 0;
- bool InstanceHasMoreThanOneDecl = false;
- bool FactoryHasMoreThanOneDecl = false;
- SmallVector<ObjCMethodDecl *, 4> InstanceMethods;
- SmallVector<ObjCMethodDecl *, 4> FactoryMethods;
- public:
- ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel,
- unsigned PriorGeneration)
- : Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) {}
- bool operator()(ModuleFile &M) {
- if (!M.SelectorLookupTable)
- return false;
- // If we've already searched this module file, skip it now.
- if (M.Generation <= PriorGeneration)
- return true;
- ++Reader.NumMethodPoolTableLookups;
- ASTSelectorLookupTable *PoolTable
- = (ASTSelectorLookupTable*)M.SelectorLookupTable;
- ASTSelectorLookupTable::iterator Pos = PoolTable->find(Sel);
- if (Pos == PoolTable->end())
- return false;
- ++Reader.NumMethodPoolTableHits;
- ++Reader.NumSelectorsRead;
- // FIXME: Not quite happy with the statistics here. We probably should
- // disable this tracking when called via LoadSelector.
- // Also, should entries without methods count as misses?
- ++Reader.NumMethodPoolEntriesRead;
- ASTSelectorLookupTrait::data_type Data = *Pos;
- if (Reader.DeserializationListener)
- Reader.DeserializationListener->SelectorRead(Data.ID, Sel);
- InstanceMethods.append(Data.Instance.begin(), Data.Instance.end());
- FactoryMethods.append(Data.Factory.begin(), Data.Factory.end());
- InstanceBits = Data.InstanceBits;
- FactoryBits = Data.FactoryBits;
- InstanceHasMoreThanOneDecl = Data.InstanceHasMoreThanOneDecl;
- FactoryHasMoreThanOneDecl = Data.FactoryHasMoreThanOneDecl;
- return true;
- }
- /// Retrieve the instance methods found by this visitor.
- ArrayRef<ObjCMethodDecl *> getInstanceMethods() const {
- return InstanceMethods;
- }
- /// Retrieve the instance methods found by this visitor.
- ArrayRef<ObjCMethodDecl *> getFactoryMethods() const {
- return FactoryMethods;
- }
- unsigned getInstanceBits() const { return InstanceBits; }
- unsigned getFactoryBits() const { return FactoryBits; }
- bool instanceHasMoreThanOneDecl() const {
- return InstanceHasMoreThanOneDecl;
- }
- bool factoryHasMoreThanOneDecl() const { return FactoryHasMoreThanOneDecl; }
- };
- } // namespace serialization
- } // namespace clang
- /// Add the given set of methods to the method list.
- static void addMethodsToPool(Sema &S, ArrayRef<ObjCMethodDecl *> Methods,
- ObjCMethodList &List) {
- for (unsigned I = 0, N = Methods.size(); I != N; ++I) {
- S.addMethodToGlobalList(&List, Methods[I]);
- }
- }
- void ASTReader::ReadMethodPool(Selector Sel) {
- // Get the selector generation and update it to the current generation.
- unsigned &Generation = SelectorGeneration[Sel];
- unsigned PriorGeneration = Generation;
- Generation = getGeneration();
- SelectorOutOfDate[Sel] = false;
- // Search for methods defined with this selector.
- ++NumMethodPoolLookups;
- ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration);
- ModuleMgr.visit(Visitor);
- if (Visitor.getInstanceMethods().empty() &&
- Visitor.getFactoryMethods().empty())
- return;
- ++NumMethodPoolHits;
- if (!getSema())
- return;
- Sema &S = *getSema();
- Sema::GlobalMethodPool::iterator Pos
- = S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first;
- Pos->second.first.setBits(Visitor.getInstanceBits());
- Pos->second.first.setHasMoreThanOneDecl(Visitor.instanceHasMoreThanOneDecl());
- Pos->second.second.setBits(Visitor.getFactoryBits());
- Pos->second.second.setHasMoreThanOneDecl(Visitor.factoryHasMoreThanOneDecl());
- // Add methods to the global pool *after* setting hasMoreThanOneDecl, since
- // when building a module we keep every method individually and may need to
- // update hasMoreThanOneDecl as we add the methods.
- addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first);
- addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second);
- }
- void ASTReader::updateOutOfDateSelector(Selector Sel) {
- if (SelectorOutOfDate[Sel])
- ReadMethodPool(Sel);
- }
- void ASTReader::ReadKnownNamespaces(
- SmallVectorImpl<NamespaceDecl *> &Namespaces) {
- Namespaces.clear();
- for (unsigned I = 0, N = KnownNamespaces.size(); I != N; ++I) {
- if (NamespaceDecl *Namespace
- = dyn_cast_or_null<NamespaceDecl>(GetDecl(KnownNamespaces[I])))
- Namespaces.push_back(Namespace);
- }
- }
- void ASTReader::ReadUndefinedButUsed(
- llvm::MapVector<NamedDecl *, SourceLocation> &Undefined) {
- for (unsigned Idx = 0, N = UndefinedButUsed.size(); Idx != N;) {
- NamedDecl *D = cast<NamedDecl>(GetDecl(UndefinedButUsed[Idx++]));
- SourceLocation Loc =
- SourceLocation::getFromRawEncoding(UndefinedButUsed[Idx++]);
- Undefined.insert(std::make_pair(D, Loc));
- }
- }
- void ASTReader::ReadMismatchingDeleteExpressions(llvm::MapVector<
- FieldDecl *, llvm::SmallVector<std::pair<SourceLocation, bool>, 4>> &
- Exprs) {
- for (unsigned Idx = 0, N = DelayedDeleteExprs.size(); Idx != N;) {
- FieldDecl *FD = cast<FieldDecl>(GetDecl(DelayedDeleteExprs[Idx++]));
- uint64_t Count = DelayedDeleteExprs[Idx++];
- for (uint64_t C = 0; C < Count; ++C) {
- SourceLocation DeleteLoc =
- SourceLocation::getFromRawEncoding(DelayedDeleteExprs[Idx++]);
- const bool IsArrayForm = DelayedDeleteExprs[Idx++];
- Exprs[FD].push_back(std::make_pair(DeleteLoc, IsArrayForm));
- }
- }
- }
- void ASTReader::ReadTentativeDefinitions(
- SmallVectorImpl<VarDecl *> &TentativeDefs) {
- for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) {
- VarDecl *Var = dyn_cast_or_null<VarDecl>(GetDecl(TentativeDefinitions[I]));
- if (Var)
- TentativeDefs.push_back(Var);
- }
- TentativeDefinitions.clear();
- }
- void ASTReader::ReadUnusedFileScopedDecls(
- SmallVectorImpl<const DeclaratorDecl *> &Decls) {
- for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) {
- DeclaratorDecl *D
- = dyn_cast_or_null<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I]));
- if (D)
- Decls.push_back(D);
- }
- UnusedFileScopedDecls.clear();
- }
- void ASTReader::ReadDelegatingConstructors(
- SmallVectorImpl<CXXConstructorDecl *> &Decls) {
- for (unsigned I = 0, N = DelegatingCtorDecls.size(); I != N; ++I) {
- CXXConstructorDecl *D
- = dyn_cast_or_null<CXXConstructorDecl>(GetDecl(DelegatingCtorDecls[I]));
- if (D)
- Decls.push_back(D);
- }
- DelegatingCtorDecls.clear();
- }
- void ASTReader::ReadExtVectorDecls(SmallVectorImpl<TypedefNameDecl *> &Decls) {
- for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I) {
- TypedefNameDecl *D
- = dyn_cast_or_null<TypedefNameDecl>(GetDecl(ExtVectorDecls[I]));
- if (D)
- Decls.push_back(D);
- }
- ExtVectorDecls.clear();
- }
- void ASTReader::ReadUnusedLocalTypedefNameCandidates(
- llvm::SmallSetVector<const TypedefNameDecl *, 4> &Decls) {
- for (unsigned I = 0, N = UnusedLocalTypedefNameCandidates.size(); I != N;
- ++I) {
- TypedefNameDecl *D = dyn_cast_or_null<TypedefNameDecl>(
- GetDecl(UnusedLocalTypedefNameCandidates[I]));
- if (D)
- Decls.insert(D);
- }
- UnusedLocalTypedefNameCandidates.clear();
- }
- void ASTReader::ReadReferencedSelectors(
- SmallVectorImpl<std::pair<Selector, SourceLocation>> &Sels) {
- if (ReferencedSelectorsData.empty())
- return;
- // If there are @selector references added them to its pool. This is for
- // implementation of -Wselector.
- unsigned int DataSize = ReferencedSelectorsData.size()-1;
- unsigned I = 0;
- while (I < DataSize) {
- Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]);
- SourceLocation SelLoc
- = SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]);
- Sels.push_back(std::make_pair(Sel, SelLoc));
- }
- ReferencedSelectorsData.clear();
- }
- void ASTReader::ReadWeakUndeclaredIdentifiers(
- SmallVectorImpl<std::pair<IdentifierInfo *, WeakInfo>> &WeakIDs) {
- if (WeakUndeclaredIdentifiers.empty())
- return;
- for (unsigned I = 0, N = WeakUndeclaredIdentifiers.size(); I < N; /*none*/) {
- IdentifierInfo *WeakId
- = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]);
- IdentifierInfo *AliasId
- = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]);
- SourceLocation Loc
- = SourceLocation::getFromRawEncoding(WeakUndeclaredIdentifiers[I++]);
- bool Used = WeakUndeclaredIdentifiers[I++];
- WeakInfo WI(AliasId, Loc);
- WI.setUsed(Used);
- WeakIDs.push_back(std::make_pair(WeakId, WI));
- }
- WeakUndeclaredIdentifiers.clear();
- }
- void ASTReader::ReadUsedVTables(SmallVectorImpl<ExternalVTableUse> &VTables) {
- for (unsigned Idx = 0, N = VTableUses.size(); Idx < N; /* In loop */) {
- ExternalVTableUse VT;
- VT.Record = dyn_cast_or_null<CXXRecordDecl>(GetDecl(VTableUses[Idx++]));
- VT.Location = SourceLocation::getFromRawEncoding(VTableUses[Idx++]);
- VT.DefinitionRequired = VTableUses[Idx++];
- VTables.push_back(VT);
- }
- VTableUses.clear();
- }
- void ASTReader::ReadPendingInstantiations(
- SmallVectorImpl<std::pair<ValueDecl *, SourceLocation>> &Pending) {
- for (unsigned Idx = 0, N = PendingInstantiations.size(); Idx < N;) {
- ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++]));
- SourceLocation Loc
- = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]);
- Pending.push_back(std::make_pair(D, Loc));
- }
- PendingInstantiations.clear();
- }
- void ASTReader::ReadLateParsedTemplates(
- llvm::MapVector<const FunctionDecl *, std::unique_ptr<LateParsedTemplate>>
- &LPTMap) {
- for (unsigned Idx = 0, N = LateParsedTemplates.size(); Idx < N;
- /* In loop */) {
- FunctionDecl *FD = cast<FunctionDecl>(GetDecl(LateParsedTemplates[Idx++]));
- auto LT = std::make_unique<LateParsedTemplate>();
- LT->D = GetDecl(LateParsedTemplates[Idx++]);
- ModuleFile *F = getOwningModuleFile(LT->D);
- assert(F && "No module");
- unsigned TokN = LateParsedTemplates[Idx++];
- LT->Toks.reserve(TokN);
- for (unsigned T = 0; T < TokN; ++T)
- LT->Toks.push_back(ReadToken(*F, LateParsedTemplates, Idx));
- LPTMap.insert(std::make_pair(FD, std::move(LT)));
- }
- LateParsedTemplates.clear();
- }
- void ASTReader::LoadSelector(Selector Sel) {
- // It would be complicated to avoid reading the methods anyway. So don't.
- ReadMethodPool(Sel);
- }
- void ASTReader::SetIdentifierInfo(IdentifierID ID, IdentifierInfo *II) {
- assert(ID && "Non-zero identifier ID required");
- assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range");
- IdentifiersLoaded[ID - 1] = II;
- if (DeserializationListener)
- DeserializationListener->IdentifierRead(ID, II);
- }
- /// Set the globally-visible declarations associated with the given
- /// identifier.
- ///
- /// If the AST reader is currently in a state where the given declaration IDs
- /// cannot safely be resolved, they are queued until it is safe to resolve
- /// them.
- ///
- /// \param II an IdentifierInfo that refers to one or more globally-visible
- /// declarations.
- ///
- /// \param DeclIDs the set of declaration IDs with the name @p II that are
- /// visible at global scope.
- ///
- /// \param Decls if non-null, this vector will be populated with the set of
- /// deserialized declarations. These declarations will not be pushed into
- /// scope.
- void
- ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II,
- const SmallVectorImpl<uint32_t> &DeclIDs,
- SmallVectorImpl<Decl *> *Decls) {
- if (NumCurrentElementsDeserializing && !Decls) {
- PendingIdentifierInfos[II].append(DeclIDs.begin(), DeclIDs.end());
- return;
- }
- for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) {
- if (!SemaObj) {
- // Queue this declaration so that it will be added to the
- // translation unit scope and identifier's declaration chain
- // once a Sema object is known.
- PreloadedDeclIDs.push_back(DeclIDs[I]);
- continue;
- }
- NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I]));
- // If we're simply supposed to record the declarations, do so now.
- if (Decls) {
- Decls->push_back(D);
- continue;
- }
- // Introduce this declaration into the translation-unit scope
- // and add it to the declaration chain for this identifier, so
- // that (unqualified) name lookup will find it.
- pushExternalDeclIntoScope(D, II);
- }
- }
- IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) {
- if (ID == 0)
- return nullptr;
- if (IdentifiersLoaded.empty()) {
- Error("no identifier table in AST file");
- return nullptr;
- }
- ID -= 1;
- if (!IdentifiersLoaded[ID]) {
- GlobalIdentifierMapType::iterator I = GlobalIdentifierMap.find(ID + 1);
- assert(I != GlobalIdentifierMap.end() && "Corrupted global identifier map");
- ModuleFile *M = I->second;
- unsigned Index = ID - M->BaseIdentifierID;
- const char *Str = M->IdentifierTableData + M->IdentifierOffsets[Index];
- // All of the strings in the AST file are preceded by a 16-bit length.
- // Extract that 16-bit length to avoid having to execute strlen().
- // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as
- // unsigned integers. This is important to avoid integer overflow when
- // we cast them to 'unsigned'.
- const unsigned char *StrLenPtr = (const unsigned char*) Str - 2;
- unsigned StrLen = (((unsigned) StrLenPtr[0])
- | (((unsigned) StrLenPtr[1]) << 8)) - 1;
- auto &II = PP.getIdentifierTable().get(StringRef(Str, StrLen));
- IdentifiersLoaded[ID] = &II;
- markIdentifierFromAST(*this, II);
- if (DeserializationListener)
- DeserializationListener->IdentifierRead(ID + 1, &II);
- }
- return IdentifiersLoaded[ID];
- }
- IdentifierInfo *ASTReader::getLocalIdentifier(ModuleFile &M, unsigned LocalID) {
- return DecodeIdentifierInfo(getGlobalIdentifierID(M, LocalID));
- }
- IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) {
- if (LocalID < NUM_PREDEF_IDENT_IDS)
- return LocalID;
- if (!M.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(M);
- ContinuousRangeMap<uint32_t, int, 2>::iterator I
- = M.IdentifierRemap.find(LocalID - NUM_PREDEF_IDENT_IDS);
- assert(I != M.IdentifierRemap.end()
- && "Invalid index into identifier index remap");
- return LocalID + I->second;
- }
- MacroInfo *ASTReader::getMacro(MacroID ID) {
- if (ID == 0)
- return nullptr;
- if (MacrosLoaded.empty()) {
- Error("no macro table in AST file");
- return nullptr;
- }
- ID -= NUM_PREDEF_MACRO_IDS;
- if (!MacrosLoaded[ID]) {
- GlobalMacroMapType::iterator I
- = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS);
- assert(I != GlobalMacroMap.end() && "Corrupted global macro map");
- ModuleFile *M = I->second;
- unsigned Index = ID - M->BaseMacroID;
- MacrosLoaded[ID] = ReadMacroRecord(*M, M->MacroOffsets[Index]);
- if (DeserializationListener)
- DeserializationListener->MacroRead(ID + NUM_PREDEF_MACRO_IDS,
- MacrosLoaded[ID]);
- }
- return MacrosLoaded[ID];
- }
- MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) {
- if (LocalID < NUM_PREDEF_MACRO_IDS)
- return LocalID;
- if (!M.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(M);
- ContinuousRangeMap<uint32_t, int, 2>::iterator I
- = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS);
- assert(I != M.MacroRemap.end() && "Invalid index into macro index remap");
- return LocalID + I->second;
- }
- serialization::SubmoduleID
- ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) {
- if (LocalID < NUM_PREDEF_SUBMODULE_IDS)
- return LocalID;
- if (!M.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(M);
- ContinuousRangeMap<uint32_t, int, 2>::iterator I
- = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS);
- assert(I != M.SubmoduleRemap.end()
- && "Invalid index into submodule index remap");
- return LocalID + I->second;
- }
- Module *ASTReader::getSubmodule(SubmoduleID GlobalID) {
- if (GlobalID < NUM_PREDEF_SUBMODULE_IDS) {
- assert(GlobalID == 0 && "Unhandled global submodule ID");
- return nullptr;
- }
- if (GlobalID > SubmodulesLoaded.size()) {
- Error("submodule ID out of range in AST file");
- return nullptr;
- }
- return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS];
- }
- Module *ASTReader::getModule(unsigned ID) {
- return getSubmodule(ID);
- }
- bool ASTReader::DeclIsFromPCHWithObjectFile(const Decl *D) {
- ModuleFile *MF = getOwningModuleFile(D);
- return MF && MF->PCHHasObjectFile;
- }
- ModuleFile *ASTReader::getLocalModuleFile(ModuleFile &F, unsigned ID) {
- if (ID & 1) {
- // It's a module, look it up by submodule ID.
- auto I = GlobalSubmoduleMap.find(getGlobalSubmoduleID(F, ID >> 1));
- return I == GlobalSubmoduleMap.end() ? nullptr : I->second;
- } else {
- // It's a prefix (preamble, PCH, ...). Look it up by index.
- unsigned IndexFromEnd = ID >> 1;
- assert(IndexFromEnd && "got reference to unknown module file");
- return getModuleManager().pch_modules().end()[-IndexFromEnd];
- }
- }
- unsigned ASTReader::getModuleFileID(ModuleFile *F) {
- if (!F)
- return 1;
- // For a file representing a module, use the submodule ID of the top-level
- // module as the file ID. For any other kind of file, the number of such
- // files loaded beforehand will be the same on reload.
- // FIXME: Is this true even if we have an explicit module file and a PCH?
- if (F->isModule())
- return ((F->BaseSubmoduleID + NUM_PREDEF_SUBMODULE_IDS) << 1) | 1;
- auto PCHModules = getModuleManager().pch_modules();
- auto I = llvm::find(PCHModules, F);
- assert(I != PCHModules.end() && "emitting reference to unknown file");
- return (I - PCHModules.end()) << 1;
- }
- llvm::Optional<ExternalASTSource::ASTSourceDescriptor>
- ASTReader::getSourceDescriptor(unsigned ID) {
- if (const Module *M = getSubmodule(ID))
- return ExternalASTSource::ASTSourceDescriptor(*M);
- // If there is only a single PCH, return it instead.
- // Chained PCH are not supported.
- const auto &PCHChain = ModuleMgr.pch_modules();
- if (std::distance(std::begin(PCHChain), std::end(PCHChain))) {
- ModuleFile &MF = ModuleMgr.getPrimaryModule();
- StringRef ModuleName = llvm::sys::path::filename(MF.OriginalSourceFileName);
- StringRef FileName = llvm::sys::path::filename(MF.FileName);
- return ASTReader::ASTSourceDescriptor(ModuleName, MF.OriginalDir, FileName,
- MF.Signature);
- }
- return None;
- }
- ExternalASTSource::ExtKind ASTReader::hasExternalDefinitions(const Decl *FD) {
- auto I = DefinitionSource.find(FD);
- if (I == DefinitionSource.end())
- return EK_ReplyHazy;
- return I->second ? EK_Never : EK_Always;
- }
- Selector ASTReader::getLocalSelector(ModuleFile &M, unsigned LocalID) {
- return DecodeSelector(getGlobalSelectorID(M, LocalID));
- }
- Selector ASTReader::DecodeSelector(serialization::SelectorID ID) {
- if (ID == 0)
- return Selector();
- if (ID > SelectorsLoaded.size()) {
- Error("selector ID out of range in AST file");
- return Selector();
- }
- if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == nullptr) {
- // Load this selector from the selector table.
