Guy Benyei | 736104a | 2012-12-18 12:30:03 +0000 | [diff] [blame^] | 1 | //===--- ASTReader.cpp - AST File Reader ------------------------*- C++ -*-===//
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| 2 | //
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| 3 | // The LLVM Compiler Infrastructure
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| 4 | //
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| 5 | // This file is distributed under the University of Illinois Open Source
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| 6 | // License. See LICENSE.TXT for details.
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| 7 | //
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| 8 | //===----------------------------------------------------------------------===//
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| 9 | //
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| 10 | // This file defines the ASTReader class, which reads AST files.
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| 11 | //
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| 12 | //===----------------------------------------------------------------------===//
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| 13 |
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| 14 | #include "clang/Serialization/ASTReader.h"
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| 15 | #include "ASTCommon.h"
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| 16 | #include "ASTReaderInternals.h"
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| 17 | #include "clang/AST/ASTConsumer.h"
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| 18 | #include "clang/AST/ASTContext.h"
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| 19 | #include "clang/AST/DeclTemplate.h"
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| 20 | #include "clang/AST/Expr.h"
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| 21 | #include "clang/AST/ExprCXX.h"
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| 22 | #include "clang/AST/NestedNameSpecifier.h"
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| 23 | #include "clang/AST/Type.h"
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| 24 | #include "clang/AST/TypeLocVisitor.h"
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| 25 | #include "clang/Basic/FileManager.h"
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| 26 | #include "clang/Basic/FileSystemStatCache.h"
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| 27 | #include "clang/Basic/OnDiskHashTable.h"
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| 28 | #include "clang/Basic/SourceManager.h"
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| 29 | #include "clang/Basic/SourceManagerInternals.h"
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| 30 | #include "clang/Basic/TargetInfo.h"
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| 31 | #include "clang/Basic/TargetOptions.h"
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| 32 | #include "clang/Basic/Version.h"
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| 33 | #include "clang/Basic/VersionTuple.h"
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| 34 | #include "clang/Lex/HeaderSearch.h"
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| 35 | #include "clang/Lex/HeaderSearchOptions.h"
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| 36 | #include "clang/Lex/MacroInfo.h"
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| 37 | #include "clang/Lex/PreprocessingRecord.h"
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| 38 | #include "clang/Lex/Preprocessor.h"
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| 39 | #include "clang/Lex/PreprocessorOptions.h"
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| 40 | #include "clang/Sema/Scope.h"
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| 41 | #include "clang/Sema/Sema.h"
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| 42 | #include "clang/Serialization/ASTDeserializationListener.h"
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| 43 | #include "clang/Serialization/ModuleManager.h"
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| 44 | #include "clang/Serialization/SerializationDiagnostic.h"
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| 45 | #include "llvm/ADT/StringExtras.h"
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| 46 | #include "llvm/Bitcode/BitstreamReader.h"
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| 47 | #include "llvm/Support/ErrorHandling.h"
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| 48 | #include "llvm/Support/FileSystem.h"
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| 49 | #include "llvm/Support/MemoryBuffer.h"
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| 50 | #include "llvm/Support/Path.h"
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| 51 | #include "llvm/Support/SaveAndRestore.h"
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| 52 | #include "llvm/Support/system_error.h"
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| 53 | #include <algorithm>
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| 54 | #include <cstdio>
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| 55 | #include <iterator>
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| 56 |
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| 57 | using namespace clang;
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| 58 | using namespace clang::serialization;
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| 59 | using namespace clang::serialization::reader;
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| 60 |
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| 61 | //===----------------------------------------------------------------------===//
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| 62 | // PCH validator implementation
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| 63 | //===----------------------------------------------------------------------===//
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| 64 |
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| 65 | ASTReaderListener::~ASTReaderListener() {}
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| 66 |
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| 67 | /// \brief Compare the given set of language options against an existing set of
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| 68 | /// language options.
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| 69 | ///
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| 70 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine.
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| 71 | ///
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| 72 | /// \returns true if the languagae options mis-match, false otherwise.
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| 73 | static bool checkLanguageOptions(const LangOptions &LangOpts,
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| 74 | const LangOptions &ExistingLangOpts,
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| 75 | DiagnosticsEngine *Diags) {
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| 76 | #define LANGOPT(Name, Bits, Default, Description) \
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| 77 | if (ExistingLangOpts.Name != LangOpts.Name) { \
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| 78 | if (Diags) \
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| 79 | Diags->Report(diag::err_pch_langopt_mismatch) \
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| 80 | << Description << LangOpts.Name << ExistingLangOpts.Name; \
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| 81 | return true; \
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| 82 | }
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| 83 |
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| 84 | #define VALUE_LANGOPT(Name, Bits, Default, Description) \
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| 85 | if (ExistingLangOpts.Name != LangOpts.Name) { \
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| 86 | if (Diags) \
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| 87 | Diags->Report(diag::err_pch_langopt_value_mismatch) \
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| 88 | << Description; \
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| 89 | return true; \
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| 90 | }
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| 91 |
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| 92 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
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| 93 | if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \
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| 94 | if (Diags) \
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| 95 | Diags->Report(diag::err_pch_langopt_value_mismatch) \
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| 96 | << Description; \
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| 97 | return true; \
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| 98 | }
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| 99 |
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| 100 | #define BENIGN_LANGOPT(Name, Bits, Default, Description)
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| 101 | #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
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| 102 | #include "clang/Basic/LangOptions.def"
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| 103 |
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| 104 | if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) {
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| 105 | if (Diags)
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| 106 | Diags->Report(diag::err_pch_langopt_value_mismatch)
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| 107 | << "target Objective-C runtime";
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| 108 | return true;
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| 109 | }
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| 110 |
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| 111 | return false;
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| 112 | }
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| 113 |
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| 114 | /// \brief Compare the given set of target options against an existing set of
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| 115 | /// target options.
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| 116 | ///
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| 117 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine.
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| 118 | ///
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| 119 | /// \returns true if the target options mis-match, false otherwise.
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| 120 | static bool checkTargetOptions(const TargetOptions &TargetOpts,
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| 121 | const TargetOptions &ExistingTargetOpts,
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| 122 | DiagnosticsEngine *Diags) {
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| 123 | #define CHECK_TARGET_OPT(Field, Name) \
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| 124 | if (TargetOpts.Field != ExistingTargetOpts.Field) { \
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| 125 | if (Diags) \
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| 126 | Diags->Report(diag::err_pch_targetopt_mismatch) \
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| 127 | << Name << TargetOpts.Field << ExistingTargetOpts.Field; \
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| 128 | return true; \
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| 129 | }
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| 130 |
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| 131 | CHECK_TARGET_OPT(Triple, "target");
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| 132 | CHECK_TARGET_OPT(CPU, "target CPU");
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| 133 | CHECK_TARGET_OPT(ABI, "target ABI");
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| 134 | CHECK_TARGET_OPT(CXXABI, "target C++ ABI");
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| 135 | CHECK_TARGET_OPT(LinkerVersion, "target linker version");
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| 136 | #undef CHECK_TARGET_OPT
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| 137 |
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| 138 | // Compare feature sets.
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| 139 | SmallVector<StringRef, 4> ExistingFeatures(
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| 140 | ExistingTargetOpts.FeaturesAsWritten.begin(),
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| 141 | ExistingTargetOpts.FeaturesAsWritten.end());
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| 142 | SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(),
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| 143 | TargetOpts.FeaturesAsWritten.end());
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| 144 | std::sort(ExistingFeatures.begin(), ExistingFeatures.end());
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| 145 | std::sort(ReadFeatures.begin(), ReadFeatures.end());
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| 146 |
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| 147 | unsigned ExistingIdx = 0, ExistingN = ExistingFeatures.size();
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| 148 | unsigned ReadIdx = 0, ReadN = ReadFeatures.size();
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| 149 | while (ExistingIdx < ExistingN && ReadIdx < ReadN) {
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| 150 | if (ExistingFeatures[ExistingIdx] == ReadFeatures[ReadIdx]) {
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| 151 | ++ExistingIdx;
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| 152 | ++ReadIdx;
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| 153 | continue;
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| 154 | }
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| 155 |
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| 156 | if (ReadFeatures[ReadIdx] < ExistingFeatures[ExistingIdx]) {
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| 157 | if (Diags)
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| 158 | Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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| 159 | << false << ReadFeatures[ReadIdx];
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| 160 | return true;
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| 161 | }
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| 162 |
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| 163 | if (Diags)
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| 164 | Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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| 165 | << true << ExistingFeatures[ExistingIdx];
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| 166 | return true;
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| 167 | }
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| 168 |
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| 169 | if (ExistingIdx < ExistingN) {
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| 170 | if (Diags)
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| 171 | Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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| 172 | << true << ExistingFeatures[ExistingIdx];
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| 173 | return true;
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| 174 | }
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| 175 |
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| 176 | if (ReadIdx < ReadN) {
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| 177 | if (Diags)
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| 178 | Diags->Report(diag::err_pch_targetopt_feature_mismatch)
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| 179 | << false << ReadFeatures[ReadIdx];
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| 180 | return true;
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| 181 | }
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| 182 |
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| 183 | return false;
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| 184 | }
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| 185 |
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| 186 | bool
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| 187 | PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts,
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| 188 | bool Complain) {
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| 189 | const LangOptions &ExistingLangOpts = PP.getLangOpts();
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| 190 | return checkLanguageOptions(LangOpts, ExistingLangOpts,
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| 191 | Complain? &Reader.Diags : 0);
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| 192 | }
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| 193 |
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| 194 | bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts,
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| 195 | bool Complain) {
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| 196 | const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts();
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| 197 | return checkTargetOptions(TargetOpts, ExistingTargetOpts,
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| 198 | Complain? &Reader.Diags : 0);
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| 199 | }
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| 200 |
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| 201 | namespace {
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| 202 | typedef llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >
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| 203 | MacroDefinitionsMap;
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| 204 | }
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| 205 |
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| 206 | /// \brief Collect the macro definitions provided by the given preprocessor
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| 207 | /// options.
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| 208 | static void collectMacroDefinitions(const PreprocessorOptions &PPOpts,
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| 209 | MacroDefinitionsMap &Macros,
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| 210 | SmallVectorImpl<StringRef> *MacroNames = 0){
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| 211 | for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) {
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| 212 | StringRef Macro = PPOpts.Macros[I].first;
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| 213 | bool IsUndef = PPOpts.Macros[I].second;
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| 214 |
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| 215 | std::pair<StringRef, StringRef> MacroPair = Macro.split('=');
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| 216 | StringRef MacroName = MacroPair.first;
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| 217 | StringRef MacroBody = MacroPair.second;
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| 218 |
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| 219 | // For an #undef'd macro, we only care about the name.
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| 220 | if (IsUndef) {
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| 221 | if (MacroNames && !Macros.count(MacroName))
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| 222 | MacroNames->push_back(MacroName);
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| 223 |
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| 224 | Macros[MacroName] = std::make_pair("", true);
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| 225 | continue;
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| 226 | }
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| 227 |
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| 228 | // For a #define'd macro, figure out the actual definition.
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| 229 | if (MacroName.size() == Macro.size())
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| 230 | MacroBody = "1";
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| 231 | else {
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| 232 | // Note: GCC drops anything following an end-of-line character.
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| 233 | StringRef::size_type End = MacroBody.find_first_of("\n\r");
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| 234 | MacroBody = MacroBody.substr(0, End);
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| 235 | }
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| 236 |
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| 237 | if (MacroNames && !Macros.count(MacroName))
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| 238 | MacroNames->push_back(MacroName);
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| 239 | Macros[MacroName] = std::make_pair(MacroBody, false);
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| 240 | }
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| 241 | }
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| 242 |
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| 243 | /// \brief Check the preprocessor options deserialized from the control block
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| 244 | /// against the preprocessor options in an existing preprocessor.
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| 245 | ///
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| 246 | /// \param Diags If non-null, produce diagnostics for any mismatches incurred.
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| 247 | static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts,
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| 248 | const PreprocessorOptions &ExistingPPOpts,
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| 249 | DiagnosticsEngine *Diags,
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| 250 | FileManager &FileMgr,
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| 251 | std::string &SuggestedPredefines) {
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| 252 | // Check macro definitions.
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| 253 | MacroDefinitionsMap ASTFileMacros;
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| 254 | collectMacroDefinitions(PPOpts, ASTFileMacros);
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| 255 | MacroDefinitionsMap ExistingMacros;
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| 256 | SmallVector<StringRef, 4> ExistingMacroNames;
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| 257 | collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames);
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| 258 |
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| 259 | for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) {
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| 260 | // Dig out the macro definition in the existing preprocessor options.
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| 261 | StringRef MacroName = ExistingMacroNames[I];
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| 262 | std::pair<StringRef, bool> Existing = ExistingMacros[MacroName];
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| 263 |
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| 264 | // Check whether we know anything about this macro name or not.
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| 265 | llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >::iterator Known
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| 266 | = ASTFileMacros.find(MacroName);
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| 267 | if (Known == ASTFileMacros.end()) {
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| 268 | // FIXME: Check whether this identifier was referenced anywhere in the
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| 269 | // AST file. If so, we should reject the AST file. Unfortunately, this
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| 270 | // information isn't in the control block. What shall we do about it?
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| 271 |
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| 272 | if (Existing.second) {
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| 273 | SuggestedPredefines += "#undef ";
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| 274 | SuggestedPredefines += MacroName.str();
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| 275 | SuggestedPredefines += '\n';
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| 276 | } else {
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| 277 | SuggestedPredefines += "#define ";
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| 278 | SuggestedPredefines += MacroName.str();
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| 279 | SuggestedPredefines += ' ';
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| 280 | SuggestedPredefines += Existing.first.str();
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| 281 | SuggestedPredefines += '\n';
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| 282 | }
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| 283 | continue;
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| 284 | }
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| 285 |
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| 286 | // If the macro was defined in one but undef'd in the other, we have a
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| 287 | // conflict.
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| 288 | if (Existing.second != Known->second.second) {
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| 289 | if (Diags) {
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| 290 | Diags->Report(diag::err_pch_macro_def_undef)
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| 291 | << MacroName << Known->second.second;
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| 292 | }
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| 293 | return true;
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| 294 | }
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| 295 |
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| 296 | // If the macro was #undef'd in both, or if the macro bodies are identical,
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| 297 | // it's fine.
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| 298 | if (Existing.second || Existing.first == Known->second.first)
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| 299 | continue;
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| 300 |
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| 301 | // The macro bodies differ; complain.
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| 302 | if (Diags) {
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| 303 | Diags->Report(diag::err_pch_macro_def_conflict)
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| 304 | << MacroName << Known->second.first << Existing.first;
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| 305 | }
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| 306 | return true;
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| 307 | }
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| 308 |
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| 309 | // Check whether we're using predefines.
