зеркало из https://github.com/microsoft/clang-1.git
6928 строки
240 KiB
C++
6928 строки
240 KiB
C++
//===--- ASTReader.cpp - AST File Reader ------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the ASTReader class, which reads AST files.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Serialization/ASTReader.h"
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#include "clang/Serialization/ASTDeserializationListener.h"
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#include "clang/Serialization/ModuleManager.h"
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#include "clang/Serialization/SerializationDiagnostic.h"
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#include "ASTCommon.h"
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#include "ASTReaderInternals.h"
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#include "clang/Sema/Sema.h"
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#include "clang/Sema/Scope.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/AST/Expr.h"
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#include "clang/AST/ExprCXX.h"
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#include "clang/AST/NestedNameSpecifier.h"
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#include "clang/AST/Type.h"
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#include "clang/AST/TypeLocVisitor.h"
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#include "clang/Lex/MacroInfo.h"
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#include "clang/Lex/PreprocessingRecord.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Lex/PreprocessorOptions.h"
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#include "clang/Lex/HeaderSearch.h"
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#include "clang/Lex/HeaderSearchOptions.h"
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#include "clang/Basic/OnDiskHashTable.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Basic/SourceManagerInternals.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/FileSystemStatCache.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Basic/TargetOptions.h"
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#include "clang/Basic/Version.h"
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#include "clang/Basic/VersionTuple.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Bitcode/BitstreamReader.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/SaveAndRestore.h"
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#include "llvm/Support/system_error.h"
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#include <algorithm>
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#include <iterator>
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#include <cstdio>
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#include <sys/stat.h>
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using namespace clang;
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using namespace clang::serialization;
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using namespace clang::serialization::reader;
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//===----------------------------------------------------------------------===//
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// PCH validator implementation
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//===----------------------------------------------------------------------===//
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ASTReaderListener::~ASTReaderListener() {}
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/// \brief Compare the given set of language options against an existing set of
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/// language options.
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///
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/// \param Diags If non-NULL, diagnostics will be emitted via this engine.
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///
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/// \returns true if the languagae options mis-match, false otherwise.
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static bool checkLanguageOptions(const LangOptions &LangOpts,
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const LangOptions &ExistingLangOpts,
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DiagnosticsEngine *Diags) {
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#define LANGOPT(Name, Bits, Default, Description) \
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if (ExistingLangOpts.Name != LangOpts.Name) { \
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if (Diags) \
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Diags->Report(diag::err_pch_langopt_mismatch) \
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<< Description << LangOpts.Name << ExistingLangOpts.Name; \
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return true; \
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}
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#define VALUE_LANGOPT(Name, Bits, Default, Description) \
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if (ExistingLangOpts.Name != LangOpts.Name) { \
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if (Diags) \
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Diags->Report(diag::err_pch_langopt_value_mismatch) \
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<< Description; \
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return true; \
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}
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#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
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if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \
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if (Diags) \
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Diags->Report(diag::err_pch_langopt_value_mismatch) \
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<< Description; \
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return true; \
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}
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#define BENIGN_LANGOPT(Name, Bits, Default, Description)
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#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
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#include "clang/Basic/LangOptions.def"
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if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) {
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if (Diags)
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Diags->Report(diag::err_pch_langopt_value_mismatch)
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<< "target Objective-C runtime";
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return true;
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}
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return false;
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}
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/// \brief Compare the given set of target options against an existing set of
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/// target options.
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///
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/// \param Diags If non-NULL, diagnostics will be emitted via this engine.
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///
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/// \returns true if the target options mis-match, false otherwise.
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static bool checkTargetOptions(const TargetOptions &TargetOpts,
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const TargetOptions &ExistingTargetOpts,
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DiagnosticsEngine *Diags) {
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#define CHECK_TARGET_OPT(Field, Name) \
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if (TargetOpts.Field != ExistingTargetOpts.Field) { \
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if (Diags) \
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Diags->Report(diag::err_pch_targetopt_mismatch) \
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<< Name << TargetOpts.Field << ExistingTargetOpts.Field; \
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return true; \
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}
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CHECK_TARGET_OPT(Triple, "target");
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CHECK_TARGET_OPT(CPU, "target CPU");
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CHECK_TARGET_OPT(ABI, "target ABI");
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CHECK_TARGET_OPT(CXXABI, "target C++ ABI");
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CHECK_TARGET_OPT(LinkerVersion, "target linker version");
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#undef CHECK_TARGET_OPT
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// Compare feature sets.
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SmallVector<StringRef, 4> ExistingFeatures(
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ExistingTargetOpts.FeaturesAsWritten.begin(),
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ExistingTargetOpts.FeaturesAsWritten.end());
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SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(),
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TargetOpts.FeaturesAsWritten.end());
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std::sort(ExistingFeatures.begin(), ExistingFeatures.end());
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std::sort(ReadFeatures.begin(), ReadFeatures.end());
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unsigned ExistingIdx = 0, ExistingN = ExistingFeatures.size();
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unsigned ReadIdx = 0, ReadN = ReadFeatures.size();
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while (ExistingIdx < ExistingN && ReadIdx < ReadN) {
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if (ExistingFeatures[ExistingIdx] == ReadFeatures[ReadIdx]) {
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++ExistingIdx;
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++ReadIdx;
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continue;
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}
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if (ReadFeatures[ReadIdx] < ExistingFeatures[ExistingIdx]) {
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if (Diags)
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Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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<< false << ReadFeatures[ReadIdx];
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return true;
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}
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if (Diags)
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Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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<< true << ExistingFeatures[ExistingIdx];
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return true;
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}
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if (ExistingIdx < ExistingN) {
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if (Diags)
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Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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<< true << ExistingFeatures[ExistingIdx];
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return true;
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}
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if (ReadIdx < ReadN) {
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if (Diags)
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Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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<< false << ReadFeatures[ReadIdx];
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return true;
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}
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return false;
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}
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bool
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PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts,
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bool Complain) {
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const LangOptions &ExistingLangOpts = PP.getLangOpts();
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return checkLanguageOptions(LangOpts, ExistingLangOpts,
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Complain? &Reader.Diags : 0);
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}
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bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts,
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bool Complain) {
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const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts();
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return checkTargetOptions(TargetOpts, ExistingTargetOpts,
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Complain? &Reader.Diags : 0);
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}
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namespace {
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typedef llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >
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MacroDefinitionsMap;
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}
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/// \brief Collect the macro definitions provided by the given preprocessor
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/// options.
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static void collectMacroDefinitions(const PreprocessorOptions &PPOpts,
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MacroDefinitionsMap &Macros,
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SmallVectorImpl<StringRef> *MacroNames = 0){
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for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) {
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StringRef Macro = PPOpts.Macros[I].first;
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bool IsUndef = PPOpts.Macros[I].second;
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std::pair<StringRef, StringRef> MacroPair = Macro.split('=');
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StringRef MacroName = MacroPair.first;
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StringRef MacroBody = MacroPair.second;
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// For an #undef'd macro, we only care about the name.
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if (IsUndef) {
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if (MacroNames && !Macros.count(MacroName))
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MacroNames->push_back(MacroName);
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Macros[MacroName] = std::make_pair("", true);
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continue;
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}
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// For a #define'd macro, figure out the actual definition.
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if (MacroName.size() == Macro.size())
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MacroBody = "1";
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else {
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// Note: GCC drops anything following an end-of-line character.
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StringRef::size_type End = MacroBody.find_first_of("\n\r");
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MacroBody = MacroBody.substr(0, End);
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}
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if (MacroNames && !Macros.count(MacroName))
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MacroNames->push_back(MacroName);
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Macros[MacroName] = std::make_pair(MacroBody, false);
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}
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}
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/// \brief Check the preprocessor options deserialized from the control block
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/// against the preprocessor options in an existing preprocessor.
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///
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/// \param Diags If non-null, produce diagnostics for any mismatches incurred.
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static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts,
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const PreprocessorOptions &ExistingPPOpts,
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DiagnosticsEngine *Diags,
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FileManager &FileMgr,
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std::string &SuggestedPredefines) {
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// Check macro definitions.
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MacroDefinitionsMap ASTFileMacros;
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collectMacroDefinitions(PPOpts, ASTFileMacros);
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MacroDefinitionsMap ExistingMacros;
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SmallVector<StringRef, 4> ExistingMacroNames;
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collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames);
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for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) {
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// Dig out the macro definition in the existing preprocessor options.
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StringRef MacroName = ExistingMacroNames[I];
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std::pair<StringRef, bool> Existing = ExistingMacros[MacroName];
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// Check whether we know anything about this macro name or not.
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llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >::iterator Known
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= ASTFileMacros.find(MacroName);
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if (Known == ASTFileMacros.end()) {
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// FIXME: Check whether this identifier was referenced anywhere in the
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// AST file. If so, we should reject the AST file. Unfortunately, this
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// information isn't in the control block. What shall we do about it?
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if (Existing.second) {
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SuggestedPredefines += "#undef ";
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SuggestedPredefines += MacroName.str();
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SuggestedPredefines += '\n';
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} else {
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SuggestedPredefines += "#define ";
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SuggestedPredefines += MacroName.str();
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SuggestedPredefines += ' ';
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SuggestedPredefines += Existing.first.str();
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SuggestedPredefines += '\n';
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}
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continue;
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}
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// If the macro was defined in one but undef'd in the other, we have a
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// conflict.
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if (Existing.second != Known->second.second) {
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if (Diags) {
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Diags->Report(diag::err_pch_macro_def_undef)
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<< MacroName << Known->second.second;
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}
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return true;
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}
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// If the macro was #undef'd in both, or if the macro bodies are identical,
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// it's fine.
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if (Existing.second || Existing.first == Known->second.first)
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continue;
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// The macro bodies differ; complain.
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if (Diags) {
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Diags->Report(diag::err_pch_macro_def_conflict)
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<< MacroName << Known->second.first << Existing.first;
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}
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return true;
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}
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// Check whether we're using predefines.
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if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines) {
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if (Diags) {
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Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines;
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}
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return true;
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}
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// Compute the #include and #include_macros lines we need.
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for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) {
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StringRef File = ExistingPPOpts.Includes[I];
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if (File == ExistingPPOpts.ImplicitPCHInclude)
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continue;
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if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File)
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!= PPOpts.Includes.end())
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continue;
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SuggestedPredefines += "#include \"";
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SuggestedPredefines +=
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HeaderSearch::NormalizeDashIncludePath(File, FileMgr);
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SuggestedPredefines += "\"\n";
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}
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for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) {
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StringRef File = ExistingPPOpts.MacroIncludes[I];
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if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(),
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File)
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!= PPOpts.MacroIncludes.end())
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continue;
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SuggestedPredefines += "#__include_macros \"";
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SuggestedPredefines +=
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HeaderSearch::NormalizeDashIncludePath(File, FileMgr);
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SuggestedPredefines += "\"\n##\n";
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}
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return false;
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}
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bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
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bool Complain,
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std::string &SuggestedPredefines) {
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const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts();
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return checkPreprocessorOptions(PPOpts, ExistingPPOpts,
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Complain? &Reader.Diags : 0,
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PP.getFileManager(),
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SuggestedPredefines);
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}
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void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI,
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unsigned ID) {
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PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID);
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++NumHeaderInfos;
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}
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void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) {
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PP.setCounterValue(Value);
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}
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//===----------------------------------------------------------------------===//
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// AST reader implementation
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//===----------------------------------------------------------------------===//
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void
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ASTReader::setDeserializationListener(ASTDeserializationListener *Listener) {
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DeserializationListener = Listener;
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}
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unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) {
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return serialization::ComputeHash(Sel);
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}
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std::pair<unsigned, unsigned>
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ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
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using namespace clang::io;
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unsigned KeyLen = ReadUnalignedLE16(d);
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unsigned DataLen = ReadUnalignedLE16(d);
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return std::make_pair(KeyLen, DataLen);
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}
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ASTSelectorLookupTrait::internal_key_type
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ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
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using namespace clang::io;
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SelectorTable &SelTable = Reader.getContext().Selectors;
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unsigned N = ReadUnalignedLE16(d);
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IdentifierInfo *FirstII
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= Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
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if (N == 0)
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return SelTable.getNullarySelector(FirstII);
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else if (N == 1)
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return SelTable.getUnarySelector(FirstII);
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SmallVector<IdentifierInfo *, 16> Args;
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Args.push_back(FirstII);
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for (unsigned I = 1; I != N; ++I)
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Args.push_back(Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)));
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return SelTable.getSelector(N, Args.data());
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}
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ASTSelectorLookupTrait::data_type
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ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
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unsigned DataLen) {
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using namespace clang::io;
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data_type Result;
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Result.ID = Reader.getGlobalSelectorID(F, ReadUnalignedLE32(d));
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unsigned NumInstanceMethods = ReadUnalignedLE16(d);
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unsigned NumFactoryMethods = ReadUnalignedLE16(d);
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// Load instance methods
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for (unsigned I = 0; I != NumInstanceMethods; ++I) {
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if (ObjCMethodDecl *Method
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= Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d)))
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Result.Instance.push_back(Method);
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}
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// Load factory methods
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for (unsigned I = 0; I != NumFactoryMethods; ++I) {
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if (ObjCMethodDecl *Method
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= Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d)))
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Result.Factory.push_back(Method);
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}
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return Result;
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}
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unsigned ASTIdentifierLookupTrait::ComputeHash(const internal_key_type& a) {
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return llvm::HashString(StringRef(a.first, a.second));
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}
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std::pair<unsigned, unsigned>
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ASTIdentifierLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
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using namespace clang::io;
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unsigned DataLen = ReadUnalignedLE16(d);
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unsigned KeyLen = ReadUnalignedLE16(d);
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return std::make_pair(KeyLen, DataLen);
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}
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std::pair<const char*, unsigned>
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ASTIdentifierLookupTrait::ReadKey(const unsigned char* d, unsigned n) {
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assert(n >= 2 && d[n-1] == '\0');
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return std::make_pair((const char*) d, n-1);
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}
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IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
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const unsigned char* d,
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unsigned DataLen) {
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using namespace clang::io;
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unsigned RawID = ReadUnalignedLE32(d);
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bool IsInteresting = RawID & 0x01;
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// Wipe out the "is interesting" bit.
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RawID = RawID >> 1;
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IdentID ID = Reader.getGlobalIdentifierID(F, RawID);
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if (!IsInteresting) {
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// For uninteresting identifiers, just build the IdentifierInfo
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// and associate it with the persistent ID.
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IdentifierInfo *II = KnownII;
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if (!II) {
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II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second));
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KnownII = II;
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}
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Reader.SetIdentifierInfo(ID, II);
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II->setIsFromAST();
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Reader.markIdentifierUpToDate(II);
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return II;
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}
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unsigned ObjCOrBuiltinID = ReadUnalignedLE16(d);
|
|
unsigned Bits = ReadUnalignedLE16(d);
|
|
bool CPlusPlusOperatorKeyword = Bits & 0x01;
|
|
Bits >>= 1;
|
|
bool HasRevertedTokenIDToIdentifier = Bits & 0x01;
|
|
Bits >>= 1;
|
|
bool Poisoned = Bits & 0x01;
|
|
Bits >>= 1;
|
|
bool ExtensionToken = Bits & 0x01;
|
|
Bits >>= 1;
|
|
bool hadMacroDefinition = Bits & 0x01;
|
|
Bits >>= 1;
|
|
|
|
assert(Bits == 0 && "Extra bits in the identifier?");
|
|
DataLen -= 8;
|
|
|
|
// Build the IdentifierInfo itself and link the identifier ID with
|
|
// the new IdentifierInfo.
|
|
IdentifierInfo *II = KnownII;
|
|
if (!II) {
|
|
II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second));
|
|
KnownII = II;
|
|
}
|
|
Reader.markIdentifierUpToDate(II);
|
|
II->setIsFromAST();
|
|
|
|
// Set or check the various bits in the IdentifierInfo structure.
|
|
// Token IDs are read-only.
|
|
if (HasRevertedTokenIDToIdentifier)
|
|
II->RevertTokenIDToIdentifier();
|
|
II->setObjCOrBuiltinID(ObjCOrBuiltinID);
|
|
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) {
|
|
SmallVector<MacroID, 4> MacroIDs;
|
|
while (uint32_t LocalID = ReadUnalignedLE32(d)) {
|
|
MacroIDs.push_back(Reader.getGlobalMacroID(F, LocalID));
|
|
DataLen -= 4;
|
|
}
|
|
DataLen -= 4;
|
|
Reader.setIdentifierIsMacro(II, MacroIDs);
|
|
}
|
|
|
|
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, ReadUnalignedLE32(d)));
|
|
Reader.SetGloballyVisibleDecls(II, DeclIDs);
|
|
}
|
|
|
|
return II;
|
|
}
|
|
|
|
unsigned
|
|
ASTDeclContextNameLookupTrait::ComputeHash(const DeclNameKey &Key) const {
|
|
llvm::FoldingSetNodeID ID;
|
|
ID.AddInteger(Key.Kind);
|
|
|
|
switch (Key.Kind) {
|
|
case DeclarationName::Identifier:
|
|
case DeclarationName::CXXLiteralOperatorName:
|
|
ID.AddString(((IdentifierInfo*)Key.Data)->getName());
|
|
break;
|
|
case DeclarationName::ObjCZeroArgSelector:
|
|
case DeclarationName::ObjCOneArgSelector:
|
|
case DeclarationName::ObjCMultiArgSelector:
|
|
ID.AddInteger(serialization::ComputeHash(Selector(Key.Data)));
|
|
break;
|
|
case DeclarationName::CXXOperatorName:
|
|
ID.AddInteger((OverloadedOperatorKind)Key.Data);
|
|
break;
|
|
case DeclarationName::CXXConstructorName:
|
|
case DeclarationName::CXXDestructorName:
|
|
case DeclarationName::CXXConversionFunctionName:
|
|
case DeclarationName::CXXUsingDirective:
|
|
break;
|
|
}
|
|
|
|
return ID.ComputeHash();
|
|
}
|
|
|
|
ASTDeclContextNameLookupTrait::internal_key_type
|
|
ASTDeclContextNameLookupTrait::GetInternalKey(
|
|
const external_key_type& Name) const {
|
|
DeclNameKey Key;
|
|
Key.Kind = Name.getNameKind();
|
|
switch (Name.getNameKind()) {
|
|
case DeclarationName::Identifier:
|
|
Key.Data = (uint64_t)Name.getAsIdentifierInfo();
|
|
break;
|
|
case DeclarationName::ObjCZeroArgSelector:
|
|
case DeclarationName::ObjCOneArgSelector:
|
|
case DeclarationName::ObjCMultiArgSelector:
|
|
Key.Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr();
|
|
break;
|
|
case DeclarationName::CXXOperatorName:
|
|
Key.Data = Name.getCXXOverloadedOperator();
|
|
break;
|
|
case DeclarationName::CXXLiteralOperatorName:
|
|
Key.Data = (uint64_t)Name.getCXXLiteralIdentifier();
|
|
break;
|
|
case DeclarationName::CXXConstructorName:
|
|
case DeclarationName::CXXDestructorName:
|
|
case DeclarationName::CXXConversionFunctionName:
|
|
case DeclarationName::CXXUsingDirective:
|
|
Key.Data = 0;
|
|
break;
|
|
}
|
|
|
|
return Key;
|
|
}
|
|
|
|
std::pair<unsigned, unsigned>
|
|
ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
|
|
using namespace clang::io;
|
|
unsigned KeyLen = ReadUnalignedLE16(d);
|
|
unsigned DataLen = ReadUnalignedLE16(d);
|
|
return std::make_pair(KeyLen, DataLen);
|
|
}
|
|
|
|
ASTDeclContextNameLookupTrait::internal_key_type
|
|
ASTDeclContextNameLookupTrait::ReadKey(const unsigned char* d, unsigned) {
|
|
using namespace clang::io;
|
|
|
|
DeclNameKey Key;
|
|
Key.Kind = (DeclarationName::NameKind)*d++;
|
|
switch (Key.Kind) {
|
|
case DeclarationName::Identifier:
|
|
Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
|
|
break;
|
|
case DeclarationName::ObjCZeroArgSelector:
|
|
case DeclarationName::ObjCOneArgSelector:
|
|
case DeclarationName::ObjCMultiArgSelector:
|
|
Key.Data =
|
|
(uint64_t)Reader.getLocalSelector(F, ReadUnalignedLE32(d))
|
|
.getAsOpaquePtr();
|
|
break;
|
|
case DeclarationName::CXXOperatorName:
|
|
Key.Data = *d++; // OverloadedOperatorKind
|
|
break;
|
|
case DeclarationName::CXXLiteralOperatorName:
|
|
Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
|
|
break;
|
|
case DeclarationName::CXXConstructorName:
|
|
case DeclarationName::CXXDestructorName:
|
|
case DeclarationName::CXXConversionFunctionName:
|
|
case DeclarationName::CXXUsingDirective:
|
|
Key.Data = 0;
|
|
break;
|
|
}
|
|
|
|
return Key;
|
|
}
|
|
|
|
ASTDeclContextNameLookupTrait::data_type
|
|
ASTDeclContextNameLookupTrait::ReadData(internal_key_type,
|
|
const unsigned char* d,
|
|
unsigned DataLen) {
|
|
using namespace clang::io;
|
|
unsigned NumDecls = ReadUnalignedLE16(d);
|
|
LE32DeclID *Start = (LE32DeclID *)d;
|
|
return std::make_pair(Start, Start + NumDecls);
|
|
}
|
|
|
|
bool ASTReader::ReadDeclContextStorage(ModuleFile &M,
|
|
llvm::BitstreamCursor &Cursor,
|
|
const std::pair<uint64_t, uint64_t> &Offsets,
|
|
DeclContextInfo &Info) {
|
|
SavedStreamPosition SavedPosition(Cursor);
|
|
// First the lexical decls.