- GlobalSelectorMapType::iterator I = GlobalSelectorMap.find(ID);
- assert(I != GlobalSelectorMap.end() && "Corrupted global selector map");
- ModuleFile &M = *I->second;
- ASTSelectorLookupTrait Trait(*this, M);
- unsigned Idx = ID - M.BaseSelectorID - NUM_PREDEF_SELECTOR_IDS;
- SelectorsLoaded[ID - 1] =
- Trait.ReadKey(M.SelectorLookupTableData + M.SelectorOffsets[Idx], 0);
- if (DeserializationListener)
- DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]);
- }
- return SelectorsLoaded[ID - 1];
- }
- Selector ASTReader::GetExternalSelector(serialization::SelectorID ID) {
- return DecodeSelector(ID);
- }
- uint32_t ASTReader::GetNumExternalSelectors() {
- // ID 0 (the null selector) is considered an external selector.
- return getTotalNumSelectors() + 1;
- }
- serialization::SelectorID
- ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const {
- if (LocalID < NUM_PREDEF_SELECTOR_IDS)
- return LocalID;
- if (!M.ModuleOffsetMap.empty())
- ReadModuleOffsetMap(M);
- ContinuousRangeMap<uint32_t, int, 2>::iterator I
- = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS);
- assert(I != M.SelectorRemap.end()
- && "Invalid index into selector index remap");
- return LocalID + I->second;
- }
- DeclarationName
- ASTReader::ReadDeclarationName(ModuleFile &F,
- const RecordData &Record, unsigned &Idx) {
- ASTContext &Context = getContext();
- DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++];
- switch (Kind) {
- case DeclarationName::Identifier:
- return DeclarationName(GetIdentifierInfo(F, Record, Idx));
- case DeclarationName::ObjCZeroArgSelector:
- case DeclarationName::ObjCOneArgSelector:
- case DeclarationName::ObjCMultiArgSelector:
- return DeclarationName(ReadSelector(F, Record, Idx));
- case DeclarationName::CXXConstructorName:
- return Context.DeclarationNames.getCXXConstructorName(
- Context.getCanonicalType(readType(F, Record, Idx)));
- case DeclarationName::CXXDestructorName:
- return Context.DeclarationNames.getCXXDestructorName(
- Context.getCanonicalType(readType(F, Record, Idx)));
- case DeclarationName::CXXDeductionGuideName:
- return Context.DeclarationNames.getCXXDeductionGuideName(
- ReadDeclAs<TemplateDecl>(F, Record, Idx));
- case DeclarationName::CXXConversionFunctionName:
- return Context.DeclarationNames.getCXXConversionFunctionName(
- Context.getCanonicalType(readType(F, Record, Idx)));
- case DeclarationName::CXXOperatorName:
- return Context.DeclarationNames.getCXXOperatorName(
- (OverloadedOperatorKind)Record[Idx++]);
- case DeclarationName::CXXLiteralOperatorName:
- return Context.DeclarationNames.getCXXLiteralOperatorName(
- GetIdentifierInfo(F, Record, Idx));
- case DeclarationName::CXXUsingDirective:
- return DeclarationName::getUsingDirectiveName();
- }
- llvm_unreachable("Invalid NameKind!");
- }
- void ASTReader::ReadDeclarationNameLoc(ModuleFile &F,
- DeclarationNameLoc &DNLoc,
- DeclarationName Name,
- const RecordData &Record, unsigned &Idx) {
- switch (Name.getNameKind()) {
- case DeclarationName::CXXConstructorName:
- case DeclarationName::CXXDestructorName:
- case DeclarationName::CXXConversionFunctionName:
- DNLoc.NamedType.TInfo = GetTypeSourceInfo(F, Record, Idx);
- break;
- case DeclarationName::CXXOperatorName:
- DNLoc.CXXOperatorName.BeginOpNameLoc
- = ReadSourceLocation(F, Record, Idx).getRawEncoding();
- DNLoc.CXXOperatorName.EndOpNameLoc
- = ReadSourceLocation(F, Record, Idx).getRawEncoding();
- break;
- case DeclarationName::CXXLiteralOperatorName:
- DNLoc.CXXLiteralOperatorName.OpNameLoc
- = ReadSourceLocation(F, Record, Idx).getRawEncoding();
- break;
- case DeclarationName::Identifier:
- case DeclarationName::ObjCZeroArgSelector:
- case DeclarationName::ObjCOneArgSelector:
- case DeclarationName::ObjCMultiArgSelector:
- case DeclarationName::CXXUsingDirective:
- case DeclarationName::CXXDeductionGuideName:
- break;
- }
- }
- void ASTReader::ReadDeclarationNameInfo(ModuleFile &F,
- DeclarationNameInfo &NameInfo,
- const RecordData &Record, unsigned &Idx) {
- NameInfo.setName(ReadDeclarationName(F, Record, Idx));
- NameInfo.setLoc(ReadSourceLocation(F, Record, Idx));
- DeclarationNameLoc DNLoc;
- ReadDeclarationNameLoc(F, DNLoc, NameInfo.getName(), Record, Idx);
- NameInfo.setInfo(DNLoc);
- }
- void ASTReader::ReadQualifierInfo(ModuleFile &F, QualifierInfo &Info,
- const RecordData &Record, unsigned &Idx) {
- Info.QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx);
- unsigned NumTPLists = Record[Idx++];
- Info.NumTemplParamLists = NumTPLists;
- if (NumTPLists) {
- Info.TemplParamLists =
- new (getContext()) TemplateParameterList *[NumTPLists];
- for (unsigned i = 0; i != NumTPLists; ++i)
- Info.TemplParamLists[i] = ReadTemplateParameterList(F, Record, Idx);
- }
- }
- TemplateName
- ASTReader::ReadTemplateName(ModuleFile &F, const RecordData &Record,
- unsigned &Idx) {
- ASTContext &Context = getContext();
- TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++];
- switch (Kind) {
- case TemplateName::Template:
- return TemplateName(ReadDeclAs<TemplateDecl>(F, Record, Idx));
- case TemplateName::OverloadedTemplate: {
- unsigned size = Record[Idx++];
- UnresolvedSet<8> Decls;
- while (size--)
- Decls.addDecl(ReadDeclAs<NamedDecl>(F, Record, Idx));
- return Context.getOverloadedTemplateName(Decls.begin(), Decls.end());
- }
- case TemplateName::AssumedTemplate: {
- DeclarationName Name = ReadDeclarationName(F, Record, Idx);
- return Context.getAssumedTemplateName(Name);
- }
- case TemplateName::QualifiedTemplate: {
- NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx);
- bool hasTemplKeyword = Record[Idx++];
- TemplateDecl *Template = ReadDeclAs<TemplateDecl>(F, Record, Idx);
- return Context.getQualifiedTemplateName(NNS, hasTemplKeyword, Template);
- }
- case TemplateName::DependentTemplate: {
- NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx);
- if (Record[Idx++]) // isIdentifier
- return Context.getDependentTemplateName(NNS,
- GetIdentifierInfo(F, Record,
- Idx));
- return Context.getDependentTemplateName(NNS,
- (OverloadedOperatorKind)Record[Idx++]);
- }
- case TemplateName::SubstTemplateTemplateParm: {
- TemplateTemplateParmDecl *param
- = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx);
- if (!param) return TemplateName();
- TemplateName replacement = ReadTemplateName(F, Record, Idx);
- return Context.getSubstTemplateTemplateParm(param, replacement);
- }
- case TemplateName::SubstTemplateTemplateParmPack: {
- TemplateTemplateParmDecl *Param
- = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx);
- if (!Param)
- return TemplateName();
- TemplateArgument ArgPack = ReadTemplateArgument(F, Record, Idx);
- if (ArgPack.getKind() != TemplateArgument::Pack)
- return TemplateName();
- return Context.getSubstTemplateTemplateParmPack(Param, ArgPack);
- }
- }
- llvm_unreachable("Unhandled template name kind!");
- }
- TemplateArgument ASTReader::ReadTemplateArgument(ModuleFile &F,
- const RecordData &Record,
- unsigned &Idx,
- bool Canonicalize) {
- ASTContext &Context = getContext();
- if (Canonicalize) {
- // The caller wants a canonical template argument. Sometimes the AST only
- // wants template arguments in canonical form (particularly as the template
- // argument lists of template specializations) so ensure we preserve that
- // canonical form across serialization.
- TemplateArgument Arg = ReadTemplateArgument(F, Record, Idx, false);
- return Context.getCanonicalTemplateArgument(Arg);
- }
- TemplateArgument::ArgKind Kind = (TemplateArgument::ArgKind)Record[Idx++];
- switch (Kind) {
- case TemplateArgument::Null:
- return TemplateArgument();
- case TemplateArgument::Type:
- return TemplateArgument(readType(F, Record, Idx));
- case TemplateArgument::Declaration: {
- ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx);
- return TemplateArgument(D, readType(F, Record, Idx));
- }
- case TemplateArgument::NullPtr:
- return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true);
- case TemplateArgument::Integral: {
- llvm::APSInt Value = ReadAPSInt(Record, Idx);
- QualType T = readType(F, Record, Idx);
- return TemplateArgument(Context, Value, T);
- }
- case TemplateArgument::Template:
- return TemplateArgument(ReadTemplateName(F, Record, Idx));
- case TemplateArgument::TemplateExpansion: {
- TemplateName Name = ReadTemplateName(F, Record, Idx);
- Optional<unsigned> NumTemplateExpansions;
- if (unsigned NumExpansions = Record[Idx++])
- NumTemplateExpansions = NumExpansions - 1;
- return TemplateArgument(Name, NumTemplateExpansions);
- }
- case TemplateArgument::Expression:
- return TemplateArgument(ReadExpr(F));
- case TemplateArgument::Pack: {
- unsigned NumArgs = Record[Idx++];
- TemplateArgument *Args = new (Context) TemplateArgument[NumArgs];
- for (unsigned I = 0; I != NumArgs; ++I)
- Args[I] = ReadTemplateArgument(F, Record, Idx);
- return TemplateArgument(llvm::makeArrayRef(Args, NumArgs));
- }
- }
- llvm_unreachable("Unhandled template argument kind!");
- }
- TemplateParameterList *
- ASTReader::ReadTemplateParameterList(ModuleFile &F,
- const RecordData &Record, unsigned &Idx) {
- SourceLocation TemplateLoc = ReadSourceLocation(F, Record, Idx);
- SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Idx);
- SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Idx);
- unsigned NumParams = Record[Idx++];
- SmallVector<NamedDecl *, 16> Params;
- Params.reserve(NumParams);
- while (NumParams--)
- Params.push_back(ReadDeclAs<NamedDecl>(F, Record, Idx));
- bool HasRequiresClause = Record[Idx++];
- Expr *RequiresClause = HasRequiresClause ? ReadExpr(F) : nullptr;
- TemplateParameterList *TemplateParams = TemplateParameterList::Create(
- getContext(), TemplateLoc, LAngleLoc, Params, RAngleLoc, RequiresClause);
- return TemplateParams;
- }
- void
- ASTReader::
- ReadTemplateArgumentList(SmallVectorImpl<TemplateArgument> &TemplArgs,
- ModuleFile &F, const RecordData &Record,
- unsigned &Idx, bool Canonicalize) {
- unsigned NumTemplateArgs = Record[Idx++];
- TemplArgs.reserve(NumTemplateArgs);
- while (NumTemplateArgs--)
- TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx, Canonicalize));
- }
- /// Read a UnresolvedSet structure.
- void ASTReader::ReadUnresolvedSet(ModuleFile &F, LazyASTUnresolvedSet &Set,
- const RecordData &Record, unsigned &Idx) {
- unsigned NumDecls = Record[Idx++];
- Set.reserve(getContext(), NumDecls);
- while (NumDecls--) {
- DeclID ID = ReadDeclID(F, Record, Idx);
- AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
- Set.addLazyDecl(getContext(), ID, AS);
- }
- }
- CXXBaseSpecifier
- ASTReader::ReadCXXBaseSpecifier(ModuleFile &F,
- const RecordData &Record, unsigned &Idx) {
- bool isVirtual = static_cast<bool>(Record[Idx++]);
- bool isBaseOfClass = static_cast<bool>(Record[Idx++]);
- AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]);
- bool inheritConstructors = static_cast<bool>(Record[Idx++]);
- TypeSourceInfo *TInfo = GetTypeSourceInfo(F, Record, Idx);
- SourceRange Range = ReadSourceRange(F, Record, Idx);
- SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Idx);
- CXXBaseSpecifier Result(Range, isVirtual, isBaseOfClass, AS, TInfo,
- EllipsisLoc);
- Result.setInheritConstructors(inheritConstructors);
- return Result;
- }
- CXXCtorInitializer **
- ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record,
- unsigned &Idx) {
- ASTContext &Context = getContext();
- unsigned NumInitializers = Record[Idx++];
- assert(NumInitializers && "wrote ctor initializers but have no inits");
- auto **CtorInitializers = new (Context) CXXCtorInitializer*[NumInitializers];
- for (unsigned i = 0; i != NumInitializers; ++i) {
- TypeSourceInfo *TInfo = nullptr;
- bool IsBaseVirtual = false;
- FieldDecl *Member = nullptr;
- IndirectFieldDecl *IndirectMember = nullptr;
- CtorInitializerType Type = (CtorInitializerType)Record[Idx++];
- switch (Type) {
- case CTOR_INITIALIZER_BASE:
- TInfo = GetTypeSourceInfo(F, Record, Idx);
- IsBaseVirtual = Record[Idx++];
- break;
- case CTOR_INITIALIZER_DELEGATING:
- TInfo = GetTypeSourceInfo(F, Record, Idx);
- break;
- case CTOR_INITIALIZER_MEMBER:
- Member = ReadDeclAs<FieldDecl>(F, Record, Idx);
- break;
- case CTOR_INITIALIZER_INDIRECT_MEMBER:
- IndirectMember = ReadDeclAs<IndirectFieldDecl>(F, Record, Idx);
- break;
- }
- SourceLocation MemberOrEllipsisLoc = ReadSourceLocation(F, Record, Idx);
- Expr *Init = ReadExpr(F);
- SourceLocation LParenLoc = ReadSourceLocation(F, Record, Idx);
- SourceLocation RParenLoc = ReadSourceLocation(F, Record, Idx);
- CXXCtorInitializer *BOMInit;
- if (Type == CTOR_INITIALIZER_BASE)
- BOMInit = new (Context)
- CXXCtorInitializer(Context, TInfo, IsBaseVirtual, LParenLoc, Init,
- RParenLoc, MemberOrEllipsisLoc);
- else if (Type == CTOR_INITIALIZER_DELEGATING)
- BOMInit = new (Context)
- CXXCtorInitializer(Context, TInfo, LParenLoc, Init, RParenLoc);
- else if (Member)
- BOMInit = new (Context)
- CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc, LParenLoc,
- Init, RParenLoc);
- else
- BOMInit = new (Context)
- CXXCtorInitializer(Context, IndirectMember, MemberOrEllipsisLoc,
- LParenLoc, Init, RParenLoc);
- if (/*IsWritten*/Record[Idx++]) {
- unsigned SourceOrder = Record[Idx++];
- BOMInit->setSourceOrder(SourceOrder);
- }
- CtorInitializers[i] = BOMInit;
- }
- return CtorInitializers;
- }
- NestedNameSpecifier *
- ASTReader::ReadNestedNameSpecifier(ModuleFile &F,
- const RecordData &Record, unsigned &Idx) {
- ASTContext &Context = getContext();
- unsigned N = Record[Idx++];
- NestedNameSpecifier *NNS = nullptr, *Prev = nullptr;
- for (unsigned I = 0; I != N; ++I) {
- NestedNameSpecifier::SpecifierKind Kind
- = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
- switch (Kind) {
- case NestedNameSpecifier::Identifier: {
- IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx);
- NNS = NestedNameSpecifier::Create(Context, Prev, II);
- break;
- }
- case NestedNameSpecifier::Namespace: {
- NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx);
- NNS = NestedNameSpecifier::Create(Context, Prev, NS);
- break;
- }
- case NestedNameSpecifier::NamespaceAlias: {
- NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx);
- NNS = NestedNameSpecifier::Create(Context, Prev, Alias);
- break;
- }
- case NestedNameSpecifier::TypeSpec:
- case NestedNameSpecifier::TypeSpecWithTemplate: {
- const Type *T = readType(F, Record, Idx).getTypePtrOrNull();
- if (!T)
- return nullptr;
- bool Template = Record[Idx++];
- NNS = NestedNameSpecifier::Create(Context, Prev, Template, T);
- break;
- }
- case NestedNameSpecifier::Global:
- NNS = NestedNameSpecifier::GlobalSpecifier(Context);
- // No associated value, and there can't be a prefix.
- break;
- case NestedNameSpecifier::Super: {
- CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(F, Record, Idx);
- NNS = NestedNameSpecifier::SuperSpecifier(Context, RD);
- break;
- }
- }
- Prev = NNS;
- }
- return NNS;
- }
- NestedNameSpecifierLoc
- ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record,
- unsigned &Idx) {
- ASTContext &Context = getContext();
- unsigned N = Record[Idx++];
- NestedNameSpecifierLocBuilder Builder;
- for (unsigned I = 0; I != N; ++I) {
- NestedNameSpecifier::SpecifierKind Kind
- = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
- switch (Kind) {
- case NestedNameSpecifier::Identifier: {
- IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx);
- SourceRange Range = ReadSourceRange(F, Record, Idx);
- Builder.Extend(Context, II, Range.getBegin(), Range.getEnd());
- break;
- }
- case NestedNameSpecifier::Namespace: {
- NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx);
- SourceRange Range = ReadSourceRange(F, Record, Idx);
- Builder.Extend(Context, NS, Range.getBegin(), Range.getEnd());
- break;
- }
- case NestedNameSpecifier::NamespaceAlias: {
- NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx);
- SourceRange Range = ReadSourceRange(F, Record, Idx);
- Builder.Extend(Context, Alias, Range.getBegin(), Range.getEnd());
- break;
- }
- case NestedNameSpecifier::TypeSpec:
- case NestedNameSpecifier::TypeSpecWithTemplate: {
- bool Template = Record[Idx++];
- TypeSourceInfo *T = GetTypeSourceInfo(F, Record, Idx);
- if (!T)
- return NestedNameSpecifierLoc();
- SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx);
- // FIXME: 'template' keyword location not saved anywhere, so we fake it.
- Builder.Extend(Context,
- Template? T->getTypeLoc().getBeginLoc() : SourceLocation(),
- T->getTypeLoc(), ColonColonLoc);
- break;
- }
- case NestedNameSpecifier::Global: {
- SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx);
- Builder.MakeGlobal(Context, ColonColonLoc);
- break;
- }
- case NestedNameSpecifier::Super: {
- CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(F, Record, Idx);
- SourceRange Range = ReadSourceRange(F, Record, Idx);
- Builder.MakeSuper(Context, RD, Range.getBegin(), Range.getEnd());
- break;
- }
- }
- }
- return Builder.getWithLocInContext(Context);
- }
- SourceRange
- ASTReader::ReadSourceRange(ModuleFile &F, const RecordData &Record,
- unsigned &Idx) {
- SourceLocation beg = ReadSourceLocation(F, Record, Idx);
- SourceLocation end = ReadSourceLocation(F, Record, Idx);
- return SourceRange(beg, end);
- }
- static FixedPointSemantics
- ReadFixedPointSemantics(const SmallVectorImpl<uint64_t> &Record,
- unsigned &Idx) {
- unsigned Width = Record[Idx++];
- unsigned Scale = Record[Idx++];
- uint64_t Tmp = Record[Idx++];
- bool IsSigned = Tmp & 0x1;
- bool IsSaturated = Tmp & 0x2;
- bool HasUnsignedPadding = Tmp & 0x4;
- return FixedPointSemantics(Width, Scale, IsSigned, IsSaturated,
- HasUnsignedPadding);
- }
- APValue ASTReader::ReadAPValue(const RecordData &Record, unsigned &Idx) {
- unsigned Kind = Record[Idx++];
- switch (Kind) {
- case APValue::None:
- return APValue();
- case APValue::Indeterminate:
- return APValue::IndeterminateValue();
- case APValue::Int:
- return APValue(ReadAPSInt(Record, Idx));
- case APValue::Float: {
- const llvm::fltSemantics &FloatSema = llvm::APFloatBase::EnumToSemantics(
- static_cast<llvm::APFloatBase::Semantics>(Record[Idx++]));
- return APValue(ReadAPFloat(Record, FloatSema, Idx));
- }
- case APValue::FixedPoint: {
- FixedPointSemantics FPSema = ReadFixedPointSemantics(Record, Idx);
- return APValue(APFixedPoint(ReadAPInt(Record, Idx), FPSema));
- }
- case APValue::ComplexInt: {
- llvm::APSInt First = ReadAPSInt(Record, Idx);
- return APValue(std::move(First), ReadAPSInt(Record, Idx));
- }
- case APValue::ComplexFloat: {
- const llvm::fltSemantics &FloatSema1 = llvm::APFloatBase::EnumToSemantics(
- static_cast<llvm::APFloatBase::Semantics>(Record[Idx++]));
- llvm::APFloat First = ReadAPFloat(Record, FloatSema1, Idx);
- const llvm::fltSemantics &FloatSema2 = llvm::APFloatBase::EnumToSemantics(
- static_cast<llvm::APFloatBase::Semantics>(Record[Idx++]));
- return APValue(std::move(First), ReadAPFloat(Record, FloatSema2, Idx));
- }
- case APValue::LValue:
- case APValue::Vector:
- case APValue::Array:
- case APValue::Struct:
- case APValue::Union:
- case APValue::MemberPointer:
- case APValue::AddrLabelDiff:
- // TODO : Handle all these APValue::ValueKind.