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| 310 | if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines) {
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| 311 | if (Diags) {
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| 312 | Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines;
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| 313 | }
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| 314 | return true;
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| 315 | }
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| 316 |
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| 317 | // Compute the #include and #include_macros lines we need.
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| 318 | for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) {
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| 319 | StringRef File = ExistingPPOpts.Includes[I];
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| 320 | if (File == ExistingPPOpts.ImplicitPCHInclude)
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| 321 | continue;
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| 322 |
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| 323 | if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File)
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| 324 | != PPOpts.Includes.end())
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| 325 | continue;
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| 326 |
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| 327 | SuggestedPredefines += "#include \"";
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| 328 | SuggestedPredefines +=
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| 329 | HeaderSearch::NormalizeDashIncludePath(File, FileMgr);
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| 330 | SuggestedPredefines += "\"\n";
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| 331 | }
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| 332 |
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| 333 | for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) {
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| 334 | StringRef File = ExistingPPOpts.MacroIncludes[I];
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| 335 | if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(),
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| 336 | File)
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| 337 | != PPOpts.MacroIncludes.end())
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| 338 | continue;
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| 339 |
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| 340 | SuggestedPredefines += "#__include_macros \"";
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| 341 | SuggestedPredefines +=
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| 342 | HeaderSearch::NormalizeDashIncludePath(File, FileMgr);
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| 343 | SuggestedPredefines += "\"\n##\n";
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| 344 | }
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| 345 |
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| 346 | return false;
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| 347 | }
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| 348 |
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| 349 | bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
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| 350 | bool Complain,
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| 351 | std::string &SuggestedPredefines) {
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| 352 | const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts();
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| 353 |
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| 354 | return checkPreprocessorOptions(PPOpts, ExistingPPOpts,
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| 355 | Complain? &Reader.Diags : 0,
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| 356 | PP.getFileManager(),
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| 357 | SuggestedPredefines);
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| 358 | }
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| 359 |
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| 360 | void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI,
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| 361 | unsigned ID) {
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| 362 | PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID);
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| 363 | ++NumHeaderInfos;
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| 364 | }
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| 365 |
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| 366 | void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) {
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| 367 | PP.setCounterValue(Value);
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| 368 | }
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| 369 |
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| 370 | //===----------------------------------------------------------------------===//
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| 371 | // AST reader implementation
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| 372 | //===----------------------------------------------------------------------===//
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| 373 |
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| 374 | void
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| 375 | ASTReader::setDeserializationListener(ASTDeserializationListener *Listener) {
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| 376 | DeserializationListener = Listener;
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| 377 | }
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| 378 |
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| 379 |
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| 380 |
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| 381 | unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) {
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| 382 | return serialization::ComputeHash(Sel);
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| 383 | }
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| 384 |
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| 385 |
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| 386 | std::pair<unsigned, unsigned>
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| 387 | ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
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| 388 | using namespace clang::io;
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| 389 | unsigned KeyLen = ReadUnalignedLE16(d);
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| 390 | unsigned DataLen = ReadUnalignedLE16(d);
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| 391 | return std::make_pair(KeyLen, DataLen);
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| 392 | }
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| 393 |
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| 394 | ASTSelectorLookupTrait::internal_key_type
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| 395 | ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
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| 396 | using namespace clang::io;
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| 397 | SelectorTable &SelTable = Reader.getContext().Selectors;
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| 398 | unsigned N = ReadUnalignedLE16(d);
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| 399 | IdentifierInfo *FirstII
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| 400 | = Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
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| 401 | if (N == 0)
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| 402 | return SelTable.getNullarySelector(FirstII);
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| 403 | else if (N == 1)
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| 404 | return SelTable.getUnarySelector(FirstII);
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| 405 |
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| 406 | SmallVector<IdentifierInfo *, 16> Args;
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| 407 | Args.push_back(FirstII);
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| 408 | for (unsigned I = 1; I != N; ++I)
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| 409 | Args.push_back(Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)));
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| 410 |
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| 411 | return SelTable.getSelector(N, Args.data());
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| 412 | }
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| 413 |
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| 414 | ASTSelectorLookupTrait::data_type
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| 415 | ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
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| 416 | unsigned DataLen) {
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| 417 | using namespace clang::io;
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| 418 |
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| 419 | data_type Result;
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| 420 |
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| 421 | Result.ID = Reader.getGlobalSelectorID(F, ReadUnalignedLE32(d));
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| 422 | unsigned NumInstanceMethods = ReadUnalignedLE16(d);
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| 423 | unsigned NumFactoryMethods = ReadUnalignedLE16(d);
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| 424 |
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| 425 | // Load instance methods
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| 426 | for (unsigned I = 0; I != NumInstanceMethods; ++I) {
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| 427 | if (ObjCMethodDecl *Method
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| 428 | = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d)))
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| 429 | Result.Instance.push_back(Method);
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| 430 | }
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| 431 |
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| 432 | // Load factory methods
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| 433 | for (unsigned I = 0; I != NumFactoryMethods; ++I) {
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| 434 | if (ObjCMethodDecl *Method
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| 435 | = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d)))
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| 436 | Result.Factory.push_back(Method);
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| 437 | }
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| 438 |
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| 439 | return Result;
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| 440 | }
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| 441 |
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| 442 | unsigned ASTIdentifierLookupTrait::ComputeHash(const internal_key_type& a) {
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| 443 | return llvm::HashString(StringRef(a.first, a.second));
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| 444 | }
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| 445 |
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| 446 | std::pair<unsigned, unsigned>
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| 447 | ASTIdentifierLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
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| 448 | using namespace clang::io;
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| 449 | unsigned DataLen = ReadUnalignedLE16(d);
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| 450 | unsigned KeyLen = ReadUnalignedLE16(d);
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| 451 | return std::make_pair(KeyLen, DataLen);
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| 452 | }
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| 453 |
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| 454 | std::pair<const char*, unsigned>
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| 455 | ASTIdentifierLookupTrait::ReadKey(const unsigned char* d, unsigned n) {
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| 456 | assert(n >= 2 && d[n-1] == '\0');
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| 457 | return std::make_pair((const char*) d, n-1);
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| 458 | }
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| 459 |
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| 460 | IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
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| 461 | const unsigned char* d,
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| 462 | unsigned DataLen) {
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| 463 | using namespace clang::io;
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| 464 | unsigned RawID = ReadUnalignedLE32(d);
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| 465 | bool IsInteresting = RawID & 0x01;
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| 466 |
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| 467 | // Wipe out the "is interesting" bit.
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| 468 | RawID = RawID >> 1;
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| 469 |
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| 470 | IdentID ID = Reader.getGlobalIdentifierID(F, RawID);
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| 471 | if (!IsInteresting) {
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| 472 | // For uninteresting identifiers, just build the IdentifierInfo
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| 473 | // and associate it with the persistent ID.
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| 474 | IdentifierInfo *II = KnownII;
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| 475 | if (!II) {
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| 476 | II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second));
|
| 477 | KnownII = II;
|
| 478 | }
|
| 479 | Reader.SetIdentifierInfo(ID, II);
|
| 480 | II->setIsFromAST();
|
| 481 | Reader.markIdentifierUpToDate(II);
|
| 482 | return II;
|
| 483 | }
|
| 484 |
|
| 485 | unsigned ObjCOrBuiltinID = ReadUnalignedLE16(d);
|
| 486 | unsigned Bits = ReadUnalignedLE16(d);
|
| 487 | bool CPlusPlusOperatorKeyword = Bits & 0x01;
|
| 488 | Bits >>= 1;
|
| 489 | bool HasRevertedTokenIDToIdentifier = Bits & 0x01;
|
| 490 | Bits >>= 1;
|
| 491 | bool Poisoned = Bits & 0x01;
|
| 492 | Bits >>= 1;
|
| 493 | bool ExtensionToken = Bits & 0x01;
|
| 494 | Bits >>= 1;
|
| 495 | bool hadMacroDefinition = Bits & 0x01;
|
| 496 | Bits >>= 1;
|
| 497 |
|
| 498 | assert(Bits == 0 && "Extra bits in the identifier?");
|
| 499 | DataLen -= 8;
|
| 500 |
|
| 501 | // Build the IdentifierInfo itself and link the identifier ID with
|
| 502 | // the new IdentifierInfo.
|
| 503 | IdentifierInfo *II = KnownII;
|
| 504 | if (!II) {
|
| 505 | II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second));
|
| 506 | KnownII = II;
|
| 507 | }
|
| 508 | Reader.markIdentifierUpToDate(II);
|
| 509 | II->setIsFromAST();
|
| 510 |
|
| 511 | // Set or check the various bits in the IdentifierInfo structure.
|
| 512 | // Token IDs are read-only.
|
| 513 | if (HasRevertedTokenIDToIdentifier)
|
| 514 | II->RevertTokenIDToIdentifier();
|
| 515 | II->setObjCOrBuiltinID(ObjCOrBuiltinID);
|
| 516 | assert(II->isExtensionToken() == ExtensionToken &&
|
| 517 | "Incorrect extension token flag");
|
| 518 | (void)ExtensionToken;
|
| 519 | if (Poisoned)
|
| 520 | II->setIsPoisoned(true);
|
| 521 | assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword &&
|
| 522 | "Incorrect C++ operator keyword flag");
|
| 523 | (void)CPlusPlusOperatorKeyword;
|
| 524 |
|
| 525 | // If this identifier is a macro, deserialize the macro
|
| 526 | // definition.
|
| 527 | if (hadMacroDefinition) {
|
| 528 | SmallVector<MacroID, 4> MacroIDs;
|
| 529 | while (uint32_t LocalID = ReadUnalignedLE32(d)) {
|
| 530 | MacroIDs.push_back(Reader.getGlobalMacroID(F, LocalID));
|
| 531 | DataLen -= 4;
|
| 532 | }
|
| 533 | DataLen -= 4;
|
| 534 | Reader.setIdentifierIsMacro(II, MacroIDs);
|
| 535 | }
|
| 536 |
|
| 537 | Reader.SetIdentifierInfo(ID, II);
|
| 538 |
|
| 539 | // Read all of the declarations visible at global scope with this
|
| 540 | // name.
|
| 541 | if (DataLen > 0) {
|
| 542 | SmallVector<uint32_t, 4> DeclIDs;
|
| 543 | for (; DataLen > 0; DataLen -= 4)
|
| 544 | DeclIDs.push_back(Reader.getGlobalDeclID(F, ReadUnalignedLE32(d)));
|
| 545 | Reader.SetGloballyVisibleDecls(II, DeclIDs);
|
| 546 | }
|
| 547 |
|
| 548 | return II;
|
| 549 | }
|
| 550 |
|
| 551 | unsigned
|
| 552 | ASTDeclContextNameLookupTrait::ComputeHash(const DeclNameKey &Key) const {
|
| 553 | llvm::FoldingSetNodeID ID;
|
| 554 | ID.AddInteger(Key.Kind);
|
| 555 |
|
| 556 | switch (Key.Kind) {
|
| 557 | case DeclarationName::Identifier:
|
| 558 | case DeclarationName::CXXLiteralOperatorName:
|
| 559 | ID.AddString(((IdentifierInfo*)Key.Data)->getName());
|
| 560 | break;
|
| 561 | case DeclarationName::ObjCZeroArgSelector:
|
| 562 | case DeclarationName::ObjCOneArgSelector:
|
| 563 | case DeclarationName::ObjCMultiArgSelector:
|
| 564 | ID.AddInteger(serialization::ComputeHash(Selector(Key.Data)));
|
| 565 | break;
|
| 566 | case DeclarationName::CXXOperatorName:
|
| 567 | ID.AddInteger((OverloadedOperatorKind)Key.Data);
|
| 568 | break;
|
| 569 | case DeclarationName::CXXConstructorName:
|
| 570 | case DeclarationName::CXXDestructorName:
|
| 571 | case DeclarationName::CXXConversionFunctionName:
|
| 572 | case DeclarationName::CXXUsingDirective:
|
| 573 | break;
|
| 574 | }
|
| 575 |
|
| 576 | return ID.ComputeHash();
|
| 577 | }
|
| 578 |
|
| 579 | ASTDeclContextNameLookupTrait::internal_key_type
|
| 580 | ASTDeclContextNameLookupTrait::GetInternalKey(
|
| 581 | const external_key_type& Name) const {
|
| 582 | DeclNameKey Key;
|
| 583 | Key.Kind = Name.getNameKind();
|
| 584 | switch (Name.getNameKind()) {
|
| 585 | case DeclarationName::Identifier:
|
| 586 | Key.Data = (uint64_t)Name.getAsIdentifierInfo();
|
| 587 | break;
|
| 588 | case DeclarationName::ObjCZeroArgSelector:
|
| 589 | case DeclarationName::ObjCOneArgSelector:
|
| 590 | case DeclarationName::ObjCMultiArgSelector:
|
| 591 | Key.Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr();
|
| 592 | break;
|
| 593 | case DeclarationName::CXXOperatorName:
|
| 594 | Key.Data = Name.getCXXOverloadedOperator();
|
| 595 | break;
|
| 596 | case DeclarationName::CXXLiteralOperatorName:
|
| 597 | Key.Data = (uint64_t)Name.getCXXLiteralIdentifier();
|
| 598 | break;
|
| 599 | case DeclarationName::CXXConstructorName:
|
| 600 | case DeclarationName::CXXDestructorName:
|
| 601 | case DeclarationName::CXXConversionFunctionName:
|
| 602 | case DeclarationName::CXXUsingDirective:
|
| 603 | Key.Data = 0;
|
| 604 | break;
|
| 605 | }
|
| 606 |
|
| 607 | return Key;
|
| 608 | }
|
| 609 |
|
| 610 | std::pair<unsigned, unsigned>
|
| 611 | ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
|
| 612 | using namespace clang::io;
|
| 613 | unsigned KeyLen = ReadUnalignedLE16(d);
|
| 614 | unsigned DataLen = ReadUnalignedLE16(d);
|
| 615 | return std::make_pair(KeyLen, DataLen);
|
| 616 | }
|
| 617 |
|
| 618 | ASTDeclContextNameLookupTrait::internal_key_type
|
| 619 | ASTDeclContextNameLookupTrait::ReadKey(const unsigned char* d, unsigned) {
|
| 620 | using namespace clang::io;
|
| 621 |
|
| 622 | DeclNameKey Key;
|
| 623 | Key.Kind = (DeclarationName::NameKind)*d++;
|
| 624 | switch (Key.Kind) {
|
| 625 | case DeclarationName::Identifier:
|
| 626 | Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
|
| 627 | break;
|
| 628 | case DeclarationName::ObjCZeroArgSelector:
|
| 629 | case DeclarationName::ObjCOneArgSelector:
|
| 630 | case DeclarationName::ObjCMultiArgSelector:
|
| 631 | Key.Data =
|
| 632 | (uint64_t)Reader.getLocalSelector(F, ReadUnalignedLE32(d))
|
| 633 | .getAsOpaquePtr();
|
| 634 | break;
|
| 635 | case DeclarationName::CXXOperatorName:
|
| 636 | Key.Data = *d++; // OverloadedOperatorKind
|
| 637 | break;
|
| 638 | case DeclarationName::CXXLiteralOperatorName:
|
| 639 | Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
|
| 640 | break;
|
| 641 | case DeclarationName::CXXConstructorName:
|
| 642 | case DeclarationName::CXXDestructorName:
|
| 643 | case DeclarationName::CXXConversionFunctionName:
|
| 644 | case DeclarationName::CXXUsingDirective:
|
| 645 | Key.Data = 0;
|
| 646 | break;
|
| 647 | }
|
| 648 |
|
| 649 | return Key;
|
| 650 | }
|
| 651 |
|
| 652 | ASTDeclContextNameLookupTrait::data_type
|
| 653 | ASTDeclContextNameLookupTrait::ReadData(internal_key_type,
|
| 654 | const unsigned char* d,
|
| 655 | unsigned DataLen) {
|
| 656 | using namespace clang::io;
|
| 657 | unsigned NumDecls = ReadUnalignedLE16(d);
|
| 658 | LE32DeclID *Start = (LE32DeclID *)d;
|
| 659 | return std::make_pair(Start, Start + NumDecls);
|
| 660 | }
|
| 661 |
|
| 662 | bool ASTReader::ReadDeclContextStorage(ModuleFile &M,
|
| 663 | llvm::BitstreamCursor &Cursor,
|
| 664 | const std::pair<uint64_t, uint64_t> &Offsets,
|
| 665 | DeclContextInfo &Info) {
|
| 666 | SavedStreamPosition SavedPosition(Cursor);
|
| 667 | // First the lexical decls.