|
|
if (Offsets.first != 0) {
|
|
Cursor.JumpToBit(Offsets.first);
|
|
|
|
RecordData Record;
|
|
const char *Blob;
|
|
unsigned BlobLen;
|
|
unsigned Code = Cursor.ReadCode();
|
|
unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
|
|
if (RecCode != DECL_CONTEXT_LEXICAL) {
|
|
Error("Expected lexical block");
|
|
return true;
|
|
}
|
|
|
|
Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair*>(Blob);
|
|
Info.NumLexicalDecls = BlobLen / sizeof(KindDeclIDPair);
|
|
}
|
|
|
|
// Now the lookup table.
|
|
if (Offsets.second != 0) {
|
|
Cursor.JumpToBit(Offsets.second);
|
|
|
|
RecordData Record;
|
|
const char *Blob;
|
|
unsigned BlobLen;
|
|
unsigned Code = Cursor.ReadCode();
|
|
unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
|
|
if (RecCode != DECL_CONTEXT_VISIBLE) {
|
|
Error("Expected visible lookup table block");
|
|
return true;
|
|
}
|
|
Info.NameLookupTableData
|
|
= ASTDeclContextNameLookupTable::Create(
|
|
(const unsigned char *)Blob + Record[0],
|
|
(const unsigned char *)Blob,
|
|
ASTDeclContextNameLookupTrait(*this, M));
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void ASTReader::Error(StringRef Msg) {
|
|
Error(diag::err_fe_pch_malformed, Msg);
|
|
}
|
|
|
|
void ASTReader::Error(unsigned DiagID,
|
|
StringRef Arg1, StringRef Arg2) {
|
|
if (Diags.isDiagnosticInFlight())
|
|
Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2);
|
|
else
|
|
Diag(DiagID) << Arg1 << Arg2;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Source Manager Deserialization
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// \brief Read the line table in the source manager block.
|
|
/// \returns true if there was an error.
|
|
bool ASTReader::ParseLineTable(ModuleFile &F,
|
|
SmallVectorImpl<uint64_t> &Record) {
|
|
unsigned Idx = 0;
|
|
LineTableInfo &LineTable = SourceMgr.getLineTable();
|
|
|
|
// Parse the file names
|
|
std::map<int, int> FileIDs;
|
|
for (int I = 0, N = Record[Idx++]; I != N; ++I) {
|
|
// Extract the file name
|
|
unsigned FilenameLen = Record[Idx++];
|
|
std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen);
|
|
Idx += FilenameLen;
|
|
MaybeAddSystemRootToFilename(F, Filename);
|
|
FileIDs[I] = LineTable.getLineTableFilenameID(Filename);
|
|
}
|
|
|
|
// 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 && "Numentries is 00000");
|
|
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;
|
|
}
|
|
|
|
/// \brief Read a source manager block
|
|
bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) {
|
|
using namespace SrcMgr;
|
|
|
|
llvm::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 (F.Stream.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
|
|
// Enter the source manager block.
|
|
if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) {
|
|
Error("malformed source manager block record in AST file");
|
|
return true;
|
|
}
|
|
|
|
RecordData Record;
|
|
while (true) {
|
|
unsigned Code = SLocEntryCursor.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK) {
|
|
if (SLocEntryCursor.ReadBlockEnd()) {
|
|
Error("error at end of Source Manager block in AST file");
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
// No known subblocks, always skip them.
|
|
SLocEntryCursor.ReadSubBlockID();
|
|
if (SLocEntryCursor.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
SLocEntryCursor.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
// Read a record.
|
|
const char *BlobStart;
|
|
unsigned BlobLen;
|
|
Record.clear();
|
|
switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// \brief 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;
|
|
}
|
|
|
|
ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second;
|
|
F->SLocEntryCursor.JumpToBit(F->SLocEntryOffsets[ID - F->SLocEntryBaseID]);
|
|
llvm::BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor;
|
|
unsigned BaseOffset = F->SLocEntryBaseOffset;
|
|
|
|
++NumSLocEntriesRead;
|
|
unsigned Code = SLocEntryCursor.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK ||
|
|
Code == llvm::bitc::ENTER_SUBBLOCK ||
|
|
Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Error("incorrectly-formatted source location entry in AST file");
|
|
return true;
|
|
}
|
|
|
|
RecordData Record;
|
|
const char *BlobStart;
|
|
unsigned BlobLen;
|
|
switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
|
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.getPointer();
|
|
bool OverriddenBuffer = IF.getInt();
|
|
|
|
if (!IF.getPointer())
|
|
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];
|
|
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();
|
|
|
|
const DeclID *FirstDecl = F->FileSortedDecls + Record[6];
|
|
unsigned NumFileDecls = Record[7];
|
|
if (NumFileDecls) {
|
|
assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?");
|
|
FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl,
|
|
NumFileDecls));
|
|
}
|
|
|
|
const SrcMgr::ContentCache *ContentCache
|
|
= SourceMgr.getOrCreateContentCache(File,
|
|
/*isSystemFile=*/FileCharacter != SrcMgr::C_User);
|
|
if (OverriddenBuffer && !ContentCache->BufferOverridden &&
|
|
ContentCache->ContentsEntry == ContentCache->OrigEntry) {
|
|
unsigned Code = SLocEntryCursor.ReadCode();
|
|
Record.clear();
|
|
unsigned RecCode
|
|
= SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
|
|
|
|
if (RecCode != SM_SLOC_BUFFER_BLOB) {
|
|
Error("AST record has invalid code");
|
|
return true;
|
|
}
|
|
|
|
llvm::MemoryBuffer *Buffer
|
|
= llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1),
|
|
File->getName());
|
|
SourceMgr.overrideFileContents(File, Buffer);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case SM_SLOC_BUFFER_ENTRY: {
|
|
const char *Name = BlobStart;
|
|
unsigned Offset = Record[0];
|
|
unsigned Code = SLocEntryCursor.ReadCode();
|
|
Record.clear();
|
|
unsigned RecCode
|
|
= SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
|
|
|
|
if (RecCode != SM_SLOC_BUFFER_BLOB) {
|
|
Error("AST record has invalid code");
|
|
return true;
|
|
}
|
|
|
|
llvm::MemoryBuffer *Buffer
|
|
= llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1),
|
|
Name);
|
|
SourceMgr.createFileIDForMemBuffer(Buffer, ID, BaseOffset + Offset);
|
|
break;
|
|
}
|
|
|
|
case SM_SLOC_EXPANSION_ENTRY: {
|
|
SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]);
|
|
SourceMgr.createExpansionLoc(SpellingLoc,
|
|
ReadSourceLocation(*F, Record[2]),
|
|
ReadSourceLocation(*F, Record[3]),
|
|
Record[4],
|
|
ID,
|
|
BaseOffset + Record[0]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// \brief 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. We assume that it is the first entry in the
|
|
// entry table. We can't ask the manager, because at the time of PCH loading
|
|
// the main file entry doesn't exist yet.
|
|
// The very first entry is the invalid instantiation loc, which takes up
|
|
// offsets 0 and 1.
|
|
return SourceLocation::getFromRawEncoding(2U);
|
|
}
|
|
//return F->Loaders[0]->FirstLoc;
|
|
return F->ImportedBy[0]->FirstLoc;
|
|
}
|
|
|
|
/// ReadBlockAbbrevs - 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(llvm::BitstreamCursor &Cursor,
|
|
unsigned BlockID) {
|
|
if (Cursor.EnterSubBlock(BlockID)) {
|
|
Error("malformed block record in AST file");
|
|
return Failure;
|
|
}
|
|
|
|
while (true) {
|
|
uint64_t Offset = Cursor.GetCurrentBitNo();
|
|
unsigned Code = Cursor.ReadCode();
|
|
|
|
// We expect all abbrevs to be at the start of the block.
|
|
if (Code != llvm::bitc::DEFINE_ABBREV) {
|
|
Cursor.JumpToBit(Offset);
|
|
return false;
|
|
}
|
|
Cursor.ReadAbbrevRecord();
|
|
}
|
|
}
|
|
|
|
void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset,
|
|
MacroInfo *Hint) {
|
|
llvm::BitstreamCursor &Stream = F.MacroCursor;
|
|
|
|
// Keep track of where we are in the stream, then jump back there
|
|
// after reading this macro.
|
|
SavedStreamPosition SavedPosition(Stream);
|
|
|
|
Stream.JumpToBit(Offset);
|
|
RecordData Record;
|
|
SmallVector<IdentifierInfo*, 16> MacroArgs;
|
|
MacroInfo *Macro = 0;
|
|
|
|
// RAII object to add the loaded macro information once we're done
|
|
// adding tokens.
|
|
struct AddLoadedMacroInfoRAII {
|
|
Preprocessor &PP;
|
|
MacroInfo *Hint;
|
|
MacroInfo *MI;
|
|
IdentifierInfo *II;
|
|
|
|
AddLoadedMacroInfoRAII(Preprocessor &PP, MacroInfo *Hint)
|
|
: PP(PP), Hint(Hint), MI(), II() { }
|
|
~AddLoadedMacroInfoRAII( ) {
|
|
if (MI) {
|
|
// Finally, install the macro.
|
|
PP.addLoadedMacroInfo(II, MI, Hint);
|
|
}
|
|
}
|
|
} AddLoadedMacroInfo(PP, Hint);
|
|
|
|
while (true) {
|
|
unsigned Code = Stream.ReadCode();
|
|
switch (Code) {
|
|
case llvm::bitc::END_BLOCK:
|
|
return;
|
|
|
|
case llvm::bitc::ENTER_SUBBLOCK:
|
|
// No known subblocks, always skip them.
|
|
Stream.ReadSubBlockID();
|
|
if (Stream.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return;
|
|
}
|
|
continue;
|
|
|
|
case llvm::bitc::DEFINE_ABBREV:
|
|
Stream.ReadAbbrevRecord();
|
|
continue;
|
|
default: break;
|
|
}
|
|
|
|
// Read a record.
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
Record.clear();
|
|
PreprocessorRecordTypes RecType =
|
|
(PreprocessorRecordTypes)Stream.ReadRecord(Code, Record, BlobStart,
|
|
BlobLen);
|
|
switch (RecType) {
|
|
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;
|
|
|
|
IdentifierInfo *II = getLocalIdentifier(F, Record[0]);
|
|
if (II == 0) {
|
|
Error("macro must have a name in AST file");
|
|
return;
|
|
}
|
|
|
|
unsigned GlobalID = getGlobalMacroID(F, Record[1]);
|
|
|
|
// If this macro has already been loaded, don't do so again.
|
|
if (MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS])
|
|
return;
|
|
|
|
SubmoduleID GlobalSubmoduleID = getGlobalSubmoduleID(F, Record[2]);
|
|
unsigned NextIndex = 3;
|
|
SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex);
|
|
MacroInfo *MI = PP.AllocateMacroInfo(Loc);
|
|
|
|
// Record this macro.
|
|
MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS] = MI;
|
|
|
|
SourceLocation UndefLoc = ReadSourceLocation(F, Record, NextIndex);
|
|
if (UndefLoc.isValid())
|
|
MI->setUndefLoc(UndefLoc);
|
|
|
|
MI->setIsUsed(Record[NextIndex++]);
|
|
MI->setIsFromAST();
|
|
|
|
bool IsPublic = Record[NextIndex++];
|
|
MI->setVisibility(IsPublic, ReadSourceLocation(F, Record, NextIndex));
|
|
|
|
if (RecType == PP_MACRO_FUNCTION_LIKE) {
|
|
// Decode function-like macro info.
|
|
bool isC99VarArgs = Record[NextIndex++];
|
|
bool isGNUVarArgs = Record[NextIndex++];
|
|
MacroArgs.clear();
|
|
unsigned NumArgs = Record[NextIndex++];
|
|
for (unsigned i = 0; i != NumArgs; ++i)
|
|
MacroArgs.push_back(getLocalIdentifier(F, Record[NextIndex++]));
|
|
|
|
// Install function-like macro info.
|
|
MI->setIsFunctionLike();
|
|
if (isC99VarArgs) MI->setIsC99Varargs();
|
|
if (isGNUVarArgs) MI->setIsGNUVarargs();
|
|
MI->setArgumentList(MacroArgs.data(), MacroArgs.size(),
|
|
PP.getPreprocessorAllocator());
|
|
}
|
|
|
|
if (DeserializationListener)
|
|
DeserializationListener->MacroRead(GlobalID, MI);
|
|
|
|
// If an update record marked this as undefined, do so now.
|
|
// FIXME: Only if the submodule this update came from is visible?
|
|
MacroUpdatesMap::iterator Update = MacroUpdates.find(GlobalID);
|
|
if (Update != MacroUpdates.end()) {
|
|
if (MI->getUndefLoc().isInvalid()) {
|
|
for (unsigned I = 0, N = Update->second.size(); I != N; ++I) {
|
|
bool Hidden = false;
|
|
if (unsigned SubmoduleID = Update->second[I].first) {
|
|
if (Module *Owner = getSubmodule(SubmoduleID)) {
|
|
if (Owner->NameVisibility == Module::Hidden) {
|
|
// Note that this #undef is hidden.
|
|
Hidden = true;
|
|
|
|
// Record this hiding for later.
|
|
HiddenNamesMap[Owner].push_back(
|
|
HiddenName(II, MI, Update->second[I].second.UndefLoc));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!Hidden) {
|
|
MI->setUndefLoc(Update->second[I].second.UndefLoc);
|
|
if (PPMutationListener *Listener = PP.getPPMutationListener())
|
|
Listener->UndefinedMacro(MI);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
MacroUpdates.erase(Update);
|
|
}
|
|
|
|
// Determine whether this macro definition is visible.
|
|
bool Hidden = !MI->isPublic();
|
|
if (!Hidden && GlobalSubmoduleID) {
|
|
if (Module *Owner = getSubmodule(GlobalSubmoduleID)) {
|
|
if (Owner->NameVisibility == Module::Hidden) {
|
|
// The owning module is not visible, and this macro definition
|
|
// should not be, either.
|
|
Hidden = true;
|
|
|
|
// Note that this macro definition was hidden because its owning
|
|
// module is not yet visible.
|
|
HiddenNamesMap[Owner].push_back(HiddenName(II, MI));
|
|
}
|
|
}
|
|
}
|
|
MI->setHidden(Hidden);
|
|
|
|
// Make sure we install the macro once we're done.
|
|
AddLoadedMacroInfo.MI = MI;
|
|
AddLoadedMacroInfo.II = II;
|
|
|
|
// 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();
|
|
PPRec.RegisterMacroDefinition(Macro,
|
|
PPRec.getPPEntityID(GlobalID-1, /*isLoaded=*/true));
|
|
}
|
|
|
|
++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 == 0) break;
|
|
|
|
Token Tok;
|
|
Tok.startToken();
|
|
Tok.setLocation(ReadSourceLocation(F, Record[0]));
|
|
Tok.setLength(Record[1]);
|
|
if (IdentifierInfo *II = getLocalIdentifier(F, Record[2]))
|
|
Tok.setIdentifierInfo(II);
|
|
Tok.setKind((tok::TokenKind)Record[3]);
|
|
Tok.setFlag((Token::TokenFlags)Record[4]);
|
|
Macro->AddTokenToBody(Tok);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
PreprocessedEntityID
|
|
ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M, unsigned LocalID) const {
|
|
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(const char *path) {
|
|
return llvm::HashString(llvm::sys::path::filename(path));
|
|
}
|
|
|
|
HeaderFileInfoTrait::internal_key_type
|
|
HeaderFileInfoTrait::GetInternalKey(const char *path) { return path; }
|
|
|
|
bool HeaderFileInfoTrait::EqualKey(internal_key_type a, internal_key_type b) {
|
|
if (strcmp(a, b) == 0)
|
|
return true;
|
|
|
|
if (llvm::sys::path::filename(a) != llvm::sys::path::filename(b))
|
|
return false;
|
|
|
|
// Determine whether the actual files are equivalent.
|
|
bool Result = false;
|
|
if (llvm::sys::fs::equivalent(a, b, Result))
|
|
return false;
|
|
|
|
return Result;
|
|
}
|
|
|
|
std::pair<unsigned, unsigned>
|
|
HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) {
|
|
unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d);
|
|
unsigned DataLen = (unsigned) *d++;
|
|
return std::make_pair(KeyLen + 1, DataLen);
|
|
}
|
|
|
|
HeaderFileInfoTrait::data_type
|
|
HeaderFileInfoTrait::ReadData(const internal_key_type, const unsigned char *d,
|
|
unsigned DataLen) {
|
|
const unsigned char *End = d + DataLen;
|
|
using namespace clang::io;
|
|
HeaderFileInfo HFI;
|
|
unsigned Flags = *d++;
|
|
HFI.isImport = (Flags >> 5) & 0x01;
|
|
HFI.isPragmaOnce = (Flags >> 4) & 0x01;
|
|
HFI.DirInfo = (Flags >> 2) & 0x03;
|
|
HFI.Resolved = (Flags >> 1) & 0x01;
|
|
HFI.IndexHeaderMapHeader = Flags & 0x01;
|
|
HFI.NumIncludes = ReadUnalignedLE16(d);
|
|
HFI.ControllingMacroID = Reader.getGlobalIdentifierID(M,
|
|
ReadUnalignedLE32(d));
|
|
if (unsigned FrameworkOffset = ReadUnalignedLE32(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 && "Wrong data length in HeaderFileInfo deserialization");
|
|
(void)End;
|
|
|
|
// This HeaderFileInfo was externally loaded.
|
|
HFI.External = true;
|
|
return HFI;
|
|
}
|
|
|
|
void ASTReader::setIdentifierIsMacro(IdentifierInfo *II, ArrayRef<MacroID> IDs){
|
|
II->setHadMacroDefinition(true);
|
|
assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard");
|
|
PendingMacroIDs[II].append(IDs.begin(), IDs.end());
|
|
}
|
|
|
|
void ASTReader::ReadDefinedMacros() {
|
|
// Note that we are loading defined macros.