- return APValue();
- }
- llvm_unreachable("Invalid APValue::ValueKind");
- }
- /// Read an integral value
- llvm::APInt ASTReader::ReadAPInt(const RecordData &Record, unsigned &Idx) {
- unsigned BitWidth = Record[Idx++];
- unsigned NumWords = llvm::APInt::getNumWords(BitWidth);
- llvm::APInt Result(BitWidth, NumWords, &Record[Idx]);
- Idx += NumWords;
- return Result;
- }
- /// Read a signed integral value
- llvm::APSInt ASTReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) {
- bool isUnsigned = Record[Idx++];
- return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned);
- }
- /// Read a floating-point value
- llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record,
- const llvm::fltSemantics &Sem,
- unsigned &Idx) {
- return llvm::APFloat(Sem, ReadAPInt(Record, Idx));
- }
- // Read a string
- std::string ASTReader::ReadString(const RecordData &Record, unsigned &Idx) {
- unsigned Len = Record[Idx++];
- std::string Result(Record.data() + Idx, Record.data() + Idx + Len);
- Idx += Len;
- return Result;
- }
- std::string ASTReader::ReadPath(ModuleFile &F, const RecordData &Record,
- unsigned &Idx) {
- std::string Filename = ReadString(Record, Idx);
- ResolveImportedPath(F, Filename);
- return Filename;
- }
- std::string ASTReader::ReadPath(StringRef BaseDirectory,
- const RecordData &Record, unsigned &Idx) {
- std::string Filename = ReadString(Record, Idx);
- if (!BaseDirectory.empty())
- ResolveImportedPath(Filename, BaseDirectory);
- return Filename;
- }
- VersionTuple ASTReader::ReadVersionTuple(const RecordData &Record,
- unsigned &Idx) {
- unsigned Major = Record[Idx++];
- unsigned Minor = Record[Idx++];
- unsigned Subminor = Record[Idx++];
- if (Minor == 0)
- return VersionTuple(Major);
- if (Subminor == 0)
- return VersionTuple(Major, Minor - 1);
- return VersionTuple(Major, Minor - 1, Subminor - 1);
- }
- CXXTemporary *ASTReader::ReadCXXTemporary(ModuleFile &F,
- const RecordData &Record,
- unsigned &Idx) {
- CXXDestructorDecl *Decl = ReadDeclAs<CXXDestructorDecl>(F, Record, Idx);
- return CXXTemporary::Create(getContext(), Decl);
- }
- DiagnosticBuilder ASTReader::Diag(unsigned DiagID) const {
- return Diag(CurrentImportLoc, DiagID);
- }
- DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) const {
- return Diags.Report(Loc, DiagID);
- }
- /// Retrieve the identifier table associated with the
- /// preprocessor.
- IdentifierTable &ASTReader::getIdentifierTable() {
- return PP.getIdentifierTable();
- }
- /// Record that the given ID maps to the given switch-case
- /// statement.
- void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) {
- assert((*CurrSwitchCaseStmts)[ID] == nullptr &&
- "Already have a SwitchCase with this ID");
- (*CurrSwitchCaseStmts)[ID] = SC;
- }
- /// Retrieve the switch-case statement with the given ID.
- SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) {
- assert((*CurrSwitchCaseStmts)[ID] != nullptr && "No SwitchCase with this ID");
- return (*CurrSwitchCaseStmts)[ID];
- }
- void ASTReader::ClearSwitchCaseIDs() {
- CurrSwitchCaseStmts->clear();
- }
- void ASTReader::ReadComments() {
- ASTContext &Context = getContext();
- std::vector<RawComment *> Comments;
- for (SmallVectorImpl<std::pair<BitstreamCursor,
- serialization::ModuleFile *>>::iterator
- I = CommentsCursors.begin(),
- E = CommentsCursors.end();
- I != E; ++I) {
- Comments.clear();
- BitstreamCursor &Cursor = I->first;
- serialization::ModuleFile &F = *I->second;
- SavedStreamPosition SavedPosition(Cursor);
- RecordData Record;
- while (true) {
- Expected<llvm::BitstreamEntry> MaybeEntry =
- Cursor.advanceSkippingSubblocks(
- BitstreamCursor::AF_DontPopBlockAtEnd);
- if (!MaybeEntry) {
- Error(MaybeEntry.takeError());
- return;
- }
- llvm::BitstreamEntry Entry = MaybeEntry.get();
- switch (Entry.Kind) {
- case llvm::BitstreamEntry::SubBlock: // Handled for us already.
- case llvm::BitstreamEntry::Error:
- Error("malformed block record in AST file");
- return;
- case llvm::BitstreamEntry::EndBlock:
- goto NextCursor;
- case llvm::BitstreamEntry::Record:
- // The interesting case.
- break;
- }
- // Read a record.
- Record.clear();
- Expected<unsigned> MaybeComment = Cursor.readRecord(Entry.ID, Record);
- if (!MaybeComment) {
- Error(MaybeComment.takeError());
- return;
- }
- switch ((CommentRecordTypes)MaybeComment.get()) {
- case COMMENTS_RAW_COMMENT: {
- unsigned Idx = 0;
- SourceRange SR = ReadSourceRange(F, Record, Idx);
- RawComment::CommentKind Kind =
- (RawComment::CommentKind) Record[Idx++];
- bool IsTrailingComment = Record[Idx++];
- bool IsAlmostTrailingComment = Record[Idx++];
- Comments.push_back(new (Context) RawComment(
- SR, Kind, IsTrailingComment, IsAlmostTrailingComment));
- break;
- }
- }
- }
- NextCursor:
- llvm::DenseMap<FileID, std::map<unsigned, RawComment *>>
- FileToOffsetToComment;
- for (RawComment *C : Comments) {
- SourceLocation CommentLoc = C->getBeginLoc();
- if (CommentLoc.isValid()) {
- std::pair<FileID, unsigned> Loc =
- SourceMgr.getDecomposedLoc(CommentLoc);
- if (Loc.first.isValid())
- Context.Comments.OrderedComments[Loc.first].emplace(Loc.second, C);
- }
- }
- }
- }
- void ASTReader::visitInputFiles(serialization::ModuleFile &MF,
- bool IncludeSystem, bool Complain,
- llvm::function_ref<void(const serialization::InputFile &IF,
- bool isSystem)> Visitor) {
- unsigned NumUserInputs = MF.NumUserInputFiles;
- unsigned NumInputs = MF.InputFilesLoaded.size();
- assert(NumUserInputs <= NumInputs);
- unsigned N = IncludeSystem ? NumInputs : NumUserInputs;
- for (unsigned I = 0; I < N; ++I) {
- bool IsSystem = I >= NumUserInputs;
- InputFile IF = getInputFile(MF, I+1, Complain);
- Visitor(IF, IsSystem);
- }
- }
- void ASTReader::visitTopLevelModuleMaps(
- serialization::ModuleFile &MF,
- llvm::function_ref<void(const FileEntry *FE)> Visitor) {
- unsigned NumInputs = MF.InputFilesLoaded.size();
- for (unsigned I = 0; I < NumInputs; ++I) {
- InputFileInfo IFI = readInputFileInfo(MF, I + 1);
- if (IFI.TopLevelModuleMap)
- // FIXME: This unnecessarily re-reads the InputFileInfo.
- if (auto *FE = getInputFile(MF, I + 1).getFile())
- Visitor(FE);
- }
- }
- std::string ASTReader::getOwningModuleNameForDiagnostic(const Decl *D) {
- // If we know the owning module, use it.
- if (Module *M = D->getImportedOwningModule())
- return M->getFullModuleName();
- // Otherwise, use the name of the top-level module the decl is within.
- if (ModuleFile *M = getOwningModuleFile(D))
- return M->ModuleName;
- // Not from a module.
- return {};
- }
- void ASTReader::finishPendingActions() {
- while (!PendingIdentifierInfos.empty() || !PendingFunctionTypes.empty() ||
- !PendingIncompleteDeclChains.empty() || !PendingDeclChains.empty() ||
- !PendingMacroIDs.empty() || !PendingDeclContextInfos.empty() ||
- !PendingUpdateRecords.empty()) {
- // If any identifiers with corresponding top-level declarations have
- // been loaded, load those declarations now.
- using TopLevelDeclsMap =
- llvm::DenseMap<IdentifierInfo *, SmallVector<Decl *, 2>>;
- TopLevelDeclsMap TopLevelDecls;
- while (!PendingIdentifierInfos.empty()) {
- IdentifierInfo *II = PendingIdentifierInfos.back().first;
- SmallVector<uint32_t, 4> DeclIDs =
- std::move(PendingIdentifierInfos.back().second);
- PendingIdentifierInfos.pop_back();
- SetGloballyVisibleDecls(II, DeclIDs, &TopLevelDecls[II]);
- }
- // Load each function type that we deferred loading because it was a
- // deduced type that might refer to a local type declared within itself.
- for (unsigned I = 0; I != PendingFunctionTypes.size(); ++I) {
- auto *FD = PendingFunctionTypes[I].first;
- FD->setType(GetType(PendingFunctionTypes[I].second));
- // If we gave a function a deduced return type, remember that we need to
- // propagate that along the redeclaration chain.
- auto *DT = FD->getReturnType()->getContainedDeducedType();
- if (DT && DT->isDeduced())
- PendingDeducedTypeUpdates.insert(
- {FD->getCanonicalDecl(), FD->getReturnType()});
- }
- PendingFunctionTypes.clear();
- // For each decl chain that we wanted to complete while deserializing, mark
- // it as "still needs to be completed".
- for (unsigned I = 0; I != PendingIncompleteDeclChains.size(); ++I) {
- markIncompleteDeclChain(PendingIncompleteDeclChains[I]);
- }
- PendingIncompleteDeclChains.clear();
- // Load pending declaration chains.
- for (unsigned I = 0; I != PendingDeclChains.size(); ++I)
- loadPendingDeclChain(PendingDeclChains[I].first,
- PendingDeclChains[I].second);
- PendingDeclChains.clear();
- // Make the most recent of the top-level declarations visible.
- for (TopLevelDeclsMap::iterator TLD = TopLevelDecls.begin(),
- TLDEnd = TopLevelDecls.end(); TLD != TLDEnd; ++TLD) {
- IdentifierInfo *II = TLD->first;
- for (unsigned I = 0, N = TLD->second.size(); I != N; ++I) {
- pushExternalDeclIntoScope(cast<NamedDecl>(TLD->second[I]), II);
- }
- }
- // Load any pending macro definitions.
- for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) {
- IdentifierInfo *II = PendingMacroIDs.begin()[I].first;
- SmallVector<PendingMacroInfo, 2> GlobalIDs;
- GlobalIDs.swap(PendingMacroIDs.begin()[I].second);
- // Initialize the macro history from chained-PCHs ahead of module imports.
- for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs;
- ++IDIdx) {
- const PendingMacroInfo &Info = GlobalIDs[IDIdx];
- if (!Info.M->isModule())
- resolvePendingMacro(II, Info);
- }
- // Handle module imports.
- for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs;
- ++IDIdx) {
- const PendingMacroInfo &Info = GlobalIDs[IDIdx];
- if (Info.M->isModule())
- resolvePendingMacro(II, Info);
- }
- }
- PendingMacroIDs.clear();
- // Wire up the DeclContexts for Decls that we delayed setting until
- // recursive loading is completed.
- while (!PendingDeclContextInfos.empty()) {
- PendingDeclContextInfo Info = PendingDeclContextInfos.front();
- PendingDeclContextInfos.pop_front();
- DeclContext *SemaDC = cast<DeclContext>(GetDecl(Info.SemaDC));
- DeclContext *LexicalDC = cast<DeclContext>(GetDecl(Info.LexicalDC));
- Info.D->setDeclContextsImpl(SemaDC, LexicalDC, getContext());
- }
- // Perform any pending declaration updates.
- while (!PendingUpdateRecords.empty()) {
- auto Update = PendingUpdateRecords.pop_back_val();
- ReadingKindTracker ReadingKind(Read_Decl, *this);
- loadDeclUpdateRecords(Update);
- }
- }
- // At this point, all update records for loaded decls are in place, so any
- // fake class definitions should have become real.
- assert(PendingFakeDefinitionData.empty() &&
- "faked up a class definition but never saw the real one");
- // If we deserialized any C++ or Objective-C class definitions, any
- // Objective-C protocol definitions, or any redeclarable templates, make sure
- // that all redeclarations point to the definitions. Note that this can only
- // happen now, after the redeclaration chains have been fully wired.
- for (Decl *D : PendingDefinitions) {
- if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
- if (const TagType *TagT = dyn_cast<TagType>(TD->getTypeForDecl())) {
- // Make sure that the TagType points at the definition.
- const_cast<TagType*>(TagT)->decl = TD;
- }
- if (auto RD = dyn_cast<CXXRecordDecl>(D)) {
- for (auto *R = getMostRecentExistingDecl(RD); R;
- R = R->getPreviousDecl()) {
- assert((R == D) ==
- cast<CXXRecordDecl>(R)->isThisDeclarationADefinition() &&
- "declaration thinks it's the definition but it isn't");
- cast<CXXRecordDecl>(R)->DefinitionData = RD->DefinitionData;
- }
- }
- continue;
- }
- if (auto ID = dyn_cast<ObjCInterfaceDecl>(D)) {
- // Make sure that the ObjCInterfaceType points at the definition.
- const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl))
- ->Decl = ID;
- for (auto *R = getMostRecentExistingDecl(ID); R; R = R->getPreviousDecl())
- cast<ObjCInterfaceDecl>(R)->Data = ID->Data;
- continue;
- }
- if (auto PD = dyn_cast<ObjCProtocolDecl>(D)) {
- for (auto *R = getMostRecentExistingDecl(PD); R; R = R->getPreviousDecl())
- cast<ObjCProtocolDecl>(R)->Data = PD->Data;
- continue;
- }
- auto RTD = cast<RedeclarableTemplateDecl>(D)->getCanonicalDecl();
- for (auto *R = getMostRecentExistingDecl(RTD); R; R = R->getPreviousDecl())
- cast<RedeclarableTemplateDecl>(R)->Common = RTD->Common;
- }
- PendingDefinitions.clear();
- // Load the bodies of any functions or methods we've encountered. We do
- // this now (delayed) so that we can be sure that the declaration chains
- // have been fully wired up (hasBody relies on this).
- // FIXME: We shouldn't require complete redeclaration chains here.
- for (PendingBodiesMap::iterator PB = PendingBodies.begin(),
- PBEnd = PendingBodies.end();
- PB != PBEnd; ++PB) {
- if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) {
- // For a function defined inline within a class template, force the
- // canonical definition to be the one inside the canonical definition of
- // the template. This ensures that we instantiate from a correct view
- // of the template.
- //
- // Sadly we can't do this more generally: we can't be sure that all
- // copies of an arbitrary class definition will have the same members
- // defined (eg, some member functions may not be instantiated, and some
- // special members may or may not have been implicitly defined).
- if (auto *RD = dyn_cast<CXXRecordDecl>(FD->getLexicalParent()))
- if (RD->isDependentContext() && !RD->isThisDeclarationADefinition())
- continue;
- // FIXME: Check for =delete/=default?
- // FIXME: Complain about ODR violations here?
- const FunctionDecl *Defn = nullptr;
- if (!getContext().getLangOpts().Modules || !FD->hasBody(Defn)) {
- FD->setLazyBody(PB->second);
- } else {
- auto *NonConstDefn = const_cast<FunctionDecl*>(Defn);
- mergeDefinitionVisibility(NonConstDefn, FD);
- if (!FD->isLateTemplateParsed() &&
- !NonConstDefn->isLateTemplateParsed() &&
- FD->getODRHash() != NonConstDefn->getODRHash()) {
- if (!isa<CXXMethodDecl>(FD)) {
- PendingFunctionOdrMergeFailures[FD].push_back(NonConstDefn);
- } else if (FD->getLexicalParent()->isFileContext() &&
- NonConstDefn->getLexicalParent()->isFileContext()) {
- // Only diagnose out-of-line method definitions. If they are
- // in class definitions, then an error will be generated when
- // processing the class bodies.
- PendingFunctionOdrMergeFailures[FD].push_back(NonConstDefn);
- }
- }
- }
- continue;
- }
- ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first);
- if (!getContext().getLangOpts().Modules || !MD->hasBody())
- MD->setLazyBody(PB->second);
- }
- PendingBodies.clear();
- // Do some cleanup.
- for (auto *ND : PendingMergedDefinitionsToDeduplicate)
- getContext().deduplicateMergedDefinitonsFor(ND);
- PendingMergedDefinitionsToDeduplicate.clear();
- }
- void ASTReader::diagnoseOdrViolations() {
- if (PendingOdrMergeFailures.empty() && PendingOdrMergeChecks.empty() &&
- PendingFunctionOdrMergeFailures.empty() &&
- PendingEnumOdrMergeFailures.empty())
- return;
- // Trigger the import of the full definition of each class that had any
- // odr-merging problems, so we can produce better diagnostics for them.
- // These updates may in turn find and diagnose some ODR failures, so take
- // ownership of the set first.
- auto OdrMergeFailures = std::move(PendingOdrMergeFailures);
- PendingOdrMergeFailures.clear();
- for (auto &Merge : OdrMergeFailures) {
- Merge.first->buildLookup();
- Merge.first->decls_begin();
- Merge.first->bases_begin();
- Merge.first->vbases_begin();
- for (auto &RecordPair : Merge.second) {
- auto *RD = RecordPair.first;
- RD->decls_begin();
- RD->bases_begin();
- RD->vbases_begin();
- }
- }
- // Trigger the import of functions.
- auto FunctionOdrMergeFailures = std::move(PendingFunctionOdrMergeFailures);
- PendingFunctionOdrMergeFailures.clear();
- for (auto &Merge : FunctionOdrMergeFailures) {
- Merge.first->buildLookup();
- Merge.first->decls_begin();
- Merge.first->getBody();
- for (auto &FD : Merge.second) {
- FD->buildLookup();
- FD->decls_begin();
- FD->getBody();
- }
- }
- // Trigger the import of enums.
- auto EnumOdrMergeFailures = std::move(PendingEnumOdrMergeFailures);
- PendingEnumOdrMergeFailures.clear();
- for (auto &Merge : EnumOdrMergeFailures) {
- Merge.first->decls_begin();
- for (auto &Enum : Merge.second) {
- Enum->decls_begin();
- }
- }
- // For each declaration from a merged context, check that the canonical
- // definition of that context also contains a declaration of the same
- // entity.
- //
- // Caution: this loop does things that might invalidate iterators into
- // PendingOdrMergeChecks. Don't turn this into a range-based for loop!
- while (!PendingOdrMergeChecks.empty()) {
- NamedDecl *D = PendingOdrMergeChecks.pop_back_val();
- // FIXME: Skip over implicit declarations for now. This matters for things
- // like implicitly-declared special member functions. This isn't entirely
- // correct; we can end up with multiple unmerged declarations of the same
- // implicit entity.