|
| 668 | if (Offsets.first != 0) {
|
| 669 | Cursor.JumpToBit(Offsets.first);
|
| 670 |
|
| 671 | RecordData Record;
|
| 672 | const char *Blob;
|
| 673 | unsigned BlobLen;
|
| 674 | unsigned Code = Cursor.ReadCode();
|
| 675 | unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
|
| 676 | if (RecCode != DECL_CONTEXT_LEXICAL) {
|
| 677 | Error("Expected lexical block");
|
| 678 | return true;
|
| 679 | }
|
| 680 |
|
| 681 | Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair*>(Blob);
|
| 682 | Info.NumLexicalDecls = BlobLen / sizeof(KindDeclIDPair);
|
| 683 | }
|
| 684 |
|
| 685 | // Now the lookup table.
|
| 686 | if (Offsets.second != 0) {
|
| 687 | Cursor.JumpToBit(Offsets.second);
|
| 688 |
|
| 689 | RecordData Record;
|
| 690 | const char *Blob;
|
| 691 | unsigned BlobLen;
|
| 692 | unsigned Code = Cursor.ReadCode();
|
| 693 | unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
|
| 694 | if (RecCode != DECL_CONTEXT_VISIBLE) {
|
| 695 | Error("Expected visible lookup table block");
|
| 696 | return true;
|
| 697 | }
|
| 698 | Info.NameLookupTableData
|
| 699 | = ASTDeclContextNameLookupTable::Create(
|
| 700 | (const unsigned char *)Blob + Record[0],
|
| 701 | (const unsigned char *)Blob,
|
| 702 | ASTDeclContextNameLookupTrait(*this, M));
|
| 703 | }
|
| 704 |
|
| 705 | return false;
|
| 706 | }
|
| 707 |
|
| 708 | void ASTReader::Error(StringRef Msg) {
|
| 709 | Error(diag::err_fe_pch_malformed, Msg);
|
| 710 | }
|
| 711 |
|
| 712 | void ASTReader::Error(unsigned DiagID,
|
| 713 | StringRef Arg1, StringRef Arg2) {
|
| 714 | if (Diags.isDiagnosticInFlight())
|
| 715 | Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2);
|
| 716 | else
|
| 717 | Diag(DiagID) << Arg1 << Arg2;
|
| 718 | }
|
| 719 |
|
| 720 | //===----------------------------------------------------------------------===//
|
| 721 | // Source Manager Deserialization
|
| 722 | //===----------------------------------------------------------------------===//
|
| 723 |
|
| 724 | /// \brief Read the line table in the source manager block.
|
| 725 | /// \returns true if there was an error.
|
| 726 | bool ASTReader::ParseLineTable(ModuleFile &F,
|
| 727 | SmallVectorImpl<uint64_t> &Record) {
|
| 728 | unsigned Idx = 0;
|
| 729 | LineTableInfo &LineTable = SourceMgr.getLineTable();
|
| 730 |
|
| 731 | // Parse the file names
|
| 732 | std::map<int, int> FileIDs;
|
| 733 | for (int I = 0, N = Record[Idx++]; I != N; ++I) {
|
| 734 | // Extract the file name
|
| 735 | unsigned FilenameLen = Record[Idx++];
|
| 736 | std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen);
|
| 737 | Idx += FilenameLen;
|
| 738 | MaybeAddSystemRootToFilename(F, Filename);
|
| 739 | FileIDs[I] = LineTable.getLineTableFilenameID(Filename);
|
| 740 | }
|
| 741 |
|
| 742 | // Parse the line entries
|
| 743 | std::vector<LineEntry> Entries;
|
| 744 | while (Idx < Record.size()) {
|
| 745 | int FID = Record[Idx++];
|
| 746 | assert(FID >= 0 && "Serialized line entries for non-local file.");
|
| 747 | // Remap FileID from 1-based old view.
|
| 748 | FID += F.SLocEntryBaseID - 1;
|
| 749 |
|
| 750 | // Extract the line entries
|
| 751 | unsigned NumEntries = Record[Idx++];
|
| 752 | assert(NumEntries && "Numentries is 00000");
|
| 753 | Entries.clear();
|
| 754 | Entries.reserve(NumEntries);
|
| 755 | for (unsigned I = 0; I != NumEntries; ++I) {
|
| 756 | unsigned FileOffset = Record[Idx++];
|
| 757 | unsigned LineNo = Record[Idx++];
|
| 758 | int FilenameID = FileIDs[Record[Idx++]];
|
| 759 | SrcMgr::CharacteristicKind FileKind
|
| 760 | = (SrcMgr::CharacteristicKind)Record[Idx++];
|
| 761 | unsigned IncludeOffset = Record[Idx++];
|
| 762 | Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID,
|
| 763 | FileKind, IncludeOffset));
|
| 764 | }
|
| 765 | LineTable.AddEntry(FileID::get(FID), Entries);
|
| 766 | }
|
| 767 |
|
| 768 | return false;
|
| 769 | }
|
| 770 |
|
| 771 | /// \brief Read a source manager block
|
| 772 | bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) {
|
| 773 | using namespace SrcMgr;
|
| 774 |
|
| 775 | llvm::BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor;
|
| 776 |
|
| 777 | // Set the source-location entry cursor to the current position in
|
| 778 | // the stream. This cursor will be used to read the contents of the
|
| 779 | // source manager block initially, and then lazily read
|
| 780 | // source-location entries as needed.
|
| 781 | SLocEntryCursor = F.Stream;
|
| 782 |
|
| 783 | // The stream itself is going to skip over the source manager block.
|
| 784 | if (F.Stream.SkipBlock()) {
|
| 785 | Error("malformed block record in AST file");
|
| 786 | return true;
|
| 787 | }
|
| 788 |
|
| 789 | // Enter the source manager block.
|
| 790 | if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) {
|
| 791 | Error("malformed source manager block record in AST file");
|
| 792 | return true;
|
| 793 | }
|
| 794 |
|
| 795 | RecordData Record;
|
| 796 | while (true) {
|
| 797 | unsigned Code = SLocEntryCursor.ReadCode();
|
| 798 | if (Code == llvm::bitc::END_BLOCK) {
|
| 799 | if (SLocEntryCursor.ReadBlockEnd()) {
|
| 800 | Error("error at end of Source Manager block in AST file");
|
| 801 | return true;
|
| 802 | }
|
| 803 | return false;
|
| 804 | }
|
| 805 |
|
| 806 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 807 | // No known subblocks, always skip them.
|
| 808 | SLocEntryCursor.ReadSubBlockID();
|
| 809 | if (SLocEntryCursor.SkipBlock()) {
|
| 810 | Error("malformed block record in AST file");
|
| 811 | return true;
|
| 812 | }
|
| 813 | continue;
|
| 814 | }
|
| 815 |
|
| 816 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 817 | SLocEntryCursor.ReadAbbrevRecord();
|
| 818 | continue;
|
| 819 | }
|
| 820 |
|
| 821 | // Read a record.
|
| 822 | const char *BlobStart;
|
| 823 | unsigned BlobLen;
|
| 824 | Record.clear();
|
| 825 | switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
| 826 | default: // Default behavior: ignore.
|
| 827 | break;
|
| 828 |
|
| 829 | case SM_SLOC_FILE_ENTRY:
|
| 830 | case SM_SLOC_BUFFER_ENTRY:
|
| 831 | case SM_SLOC_EXPANSION_ENTRY:
|
| 832 | // Once we hit one of the source location entries, we're done.
|
| 833 | return false;
|
| 834 | }
|
| 835 | }
|
| 836 | }
|
| 837 |
|
| 838 | /// \brief If a header file is not found at the path that we expect it to be
|
| 839 | /// and the PCH file was moved from its original location, try to resolve the
|
| 840 | /// file by assuming that header+PCH were moved together and the header is in
|
| 841 | /// the same place relative to the PCH.
|
| 842 | static std::string
|
| 843 | resolveFileRelativeToOriginalDir(const std::string &Filename,
|
| 844 | const std::string &OriginalDir,
|
| 845 | const std::string &CurrDir) {
|
| 846 | assert(OriginalDir != CurrDir &&
|
| 847 | "No point trying to resolve the file if the PCH dir didn't change");
|
| 848 | using namespace llvm::sys;
|
| 849 | SmallString<128> filePath(Filename);
|
| 850 | fs::make_absolute(filePath);
|
| 851 | assert(path::is_absolute(OriginalDir));
|
| 852 | SmallString<128> currPCHPath(CurrDir);
|
| 853 |
|
| 854 | path::const_iterator fileDirI = path::begin(path::parent_path(filePath)),
|
| 855 | fileDirE = path::end(path::parent_path(filePath));
|
| 856 | path::const_iterator origDirI = path::begin(OriginalDir),
|
| 857 | origDirE = path::end(OriginalDir);
|
| 858 | // Skip the common path components from filePath and OriginalDir.
|
| 859 | while (fileDirI != fileDirE && origDirI != origDirE &&
|
| 860 | *fileDirI == *origDirI) {
|
| 861 | ++fileDirI;
|
| 862 | ++origDirI;
|
| 863 | }
|
| 864 | for (; origDirI != origDirE; ++origDirI)
|
| 865 | path::append(currPCHPath, "..");
|
| 866 | path::append(currPCHPath, fileDirI, fileDirE);
|
| 867 | path::append(currPCHPath, path::filename(Filename));
|
| 868 | return currPCHPath.str();
|
| 869 | }
|
| 870 |
|
| 871 | bool ASTReader::ReadSLocEntry(int ID) {
|
| 872 | if (ID == 0)
|
| 873 | return false;
|
| 874 |
|
| 875 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) {
|
| 876 | Error("source location entry ID out-of-range for AST file");
|
| 877 | return true;
|
| 878 | }
|
| 879 |
|
| 880 | ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second;
|
| 881 | F->SLocEntryCursor.JumpToBit(F->SLocEntryOffsets[ID - F->SLocEntryBaseID]);
|
| 882 | llvm::BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor;
|
| 883 | unsigned BaseOffset = F->SLocEntryBaseOffset;
|
| 884 |
|
| 885 | ++NumSLocEntriesRead;
|
| 886 | unsigned Code = SLocEntryCursor.ReadCode();
|
| 887 | if (Code == llvm::bitc::END_BLOCK ||
|
| 888 | Code == llvm::bitc::ENTER_SUBBLOCK ||
|
| 889 | Code == llvm::bitc::DEFINE_ABBREV) {
|
| 890 | Error("incorrectly-formatted source location entry in AST file");
|
| 891 | return true;
|
| 892 | }
|
| 893 |
|
| 894 | RecordData Record;
|
| 895 | const char *BlobStart;
|
| 896 | unsigned BlobLen;
|
| 897 | switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
| 898 | default:
|
| 899 | Error("incorrectly-formatted source location entry in AST file");
|
| 900 | return true;
|
| 901 |
|
| 902 | case SM_SLOC_FILE_ENTRY: {
|
| 903 | // We will detect whether a file changed and return 'Failure' for it, but
|
| 904 | // we will also try to fail gracefully by setting up the SLocEntry.
|
| 905 | unsigned InputID = Record[4];
|
| 906 | InputFile IF = getInputFile(*F, InputID);
|
| 907 | const FileEntry *File = IF.getPointer();
|
| 908 | bool OverriddenBuffer = IF.getInt();
|
| 909 |
|
| 910 | if (!IF.getPointer())
|
| 911 | return true;
|
| 912 |
|
| 913 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]);
|
| 914 | if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) {
|
| 915 | // This is the module's main file.