|
|
Deserializing Macros(this);
|
|
|
|
for (ModuleReverseIterator I = ModuleMgr.rbegin(),
|
|
E = ModuleMgr.rend(); I != E; ++I) {
|
|
llvm::BitstreamCursor &MacroCursor = (*I)->MacroCursor;
|
|
|
|
// If there was no preprocessor block, skip this file.
|
|
if (!MacroCursor.getBitStreamReader())
|
|
continue;
|
|
|
|
llvm::BitstreamCursor Cursor = MacroCursor;
|
|
Cursor.JumpToBit((*I)->MacroStartOffset);
|
|
|
|
RecordData Record;
|
|
while (true) {
|
|
unsigned Code = Cursor.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK)
|
|
break;
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
// No known subblocks, always skip them.
|
|
Cursor.ReadSubBlockID();
|
|
if (Cursor.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Cursor.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
// Read a record.
|
|
const char *BlobStart;
|
|
unsigned BlobLen;
|
|
Record.clear();
|
|
switch (Cursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
|
default: // Default behavior: ignore.
|
|
break;
|
|
|
|
case PP_MACRO_OBJECT_LIKE:
|
|
case PP_MACRO_FUNCTION_LIKE:
|
|
getLocalIdentifier(**I, Record[0]);
|
|
break;
|
|
|
|
case PP_TOKEN:
|
|
// Ignore tokens.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
/// \brief Visitor class used to look up identifirs in an AST file.
|
|
class IdentifierLookupVisitor {
|
|
StringRef Name;
|
|
unsigned PriorGeneration;
|
|
IdentifierInfo *Found;
|
|
public:
|
|
IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration)
|
|
: Name(Name), PriorGeneration(PriorGeneration), Found() { }
|
|
|
|
static bool visit(ModuleFile &M, void *UserData) {
|
|
IdentifierLookupVisitor *This
|
|
= static_cast<IdentifierLookupVisitor *>(UserData);
|
|
|
|
// If we've already searched this module file, skip it now.
|
|
if (M.Generation <= This->PriorGeneration)
|
|
return true;
|
|
|
|
ASTIdentifierLookupTable *IdTable
|
|
= (ASTIdentifierLookupTable *)M.IdentifierLookupTable;
|
|
if (!IdTable)
|
|
return false;
|
|
|
|
ASTIdentifierLookupTrait Trait(IdTable->getInfoObj().getReader(),
|
|
M, This->Found);
|
|
|
|
std::pair<const char*, unsigned> Key(This->Name.begin(),
|
|
This->Name.size());
|
|
ASTIdentifierLookupTable::iterator Pos = IdTable->find(Key, &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.
|
|
This->Found = *Pos;
|
|
return true;
|
|
}
|
|
|
|
// \brief Retrieve the identifier info found within the module
|
|
// files.
|
|
IdentifierInfo *getIdentifierInfo() const { return Found; }
|
|
};
|
|
}
|
|
|
|
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];
|
|
|
|
IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration);
|
|
ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor);
|
|
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] = CurrentGeneration;
|
|
}
|
|
|
|
llvm::PointerIntPair<const FileEntry *, 1, bool>
|
|
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].getPointer())
|
|
return F.InputFilesLoaded[ID-1];
|
|
|
|
// Go find this input file.
|
|
llvm::BitstreamCursor &Cursor = F.InputFilesCursor;
|
|
SavedStreamPosition SavedPosition(Cursor);
|
|
Cursor.JumpToBit(F.InputFileOffsets[ID-1]);
|
|
|
|
unsigned Code = Cursor.ReadCode();
|
|
RecordData Record;
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
switch ((InputFileRecordTypes)Cursor.ReadRecord(Code, Record,
|
|
&BlobStart, &BlobLen)) {
|
|
case INPUT_FILE: {
|
|
unsigned StoredID = Record[0];
|
|
assert(ID == StoredID && "Bogus stored ID or offset");
|
|
(void)StoredID;
|
|
off_t StoredSize = (off_t)Record[1];
|
|
time_t StoredTime = (time_t)Record[2];
|
|
bool Overridden = (bool)Record[3];
|
|
|
|
// Get the file entry for this input file.
|
|
StringRef OrigFilename(BlobStart, BlobLen);
|
|
std::string Filename = OrigFilename;
|
|
MaybeAddSystemRootToFilename(F, Filename);
|
|
const FileEntry *File
|
|
= Overridden? FileMgr.getVirtualFile(Filename, StoredSize, StoredTime)
|
|
: FileMgr.getFile(Filename, /*OpenFile=*/false);
|
|
|
|
// If we didn't find the file, resolve it relative to the
|
|
// original directory from which this AST file was created.
|
|
if (File == 0 && !F.OriginalDir.empty() && !CurrentDir.empty() &&
|
|
F.OriginalDir != CurrentDir) {
|
|
std::string Resolved = resolveFileRelativeToOriginalDir(Filename,
|
|
F.OriginalDir,
|
|
CurrentDir);
|
|
if (!Resolved.empty())
|
|
File = FileMgr.getFile(Resolved);
|
|
}
|
|
|
|
// For an overridden file, create a virtual file with the stored
|
|
// size/timestamp.
|
|
if (Overridden && File == 0) {
|
|
File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime);
|
|
}
|
|
|
|
if (File == 0) {
|
|
if (Complain) {
|
|
std::string ErrorStr = "could not find file '";
|
|
ErrorStr += Filename;
|
|
ErrorStr += "' referenced by AST file";
|
|
Error(ErrorStr.c_str());
|
|
}
|
|
return InputFile();
|
|
}
|
|
|
|
// Note that we've loaded this input file.
|
|
F.InputFilesLoaded[ID-1] = InputFile(File, Overridden);
|
|
|
|
// Check if there was a request to override the contents of the file
|
|
// that was part of the precompiled header. Overridding such a file
|
|
// can lead to problems when lexing using the source locations from the
|
|
// PCH.
|
|
SourceManager &SM = getSourceManager();
|
|
if (!Overridden && SM.isFileOverridden(File)) {
|
|
Error(diag::err_fe_pch_file_overridden, Filename);
|
|
// After emitting the diagnostic, recover by disabling the override so
|
|
// that the original file will be used.
|
|
SM.disableFileContentsOverride(File);
|
|
// The FileEntry is a virtual file entry with the size of the contents
|
|
// that would override the original contents. Set it to the original's
|
|
// size/time.
|
|
FileMgr.modifyFileEntry(const_cast<FileEntry*>(File),
|
|
StoredSize, StoredTime);
|
|
}
|
|
|
|
// For an overridden file, there is nothing to validate.
|
|
if (Overridden)
|
|
return InputFile(File, Overridden);
|
|
|
|
// The stat info from the FileEntry came from the cached stat
|
|
// info of the PCH, so we cannot trust it.
|
|
struct stat StatBuf;
|
|
if (::stat(File->getName(), &StatBuf) != 0) {
|
|
StatBuf.st_size = File->getSize();
|
|
StatBuf.st_mtime = File->getModificationTime();
|
|
}
|
|
|
|
if ((StoredSize != StatBuf.st_size
|
|
#if !defined(LLVM_ON_WIN32)
|
|
// In our regression testing, the Windows file system seems to
|
|
// have inconsistent modification times that sometimes
|
|
// erroneously trigger this error-handling path.
|
|
|| StoredTime != StatBuf.st_mtime
|
|
#endif
|
|
)) {
|
|
if (Complain)
|
|
Error(diag::err_fe_pch_file_modified, Filename);
|
|
|
|
return InputFile();
|
|
}
|
|
|
|
return InputFile(File, Overridden);
|
|
}
|
|
}
|
|
|
|
return InputFile();
|
|
}
|
|
|
|
const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) {
|
|
ModuleFile &M = ModuleMgr.getPrimaryModule();
|
|
std::string Filename = filenameStrRef;
|
|
MaybeAddSystemRootToFilename(M, Filename);
|
|
const FileEntry *File = FileMgr.getFile(Filename);
|
|
if (File == 0 && !M.OriginalDir.empty() && !CurrentDir.empty() &&
|
|
M.OriginalDir != CurrentDir) {
|
|
std::string resolved = resolveFileRelativeToOriginalDir(Filename,
|
|
M.OriginalDir,
|
|
CurrentDir);
|
|
if (!resolved.empty())
|
|
File = FileMgr.getFile(resolved);
|
|
}
|
|
|
|
return File;
|
|
}
|
|
|
|
/// \brief If we are loading a relocatable PCH file, and the filename is
|
|
/// not an absolute path, add the system root to the beginning of the file
|
|
/// name.
|
|
void ASTReader::MaybeAddSystemRootToFilename(ModuleFile &M,
|
|
std::string &Filename) {
|
|
// If this is not a relocatable PCH file, there's nothing to do.
|
|
if (!M.RelocatablePCH)
|
|
return;
|
|
|
|
if (Filename.empty() || llvm::sys::path::is_absolute(Filename))
|
|
return;
|
|
|
|
if (isysroot.empty()) {
|
|
// If no system root was given, default to '/'
|
|
Filename.insert(Filename.begin(), '/');
|
|
return;
|
|
}
|
|
|
|
unsigned Length = isysroot.size();
|
|
if (isysroot[Length - 1] != '/')
|
|
Filename.insert(Filename.begin(), '/');
|
|
|
|
Filename.insert(Filename.begin(), isysroot.begin(), isysroot.end());
|
|
}
|
|
|
|
ASTReader::ASTReadResult
|
|
ASTReader::ReadControlBlock(ModuleFile &F,
|
|
llvm::SmallVectorImpl<ModuleFile *> &Loaded,
|
|
unsigned ClientLoadCapabilities) {
|
|
llvm::BitstreamCursor &Stream = F.Stream;
|
|
|
|
if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
|
|
Error("malformed block record in AST file");
|
|
return Failure;
|
|
}
|
|
|
|
// Read all of the records and blocks in the control block.
|
|
RecordData Record;
|
|
while (!Stream.AtEndOfStream()) {
|
|
unsigned Code = Stream.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK) {
|
|
if (Stream.ReadBlockEnd()) {
|
|
Error("error at end of control block in AST file");
|
|
return Failure;
|
|
}
|
|
|
|
// Validate all of the input files.
|
|
if (!DisableValidation) {
|
|
bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0;
|
|
for (unsigned I = 0, N = Record[0]; I < N; ++I)
|
|
if (!getInputFile(F, I+1, Complain).getPointer())
|
|
return OutOfDate;
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
switch (Stream.ReadSubBlockID()) {
|
|
case INPUT_FILES_BLOCK_ID:
|
|
F.InputFilesCursor = Stream;
|
|
if (Stream.SkipBlock() || // Skip with the main cursor
|
|
// Read the abbreviations
|
|
ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) {
|
|
Error("malformed block record in AST file");
|
|
return Failure;
|
|
}
|
|
continue;
|
|
|
|
default:
|
|
if (!Stream.SkipBlock())
|
|
continue;
|
|
break;
|
|
}
|
|
|
|
Error("malformed block record in AST file");
|
|
return Failure;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Stream.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
// Read and process a record.
|
|
Record.clear();
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
switch ((ControlRecordTypes)Stream.ReadRecord(Code, Record,
|
|
&BlobStart, &BlobLen)) {
|
|
case METADATA: {
|
|
if (Record[0] != VERSION_MAJOR && !DisableValidation) {
|
|
if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
|
|
Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old
|
|
: diag::warn_pch_version_too_new);
|
|
return VersionMismatch;
|
|
}
|
|
|
|
bool hasErrors = Record[5];
|
|
if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) {
|
|
Diag(diag::err_pch_with_compiler_errors);
|
|
return HadErrors;
|
|
}
|
|
|
|
F.RelocatablePCH = Record[4];
|
|
|
|
const std::string &CurBranch = getClangFullRepositoryVersion();
|
|
StringRef ASTBranch(BlobStart, BlobLen);
|
|
if (StringRef(CurBranch) != ASTBranch && !DisableValidation) {
|
|
if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
|
|
Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch;
|
|
return VersionMismatch;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case IMPORTS: {
|
|
// 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++];
|
|
unsigned Length = Record[Idx++];
|
|
SmallString<128> ImportedFile(Record.begin() + Idx,
|
|
Record.begin() + Idx + Length);
|
|
Idx += Length;
|
|
|
|
// Load the AST file.
|
|
switch(ReadASTCore(ImportedFile, ImportedKind, &F, Loaded,
|
|
ClientLoadCapabilities)) {
|
|
case Failure: return Failure;
|
|
// If we have to ignore the dependency, we'll have to ignore this too.
|
|
case OutOfDate: return OutOfDate;
|
|
case VersionMismatch: return VersionMismatch;
|
|
case ConfigurationMismatch: return ConfigurationMismatch;
|
|
case HadErrors: return HadErrors;
|
|
case Success: break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case LANGUAGE_OPTIONS: {
|
|
bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
|
|
if (Listener && &F == *ModuleMgr.begin() &&
|
|
ParseLanguageOptions(Record, Complain, *Listener) &&
|
|
!DisableValidation)
|
|
return ConfigurationMismatch;
|
|
break;
|
|
}
|
|
|
|
case TARGET_OPTIONS: {
|
|
bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
|
if (Listener && &F == *ModuleMgr.begin() &&
|
|
ParseTargetOptions(Record, Complain, *Listener) &&
|
|
!DisableValidation)
|
|
return ConfigurationMismatch;
|
|
break;
|
|
}
|
|
|
|
case DIAGNOSTIC_OPTIONS: {
|
|
bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
|
if (Listener && &F == *ModuleMgr.begin() &&
|
|
ParseDiagnosticOptions(Record, Complain, *Listener) &&
|
|
!DisableValidation)
|
|
return ConfigurationMismatch;
|
|
break;
|
|
}
|
|
|
|
case FILE_SYSTEM_OPTIONS: {
|
|
bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
|
if (Listener && &F == *ModuleMgr.begin() &&
|
|
ParseFileSystemOptions(Record, Complain, *Listener) &&
|
|
!DisableValidation)
|
|
return ConfigurationMismatch;
|
|
break;
|
|
}
|
|
|
|
case HEADER_SEARCH_OPTIONS: {
|
|
bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
|
if (Listener && &F == *ModuleMgr.begin() &&
|
|
ParseHeaderSearchOptions(Record, Complain, *Listener) &&
|
|
!DisableValidation)
|
|
return ConfigurationMismatch;
|
|
break;
|
|
}
|
|
|
|
case PREPROCESSOR_OPTIONS: {
|
|
bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
|
if (Listener && &F == *ModuleMgr.begin() &&
|
|
ParsePreprocessorOptions(Record, Complain, *Listener,
|
|
SuggestedPredefines) &&
|
|
!DisableValidation)
|
|
return ConfigurationMismatch;
|
|
break;
|
|
}
|
|
|
|
case ORIGINAL_FILE:
|
|
F.OriginalSourceFileID = FileID::get(Record[0]);
|
|
F.ActualOriginalSourceFileName.assign(BlobStart, BlobLen);
|
|
F.OriginalSourceFileName = F.ActualOriginalSourceFileName;
|
|
MaybeAddSystemRootToFilename(F, F.OriginalSourceFileName);
|
|
break;
|
|
|
|
case ORIGINAL_PCH_DIR:
|
|
F.OriginalDir.assign(BlobStart, BlobLen);
|
|
break;
|
|
|
|
case INPUT_FILE_OFFSETS:
|
|
F.InputFileOffsets = (const uint32_t *)BlobStart;
|
|
F.InputFilesLoaded.resize(Record[0]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
Error("premature end of bitstream in AST file");
|
|
return Failure;
|
|
}
|
|
|
|
bool ASTReader::ReadASTBlock(ModuleFile &F) {
|
|
llvm::BitstreamCursor &Stream = F.Stream;
|
|
|
|
if (Stream.EnterSubBlock(AST_BLOCK_ID)) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
|
|
// Read all of the records and blocks for the AST file.
|
|
RecordData Record;
|
|
while (!Stream.AtEndOfStream()) {
|
|
unsigned Code = Stream.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK) {
|
|
if (Stream.ReadBlockEnd()) {
|
|
Error("error at end of module block in AST file");
|
|
return true;
|
|
}
|
|
|
|
DeclContext *DC = Context.getTranslationUnitDecl();
|
|
if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage())
|
|
DC->setMustBuildLookupTable();
|
|
|
|
return false;
|
|
}
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
switch (Stream.ReadSubBlockID()) {
|
|
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 (Stream.SkipBlock() || // Skip with the main cursor.
|
|
// Read the abbrevs.
|
|
ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
case DECL_UPDATES_BLOCK_ID:
|
|
if (Stream.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
case PREPROCESSOR_BLOCK_ID:
|
|
F.MacroCursor = Stream;
|
|
if (!PP.getExternalSource())
|
|
PP.setExternalSource(this);
|
|
|
|
if (Stream.SkipBlock() ||
|
|
ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo();
|
|
break;
|
|
|
|
case PREPROCESSOR_DETAIL_BLOCK_ID:
|
|
F.PreprocessorDetailCursor = Stream;
|
|
if (Stream.SkipBlock() ||
|
|
ReadBlockAbbrevs(F.PreprocessorDetailCursor,
|
|
PREPROCESSOR_DETAIL_BLOCK_ID)) {
|
|
Error("malformed preprocessor detail record in AST file");
|
|
return true;
|
|
}
|
|
F.PreprocessorDetailStartOffset
|
|
= F.PreprocessorDetailCursor.GetCurrentBitNo();
|
|
|
|
if (!PP.getPreprocessingRecord())
|
|
PP.createPreprocessingRecord(/*RecordConditionalDirectives=*/false);
|
|
if (!PP.getPreprocessingRecord()->getExternalSource())
|
|
PP.getPreprocessingRecord()->SetExternalSource(*this);
|
|
break;
|
|
|
|
case SOURCE_MANAGER_BLOCK_ID:
|
|
if (ReadSourceManagerBlock(F))
|
|
return true;
|
|
break;
|
|
|
|
case SUBMODULE_BLOCK_ID:
|
|
if (ReadSubmoduleBlock(F))
|
|
return true;
|
|
break;
|
|
|
|
case COMMENTS_BLOCK_ID: {
|
|
llvm::BitstreamCursor C = Stream;
|
|
if (Stream.SkipBlock() ||
|
|
ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) {
|
|
Error("malformed comments block in AST file");
|
|
return true;
|
|
}
|
|
CommentsCursors.push_back(std::make_pair(C, &F));
|
|
break;
|
|
}
|
|
|
|
default:
|
|
if (!Stream.SkipBlock())
|
|
break;
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Stream.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
// Read and process a record.
|
|
Record.clear();
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
switch ((ASTRecordTypes)Stream.ReadRecord(Code, Record,
|
|
&BlobStart, &BlobLen)) {
|
|
default: // Default behavior: ignore.
|
|
break;
|
|
|
|
case TYPE_OFFSET: {
|
|
if (F.LocalNumTypes != 0) {
|
|
Error("duplicate TYPE_OFFSET record in AST file");
|
|
return true;
|
|
}
|
|
F.TypeOffsets = (const uint32_t *)BlobStart;
|
|
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 true;
|
|
}
|
|
F.DeclOffsets = (const DeclOffset *)BlobStart;
|
|
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 = Context.getTranslationUnitDecl();
|
|
DeclContextInfo &Info = F.DeclContextInfos[TU];
|
|
Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair *>(BlobStart);
|
|
Info.NumLexicalDecls
|
|
= static_cast<unsigned int>(BlobLen / sizeof(KindDeclIDPair));
|
|
TU->setHasExternalLexicalStorage(true);
|
|
break;
|
|
}
|
|
|
|
case UPDATE_VISIBLE: {
|
|
unsigned Idx = 0;
|
|
serialization::DeclID ID = ReadDeclID(F, Record, Idx);
|
|
ASTDeclContextNameLookupTable *Table =
|
|
ASTDeclContextNameLookupTable::Create(
|
|
(const unsigned char *)BlobStart + Record[Idx++],
|
|
(const unsigned char *)BlobStart,
|
|
ASTDeclContextNameLookupTrait(*this, F));
|
|
if (ID == PREDEF_DECL_TRANSLATION_UNIT_ID) { // Is it the TU?
|
|
DeclContext *TU = Context.getTranslationUnitDecl();
|
|
F.DeclContextInfos[TU].NameLookupTableData = Table;
|
|
TU->setHasExternalVisibleStorage(true);
|
|
} else
|
|
PendingVisibleUpdates[ID].push_back(std::make_pair(Table, &F));
|
|
break;
|
|
}
|
|
|
|
case IDENTIFIER_TABLE:
|
|
F.IdentifierTableData = BlobStart;
|
|
if (Record[0]) {
|
|
F.IdentifierLookupTable
|
|
= ASTIdentifierLookupTable::Create(
|
|
(const unsigned char *)F.IdentifierTableData + Record[0],
|
|
(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 true;
|
|
}
|
|
F.IdentifierOffsets = (const uint32_t *)BlobStart;
|
|
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 EXTERNAL_DEFINITIONS:
|
|
for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
|
ExternalDefinitions.push_back(getGlobalDeclID(F, Record[I]));
|
|
break;
|
|
|
|
case SPECIAL_TYPES:
|
|
for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
|
SpecialTypes.push_back(getGlobalTypeID(F, Record[I]));
|
|
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 true;
|
|
}
|
|
|
|
// 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 LOCALLY_SCOPED_EXTERNAL_DECLS:
|
|
for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
|
LocallyScopedExternalDecls.push_back(getGlobalDeclID(F, Record[I]));
|
|
break;
|
|
|
|
case SELECTOR_OFFSETS: {
|
|
F.SelectorOffsets = (const uint32_t *)BlobStart;
|
|
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 *)BlobStart;
|
|
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_COUNTER_VALUE:
|
|
if (!Record.empty() && Listener)
|
|
Listener->ReadCounter(F, Record[0]);
|
|
break;
|
|
|
|
case FILE_SORTED_DECLS:
|
|
F.FileSortedDecls = (const DeclID *)BlobStart;
|
|
F.NumFileSortedDecls = Record[0];
|
|
break;
|
|
|
|
case SOURCE_LOCATION_OFFSETS: {
|
|
F.SLocEntryOffsets = (const uint32_t *)BlobStart;
|
|
F.LocalNumSLocEntries = Record[0];
|
|
unsigned SLocSpaceSize = Record[1];
|
|
llvm::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) =
|
|
SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries,
|
|
SLocSpaceSize);
|
|
// 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.insert(std::make_pair(0U, 0));
|
|
// This module. Base was 2 when being compiled.
|
|
F.SLocRemap.insert(std::make_pair(2U,
|
|
static_cast<int>(F.SLocEntryBaseOffset - 2)));
|
|
|
|
TotalNumSLocEntries += F.LocalNumSLocEntries;
|
|
break;
|
|
}
|
|
|
|
case MODULE_OFFSET_MAP: {
|
|
// Additional remapping information.
|
|
const unsigned char *Data = (const unsigned char*)BlobStart;
|
|
const unsigned char *DataEnd = Data + BlobLen;
|
|
|
|
// Continuous range maps we may be updating in our module.