- if (D->isImplicit())
- continue;
- DeclContext *CanonDef = D->getDeclContext();
- bool Found = false;
- const Decl *DCanon = D->getCanonicalDecl();
- for (auto RI : D->redecls()) {
- if (RI->getLexicalDeclContext() == CanonDef) {
- Found = true;
- break;
- }
- }
- if (Found)
- continue;
- // Quick check failed, time to do the slow thing. Note, we can't just
- // look up the name of D in CanonDef here, because the member that is
- // in CanonDef might not be found by name lookup (it might have been
- // replaced by a more recent declaration in the lookup table), and we
- // can't necessarily find it in the redeclaration chain because it might
- // be merely mergeable, not redeclarable.
- llvm::SmallVector<const NamedDecl*, 4> Candidates;
- for (auto *CanonMember : CanonDef->decls()) {
- if (CanonMember->getCanonicalDecl() == DCanon) {
- // This can happen if the declaration is merely mergeable and not
- // actually redeclarable (we looked for redeclarations earlier).
- //
- // FIXME: We should be able to detect this more efficiently, without
- // pulling in all of the members of CanonDef.
- Found = true;
- break;
- }
- if (auto *ND = dyn_cast<NamedDecl>(CanonMember))
- if (ND->getDeclName() == D->getDeclName())
- Candidates.push_back(ND);
- }
- if (!Found) {
- // The AST doesn't like TagDecls becoming invalid after they've been
- // completed. We only really need to mark FieldDecls as invalid here.
- if (!isa<TagDecl>(D))
- D->setInvalidDecl();
- // Ensure we don't accidentally recursively enter deserialization while
- // we're producing our diagnostic.
- Deserializing RecursionGuard(this);
- std::string CanonDefModule =
- getOwningModuleNameForDiagnostic(cast<Decl>(CanonDef));
- Diag(D->getLocation(), diag::err_module_odr_violation_missing_decl)
- << D << getOwningModuleNameForDiagnostic(D)
- << CanonDef << CanonDefModule.empty() << CanonDefModule;
- if (Candidates.empty())
- Diag(cast<Decl>(CanonDef)->getLocation(),
- diag::note_module_odr_violation_no_possible_decls) << D;
- else {
- for (unsigned I = 0, N = Candidates.size(); I != N; ++I)
- Diag(Candidates[I]->getLocation(),
- diag::note_module_odr_violation_possible_decl)
- << Candidates[I];
- }
- DiagnosedOdrMergeFailures.insert(CanonDef);
- }
- }
- if (OdrMergeFailures.empty() && FunctionOdrMergeFailures.empty() &&
- EnumOdrMergeFailures.empty())
- return;
- // Ensure we don't accidentally recursively enter deserialization while
- // we're producing our diagnostics.
- Deserializing RecursionGuard(this);
- // Common code for hashing helpers.
- ODRHash Hash;
- auto ComputeQualTypeODRHash = [&Hash](QualType Ty) {
- Hash.clear();
- Hash.AddQualType(Ty);
- return Hash.CalculateHash();
- };
- auto ComputeODRHash = [&Hash](const Stmt *S) {
- assert(S);
- Hash.clear();
- Hash.AddStmt(S);
- return Hash.CalculateHash();
- };
- auto ComputeSubDeclODRHash = [&Hash](const Decl *D) {
- assert(D);
- Hash.clear();
- Hash.AddSubDecl(D);
- return Hash.CalculateHash();
- };
- auto ComputeTemplateArgumentODRHash = [&Hash](const TemplateArgument &TA) {
- Hash.clear();
- Hash.AddTemplateArgument(TA);
- return Hash.CalculateHash();
- };
- auto ComputeTemplateParameterListODRHash =
- [&Hash](const TemplateParameterList *TPL) {
- assert(TPL);
- Hash.clear();
- Hash.AddTemplateParameterList(TPL);
- return Hash.CalculateHash();
- };
- // Issue any pending ODR-failure diagnostics.
- for (auto &Merge : OdrMergeFailures) {
- // If we've already pointed out a specific problem with this class, don't
- // bother issuing a general "something's different" diagnostic.
- if (!DiagnosedOdrMergeFailures.insert(Merge.first).second)
- continue;
- bool Diagnosed = false;
- CXXRecordDecl *FirstRecord = Merge.first;
- std::string FirstModule = getOwningModuleNameForDiagnostic(FirstRecord);
- for (auto &RecordPair : Merge.second) {
- CXXRecordDecl *SecondRecord = RecordPair.first;
- // Multiple different declarations got merged together; tell the user
- // where they came from.
- if (FirstRecord == SecondRecord)
- continue;
- std::string SecondModule = getOwningModuleNameForDiagnostic(SecondRecord);
- auto *FirstDD = FirstRecord->DefinitionData;
- auto *SecondDD = RecordPair.second;
- assert(FirstDD && SecondDD && "Definitions without DefinitionData");
- // Diagnostics from DefinitionData are emitted here.
- if (FirstDD != SecondDD) {
- enum ODRDefinitionDataDifference {
- NumBases,
- NumVBases,
- BaseType,
- BaseVirtual,
- BaseAccess,
- };
- auto ODRDiagError = [FirstRecord, &FirstModule,
- this](SourceLocation Loc, SourceRange Range,
- ODRDefinitionDataDifference DiffType) {
- return Diag(Loc, diag::err_module_odr_violation_definition_data)
- << FirstRecord << FirstModule.empty() << FirstModule << Range
- << DiffType;
- };
- auto ODRDiagNote = [&SecondModule,
- this](SourceLocation Loc, SourceRange Range,
- ODRDefinitionDataDifference DiffType) {
- return Diag(Loc, diag::note_module_odr_violation_definition_data)
- << SecondModule << Range << DiffType;
- };
- unsigned FirstNumBases = FirstDD->NumBases;
- unsigned FirstNumVBases = FirstDD->NumVBases;
- unsigned SecondNumBases = SecondDD->NumBases;
- unsigned SecondNumVBases = SecondDD->NumVBases;
- auto GetSourceRange = [](struct CXXRecordDecl::DefinitionData *DD) {
- unsigned NumBases = DD->NumBases;
- if (NumBases == 0) return SourceRange();
- auto bases = DD->bases();
- return SourceRange(bases[0].getBeginLoc(),
- bases[NumBases - 1].getEndLoc());
- };
- if (FirstNumBases != SecondNumBases) {
- ODRDiagError(FirstRecord->getLocation(), GetSourceRange(FirstDD),
- NumBases)
- << FirstNumBases;
- ODRDiagNote(SecondRecord->getLocation(), GetSourceRange(SecondDD),
- NumBases)
- << SecondNumBases;
- Diagnosed = true;
- break;
- }
- if (FirstNumVBases != SecondNumVBases) {
- ODRDiagError(FirstRecord->getLocation(), GetSourceRange(FirstDD),
- NumVBases)
- << FirstNumVBases;
- ODRDiagNote(SecondRecord->getLocation(), GetSourceRange(SecondDD),
- NumVBases)
- << SecondNumVBases;
- Diagnosed = true;
- break;
- }
- auto FirstBases = FirstDD->bases();
- auto SecondBases = SecondDD->bases();
- unsigned i = 0;
- for (i = 0; i < FirstNumBases; ++i) {
- auto FirstBase = FirstBases[i];
- auto SecondBase = SecondBases[i];
- if (ComputeQualTypeODRHash(FirstBase.getType()) !=
- ComputeQualTypeODRHash(SecondBase.getType())) {
- ODRDiagError(FirstRecord->getLocation(), FirstBase.getSourceRange(),
- BaseType)
- << (i + 1) << FirstBase.getType();
- ODRDiagNote(SecondRecord->getLocation(),
- SecondBase.getSourceRange(), BaseType)
- << (i + 1) << SecondBase.getType();
- break;
- }
- if (FirstBase.isVirtual() != SecondBase.isVirtual()) {
- ODRDiagError(FirstRecord->getLocation(), FirstBase.getSourceRange(),
- BaseVirtual)
- << (i + 1) << FirstBase.isVirtual() << FirstBase.getType();
- ODRDiagNote(SecondRecord->getLocation(),
- SecondBase.getSourceRange(), BaseVirtual)
- << (i + 1) << SecondBase.isVirtual() << SecondBase.getType();
- break;
- }
- if (FirstBase.getAccessSpecifierAsWritten() !=
- SecondBase.getAccessSpecifierAsWritten()) {
- ODRDiagError(FirstRecord->getLocation(), FirstBase.getSourceRange(),
- BaseAccess)
- << (i + 1) << FirstBase.getType()
- << (int)FirstBase.getAccessSpecifierAsWritten();
- ODRDiagNote(SecondRecord->getLocation(),
- SecondBase.getSourceRange(), BaseAccess)
- << (i + 1) << SecondBase.getType()
- << (int)SecondBase.getAccessSpecifierAsWritten();
- break;
- }
- }
- if (i != FirstNumBases) {
- Diagnosed = true;
- break;
- }
- }
- using DeclHashes = llvm::SmallVector<std::pair<Decl *, unsigned>, 4>;
- const ClassTemplateDecl *FirstTemplate =
- FirstRecord->getDescribedClassTemplate();
- const ClassTemplateDecl *SecondTemplate =
- SecondRecord->getDescribedClassTemplate();
- assert(!FirstTemplate == !SecondTemplate &&
- "Both pointers should be null or non-null");
- enum ODRTemplateDifference {
- ParamEmptyName,
- ParamName,
- ParamSingleDefaultArgument,
- ParamDifferentDefaultArgument,
- };
- if (FirstTemplate && SecondTemplate) {
- DeclHashes FirstTemplateHashes;
- DeclHashes SecondTemplateHashes;
- auto PopulateTemplateParameterHashs =
- [&ComputeSubDeclODRHash](DeclHashes &Hashes,
- const ClassTemplateDecl *TD) {
- for (auto *D : TD->getTemplateParameters()->asArray()) {
- Hashes.emplace_back(D, ComputeSubDeclODRHash(D));
- }
- };
- PopulateTemplateParameterHashs(FirstTemplateHashes, FirstTemplate);
- PopulateTemplateParameterHashs(SecondTemplateHashes, SecondTemplate);
- assert(FirstTemplateHashes.size() == SecondTemplateHashes.size() &&
- "Number of template parameters should be equal.");
- auto FirstIt = FirstTemplateHashes.begin();
- auto FirstEnd = FirstTemplateHashes.end();
- auto SecondIt = SecondTemplateHashes.begin();
- for (; FirstIt != FirstEnd; ++FirstIt, ++SecondIt) {
- if (FirstIt->second == SecondIt->second)
- continue;
- auto ODRDiagError = [FirstRecord, &FirstModule,
- this](SourceLocation Loc, SourceRange Range,
- ODRTemplateDifference DiffType) {
- return Diag(Loc, diag::err_module_odr_violation_template_parameter)
- << FirstRecord << FirstModule.empty() << FirstModule << Range
- << DiffType;
- };
- auto ODRDiagNote = [&SecondModule,
- this](SourceLocation Loc, SourceRange Range,
- ODRTemplateDifference DiffType) {
- return Diag(Loc, diag::note_module_odr_violation_template_parameter)
- << SecondModule << Range << DiffType;
- };
- const NamedDecl* FirstDecl = cast<NamedDecl>(FirstIt->first);
- const NamedDecl* SecondDecl = cast<NamedDecl>(SecondIt->first);
- assert(FirstDecl->getKind() == SecondDecl->getKind() &&
- "Parameter Decl's should be the same kind.");
- DeclarationName FirstName = FirstDecl->getDeclName();
- DeclarationName SecondName = SecondDecl->getDeclName();
- if (FirstName != SecondName) {
- const bool FirstNameEmpty =
- FirstName.isIdentifier() && !FirstName.getAsIdentifierInfo();
- const bool SecondNameEmpty =
- SecondName.isIdentifier() && !SecondName.getAsIdentifierInfo();
- assert((!FirstNameEmpty || !SecondNameEmpty) &&
- "Both template parameters cannot be unnamed.");
- ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(),
- FirstNameEmpty ? ParamEmptyName : ParamName)
- << FirstName;
- ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(),
- SecondNameEmpty ? ParamEmptyName : ParamName)
- << SecondName;
- break;
- }
- switch (FirstDecl->getKind()) {
- default:
- llvm_unreachable("Invalid template parameter type.");
- case Decl::TemplateTypeParm: {
- const auto *FirstParam = cast<TemplateTypeParmDecl>(FirstDecl);
- const auto *SecondParam = cast<TemplateTypeParmDecl>(SecondDecl);
- const bool HasFirstDefaultArgument =
- FirstParam->hasDefaultArgument() &&
- !FirstParam->defaultArgumentWasInherited();
- const bool HasSecondDefaultArgument =
- SecondParam->hasDefaultArgument() &&
- !SecondParam->defaultArgumentWasInherited();
- if (HasFirstDefaultArgument != HasSecondDefaultArgument) {
- ODRDiagError(FirstDecl->getLocation(),
- FirstDecl->getSourceRange(),
- ParamSingleDefaultArgument)
- << HasFirstDefaultArgument;
- ODRDiagNote(SecondDecl->getLocation(),
- SecondDecl->getSourceRange(),
- ParamSingleDefaultArgument)
- << HasSecondDefaultArgument;
- break;
- }
- assert(HasFirstDefaultArgument && HasSecondDefaultArgument &&
- "Expecting default arguments.");
- ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(),
- ParamDifferentDefaultArgument);
- ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(),
- ParamDifferentDefaultArgument);
- break;
- }
- case Decl::NonTypeTemplateParm: {
- const auto *FirstParam = cast<NonTypeTemplateParmDecl>(FirstDecl);
- const auto *SecondParam = cast<NonTypeTemplateParmDecl>(SecondDecl);
- const bool HasFirstDefaultArgument =
- FirstParam->hasDefaultArgument() &&
- !FirstParam->defaultArgumentWasInherited();
- const bool HasSecondDefaultArgument =
- SecondParam->hasDefaultArgument() &&
- !SecondParam->defaultArgumentWasInherited();
- if (HasFirstDefaultArgument != HasSecondDefaultArgument) {
- ODRDiagError(FirstDecl->getLocation(),
- FirstDecl->getSourceRange(),
- ParamSingleDefaultArgument)
- << HasFirstDefaultArgument;
- ODRDiagNote(SecondDecl->getLocation(),
- SecondDecl->getSourceRange(),
- ParamSingleDefaultArgument)
- << HasSecondDefaultArgument;
- break;
- }
- assert(HasFirstDefaultArgument && HasSecondDefaultArgument &&
- "Expecting default arguments.");
- ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(),
- ParamDifferentDefaultArgument);
- ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(),
- ParamDifferentDefaultArgument);
- break;
- }
- case Decl::TemplateTemplateParm: {
- const auto *FirstParam = cast<TemplateTemplateParmDecl>(FirstDecl);
- const auto *SecondParam =
- cast<TemplateTemplateParmDecl>(SecondDecl);
- const bool HasFirstDefaultArgument =
- FirstParam->hasDefaultArgument() &&
- !FirstParam->defaultArgumentWasInherited();
- const bool HasSecondDefaultArgument =
- SecondParam->hasDefaultArgument() &&
- !SecondParam->defaultArgumentWasInherited();
- if (HasFirstDefaultArgument != HasSecondDefaultArgument) {
- ODRDiagError(FirstDecl->getLocation(),
- FirstDecl->getSourceRange(),
- ParamSingleDefaultArgument)
- << HasFirstDefaultArgument;
- ODRDiagNote(SecondDecl->getLocation(),
- SecondDecl->getSourceRange(),
- ParamSingleDefaultArgument)
- << HasSecondDefaultArgument;
- break;
- }
- assert(HasFirstDefaultArgument && HasSecondDefaultArgument &&
- "Expecting default arguments.");
- ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(),
- ParamDifferentDefaultArgument);
- ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(),
- ParamDifferentDefaultArgument);
- break;
- }
- }
- break;
- }
- if (FirstIt != FirstEnd) {
- Diagnosed = true;
- break;
- }
- }
- DeclHashes FirstHashes;
- DeclHashes SecondHashes;
- auto PopulateHashes = [&ComputeSubDeclODRHash, FirstRecord](
- DeclHashes &Hashes, CXXRecordDecl *Record) {
- for (auto *D : Record->decls()) {
- // Due to decl merging, the first CXXRecordDecl is the parent of
- // Decls in both records.
- if (!ODRHash::isWhitelistedDecl(D, FirstRecord))
- continue;
- Hashes.emplace_back(D, ComputeSubDeclODRHash(D));
- }
- };
- PopulateHashes(FirstHashes, FirstRecord);
- PopulateHashes(SecondHashes, SecondRecord);
- // Used with err_module_odr_violation_mismatch_decl and
- // note_module_odr_violation_mismatch_decl
- // This list should be the same Decl's as in ODRHash::isWhiteListedDecl
- enum {
- EndOfClass,
- PublicSpecifer,
- PrivateSpecifer,
- ProtectedSpecifer,
- StaticAssert,
- Field,
- CXXMethod,
- TypeAlias,
- TypeDef,
- Var,
- Friend,
- FunctionTemplate,
- Other
- } FirstDiffType = Other,
- SecondDiffType = Other;
- auto DifferenceSelector = [](Decl *D) {
- assert(D && "valid Decl required");
- switch (D->getKind()) {
- default:
- return Other;
- case Decl::AccessSpec:
- switch (D->getAccess()) {
- case AS_public:
- return PublicSpecifer;
- case AS_private:
- return PrivateSpecifer;
- case AS_protected:
- return ProtectedSpecifer;
- case AS_none:
- break;
- }
- llvm_unreachable("Invalid access specifier");
- case Decl::StaticAssert:
- return StaticAssert;
- case Decl::Field:
- return Field;
- case Decl::CXXMethod:
- case Decl::CXXConstructor:
- case Decl::CXXDestructor:
- return CXXMethod;
- case Decl::TypeAlias:
- return TypeAlias;
- case Decl::Typedef:
- return TypeDef;
- case Decl::Var:
- return Var;
- case Decl::Friend:
- return Friend;
- case Decl::FunctionTemplate:
- return FunctionTemplate;
- }
- };
- Decl *FirstDecl = nullptr;
- Decl *SecondDecl = nullptr;
- auto FirstIt = FirstHashes.begin();
- auto SecondIt = SecondHashes.begin();
- // If there is a diagnoseable difference, FirstDiffType and
- // SecondDiffType will not be Other and FirstDecl and SecondDecl will be
- // filled in if not EndOfClass.
- while (FirstIt != FirstHashes.end() || SecondIt != SecondHashes.end()) {
- if (FirstIt != FirstHashes.end() && SecondIt != SecondHashes.end() &&
- FirstIt->second == SecondIt->second) {
- ++FirstIt;
- ++SecondIt;
- continue;
- }
- FirstDecl = FirstIt == FirstHashes.end() ? nullptr : FirstIt->first;
- SecondDecl = SecondIt == SecondHashes.end() ? nullptr : SecondIt->first;
- FirstDiffType = FirstDecl ? DifferenceSelector(FirstDecl) : EndOfClass;
- SecondDiffType =
- SecondDecl ? DifferenceSelector(SecondDecl) : EndOfClass;
- break;
- }
- if (FirstDiffType == Other || SecondDiffType == Other) {
- // Reaching this point means an unexpected Decl was encountered
- // or no difference was detected. This causes a generic error
- // message to be emitted.