|
| 916 | IncludeLoc = getImportLocation(F);
|
| 917 | }
|
| 918 | SrcMgr::CharacteristicKind
|
| 919 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2];
|
| 920 | FileID FID = SourceMgr.createFileID(File, IncludeLoc, FileCharacter,
|
| 921 | ID, BaseOffset + Record[0]);
|
| 922 | SrcMgr::FileInfo &FileInfo =
|
| 923 | const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile());
|
| 924 | FileInfo.NumCreatedFIDs = Record[5];
|
| 925 | if (Record[3])
|
| 926 | FileInfo.setHasLineDirectives();
|
| 927 |
|
| 928 | const DeclID *FirstDecl = F->FileSortedDecls + Record[6];
|
| 929 | unsigned NumFileDecls = Record[7];
|
| 930 | if (NumFileDecls) {
|
| 931 | assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?");
|
| 932 | FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl,
|
| 933 | NumFileDecls));
|
| 934 | }
|
| 935 |
|
| 936 | const SrcMgr::ContentCache *ContentCache
|
| 937 | = SourceMgr.getOrCreateContentCache(File,
|
| 938 | /*isSystemFile=*/FileCharacter != SrcMgr::C_User);
|
| 939 | if (OverriddenBuffer && !ContentCache->BufferOverridden &&
|
| 940 | ContentCache->ContentsEntry == ContentCache->OrigEntry) {
|
| 941 | unsigned Code = SLocEntryCursor.ReadCode();
|
| 942 | Record.clear();
|
| 943 | unsigned RecCode
|
| 944 | = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
|
| 945 |
|
| 946 | if (RecCode != SM_SLOC_BUFFER_BLOB) {
|
| 947 | Error("AST record has invalid code");
|
| 948 | return true;
|
| 949 | }
|
| 950 |
|
| 951 | llvm::MemoryBuffer *Buffer
|
| 952 | = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1),
|
| 953 | File->getName());
|
| 954 | SourceMgr.overrideFileContents(File, Buffer);
|
| 955 | }
|
| 956 |
|
| 957 | break;
|
| 958 | }
|
| 959 |
|
| 960 | case SM_SLOC_BUFFER_ENTRY: {
|
| 961 | const char *Name = BlobStart;
|
| 962 | unsigned Offset = Record[0];
|
| 963 | SrcMgr::CharacteristicKind
|
| 964 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2];
|
| 965 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]);
|
| 966 | if (IncludeLoc.isInvalid() && F->Kind == MK_Module) {
|
| 967 | IncludeLoc = getImportLocation(F);
|
| 968 | }
|
| 969 | unsigned Code = SLocEntryCursor.ReadCode();
|
| 970 | Record.clear();
|
| 971 | unsigned RecCode
|
| 972 | = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
|
| 973 |
|
| 974 | if (RecCode != SM_SLOC_BUFFER_BLOB) {
|
| 975 | Error("AST record has invalid code");
|
| 976 | return true;
|
| 977 | }
|
| 978 |
|
| 979 | llvm::MemoryBuffer *Buffer
|
| 980 | = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1),
|
| 981 | Name);
|
| 982 | SourceMgr.createFileIDForMemBuffer(Buffer, FileCharacter, ID,
|
| 983 | BaseOffset + Offset, IncludeLoc);
|
| 984 | break;
|
| 985 | }
|
| 986 |
|
| 987 | case SM_SLOC_EXPANSION_ENTRY: {
|
| 988 | SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]);
|
| 989 | SourceMgr.createExpansionLoc(SpellingLoc,
|
| 990 | ReadSourceLocation(*F, Record[2]),
|
| 991 | ReadSourceLocation(*F, Record[3]),
|
| 992 | Record[4],
|
| 993 | ID,
|
| 994 | BaseOffset + Record[0]);
|
| 995 | break;
|
| 996 | }
|
| 997 | }
|
| 998 |
|
| 999 | return false;
|
| 1000 | }
|
| 1001 |
|
| 1002 | std::pair<SourceLocation, StringRef> ASTReader::getModuleImportLoc(int ID) {
|
| 1003 | if (ID == 0)
|
| 1004 | return std::make_pair(SourceLocation(), "");
|
| 1005 |
|
| 1006 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) {
|
| 1007 | Error("source location entry ID out-of-range for AST file");
|
| 1008 | return std::make_pair(SourceLocation(), "");
|
| 1009 | }
|
| 1010 |
|
| 1011 | // Find which module file this entry lands in.
|
| 1012 | ModuleFile *M = GlobalSLocEntryMap.find(-ID)->second;
|
| 1013 | if (M->Kind != MK_Module)
|
| 1014 | return std::make_pair(SourceLocation(), "");
|
| 1015 |
|
| 1016 | // FIXME: Can we map this down to a particular submodule? That would be
|
| 1017 | // ideal.
|
| 1018 | return std::make_pair(M->ImportLoc, llvm::sys::path::stem(M->FileName));
|
| 1019 | }
|
| 1020 |
|
| 1021 | /// \brief Find the location where the module F is imported.
|
| 1022 | SourceLocation ASTReader::getImportLocation(ModuleFile *F) {
|
| 1023 | if (F->ImportLoc.isValid())
|
| 1024 | return F->ImportLoc;
|
| 1025 |
|
| 1026 | // Otherwise we have a PCH. It's considered to be "imported" at the first
|
| 1027 | // location of its includer.
|
| 1028 | if (F->ImportedBy.empty() || !F->ImportedBy[0]) {
|
| 1029 | // Main file is the importer. We assume that it is the first entry in the
|
| 1030 | // entry table. We can't ask the manager, because at the time of PCH loading
|
| 1031 | // the main file entry doesn't exist yet.
|
| 1032 | // The very first entry is the invalid instantiation loc, which takes up
|
| 1033 | // offsets 0 and 1.
|
| 1034 | return SourceLocation::getFromRawEncoding(2U);
|
| 1035 | }
|
| 1036 | //return F->Loaders[0]->FirstLoc;
|
| 1037 | return F->ImportedBy[0]->FirstLoc;
|
| 1038 | }
|
| 1039 |
|
| 1040 | /// ReadBlockAbbrevs - Enter a subblock of the specified BlockID with the
|
| 1041 | /// specified cursor. Read the abbreviations that are at the top of the block
|
| 1042 | /// and then leave the cursor pointing into the block.
|
| 1043 | bool ASTReader::ReadBlockAbbrevs(llvm::BitstreamCursor &Cursor,
|
| 1044 | unsigned BlockID) {
|
| 1045 | if (Cursor.EnterSubBlock(BlockID)) {
|
| 1046 | Error("malformed block record in AST file");
|
| 1047 | return Failure;
|
| 1048 | }
|
| 1049 |
|
| 1050 | while (true) {
|
| 1051 | uint64_t Offset = Cursor.GetCurrentBitNo();
|
| 1052 | unsigned Code = Cursor.ReadCode();
|
| 1053 |
|
| 1054 | // We expect all abbrevs to be at the start of the block.
|
| 1055 | if (Code != llvm::bitc::DEFINE_ABBREV) {
|
| 1056 | Cursor.JumpToBit(Offset);
|
| 1057 | return false;
|
| 1058 | }
|
| 1059 | Cursor.ReadAbbrevRecord();
|
| 1060 | }
|
| 1061 | }
|
| 1062 |
|
| 1063 | void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset,
|
| 1064 | MacroInfo *Hint) {
|
| 1065 | llvm::BitstreamCursor &Stream = F.MacroCursor;
|
| 1066 |
|
| 1067 | // Keep track of where we are in the stream, then jump back there
|
| 1068 | // after reading this macro.
|
| 1069 | SavedStreamPosition SavedPosition(Stream);
|
| 1070 |
|
| 1071 | Stream.JumpToBit(Offset);
|
| 1072 | RecordData Record;
|
| 1073 | SmallVector<IdentifierInfo*, 16> MacroArgs;
|
| 1074 | MacroInfo *Macro = 0;
|
| 1075 |
|
| 1076 | // RAII object to add the loaded macro information once we're done
|
| 1077 | // adding tokens.
|
| 1078 | struct AddLoadedMacroInfoRAII {
|
| 1079 | Preprocessor &PP;
|
| 1080 | MacroInfo *Hint;
|
| 1081 | MacroInfo *MI;
|
| 1082 | IdentifierInfo *II;
|
| 1083 |
|
| 1084 | AddLoadedMacroInfoRAII(Preprocessor &PP, MacroInfo *Hint)
|
| 1085 | : PP(PP), Hint(Hint), MI(), II() { }
|
| 1086 | ~AddLoadedMacroInfoRAII( ) {
|
| 1087 | if (MI) {
|
| 1088 | // Finally, install the macro.
|
| 1089 | PP.addLoadedMacroInfo(II, MI, Hint);
|
| 1090 | }
|
| 1091 | }
|
| 1092 | } AddLoadedMacroInfo(PP, Hint);
|
| 1093 |
|
| 1094 | while (true) {
|
| 1095 | unsigned Code = Stream.ReadCode();
|
| 1096 | switch (Code) {
|
| 1097 | case llvm::bitc::END_BLOCK:
|
| 1098 | return;
|
| 1099 |
|
| 1100 | case llvm::bitc::ENTER_SUBBLOCK:
|
| 1101 | // No known subblocks, always skip them.
|
| 1102 | Stream.ReadSubBlockID();
|
| 1103 | if (Stream.SkipBlock()) {
|
| 1104 | Error("malformed block record in AST file");
|
| 1105 | return;
|
| 1106 | }
|
| 1107 | continue;
|
| 1108 |
|
| 1109 | case llvm::bitc::DEFINE_ABBREV:
|
| 1110 | Stream.ReadAbbrevRecord();
|
| 1111 | continue;
|
| 1112 | default: break;
|
| 1113 | }
|
| 1114 |
|
| 1115 | // Read a record.
|
| 1116 | const char *BlobStart = 0;
|
| 1117 | unsigned BlobLen = 0;
|
| 1118 | Record.clear();
|
| 1119 | PreprocessorRecordTypes RecType =
|
| 1120 | (PreprocessorRecordTypes)Stream.ReadRecord(Code, Record, BlobStart,
|
| 1121 | BlobLen);
|
| 1122 | switch (RecType) {
|
| 1123 | case PP_MACRO_OBJECT_LIKE:
|
| 1124 | case PP_MACRO_FUNCTION_LIKE: {
|
| 1125 | // If we already have a macro, that means that we've hit the end
|
| 1126 | // of the definition of the macro we were looking for. We're
|
| 1127 | // done.
|
| 1128 | if (Macro)
|
| 1129 | return;
|
| 1130 |
|
| 1131 | IdentifierInfo *II = getLocalIdentifier(F, Record[0]);
|
| 1132 | if (II == 0) {
|
| 1133 | Error("macro must have a name in AST file");
|
| 1134 | return;
|
| 1135 | }
|
| 1136 |
|
| 1137 | unsigned GlobalID = getGlobalMacroID(F, Record[1]);
|
| 1138 |
|
| 1139 | // If this macro has already been loaded, don't do so again.
|
| 1140 | if (MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS])
|
| 1141 | return;
|
| 1142 |
|
| 1143 | SubmoduleID GlobalSubmoduleID = getGlobalSubmoduleID(F, Record[2]);
|
| 1144 | unsigned NextIndex = 3;
|
| 1145 | SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex);
|
| 1146 | MacroInfo *MI = PP.AllocateMacroInfo(Loc);
|
| 1147 |
|
| 1148 | // Record this macro.
|
| 1149 | MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS] = MI;
|
| 1150 |
|
| 1151 | SourceLocation UndefLoc = ReadSourceLocation(F, Record, NextIndex);
|
| 1152 | if (UndefLoc.isValid())
|
| 1153 | MI->setUndefLoc(UndefLoc);
|
| 1154 |
|
| 1155 | MI->setIsUsed(Record[NextIndex++]);
|
| 1156 | MI->setIsFromAST();
|
| 1157 |
|
| 1158 | bool IsPublic = Record[NextIndex++];
|
| 1159 | MI->setVisibility(IsPublic, ReadSourceLocation(F, Record, NextIndex));
|
| 1160 |
|
| 1161 | if (RecType == PP_MACRO_FUNCTION_LIKE) {
|
| 1162 | // Decode function-like macro info.
|
| 1163 | bool isC99VarArgs = Record[NextIndex++];
|
| 1164 | bool isGNUVarArgs = Record[NextIndex++];
|
| 1165 | bool hasCommaPasting = Record[NextIndex++];
|
| 1166 | MacroArgs.clear();
|
| 1167 | unsigned NumArgs = Record[NextIndex++];
|
| 1168 | for (unsigned i = 0; i != NumArgs; ++i)
|
| 1169 | MacroArgs.push_back(getLocalIdentifier(F, Record[NextIndex++]));
|
| 1170 |
|
| 1171 | // Install function-like macro info.
|
| 1172 | MI->setIsFunctionLike();
|
| 1173 | if (isC99VarArgs) MI->setIsC99Varargs();
|
| 1174 | if (isGNUVarArgs) MI->setIsGNUVarargs();
|
| 1175 | if (hasCommaPasting) MI->setHasCommaPasting();
|
| 1176 | MI->setArgumentList(MacroArgs.data(), MacroArgs.size(),
|
| 1177 | PP.getPreprocessorAllocator());
|
| 1178 | }
|
| 1179 |
|
| 1180 | if (DeserializationListener)
|
| 1181 | DeserializationListener->MacroRead(GlobalID, MI);
|
| 1182 |
|
| 1183 | // If an update record marked this as undefined, do so now.
|
| 1184 | // FIXME: Only if the submodule this update came from is visible?
|
| 1185 | MacroUpdatesMap::iterator Update = MacroUpdates.find(GlobalID);
|
| 1186 | if (Update != MacroUpdates.end()) {
|
| 1187 | if (MI->getUndefLoc().isInvalid()) {
|
| 1188 | for (unsigned I = 0, N = Update->second.size(); I != N; ++I) {
|
| 1189 | bool Hidden = false;
|
| 1190 | if (unsigned SubmoduleID = Update->second[I].first) {
|
| 1191 | if (Module *Owner = getSubmodule(SubmoduleID)) {
|
| 1192 | if (Owner->NameVisibility == Module::Hidden) {
|
| 1193 | // Note that this #undef is hidden.
|
| 1194 | Hidden = true;
|
| 1195 |
|
| 1196 | // Record this hiding for later.
|
| 1197 | HiddenNamesMap[Owner].push_back(
|
| 1198 | HiddenName(II, MI, Update->second[I].second.UndefLoc));
|
| 1199 | }
|
| 1200 | }
|
| 1201 | }
|
| 1202 |
|
| 1203 | if (!Hidden) {
|
| 1204 | MI->setUndefLoc(Update->second[I].second.UndefLoc);
|
| 1205 | if (PPMutationListener *Listener = PP.getPPMutationListener())
|
| 1206 | Listener->UndefinedMacro(MI);
|
| 1207 | break;
|
| 1208 | }
|
| 1209 | }
|
| 1210 | }
|
| 1211 | MacroUpdates.erase(Update);
|
| 1212 | }
|
| 1213 |
|
| 1214 | // Determine whether this macro definition is visible.
|
| 1215 | bool Hidden = !MI->isPublic();
|
| 1216 | if (!Hidden && GlobalSubmoduleID) {
|
| 1217 | if (Module *Owner = getSubmodule(GlobalSubmoduleID)) {
|
| 1218 | if (Owner->NameVisibility == Module::Hidden) {
|
| 1219 | // The owning module is not visible, and this macro definition
|
| 1220 | // should not be, either.
|
| 1221 | Hidden = true;
|
| 1222 |
|
| 1223 | // Note that this macro definition was hidden because its owning
|
| 1224 | // module is not yet visible.
|
| 1225 | HiddenNamesMap[Owner].push_back(HiddenName(II, MI));
|
| 1226 | }
|
| 1227 | }
|
| 1228 | }
|
| 1229 | MI->setHidden(Hidden);
|
| 1230 |
|
| 1231 | // Make sure we install the macro once we're done.
|
| 1232 | AddLoadedMacroInfo.MI = MI;
|
| 1233 | AddLoadedMacroInfo.II = II;
|
| 1234 |
|
| 1235 | // Remember that we saw this macro last so that we add the tokens that
|
| 1236 | // form its body to it.