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder SLocRemap(F.SLocRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder
|
|
IdentifierRemap(F.IdentifierRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder
|
|
MacroRemap(F.MacroRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder
|
|
PreprocessedEntityRemap(F.PreprocessedEntityRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder
|
|
SubmoduleRemap(F.SubmoduleRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder
|
|
SelectorRemap(F.SelectorRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder DeclRemap(F.DeclRemap);
|
|
ContinuousRangeMap<uint32_t, int, 2>::Builder TypeRemap(F.TypeRemap);
|
|
|
|
while(Data < DataEnd) {
|
|
uint16_t Len = io::ReadUnalignedLE16(Data);
|
|
StringRef Name = StringRef((const char*)Data, Len);
|
|
Data += Len;
|
|
ModuleFile *OM = ModuleMgr.lookup(Name);
|
|
if (!OM) {
|
|
Error("SourceLocation remap refers to unknown module");
|
|
return true;
|
|
}
|
|
|
|
uint32_t SLocOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t IdentifierIDOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t MacroIDOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t PreprocessedEntityIDOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t SubmoduleIDOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t SelectorIDOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t DeclIDOffset = io::ReadUnalignedLE32(Data);
|
|
uint32_t TypeIndexOffset = io::ReadUnalignedLE32(Data);
|
|
|
|
// Source location offset is mapped to OM->SLocEntryBaseOffset.
|
|
SLocRemap.insert(std::make_pair(SLocOffset,
|
|
static_cast<int>(OM->SLocEntryBaseOffset - SLocOffset)));
|
|
IdentifierRemap.insert(
|
|
std::make_pair(IdentifierIDOffset,
|
|
OM->BaseIdentifierID - IdentifierIDOffset));
|
|
MacroRemap.insert(std::make_pair(MacroIDOffset,
|
|
OM->BaseMacroID - MacroIDOffset));
|
|
PreprocessedEntityRemap.insert(
|
|
std::make_pair(PreprocessedEntityIDOffset,
|
|
OM->BasePreprocessedEntityID - PreprocessedEntityIDOffset));
|
|
SubmoduleRemap.insert(std::make_pair(SubmoduleIDOffset,
|
|
OM->BaseSubmoduleID - SubmoduleIDOffset));
|
|
SelectorRemap.insert(std::make_pair(SelectorIDOffset,
|
|
OM->BaseSelectorID - SelectorIDOffset));
|
|
DeclRemap.insert(std::make_pair(DeclIDOffset,
|
|
OM->BaseDeclID - DeclIDOffset));
|
|
|
|
TypeRemap.insert(std::make_pair(TypeIndexOffset,
|
|
OM->BaseTypeIndex - TypeIndexOffset));
|
|
|
|
// Global -> local mappings.
|
|
F.GlobalToLocalDeclIDs[OM] = DeclIDOffset;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SOURCE_MANAGER_LINE_TABLE:
|
|
if (ParseLineTable(F, Record))
|
|
return true;
|
|
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 true;
|
|
}
|
|
|
|
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 true;
|
|
}
|
|
|
|
// 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 DYNAMIC_CLASSES:
|
|
for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
|
DynamicClasses.push_back(getGlobalDeclID(F, Record[I]));
|
|
break;
|
|
|
|
case PENDING_IMPLICIT_INSTANTIATIONS:
|
|
if (PendingInstantiations.size() % 2 != 0) {
|
|
Error("Invalid existing PendingInstantiations");
|
|
return true;
|
|
}
|
|
|
|
if (Record.size() % 2 != 0) {
|
|
Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block");
|
|
return true;
|
|
}
|
|
|
|
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:
|
|
// Later tables overwrite earlier ones.
|
|
// FIXME: Modules will have some trouble with this.
|
|
SemaDeclRefs.clear();
|
|
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 *)BlobStart;
|
|
assert(BlobLen % sizeof(PPEntityOffset) == 0);
|
|
F.NumPreprocessedEntities = BlobLen / sizeof(PPEntityOffset);
|
|
|
|
unsigned LocalBasePreprocessedEntityID = Record[0];
|
|
|
|
unsigned StartingID;
|
|
if (!PP.getPreprocessingRecord())
|
|
PP.createPreprocessingRecord(/*RecordConditionalDirectives=*/false);
|
|
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 DECL_UPDATE_OFFSETS: {
|
|
if (Record.size() % 2 != 0) {
|
|
Error("invalid DECL_UPDATE_OFFSETS block in AST file");
|
|
return true;
|
|
}
|
|
for (unsigned I = 0, N = Record.size(); I != N; I += 2)
|
|
DeclUpdateOffsets[getGlobalDeclID(F, Record[I])]
|
|
.push_back(std::make_pair(&F, Record[I+1]));
|
|
break;
|
|
}
|
|
|
|
case DECL_REPLACEMENTS: {
|
|
if (Record.size() % 3 != 0) {
|
|
Error("invalid DECL_REPLACEMENTS block in AST file");
|
|
return true;
|
|
}
|
|
for (unsigned I = 0, N = Record.size(); I != N; I += 3)
|
|
ReplacedDecls[getGlobalDeclID(F, Record[I])]
|
|
= ReplacedDeclInfo(&F, Record[I+1], Record[I+2]);
|
|
break;
|
|
}
|
|
|
|
case OBJC_CATEGORIES_MAP: {
|
|
if (F.LocalNumObjCCategoriesInMap != 0) {
|
|
Error("duplicate OBJC_CATEGORIES_MAP record in AST file");
|
|
return true;
|
|
}
|
|
|
|
F.LocalNumObjCCategoriesInMap = Record[0];
|
|
F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)BlobStart;
|
|
break;
|
|
}
|
|
|
|
case OBJC_CATEGORIES:
|
|
F.ObjCCategories.swap(Record);
|
|
break;
|
|
|
|
case CXX_BASE_SPECIFIER_OFFSETS: {
|
|
if (F.LocalNumCXXBaseSpecifiers != 0) {
|
|
Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file");
|
|
return true;
|
|
}
|
|
|
|
F.LocalNumCXXBaseSpecifiers = Record[0];
|
|
F.CXXBaseSpecifiersOffsets = (const uint32_t *)BlobStart;
|
|
NumCXXBaseSpecifiersLoaded += F.LocalNumCXXBaseSpecifiers;
|
|
break;
|
|
}
|
|
|
|
case DIAG_PRAGMA_MAPPINGS:
|
|
if (F.PragmaDiagMappings.empty())
|
|
F.PragmaDiagMappings.swap(Record);
|
|
else
|
|
F.PragmaDiagMappings.insert(F.PragmaDiagMappings.end(),
|
|
Record.begin(), Record.end());
|
|
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 = BlobStart;
|
|
F.LocalNumHeaderFileInfos = Record[1];
|
|
F.HeaderFileFrameworkStrings = BlobStart + Record[2];
|
|
if (Record[0]) {
|
|
F.HeaderFileInfoTable
|
|
= HeaderFileInfoLookupTable::Create(
|
|
(const unsigned char *)F.HeaderFileInfoTableData + Record[0],
|
|
(const unsigned char *)F.HeaderFileInfoTableData,
|
|
HeaderFileInfoTrait(*this, F,
|
|
&PP.getHeaderSearchInfo(),
|
|
BlobStart + 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:
|
|
// Later tables overwrite earlier ones.
|
|
OpenCLExtensions.swap(Record);
|
|
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 IMPORTED_MODULES: {
|
|
if (F.Kind != MK_Module) {
|
|
// 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; ++I) {
|
|
if (unsigned GlobalID = getGlobalSubmoduleID(F, Record[I]))
|
|
ImportedModules.push_back(GlobalID);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case LOCAL_REDECLARATIONS: {
|
|
F.RedeclarationChains.swap(Record);
|
|
break;
|
|
}
|
|
|
|
case LOCAL_REDECLARATIONS_MAP: {
|
|
if (F.LocalNumRedeclarationsInMap != 0) {
|
|
Error("duplicate LOCAL_REDECLARATIONS_MAP record in AST file");
|
|
return true;
|
|
}
|
|
|
|
F.LocalNumRedeclarationsInMap = Record[0];
|
|
F.RedeclarationsMap = (const LocalRedeclarationsInfo *)BlobStart;
|
|
break;
|
|
}
|
|
|
|
case MERGED_DECLARATIONS: {
|
|
for (unsigned Idx = 0; Idx < Record.size(); /* increment in loop */) {
|
|
GlobalDeclID CanonID = getGlobalDeclID(F, Record[Idx++]);
|
|
SmallVectorImpl<GlobalDeclID> &Decls = StoredMergedDecls[CanonID];
|
|
for (unsigned N = Record[Idx++]; N > 0; --N)
|
|
Decls.push_back(getGlobalDeclID(F, Record[Idx++]));
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MACRO_OFFSET: {
|
|
if (F.LocalNumMacros != 0) {
|
|
Error("duplicate MACRO_OFFSET record in AST file");
|
|
return true;
|
|
}
|
|
F.MacroOffsets = (const uint32_t *)BlobStart;
|
|
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 MACRO_UPDATES: {
|
|
for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
|
|
MacroID ID = getGlobalMacroID(F, Record[I++]);
|
|
if (I == N)
|
|
break;
|
|
|
|
SourceLocation UndefLoc = ReadSourceLocation(F, Record, I);
|
|
SubmoduleID SubmoduleID = getGlobalSubmoduleID(F, Record[I++]);;
|
|
MacroUpdate Update;
|
|
Update.UndefLoc = UndefLoc;
|
|
MacroUpdates[ID].push_back(std::make_pair(SubmoduleID, Update));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
Error("premature end of bitstream in AST file");
|
|
return true;
|
|
}
|
|
|
|
void ASTReader::makeNamesVisible(const HiddenNames &Names) {
|
|
for (unsigned I = 0, N = Names.size(); I != N; ++I) {
|
|
switch (Names[I].getKind()) {
|
|
case HiddenName::Declaration:
|
|
Names[I].getDecl()->Hidden = false;
|
|
break;
|
|
|
|
case HiddenName::MacroVisibility: {
|
|
std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro();
|
|
Macro.second->setHidden(!Macro.second->isPublic());
|
|
if (Macro.second->isDefined()) {
|
|
PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case HiddenName::MacroUndef: {
|
|
std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro();
|
|
if (Macro.second->isDefined()) {
|
|
Macro.second->setUndefLoc(Names[I].getMacroUndefLoc());
|
|
if (PPMutationListener *Listener = PP.getPPMutationListener())
|
|
Listener->UndefinedMacro(Macro.second);
|
|
PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ASTReader::makeModuleVisible(Module *Mod,
|
|
Module::NameVisibilityKind NameVisibility) {
|
|
llvm::SmallPtrSet<Module *, 4> Visited;
|
|
llvm::SmallVector<Module *, 4> Stack;
|
|
Stack.push_back(Mod);
|
|
while (!Stack.empty()) {
|
|
Mod = Stack.back();
|
|
Stack.pop_back();
|
|
|
|
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()) {
|
|
makeNamesVisible(Hidden->second);
|
|
HiddenNamesMap.erase(Hidden);
|
|
}
|
|
|
|
// Push any non-explicit submodules onto the stack to be marked as
|
|
// visible.
|
|
for (Module::submodule_iterator Sub = Mod->submodule_begin(),
|
|
SubEnd = Mod->submodule_end();
|
|
Sub != SubEnd; ++Sub) {
|
|
if (!(*Sub)->IsExplicit && Visited.insert(*Sub))
|
|
Stack.push_back(*Sub);
|
|
}
|
|
|
|
// Push any exported modules onto the stack to be marked as visible.
|
|
bool AnyWildcard = false;
|
|
bool UnrestrictedWildcard = false;
|
|
llvm::SmallVector<Module *, 4> WildcardRestrictions;
|
|
for (unsigned I = 0, N = Mod->Exports.size(); I != N; ++I) {
|
|
Module *Exported = Mod->Exports[I].getPointer();
|
|
if (!Mod->Exports[I].getInt()) {
|
|
// Export a named module directly; no wildcards involved.
|
|
if (Visited.insert(Exported))
|
|
Stack.push_back(Exported);
|
|
|
|
continue;
|
|
}
|
|
|
|
// Wildcard export: export all of the imported modules that match
|
|
// the given pattern.
|
|
AnyWildcard = true;
|
|
if (UnrestrictedWildcard)
|
|
continue;
|
|
|
|
if (Module *Restriction = Mod->Exports[I].getPointer())
|
|
WildcardRestrictions.push_back(Restriction);
|
|
else {
|
|
WildcardRestrictions.clear();
|
|
UnrestrictedWildcard = true;
|
|
}
|
|
}
|
|
|
|
// If there were any wildcards, push any imported modules that were
|
|
// re-exported by the wildcard restriction.
|
|
if (!AnyWildcard)
|
|
continue;
|
|
|
|
for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) {
|
|
Module *Imported = Mod->Imports[I];
|
|
if (!Visited.insert(Imported))
|
|
continue;
|
|
|
|
bool Acceptable = UnrestrictedWildcard;
|
|
if (!Acceptable) {
|
|
// Check whether this module meets one of the restrictions.
|
|
for (unsigned R = 0, NR = WildcardRestrictions.size(); R != NR; ++R) {
|
|
Module *Restriction = WildcardRestrictions[R];
|
|
if (Imported == Restriction || Imported->isSubModuleOf(Restriction)) {
|
|
Acceptable = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!Acceptable)
|
|
continue;
|
|
|
|
Stack.push_back(Imported);
|
|
}
|
|
}
|
|
}
|
|
|
|
ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName,
|
|
ModuleKind Type,
|
|
unsigned ClientLoadCapabilities) {
|
|
// Bump the generation number.
|
|
unsigned PreviousGeneration = CurrentGeneration++;
|
|
|
|
// Load the core of the AST files.
|
|
llvm::SmallVector<ModuleFile *, 4> Loaded;
|
|
switch(ReadASTCore(FileName, Type, /*ImportedBy=*/0, Loaded,
|
|
ClientLoadCapabilities)) {
|
|
case Failure: return Failure;
|
|
case OutOfDate: return OutOfDate;
|
|
case VersionMismatch: return VersionMismatch;
|
|
case ConfigurationMismatch: return ConfigurationMismatch;
|
|
case HadErrors: return HadErrors;
|
|
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 (llvm::SmallVectorImpl<ModuleFile *>::iterator M = Loaded.begin(),
|
|
MEnd = Loaded.end();
|
|
M != MEnd; ++M) {
|
|
ModuleFile &F = **M;
|
|
|
|
// Read the AST block.
|
|
if (ReadASTBlock(F))
|
|
return Failure;
|
|
|
|
// 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);
|
|
}
|
|
}
|
|
|
|
// 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 (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(),
|
|
IdEnd = PP.getIdentifierTable().end();
|
|
Id != IdEnd; ++Id)
|
|
Id->second->setOutOfDate(true);
|
|
|
|
// Resolve any unresolved module exports.
|
|
for (unsigned I = 0, N = UnresolvedModuleImportExports.size(); I != N; ++I) {
|
|
UnresolvedModuleImportExport &Unresolved = UnresolvedModuleImportExports[I];
|
|
SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID);
|
|
Module *ResolvedMod = getSubmodule(GlobalID);
|
|
|
|
if (Unresolved.IsImport) {
|
|
if (ResolvedMod)
|
|
Unresolved.Mod->Imports.push_back(ResolvedMod);
|
|
continue;
|
|
}
|
|
|
|
if (ResolvedMod || Unresolved.IsWildcard)
|
|
Unresolved.Mod->Exports.push_back(
|
|
Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard));
|
|
}
|
|
UnresolvedModuleImportExports.clear();
|
|
|
|
InitializeContext();
|
|
|
|
if (DeserializationListener)
|
|
DeserializationListener->ReaderInitialized(this);
|
|
|
|
ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule();
|
|
if (!PrimaryModule.OriginalSourceFileID.isInvalid()) {
|
|
PrimaryModule.OriginalSourceFileID
|
|
= FileID::get(PrimaryModule.SLocEntryBaseID
|
|
+ PrimaryModule.OriginalSourceFileID.getOpaqueValue() - 1);
|
|
|
|
// 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.
|
|
for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) {
|
|
loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(),
|
|
ObjCClassesLoaded[I],
|
|
PreviousGeneration);
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
ASTReader::ASTReadResult
|
|
ASTReader::ReadASTCore(StringRef FileName,
|
|
ModuleKind Type,
|
|
ModuleFile *ImportedBy,
|
|
llvm::SmallVectorImpl<ModuleFile *> &Loaded,
|
|
unsigned ClientLoadCapabilities) {
|
|
ModuleFile *M;
|
|
bool NewModule;
|
|
std::string ErrorStr;
|
|
llvm::tie(M, NewModule) = ModuleMgr.addModule(FileName, Type, ImportedBy,
|
|
CurrentGeneration, ErrorStr);
|
|
|
|
if (!M) {
|
|
// We couldn't load the module.
|
|
std::string Msg = "Unable to load module \"" + FileName.str() + "\": "
|
|
+ ErrorStr;
|
|
Error(Msg);
|
|
return Failure;
|
|
}
|
|
|
|
if (!NewModule) {
|
|
// We've already loaded this module.