- Diag(FirstRecord->getLocation(),
- diag::err_module_odr_violation_different_definitions)
- << FirstRecord << FirstModule.empty() << FirstModule;
- if (FirstDecl) {
- Diag(FirstDecl->getLocation(), diag::note_first_module_difference)
- << FirstRecord << FirstDecl->getSourceRange();
- }
- Diag(SecondRecord->getLocation(),
- diag::note_module_odr_violation_different_definitions)
- << SecondModule;
- if (SecondDecl) {
- Diag(SecondDecl->getLocation(), diag::note_second_module_difference)
- << SecondDecl->getSourceRange();
- }
- Diagnosed = true;
- break;
- }
- if (FirstDiffType != SecondDiffType) {
- SourceLocation FirstLoc;
- SourceRange FirstRange;
- if (FirstDiffType == EndOfClass) {
- FirstLoc = FirstRecord->getBraceRange().getEnd();
- } else {
- FirstLoc = FirstIt->first->getLocation();
- FirstRange = FirstIt->first->getSourceRange();
- }
- Diag(FirstLoc, diag::err_module_odr_violation_mismatch_decl)
- << FirstRecord << FirstModule.empty() << FirstModule << FirstRange
- << FirstDiffType;
- SourceLocation SecondLoc;
- SourceRange SecondRange;
- if (SecondDiffType == EndOfClass) {
- SecondLoc = SecondRecord->getBraceRange().getEnd();
- } else {
- SecondLoc = SecondDecl->getLocation();
- SecondRange = SecondDecl->getSourceRange();
- }
- Diag(SecondLoc, diag::note_module_odr_violation_mismatch_decl)
- << SecondModule << SecondRange << SecondDiffType;
- Diagnosed = true;
- break;
- }
- assert(FirstDiffType == SecondDiffType);
- // Used with err_module_odr_violation_mismatch_decl_diff and
- // note_module_odr_violation_mismatch_decl_diff
- enum ODRDeclDifference {
- StaticAssertCondition,
- StaticAssertMessage,
- StaticAssertOnlyMessage,
- FieldName,
- FieldTypeName,
- FieldSingleBitField,
- FieldDifferentWidthBitField,
- FieldSingleMutable,
- FieldSingleInitializer,
- FieldDifferentInitializers,
- MethodName,
- MethodDeleted,
- MethodDefaulted,
- MethodVirtual,
- MethodStatic,
- MethodVolatile,
- MethodConst,
- MethodInline,
- MethodNumberParameters,
- MethodParameterType,
- MethodParameterName,
- MethodParameterSingleDefaultArgument,
- MethodParameterDifferentDefaultArgument,
- MethodNoTemplateArguments,
- MethodDifferentNumberTemplateArguments,
- MethodDifferentTemplateArgument,
- MethodSingleBody,
- MethodDifferentBody,
- TypedefName,
- TypedefType,
- VarName,
- VarType,
- VarSingleInitializer,
- VarDifferentInitializer,
- VarConstexpr,
- FriendTypeFunction,
- FriendType,
- FriendFunction,
- FunctionTemplateDifferentNumberParameters,
- FunctionTemplateParameterDifferentKind,
- FunctionTemplateParameterName,
- FunctionTemplateParameterSingleDefaultArgument,
- FunctionTemplateParameterDifferentDefaultArgument,
- FunctionTemplateParameterDifferentType,
- FunctionTemplatePackParameter,
- };
- // These lambdas have the common portions of the ODR diagnostics. This
- // has the same return as Diag(), so addition parameters can be passed
- // in with operator<<
- auto ODRDiagError = [FirstRecord, &FirstModule, this](
- SourceLocation Loc, SourceRange Range, ODRDeclDifference DiffType) {
- return Diag(Loc, diag::err_module_odr_violation_mismatch_decl_diff)
- << FirstRecord << FirstModule.empty() << FirstModule << Range
- << DiffType;
- };
- auto ODRDiagNote = [&SecondModule, this](
- SourceLocation Loc, SourceRange Range, ODRDeclDifference DiffType) {
- return Diag(Loc, diag::note_module_odr_violation_mismatch_decl_diff)
- << SecondModule << Range << DiffType;
- };
- switch (FirstDiffType) {
- case Other:
- case EndOfClass:
- case PublicSpecifer:
- case PrivateSpecifer:
- case ProtectedSpecifer:
- llvm_unreachable("Invalid diff type");
- case StaticAssert: {
- StaticAssertDecl *FirstSA = cast<StaticAssertDecl>(FirstDecl);
- StaticAssertDecl *SecondSA = cast<StaticAssertDecl>(SecondDecl);
- Expr *FirstExpr = FirstSA->getAssertExpr();
- Expr *SecondExpr = SecondSA->getAssertExpr();
- unsigned FirstODRHash = ComputeODRHash(FirstExpr);
- unsigned SecondODRHash = ComputeODRHash(SecondExpr);
- if (FirstODRHash != SecondODRHash) {
- ODRDiagError(FirstExpr->getBeginLoc(), FirstExpr->getSourceRange(),
- StaticAssertCondition);
- ODRDiagNote(SecondExpr->getBeginLoc(), SecondExpr->getSourceRange(),
- StaticAssertCondition);
- Diagnosed = true;
- break;
- }
- StringLiteral *FirstStr = FirstSA->getMessage();
- StringLiteral *SecondStr = SecondSA->getMessage();
- assert((FirstStr || SecondStr) && "Both messages cannot be empty");
- if ((FirstStr && !SecondStr) || (!FirstStr && SecondStr)) {
- SourceLocation FirstLoc, SecondLoc;
- SourceRange FirstRange, SecondRange;
- if (FirstStr) {
- FirstLoc = FirstStr->getBeginLoc();
- FirstRange = FirstStr->getSourceRange();
- } else {
- FirstLoc = FirstSA->getBeginLoc();
- FirstRange = FirstSA->getSourceRange();
- }
- if (SecondStr) {
- SecondLoc = SecondStr->getBeginLoc();
- SecondRange = SecondStr->getSourceRange();
- } else {
- SecondLoc = SecondSA->getBeginLoc();
- SecondRange = SecondSA->getSourceRange();
- }
- ODRDiagError(FirstLoc, FirstRange, StaticAssertOnlyMessage)
- << (FirstStr == nullptr);
- ODRDiagNote(SecondLoc, SecondRange, StaticAssertOnlyMessage)
- << (SecondStr == nullptr);
- Diagnosed = true;
- break;
- }
- if (FirstStr && SecondStr &&
- FirstStr->getString() != SecondStr->getString()) {
- ODRDiagError(FirstStr->getBeginLoc(), FirstStr->getSourceRange(),
- StaticAssertMessage);
- ODRDiagNote(SecondStr->getBeginLoc(), SecondStr->getSourceRange(),
- StaticAssertMessage);
- Diagnosed = true;
- break;
- }
- break;
- }
- case Field: {
- FieldDecl *FirstField = cast<FieldDecl>(FirstDecl);
- FieldDecl *SecondField = cast<FieldDecl>(SecondDecl);
- IdentifierInfo *FirstII = FirstField->getIdentifier();
- IdentifierInfo *SecondII = SecondField->getIdentifier();
- if (FirstII->getName() != SecondII->getName()) {
- ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(),
- FieldName)
- << FirstII;
- ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(),
- FieldName)
- << SecondII;
- Diagnosed = true;
- break;
- }
- assert(getContext().hasSameType(FirstField->getType(),
- SecondField->getType()));
- QualType FirstType = FirstField->getType();
- QualType SecondType = SecondField->getType();
- if (ComputeQualTypeODRHash(FirstType) !=
- ComputeQualTypeODRHash(SecondType)) {
- ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(),
- FieldTypeName)
- << FirstII << FirstType;
- ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(),
- FieldTypeName)
- << SecondII << SecondType;
- Diagnosed = true;
- break;
- }
- const bool IsFirstBitField = FirstField->isBitField();
- const bool IsSecondBitField = SecondField->isBitField();
- if (IsFirstBitField != IsSecondBitField) {
- ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(),
- FieldSingleBitField)
- << FirstII << IsFirstBitField;
- ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(),
- FieldSingleBitField)
- << SecondII << IsSecondBitField;
- Diagnosed = true;
- break;
- }
- if (IsFirstBitField && IsSecondBitField) {
- ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(),
- FieldDifferentWidthBitField)
- << FirstII << FirstField->getBitWidth()->getSourceRange();
- ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(),
- FieldDifferentWidthBitField)
- << SecondII << SecondField->getBitWidth()->getSourceRange();
- Diagnosed = true;
- break;
- }
- const bool IsFirstMutable = FirstField->isMutable();
- const bool IsSecondMutable = SecondField->isMutable();
- if (IsFirstMutable != IsSecondMutable) {
- ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(),
- FieldSingleMutable)
- << FirstII << IsFirstMutable;
- ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(),
- FieldSingleMutable)
- << SecondII << IsSecondMutable;
- Diagnosed = true;
- break;
- }
- const Expr *FirstInitializer = FirstField->getInClassInitializer();
- const Expr *SecondInitializer = SecondField->getInClassInitializer();
- if ((!FirstInitializer && SecondInitializer) ||
- (FirstInitializer && !SecondInitializer)) {
- ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(),
- FieldSingleInitializer)
- << FirstII << (FirstInitializer != nullptr);
- ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(),
- FieldSingleInitializer)
- << SecondII << (SecondInitializer != nullptr);
- Diagnosed = true;
- break;
- }
- if (FirstInitializer && SecondInitializer) {
- unsigned FirstInitHash = ComputeODRHash(FirstInitializer);
- unsigned SecondInitHash = ComputeODRHash(SecondInitializer);
- if (FirstInitHash != SecondInitHash) {
- ODRDiagError(FirstField->getLocation(),
- FirstField->getSourceRange(),
- FieldDifferentInitializers)
- << FirstII << FirstInitializer->getSourceRange();
- ODRDiagNote(SecondField->getLocation(),
- SecondField->getSourceRange(),
- FieldDifferentInitializers)
- << SecondII << SecondInitializer->getSourceRange();
- Diagnosed = true;
- break;
- }
- }
- break;
- }
- case CXXMethod: {
- enum {
- DiagMethod,
- DiagConstructor,
- DiagDestructor,
- } FirstMethodType,
- SecondMethodType;
- auto GetMethodTypeForDiagnostics = [](const CXXMethodDecl* D) {
- if (isa<CXXConstructorDecl>(D)) return DiagConstructor;
- if (isa<CXXDestructorDecl>(D)) return DiagDestructor;
- return DiagMethod;
- };
- const CXXMethodDecl *FirstMethod = cast<CXXMethodDecl>(FirstDecl);
- const CXXMethodDecl *SecondMethod = cast<CXXMethodDecl>(SecondDecl);
- FirstMethodType = GetMethodTypeForDiagnostics(FirstMethod);
- SecondMethodType = GetMethodTypeForDiagnostics(SecondMethod);
- auto FirstName = FirstMethod->getDeclName();
- auto SecondName = SecondMethod->getDeclName();
- if (FirstMethodType != SecondMethodType || FirstName != SecondName) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodName)
- << FirstMethodType << FirstName;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodName)
- << SecondMethodType << SecondName;
- Diagnosed = true;
- break;
- }
- const bool FirstDeleted = FirstMethod->isDeletedAsWritten();
- const bool SecondDeleted = SecondMethod->isDeletedAsWritten();
- if (FirstDeleted != SecondDeleted) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodDeleted)
- << FirstMethodType << FirstName << FirstDeleted;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodDeleted)
- << SecondMethodType << SecondName << SecondDeleted;
- Diagnosed = true;
- break;
- }
- const bool FirstDefaulted = FirstMethod->isExplicitlyDefaulted();
- const bool SecondDefaulted = SecondMethod->isExplicitlyDefaulted();
- if (FirstDefaulted != SecondDefaulted) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodDefaulted)
- << FirstMethodType << FirstName << FirstDefaulted;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodDefaulted)
- << SecondMethodType << SecondName << SecondDefaulted;
- Diagnosed = true;
- break;
- }
- const bool FirstVirtual = FirstMethod->isVirtualAsWritten();
- const bool SecondVirtual = SecondMethod->isVirtualAsWritten();
- const bool FirstPure = FirstMethod->isPure();
- const bool SecondPure = SecondMethod->isPure();
- if ((FirstVirtual || SecondVirtual) &&
- (FirstVirtual != SecondVirtual || FirstPure != SecondPure)) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodVirtual)
- << FirstMethodType << FirstName << FirstPure << FirstVirtual;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodVirtual)
- << SecondMethodType << SecondName << SecondPure << SecondVirtual;
- Diagnosed = true;
- break;
- }
- // CXXMethodDecl::isStatic uses the canonical Decl. With Decl merging,
- // FirstDecl is the canonical Decl of SecondDecl, so the storage
- // class needs to be checked instead.
- const auto FirstStorage = FirstMethod->getStorageClass();
- const auto SecondStorage = SecondMethod->getStorageClass();
- const bool FirstStatic = FirstStorage == SC_Static;
- const bool SecondStatic = SecondStorage == SC_Static;
- if (FirstStatic != SecondStatic) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodStatic)
- << FirstMethodType << FirstName << FirstStatic;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodStatic)
- << SecondMethodType << SecondName << SecondStatic;
- Diagnosed = true;
- break;
- }
- const bool FirstVolatile = FirstMethod->isVolatile();
- const bool SecondVolatile = SecondMethod->isVolatile();
- if (FirstVolatile != SecondVolatile) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodVolatile)
- << FirstMethodType << FirstName << FirstVolatile;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodVolatile)
- << SecondMethodType << SecondName << SecondVolatile;
- Diagnosed = true;
- break;
- }
- const bool FirstConst = FirstMethod->isConst();
- const bool SecondConst = SecondMethod->isConst();
- if (FirstConst != SecondConst) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodConst)
- << FirstMethodType << FirstName << FirstConst;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodConst)
- << SecondMethodType << SecondName << SecondConst;
- Diagnosed = true;
- break;
- }
- const bool FirstInline = FirstMethod->isInlineSpecified();
- const bool SecondInline = SecondMethod->isInlineSpecified();
- if (FirstInline != SecondInline) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodInline)
- << FirstMethodType << FirstName << FirstInline;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodInline)
- << SecondMethodType << SecondName << SecondInline;
- Diagnosed = true;
- break;
- }
- const unsigned FirstNumParameters = FirstMethod->param_size();
- const unsigned SecondNumParameters = SecondMethod->param_size();
- if (FirstNumParameters != SecondNumParameters) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodNumberParameters)
- << FirstMethodType << FirstName << FirstNumParameters;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodNumberParameters)
- << SecondMethodType << SecondName << SecondNumParameters;
- Diagnosed = true;
- break;
- }
- // Need this status boolean to know when break out of the switch.
- bool ParameterMismatch = false;
- for (unsigned I = 0; I < FirstNumParameters; ++I) {
- const ParmVarDecl *FirstParam = FirstMethod->getParamDecl(I);
- const ParmVarDecl *SecondParam = SecondMethod->getParamDecl(I);
- QualType FirstParamType = FirstParam->getType();
- QualType SecondParamType = SecondParam->getType();
- if (FirstParamType != SecondParamType &&
- ComputeQualTypeODRHash(FirstParamType) !=
- ComputeQualTypeODRHash(SecondParamType)) {
- if (const DecayedType *ParamDecayedType =
- FirstParamType->getAs<DecayedType>()) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodParameterType)
- << FirstMethodType << FirstName << (I + 1) << FirstParamType
- << true << ParamDecayedType->getOriginalType();
- } else {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodParameterType)
- << FirstMethodType << FirstName << (I + 1) << FirstParamType
- << false;
- }
- if (const DecayedType *ParamDecayedType =
- SecondParamType->getAs<DecayedType>()) {
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodParameterType)
- << SecondMethodType << SecondName << (I + 1)
- << SecondParamType << true
- << ParamDecayedType->getOriginalType();
- } else {
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodParameterType)
- << SecondMethodType << SecondName << (I + 1)
- << SecondParamType << false;
- }
- ParameterMismatch = true;
- break;
- }
- DeclarationName FirstParamName = FirstParam->getDeclName();
- DeclarationName SecondParamName = SecondParam->getDeclName();
- if (FirstParamName != SecondParamName) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodParameterName)
- << FirstMethodType << FirstName << (I + 1) << FirstParamName;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodParameterName)
- << SecondMethodType << SecondName << (I + 1) << SecondParamName;
- ParameterMismatch = true;
- break;
- }
- const Expr *FirstInit = FirstParam->getInit();
- const Expr *SecondInit = SecondParam->getInit();
- if ((FirstInit == nullptr) != (SecondInit == nullptr)) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(),
- MethodParameterSingleDefaultArgument)
- << FirstMethodType << FirstName << (I + 1)
- << (FirstInit == nullptr)
- << (FirstInit ? FirstInit->getSourceRange() : SourceRange());
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(),
- MethodParameterSingleDefaultArgument)
- << SecondMethodType << SecondName << (I + 1)
- << (SecondInit == nullptr)
- << (SecondInit ? SecondInit->getSourceRange() : SourceRange());
- ParameterMismatch = true;
- break;
- }
- if (FirstInit && SecondInit &&
- ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(),
- MethodParameterDifferentDefaultArgument)
- << FirstMethodType << FirstName << (I + 1)
- << FirstInit->getSourceRange();
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(),
- MethodParameterDifferentDefaultArgument)
- << SecondMethodType << SecondName << (I + 1)
- << SecondInit->getSourceRange();
- ParameterMismatch = true;
- break;
- }
- }
- if (ParameterMismatch) {
- Diagnosed = true;
- break;
- }
- const auto *FirstTemplateArgs =
- FirstMethod->getTemplateSpecializationArgs();
- const auto *SecondTemplateArgs =
- SecondMethod->getTemplateSpecializationArgs();
- if ((FirstTemplateArgs && !SecondTemplateArgs) ||
- (!FirstTemplateArgs && SecondTemplateArgs)) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodNoTemplateArguments)
- << FirstMethodType << FirstName << (FirstTemplateArgs != nullptr);
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodNoTemplateArguments)
- << SecondMethodType << SecondName
- << (SecondTemplateArgs != nullptr);
- Diagnosed = true;
- break;
- }
- if (FirstTemplateArgs && SecondTemplateArgs) {
- // Remove pack expansions from argument list.
- auto ExpandTemplateArgumentList =
- [](const TemplateArgumentList *TAL) {
- llvm::SmallVector<const TemplateArgument *, 8> ExpandedList;
- for (const TemplateArgument &TA : TAL->asArray()) {
- if (TA.getKind() != TemplateArgument::Pack) {
- ExpandedList.push_back(&TA);
- continue;
- }
- for (const TemplateArgument &PackTA : TA.getPackAsArray()) {
- ExpandedList.push_back(&PackTA);
- }
- }
- return ExpandedList;
- };
- llvm::SmallVector<const TemplateArgument *, 8> FirstExpandedList =
- ExpandTemplateArgumentList(FirstTemplateArgs);
- llvm::SmallVector<const TemplateArgument *, 8> SecondExpandedList =
- ExpandTemplateArgumentList(SecondTemplateArgs);
- if (FirstExpandedList.size() != SecondExpandedList.size()) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(),
- MethodDifferentNumberTemplateArguments)
- << FirstMethodType << FirstName
- << (unsigned)FirstExpandedList.size();
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(),
- MethodDifferentNumberTemplateArguments)
- << SecondMethodType << SecondName
- << (unsigned)SecondExpandedList.size();
- Diagnosed = true;
- break;
- }
- bool TemplateArgumentMismatch = false;
- for (unsigned i = 0, e = FirstExpandedList.size(); i != e; ++i) {
- const TemplateArgument &FirstTA = *FirstExpandedList[i],
- &SecondTA = *SecondExpandedList[i];
- if (ComputeTemplateArgumentODRHash(FirstTA) ==
- ComputeTemplateArgumentODRHash(SecondTA)) {
- continue;
- }
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(),
- MethodDifferentTemplateArgument)
- << FirstMethodType << FirstName << FirstTA << i + 1;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(),
- MethodDifferentTemplateArgument)
- << SecondMethodType << SecondName << SecondTA << i + 1;
- TemplateArgumentMismatch = true;
- break;
- }
- if (TemplateArgumentMismatch) {
- Diagnosed = true;
- break;
- }
- }
- // Compute the hash of the method as if it has no body.
- auto ComputeCXXMethodODRHash = [&Hash](const CXXMethodDecl *D) {
- Hash.clear();
- Hash.AddFunctionDecl(D, true /*SkipBody*/);
- return Hash.CalculateHash();
- };
- // Compare the hash generated to the hash stored. A difference means
- // that a body was present in the original source. Due to merging,
- // the stardard way of detecting a body will not work.