|
| 1237 | Macro = MI;
|
| 1238 |
|
| 1239 | if (NextIndex + 1 == Record.size() && PP.getPreprocessingRecord() &&
|
| 1240 | Record[NextIndex]) {
|
| 1241 | // We have a macro definition. Register the association
|
| 1242 | PreprocessedEntityID
|
| 1243 | GlobalID = getGlobalPreprocessedEntityID(F, Record[NextIndex]);
|
| 1244 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
|
| 1245 | PPRec.RegisterMacroDefinition(Macro,
|
| 1246 | PPRec.getPPEntityID(GlobalID-1, /*isLoaded=*/true));
|
| 1247 | }
|
| 1248 |
|
| 1249 | ++NumMacrosRead;
|
| 1250 | break;
|
| 1251 | }
|
| 1252 |
|
| 1253 | case PP_TOKEN: {
|
| 1254 | // If we see a TOKEN before a PP_MACRO_*, then the file is
|
| 1255 | // erroneous, just pretend we didn't see this.
|
| 1256 | if (Macro == 0) break;
|
| 1257 |
|
| 1258 | Token Tok;
|
| 1259 | Tok.startToken();
|
| 1260 | Tok.setLocation(ReadSourceLocation(F, Record[0]));
|
| 1261 | Tok.setLength(Record[1]);
|
| 1262 | if (IdentifierInfo *II = getLocalIdentifier(F, Record[2]))
|
| 1263 | Tok.setIdentifierInfo(II);
|
| 1264 | Tok.setKind((tok::TokenKind)Record[3]);
|
| 1265 | Tok.setFlag((Token::TokenFlags)Record[4]);
|
| 1266 | Macro->AddTokenToBody(Tok);
|
| 1267 | break;
|
| 1268 | }
|
| 1269 | }
|
| 1270 | }
|
| 1271 | }
|
| 1272 |
|
| 1273 | PreprocessedEntityID
|
| 1274 | ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M, unsigned LocalID) const {
|
| 1275 | ContinuousRangeMap<uint32_t, int, 2>::const_iterator
|
| 1276 | I = M.PreprocessedEntityRemap.find(LocalID - NUM_PREDEF_PP_ENTITY_IDS);
|
| 1277 | assert(I != M.PreprocessedEntityRemap.end()
|
| 1278 | && "Invalid index into preprocessed entity index remap");
|
| 1279 |
|
| 1280 | return LocalID + I->second;
|
| 1281 | }
|
| 1282 |
|
| 1283 | unsigned HeaderFileInfoTrait::ComputeHash(const char *path) {
|
| 1284 | return llvm::HashString(llvm::sys::path::filename(path));
|
| 1285 | }
|
| 1286 |
|
| 1287 | HeaderFileInfoTrait::internal_key_type
|
| 1288 | HeaderFileInfoTrait::GetInternalKey(const char *path) { return path; }
|
| 1289 |
|
| 1290 | bool HeaderFileInfoTrait::EqualKey(internal_key_type a, internal_key_type b) {
|
| 1291 | if (strcmp(a, b) == 0)
|
| 1292 | return true;
|
| 1293 |
|
| 1294 | if (llvm::sys::path::filename(a) != llvm::sys::path::filename(b))
|
| 1295 | return false;
|
| 1296 |
|
| 1297 | // Determine whether the actual files are equivalent.
|
| 1298 | bool Result = false;
|
| 1299 | if (llvm::sys::fs::equivalent(a, b, Result))
|
| 1300 | return false;
|
| 1301 |
|
| 1302 | return Result;
|
| 1303 | }
|
| 1304 |
|
| 1305 | std::pair<unsigned, unsigned>
|
| 1306 | HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) {
|
| 1307 | unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d);
|
| 1308 | unsigned DataLen = (unsigned) *d++;
|
| 1309 | return std::make_pair(KeyLen + 1, DataLen);
|
| 1310 | }
|
| 1311 |
|
| 1312 | HeaderFileInfoTrait::data_type
|
| 1313 | HeaderFileInfoTrait::ReadData(const internal_key_type, const unsigned char *d,
|
| 1314 | unsigned DataLen) {
|
| 1315 | const unsigned char *End = d + DataLen;
|
| 1316 | using namespace clang::io;
|
| 1317 | HeaderFileInfo HFI;
|
| 1318 | unsigned Flags = *d++;
|
| 1319 | HFI.isImport = (Flags >> 5) & 0x01;
|
| 1320 | HFI.isPragmaOnce = (Flags >> 4) & 0x01;
|
| 1321 | HFI.DirInfo = (Flags >> 2) & 0x03;
|
| 1322 | HFI.Resolved = (Flags >> 1) & 0x01;
|
| 1323 | HFI.IndexHeaderMapHeader = Flags & 0x01;
|
| 1324 | HFI.NumIncludes = ReadUnalignedLE16(d);
|
| 1325 | HFI.ControllingMacroID = Reader.getGlobalIdentifierID(M,
|
| 1326 | ReadUnalignedLE32(d));
|
| 1327 | if (unsigned FrameworkOffset = ReadUnalignedLE32(d)) {
|
| 1328 | // The framework offset is 1 greater than the actual offset,
|
| 1329 | // since 0 is used as an indicator for "no framework name".
|
| 1330 | StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1);
|
| 1331 | HFI.Framework = HS->getUniqueFrameworkName(FrameworkName);
|
| 1332 | }
|
| 1333 |
|
| 1334 | assert(End == d && "Wrong data length in HeaderFileInfo deserialization");
|
| 1335 | (void)End;
|
| 1336 |
|
| 1337 | // This HeaderFileInfo was externally loaded.
|
| 1338 | HFI.External = true;
|
| 1339 | return HFI;
|
| 1340 | }
|
| 1341 |
|
| 1342 | void ASTReader::setIdentifierIsMacro(IdentifierInfo *II, ArrayRef<MacroID> IDs){
|
| 1343 | II->setHadMacroDefinition(true);
|
| 1344 | assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard");
|
| 1345 | PendingMacroIDs[II].append(IDs.begin(), IDs.end());
|
| 1346 | }
|
| 1347 |
|
| 1348 | void ASTReader::ReadDefinedMacros() {
|
| 1349 | // Note that we are loading defined macros.
|
| 1350 | Deserializing Macros(this);
|
| 1351 |
|
| 1352 | for (ModuleReverseIterator I = ModuleMgr.rbegin(),
|
| 1353 | E = ModuleMgr.rend(); I != E; ++I) {
|
| 1354 | llvm::BitstreamCursor &MacroCursor = (*I)->MacroCursor;
|
| 1355 |
|
| 1356 | // If there was no preprocessor block, skip this file.
|
| 1357 | if (!MacroCursor.getBitStreamReader())
|
| 1358 | continue;
|
| 1359 |
|
| 1360 | llvm::BitstreamCursor Cursor = MacroCursor;
|
| 1361 | Cursor.JumpToBit((*I)->MacroStartOffset);
|
| 1362 |
|
| 1363 | RecordData Record;
|
| 1364 | while (true) {
|
| 1365 | unsigned Code = Cursor.ReadCode();
|
| 1366 | if (Code == llvm::bitc::END_BLOCK)
|
| 1367 | break;
|
| 1368 |
|
| 1369 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 1370 | // No known subblocks, always skip them.
|
| 1371 | Cursor.ReadSubBlockID();
|
| 1372 | if (Cursor.SkipBlock()) {
|
| 1373 | Error("malformed block record in AST file");
|
| 1374 | return;
|
| 1375 | }
|
| 1376 | continue;
|
| 1377 | }
|
| 1378 |
|
| 1379 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 1380 | Cursor.ReadAbbrevRecord();
|
| 1381 | continue;
|
| 1382 | }
|
| 1383 |
|
| 1384 | // Read a record.
|
| 1385 | const char *BlobStart;
|
| 1386 | unsigned BlobLen;
|
| 1387 | Record.clear();
|
| 1388 | switch (Cursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
| 1389 | default: // Default behavior: ignore.
|
| 1390 | break;
|
| 1391 |
|
| 1392 | case PP_MACRO_OBJECT_LIKE:
|
| 1393 | case PP_MACRO_FUNCTION_LIKE:
|
| 1394 | getLocalIdentifier(**I, Record[0]);
|
| 1395 | break;
|
| 1396 |
|
| 1397 | case PP_TOKEN:
|
| 1398 | // Ignore tokens.
|
| 1399 | break;
|
| 1400 | }
|
| 1401 | }
|
| 1402 | }
|
| 1403 | }
|
| 1404 |
|
| 1405 | namespace {
|
| 1406 | /// \brief Visitor class used to look up identifirs in an AST file.
|
| 1407 | class IdentifierLookupVisitor {
|
| 1408 | StringRef Name;
|
| 1409 | unsigned PriorGeneration;
|
| 1410 | IdentifierInfo *Found;
|
| 1411 | public:
|
| 1412 | IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration)
|
| 1413 | : Name(Name), PriorGeneration(PriorGeneration), Found() { }
|
| 1414 |
|
| 1415 | static bool visit(ModuleFile &M, void *UserData) {
|
| 1416 | IdentifierLookupVisitor *This
|
| 1417 | = static_cast<IdentifierLookupVisitor *>(UserData);
|
| 1418 |
|
| 1419 | // If we've already searched this module file, skip it now.
|
| 1420 | if (M.Generation <= This->PriorGeneration)
|
| 1421 | return true;
|
| 1422 |
|
| 1423 | ASTIdentifierLookupTable *IdTable
|
| 1424 | = (ASTIdentifierLookupTable *)M.IdentifierLookupTable;
|
| 1425 | if (!IdTable)
|
| 1426 | return false;
|
| 1427 |
|
| 1428 | ASTIdentifierLookupTrait Trait(IdTable->getInfoObj().getReader(),
|
| 1429 | M, This->Found);
|
| 1430 |
|
| 1431 | std::pair<const char*, unsigned> Key(This->Name.begin(),
|
| 1432 | This->Name.size());
|
| 1433 | ASTIdentifierLookupTable::iterator Pos = IdTable->find(Key, &Trait);
|
| 1434 | if (Pos == IdTable->end())
|
| 1435 | return false;
|
| 1436 |
|
| 1437 | // Dereferencing the iterator has the effect of building the
|
| 1438 | // IdentifierInfo node and populating it with the various
|
| 1439 | // declarations it needs.
|
| 1440 | This->Found = *Pos;
|
| 1441 | return true;
|
| 1442 | }
|
| 1443 |
|
| 1444 | // \brief Retrieve the identifier info found within the module
|
| 1445 | // files.
|
| 1446 | IdentifierInfo *getIdentifierInfo() const { return Found; }
|
| 1447 | };
|
| 1448 | }
|
| 1449 |
|
| 1450 | void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) {
|
| 1451 | // Note that we are loading an identifier.
|
| 1452 | Deserializing AnIdentifier(this);
|
| 1453 |
|
| 1454 | unsigned PriorGeneration = 0;
|
| 1455 | if (getContext().getLangOpts().Modules)
|
| 1456 | PriorGeneration = IdentifierGeneration[&II];
|
| 1457 |
|
| 1458 | IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration);
|
| 1459 | ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor);
|
| 1460 | markIdentifierUpToDate(&II);
|
| 1461 | }
|
| 1462 |
|
| 1463 | void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) {
|
| 1464 | if (!II)
|
| 1465 | return;
|
| 1466 |
|
| 1467 | II->setOutOfDate(false);
|
| 1468 |
|
| 1469 | // Update the generation for this identifier.
|
| 1470 | if (getContext().getLangOpts().Modules)
|
| 1471 | IdentifierGeneration[II] = CurrentGeneration;
|
| 1472 | }
|
| 1473 |
|
| 1474 | llvm::PointerIntPair<const FileEntry *, 1, bool>
|
| 1475 | ASTReader::getInputFile(ModuleFile &F, unsigned ID, bool Complain) {
|
| 1476 | // If this ID is bogus, just return an empty input file.
|
| 1477 | if (ID == 0 || ID > F.InputFilesLoaded.size())
|
| 1478 | return InputFile();
|
| 1479 |
|
| 1480 | // If we've already loaded this input file, return it.
|
| 1481 | if (F.InputFilesLoaded[ID-1].getPointer())
|
| 1482 | return F.InputFilesLoaded[ID-1];
|
| 1483 |
|
| 1484 | // Go find this input file.
|
| 1485 | llvm::BitstreamCursor &Cursor = F.InputFilesCursor;
|
| 1486 | SavedStreamPosition SavedPosition(Cursor);
|
| 1487 | Cursor.JumpToBit(F.InputFileOffsets[ID-1]);
|
| 1488 |
|
| 1489 | unsigned Code = Cursor.ReadCode();
|
| 1490 | RecordData Record;
|
| 1491 | const char *BlobStart = 0;
|
| 1492 | unsigned BlobLen = 0;
|
| 1493 | switch ((InputFileRecordTypes)Cursor.ReadRecord(Code, Record,
|
| 1494 | &BlobStart, &BlobLen)) {
|
| 1495 | case INPUT_FILE: {
|
| 1496 | unsigned StoredID = Record[0];
|
| 1497 | assert(ID == StoredID && "Bogus stored ID or offset");
|
| 1498 | (void)StoredID;
|
| 1499 | off_t StoredSize = (off_t)Record[1];
|
| 1500 | time_t StoredTime = (time_t)Record[2];
|
| 1501 | bool Overridden = (bool)Record[3];
|
| 1502 |
|
| 1503 | // Get the file entry for this input file.
|
| 1504 | StringRef OrigFilename(BlobStart, BlobLen);
|
| 1505 | std::string Filename = OrigFilename;
|
| 1506 | MaybeAddSystemRootToFilename(F, Filename);
|
| 1507 | const FileEntry *File
|
| 1508 | = Overridden? FileMgr.getVirtualFile(Filename, StoredSize, StoredTime)
|
| 1509 | : FileMgr.getFile(Filename, /*OpenFile=*/false);
|
| 1510 |
|
| 1511 | // If we didn't find the file, resolve it relative to the
|
| 1512 | // original directory from which this AST file was created.
|
| 1513 | if (File == 0 && !F.OriginalDir.empty() && !CurrentDir.empty() &&
|
| 1514 | F.OriginalDir != CurrentDir) {
|
| 1515 | std::string Resolved = resolveFileRelativeToOriginalDir(Filename,
|
| 1516 | F.OriginalDir,
|
| 1517 | CurrentDir);
|
| 1518 | if (!Resolved.empty())
|
| 1519 | File = FileMgr.getFile(Resolved);
|
| 1520 | }
|
| 1521 |
|
| 1522 | // For an overridden file, create a virtual file with the stored
|
| 1523 | // size/timestamp.