|
|
return Success;
|
|
}
|
|
|
|
// FIXME: This seems rather a hack. Should CurrentDir be part of the
|
|
// module?
|
|
if (FileName != "-") {
|
|
CurrentDir = llvm::sys::path::parent_path(FileName);
|
|
if (CurrentDir.empty()) CurrentDir = ".";
|
|
}
|
|
|
|
ModuleFile &F = *M;
|
|
llvm::BitstreamCursor &Stream = F.Stream;
|
|
Stream.init(F.StreamFile);
|
|
F.SizeInBits = F.Buffer->getBufferSize() * 8;
|
|
|
|
// Sniff for the signature.
|
|
if (Stream.Read(8) != 'C' ||
|
|
Stream.Read(8) != 'P' ||
|
|
Stream.Read(8) != 'C' ||
|
|
Stream.Read(8) != 'H') {
|
|
Diag(diag::err_not_a_pch_file) << FileName;
|
|
return Failure;
|
|
}
|
|
|
|
while (!Stream.AtEndOfStream()) {
|
|
unsigned Code = Stream.ReadCode();
|
|
|
|
if (Code != llvm::bitc::ENTER_SUBBLOCK) {
|
|
Error("invalid record at top-level of AST file");
|
|
return Failure;
|
|
}
|
|
|
|
unsigned BlockID = Stream.ReadSubBlockID();
|
|
|
|
// We only know the control subblock ID.
|
|
switch (BlockID) {
|
|
case llvm::bitc::BLOCKINFO_BLOCK_ID:
|
|
if (Stream.ReadBlockInfoBlock()) {
|
|
Error("malformed BlockInfoBlock in AST file");
|
|
return Failure;
|
|
}
|
|
break;
|
|
case CONTROL_BLOCK_ID:
|
|
switch (ReadControlBlock(F, Loaded, ClientLoadCapabilities)) {
|
|
case Success:
|
|
break;
|
|
|
|
case Failure: return Failure;
|
|
case OutOfDate: return OutOfDate;
|
|
case VersionMismatch: return VersionMismatch;
|
|
case ConfigurationMismatch: return ConfigurationMismatch;
|
|
case HadErrors: return HadErrors;
|
|
}
|
|
break;
|
|
case AST_BLOCK_ID:
|
|
// Record that we've loaded this module.
|
|
Loaded.push_back(M);
|
|
return Success;
|
|
|
|
default:
|
|
if (Stream.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return Failure;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
void ASTReader::InitializeContext() {
|
|
// If there's a listener, notify them that we "read" the translation unit.
|
|
if (DeserializationListener)
|
|
DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID,
|
|
Context.getTranslationUnitDecl());
|
|
|
|
// Make sure we load the declaration update records for the translation unit,
|
|
// if there are any.
|
|
loadDeclUpdateRecords(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.
|
|
for (unsigned I = 0, N = ImportedModules.size(); I != N; ++I) {
|
|
if (Module *Imported = getSubmodule(ImportedModules[I]))
|
|
makeModuleVisible(Imported, Module::AllVisible);
|
|
}
|
|
ImportedModules.clear();
|
|
}
|
|
|
|
void ASTReader::finalizeForWriting() {
|
|
for (HiddenNamesMapType::iterator Hidden = HiddenNamesMap.begin(),
|
|
HiddenEnd = HiddenNamesMap.end();
|
|
Hidden != HiddenEnd; ++Hidden) {
|
|
makeNamesVisible(Hidden->second);
|
|
}
|
|
HiddenNamesMap.clear();
|
|
}
|
|
|
|
/// \brief 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,
|
|
DiagnosticsEngine &Diags) {
|
|
// Open the AST file.
|
|
std::string ErrStr;
|
|
OwningPtr<llvm::MemoryBuffer> Buffer;
|
|
Buffer.reset(FileMgr.getBufferForFile(ASTFileName, &ErrStr));
|
|
if (!Buffer) {
|
|
Diags.Report(diag::err_fe_unable_to_read_pch_file) << ASTFileName << ErrStr;
|
|
return std::string();
|
|
}
|
|
|
|
// Initialize the stream
|
|
llvm::BitstreamReader StreamFile;
|
|
llvm::BitstreamCursor Stream;
|
|
StreamFile.init((const unsigned char *)Buffer->getBufferStart(),
|
|
(const unsigned char *)Buffer->getBufferEnd());
|
|
Stream.init(StreamFile);
|
|
|
|
// Sniff for the signature.
|
|
if (Stream.Read(8) != 'C' ||
|
|
Stream.Read(8) != 'P' ||
|
|
Stream.Read(8) != 'C' ||
|
|
Stream.Read(8) != 'H') {
|
|
Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName;
|
|
return std::string();
|
|
}
|
|
|
|
RecordData Record;
|
|
while (!Stream.AtEndOfStream()) {
|
|
unsigned Code = Stream.ReadCode();
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
unsigned BlockID = Stream.ReadSubBlockID();
|
|
|
|
// We only know the AST subblock ID.
|
|
switch (BlockID) {
|
|
case CONTROL_BLOCK_ID:
|
|
if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
|
|
Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
|
|
return std::string();
|
|
}
|
|
break;
|
|
|
|
default:
|
|
if (Stream.SkipBlock()) {
|
|
Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
|
|
return std::string();
|
|
}
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::END_BLOCK) {
|
|
if (Stream.ReadBlockEnd()) {
|
|
Diags.Report(diag::err_fe_pch_error_at_end_block) << ASTFileName;
|
|
return std::string();
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Stream.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
Record.clear();
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen) == ORIGINAL_FILE)
|
|
return std::string(BlobStart, BlobLen);
|
|
}
|
|
|
|
return std::string();
|
|
}
|
|
|
|
namespace {
|
|
class SimplePCHValidator : public ASTReaderListener {
|
|
const LangOptions &ExistingLangOpts;
|
|
const TargetOptions &ExistingTargetOpts;
|
|
const PreprocessorOptions &ExistingPPOpts;
|
|
FileManager &FileMgr;
|
|
|
|
public:
|
|
SimplePCHValidator(const LangOptions &ExistingLangOpts,
|
|
const TargetOptions &ExistingTargetOpts,
|
|
const PreprocessorOptions &ExistingPPOpts,
|
|
FileManager &FileMgr)
|
|
: ExistingLangOpts(ExistingLangOpts),
|
|
ExistingTargetOpts(ExistingTargetOpts),
|
|
ExistingPPOpts(ExistingPPOpts),
|
|
FileMgr(FileMgr)
|
|
{
|
|
}
|
|
|
|
virtual bool ReadLanguageOptions(const LangOptions &LangOpts,
|
|
bool Complain) {
|
|
return checkLanguageOptions(ExistingLangOpts, LangOpts, 0);
|
|
}
|
|
virtual bool ReadTargetOptions(const TargetOptions &TargetOpts,
|
|
bool Complain) {
|
|
return checkTargetOptions(ExistingTargetOpts, TargetOpts, 0);
|
|
}
|
|
virtual bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
|
|
bool Complain,
|
|
std::string &SuggestedPredefines) {
|
|
return checkPreprocessorOptions(ExistingPPOpts, PPOpts, 0, FileMgr,
|
|
SuggestedPredefines);
|
|
}
|
|
};
|
|
}
|
|
|
|
bool ASTReader::isAcceptableASTFile(StringRef Filename,
|
|
FileManager &FileMgr,
|
|
const LangOptions &LangOpts,
|
|
const TargetOptions &TargetOpts,
|
|
const PreprocessorOptions &PPOpts) {
|
|
// Open the AST file.
|
|
std::string ErrStr;
|
|
OwningPtr<llvm::MemoryBuffer> Buffer;
|
|
Buffer.reset(FileMgr.getBufferForFile(Filename, &ErrStr));
|
|
if (!Buffer) {
|
|
return false;
|
|
}
|
|
|
|
// Initialize the stream
|
|
llvm::BitstreamReader StreamFile;
|
|
llvm::BitstreamCursor Stream;
|
|
StreamFile.init((const unsigned char *)Buffer->getBufferStart(),
|
|
(const unsigned char *)Buffer->getBufferEnd());
|
|
Stream.init(StreamFile);
|
|
|
|
// Sniff for the signature.
|
|
if (Stream.Read(8) != 'C' ||
|
|
Stream.Read(8) != 'P' ||
|
|
Stream.Read(8) != 'C' ||
|
|
Stream.Read(8) != 'H') {
|
|
return false;
|
|
}
|
|
|
|
SimplePCHValidator Validator(LangOpts, TargetOpts, PPOpts, FileMgr);
|
|
RecordData Record;
|
|
bool InControlBlock = false;
|
|
while (!Stream.AtEndOfStream()) {
|
|
unsigned Code = Stream.ReadCode();
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
unsigned BlockID = Stream.ReadSubBlockID();
|
|
|
|
// We only know the control subblock ID.
|
|
switch (BlockID) {
|
|
case CONTROL_BLOCK_ID:
|
|
if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
|
|
return false;
|
|
} else {
|
|
InControlBlock = true;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
if (Stream.SkipBlock())
|
|
return false;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::END_BLOCK) {
|
|
if (Stream.ReadBlockEnd()) {
|
|
return false;
|
|
}
|
|
InControlBlock = false;
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Stream.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
Record.clear();
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
unsigned RecCode = Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen);
|
|
if (InControlBlock) {
|
|
switch ((ControlRecordTypes)RecCode) {
|
|
case METADATA: {
|
|
if (Record[0] != VERSION_MAJOR) {
|
|
return false;
|
|
}
|
|
|
|
const std::string &CurBranch = getClangFullRepositoryVersion();
|
|
StringRef ASTBranch(BlobStart, BlobLen);
|
|
if (StringRef(CurBranch) != ASTBranch)
|
|
return false;
|
|
|
|
break;
|
|
}
|
|
case LANGUAGE_OPTIONS:
|
|
if (ParseLanguageOptions(Record, false, Validator))
|
|
return false;
|
|
break;
|
|
|
|
case TARGET_OPTIONS:
|
|
if (ParseTargetOptions(Record, false, Validator))
|
|
return false;
|
|
break;
|
|
|
|
case DIAGNOSTIC_OPTIONS:
|
|
if (ParseDiagnosticOptions(Record, false, Validator))
|
|
return false;
|
|
break;
|
|
|
|
case FILE_SYSTEM_OPTIONS:
|
|
if (ParseFileSystemOptions(Record, false, Validator))
|
|
return false;
|
|
break;
|
|
|
|
case HEADER_SEARCH_OPTIONS:
|
|
if (ParseHeaderSearchOptions(Record, false, Validator))
|
|
return false;
|
|
break;
|
|
|
|
case PREPROCESSOR_OPTIONS: {
|
|
std::string IgnoredSuggestedPredefines;
|
|
if (ParsePreprocessorOptions(Record, false, Validator,
|
|
IgnoredSuggestedPredefines))
|
|
return false;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
// No other validation to perform.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ASTReader::ReadSubmoduleBlock(ModuleFile &F) {
|
|
// Enter the submodule block.
|
|
if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) {
|
|
Error("malformed submodule block record in AST file");
|
|
return true;
|
|
}
|
|
|
|
ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap();
|
|
bool First = true;
|
|
Module *CurrentModule = 0;
|
|
RecordData Record;
|
|
while (true) {
|
|
unsigned Code = F.Stream.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK) {
|
|
if (F.Stream.ReadBlockEnd()) {
|
|
Error("error at end of submodule block in AST file");
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
// No known subblocks, always skip them.
|
|
F.Stream.ReadSubBlockID();
|
|
if (F.Stream.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
F.Stream.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
// Read a record.
|
|
const char *BlobStart;
|
|
unsigned BlobLen;
|
|
Record.clear();
|
|
switch (F.Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
|
default: // Default behavior: ignore.
|
|
break;
|
|
|
|
case SUBMODULE_DEFINITION: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (Record.size() < 7) {
|
|
Error("malformed module definition");
|
|
return true;
|
|
}
|
|
|
|
StringRef Name(BlobStart, BlobLen);
|
|
SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[0]);
|
|
SubmoduleID Parent = getGlobalSubmoduleID(F, Record[1]);
|
|
bool IsFramework = Record[2];
|
|
bool IsExplicit = Record[3];
|
|
bool IsSystem = Record[4];
|
|
bool InferSubmodules = Record[5];
|
|
bool InferExplicitSubmodules = Record[6];
|
|
bool InferExportWildcard = Record[7];
|
|
|
|
Module *ParentModule = 0;
|
|
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;
|
|
SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS;
|
|
if (GlobalIndex >= SubmodulesLoaded.size() ||
|
|
SubmodulesLoaded[GlobalIndex]) {
|
|
Error("too many submodules");
|
|
return true;
|
|
}
|
|
|
|
CurrentModule->setASTFile(F.File);
|
|
CurrentModule->IsFromModuleFile = true;
|
|
CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem;
|
|
CurrentModule->InferSubmodules = InferSubmodules;
|
|
CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules;
|
|
CurrentModule->InferExportWildcard = InferExportWildcard;
|
|
if (DeserializationListener)
|
|
DeserializationListener->ModuleRead(GlobalID, CurrentModule);
|
|
|
|
SubmodulesLoaded[GlobalIndex] = CurrentModule;
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_UMBRELLA_HEADER: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
StringRef FileName(BlobStart, BlobLen);
|
|
if (const FileEntry *Umbrella = PP.getFileManager().getFile(FileName)) {
|
|
if (!CurrentModule->getUmbrellaHeader())
|
|
ModMap.setUmbrellaHeader(CurrentModule, Umbrella);
|
|
else if (CurrentModule->getUmbrellaHeader() != Umbrella) {
|
|
Error("mismatched umbrella headers in submodule");
|
|
return true;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_HEADER: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
// FIXME: Be more lazy about this!
|
|
StringRef FileName(BlobStart, BlobLen);
|
|
if (const FileEntry *File = PP.getFileManager().getFile(FileName)) {
|
|
if (std::find(CurrentModule->Headers.begin(),
|
|
CurrentModule->Headers.end(),
|
|
File) == CurrentModule->Headers.end())
|
|
ModMap.addHeader(CurrentModule, File, false);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_EXCLUDED_HEADER: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
// FIXME: Be more lazy about this!
|
|
StringRef FileName(BlobStart, BlobLen);
|
|
if (const FileEntry *File = PP.getFileManager().getFile(FileName)) {
|
|
if (std::find(CurrentModule->Headers.begin(),
|
|
CurrentModule->Headers.end(),
|
|
File) == CurrentModule->Headers.end())
|
|
ModMap.addHeader(CurrentModule, File, true);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_TOPHEADER: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
// FIXME: Be more lazy about this!
|
|
StringRef FileName(BlobStart, BlobLen);
|
|
if (const FileEntry *File = PP.getFileManager().getFile(FileName))
|
|
CurrentModule->TopHeaders.insert(File);
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_UMBRELLA_DIR: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
StringRef DirName(BlobStart, BlobLen);
|
|
if (const DirectoryEntry *Umbrella
|
|
= PP.getFileManager().getDirectory(DirName)) {
|
|
if (!CurrentModule->getUmbrellaDir())
|
|
ModMap.setUmbrellaDir(CurrentModule, Umbrella);
|
|
else if (CurrentModule->getUmbrellaDir() != Umbrella) {
|
|
Error("mismatched umbrella directories in submodule");
|
|
return true;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_METADATA: {
|
|
if (!First) {
|
|
Error("submodule metadata record not at beginning of block");
|
|
return true;
|
|
}
|
|
First = false;
|
|
|
|
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: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
for (unsigned Idx = 0; Idx != Record.size(); ++Idx) {
|
|
UnresolvedModuleImportExport Unresolved;
|
|
Unresolved.File = &F;
|
|
Unresolved.Mod = CurrentModule;
|
|
Unresolved.ID = Record[Idx];
|
|
Unresolved.IsImport = true;
|
|
Unresolved.IsWildcard = false;
|
|
UnresolvedModuleImportExports.push_back(Unresolved);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SUBMODULE_EXPORTS: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) {
|
|
UnresolvedModuleImportExport Unresolved;
|
|
Unresolved.File = &F;
|
|
Unresolved.Mod = CurrentModule;
|
|
Unresolved.ID = Record[Idx];
|
|
Unresolved.IsImport = false;
|
|
Unresolved.IsWildcard = Record[Idx + 1];
|
|
UnresolvedModuleImportExports.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: {
|
|
if (First) {
|
|
Error("missing submodule metadata record at beginning of block");
|
|
return true;
|
|
}
|
|
|
|
if (!CurrentModule)
|
|
break;
|
|
|
|
CurrentModule->addRequirement(StringRef(BlobStart, BlobLen),
|
|
Context.getLangOpts(),
|
|
Context.getTargetInfo());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// \brief 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) {
|
|
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"
|
|
|
|
ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++];
|
|
VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx);
|
|
LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion);
|
|
|
|
unsigned Length = Record[Idx++];
|
|
LangOpts.CurrentModule.assign(Record.begin() + Idx,
|
|
Record.begin() + Idx + Length);
|
|
return Listener.ReadLanguageOptions(LangOpts, Complain);
|
|
}
|
|
|
|
bool ASTReader::ParseTargetOptions(const RecordData &Record,
|
|
bool Complain,
|
|
ASTReaderListener &Listener) {
|
|
unsigned Idx = 0;
|
|
TargetOptions TargetOpts;
|
|
TargetOpts.Triple = ReadString(Record, Idx);
|
|
TargetOpts.CPU = ReadString(Record, Idx);
|
|
TargetOpts.ABI = ReadString(Record, Idx);
|
|
TargetOpts.CXXABI = ReadString(Record, Idx);
|
|
TargetOpts.LinkerVersion = 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);
|
|
}
|
|
|
|
bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain,
|
|
ASTReaderListener &Listener) {
|
|
DiagnosticOptions DiagOpts;
|
|
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));
|
|
}
|
|
|
|
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 IsUserSupplied = Record[Idx++];
|
|
bool IsFramework = Record[Idx++];
|
|
bool IgnoreSysRoot = Record[Idx++];
|
|
bool IsInternal = Record[Idx++];
|
|
bool ImplicitExternC = Record[Idx++];
|
|
HSOpts.UserEntries.push_back(
|
|
HeaderSearchOptions::Entry(Path, Group, IsUserSupplied, IsFramework,
|
|
IgnoreSysRoot, IsInternal, ImplicitExternC));
|
|
}
|
|
|
|
// System header prefixes.
|
|
for (unsigned N = Record[Idx++]; N; --N) {
|
|
std::string Prefix = ReadString(Record, Idx);
|
|
bool IsSystemHeader = Record[Idx++];
|
|
HSOpts.SystemHeaderPrefixes.push_back(
|
|
HeaderSearchOptions::SystemHeaderPrefix(Prefix, IsSystemHeader));
|
|
}
|
|
|
|
HSOpts.ResourceDir = ReadString(Record, Idx);
|
|
HSOpts.ModuleCachePath = ReadString(Record, Idx);
|
|
HSOpts.DisableModuleHash = Record[Idx++];
|
|
HSOpts.UseBuiltinIncludes = Record[Idx++];
|
|
HSOpts.UseStandardSystemIncludes = Record[Idx++];
|
|
HSOpts.UseStandardCXXIncludes = Record[Idx++];
|
|
HSOpts.UseLibcxx = Record[Idx++];
|
|
|
|
return Listener.ReadHeaderSearchOptions(HSOpts, 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.ImplicitPCHInclude = ReadString(Record, Idx);
|
|
PPOpts.ImplicitPTHInclude = 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);
|
|
}
|
|
|
|
std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator>
|
|
ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const {
|
|
if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord())
|
|
return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID,
|
|
Mod.NumPreprocessedEntities);
|
|
|
|
return std::make_pair(PreprocessingRecord::iterator(),
|
|
PreprocessingRecord::iterator());
|
|
}
|
|
|
|
std::pair<ASTReader::ModuleDeclIterator, ASTReader::ModuleDeclIterator>
|
|
ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) {
|
|
return std::make_pair(ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls),
|
|
ModuleDeclIterator(this, &Mod,
|
|
Mod.FileSortedDecls + Mod.NumFileSortedDecls));
|
|
}
|
|
|
|
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];
|
|
|
|
SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor);
|
|
M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset);
|
|
|
|
unsigned Code = M.PreprocessorDetailCursor.ReadCode();
|
|
switch (Code) {
|
|
case llvm::bitc::END_BLOCK:
|
|
return 0;
|
|
|
|
case llvm::bitc::ENTER_SUBBLOCK:
|
|
Error("unexpected subblock record in preprocessor detail block");
|
|
return 0;
|
|
|
|
case llvm::bitc::DEFINE_ABBREV:
|
|
Error("unexpected abbrevation record in preprocessor detail block");
|
|
return 0;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!PP.getPreprocessingRecord()) {
|
|
Error("no preprocessing record");
|
|
return 0;
|
|
}
|
|
|
|
// Read the record.