- const bool HasFirstBody =
- ComputeCXXMethodODRHash(FirstMethod) != FirstMethod->getODRHash();
- const bool HasSecondBody =
- ComputeCXXMethodODRHash(SecondMethod) != SecondMethod->getODRHash();
- if (HasFirstBody != HasSecondBody) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodSingleBody)
- << FirstMethodType << FirstName << HasFirstBody;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodSingleBody)
- << SecondMethodType << SecondName << HasSecondBody;
- Diagnosed = true;
- break;
- }
- if (HasFirstBody && HasSecondBody) {
- ODRDiagError(FirstMethod->getLocation(),
- FirstMethod->getSourceRange(), MethodDifferentBody)
- << FirstMethodType << FirstName;
- ODRDiagNote(SecondMethod->getLocation(),
- SecondMethod->getSourceRange(), MethodDifferentBody)
- << SecondMethodType << SecondName;
- Diagnosed = true;
- break;
- }
- break;
- }
- case TypeAlias:
- case TypeDef: {
- TypedefNameDecl *FirstTD = cast<TypedefNameDecl>(FirstDecl);
- TypedefNameDecl *SecondTD = cast<TypedefNameDecl>(SecondDecl);
- auto FirstName = FirstTD->getDeclName();
- auto SecondName = SecondTD->getDeclName();
- if (FirstName != SecondName) {
- ODRDiagError(FirstTD->getLocation(), FirstTD->getSourceRange(),
- TypedefName)
- << (FirstDiffType == TypeAlias) << FirstName;
- ODRDiagNote(SecondTD->getLocation(), SecondTD->getSourceRange(),
- TypedefName)
- << (FirstDiffType == TypeAlias) << SecondName;
- Diagnosed = true;
- break;
- }
- QualType FirstType = FirstTD->getUnderlyingType();
- QualType SecondType = SecondTD->getUnderlyingType();
- if (ComputeQualTypeODRHash(FirstType) !=
- ComputeQualTypeODRHash(SecondType)) {
- ODRDiagError(FirstTD->getLocation(), FirstTD->getSourceRange(),
- TypedefType)
- << (FirstDiffType == TypeAlias) << FirstName << FirstType;
- ODRDiagNote(SecondTD->getLocation(), SecondTD->getSourceRange(),
- TypedefType)
- << (FirstDiffType == TypeAlias) << SecondName << SecondType;
- Diagnosed = true;
- break;
- }
- break;
- }
- case Var: {
- VarDecl *FirstVD = cast<VarDecl>(FirstDecl);
- VarDecl *SecondVD = cast<VarDecl>(SecondDecl);
- auto FirstName = FirstVD->getDeclName();
- auto SecondName = SecondVD->getDeclName();
- if (FirstName != SecondName) {
- ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(),
- VarName)
- << FirstName;
- ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(),
- VarName)
- << SecondName;
- Diagnosed = true;
- break;
- }
- QualType FirstType = FirstVD->getType();
- QualType SecondType = SecondVD->getType();
- if (ComputeQualTypeODRHash(FirstType) !=
- ComputeQualTypeODRHash(SecondType)) {
- ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(),
- VarType)
- << FirstName << FirstType;
- ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(),
- VarType)
- << SecondName << SecondType;
- Diagnosed = true;
- break;
- }
- const Expr *FirstInit = FirstVD->getInit();
- const Expr *SecondInit = SecondVD->getInit();
- if ((FirstInit == nullptr) != (SecondInit == nullptr)) {
- ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(),
- VarSingleInitializer)
- << FirstName << (FirstInit == nullptr)
- << (FirstInit ? FirstInit->getSourceRange(): SourceRange());
- ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(),
- VarSingleInitializer)
- << SecondName << (SecondInit == nullptr)
- << (SecondInit ? SecondInit->getSourceRange() : SourceRange());
- Diagnosed = true;
- break;
- }
- if (FirstInit && SecondInit &&
- ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) {
- ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(),
- VarDifferentInitializer)
- << FirstName << FirstInit->getSourceRange();
- ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(),
- VarDifferentInitializer)
- << SecondName << SecondInit->getSourceRange();
- Diagnosed = true;
- break;
- }
- const bool FirstIsConstexpr = FirstVD->isConstexpr();
- const bool SecondIsConstexpr = SecondVD->isConstexpr();
- if (FirstIsConstexpr != SecondIsConstexpr) {
- ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(),
- VarConstexpr)
- << FirstName << FirstIsConstexpr;
- ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(),
- VarConstexpr)
- << SecondName << SecondIsConstexpr;
- Diagnosed = true;
- break;
- }
- break;
- }
- case Friend: {
- FriendDecl *FirstFriend = cast<FriendDecl>(FirstDecl);
- FriendDecl *SecondFriend = cast<FriendDecl>(SecondDecl);
- NamedDecl *FirstND = FirstFriend->getFriendDecl();
- NamedDecl *SecondND = SecondFriend->getFriendDecl();
- TypeSourceInfo *FirstTSI = FirstFriend->getFriendType();
- TypeSourceInfo *SecondTSI = SecondFriend->getFriendType();
- if (FirstND && SecondND) {
- ODRDiagError(FirstFriend->getFriendLoc(),
- FirstFriend->getSourceRange(), FriendFunction)
- << FirstND;
- ODRDiagNote(SecondFriend->getFriendLoc(),
- SecondFriend->getSourceRange(), FriendFunction)
- << SecondND;
- Diagnosed = true;
- break;
- }
- if (FirstTSI && SecondTSI) {
- QualType FirstFriendType = FirstTSI->getType();
- QualType SecondFriendType = SecondTSI->getType();
- assert(ComputeQualTypeODRHash(FirstFriendType) !=
- ComputeQualTypeODRHash(SecondFriendType));
- ODRDiagError(FirstFriend->getFriendLoc(),
- FirstFriend->getSourceRange(), FriendType)
- << FirstFriendType;
- ODRDiagNote(SecondFriend->getFriendLoc(),
- SecondFriend->getSourceRange(), FriendType)
- << SecondFriendType;
- Diagnosed = true;
- break;
- }
- ODRDiagError(FirstFriend->getFriendLoc(), FirstFriend->getSourceRange(),
- FriendTypeFunction)
- << (FirstTSI == nullptr);
- ODRDiagNote(SecondFriend->getFriendLoc(),
- SecondFriend->getSourceRange(), FriendTypeFunction)
- << (SecondTSI == nullptr);
- Diagnosed = true;
- break;
- }
- case FunctionTemplate: {
- FunctionTemplateDecl *FirstTemplate =
- cast<FunctionTemplateDecl>(FirstDecl);
- FunctionTemplateDecl *SecondTemplate =
- cast<FunctionTemplateDecl>(SecondDecl);
- TemplateParameterList *FirstTPL =
- FirstTemplate->getTemplateParameters();
- TemplateParameterList *SecondTPL =
- SecondTemplate->getTemplateParameters();
- if (FirstTPL->size() != SecondTPL->size()) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateDifferentNumberParameters)
- << FirstTemplate << FirstTPL->size();
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateDifferentNumberParameters)
- << SecondTemplate << SecondTPL->size();
- Diagnosed = true;
- break;
- }
- bool ParameterMismatch = false;
- for (unsigned i = 0, e = FirstTPL->size(); i != e; ++i) {
- NamedDecl *FirstParam = FirstTPL->getParam(i);
- NamedDecl *SecondParam = SecondTPL->getParam(i);
- if (FirstParam->getKind() != SecondParam->getKind()) {
- enum {
- TemplateTypeParameter,
- NonTypeTemplateParameter,
- TemplateTemplateParameter,
- };
- auto GetParamType = [](NamedDecl *D) {
- switch (D->getKind()) {
- default:
- llvm_unreachable("Unexpected template parameter type");
- case Decl::TemplateTypeParm:
- return TemplateTypeParameter;
- case Decl::NonTypeTemplateParm:
- return NonTypeTemplateParameter;
- case Decl::TemplateTemplateParm:
- return TemplateTemplateParameter;
- }
- };
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentKind)
- << FirstTemplate << (i + 1) << GetParamType(FirstParam);
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentKind)
- << SecondTemplate << (i + 1) << GetParamType(SecondParam);
- ParameterMismatch = true;
- break;
- }
- if (FirstParam->getName() != SecondParam->getName()) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterName)
- << FirstTemplate << (i + 1) << (bool)FirstParam->getIdentifier()
- << FirstParam;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterName)
- << SecondTemplate << (i + 1)
- << (bool)SecondParam->getIdentifier() << SecondParam;
- ParameterMismatch = true;
- break;
- }
- if (isa<TemplateTypeParmDecl>(FirstParam) &&
- isa<TemplateTypeParmDecl>(SecondParam)) {
- TemplateTypeParmDecl *FirstTTPD =
- cast<TemplateTypeParmDecl>(FirstParam);
- TemplateTypeParmDecl *SecondTTPD =
- cast<TemplateTypeParmDecl>(SecondParam);
- bool HasFirstDefaultArgument =
- FirstTTPD->hasDefaultArgument() &&
- !FirstTTPD->defaultArgumentWasInherited();
- bool HasSecondDefaultArgument =
- SecondTTPD->hasDefaultArgument() &&
- !SecondTTPD->defaultArgumentWasInherited();
- if (HasFirstDefaultArgument != HasSecondDefaultArgument) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterSingleDefaultArgument)
- << FirstTemplate << (i + 1) << HasFirstDefaultArgument;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterSingleDefaultArgument)
- << SecondTemplate << (i + 1) << HasSecondDefaultArgument;
- ParameterMismatch = true;
- break;
- }
- if (HasFirstDefaultArgument && HasSecondDefaultArgument) {
- QualType FirstType = FirstTTPD->getDefaultArgument();
- QualType SecondType = SecondTTPD->getDefaultArgument();
- if (ComputeQualTypeODRHash(FirstType) !=
- ComputeQualTypeODRHash(SecondType)) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentDefaultArgument)
- << FirstTemplate << (i + 1) << FirstType;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentDefaultArgument)
- << SecondTemplate << (i + 1) << SecondType;
- ParameterMismatch = true;
- break;
- }
- }
- if (FirstTTPD->isParameterPack() !=
- SecondTTPD->isParameterPack()) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplatePackParameter)
- << FirstTemplate << (i + 1) << FirstTTPD->isParameterPack();
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplatePackParameter)
- << SecondTemplate << (i + 1) << SecondTTPD->isParameterPack();
- ParameterMismatch = true;
- break;
- }
- }
- if (isa<TemplateTemplateParmDecl>(FirstParam) &&
- isa<TemplateTemplateParmDecl>(SecondParam)) {
- TemplateTemplateParmDecl *FirstTTPD =
- cast<TemplateTemplateParmDecl>(FirstParam);
- TemplateTemplateParmDecl *SecondTTPD =
- cast<TemplateTemplateParmDecl>(SecondParam);
- TemplateParameterList *FirstTPL =
- FirstTTPD->getTemplateParameters();
- TemplateParameterList *SecondTPL =
- SecondTTPD->getTemplateParameters();
- if (ComputeTemplateParameterListODRHash(FirstTPL) !=
- ComputeTemplateParameterListODRHash(SecondTPL)) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentType)
- << FirstTemplate << (i + 1);
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentType)
- << SecondTemplate << (i + 1);
- ParameterMismatch = true;
- break;
- }
- bool HasFirstDefaultArgument =
- FirstTTPD->hasDefaultArgument() &&
- !FirstTTPD->defaultArgumentWasInherited();
- bool HasSecondDefaultArgument =
- SecondTTPD->hasDefaultArgument() &&
- !SecondTTPD->defaultArgumentWasInherited();
- if (HasFirstDefaultArgument != HasSecondDefaultArgument) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterSingleDefaultArgument)
- << FirstTemplate << (i + 1) << HasFirstDefaultArgument;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterSingleDefaultArgument)
- << SecondTemplate << (i + 1) << HasSecondDefaultArgument;
- ParameterMismatch = true;
- break;
- }
- if (HasFirstDefaultArgument && HasSecondDefaultArgument) {
- TemplateArgument FirstTA =
- FirstTTPD->getDefaultArgument().getArgument();
- TemplateArgument SecondTA =
- SecondTTPD->getDefaultArgument().getArgument();
- if (ComputeTemplateArgumentODRHash(FirstTA) !=
- ComputeTemplateArgumentODRHash(SecondTA)) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentDefaultArgument)
- << FirstTemplate << (i + 1) << FirstTA;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentDefaultArgument)
- << SecondTemplate << (i + 1) << SecondTA;
- ParameterMismatch = true;
- break;
- }
- }
- if (FirstTTPD->isParameterPack() !=
- SecondTTPD->isParameterPack()) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplatePackParameter)
- << FirstTemplate << (i + 1) << FirstTTPD->isParameterPack();
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplatePackParameter)
- << SecondTemplate << (i + 1) << SecondTTPD->isParameterPack();
- ParameterMismatch = true;
- break;
- }
- }
- if (isa<NonTypeTemplateParmDecl>(FirstParam) &&
- isa<NonTypeTemplateParmDecl>(SecondParam)) {
- NonTypeTemplateParmDecl *FirstNTTPD =
- cast<NonTypeTemplateParmDecl>(FirstParam);
- NonTypeTemplateParmDecl *SecondNTTPD =
- cast<NonTypeTemplateParmDecl>(SecondParam);
- QualType FirstType = FirstNTTPD->getType();
- QualType SecondType = SecondNTTPD->getType();
- if (ComputeQualTypeODRHash(FirstType) !=
- ComputeQualTypeODRHash(SecondType)) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentType)
- << FirstTemplate << (i + 1);
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentType)
- << SecondTemplate << (i + 1);
- ParameterMismatch = true;
- break;
- }
- bool HasFirstDefaultArgument =
- FirstNTTPD->hasDefaultArgument() &&
- !FirstNTTPD->defaultArgumentWasInherited();
- bool HasSecondDefaultArgument =
- SecondNTTPD->hasDefaultArgument() &&
- !SecondNTTPD->defaultArgumentWasInherited();
- if (HasFirstDefaultArgument != HasSecondDefaultArgument) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterSingleDefaultArgument)
- << FirstTemplate << (i + 1) << HasFirstDefaultArgument;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterSingleDefaultArgument)
- << SecondTemplate << (i + 1) << HasSecondDefaultArgument;
- ParameterMismatch = true;
- break;
- }
- if (HasFirstDefaultArgument && HasSecondDefaultArgument) {
- Expr *FirstDefaultArgument = FirstNTTPD->getDefaultArgument();
- Expr *SecondDefaultArgument = SecondNTTPD->getDefaultArgument();
- if (ComputeODRHash(FirstDefaultArgument) !=
- ComputeODRHash(SecondDefaultArgument)) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentDefaultArgument)
- << FirstTemplate << (i + 1) << FirstDefaultArgument;
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplateParameterDifferentDefaultArgument)
- << SecondTemplate << (i + 1) << SecondDefaultArgument;
- ParameterMismatch = true;
- break;
- }
- }
- if (FirstNTTPD->isParameterPack() !=
- SecondNTTPD->isParameterPack()) {
- ODRDiagError(FirstTemplate->getLocation(),
- FirstTemplate->getSourceRange(),
- FunctionTemplatePackParameter)
- << FirstTemplate << (i + 1) << FirstNTTPD->isParameterPack();
- ODRDiagNote(SecondTemplate->getLocation(),
- SecondTemplate->getSourceRange(),
- FunctionTemplatePackParameter)
- << SecondTemplate << (i + 1)
- << SecondNTTPD->isParameterPack();
- ParameterMismatch = true;
- break;
- }
- }
- }
- if (ParameterMismatch) {
- Diagnosed = true;
- break;
- }
- break;
- }
- }
- if (Diagnosed)
- continue;
- Diag(FirstDecl->getLocation(),
- diag::err_module_odr_violation_mismatch_decl_unknown)
- << FirstRecord << FirstModule.empty() << FirstModule << FirstDiffType
- << FirstDecl->getSourceRange();
- Diag(SecondDecl->getLocation(),
- diag::note_module_odr_violation_mismatch_decl_unknown)
- << SecondModule << FirstDiffType << SecondDecl->getSourceRange();
- Diagnosed = true;
- }
- if (!Diagnosed) {
- // All definitions are updates to the same declaration. This happens if a
- // module instantiates the declaration of a class template specialization
- // and two or more other modules instantiate its definition.
- //
- // FIXME: Indicate which modules had instantiations of this definition.
- // FIXME: How can this even happen?
- Diag(Merge.first->getLocation(),
- diag::err_module_odr_violation_different_instantiations)
- << Merge.first;
- }
- }
- // Issue ODR failures diagnostics for functions.
- for (auto &Merge : FunctionOdrMergeFailures) {
- enum ODRFunctionDifference {
- ReturnType,
- ParameterName,
- ParameterType,
- ParameterSingleDefaultArgument,
- ParameterDifferentDefaultArgument,
- FunctionBody,
- };
- FunctionDecl *FirstFunction = Merge.first;
- std::string FirstModule = getOwningModuleNameForDiagnostic(FirstFunction);
- bool Diagnosed = false;
- for (auto &SecondFunction : Merge.second) {
- if (FirstFunction == SecondFunction)
- continue;
- std::string SecondModule =
- getOwningModuleNameForDiagnostic(SecondFunction);
- auto ODRDiagError = [FirstFunction, &FirstModule,
- this](SourceLocation Loc, SourceRange Range,
- ODRFunctionDifference DiffType) {
- return Diag(Loc, diag::err_module_odr_violation_function)
- << FirstFunction << FirstModule.empty() << FirstModule << Range
- << DiffType;
- };
- auto ODRDiagNote = [&SecondModule, this](SourceLocation Loc,
- SourceRange Range,
- ODRFunctionDifference DiffType) {
- return Diag(Loc, diag::note_module_odr_violation_function)
- << SecondModule << Range << DiffType;
- };
- if (ComputeQualTypeODRHash(FirstFunction->getReturnType()) !=
- ComputeQualTypeODRHash(SecondFunction->getReturnType())) {
- ODRDiagError(FirstFunction->getReturnTypeSourceRange().getBegin(),
- FirstFunction->getReturnTypeSourceRange(), ReturnType)
- << FirstFunction->getReturnType();
- ODRDiagNote(SecondFunction->getReturnTypeSourceRange().getBegin(),
- SecondFunction->getReturnTypeSourceRange(), ReturnType)
- << SecondFunction->getReturnType();
- Diagnosed = true;
- break;
- }
- assert(FirstFunction->param_size() == SecondFunction->param_size() &&
- "Merged functions with different number of parameters");
- auto ParamSize = FirstFunction->param_size();
- bool ParameterMismatch = false;
- for (unsigned I = 0; I < ParamSize; ++I) {
- auto *FirstParam = FirstFunction->getParamDecl(I);
- auto *SecondParam = SecondFunction->getParamDecl(I);
- assert(getContext().hasSameType(FirstParam->getType(),
- SecondParam->getType()) &&
- "Merged function has different parameter types.");
- if (FirstParam->getDeclName() != SecondParam->getDeclName()) {
- ODRDiagError(FirstParam->getLocation(), FirstParam->getSourceRange(),
- ParameterName)
- << I + 1 << FirstParam->getDeclName();
- ODRDiagNote(SecondParam->getLocation(), SecondParam->getSourceRange(),
- ParameterName)
- << I + 1 << SecondParam->getDeclName();
- ParameterMismatch = true;
- break;
- };
- QualType FirstParamType = FirstParam->getType();
- QualType SecondParamType = SecondParam->getType();
- if (FirstParamType != SecondParamType &&
- ComputeQualTypeODRHash(FirstParamType) !=
- ComputeQualTypeODRHash(SecondParamType)) {
- if (const DecayedType *ParamDecayedType =
- FirstParamType->getAs<DecayedType>()) {
- ODRDiagError(FirstParam->getLocation(),
- FirstParam->getSourceRange(), ParameterType)
- << (I + 1) << FirstParamType << true
- << ParamDecayedType->getOriginalType();
- } else {
- ODRDiagError(FirstParam->getLocation(),
- FirstParam->getSourceRange(), ParameterType)
- << (I + 1) << FirstParamType << false;
- }
- if (const DecayedType *ParamDecayedType =
- SecondParamType->getAs<DecayedType>()) {
- ODRDiagNote(SecondParam->getLocation(),
- SecondParam->getSourceRange(), ParameterType)
- << (I + 1) << SecondParamType << true
- << ParamDecayedType->getOriginalType();
- } else {
- ODRDiagNote(SecondParam->getLocation(),
- SecondParam->getSourceRange(), ParameterType)
- << (I + 1) << SecondParamType << false;
- }
- ParameterMismatch = true;
- break;
- }
- const Expr *FirstInit = FirstParam->getInit();
- const Expr *SecondInit = SecondParam->getInit();
- if ((FirstInit == nullptr) != (SecondInit == nullptr)) {
- ODRDiagError(FirstParam->getLocation(), FirstParam->getSourceRange(),
- ParameterSingleDefaultArgument)
- << (I + 1) << (FirstInit == nullptr)
- << (FirstInit ? FirstInit->getSourceRange() : SourceRange());
- ODRDiagNote(SecondParam->getLocation(), SecondParam->getSourceRange(),
- ParameterSingleDefaultArgument)
- << (I + 1) << (SecondInit == nullptr)
- << (SecondInit ? SecondInit->getSourceRange() : SourceRange());
- ParameterMismatch = true;
- break;
- }
- if (FirstInit && SecondInit &&
- ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) {
- ODRDiagError(FirstParam->getLocation(), FirstParam->getSourceRange(),
- ParameterDifferentDefaultArgument)
- << (I + 1) << FirstInit->getSourceRange();
- ODRDiagNote(SecondParam->getLocation(), SecondParam->getSourceRange(),
- ParameterDifferentDefaultArgument)
- << (I + 1) << SecondInit->getSourceRange();
- ParameterMismatch = true;
- break;
- }
- assert(ComputeSubDeclODRHash(FirstParam) ==
- ComputeSubDeclODRHash(SecondParam) &&
- "Undiagnosed parameter difference.");
- }
- if (ParameterMismatch) {
- Diagnosed = true;
- break;
- }
- // If no error has been generated before now, assume the problem is in
- // the body and generate a message.