|
| 1524 | if (Overridden && File == 0) {
|
| 1525 | File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime);
|
| 1526 | }
|
| 1527 |
|
| 1528 | if (File == 0) {
|
| 1529 | if (Complain) {
|
| 1530 | std::string ErrorStr = "could not find file '";
|
| 1531 | ErrorStr += Filename;
|
| 1532 | ErrorStr += "' referenced by AST file";
|
| 1533 | Error(ErrorStr.c_str());
|
| 1534 | }
|
| 1535 | return InputFile();
|
| 1536 | }
|
| 1537 |
|
| 1538 | // Note that we've loaded this input file.
|
| 1539 | F.InputFilesLoaded[ID-1] = InputFile(File, Overridden);
|
| 1540 |
|
| 1541 | // Check if there was a request to override the contents of the file
|
| 1542 | // that was part of the precompiled header. Overridding such a file
|
| 1543 | // can lead to problems when lexing using the source locations from the
|
| 1544 | // PCH.
|
| 1545 | SourceManager &SM = getSourceManager();
|
| 1546 | if (!Overridden && SM.isFileOverridden(File)) {
|
| 1547 | Error(diag::err_fe_pch_file_overridden, Filename);
|
| 1548 | // After emitting the diagnostic, recover by disabling the override so
|
| 1549 | // that the original file will be used.
|
| 1550 | SM.disableFileContentsOverride(File);
|
| 1551 | // The FileEntry is a virtual file entry with the size of the contents
|
| 1552 | // that would override the original contents. Set it to the original's
|
| 1553 | // size/time.
|
| 1554 | FileMgr.modifyFileEntry(const_cast<FileEntry*>(File),
|
| 1555 | StoredSize, StoredTime);
|
| 1556 | }
|
| 1557 |
|
| 1558 | // For an overridden file, there is nothing to validate.
|
| 1559 | if (Overridden)
|
| 1560 | return InputFile(File, Overridden);
|
| 1561 |
|
| 1562 | if ((StoredSize != File->getSize()
|
| 1563 | #if !defined(LLVM_ON_WIN32)
|
| 1564 | // In our regression testing, the Windows file system seems to
|
| 1565 | // have inconsistent modification times that sometimes
|
| 1566 | // erroneously trigger this error-handling path.
|
| 1567 | || StoredTime != File->getModificationTime()
|
| 1568 | #endif
|
| 1569 | )) {
|
| 1570 | if (Complain)
|
| 1571 | Error(diag::err_fe_pch_file_modified, Filename);
|
| 1572 |
|
| 1573 | return InputFile();
|
| 1574 | }
|
| 1575 |
|
| 1576 | return InputFile(File, Overridden);
|
| 1577 | }
|
| 1578 | }
|
| 1579 |
|
| 1580 | return InputFile();
|
| 1581 | }
|
| 1582 |
|
| 1583 | const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) {
|
| 1584 | ModuleFile &M = ModuleMgr.getPrimaryModule();
|
| 1585 | std::string Filename = filenameStrRef;
|
| 1586 | MaybeAddSystemRootToFilename(M, Filename);
|
| 1587 | const FileEntry *File = FileMgr.getFile(Filename);
|
| 1588 | if (File == 0 && !M.OriginalDir.empty() && !CurrentDir.empty() &&
|
| 1589 | M.OriginalDir != CurrentDir) {
|
| 1590 | std::string resolved = resolveFileRelativeToOriginalDir(Filename,
|
| 1591 | M.OriginalDir,
|
| 1592 | CurrentDir);
|
| 1593 | if (!resolved.empty())
|
| 1594 | File = FileMgr.getFile(resolved);
|
| 1595 | }
|
| 1596 |
|
| 1597 | return File;
|
| 1598 | }
|
| 1599 |
|
| 1600 | /// \brief If we are loading a relocatable PCH file, and the filename is
|
| 1601 | /// not an absolute path, add the system root to the beginning of the file
|
| 1602 | /// name.
|
| 1603 | void ASTReader::MaybeAddSystemRootToFilename(ModuleFile &M,
|
| 1604 | std::string &Filename) {
|
| 1605 | // If this is not a relocatable PCH file, there's nothing to do.
|
| 1606 | if (!M.RelocatablePCH)
|
| 1607 | return;
|
| 1608 |
|
| 1609 | if (Filename.empty() || llvm::sys::path::is_absolute(Filename))
|
| 1610 | return;
|
| 1611 |
|
| 1612 | if (isysroot.empty()) {
|
| 1613 | // If no system root was given, default to '/'
|
| 1614 | Filename.insert(Filename.begin(), '/');
|
| 1615 | return;
|
| 1616 | }
|
| 1617 |
|
| 1618 | unsigned Length = isysroot.size();
|
| 1619 | if (isysroot[Length - 1] != '/')
|
| 1620 | Filename.insert(Filename.begin(), '/');
|
| 1621 |
|
| 1622 | Filename.insert(Filename.begin(), isysroot.begin(), isysroot.end());
|
| 1623 | }
|
| 1624 |
|
| 1625 | ASTReader::ASTReadResult
|
| 1626 | ASTReader::ReadControlBlock(ModuleFile &F,
|
| 1627 | llvm::SmallVectorImpl<ImportedModule> &Loaded,
|
| 1628 | unsigned ClientLoadCapabilities) {
|
| 1629 | llvm::BitstreamCursor &Stream = F.Stream;
|
| 1630 |
|
| 1631 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
|
| 1632 | Error("malformed block record in AST file");
|
| 1633 | return Failure;
|
| 1634 | }
|
| 1635 |
|
| 1636 | // Read all of the records and blocks in the control block.
|
| 1637 | RecordData Record;
|
| 1638 | while (!Stream.AtEndOfStream()) {
|
| 1639 | unsigned Code = Stream.ReadCode();
|
| 1640 | if (Code == llvm::bitc::END_BLOCK) {
|
| 1641 | if (Stream.ReadBlockEnd()) {
|
| 1642 | Error("error at end of control block in AST file");
|
| 1643 | return Failure;
|
| 1644 | }
|
| 1645 |
|
| 1646 | // Validate all of the input files.
|
| 1647 | if (!DisableValidation) {
|
| 1648 | bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0;
|
| 1649 | for (unsigned I = 0, N = Record[0]; I < N; ++I)
|
| 1650 | if (!getInputFile(F, I+1, Complain).getPointer())
|
| 1651 | return OutOfDate;
|
| 1652 | }
|
| 1653 |
|
| 1654 | return Success;
|
| 1655 | }
|
| 1656 |
|
| 1657 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 1658 | switch (Stream.ReadSubBlockID()) {
|
| 1659 | case INPUT_FILES_BLOCK_ID:
|
| 1660 | F.InputFilesCursor = Stream;
|
| 1661 | if (Stream.SkipBlock() || // Skip with the main cursor
|
| 1662 | // Read the abbreviations
|
| 1663 | ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) {
|
| 1664 | Error("malformed block record in AST file");
|
| 1665 | return Failure;
|
| 1666 | }
|
| 1667 | continue;
|
| 1668 |
|
| 1669 | default:
|
| 1670 | if (!Stream.SkipBlock())
|
| 1671 | continue;
|
| 1672 | break;
|
| 1673 | }
|
| 1674 |
|
| 1675 | Error("malformed block record in AST file");
|
| 1676 | return Failure;
|
| 1677 | }
|
| 1678 |
|
| 1679 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 1680 | Stream.ReadAbbrevRecord();
|
| 1681 | continue;
|
| 1682 | }
|
| 1683 |
|
| 1684 | // Read and process a record.
|
| 1685 | Record.clear();
|
| 1686 | const char *BlobStart = 0;
|
| 1687 | unsigned BlobLen = 0;
|
| 1688 | switch ((ControlRecordTypes)Stream.ReadRecord(Code, Record,
|
| 1689 | &BlobStart, &BlobLen)) {
|
| 1690 | case METADATA: {
|
| 1691 | if (Record[0] != VERSION_MAJOR && !DisableValidation) {
|
| 1692 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
|
| 1693 | Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old
|
| 1694 | : diag::warn_pch_version_too_new);
|
| 1695 | return VersionMismatch;
|
| 1696 | }
|
| 1697 |
|
| 1698 | bool hasErrors = Record[5];
|
| 1699 | if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) {
|
| 1700 | Diag(diag::err_pch_with_compiler_errors);
|
| 1701 | return HadErrors;
|
| 1702 | }
|
| 1703 |
|
| 1704 | F.RelocatablePCH = Record[4];
|
| 1705 |
|
| 1706 | const std::string &CurBranch = getClangFullRepositoryVersion();
|
| 1707 | StringRef ASTBranch(BlobStart, BlobLen);
|
| 1708 | if (StringRef(CurBranch) != ASTBranch && !DisableValidation) {
|
| 1709 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
|
| 1710 | Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch;
|
| 1711 | return VersionMismatch;
|
| 1712 | }
|
| 1713 | break;
|
| 1714 | }
|
| 1715 |
|
| 1716 | case IMPORTS: {
|
| 1717 | // Load each of the imported PCH files.
|
| 1718 | unsigned Idx = 0, N = Record.size();
|
| 1719 | while (Idx < N) {
|
| 1720 | // Read information about the AST file.
|
| 1721 | ModuleKind ImportedKind = (ModuleKind)Record[Idx++];
|
| 1722 | // The import location will be the local one for now; we will adjust
|
| 1723 | // all import locations of module imports after the global source
|
| 1724 | // location info are setup.
|
| 1725 | SourceLocation ImportLoc =
|
| 1726 | SourceLocation::getFromRawEncoding(Record[Idx++]);
|
| 1727 | unsigned Length = Record[Idx++];
|
| 1728 | SmallString<128> ImportedFile(Record.begin() + Idx,
|
| 1729 | Record.begin() + Idx + Length);
|
| 1730 | Idx += Length;
|
| 1731 |
|
| 1732 | // Load the AST file.
|
| 1733 | switch(ReadASTCore(ImportedFile, ImportedKind, ImportLoc, &F, Loaded,
|
| 1734 | ClientLoadCapabilities)) {
|
| 1735 | case Failure: return Failure;
|
| 1736 | // If we have to ignore the dependency, we'll have to ignore this too.
|
| 1737 | case OutOfDate: return OutOfDate;
|
| 1738 | case VersionMismatch: return VersionMismatch;
|
| 1739 | case ConfigurationMismatch: return ConfigurationMismatch;
|
| 1740 | case HadErrors: return HadErrors;
|
| 1741 | case Success: break;
|
| 1742 | }
|
| 1743 | }
|
| 1744 | break;
|
| 1745 | }
|
| 1746 |
|
| 1747 | case LANGUAGE_OPTIONS: {
|
| 1748 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0;
|
| 1749 | if (Listener && &F == *ModuleMgr.begin() &&
|
| 1750 | ParseLanguageOptions(Record, Complain, *Listener) &&
|
| 1751 | !DisableValidation)
|
| 1752 | return ConfigurationMismatch;
|
| 1753 | break;
|
| 1754 | }
|
| 1755 |
|
| 1756 | case TARGET_OPTIONS: {
|
| 1757 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
| 1758 | if (Listener && &F == *ModuleMgr.begin() &&
|
| 1759 | ParseTargetOptions(Record, Complain, *Listener) &&
|
| 1760 | !DisableValidation)
|
| 1761 | return ConfigurationMismatch;
|
| 1762 | break;
|
| 1763 | }
|
| 1764 |
|
| 1765 | case DIAGNOSTIC_OPTIONS: {
|
| 1766 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
| 1767 | if (Listener && &F == *ModuleMgr.begin() &&
|
| 1768 | ParseDiagnosticOptions(Record, Complain, *Listener) &&
|
| 1769 | !DisableValidation)
|
| 1770 | return ConfigurationMismatch;
|
| 1771 | break;
|
| 1772 | }
|
| 1773 |
|
| 1774 | case FILE_SYSTEM_OPTIONS: {
|
| 1775 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
| 1776 | if (Listener && &F == *ModuleMgr.begin() &&
|
| 1777 | ParseFileSystemOptions(Record, Complain, *Listener) &&
|
| 1778 | !DisableValidation)
|
| 1779 | return ConfigurationMismatch;
|
| 1780 | break;
|
| 1781 | }
|
| 1782 |
|
| 1783 | case HEADER_SEARCH_OPTIONS: {
|
| 1784 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
| 1785 | if (Listener && &F == *ModuleMgr.begin() &&
|
| 1786 | ParseHeaderSearchOptions(Record, Complain, *Listener) &&
|
| 1787 | !DisableValidation)
|
| 1788 | return ConfigurationMismatch;
|
| 1789 | break;
|
| 1790 | }
|
| 1791 |
|
| 1792 | case PREPROCESSOR_OPTIONS: {
|
| 1793 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0;
|
| 1794 | if (Listener && &F == *ModuleMgr.begin() &&
|
| 1795 | ParsePreprocessorOptions(Record, Complain, *Listener,
|
| 1796 | SuggestedPredefines) &&
|
| 1797 | !DisableValidation)
|
| 1798 | return ConfigurationMismatch;
|
| 1799 | break;
|
| 1800 | }
|
| 1801 |
|
| 1802 | case ORIGINAL_FILE:
|
| 1803 | F.OriginalSourceFileID = FileID::get(Record[0]);
|
| 1804 | F.ActualOriginalSourceFileName.assign(BlobStart, BlobLen);
|
| 1805 | F.OriginalSourceFileName = F.ActualOriginalSourceFileName;
|
| 1806 | MaybeAddSystemRootToFilename(F, F.OriginalSourceFileName);
|
| 1807 | break;
|
| 1808 |
|
| 1809 | case ORIGINAL_FILE_ID:
|
| 1810 | F.OriginalSourceFileID = FileID::get(Record[0]);
|
| 1811 | break;
|
| 1812 |
|
| 1813 | case ORIGINAL_PCH_DIR:
|
| 1814 | F.OriginalDir.assign(BlobStart, BlobLen);
|
| 1815 | break;
|
| 1816 |
|
| 1817 | case INPUT_FILE_OFFSETS:
|
| 1818 | F.InputFileOffsets = (const uint32_t *)BlobStart;
|
| 1819 | F.InputFilesLoaded.resize(Record[0]);
|
| 1820 | break;
|
| 1821 | }
|
| 1822 | }
|
| 1823 |
|
| 1824 | Error("premature end of bitstream in AST file");
|
| 1825 | return Failure;
|
| 1826 | }
|
| 1827 |
|
| 1828 | bool ASTReader::ReadASTBlock(ModuleFile &F) {
|
| 1829 | llvm::BitstreamCursor &Stream = F.Stream;
|
| 1830 |
|
| 1831 | if (Stream.EnterSubBlock(AST_BLOCK_ID)) {
|
| 1832 | Error("malformed block record in AST file");
|
| 1833 | return true;
|
| 1834 | }
|
| 1835 |
|
| 1836 | // Read all of the records and blocks for the AST file.