|
|
SourceRange Range(ReadSourceLocation(M, PPOffs.Begin),
|
|
ReadSourceLocation(M, PPOffs.End));
|
|
PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
|
|
const char *BlobStart = 0;
|
|
unsigned BlobLen = 0;
|
|
RecordData Record;
|
|
PreprocessorDetailRecordTypes RecType =
|
|
(PreprocessorDetailRecordTypes)M.PreprocessorDetailCursor.ReadRecord(
|
|
Code, Record, BlobStart, BlobLen);
|
|
switch (RecType) {
|
|
case PPD_MACRO_EXPANSION: {
|
|
bool isBuiltin = Record[0];
|
|
IdentifierInfo *Name = 0;
|
|
MacroDefinition *Def = 0;
|
|
if (isBuiltin)
|
|
Name = getLocalIdentifier(M, Record[1]);
|
|
else {
|
|
PreprocessedEntityID
|
|
GlobalID = getGlobalPreprocessedEntityID(M, Record[1]);
|
|
Def =cast<MacroDefinition>(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]);
|
|
MacroDefinition *MD
|
|
= new (PPRec) MacroDefinition(II, Range);
|
|
|
|
if (DeserializationListener)
|
|
DeserializationListener->MacroDefinitionRead(PPID, MD);
|
|
|
|
return MD;
|
|
}
|
|
|
|
case PPD_INCLUSION_DIRECTIVE: {
|
|
const char *FullFileNameStart = BlobStart + Record[0];
|
|
StringRef FullFileName(FullFileNameStart, BlobLen - Record[0]);
|
|
const FileEntry *File = 0;
|
|
if (!FullFileName.empty())
|
|
File = PP.getFileManager().getFile(FullFileName);
|
|
|
|
// FIXME: Stable encoding
|
|
InclusionDirective::InclusionKind Kind
|
|
= static_cast<InclusionDirective::InclusionKind>(Record[2]);
|
|
InclusionDirective *ID
|
|
= new (PPRec) InclusionDirective(PPRec, Kind,
|
|
StringRef(BlobStart, Record[0]),
|
|
Record[1], Record[3],
|
|
File,
|
|
Range);
|
|
return ID;
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("Invalid PreprocessorDetailRecordTypes");
|
|
}
|
|
|
|
/// \brief \arg 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. Find the next module that contains entities and return the ID
|
|
/// of the first entry.
|
|
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 getGlobalPreprocessedEntityID(M, M.BasePreprocessedEntityID);
|
|
}
|
|
|
|
return getTotalNumPreprocessedEntities();
|
|
}
|
|
|
|
namespace {
|
|
|
|
template <unsigned PPEntityOffset::*PPLoc>
|
|
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.ReadSourceLocation(M, PPE.*PPLoc);
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
/// \brief Returns the first preprocessed entity ID that ends after \arg BLoc.
|
|
PreprocessedEntityID
|
|
ASTReader::findBeginPreprocessedEntity(SourceLocation BLoc) const {
|
|
if (SourceMgr.isLocalSourceLocation(BLoc))
|
|
return getTotalNumPreprocessedEntities();
|
|
|
|
GlobalSLocOffsetMapType::const_iterator
|
|
SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset -
|
|
BLoc.getOffset());
|
|
assert(SLocMapI != GlobalSLocOffsetMap.end() &&
|
|
"Corrupted global sloc offset map");
|
|
|
|
if (SLocMapI->second->NumPreprocessedEntities == 0)
|
|
return findNextPreprocessedEntity(SLocMapI);
|
|
|
|
ModuleFile &M = *SLocMapI->second;
|
|
typedef const PPEntityOffset *pp_iterator;
|
|
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;
|
|
|
|
// 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(ReadSourceLocation(M, PPI->End),
|
|
BLoc)){
|
|
First = PPI;
|
|
++First;
|
|
Count = Count - Half - 1;
|
|
} else
|
|
Count = Half;
|
|
}
|
|
|
|
if (PPI == pp_end)
|
|
return findNextPreprocessedEntity(SLocMapI);
|
|
|
|
return getGlobalPreprocessedEntityID(M,
|
|
M.BasePreprocessedEntityID + (PPI - pp_begin));
|
|
}
|
|
|
|
/// \brief Returns the first preprocessed entity ID that begins after \arg ELoc.
|
|
PreprocessedEntityID
|
|
ASTReader::findEndPreprocessedEntity(SourceLocation ELoc) const {
|
|
if (SourceMgr.isLocalSourceLocation(ELoc))
|
|
return getTotalNumPreprocessedEntities();
|
|
|
|
GlobalSLocOffsetMapType::const_iterator
|
|
SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset -
|
|
ELoc.getOffset());
|
|
assert(SLocMapI != GlobalSLocOffsetMap.end() &&
|
|
"Corrupted global sloc offset map");
|
|
|
|
if (SLocMapI->second->NumPreprocessedEntities == 0)
|
|
return findNextPreprocessedEntity(SLocMapI);
|
|
|
|
ModuleFile &M = *SLocMapI->second;
|
|
typedef const PPEntityOffset *pp_iterator;
|
|
pp_iterator pp_begin = M.PreprocessedEntityOffsets;
|
|
pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities;
|
|
pp_iterator PPI =
|
|
std::upper_bound(pp_begin, pp_end, ELoc,
|
|
PPEntityComp<&PPEntityOffset::Begin>(*this, M));
|
|
|
|
if (PPI == pp_end)
|
|
return findNextPreprocessedEntity(SLocMapI);
|
|
|
|
return getGlobalPreprocessedEntityID(M,
|
|
M.BasePreprocessedEntityID + (PPI - pp_begin));
|
|
}
|
|
|
|
/// \brief 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 = findBeginPreprocessedEntity(Range.getBegin());
|
|
PreprocessedEntityID EndID = findEndPreprocessedEntity(Range.getEnd());
|
|
return std::make_pair(BeginID, EndID);
|
|
}
|
|
|
|
/// \brief Optionally returns true or false if the preallocated preprocessed
|
|
/// entity with index \arg Index came from file \arg FID.
|
|
llvm::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 = ReadSourceLocation(M, PPOffs.Begin);
|
|
if (Loc.isInvalid())
|
|
return false;
|
|
|
|
if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
namespace {
|
|
/// \brief Visitor used to search for information about a header file.
|
|
class HeaderFileInfoVisitor {
|
|
ASTReader &Reader;
|
|
const FileEntry *FE;
|
|
|
|
llvm::Optional<HeaderFileInfo> HFI;
|
|
|
|
public:
|
|
HeaderFileInfoVisitor(ASTReader &Reader, const FileEntry *FE)
|
|
: Reader(Reader), FE(FE) { }
|
|
|
|
static bool visit(ModuleFile &M, void *UserData) {
|
|
HeaderFileInfoVisitor *This
|
|
= static_cast<HeaderFileInfoVisitor *>(UserData);
|
|
|
|
HeaderFileInfoTrait Trait(This->Reader, M,
|
|
&This->Reader.getPreprocessor().getHeaderSearchInfo(),
|
|
M.HeaderFileFrameworkStrings,
|
|
This->FE->getName());
|
|
|
|
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(This->FE->getName(),
|
|
&Trait);
|
|
if (Pos == Table->end())
|
|
return false;
|
|
|
|
This->HFI = *Pos;
|
|
return true;
|
|
}
|
|
|
|
llvm::Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; }
|
|
};
|
|
}
|
|
|
|
HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) {
|
|
HeaderFileInfoVisitor Visitor(*this, FE);
|
|
ModuleMgr.visit(&HeaderFileInfoVisitor::visit, &Visitor);
|
|
if (llvm::Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo()) {
|
|
if (Listener)
|
|
Listener->ReadHeaderFileInfo(*HFI, FE->getUID());
|
|
return *HFI;
|
|
}
|
|
|
|
return HeaderFileInfo();
|
|
}
|
|
|
|
void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) {
|
|
// FIXME: Make it work properly with modules.
|
|
llvm::SmallVector<DiagnosticsEngine::DiagState *, 32> DiagStates;
|
|
for (ModuleIterator I = ModuleMgr.begin(), E = ModuleMgr.end(); I != E; ++I) {
|
|
ModuleFile &F = *(*I);
|
|
unsigned Idx = 0;
|
|
DiagStates.clear();
|
|
assert(!Diag.DiagStates.empty());
|
|
DiagStates.push_back(&Diag.DiagStates.front()); // the command-line one.
|
|
while (Idx < F.PragmaDiagMappings.size()) {
|
|
SourceLocation Loc = ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]);
|
|
unsigned DiagStateID = F.PragmaDiagMappings[Idx++];
|
|
if (DiagStateID != 0) {
|
|
Diag.DiagStatePoints.push_back(
|
|
DiagnosticsEngine::DiagStatePoint(DiagStates[DiagStateID-1],
|
|
FullSourceLoc(Loc, SourceMgr)));
|
|
continue;
|
|
}
|
|
|
|
assert(DiagStateID == 0);
|
|
// A new DiagState was created here.
|
|
Diag.DiagStates.push_back(*Diag.GetCurDiagState());
|
|
DiagnosticsEngine::DiagState *NewState = &Diag.DiagStates.back();
|
|
DiagStates.push_back(NewState);
|
|
Diag.DiagStatePoints.push_back(
|
|
DiagnosticsEngine::DiagStatePoint(NewState,
|
|
FullSourceLoc(Loc, SourceMgr)));
|
|
while (1) {
|
|
assert(Idx < F.PragmaDiagMappings.size() &&
|
|
"Invalid data, didn't find '-1' marking end of diag/map pairs");
|
|
if (Idx >= F.PragmaDiagMappings.size()) {
|
|
break; // Something is messed up but at least avoid infinite loop in
|
|
// release build.
|
|
}
|
|
unsigned DiagID = F.PragmaDiagMappings[Idx++];
|
|
if (DiagID == (unsigned)-1) {
|
|
break; // no more diag/map pairs for this location.
|
|
}
|
|
diag::Mapping Map = (diag::Mapping)F.PragmaDiagMappings[Idx++];
|
|
DiagnosticMappingInfo MappingInfo = Diag.makeMappingInfo(Map, Loc);
|
|
Diag.GetCurDiagState()->setMappingInfo(DiagID, MappingInfo);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// \brief 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]);
|
|
}
|
|
|
|
/// \brief 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) {
|
|
RecordLocation Loc = TypeCursorForIndex(Index);
|
|
llvm::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;
|
|
DeclsCursor.JumpToBit(Loc.Offset);
|
|
RecordData Record;
|
|
unsigned Code = DeclsCursor.ReadCode();
|
|
switch ((TypeCode)DeclsCursor.ReadRecord(Code, Record)) {
|
|
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_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);
|
|
return Context.getConstantArrayType(ElementType, Size,
|
|
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() != 6) {
|
|
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]);
|
|
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]);
|
|
|
|
unsigned Idx = 6;
|
|
unsigned NumParams = Record[Idx++];
|
|
SmallVector<QualType, 16> ParamTypes;
|
|
for (unsigned I = 0; I != NumParams; ++I)
|
|
ParamTypes.push_back(readType(*Loc.F, Record, Idx));
|
|
|
|
EPI.Variadic = Record[Idx++];
|
|
EPI.HasTrailingReturn = Record[Idx++];
|
|
EPI.TypeQuals = Record[Idx++];
|
|
EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]);
|
|
ExceptionSpecificationType EST =
|
|
static_cast<ExceptionSpecificationType>(Record[Idx++]);
|
|
EPI.ExceptionSpecType = EST;
|
|
SmallVector<QualType, 2> Exceptions;
|
|
if (EST == EST_Dynamic) {
|
|
EPI.NumExceptions = Record[Idx++];
|
|
for (unsigned I = 0; I != EPI.NumExceptions; ++I)
|
|
Exceptions.push_back(readType(*Loc.F, Record, Idx));
|
|
EPI.Exceptions = Exceptions.data();
|
|
} else if (EST == EST_ComputedNoexcept) {
|
|
EPI.NoexceptExpr = ReadExpr(*Loc.F);
|
|
} else if (EST == EST_Uninstantiated) {
|
|
EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
|
|
EPI.ExceptionSpecTemplate = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
|
|
} else if (EST == EST_Unevaluated) {
|
|
EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
|
|
}
|
|
return Context.getFunctionType(ResultType, ParamTypes.data(), NumParams,
|
|
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:
|
|
return Context.getAutoType(readType(*Loc.F, Record, Idx));
|
|
|
|
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_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();
|
|
llvm::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);
|
|
return Context.getElaboratedType(Keyword, NNS, NamedType);
|
|
}
|
|
|
|
case TYPE_OBJC_INTERFACE: {
|
|
unsigned Idx = 0;
|
|
ObjCInterfaceDecl *ItfD
|
|
= ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx);
|
|
return Context.getObjCInterfaceType(ItfD->getCanonicalDecl());
|
|
}
|
|
|
|
case TYPE_OBJC_OBJECT: {
|
|
unsigned Idx = 0;
|
|
QualType Base = 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));
|
|
return Context.getObjCObjectType(Base, Protos.data(), NumProtos);
|
|
}
|
|
|
|
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),
|
|
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.
|
|
return
|
|
QualType(new (Context, TypeAlignment) InjectedClassNameType(D, TST), 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 = this->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 = this->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.size(), Args.data());
|
|
}
|
|
|
|
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.data(),
|
|
Args.size());
|
|
else
|
|
T = Context.getTemplateSpecializationType(Name, Args.data(),
|
|
Args.size(), 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);
|
|
}
|
|
}
|
|
llvm_unreachable("Invalid TypeCode!");
|
|
}
|
|
|
|
class clang::TypeLocReader : public TypeLocVisitor<TypeLocReader> {
|
|
ASTReader &Reader;
|
|
ModuleFile &F;
|
|
const ASTReader::RecordData &Record;
|
|
unsigned &Idx;
|
|
|
|
SourceLocation ReadSourceLocation(const ASTReader::RecordData &R,
|
|
unsigned &I) {
|
|
return Reader.ReadSourceLocation(F, R, I);
|
|
}
|
|
|
|
template<typename T>
|
|
T *ReadDeclAs(const ASTReader::RecordData &Record, unsigned &Idx) {
|
|
return Reader.ReadDeclAs<T>(F, Record, Idx);
|
|
}
|
|
|
|
public:
|
|
TypeLocReader(ASTReader &Reader, ModuleFile &F,
|
|
const ASTReader::RecordData &Record, unsigned &Idx)
|
|
: Reader(Reader), F(F), 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);
|
|
};
|
|
|
|
void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
|
|
// nothing to do
|
|
}
|
|
void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
|
|
TL.setBuiltinLoc(ReadSourceLocation(Record, Idx));
|
|
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(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) {
|
|
TL.setStarLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
|
|
TL.setCaretLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
|
|
TL.setAmpLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
|
|
TL.setAmpAmpLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
|
|
TL.setStarLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setClassTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) {
|
|
TL.setLBracketLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRBracketLoc(ReadSourceLocation(Record, Idx));
|
|
if (Record[Idx++])
|
|
TL.setSizeExpr(Reader.ReadExpr(F));
|
|
else
|
|
TL.setSizeExpr(0);
|
|
}
|
|
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::VisitDependentSizedExtVectorTypeLoc(
|
|
DependentSizedExtVectorTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
|
|
TL.setLocalRangeBegin(ReadSourceLocation(Record, Idx));
|
|
TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLocalRangeEnd(ReadSourceLocation(Record, Idx));
|
|
for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) {
|
|
TL.setArg(i, ReadDeclAs<ParmVarDecl>(Record, Idx));
|
|
}
|
|
}
|
|
void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
|
|
VisitFunctionTypeLoc(TL);
|
|
}
|
|
void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
|
|
VisitFunctionTypeLoc(TL);
|
|
}
|
|
void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
|
|
TL.setTypeofLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
|
|
TL.setTypeofLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) {
|
|
TL.setKWLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
|
|
TL.setAttrNameLoc(ReadSourceLocation(Record, Idx));
|
|
if (TL.hasAttrOperand()) {
|
|
SourceRange range;
|
|
range.setBegin(ReadSourceLocation(Record, Idx));
|
|
range.setEnd(ReadSourceLocation(Record, Idx));
|
|
TL.setAttrOperandParensRange(range);
|
|
}
|
|
if (TL.hasAttrExprOperand()) {
|
|
if (Record[Idx++])
|
|
TL.setAttrExprOperand(Reader.ReadExpr(F));
|
|
else
|
|
TL.setAttrExprOperand(0);
|
|
} else if (TL.hasAttrEnumOperand())
|
|
TL.setAttrEnumOperandLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc(
|
|
SubstTemplateTypeParmTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc(
|
|
SubstTemplateTypeParmPackTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitTemplateSpecializationTypeLoc(
|
|
TemplateSpecializationTypeLoc TL) {
|
|
TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
|
|
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(Record, Idx));
|
|
TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
|
|
TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
|
|
TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc(
|
|
DependentTemplateSpecializationTypeLoc TL) {
|
|
TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
|
|
TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
|
|
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(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
|
|
TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
|
|
TL.setHasBaseTypeAsWritten(Record[Idx++]);
|
|
TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
|
|
for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
|
|
TL.setProtocolLoc(i, ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
|
|
TL.setStarLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
|
|
TL.setKWLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
|
TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
|
}
|
|
|
|
TypeSourceInfo *ASTReader::GetTypeSourceInfo(ModuleFile &F,
|
|
const RecordData &Record,
|
|
unsigned &Idx) {
|
|
QualType InfoTy = readType(F, Record, Idx);
|
|
if (InfoTy.isNull())
|
|
return 0;
|
|
|
|
TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy);
|
|
TypeLocReader TLR(*this, F, Record, Idx);
|
|
for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc())
|
|
TLR.Visit(TL);
|
|
return TInfo;
|
|
}
|
|
|
|
QualType ASTReader::GetType(TypeID ID) {
|
|
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_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_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;
|
|
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_VA_LIST_TAG:
|
|
T = Context.getVaListTagType();
|
|
break;
|
|
|
|
case PREDEF_TYPE_BUILTIN_FN:
|
|
T = Context.BuiltinFnTy;
|
|
break;
|
|
}
|
|
|
|
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;
|
|
|
|
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));
|
|
}
|
|
|
|
Decl *ASTReader::GetExternalDecl(uint32_t ID) {
|
|
return GetDecl(ID);
|
|
}
|
|
|
|
uint64_t ASTReader::readCXXBaseSpecifiers(ModuleFile &M, const RecordData &Record,
|
|
unsigned &Idx){
|
|
if (Idx >= Record.size())
|
|
return 0;
|
|
|
|
unsigned LocalID = Record[Idx++];
|
|
return getGlobalBitOffset(M, M.CXXBaseSpecifiersOffsets[LocalID - 1]);
|
|
}
|
|
|
|
CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) {
|
|
RecordLocation Loc = getLocalBitOffset(Offset);
|
|
llvm::BitstreamCursor &Cursor = Loc.F->DeclsCursor;
|
|
SavedStreamPosition SavedPosition(Cursor);
|
|
Cursor.JumpToBit(Loc.Offset);
|
|
ReadingKindTracker ReadingKind(Read_Decl, *this);
|
|
RecordData Record;
|
|
unsigned Code = Cursor.ReadCode();
|
|
unsigned RecCode = Cursor.ReadRecord(Code, Record);
|
|
if (RecCode != DECL_CXX_BASE_SPECIFIERS) {
|
|
Error("Malformed AST file: missing C++ base specifiers");
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
|
|
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 {
|
|
GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(ID);
|
|
assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
|
|
return &M == I->second;
|
|
}
|
|
|
|
ModuleFile *ASTReader::getOwningModuleFile(Decl *D) {
|
|
if (!D->isFromASTFile())
|
|
return 0;
|
|
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();
|
|
|
|
unsigned RawLocation = 0;
|
|
RecordLocation Rec = DeclCursorForID(ID, RawLocation);
|
|
return ReadSourceLocation(*Rec.F, RawLocation);
|
|
}
|
|
|
|
Decl *ASTReader::GetDecl(DeclID ID) {
|
|
if (ID < NUM_PREDEF_DECL_IDS) {
|
|
switch ((PredefinedDeclIDs)ID) {
|
|
case PREDEF_DECL_NULL_ID:
|
|
return 0;
|
|
|
|
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();
|
|
}
|
|
}
|
|
|
|
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 0;
|
|
}
|
|
|
|
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++]);
|
|
}
|
|
|
|
/// \brief 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);
|
|
Loc.F->DeclsCursor.JumpToBit(Loc.Offset);
|
|
return ReadStmtFromStream(*Loc.F);
|
|
}
|
|
|
|
namespace {
|
|
class FindExternalLexicalDeclsVisitor {
|
|
ASTReader &Reader;
|
|
const DeclContext *DC;
|
|
bool (*isKindWeWant)(Decl::Kind);
|
|
|
|
SmallVectorImpl<Decl*> &Decls;
|
|
bool PredefsVisited[NUM_PREDEF_DECL_IDS];
|
|
|
|
public:
|
|
FindExternalLexicalDeclsVisitor(ASTReader &Reader, const DeclContext *DC,
|
|
bool (*isKindWeWant)(Decl::Kind),
|
|
SmallVectorImpl<Decl*> &Decls)
|
|
: Reader(Reader), DC(DC), isKindWeWant(isKindWeWant), Decls(Decls)
|
|
{
|
|
for (unsigned I = 0; I != NUM_PREDEF_DECL_IDS; ++I)
|
|
PredefsVisited[I] = false;
|
|
}
|
|
|
|
static bool visit(ModuleFile &M, bool Preorder, void *UserData) {
|
|
if (Preorder)
|
|
return false;
|
|
|
|
FindExternalLexicalDeclsVisitor *This
|
|
= static_cast<FindExternalLexicalDeclsVisitor *>(UserData);
|
|
|
|
ModuleFile::DeclContextInfosMap::iterator Info
|
|
= M.DeclContextInfos.find(This->DC);
|
|
if (Info == M.DeclContextInfos.end() || !Info->second.LexicalDecls)
|
|
return false;
|
|
|
|
// Load all of the declaration IDs
|
|
for (const KindDeclIDPair *ID = Info->second.LexicalDecls,
|
|
*IDE = ID + Info->second.NumLexicalDecls;
|
|
ID != IDE; ++ID) {
|
|
if (This->isKindWeWant && !This->isKindWeWant((Decl::Kind)ID->first))
|
|
continue;
|
|
|
|
// Don't add predefined declarations to the lexical context more
|
|
// than once.