- ODRDiagError(FirstFunction->getLocation(),
- FirstFunction->getSourceRange(), FunctionBody);
- ODRDiagNote(SecondFunction->getLocation(),
- SecondFunction->getSourceRange(), FunctionBody);
- Diagnosed = true;
- break;
- }
- (void)Diagnosed;
- assert(Diagnosed && "Unable to emit ODR diagnostic.");
- }
- // Issue ODR failures diagnostics for enums.
- for (auto &Merge : EnumOdrMergeFailures) {
- enum ODREnumDifference {
- SingleScopedEnum,
- EnumTagKeywordMismatch,
- SingleSpecifiedType,
- DifferentSpecifiedTypes,
- DifferentNumberEnumConstants,
- EnumConstantName,
- EnumConstantSingleInitilizer,
- EnumConstantDifferentInitilizer,
- };
- // If we've already pointed out a specific problem with this enum, don't
- // bother issuing a general "something's different" diagnostic.
- if (!DiagnosedOdrMergeFailures.insert(Merge.first).second)
- continue;
- EnumDecl *FirstEnum = Merge.first;
- std::string FirstModule = getOwningModuleNameForDiagnostic(FirstEnum);
- using DeclHashes =
- llvm::SmallVector<std::pair<EnumConstantDecl *, unsigned>, 4>;
- auto PopulateHashes = [&ComputeSubDeclODRHash, FirstEnum](
- DeclHashes &Hashes, EnumDecl *Enum) {
- for (auto *D : Enum->decls()) {
- // Due to decl merging, the first EnumDecl is the parent of
- // Decls in both records.
- if (!ODRHash::isWhitelistedDecl(D, FirstEnum))
- continue;
- assert(isa<EnumConstantDecl>(D) && "Unexpected Decl kind");
- Hashes.emplace_back(cast<EnumConstantDecl>(D),
- ComputeSubDeclODRHash(D));
- }
- };
- DeclHashes FirstHashes;
- PopulateHashes(FirstHashes, FirstEnum);
- bool Diagnosed = false;
- for (auto &SecondEnum : Merge.second) {
- if (FirstEnum == SecondEnum)
- continue;
- std::string SecondModule =
- getOwningModuleNameForDiagnostic(SecondEnum);
- auto ODRDiagError = [FirstEnum, &FirstModule,
- this](SourceLocation Loc, SourceRange Range,
- ODREnumDifference DiffType) {
- return Diag(Loc, diag::err_module_odr_violation_enum)
- << FirstEnum << FirstModule.empty() << FirstModule << Range
- << DiffType;
- };
- auto ODRDiagNote = [&SecondModule, this](SourceLocation Loc,
- SourceRange Range,
- ODREnumDifference DiffType) {
- return Diag(Loc, diag::note_module_odr_violation_enum)
- << SecondModule << Range << DiffType;
- };
- if (FirstEnum->isScoped() != SecondEnum->isScoped()) {
- ODRDiagError(FirstEnum->getLocation(), FirstEnum->getSourceRange(),
- SingleScopedEnum)
- << FirstEnum->isScoped();
- ODRDiagNote(SecondEnum->getLocation(), SecondEnum->getSourceRange(),
- SingleScopedEnum)
- << SecondEnum->isScoped();
- Diagnosed = true;
- continue;
- }
- if (FirstEnum->isScoped() && SecondEnum->isScoped()) {
- if (FirstEnum->isScopedUsingClassTag() !=
- SecondEnum->isScopedUsingClassTag()) {
- ODRDiagError(FirstEnum->getLocation(), FirstEnum->getSourceRange(),
- EnumTagKeywordMismatch)
- << FirstEnum->isScopedUsingClassTag();
- ODRDiagNote(SecondEnum->getLocation(), SecondEnum->getSourceRange(),
- EnumTagKeywordMismatch)
- << SecondEnum->isScopedUsingClassTag();
- Diagnosed = true;
- continue;
- }
- }
- QualType FirstUnderlyingType =
- FirstEnum->getIntegerTypeSourceInfo()
- ? FirstEnum->getIntegerTypeSourceInfo()->getType()
- : QualType();
- QualType SecondUnderlyingType =
- SecondEnum->getIntegerTypeSourceInfo()
- ? SecondEnum->getIntegerTypeSourceInfo()->getType()
- : QualType();
- if (FirstUnderlyingType.isNull() != SecondUnderlyingType.isNull()) {
- ODRDiagError(FirstEnum->getLocation(), FirstEnum->getSourceRange(),
- SingleSpecifiedType)
- << !FirstUnderlyingType.isNull();
- ODRDiagNote(SecondEnum->getLocation(), SecondEnum->getSourceRange(),
- SingleSpecifiedType)
- << !SecondUnderlyingType.isNull();
- Diagnosed = true;
- continue;
- }
- if (!FirstUnderlyingType.isNull() && !SecondUnderlyingType.isNull()) {
- if (ComputeQualTypeODRHash(FirstUnderlyingType) !=
- ComputeQualTypeODRHash(SecondUnderlyingType)) {
- ODRDiagError(FirstEnum->getLocation(), FirstEnum->getSourceRange(),
- DifferentSpecifiedTypes)
- << FirstUnderlyingType;
- ODRDiagNote(SecondEnum->getLocation(), SecondEnum->getSourceRange(),
- DifferentSpecifiedTypes)
- << SecondUnderlyingType;
- Diagnosed = true;
- continue;
- }
- }
- DeclHashes SecondHashes;
- PopulateHashes(SecondHashes, SecondEnum);
- if (FirstHashes.size() != SecondHashes.size()) {
- ODRDiagError(FirstEnum->getLocation(), FirstEnum->getSourceRange(),
- DifferentNumberEnumConstants)
- << (int)FirstHashes.size();
- ODRDiagNote(SecondEnum->getLocation(), SecondEnum->getSourceRange(),
- DifferentNumberEnumConstants)
- << (int)SecondHashes.size();
- Diagnosed = true;
- continue;
- }
- for (unsigned I = 0; I < FirstHashes.size(); ++I) {
- if (FirstHashes[I].second == SecondHashes[I].second)
- continue;
- const EnumConstantDecl *FirstEnumConstant = FirstHashes[I].first;
- const EnumConstantDecl *SecondEnumConstant = SecondHashes[I].first;
- if (FirstEnumConstant->getDeclName() !=
- SecondEnumConstant->getDeclName()) {
- ODRDiagError(FirstEnumConstant->getLocation(),
- FirstEnumConstant->getSourceRange(), EnumConstantName)
- << I + 1 << FirstEnumConstant;
- ODRDiagNote(SecondEnumConstant->getLocation(),
- SecondEnumConstant->getSourceRange(), EnumConstantName)
- << I + 1 << SecondEnumConstant;
- Diagnosed = true;
- break;
- }
- const Expr *FirstInit = FirstEnumConstant->getInitExpr();
- const Expr *SecondInit = SecondEnumConstant->getInitExpr();
- if (!FirstInit && !SecondInit)
- continue;
- if (!FirstInit || !SecondInit) {
- ODRDiagError(FirstEnumConstant->getLocation(),
- FirstEnumConstant->getSourceRange(),
- EnumConstantSingleInitilizer)
- << I + 1 << FirstEnumConstant << (FirstInit != nullptr);
- ODRDiagNote(SecondEnumConstant->getLocation(),
- SecondEnumConstant->getSourceRange(),
- EnumConstantSingleInitilizer)
- << I + 1 << SecondEnumConstant << (SecondInit != nullptr);
- Diagnosed = true;
- break;
- }
- if (ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) {
- ODRDiagError(FirstEnumConstant->getLocation(),
- FirstEnumConstant->getSourceRange(),
- EnumConstantDifferentInitilizer)
- << I + 1 << FirstEnumConstant;
- ODRDiagNote(SecondEnumConstant->getLocation(),
- SecondEnumConstant->getSourceRange(),
- EnumConstantDifferentInitilizer)
- << I + 1 << SecondEnumConstant;
- Diagnosed = true;
- break;
- }
- }
- }
- (void)Diagnosed;
- assert(Diagnosed && "Unable to emit ODR diagnostic.");
- }
- }
- void ASTReader::StartedDeserializing() {
- if (++NumCurrentElementsDeserializing == 1 && ReadTimer.get())
- ReadTimer->startTimer();
- }
- void ASTReader::FinishedDeserializing() {
- assert(NumCurrentElementsDeserializing &&
- "FinishedDeserializing not paired with StartedDeserializing");
- if (NumCurrentElementsDeserializing == 1) {
- // We decrease NumCurrentElementsDeserializing only after pending actions
- // are finished, to avoid recursively re-calling finishPendingActions().
- finishPendingActions();
- }
- --NumCurrentElementsDeserializing;
- if (NumCurrentElementsDeserializing == 0) {
- // Propagate exception specification and deduced type updates along
- // redeclaration chains.
- //
- // We do this now rather than in finishPendingActions because we want to
- // be able to walk the complete redeclaration chains of the updated decls.
- while (!PendingExceptionSpecUpdates.empty() ||
- !PendingDeducedTypeUpdates.empty()) {
- auto ESUpdates = std::move(PendingExceptionSpecUpdates);
- PendingExceptionSpecUpdates.clear();
- for (auto Update : ESUpdates) {
- ProcessingUpdatesRAIIObj ProcessingUpdates(*this);
- auto *FPT = Update.second->getType()->castAs<FunctionProtoType>();
- auto ESI = FPT->getExtProtoInfo().ExceptionSpec;
- if (auto *Listener = getContext().getASTMutationListener())
- Listener->ResolvedExceptionSpec(cast<FunctionDecl>(Update.second));
- for (auto *Redecl : Update.second->redecls())
- getContext().adjustExceptionSpec(cast<FunctionDecl>(Redecl), ESI);
- }
- auto DTUpdates = std::move(PendingDeducedTypeUpdates);
- PendingDeducedTypeUpdates.clear();
- for (auto Update : DTUpdates) {
- ProcessingUpdatesRAIIObj ProcessingUpdates(*this);
- // FIXME: If the return type is already deduced, check that it matches.
- getContext().adjustDeducedFunctionResultType(Update.first,
- Update.second);
- }
- }
- if (ReadTimer)
- ReadTimer->stopTimer();
- diagnoseOdrViolations();
- // We are not in recursive loading, so it's safe to pass the "interesting"
- // decls to the consumer.
- if (Consumer)
- PassInterestingDeclsToConsumer();
- }
- }
- void ASTReader::pushExternalDeclIntoScope(NamedDecl *D, DeclarationName Name) {
- if (IdentifierInfo *II = Name.getAsIdentifierInfo()) {
- // Remove any fake results before adding any real ones.
- auto It = PendingFakeLookupResults.find(II);
- if (It != PendingFakeLookupResults.end()) {
- for (auto *ND : It->second)
- SemaObj->IdResolver.RemoveDecl(ND);
- // FIXME: this works around module+PCH performance issue.
- // Rather than erase the result from the map, which is O(n), just clear
- // the vector of NamedDecls.
- It->second.clear();
- }
- }
- if (SemaObj->IdResolver.tryAddTopLevelDecl(D, Name) && SemaObj->TUScope) {
- SemaObj->TUScope->AddDecl(D);
- } else if (SemaObj->TUScope) {
- // Adding the decl to IdResolver may have failed because it was already in
- // (even though it was not added in scope). If it is already in, make sure
- // it gets in the scope as well.
- if (std::find(SemaObj->IdResolver.begin(Name),
- SemaObj->IdResolver.end(), D) != SemaObj->IdResolver.end())
- SemaObj->TUScope->AddDecl(D);
- }
- }
- ASTReader::ASTReader(Preprocessor &PP, InMemoryModuleCache &ModuleCache,
- ASTContext *Context,
- const PCHContainerReader &PCHContainerRdr,
- ArrayRef<std::shared_ptr<ModuleFileExtension>> Extensions,
- StringRef isysroot, bool DisableValidation,
- bool AllowASTWithCompilerErrors,
- bool AllowConfigurationMismatch, bool ValidateSystemInputs,
- bool ValidateASTInputFilesContent, bool UseGlobalIndex,
- std::unique_ptr<llvm::Timer> ReadTimer)
- : Listener(DisableValidation
- ? cast<ASTReaderListener>(new SimpleASTReaderListener(PP))
- : cast<ASTReaderListener>(new PCHValidator(PP, *this))),
- SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()),
- PCHContainerRdr(PCHContainerRdr), Diags(PP.getDiagnostics()), PP(PP),
- ContextObj(Context), ModuleMgr(PP.getFileManager(), ModuleCache,
- PCHContainerRdr, PP.getHeaderSearchInfo()),
- DummyIdResolver(PP), ReadTimer(std::move(ReadTimer)), isysroot(isysroot),
- DisableValidation(DisableValidation),
- AllowASTWithCompilerErrors(AllowASTWithCompilerErrors),
- AllowConfigurationMismatch(AllowConfigurationMismatch),
- ValidateSystemInputs(ValidateSystemInputs),
- ValidateASTInputFilesContent(ValidateASTInputFilesContent),
- UseGlobalIndex(UseGlobalIndex), CurrSwitchCaseStmts(&SwitchCaseStmts) {
- SourceMgr.setExternalSLocEntrySource(this);
- for (const auto &Ext : Extensions) {
- auto BlockName = Ext->getExtensionMetadata().BlockName;
- auto Known = ModuleFileExtensions.find(BlockName);
- if (Known != ModuleFileExtensions.end()) {
- Diags.Report(diag::warn_duplicate_module_file_extension)
- << BlockName;
- continue;
- }
- ModuleFileExtensions.insert({BlockName, Ext});
- }
- }
- ASTReader::~ASTReader() {
- if (OwnsDeserializationListener)
- delete DeserializationListener;
- }
- IdentifierResolver &ASTReader::getIdResolver() {
- return SemaObj ? SemaObj->IdResolver : DummyIdResolver;
- }
- Expected<unsigned> ASTRecordReader::readRecord(llvm::BitstreamCursor &Cursor,
- unsigned AbbrevID) {
- Idx = 0;
- Record.clear();
- return Cursor.readRecord(AbbrevID, Record);
- }
- //===----------------------------------------------------------------------===//
- //// OMPClauseReader implementation
- ////===----------------------------------------------------------------------===//
- OMPClause *OMPClauseReader::readClause() {
- OMPClause *C = nullptr;
- switch (Record.readInt()) {
- case OMPC_if:
- C = new (Context) OMPIfClause();
- break;
- case OMPC_final:
- C = new (Context) OMPFinalClause();
- break;
- case OMPC_num_threads:
- C = new (Context) OMPNumThreadsClause();
- break;
- case OMPC_safelen:
- C = new (Context) OMPSafelenClause();
- break;
- case OMPC_simdlen:
- C = new (Context) OMPSimdlenClause();
- break;
- case OMPC_allocator:
- C = new (Context) OMPAllocatorClause();
- break;
- case OMPC_collapse:
- C = new (Context) OMPCollapseClause();
- break;
- case OMPC_default:
- C = new (Context) OMPDefaultClause();
- break;
- case OMPC_proc_bind:
- C = new (Context) OMPProcBindClause();
- break;
- case OMPC_schedule:
- C = new (Context) OMPScheduleClause();
- break;
- case OMPC_ordered:
- C = OMPOrderedClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_nowait:
- C = new (Context) OMPNowaitClause();
- break;
- case OMPC_untied:
- C = new (Context) OMPUntiedClause();
- break;
- case OMPC_mergeable:
- C = new (Context) OMPMergeableClause();
- break;
- case OMPC_read:
- C = new (Context) OMPReadClause();
- break;
- case OMPC_write:
- C = new (Context) OMPWriteClause();
- break;
- case OMPC_update:
- C = new (Context) OMPUpdateClause();
- break;
- case OMPC_capture:
- C = new (Context) OMPCaptureClause();
- break;
- case OMPC_seq_cst:
- C = new (Context) OMPSeqCstClause();
- break;
- case OMPC_threads:
- C = new (Context) OMPThreadsClause();
- break;
- case OMPC_simd:
- C = new (Context) OMPSIMDClause();
- break;
- case OMPC_nogroup:
- C = new (Context) OMPNogroupClause();
- break;
- case OMPC_unified_address:
- C = new (Context) OMPUnifiedAddressClause();
- break;
- case OMPC_unified_shared_memory:
- C = new (Context) OMPUnifiedSharedMemoryClause();
- break;
- case OMPC_reverse_offload:
- C = new (Context) OMPReverseOffloadClause();
- break;
- case OMPC_dynamic_allocators:
- C = new (Context) OMPDynamicAllocatorsClause();
- break;
- case OMPC_atomic_default_mem_order:
- C = new (Context) OMPAtomicDefaultMemOrderClause();
- break;
- case OMPC_private:
- C = OMPPrivateClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_firstprivate:
- C = OMPFirstprivateClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_lastprivate:
- C = OMPLastprivateClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_shared:
- C = OMPSharedClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_reduction:
- C = OMPReductionClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_task_reduction:
- C = OMPTaskReductionClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_in_reduction:
- C = OMPInReductionClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_linear:
- C = OMPLinearClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_aligned:
- C = OMPAlignedClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_copyin:
- C = OMPCopyinClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_copyprivate:
- C = OMPCopyprivateClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_flush:
- C = OMPFlushClause::CreateEmpty(Context, Record.readInt());
- break;
- case OMPC_depend: {
- unsigned NumVars = Record.readInt();
- unsigned NumLoops = Record.readInt();
- C = OMPDependClause::CreateEmpty(Context, NumVars, NumLoops);
- break;
- }
- case OMPC_device:
- C = new (Context) OMPDeviceClause();
- break;
- case OMPC_map: {
- OMPMappableExprListSizeTy Sizes;
- Sizes.NumVars = Record.readInt();
- Sizes.NumUniqueDeclarations = Record.readInt();
- Sizes.NumComponentLists = Record.readInt();
- Sizes.NumComponents = Record.readInt();
- C = OMPMapClause::CreateEmpty(Context, Sizes);
- break;
- }
- case OMPC_num_teams:
- C = new (Context) OMPNumTeamsClause();
- break;
- case OMPC_thread_limit:
- C = new (Context) OMPThreadLimitClause();
- break;
- case OMPC_priority:
- C = new (Context) OMPPriorityClause();
- break;
- case OMPC_grainsize:
- C = new (Context) OMPGrainsizeClause();
- break;
- case OMPC_num_tasks:
- C = new (Context) OMPNumTasksClause();
- break;
- case OMPC_hint:
- C = new (Context) OMPHintClause();
- break;
- case OMPC_dist_schedule:
- C = new (Context) OMPDistScheduleClause();
- break;
- case OMPC_defaultmap:
- C = new (Context) OMPDefaultmapClause();
- break;
- case OMPC_to: {
- OMPMappableExprListSizeTy Sizes;
- Sizes.NumVars = Record.readInt();
- Sizes.NumUniqueDeclarations = Record.readInt();
- Sizes.NumComponentLists = Record.readInt();
- Sizes.NumComponents = Record.readInt();
- C = OMPToClause::CreateEmpty(Context, Sizes);
- break;
- }
- case OMPC_from: {
- OMPMappableExprListSizeTy Sizes;
- Sizes.NumVars = Record.readInt();
- Sizes.NumUniqueDeclarations = Record.readInt();
- Sizes.NumComponentLists = Record.readInt();
- Sizes.NumComponents = Record.readInt();
- C = OMPFromClause::CreateEmpty(Context, Sizes);
- break;
- }
- case OMPC_use_device_ptr: {
- OMPMappableExprListSizeTy Sizes;
- Sizes.NumVars = Record.readInt();
- Sizes.NumUniqueDeclarations = Record.readInt();
- Sizes.NumComponentLists = Record.readInt();
- Sizes.NumComponents = Record.readInt();
- C = OMPUseDevicePtrClause::CreateEmpty(Context, Sizes);
- break;
- }
- case OMPC_is_device_ptr: {
- OMPMappableExprListSizeTy Sizes;
- Sizes.NumVars = Record.readInt();
- Sizes.NumUniqueDeclarations = Record.readInt();
- Sizes.NumComponentLists = Record.readInt();
- Sizes.NumComponents = Record.readInt();
- C = OMPIsDevicePtrClause::CreateEmpty(Context, Sizes);
- break;
- }
- case OMPC_allocate:
- C = OMPAllocateClause::CreateEmpty(Context, Record.readInt());
- break;
- }
- assert(C && "Unknown OMPClause type");
- Visit(C);
- C->setLocStart(Record.readSourceLocation());
- C->setLocEnd(Record.readSourceLocation());
- return C;
- }
- void OMPClauseReader::VisitOMPClauseWithPreInit(OMPClauseWithPreInit *C) {
- C->setPreInitStmt(Record.readSubStmt(),
- static_cast<OpenMPDirectiveKind>(Record.readInt()));
- }
- void OMPClauseReader::VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *C) {
- VisitOMPClauseWithPreInit(C);
- C->setPostUpdateExpr(Record.readSubExpr());
- }
- void OMPClauseReader::VisitOMPIfClause(OMPIfClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setNameModifier(static_cast<OpenMPDirectiveKind>(Record.readInt()));
- C->setNameModifierLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- C->setCondition(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPFinalClause(OMPFinalClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setCondition(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPNumThreadsClause(OMPNumThreadsClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setNumThreads(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPSafelenClause(OMPSafelenClause *C) {
- C->setSafelen(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPSimdlenClause(OMPSimdlenClause *C) {
- C->setSimdlen(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPAllocatorClause(OMPAllocatorClause *C) {
- C->setAllocator(Record.readExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPCollapseClause(OMPCollapseClause *C) {