|
| 1837 | RecordData Record;
|
| 1838 | while (!Stream.AtEndOfStream()) {
|
| 1839 | unsigned Code = Stream.ReadCode();
|
| 1840 | if (Code == llvm::bitc::END_BLOCK) {
|
| 1841 | if (Stream.ReadBlockEnd()) {
|
| 1842 | Error("error at end of module block in AST file");
|
| 1843 | return true;
|
| 1844 | }
|
| 1845 |
|
| 1846 | DeclContext *DC = Context.getTranslationUnitDecl();
|
| 1847 | if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage())
|
| 1848 | DC->setMustBuildLookupTable();
|
| 1849 |
|
| 1850 | return false;
|
| 1851 | }
|
| 1852 |
|
| 1853 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 1854 | switch (Stream.ReadSubBlockID()) {
|
| 1855 | case DECLTYPES_BLOCK_ID:
|
| 1856 | // We lazily load the decls block, but we want to set up the
|
| 1857 | // DeclsCursor cursor to point into it. Clone our current bitcode
|
| 1858 | // cursor to it, enter the block and read the abbrevs in that block.
|
| 1859 | // With the main cursor, we just skip over it.
|
| 1860 | F.DeclsCursor = Stream;
|
| 1861 | if (Stream.SkipBlock() || // Skip with the main cursor.
|
| 1862 | // Read the abbrevs.
|
| 1863 | ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) {
|
| 1864 | Error("malformed block record in AST file");
|
| 1865 | return true;
|
| 1866 | }
|
| 1867 | break;
|
| 1868 |
|
| 1869 | case DECL_UPDATES_BLOCK_ID:
|
| 1870 | if (Stream.SkipBlock()) {
|
| 1871 | Error("malformed block record in AST file");
|
| 1872 | return true;
|
| 1873 | }
|
| 1874 | break;
|
| 1875 |
|
| 1876 | case PREPROCESSOR_BLOCK_ID:
|
| 1877 | F.MacroCursor = Stream;
|
| 1878 | if (!PP.getExternalSource())
|
| 1879 | PP.setExternalSource(this);
|
| 1880 |
|
| 1881 | if (Stream.SkipBlock() ||
|
| 1882 | ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) {
|
| 1883 | Error("malformed block record in AST file");
|
| 1884 | return true;
|
| 1885 | }
|
| 1886 | F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo();
|
| 1887 | break;
|
| 1888 |
|
| 1889 | case PREPROCESSOR_DETAIL_BLOCK_ID:
|
| 1890 | F.PreprocessorDetailCursor = Stream;
|
| 1891 | if (Stream.SkipBlock() ||
|
| 1892 | ReadBlockAbbrevs(F.PreprocessorDetailCursor,
|
| 1893 | PREPROCESSOR_DETAIL_BLOCK_ID)) {
|
| 1894 | Error("malformed preprocessor detail record in AST file");
|
| 1895 | return true;
|
| 1896 | }
|
| 1897 | F.PreprocessorDetailStartOffset
|
| 1898 | = F.PreprocessorDetailCursor.GetCurrentBitNo();
|
| 1899 |
|
| 1900 | if (!PP.getPreprocessingRecord())
|
| 1901 | PP.createPreprocessingRecord();
|
| 1902 | if (!PP.getPreprocessingRecord()->getExternalSource())
|
| 1903 | PP.getPreprocessingRecord()->SetExternalSource(*this);
|
| 1904 | break;
|
| 1905 |
|
| 1906 | case SOURCE_MANAGER_BLOCK_ID:
|
| 1907 | if (ReadSourceManagerBlock(F))
|
| 1908 | return true;
|
| 1909 | break;
|
| 1910 |
|
| 1911 | case SUBMODULE_BLOCK_ID:
|
| 1912 | if (ReadSubmoduleBlock(F))
|
| 1913 | return true;
|
| 1914 | break;
|
| 1915 |
|
| 1916 | case COMMENTS_BLOCK_ID: {
|
| 1917 | llvm::BitstreamCursor C = Stream;
|
| 1918 | if (Stream.SkipBlock() ||
|
| 1919 | ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) {
|
| 1920 | Error("malformed comments block in AST file");
|
| 1921 | return true;
|
| 1922 | }
|
| 1923 | CommentsCursors.push_back(std::make_pair(C, &F));
|
| 1924 | break;
|
| 1925 | }
|
| 1926 |
|
| 1927 | default:
|
| 1928 | if (!Stream.SkipBlock())
|
| 1929 | break;
|
| 1930 | Error("malformed block record in AST file");
|
| 1931 | return true;
|
| 1932 | }
|
| 1933 | continue;
|
| 1934 | }
|
| 1935 |
|
| 1936 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 1937 | Stream.ReadAbbrevRecord();
|
| 1938 | continue;
|
| 1939 | }
|
| 1940 |
|
| 1941 | // Read and process a record.
|
| 1942 | Record.clear();
|
| 1943 | const char *BlobStart = 0;
|
| 1944 | unsigned BlobLen = 0;
|
| 1945 | switch ((ASTRecordTypes)Stream.ReadRecord(Code, Record,
|
| 1946 | &BlobStart, &BlobLen)) {
|
| 1947 | default: // Default behavior: ignore.
|
| 1948 | break;
|
| 1949 |
|
| 1950 | case TYPE_OFFSET: {
|
| 1951 | if (F.LocalNumTypes != 0) {
|
| 1952 | Error("duplicate TYPE_OFFSET record in AST file");
|
| 1953 | return true;
|
| 1954 | }
|
| 1955 | F.TypeOffsets = (const uint32_t *)BlobStart;
|
| 1956 | F.LocalNumTypes = Record[0];
|
| 1957 | unsigned LocalBaseTypeIndex = Record[1];
|
| 1958 | F.BaseTypeIndex = getTotalNumTypes();
|
| 1959 |
|
| 1960 | if (F.LocalNumTypes > 0) {
|
| 1961 | // Introduce the global -> local mapping for types within this module.
|
| 1962 | GlobalTypeMap.insert(std::make_pair(getTotalNumTypes(), &F));
|
| 1963 |
|
| 1964 | // Introduce the local -> global mapping for types within this module.
|
| 1965 | F.TypeRemap.insertOrReplace(
|
| 1966 | std::make_pair(LocalBaseTypeIndex,
|
| 1967 | F.BaseTypeIndex - LocalBaseTypeIndex));
|
| 1968 |
|
| 1969 | TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes);
|
| 1970 | }
|
| 1971 | break;
|
| 1972 | }
|
| 1973 |
|
| 1974 | case DECL_OFFSET: {
|
| 1975 | if (F.LocalNumDecls != 0) {
|
| 1976 | Error("duplicate DECL_OFFSET record in AST file");
|
| 1977 | return true;
|
| 1978 | }
|
| 1979 | F.DeclOffsets = (const DeclOffset *)BlobStart;
|
| 1980 | F.LocalNumDecls = Record[0];
|
| 1981 | unsigned LocalBaseDeclID = Record[1];
|
| 1982 | F.BaseDeclID = getTotalNumDecls();
|
| 1983 |
|
| 1984 | if (F.LocalNumDecls > 0) {
|
| 1985 | // Introduce the global -> local mapping for declarations within this
|
| 1986 | // module.
|
| 1987 | GlobalDeclMap.insert(
|
| 1988 | std::make_pair(getTotalNumDecls() + NUM_PREDEF_DECL_IDS, &F));
|
| 1989 |
|
| 1990 | // Introduce the local -> global mapping for declarations within this
|
| 1991 | // module.
|
| 1992 | F.DeclRemap.insertOrReplace(
|
| 1993 | std::make_pair(LocalBaseDeclID, F.BaseDeclID - LocalBaseDeclID));
|
| 1994 |
|
| 1995 | // Introduce the global -> local mapping for declarations within this
|
| 1996 | // module.
|
| 1997 | F.GlobalToLocalDeclIDs[&F] = LocalBaseDeclID;
|
| 1998 |
|
| 1999 | DeclsLoaded.resize(DeclsLoaded.size() + F.LocalNumDecls);
|
| 2000 | }
|
| 2001 | break;
|
| 2002 | }
|
| 2003 |
|
| 2004 | case TU_UPDATE_LEXICAL: {
|
| 2005 | DeclContext *TU = Context.getTranslationUnitDecl();
|
| 2006 | DeclContextInfo &Info = F.DeclContextInfos[TU];
|
| 2007 | Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair *>(BlobStart);
|
| 2008 | Info.NumLexicalDecls
|
| 2009 | = static_cast<unsigned int>(BlobLen / sizeof(KindDeclIDPair));
|
| 2010 | TU->setHasExternalLexicalStorage(true);
|
| 2011 | break;
|
| 2012 | }
|
| 2013 |
|
| 2014 | case UPDATE_VISIBLE: {
|
| 2015 | unsigned Idx = 0;
|
| 2016 | serialization::DeclID ID = ReadDeclID(F, Record, Idx);
|
| 2017 | ASTDeclContextNameLookupTable *Table =
|
| 2018 | ASTDeclContextNameLookupTable::Create(
|
| 2019 | (const unsigned char *)BlobStart + Record[Idx++],
|
| 2020 | (const unsigned char *)BlobStart,
|
| 2021 | ASTDeclContextNameLookupTrait(*this, F));
|
| 2022 | if (ID == PREDEF_DECL_TRANSLATION_UNIT_ID) { // Is it the TU?
|
| 2023 | DeclContext *TU = Context.getTranslationUnitDecl();
|
| 2024 | F.DeclContextInfos[TU].NameLookupTableData = Table;
|
| 2025 | TU->setHasExternalVisibleStorage(true);
|
| 2026 | } else
|
| 2027 | PendingVisibleUpdates[ID].push_back(std::make_pair(Table, &F));
|
| 2028 | break;
|
| 2029 | }
|
| 2030 |
|
| 2031 | case IDENTIFIER_TABLE:
|
| 2032 | F.IdentifierTableData = BlobStart;
|
| 2033 | if (Record[0]) {
|
| 2034 | F.IdentifierLookupTable
|
| 2035 | = ASTIdentifierLookupTable::Create(
|
| 2036 | (const unsigned char *)F.IdentifierTableData + Record[0],
|
| 2037 | (const unsigned char *)F.IdentifierTableData,
|
| 2038 | ASTIdentifierLookupTrait(*this, F));
|
| 2039 |
|
| 2040 | PP.getIdentifierTable().setExternalIdentifierLookup(this);
|
| 2041 | }
|
| 2042 | break;
|
| 2043 |
|
| 2044 | case IDENTIFIER_OFFSET: {
|
| 2045 | if (F.LocalNumIdentifiers != 0) {
|
| 2046 | Error("duplicate IDENTIFIER_OFFSET record in AST file");
|
| 2047 | return true;
|
| 2048 | }
|
| 2049 | F.IdentifierOffsets = (const uint32_t *)BlobStart;
|
| 2050 | F.LocalNumIdentifiers = Record[0];
|
| 2051 | unsigned LocalBaseIdentifierID = Record[1];
|
| 2052 | F.BaseIdentifierID = getTotalNumIdentifiers();
|
| 2053 |
|
| 2054 | if (F.LocalNumIdentifiers > 0) {
|
| 2055 | // Introduce the global -> local mapping for identifiers within this
|
| 2056 | // module.
|
| 2057 | GlobalIdentifierMap.insert(std::make_pair(getTotalNumIdentifiers() + 1,
|
| 2058 | &F));
|
| 2059 |
|
| 2060 | // Introduce the local -> global mapping for identifiers within this
|
| 2061 | // module.
|
| 2062 | F.IdentifierRemap.insertOrReplace(
|
| 2063 | std::make_pair(LocalBaseIdentifierID,
|
| 2064 | F.BaseIdentifierID - LocalBaseIdentifierID));
|
| 2065 |
|
| 2066 | IdentifiersLoaded.resize(IdentifiersLoaded.size()
|
| 2067 | + F.LocalNumIdentifiers);
|
| 2068 | }
|
| 2069 | break;
|
| 2070 | }
|
| 2071 |
|
| 2072 | case EXTERNAL_DEFINITIONS:
|
| 2073 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2074 | ExternalDefinitions.push_back(getGlobalDeclID(F, Record[I]));
|
| 2075 | break;
|
| 2076 |
|
| 2077 | case SPECIAL_TYPES:
|
| 2078 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2079 | SpecialTypes.push_back(getGlobalTypeID(F, Record[I]));
|
| 2080 | break;
|
| 2081 |
|
| 2082 | case STATISTICS:
|
| 2083 | TotalNumStatements += Record[0];
|
| 2084 | TotalNumMacros += Record[1];
|
| 2085 | TotalLexicalDeclContexts += Record[2];
|
| 2086 | TotalVisibleDeclContexts += Record[3];
|
| 2087 | break;
|
| 2088 |
|
| 2089 | case UNUSED_FILESCOPED_DECLS:
|
| 2090 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2091 | UnusedFileScopedDecls.push_back(getGlobalDeclID(F, Record[I]));
|
| 2092 | break;
|
| 2093 |
|
| 2094 | case DELEGATING_CTORS:
|
| 2095 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2096 | DelegatingCtorDecls.push_back(getGlobalDeclID(F, Record[I]));
|
| 2097 | break;
|
| 2098 |
|
| 2099 | case WEAK_UNDECLARED_IDENTIFIERS:
|
| 2100 | if (Record.size() % 4 != 0) {
|
| 2101 | Error("invalid weak identifiers record");
|
| 2102 | return true;
|
| 2103 | }
|
| 2104 |
|
| 2105 | // FIXME: Ignore weak undeclared identifiers from non-original PCH
|
| 2106 | // files. This isn't the way to do it :)
|
| 2107 | WeakUndeclaredIdentifiers.clear();
|
| 2108 |
|
| 2109 | // Translate the weak, undeclared identifiers into global IDs.
|
| 2110 | for (unsigned I = 0, N = Record.size(); I < N; /* in loop */) {
|
| 2111 | WeakUndeclaredIdentifiers.push_back(
|
| 2112 | getGlobalIdentifierID(F, Record[I++]));
|
| 2113 | WeakUndeclaredIdentifiers.push_back(
|
| 2114 | getGlobalIdentifierID(F, Record[I++]));
|
| 2115 | WeakUndeclaredIdentifiers.push_back(
|
| 2116 | ReadSourceLocation(F, Record, I).getRawEncoding());
|
| 2117 | WeakUndeclaredIdentifiers.push_back(Record[I++]);
|
| 2118 | }
|
| 2119 | break;
|
| 2120 |
|
| 2121 | case LOCALLY_SCOPED_EXTERNAL_DECLS:
|
| 2122 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2123 | LocallyScopedExternalDecls.push_back(getGlobalDeclID(F, Record[I]));
|
| 2124 | break;
|
| 2125 |
|
| 2126 | case SELECTOR_OFFSETS: {
|
| 2127 | F.SelectorOffsets = (const uint32_t *)BlobStart;
|
| 2128 | F.LocalNumSelectors = Record[0];
|
| 2129 | unsigned LocalBaseSelectorID = Record[1];
|
| 2130 | F.BaseSelectorID = getTotalNumSelectors();
|
| 2131 |
|
| 2132 | if (F.LocalNumSelectors > 0) {
|
| 2133 | // Introduce the global -> local mapping for selectors within this
|
| 2134 | // module.