|
|
if (ID->second < NUM_PREDEF_DECL_IDS) {
|
|
if (This->PredefsVisited[ID->second])
|
|
continue;
|
|
|
|
This->PredefsVisited[ID->second] = true;
|
|
}
|
|
|
|
if (Decl *D = This->Reader.GetLocalDecl(M, ID->second)) {
|
|
if (!This->DC->isDeclInLexicalTraversal(D))
|
|
This->Decls.push_back(D);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
};
|
|
}
|
|
|
|
ExternalLoadResult ASTReader::FindExternalLexicalDecls(const DeclContext *DC,
|
|
bool (*isKindWeWant)(Decl::Kind),
|
|
SmallVectorImpl<Decl*> &Decls) {
|
|
// There might be lexical decls in multiple modules, for the TU at
|
|
// least. Walk all of the modules in the order they were loaded.
|
|
FindExternalLexicalDeclsVisitor Visitor(*this, DC, isKindWeWant, Decls);
|
|
ModuleMgr.visitDepthFirst(&FindExternalLexicalDeclsVisitor::visit, &Visitor);
|
|
++NumLexicalDeclContextsRead;
|
|
return ELR_Success;
|
|
}
|
|
|
|
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)));
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
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 = std::lower_bound(DInfo.Decls.begin(), DInfo.Decls.end(),
|
|
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 = std::upper_bound(DInfo.Decls.begin(), DInfo.Decls.end(),
|
|
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)));
|
|
}
|
|
|
|
namespace {
|
|
/// \brief ModuleFile visitor used to perform name lookup into a
|
|
/// declaration context.
|
|
class DeclContextNameLookupVisitor {
|
|
ASTReader &Reader;
|
|
llvm::SmallVectorImpl<const DeclContext *> &Contexts;
|
|
DeclarationName Name;
|
|
SmallVectorImpl<NamedDecl *> &Decls;
|
|
|
|
public:
|
|
DeclContextNameLookupVisitor(ASTReader &Reader,
|
|
SmallVectorImpl<const DeclContext *> &Contexts,
|
|
DeclarationName Name,
|
|
SmallVectorImpl<NamedDecl *> &Decls)
|
|
: Reader(Reader), Contexts(Contexts), Name(Name), Decls(Decls) { }
|
|
|
|
static bool visit(ModuleFile &M, void *UserData) {
|
|
DeclContextNameLookupVisitor *This
|
|
= static_cast<DeclContextNameLookupVisitor *>(UserData);
|
|
|
|
// Check whether we have any visible declaration information for
|
|
// this context in this module.
|
|
ModuleFile::DeclContextInfosMap::iterator Info;
|
|
bool FoundInfo = false;
|
|
for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) {
|
|
Info = M.DeclContextInfos.find(This->Contexts[I]);
|
|
if (Info != M.DeclContextInfos.end() &&
|
|
Info->second.NameLookupTableData) {
|
|
FoundInfo = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!FoundInfo)
|
|
return false;
|
|
|
|
// Look for this name within this module.
|
|
ASTDeclContextNameLookupTable *LookupTable =
|
|
Info->second.NameLookupTableData;
|
|
ASTDeclContextNameLookupTable::iterator Pos
|
|
= LookupTable->find(This->Name);
|
|
if (Pos == LookupTable->end())
|
|
return false;
|
|
|
|
bool FoundAnything = false;
|
|
ASTDeclContextNameLookupTrait::data_type Data = *Pos;
|
|
for (; Data.first != Data.second; ++Data.first) {
|
|
NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, *Data.first);
|
|
if (!ND)
|
|
continue;
|
|
|
|
if (ND->getDeclName() != This->Name) {
|
|
// A name might be null because the decl's redeclarable part is
|
|
// currently read before reading its name. The lookup is triggered by
|
|
// building that decl (likely indirectly), and so it is later in the
|
|
// sense of "already existing" and can be ignored here.
|
|
continue;
|
|
}
|
|
|
|
// Record this declaration.
|
|
FoundAnything = true;
|
|
This->Decls.push_back(ND);
|
|
}
|
|
|
|
return FoundAnything;
|
|
}
|
|
};
|
|
}
|
|
|
|
DeclContext::lookup_result
|
|
ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
|
|
DeclarationName Name) {
|
|
assert(DC->hasExternalVisibleStorage() &&
|
|
"DeclContext has no visible decls in storage");
|
|
if (!Name)
|
|
return DeclContext::lookup_result(DeclContext::lookup_iterator(0),
|
|
DeclContext::lookup_iterator(0));
|
|
|
|
SmallVector<NamedDecl *, 64> Decls;
|
|
|
|
// Compute the declaration contexts we need to look into. Multiple such
|
|
// declaration contexts occur when two declaration contexts from disjoint
|
|
// modules get merged, e.g., when two namespaces with the same name are
|
|
// independently defined in separate modules.
|
|
SmallVector<const DeclContext *, 2> Contexts;
|
|
Contexts.push_back(DC);
|
|
|
|
if (DC->isNamespace()) {
|
|
MergedDeclsMap::iterator Merged
|
|
= MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC)));
|
|
if (Merged != MergedDecls.end()) {
|
|
for (unsigned I = 0, N = Merged->second.size(); I != N; ++I)
|
|
Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I])));
|
|
}
|
|
}
|
|
|
|
DeclContextNameLookupVisitor Visitor(*this, Contexts, Name, Decls);
|
|
ModuleMgr.visit(&DeclContextNameLookupVisitor::visit, &Visitor);
|
|
++NumVisibleDeclContextsRead;
|
|
SetExternalVisibleDeclsForName(DC, Name, Decls);
|
|
return const_cast<DeclContext*>(DC)->lookup(Name);
|
|
}
|
|
|
|
namespace {
|
|
/// \brief ModuleFile visitor used to retrieve all visible names in a
|
|
/// declaration context.
|
|
class DeclContextAllNamesVisitor {
|
|
ASTReader &Reader;
|
|
llvm::SmallVectorImpl<const DeclContext *> &Contexts;
|
|
llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > &Decls;
|
|
|
|
public:
|
|
DeclContextAllNamesVisitor(ASTReader &Reader,
|
|
SmallVectorImpl<const DeclContext *> &Contexts,
|
|
llvm::DenseMap<DeclarationName,
|
|
SmallVector<NamedDecl *, 8> > &Decls)
|
|
: Reader(Reader), Contexts(Contexts), Decls(Decls) { }
|
|
|
|
static bool visit(ModuleFile &M, void *UserData) {
|
|
DeclContextAllNamesVisitor *This
|
|
= static_cast<DeclContextAllNamesVisitor *>(UserData);
|
|
|
|
// Check whether we have any visible declaration information for
|
|
// this context in this module.
|
|
ModuleFile::DeclContextInfosMap::iterator Info;
|
|
bool FoundInfo = false;
|
|
for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) {
|
|
Info = M.DeclContextInfos.find(This->Contexts[I]);
|
|
if (Info != M.DeclContextInfos.end() &&
|
|
Info->second.NameLookupTableData) {
|
|
FoundInfo = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!FoundInfo)
|
|
return false;
|
|
|
|
ASTDeclContextNameLookupTable *LookupTable =
|
|
Info->second.NameLookupTableData;
|
|
bool FoundAnything = false;
|
|
for (ASTDeclContextNameLookupTable::data_iterator
|
|
I = LookupTable->data_begin(), E = LookupTable->data_end();
|
|
I != E; ++I) {
|
|
ASTDeclContextNameLookupTrait::data_type Data = *I;
|
|
for (; Data.first != Data.second; ++Data.first) {
|
|
NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M,
|
|
*Data.first);
|
|
if (!ND)
|
|
continue;
|
|
|
|
// Record this declaration.
|
|
FoundAnything = true;
|
|
This->Decls[ND->getDeclName()].push_back(ND);
|
|
}
|
|
}
|
|
|
|
return FoundAnything;
|
|
}
|
|
};
|
|
}
|
|
|
|
void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) {
|
|
if (!DC->hasExternalVisibleStorage())
|
|
return;
|
|
llvm::DenseMap<DeclarationName, llvm::SmallVector<NamedDecl*, 8> > Decls;
|
|
|
|
// Compute the declaration contexts we need to look into. Multiple such
|
|
// declaration contexts occur when two declaration contexts from disjoint
|
|
// modules get merged, e.g., when two namespaces with the same name are
|
|
// independently defined in separate modules.
|
|
SmallVector<const DeclContext *, 2> Contexts;
|
|
Contexts.push_back(DC);
|
|
|
|
if (DC->isNamespace()) {
|
|
MergedDeclsMap::iterator Merged
|
|
= MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC)));
|
|
if (Merged != MergedDecls.end()) {
|
|
for (unsigned I = 0, N = Merged->second.size(); I != N; ++I)
|
|
Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I])));
|
|
}
|
|
}
|
|
|
|
DeclContextAllNamesVisitor Visitor(*this, Contexts, Decls);
|
|
ModuleMgr.visit(&DeclContextAllNamesVisitor::visit, &Visitor);
|
|
++NumVisibleDeclContextsRead;
|
|
|
|
for (llvm::DenseMap<DeclarationName,
|
|
llvm::SmallVector<NamedDecl*, 8> >::iterator
|
|
I = Decls.begin(), E = Decls.end(); I != E; ++I) {
|
|
SetExternalVisibleDeclsForName(DC, I->first, I->second);
|
|
}
|
|
const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false);
|
|
}
|
|
|
|
/// \brief 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 (ObjCImplDecl::method_iterator
|
|
I = ImplD->meth_begin(), E = ImplD->meth_end(); I != E; ++I)
|
|
Consumer->HandleInterestingDecl(DeclGroupRef(*I));
|
|
|
|
Consumer->HandleInterestingDecl(DeclGroupRef(ImplD));
|
|
}
|
|
|
|
void ASTReader::PassInterestingDeclsToConsumer() {
|
|
assert(Consumer);
|
|
while (!InterestingDecls.empty()) {
|
|
Decl *D = InterestingDecls.front();
|
|
InterestingDecls.pop_front();
|
|
|
|
PassInterestingDeclToConsumer(D);
|
|
}
|
|
}
|
|
|
|
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)
|
|
return;
|
|
|
|
for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) {
|
|
// Force deserialization of this decl, which will cause it to be queued for
|
|
// passing to the consumer.
|
|
GetDecl(ExternalDefinitions[I]);
|
|
}
|
|
ExternalDefinitions.clear();
|
|
|
|
PassInterestingDeclsToConsumer();
|
|
}
|
|
|
|
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 *)0);
|
|
unsigned NumIdentifiersLoaded
|
|
= IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(),
|
|
IdentifiersLoaded.end(),
|
|
(IdentifierInfo *)0);
|
|
unsigned NumMacrosLoaded
|
|
= MacrosLoaded.size() - std::count(MacrosLoaded.begin(),
|
|
MacrosLoaded.end(),
|
|
(MacroInfo *)0);
|
|
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));
|
|
std::fprintf(stderr, " %u method pool misses\n", NumMethodPoolMisses);
|
|
}
|
|
std::fprintf(stderr, "\n");
|
|
dump();
|
|
std::fprintf(stderr, "\n");
|
|
}
|
|
|
|
template<typename Key, typename ModuleFile, unsigned InitialCapacity>
|
|
static void
|
|
dumpModuleIDMap(StringRef Name,
|
|
const ContinuousRangeMap<Key, ModuleFile *,
|
|
InitialCapacity> &Map) {
|
|
if (Map.begin() == Map.end())
|
|
return;
|
|
|
|
typedef ContinuousRangeMap<Key, ModuleFile *, InitialCapacity> MapType;
|
|
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";
|
|
}
|
|
}
|
|
|
|
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 (ModuleManager::ModuleConstIterator M = ModuleMgr.begin(),
|
|
MEnd = ModuleMgr.end();
|
|
M != MEnd; ++M)
|
|
(*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 (ModuleConstIterator I = ModuleMgr.begin(),
|
|
E = ModuleMgr.end(); I != E; ++I) {
|
|
if (llvm::MemoryBuffer *buf = (*I)->Buffer.get()) {
|
|
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 (unsigned I = 0, N = PreloadedDecls.size(); I != N; ++I) {
|
|
SemaObj->pushExternalDeclIntoScope(PreloadedDecls[I],
|
|
PreloadedDecls[I]->getDeclName());
|
|
}
|
|
PreloadedDecls.clear();
|
|
|
|
// Load the offsets of the declarations that Sema references.
|
|
// They will be lazily deserialized when needed.
|
|
if (!SemaDeclRefs.empty()) {
|
|
assert(SemaDeclRefs.size() == 2 && "More decl refs than expected!");
|
|
if (!SemaObj->StdNamespace)
|
|
SemaObj->StdNamespace = SemaDeclRefs[0];
|
|
if (!SemaObj->StdBadAlloc)
|
|
SemaObj->StdBadAlloc = SemaDeclRefs[1];
|
|
}
|
|
|
|
if (!FPPragmaOptions.empty()) {
|
|
assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS");
|
|
SemaObj->FPFeatures.fp_contract = FPPragmaOptions[0];
|
|
}
|
|
|
|
if (!OpenCLExtensions.empty()) {
|
|
unsigned I = 0;
|
|
#define OPENCLEXT(nm) SemaObj->OpenCLFeatures.nm = OpenCLExtensions[I++];
|
|
#include "clang/Basic/OpenCLExtensions.def"
|
|
|
|
assert(OpenCLExtensions.size() == I && "Wrong number of OPENCL_EXTENSIONS");
|
|
}
|
|
}
|
|
|
|
IdentifierInfo* ASTReader::get(const char *NameStart, const char *NameEnd) {
|
|
// Note that we are loading an identifier.
|
|
Deserializing AnIdentifier(this);
|
|
|
|
IdentifierLookupVisitor Visitor(StringRef(NameStart, NameEnd - NameStart),
|
|
/*PriorGeneration=*/0);
|
|
ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor);
|
|
IdentifierInfo *II = Visitor.getIdentifierInfo();
|
|
markIdentifierUpToDate(II);
|
|
return II;
|
|
}
|
|
|
|
namespace clang {
|
|
/// \brief An identifier-lookup iterator that enumerates all of the
|
|
/// identifiers stored within a set of AST files.
|
|
class ASTIdentifierIterator : public IdentifierIterator {
|
|
/// \brief The AST reader whose identifiers are being enumerated.
|
|
const ASTReader &Reader;
|
|
|
|
/// \brief The current index into the chain of AST files stored in
|
|
/// the AST reader.
|
|
unsigned Index;
|
|
|
|
/// \brief The current position within the identifier lookup table
|
|
/// of the current AST file.
|
|
ASTIdentifierLookupTable::key_iterator Current;
|
|
|
|
/// \brief The end position within the identifier lookup table of
|
|
/// the current AST file.
|
|
ASTIdentifierLookupTable::key_iterator End;
|
|
|
|
public:
|
|
explicit ASTIdentifierIterator(const ASTReader &Reader);
|
|
|
|
virtual StringRef Next();
|
|
};
|
|
}
|
|
|
|
ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader)
|
|
: Reader(Reader), Index(Reader.ModuleMgr.size() - 1) {
|
|
ASTIdentifierLookupTable *IdTable
|
|
= (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].IdentifierLookupTable;
|
|
Current = IdTable->key_begin();
|
|
End = IdTable->key_end();
|
|
}
|
|
|
|
StringRef ASTIdentifierIterator::Next() {
|
|
while (Current == End) {
|
|
// If we have exhausted all of our AST files, we're done.
|
|
if (Index == 0)
|
|
return StringRef();
|
|
|
|
--Index;
|
|
ASTIdentifierLookupTable *IdTable
|
|
= (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].
|
|
IdentifierLookupTable;
|
|
Current = IdTable->key_begin();
|
|
End = IdTable->key_end();
|
|
}
|
|
|
|
// We have any identifiers remaining in the current AST file; return
|
|
// the next one.