- C->setNumForLoops(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPDefaultClause(OMPDefaultClause *C) {
- C->setDefaultKind(
- static_cast<OpenMPDefaultClauseKind>(Record.readInt()));
- C->setLParenLoc(Record.readSourceLocation());
- C->setDefaultKindKwLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPProcBindClause(OMPProcBindClause *C) {
- C->setProcBindKind(
- static_cast<OpenMPProcBindClauseKind>(Record.readInt()));
- C->setLParenLoc(Record.readSourceLocation());
- C->setProcBindKindKwLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPScheduleClause(OMPScheduleClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setScheduleKind(
- static_cast<OpenMPScheduleClauseKind>(Record.readInt()));
- C->setFirstScheduleModifier(
- static_cast<OpenMPScheduleClauseModifier>(Record.readInt()));
- C->setSecondScheduleModifier(
- static_cast<OpenMPScheduleClauseModifier>(Record.readInt()));
- C->setChunkSize(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- C->setFirstScheduleModifierLoc(Record.readSourceLocation());
- C->setSecondScheduleModifierLoc(Record.readSourceLocation());
- C->setScheduleKindLoc(Record.readSourceLocation());
- C->setCommaLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPOrderedClause(OMPOrderedClause *C) {
- C->setNumForLoops(Record.readSubExpr());
- for (unsigned I = 0, E = C->NumberOfLoops; I < E; ++I)
- C->setLoopNumIterations(I, Record.readSubExpr());
- for (unsigned I = 0, E = C->NumberOfLoops; I < E; ++I)
- C->setLoopCounter(I, Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPNowaitClause(OMPNowaitClause *) {}
- void OMPClauseReader::VisitOMPUntiedClause(OMPUntiedClause *) {}
- void OMPClauseReader::VisitOMPMergeableClause(OMPMergeableClause *) {}
- void OMPClauseReader::VisitOMPReadClause(OMPReadClause *) {}
- void OMPClauseReader::VisitOMPWriteClause(OMPWriteClause *) {}
- void OMPClauseReader::VisitOMPUpdateClause(OMPUpdateClause *) {}
- void OMPClauseReader::VisitOMPCaptureClause(OMPCaptureClause *) {}
- void OMPClauseReader::VisitOMPSeqCstClause(OMPSeqCstClause *) {}
- void OMPClauseReader::VisitOMPThreadsClause(OMPThreadsClause *) {}
- void OMPClauseReader::VisitOMPSIMDClause(OMPSIMDClause *) {}
- void OMPClauseReader::VisitOMPNogroupClause(OMPNogroupClause *) {}
- void OMPClauseReader::VisitOMPUnifiedAddressClause(OMPUnifiedAddressClause *) {}
- void OMPClauseReader::VisitOMPUnifiedSharedMemoryClause(
- OMPUnifiedSharedMemoryClause *) {}
- void OMPClauseReader::VisitOMPReverseOffloadClause(OMPReverseOffloadClause *) {}
- void
- OMPClauseReader::VisitOMPDynamicAllocatorsClause(OMPDynamicAllocatorsClause *) {
- }
- void OMPClauseReader::VisitOMPAtomicDefaultMemOrderClause(
- OMPAtomicDefaultMemOrderClause *C) {
- C->setAtomicDefaultMemOrderKind(
- static_cast<OpenMPAtomicDefaultMemOrderClauseKind>(Record.readInt()));
- C->setLParenLoc(Record.readSourceLocation());
- C->setAtomicDefaultMemOrderKindKwLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPPrivateClause(OMPPrivateClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setPrivateCopies(Vars);
- }
- void OMPClauseReader::VisitOMPFirstprivateClause(OMPFirstprivateClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setPrivateCopies(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setInits(Vars);
- }
- void OMPClauseReader::VisitOMPLastprivateClause(OMPLastprivateClause *C) {
- VisitOMPClauseWithPostUpdate(C);
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setPrivateCopies(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setSourceExprs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setDestinationExprs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setAssignmentOps(Vars);
- }
- void OMPClauseReader::VisitOMPSharedClause(OMPSharedClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- }
- void OMPClauseReader::VisitOMPReductionClause(OMPReductionClause *C) {
- VisitOMPClauseWithPostUpdate(C);
- C->setLParenLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- NestedNameSpecifierLoc NNSL = Record.readNestedNameSpecifierLoc();
- DeclarationNameInfo DNI;
- Record.readDeclarationNameInfo(DNI);
- C->setQualifierLoc(NNSL);
- C->setNameInfo(DNI);
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setPrivates(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setLHSExprs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setRHSExprs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setReductionOps(Vars);
- }
- void OMPClauseReader::VisitOMPTaskReductionClause(OMPTaskReductionClause *C) {
- VisitOMPClauseWithPostUpdate(C);
- C->setLParenLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- NestedNameSpecifierLoc NNSL = Record.readNestedNameSpecifierLoc();
- DeclarationNameInfo DNI;
- Record.readDeclarationNameInfo(DNI);
- C->setQualifierLoc(NNSL);
- C->setNameInfo(DNI);
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setPrivates(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setLHSExprs(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setRHSExprs(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setReductionOps(Vars);
- }
- void OMPClauseReader::VisitOMPInReductionClause(OMPInReductionClause *C) {
- VisitOMPClauseWithPostUpdate(C);
- C->setLParenLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- NestedNameSpecifierLoc NNSL = Record.readNestedNameSpecifierLoc();
- DeclarationNameInfo DNI;
- Record.readDeclarationNameInfo(DNI);
- C->setQualifierLoc(NNSL);
- C->setNameInfo(DNI);
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setPrivates(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setLHSExprs(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setRHSExprs(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setReductionOps(Vars);
- Vars.clear();
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setTaskgroupDescriptors(Vars);
- }
- void OMPClauseReader::VisitOMPLinearClause(OMPLinearClause *C) {
- VisitOMPClauseWithPostUpdate(C);
- C->setLParenLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- C->setModifier(static_cast<OpenMPLinearClauseKind>(Record.readInt()));
- C->setModifierLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setPrivates(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setInits(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setUpdates(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setFinals(Vars);
- C->setStep(Record.readSubExpr());
- C->setCalcStep(Record.readSubExpr());
- Vars.clear();
- for (unsigned I = 0; I != NumVars + 1; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setUsedExprs(Vars);
- }
- void OMPClauseReader::VisitOMPAlignedClause(OMPAlignedClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- C->setAlignment(Record.readSubExpr());
- }
- void OMPClauseReader::VisitOMPCopyinClause(OMPCopyinClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Exprs;
- Exprs.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setVarRefs(Exprs);
- Exprs.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setSourceExprs(Exprs);
- Exprs.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setDestinationExprs(Exprs);
- Exprs.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setAssignmentOps(Exprs);
- }
- void OMPClauseReader::VisitOMPCopyprivateClause(OMPCopyprivateClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Exprs;
- Exprs.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setVarRefs(Exprs);
- Exprs.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setSourceExprs(Exprs);
- Exprs.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setDestinationExprs(Exprs);
- Exprs.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Exprs.push_back(Record.readSubExpr());
- C->setAssignmentOps(Exprs);
- }
- void OMPClauseReader::VisitOMPFlushClause(OMPFlushClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- }
- void OMPClauseReader::VisitOMPDependClause(OMPDependClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- C->setDependencyKind(
- static_cast<OpenMPDependClauseKind>(Record.readInt()));
- C->setDependencyLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned I = 0; I != NumVars; ++I)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- for (unsigned I = 0, E = C->getNumLoops(); I < E; ++I)
- C->setLoopData(I, Record.readSubExpr());
- }
- void OMPClauseReader::VisitOMPDeviceClause(OMPDeviceClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setDevice(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPMapClause(OMPMapClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- for (unsigned I = 0; I < OMPMapClause::NumberOfModifiers; ++I) {
- C->setMapTypeModifier(
- I, static_cast<OpenMPMapModifierKind>(Record.readInt()));
- C->setMapTypeModifierLoc(I, Record.readSourceLocation());
- }
- C->setMapperQualifierLoc(Record.readNestedNameSpecifierLoc());
- DeclarationNameInfo DNI;
- Record.readDeclarationNameInfo(DNI);
- C->setMapperIdInfo(DNI);
- C->setMapType(
- static_cast<OpenMPMapClauseKind>(Record.readInt()));
- C->setMapLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- auto NumVars = C->varlist_size();
- auto UniqueDecls = C->getUniqueDeclarationsNum();
- auto TotalLists = C->getTotalComponentListNum();
- auto TotalComponents = C->getTotalComponentsNum();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readExpr());
- C->setVarRefs(Vars);
- SmallVector<Expr *, 16> UDMappers;
- UDMappers.reserve(NumVars);
- for (unsigned I = 0; I < NumVars; ++I)
- UDMappers.push_back(Record.readExpr());
- C->setUDMapperRefs(UDMappers);
- SmallVector<ValueDecl *, 16> Decls;
- Decls.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- Decls.push_back(Record.readDeclAs<ValueDecl>());
- C->setUniqueDecls(Decls);
- SmallVector<unsigned, 16> ListsPerDecl;
- ListsPerDecl.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- ListsPerDecl.push_back(Record.readInt());
- C->setDeclNumLists(ListsPerDecl);
- SmallVector<unsigned, 32> ListSizes;
- ListSizes.reserve(TotalLists);
- for (unsigned i = 0; i < TotalLists; ++i)
- ListSizes.push_back(Record.readInt());
- C->setComponentListSizes(ListSizes);
- SmallVector<OMPClauseMappableExprCommon::MappableComponent, 32> Components;
- Components.reserve(TotalComponents);
- for (unsigned i = 0; i < TotalComponents; ++i) {
- Expr *AssociatedExpr = Record.readExpr();
- auto *AssociatedDecl = Record.readDeclAs<ValueDecl>();
- Components.push_back(OMPClauseMappableExprCommon::MappableComponent(
- AssociatedExpr, AssociatedDecl));
- }
- C->setComponents(Components, ListSizes);
- }
- void OMPClauseReader::VisitOMPAllocateClause(OMPAllocateClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- C->setColonLoc(Record.readSourceLocation());
- C->setAllocator(Record.readSubExpr());
- unsigned NumVars = C->varlist_size();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- }
- void OMPClauseReader::VisitOMPNumTeamsClause(OMPNumTeamsClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setNumTeams(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPThreadLimitClause(OMPThreadLimitClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setThreadLimit(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPPriorityClause(OMPPriorityClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setPriority(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPGrainsizeClause(OMPGrainsizeClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setGrainsize(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPNumTasksClause(OMPNumTasksClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setNumTasks(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPHintClause(OMPHintClause *C) {
- C->setHint(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPDistScheduleClause(OMPDistScheduleClause *C) {
- VisitOMPClauseWithPreInit(C);
- C->setDistScheduleKind(
- static_cast<OpenMPDistScheduleClauseKind>(Record.readInt()));
- C->setChunkSize(Record.readSubExpr());
- C->setLParenLoc(Record.readSourceLocation());
- C->setDistScheduleKindLoc(Record.readSourceLocation());
- C->setCommaLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPDefaultmapClause(OMPDefaultmapClause *C) {
- C->setDefaultmapKind(
- static_cast<OpenMPDefaultmapClauseKind>(Record.readInt()));
- C->setDefaultmapModifier(
- static_cast<OpenMPDefaultmapClauseModifier>(Record.readInt()));
- C->setLParenLoc(Record.readSourceLocation());
- C->setDefaultmapModifierLoc(Record.readSourceLocation());
- C->setDefaultmapKindLoc(Record.readSourceLocation());
- }
- void OMPClauseReader::VisitOMPToClause(OMPToClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- C->setMapperQualifierLoc(Record.readNestedNameSpecifierLoc());
- DeclarationNameInfo DNI;
- Record.readDeclarationNameInfo(DNI);
- C->setMapperIdInfo(DNI);
- auto NumVars = C->varlist_size();
- auto UniqueDecls = C->getUniqueDeclarationsNum();
- auto TotalLists = C->getTotalComponentListNum();
- auto TotalComponents = C->getTotalComponentsNum();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- SmallVector<Expr *, 16> UDMappers;
- UDMappers.reserve(NumVars);
- for (unsigned I = 0; I < NumVars; ++I)
- UDMappers.push_back(Record.readSubExpr());
- C->setUDMapperRefs(UDMappers);
- SmallVector<ValueDecl *, 16> Decls;
- Decls.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- Decls.push_back(Record.readDeclAs<ValueDecl>());
- C->setUniqueDecls(Decls);
- SmallVector<unsigned, 16> ListsPerDecl;
- ListsPerDecl.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- ListsPerDecl.push_back(Record.readInt());
- C->setDeclNumLists(ListsPerDecl);
- SmallVector<unsigned, 32> ListSizes;
- ListSizes.reserve(TotalLists);
- for (unsigned i = 0; i < TotalLists; ++i)
- ListSizes.push_back(Record.readInt());
- C->setComponentListSizes(ListSizes);
- SmallVector<OMPClauseMappableExprCommon::MappableComponent, 32> Components;
- Components.reserve(TotalComponents);
- for (unsigned i = 0; i < TotalComponents; ++i) {
- Expr *AssociatedExpr = Record.readSubExpr();
- auto *AssociatedDecl = Record.readDeclAs<ValueDecl>();
- Components.push_back(OMPClauseMappableExprCommon::MappableComponent(
- AssociatedExpr, AssociatedDecl));
- }
- C->setComponents(Components, ListSizes);
- }
- void OMPClauseReader::VisitOMPFromClause(OMPFromClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- C->setMapperQualifierLoc(Record.readNestedNameSpecifierLoc());
- DeclarationNameInfo DNI;
- Record.readDeclarationNameInfo(DNI);
- C->setMapperIdInfo(DNI);
- auto NumVars = C->varlist_size();
- auto UniqueDecls = C->getUniqueDeclarationsNum();
- auto TotalLists = C->getTotalComponentListNum();
- auto TotalComponents = C->getTotalComponentsNum();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- SmallVector<Expr *, 16> UDMappers;
- UDMappers.reserve(NumVars);
- for (unsigned I = 0; I < NumVars; ++I)
- UDMappers.push_back(Record.readSubExpr());
- C->setUDMapperRefs(UDMappers);
- SmallVector<ValueDecl *, 16> Decls;
- Decls.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- Decls.push_back(Record.readDeclAs<ValueDecl>());
- C->setUniqueDecls(Decls);
- SmallVector<unsigned, 16> ListsPerDecl;
- ListsPerDecl.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- ListsPerDecl.push_back(Record.readInt());
- C->setDeclNumLists(ListsPerDecl);
- SmallVector<unsigned, 32> ListSizes;
- ListSizes.reserve(TotalLists);
- for (unsigned i = 0; i < TotalLists; ++i)
- ListSizes.push_back(Record.readInt());
- C->setComponentListSizes(ListSizes);
- SmallVector<OMPClauseMappableExprCommon::MappableComponent, 32> Components;
- Components.reserve(TotalComponents);
- for (unsigned i = 0; i < TotalComponents; ++i) {
- Expr *AssociatedExpr = Record.readSubExpr();
- auto *AssociatedDecl = Record.readDeclAs<ValueDecl>();
- Components.push_back(OMPClauseMappableExprCommon::MappableComponent(
- AssociatedExpr, AssociatedDecl));
- }
- C->setComponents(Components, ListSizes);
- }
- void OMPClauseReader::VisitOMPUseDevicePtrClause(OMPUseDevicePtrClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- auto NumVars = C->varlist_size();
- auto UniqueDecls = C->getUniqueDeclarationsNum();
- auto TotalLists = C->getTotalComponentListNum();
- auto TotalComponents = C->getTotalComponentsNum();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setPrivateCopies(Vars);
- Vars.clear();
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setInits(Vars);
- SmallVector<ValueDecl *, 16> Decls;
- Decls.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- Decls.push_back(Record.readDeclAs<ValueDecl>());
- C->setUniqueDecls(Decls);
- SmallVector<unsigned, 16> ListsPerDecl;
- ListsPerDecl.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- ListsPerDecl.push_back(Record.readInt());
- C->setDeclNumLists(ListsPerDecl);
- SmallVector<unsigned, 32> ListSizes;
- ListSizes.reserve(TotalLists);
- for (unsigned i = 0; i < TotalLists; ++i)
- ListSizes.push_back(Record.readInt());
- C->setComponentListSizes(ListSizes);
- SmallVector<OMPClauseMappableExprCommon::MappableComponent, 32> Components;
- Components.reserve(TotalComponents);
- for (unsigned i = 0; i < TotalComponents; ++i) {
- Expr *AssociatedExpr = Record.readSubExpr();
- auto *AssociatedDecl = Record.readDeclAs<ValueDecl>();
- Components.push_back(OMPClauseMappableExprCommon::MappableComponent(
- AssociatedExpr, AssociatedDecl));
- }
- C->setComponents(Components, ListSizes);
- }
- void OMPClauseReader::VisitOMPIsDevicePtrClause(OMPIsDevicePtrClause *C) {
- C->setLParenLoc(Record.readSourceLocation());
- auto NumVars = C->varlist_size();
- auto UniqueDecls = C->getUniqueDeclarationsNum();
- auto TotalLists = C->getTotalComponentListNum();
- auto TotalComponents = C->getTotalComponentsNum();
- SmallVector<Expr *, 16> Vars;
- Vars.reserve(NumVars);
- for (unsigned i = 0; i != NumVars; ++i)
- Vars.push_back(Record.readSubExpr());
- C->setVarRefs(Vars);
- Vars.clear();
- SmallVector<ValueDecl *, 16> Decls;
- Decls.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- Decls.push_back(Record.readDeclAs<ValueDecl>());
- C->setUniqueDecls(Decls);
- SmallVector<unsigned, 16> ListsPerDecl;
- ListsPerDecl.reserve(UniqueDecls);
- for (unsigned i = 0; i < UniqueDecls; ++i)
- ListsPerDecl.push_back(Record.readInt());
- C->setDeclNumLists(ListsPerDecl);
- SmallVector<unsigned, 32> ListSizes;
- ListSizes.reserve(TotalLists);
- for (unsigned i = 0; i < TotalLists; ++i)
- ListSizes.push_back(Record.readInt());
- C->setComponentListSizes(ListSizes);
- SmallVector<OMPClauseMappableExprCommon::MappableComponent, 32> Components;
- Components.reserve(TotalComponents);
- for (unsigned i = 0; i < TotalComponents; ++i) {
- Expr *AssociatedExpr = Record.readSubExpr();
- auto *AssociatedDecl = Record.readDeclAs<ValueDecl>();
- Components.push_back(OMPClauseMappableExprCommon::MappableComponent(
- AssociatedExpr, AssociatedDecl));
- }
- C->setComponents(Components, ListSizes);
- }
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