|
|
std::pair<const char*, unsigned> Key = *Current;
|
|
++Current;
|
|
return StringRef(Key.first, Key.second);
|
|
}
|
|
|
|
IdentifierIterator *ASTReader::getIdentifiers() const {
|
|
return new ASTIdentifierIterator(*this);
|
|
}
|
|
|
|
namespace clang { namespace serialization {
|
|
class ReadMethodPoolVisitor {
|
|
ASTReader &Reader;
|
|
Selector Sel;
|
|
unsigned PriorGeneration;
|
|
llvm::SmallVector<ObjCMethodDecl *, 4> InstanceMethods;
|
|
llvm::SmallVector<ObjCMethodDecl *, 4> FactoryMethods;
|
|
|
|
public:
|
|
ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel,
|
|
unsigned PriorGeneration)
|
|
: Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) { }
|
|
|
|
static bool visit(ModuleFile &M, void *UserData) {
|
|
ReadMethodPoolVisitor *This
|
|
= static_cast<ReadMethodPoolVisitor *>(UserData);
|
|
|
|
if (!M.SelectorLookupTable)
|
|
return false;
|
|
|
|
// If we've already searched this module file, skip it now.
|
|
if (M.Generation <= This->PriorGeneration)
|
|
return true;
|
|
|
|
ASTSelectorLookupTable *PoolTable
|
|
= (ASTSelectorLookupTable*)M.SelectorLookupTable;
|
|
ASTSelectorLookupTable::iterator Pos = PoolTable->find(This->Sel);
|
|
if (Pos == PoolTable->end())
|
|
return false;
|
|
|
|
++This->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?
|
|
++This->Reader.NumMethodPoolEntriesRead;
|
|
ASTSelectorLookupTrait::data_type Data = *Pos;
|
|
if (This->Reader.DeserializationListener)
|
|
This->Reader.DeserializationListener->SelectorRead(Data.ID,
|
|
This->Sel);
|
|
|
|
This->InstanceMethods.append(Data.Instance.begin(), Data.Instance.end());
|
|
This->FactoryMethods.append(Data.Factory.begin(), Data.Factory.end());
|
|
return true;
|
|
}
|
|
|
|
/// \brief Retrieve the instance methods found by this visitor.
|
|
ArrayRef<ObjCMethodDecl *> getInstanceMethods() const {
|
|
return InstanceMethods;
|
|
}
|
|
|
|
/// \brief Retrieve the instance methods found by this visitor.
|
|
ArrayRef<ObjCMethodDecl *> getFactoryMethods() const {
|
|
return FactoryMethods;
|
|
}
|
|
};
|
|
} } // end namespace clang::serialization
|
|
|
|
/// \brief 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 = CurrentGeneration;
|
|
|
|
// Search for methods defined with this selector.
|
|
ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration);
|
|
ModuleMgr.visit(&ReadMethodPoolVisitor::visit, &Visitor);
|
|
|
|
if (Visitor.getInstanceMethods().empty() &&
|
|
Visitor.getFactoryMethods().empty()) {
|
|
++NumMethodPoolMisses;
|
|
return;
|
|
}
|
|
|
|
if (!getSema())
|
|
return;
|
|
|
|
Sema &S = *getSema();
|
|
Sema::GlobalMethodPool::iterator Pos
|
|
= S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first;
|
|
|
|
addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first);
|
|
addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second);
|
|
}
|
|
|
|
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::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::ReadDynamicClasses(SmallVectorImpl<CXXRecordDecl *> &Decls) {
|
|
for (unsigned I = 0, N = DynamicClasses.size(); I != N; ++I) {
|
|
CXXRecordDecl *D
|
|
= dyn_cast_or_null<CXXRecordDecl>(GetDecl(DynamicClasses[I]));
|
|
if (D)
|
|
Decls.push_back(D);
|
|
}
|
|
DynamicClasses.clear();
|
|
}
|
|
|
|
void
|
|
ASTReader::ReadLocallyScopedExternalDecls(SmallVectorImpl<NamedDecl *> &Decls) {
|
|
for (unsigned I = 0, N = LocallyScopedExternalDecls.size(); I != N; ++I) {
|
|
NamedDecl *D
|
|
= dyn_cast_or_null<NamedDecl>(GetDecl(LocallyScopedExternalDecls[I]));
|
|
if (D)
|
|
Decls.push_back(D);
|
|
}
|
|
LocallyScopedExternalDecls.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::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);
|
|
}
|
|
|
|
/// \brief 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 Nonrecursive should be true to indicate that the caller knows that
|
|
/// this call is non-recursive, and therefore the globally-visible declarations
|
|
/// will not be placed onto the pending queue.
|
|
void
|
|
ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II,
|
|
const SmallVectorImpl<uint32_t> &DeclIDs,
|
|
bool Nonrecursive) {
|
|
if (NumCurrentElementsDeserializing && !Nonrecursive) {
|
|
PendingIdentifierInfos.push_back(PendingIdentifierInfo());
|
|
PendingIdentifierInfo &PII = PendingIdentifierInfos.back();
|
|
PII.II = II;
|
|
PII.DeclIDs.append(DeclIDs.begin(), DeclIDs.end());
|
|
return;
|
|
}
|
|
|
|
for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) {
|
|
NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I]));
|
|
if (SemaObj) {
|
|
// 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.
|
|
SemaObj->pushExternalDeclIntoScope(D, II);
|
|
} else {
|
|
// 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.
|
|
PreloadedDecls.push_back(D);
|
|
}
|
|
}
|
|
}
|
|
|
|
IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) {
|
|
if (ID == 0)
|
|
return 0;
|
|
|
|
if (IdentifiersLoaded.empty()) {
|
|
Error("no identifier table in AST file");
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
IdentifiersLoaded[ID]
|
|
= &PP.getIdentifierTable().get(StringRef(Str, StrLen));
|
|
if (DeserializationListener)
|
|
DeserializationListener->IdentifierRead(ID + 1, IdentifiersLoaded[ID]);
|
|
}
|
|
|
|
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;
|
|
|
|
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, MacroInfo *Hint) {
|
|
if (ID == 0)
|
|
return 0;
|
|
|
|
if (MacrosLoaded.empty()) {
|
|
Error("no macro table in AST file");
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
ReadMacroRecord(*M, M->MacroOffsets[Index], Hint);
|
|
}
|
|
|
|
return MacrosLoaded[ID];
|
|
}
|
|
|
|
MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) {
|
|
if (LocalID < NUM_PREDEF_MACRO_IDS)
|
|
return LocalID;
|
|
|
|
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;
|
|
|
|
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 0;
|
|
}
|
|
|
|
if (GlobalID > SubmodulesLoaded.size()) {
|
|
Error("submodule ID out of range in AST file");
|
|
return 0;
|
|
}
|
|
|
|
return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS];
|
|
}
|
|
|
|
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() == 0) {
|
|
// 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;
|
|
|
|
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) {
|
|
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::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:
|
|
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 (Context) 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) {
|
|
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::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) {
|
|
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);
|
|
bool ForReferenceParam = Record[Idx++];
|
|
return TemplateArgument(D, ForReferenceParam);
|
|
}
|
|
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);
|
|
llvm::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(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));
|
|
|
|
TemplateParameterList* TemplateParams =
|
|
TemplateParameterList::Create(Context, TemplateLoc, LAngleLoc,
|
|
Params.data(), Params.size(), RAngleLoc);
|
|
return TemplateParams;
|
|
}
|
|
|
|
void
|
|
ASTReader::
|
|
ReadTemplateArgumentList(SmallVector<TemplateArgument, 8> &TemplArgs,
|
|
ModuleFile &F, const RecordData &Record,
|
|
unsigned &Idx) {
|
|
unsigned NumTemplateArgs = Record[Idx++];
|
|
TemplArgs.reserve(NumTemplateArgs);
|
|
while (NumTemplateArgs--)
|
|
TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx));
|
|
}
|
|
|
|
/// \brief Read a UnresolvedSet structure.
|
|
void ASTReader::ReadUnresolvedSet(ModuleFile &F, UnresolvedSetImpl &Set,
|
|
const RecordData &Record, unsigned &Idx) {
|
|
unsigned NumDecls = Record[Idx++];
|
|
while (NumDecls--) {
|
|
NamedDecl *D = ReadDeclAs<NamedDecl>(F, Record, Idx);
|
|
AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
|
|
Set.addDecl(D, 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;
|
|
}
|
|
|
|
std::pair<CXXCtorInitializer **, unsigned>
|
|
ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record,
|
|
unsigned &Idx) {
|
|
CXXCtorInitializer **CtorInitializers = 0;
|
|
unsigned NumInitializers = Record[Idx++];
|
|
if (NumInitializers) {
|
|
CtorInitializers
|
|
= new (Context) CXXCtorInitializer*[NumInitializers];
|
|
for (unsigned i=0; i != NumInitializers; ++i) {
|
|
TypeSourceInfo *TInfo = 0;
|
|
bool IsBaseVirtual = false;
|
|
FieldDecl *Member = 0;
|
|
IndirectFieldDecl *IndirectMember = 0;
|
|
|
|
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);
|
|
bool IsWritten = Record[Idx++];
|
|
unsigned SourceOrderOrNumArrayIndices;
|
|
SmallVector<VarDecl *, 8> Indices;
|
|
if (IsWritten) {
|
|
SourceOrderOrNumArrayIndices = Record[Idx++];
|
|
} else {
|
|
SourceOrderOrNumArrayIndices = Record[Idx++];
|
|
Indices.reserve(SourceOrderOrNumArrayIndices);
|
|
for (unsigned i=0; i != SourceOrderOrNumArrayIndices; ++i)
|
|
Indices.push_back(ReadDeclAs<VarDecl>(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 (IsWritten) {
|
|
if (Member)
|
|
BOMInit = new (Context) CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc,
|
|
LParenLoc, Init, RParenLoc);
|
|
else
|
|
BOMInit = new (Context) CXXCtorInitializer(Context, IndirectMember,
|
|
MemberOrEllipsisLoc, LParenLoc,
|
|
Init, RParenLoc);
|
|
} else {
|
|
BOMInit = CXXCtorInitializer::Create(Context, Member, MemberOrEllipsisLoc,
|
|
LParenLoc, Init, RParenLoc,
|
|
Indices.data(), Indices.size());
|
|
}
|
|
|
|
if (IsWritten)
|
|
BOMInit->setSourceOrder(SourceOrderOrNumArrayIndices);
|
|
CtorInitializers[i] = BOMInit;
|
|
}
|
|
}
|
|
|
|
return std::make_pair(CtorInitializers, NumInitializers);
|
|
}
|
|
|
|
NestedNameSpecifier *
|
|
ASTReader::ReadNestedNameSpecifier(ModuleFile &F,
|
|
const RecordData &Record, unsigned &Idx) {
|
|
unsigned N = Record[Idx++];
|
|
NestedNameSpecifier *NNS = 0, *Prev = 0;
|
|
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 0;
|
|
|
|
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;
|
|
}
|
|
}
|
|
Prev = NNS;
|
|
}
|
|
return NNS;
|
|
}
|
|
|
|
NestedNameSpecifierLoc
|
|
ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record,
|
|
unsigned &Idx) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
/// \brief 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;
|
|
}
|
|
|
|
/// \brief 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);
|
|
}
|
|
|
|
/// \brief Read a floating-point value
|
|
llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, unsigned &Idx) {
|
|
return llvm::APFloat(ReadAPInt(Record, Idx));
|
|
}
|
|
|
|
// \brief 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;
|
|
}
|
|
|
|
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(Context, Decl);
|
|
}
|
|
|
|
DiagnosticBuilder ASTReader::Diag(unsigned DiagID) {
|
|
return Diag(SourceLocation(), DiagID);
|
|
}
|
|
|
|
DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) {
|
|
return Diags.Report(Loc, DiagID);
|
|
}
|
|
|
|
/// \brief Retrieve the identifier table associated with the
|
|
/// preprocessor.
|
|
IdentifierTable &ASTReader::getIdentifierTable() {
|
|
return PP.getIdentifierTable();
|
|
}
|
|
|
|
/// \brief Record that the given ID maps to the given switch-case
|
|
/// statement.
|
|
void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) {
|
|
assert((*CurrSwitchCaseStmts)[ID] == 0 &&
|
|
"Already have a SwitchCase with this ID");
|
|
(*CurrSwitchCaseStmts)[ID] = SC;
|
|
}
|
|
|
|
/// \brief Retrieve the switch-case statement with the given ID.
|
|
SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) {
|
|
assert((*CurrSwitchCaseStmts)[ID] != 0 && "No SwitchCase with this ID");
|
|
return (*CurrSwitchCaseStmts)[ID];
|
|
}
|
|
|
|
void ASTReader::ClearSwitchCaseIDs() {
|
|
CurrSwitchCaseStmts->clear();
|
|
}
|
|
|
|
void ASTReader::ReadComments() {
|
|
std::vector<RawComment *> Comments;
|
|
for (SmallVectorImpl<std::pair<llvm::BitstreamCursor,
|
|
serialization::ModuleFile *> >::iterator
|
|
I = CommentsCursors.begin(),
|
|
E = CommentsCursors.end();
|
|
I != E; ++I) {
|
|
llvm::BitstreamCursor &Cursor = I->first;
|
|
serialization::ModuleFile &F = *I->second;
|
|
SavedStreamPosition SavedPosition(Cursor);
|
|
|
|
RecordData Record;
|
|
while (true) {
|
|
unsigned Code = Cursor.ReadCode();
|
|
if (Code == llvm::bitc::END_BLOCK)
|
|
break;
|
|
|
|
if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
|
// No known subblocks, always skip them.
|
|
Cursor.ReadSubBlockID();
|
|
if (Cursor.SkipBlock()) {
|
|
Error("malformed block record in AST file");
|
|
return;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (Code == llvm::bitc::DEFINE_ABBREV) {
|
|
Cursor.ReadAbbrevRecord();
|
|
continue;
|
|
}
|
|
|
|
// Read a record.
|
|
Record.clear();
|
|
switch ((CommentRecordTypes) Cursor.ReadRecord(Code, Record)) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Context.Comments.addCommentsToFront(Comments);
|
|
}
|
|
|
|
void ASTReader::finishPendingActions() {
|
|
while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty() ||
|
|
!PendingMacroIDs.empty()) {
|
|
// If any identifiers with corresponding top-level declarations have
|
|
// been loaded, load those declarations now.
|
|
while (!PendingIdentifierInfos.empty()) {
|
|
SetGloballyVisibleDecls(PendingIdentifierInfos.front().II,
|
|
PendingIdentifierInfos.front().DeclIDs, true);
|
|
PendingIdentifierInfos.pop_front();
|
|
}
|
|
|
|
// Load pending declaration chains.
|
|
for (unsigned I = 0; I != PendingDeclChains.size(); ++I) {
|
|
loadPendingDeclChain(PendingDeclChains[I]);
|
|
PendingDeclChainsKnown.erase(PendingDeclChains[I]);
|
|
}
|
|
PendingDeclChains.clear();
|
|
|
|
// Load any pending macro definitions.
|
|
for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) {
|
|
// FIXME: std::move here
|
|
SmallVector<MacroID, 2> GlobalIDs = PendingMacroIDs.begin()[I].second;
|
|
MacroInfo *Hint = 0;
|
|
for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs;
|
|
++IDIdx) {
|
|
Hint = getMacro(GlobalIDs[IDIdx], Hint);
|
|
}
|
|
}
|
|
PendingMacroIDs.clear();
|
|
}
|
|
|
|
// 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 (llvm::SmallPtrSet<Decl *, 4>::iterator D = PendingDefinitions.begin(),
|
|
DEnd = PendingDefinitions.end();
|
|
D != DEnd; ++D) {
|
|
if (TagDecl *TD = dyn_cast<TagDecl>(*D)) {
|
|
if (const TagType *TagT = dyn_cast<TagType>(TD->TypeForDecl)) {
|
|
// Make sure that the TagType points at the definition.
|
|
const_cast<TagType*>(TagT)->decl = TD;
|
|
}
|
|
|
|
if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(*D)) {
|
|
for (CXXRecordDecl::redecl_iterator R = RD->redecls_begin(),
|
|
REnd = RD->redecls_end();
|
|
R != REnd; ++R)
|
|
cast<CXXRecordDecl>(*R)->DefinitionData = RD->DefinitionData;
|
|
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(*D)) {
|
|
// Make sure that the ObjCInterfaceType points at the definition.
|
|
const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl))
|
|
->Decl = ID;
|
|
|
|
for (ObjCInterfaceDecl::redecl_iterator R = ID->redecls_begin(),
|
|
REnd = ID->redecls_end();
|
|
R != REnd; ++R)
|
|
R->Data = ID->Data;
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(*D)) {
|
|
for (ObjCProtocolDecl::redecl_iterator R = PD->redecls_begin(),
|
|
REnd = PD->redecls_end();
|
|
R != REnd; ++R)
|
|
R->Data = PD->Data;
|
|
|
|
continue;
|
|
}
|
|
|
|
RedeclarableTemplateDecl *RTD
|
|
= cast<RedeclarableTemplateDecl>(*D)->getCanonicalDecl();
|
|
for (RedeclarableTemplateDecl::redecl_iterator R = RTD->redecls_begin(),
|
|
REnd = RTD->redecls_end();
|
|
R != REnd; ++R)
|
|
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.
|
|
for (PendingBodiesMap::iterator PB = PendingBodies.begin(),
|
|
PBEnd = PendingBodies.end();
|
|
PB != PBEnd; ++PB) {
|
|
if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) {
|
|
// FIXME: Check for =delete/=default?
|
|
// FIXME: Complain about ODR violations here?
|
|
if (!getContext().getLangOpts().Modules || !FD->hasBody())
|
|
FD->setLazyBody(PB->second);
|
|
continue;
|
|
}
|
|
|
|
ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first);
|
|
if (!getContext().getLangOpts().Modules || !MD->hasBody())
|
|
MD->setLazyBody(PB->second);
|
|
}
|
|
PendingBodies.clear();
|
|
}
|
|
|
|
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 &&
|
|
Consumer && !PassingDeclsToConsumer) {
|
|
// Guard variable to avoid recursively redoing the process of passing
|
|
// decls to consumer.
|
|
SaveAndRestore<bool> GuardPassingDeclsToConsumer(PassingDeclsToConsumer,
|
|
true);
|
|
|
|
while (!InterestingDecls.empty()) {
|
|
// We are not in recursive loading, so it's safe to pass the "interesting"
|
|
// decls to the consumer.
|
|
Decl *D = InterestingDecls.front();
|
|
InterestingDecls.pop_front();
|
|
PassInterestingDeclToConsumer(D);
|
|
}
|
|
}
|
|
}
|
|
|
|
ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context,
|
|
StringRef isysroot, bool DisableValidation,
|
|
bool AllowASTWithCompilerErrors)
|
|
: Listener(new PCHValidator(PP, *this)), DeserializationListener(0),
|
|
SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()),
|
|
Diags(PP.getDiagnostics()), SemaObj(0), PP(PP), Context(Context),
|
|
Consumer(0), ModuleMgr(PP.getFileManager()),
|
|
isysroot(isysroot), DisableValidation(DisableValidation),
|
|
AllowASTWithCompilerErrors(AllowASTWithCompilerErrors),
|
|
CurrentGeneration(0), CurrSwitchCaseStmts(&SwitchCaseStmts),
|
|
NumSLocEntriesRead(0), TotalNumSLocEntries(0),
|
|
NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0),
|
|
TotalNumMacros(0), NumSelectorsRead(0), NumMethodPoolEntriesRead(0),
|
|
NumMethodPoolMisses(0), TotalNumMethodPoolEntries(0),
|
|
NumLexicalDeclContextsRead(0), TotalLexicalDeclContexts(0),
|
|
NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0),
|
|
TotalModulesSizeInBits(0), NumCurrentElementsDeserializing(0),
|
|
PassingDeclsToConsumer(false),
|
|
NumCXXBaseSpecifiersLoaded(0)
|
|
{
|
|
SourceMgr.setExternalSLocEntrySource(this);
|
|
}
|
|
|
|
ASTReader::~ASTReader() {
|
|
for (DeclContextVisibleUpdatesPending::iterator
|
|
I = PendingVisibleUpdates.begin(),
|
|
E = PendingVisibleUpdates.end();
|
|
I != E; ++I) {
|
|
for (DeclContextVisibleUpdates::iterator J = I->second.begin(),
|
|
F = I->second.end();
|
|
J != F; ++J)
|
|
delete J->first;
|
|
}
|
|
}
|