|
| 2135 | GlobalSelectorMap.insert(std::make_pair(getTotalNumSelectors()+1, &F));
|
| 2136 |
|
| 2137 | // Introduce the local -> global mapping for selectors within this
|
| 2138 | // module.
|
| 2139 | F.SelectorRemap.insertOrReplace(
|
| 2140 | std::make_pair(LocalBaseSelectorID,
|
| 2141 | F.BaseSelectorID - LocalBaseSelectorID));
|
| 2142 |
|
| 2143 | SelectorsLoaded.resize(SelectorsLoaded.size() + F.LocalNumSelectors);
|
| 2144 | }
|
| 2145 | break;
|
| 2146 | }
|
| 2147 |
|
| 2148 | case METHOD_POOL:
|
| 2149 | F.SelectorLookupTableData = (const unsigned char *)BlobStart;
|
| 2150 | if (Record[0])
|
| 2151 | F.SelectorLookupTable
|
| 2152 | = ASTSelectorLookupTable::Create(
|
| 2153 | F.SelectorLookupTableData + Record[0],
|
| 2154 | F.SelectorLookupTableData,
|
| 2155 | ASTSelectorLookupTrait(*this, F));
|
| 2156 | TotalNumMethodPoolEntries += Record[1];
|
| 2157 | break;
|
| 2158 |
|
| 2159 | case REFERENCED_SELECTOR_POOL:
|
| 2160 | if (!Record.empty()) {
|
| 2161 | for (unsigned Idx = 0, N = Record.size() - 1; Idx < N; /* in loop */) {
|
| 2162 | ReferencedSelectorsData.push_back(getGlobalSelectorID(F,
|
| 2163 | Record[Idx++]));
|
| 2164 | ReferencedSelectorsData.push_back(ReadSourceLocation(F, Record, Idx).
|
| 2165 | getRawEncoding());
|
| 2166 | }
|
| 2167 | }
|
| 2168 | break;
|
| 2169 |
|
| 2170 | case PP_COUNTER_VALUE:
|
| 2171 | if (!Record.empty() && Listener)
|
| 2172 | Listener->ReadCounter(F, Record[0]);
|
| 2173 | break;
|
| 2174 |
|
| 2175 | case FILE_SORTED_DECLS:
|
| 2176 | F.FileSortedDecls = (const DeclID *)BlobStart;
|
| 2177 | F.NumFileSortedDecls = Record[0];
|
| 2178 | break;
|
| 2179 |
|
| 2180 | case SOURCE_LOCATION_OFFSETS: {
|
| 2181 | F.SLocEntryOffsets = (const uint32_t *)BlobStart;
|
| 2182 | F.LocalNumSLocEntries = Record[0];
|
| 2183 | unsigned SLocSpaceSize = Record[1];
|
| 2184 | llvm::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) =
|
| 2185 | SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries,
|
| 2186 | SLocSpaceSize);
|
| 2187 | // Make our entry in the range map. BaseID is negative and growing, so
|
| 2188 | // we invert it. Because we invert it, though, we need the other end of
|
| 2189 | // the range.
|
| 2190 | unsigned RangeStart =
|
| 2191 | unsigned(-F.SLocEntryBaseID) - F.LocalNumSLocEntries + 1;
|
| 2192 | GlobalSLocEntryMap.insert(std::make_pair(RangeStart, &F));
|
| 2193 | F.FirstLoc = SourceLocation::getFromRawEncoding(F.SLocEntryBaseOffset);
|
| 2194 |
|
| 2195 | // SLocEntryBaseOffset is lower than MaxLoadedOffset and decreasing.
|
| 2196 | assert((F.SLocEntryBaseOffset & (1U << 31U)) == 0);
|
| 2197 | GlobalSLocOffsetMap.insert(
|
| 2198 | std::make_pair(SourceManager::MaxLoadedOffset - F.SLocEntryBaseOffset
|
| 2199 | - SLocSpaceSize,&F));
|
| 2200 |
|
| 2201 | // Initialize the remapping table.
|
| 2202 | // Invalid stays invalid.
|
| 2203 | F.SLocRemap.insert(std::make_pair(0U, 0));
|
| 2204 | // This module. Base was 2 when being compiled.
|
| 2205 | F.SLocRemap.insert(std::make_pair(2U,
|
| 2206 | static_cast<int>(F.SLocEntryBaseOffset - 2)));
|
| 2207 |
|
| 2208 | TotalNumSLocEntries += F.LocalNumSLocEntries;
|
| 2209 | break;
|
| 2210 | }
|
| 2211 |
|
| 2212 | case MODULE_OFFSET_MAP: {
|
| 2213 | // Additional remapping information.
|
| 2214 | const unsigned char *Data = (const unsigned char*)BlobStart;
|
| 2215 | const unsigned char *DataEnd = Data + BlobLen;
|
| 2216 |
|
| 2217 | // Continuous range maps we may be updating in our module.
|
| 2218 | ContinuousRangeMap<uint32_t, int, 2>::Builder SLocRemap(F.SLocRemap);
|
| 2219 | ContinuousRangeMap<uint32_t, int, 2>::Builder
|
| 2220 | IdentifierRemap(F.IdentifierRemap);
|
| 2221 | ContinuousRangeMap<uint32_t, int, 2>::Builder
|
| 2222 | MacroRemap(F.MacroRemap);
|
| 2223 | ContinuousRangeMap<uint32_t, int, 2>::Builder
|
| 2224 | PreprocessedEntityRemap(F.PreprocessedEntityRemap);
|
| 2225 | ContinuousRangeMap<uint32_t, int, 2>::Builder
|
| 2226 | SubmoduleRemap(F.SubmoduleRemap);
|
| 2227 | ContinuousRangeMap<uint32_t, int, 2>::Builder
|
| 2228 | SelectorRemap(F.SelectorRemap);
|
| 2229 | ContinuousRangeMap<uint32_t, int, 2>::Builder DeclRemap(F.DeclRemap);
|
| 2230 | ContinuousRangeMap<uint32_t, int, 2>::Builder TypeRemap(F.TypeRemap);
|
| 2231 |
|
| 2232 | while(Data < DataEnd) {
|
| 2233 | uint16_t Len = io::ReadUnalignedLE16(Data);
|
| 2234 | StringRef Name = StringRef((const char*)Data, Len);
|
| 2235 | Data += Len;
|
| 2236 | ModuleFile *OM = ModuleMgr.lookup(Name);
|
| 2237 | if (!OM) {
|
| 2238 | Error("SourceLocation remap refers to unknown module");
|
| 2239 | return true;
|
| 2240 | }
|
| 2241 |
|
| 2242 | uint32_t SLocOffset = io::ReadUnalignedLE32(Data);
|
| 2243 | uint32_t IdentifierIDOffset = io::ReadUnalignedLE32(Data);
|
| 2244 | uint32_t MacroIDOffset = io::ReadUnalignedLE32(Data);
|
| 2245 | uint32_t PreprocessedEntityIDOffset = io::ReadUnalignedLE32(Data);
|
| 2246 | uint32_t SubmoduleIDOffset = io::ReadUnalignedLE32(Data);
|
| 2247 | uint32_t SelectorIDOffset = io::ReadUnalignedLE32(Data);
|
| 2248 | uint32_t DeclIDOffset = io::ReadUnalignedLE32(Data);
|
| 2249 | uint32_t TypeIndexOffset = io::ReadUnalignedLE32(Data);
|
| 2250 |
|
| 2251 | // Source location offset is mapped to OM->SLocEntryBaseOffset.
|
| 2252 | SLocRemap.insert(std::make_pair(SLocOffset,
|
| 2253 | static_cast<int>(OM->SLocEntryBaseOffset - SLocOffset)));
|
| 2254 | IdentifierRemap.insert(
|
| 2255 | std::make_pair(IdentifierIDOffset,
|
| 2256 | OM->BaseIdentifierID - IdentifierIDOffset));
|
| 2257 | MacroRemap.insert(std::make_pair(MacroIDOffset,
|
| 2258 | OM->BaseMacroID - MacroIDOffset));
|
| 2259 | PreprocessedEntityRemap.insert(
|
| 2260 | std::make_pair(PreprocessedEntityIDOffset,
|
| 2261 | OM->BasePreprocessedEntityID - PreprocessedEntityIDOffset));
|
| 2262 | SubmoduleRemap.insert(std::make_pair(SubmoduleIDOffset,
|
| 2263 | OM->BaseSubmoduleID - SubmoduleIDOffset));
|
| 2264 | SelectorRemap.insert(std::make_pair(SelectorIDOffset,
|
| 2265 | OM->BaseSelectorID - SelectorIDOffset));
|
| 2266 | DeclRemap.insert(std::make_pair(DeclIDOffset,
|
| 2267 | OM->BaseDeclID - DeclIDOffset));
|
| 2268 |
|
| 2269 | TypeRemap.insert(std::make_pair(TypeIndexOffset,
|
| 2270 | OM->BaseTypeIndex - TypeIndexOffset));
|
| 2271 |
|
| 2272 | // Global -> local mappings.
|
| 2273 | F.GlobalToLocalDeclIDs[OM] = DeclIDOffset;
|
| 2274 | }
|
| 2275 | break;
|
| 2276 | }
|
| 2277 |
|
| 2278 | case SOURCE_MANAGER_LINE_TABLE:
|
| 2279 | if (ParseLineTable(F, Record))
|
| 2280 | return true;
|
| 2281 | break;
|
| 2282 |
|
| 2283 | case SOURCE_LOCATION_PRELOADS: {
|
| 2284 | // Need to transform from the local view (1-based IDs) to the global view,
|
| 2285 | // which is based off F.SLocEntryBaseID.
|
| 2286 | if (!F.PreloadSLocEntries.empty()) {
|
| 2287 | Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file");
|
| 2288 | return true;
|
| 2289 | }
|
| 2290 |
|
| 2291 | F.PreloadSLocEntries.swap(Record);
|
| 2292 | break;
|
| 2293 | }
|
| 2294 |
|
| 2295 | case EXT_VECTOR_DECLS:
|
| 2296 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2297 | ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I]));
|
| 2298 | break;
|
| 2299 |
|
| 2300 | case VTABLE_USES:
|
| 2301 | if (Record.size() % 3 != 0) {
|
| 2302 | Error("Invalid VTABLE_USES record");
|
| 2303 | return true;
|
| 2304 | }
|
| 2305 |
|
| 2306 | // Later tables overwrite earlier ones.
|
| 2307 | // FIXME: Modules will have some trouble with this. This is clearly not
|
| 2308 | // the right way to do this.
|
| 2309 | VTableUses.clear();
|
| 2310 |
|
| 2311 | for (unsigned Idx = 0, N = Record.size(); Idx != N; /* In loop */) {
|
| 2312 | VTableUses.push_back(getGlobalDeclID(F, Record[Idx++]));
|
| 2313 | VTableUses.push_back(
|
| 2314 | ReadSourceLocation(F, Record, Idx).getRawEncoding());
|
| 2315 | VTableUses.push_back(Record[Idx++]);
|
| 2316 | }
|
| 2317 | break;
|
| 2318 |
|
| 2319 | case DYNAMIC_CLASSES:
|
| 2320 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2321 | DynamicClasses.push_back(getGlobalDeclID(F, Record[I]));
|
| 2322 | break;
|
| 2323 |
|
| 2324 | case PENDING_IMPLICIT_INSTANTIATIONS:
|
| 2325 | if (PendingInstantiations.size() % 2 != 0) {
|
| 2326 | Error("Invalid existing PendingInstantiations");
|
| 2327 | return true;
|
| 2328 | }
|
| 2329 |
|
| 2330 | if (Record.size() % 2 != 0) {
|
| 2331 | Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block");
|
| 2332 | return true;
|
| 2333 | }
|
| 2334 |
|
| 2335 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
|
| 2336 | PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++]));
|
| 2337 | PendingInstantiations.push_back(
|
| 2338 | ReadSourceLocation(F, Record, I).getRawEncoding());
|
| 2339 | }
|
| 2340 | break;
|
| 2341 |
|
| 2342 | case SEMA_DECL_REFS:
|
| 2343 | // Later tables overwrite earlier ones.
|
| 2344 | // FIXME: Modules will have some trouble with this.
|
| 2345 | SemaDeclRefs.clear();
|
| 2346 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2347 | SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I]));
|
| 2348 | break;
|
| 2349 |
|
| 2350 | case PPD_ENTITIES_OFFSETS: {
|
| 2351 | F.PreprocessedEntityOffsets = (const PPEntityOffset *)BlobStart;
|
| 2352 | assert(BlobLen % sizeof(PPEntityOffset) == 0);
|
| 2353 | F.NumPreprocessedEntities = BlobLen / sizeof(PPEntityOffset);
|
| 2354 |
|
| 2355 | unsigned LocalBasePreprocessedEntityID = Record[0];
|
| 2356 |
|
| 2357 | unsigned StartingID;
|
| 2358 | if (!PP.getPreprocessingRecord())
|
| 2359 | PP.createPreprocessingRecord();
|
| 2360 | if (!PP.getPreprocessingRecord()->getExternalSource())
|
| 2361 | PP.getPreprocessingRecord()->SetExternalSource(*this);
|
| 2362 | StartingID
|
| 2363 | = PP.getPreprocessingRecord()
|
| 2364 | ->allocateLoadedEntities(F.NumPreprocessedEntities);
|
| 2365 | F.BasePreprocessedEntityID = StartingID;
|
| 2366 |
|
| 2367 | if (F.NumPreprocessedEntities > 0) {
|
| 2368 | // Introduce the global -> local mapping for preprocessed entities in
|
| 2369 | // this module.
|
| 2370 | GlobalPreprocessedEntityMap.insert(std::make_pair(StartingID, &F));
|
| 2371 |
|
| 2372 | // Introduce the local -> global mapping for preprocessed entities in
|
| 2373 | // this module.
|
| 2374 | F.PreprocessedEntityRemap.insertOrReplace(
|
| 2375 | std::make_pair(LocalBasePreprocessedEntityID,
|
| 2376 | F.BasePreprocessedEntityID - LocalBasePreprocessedEntityID));
|
| 2377 | }
|
| 2378 |
|
| 2379 | break;
|
| 2380 | }
|
| 2381 |
|
| 2382 | case DECL_UPDATE_OFFSETS: {
|
| 2383 | if (Record.size() % 2 != 0) {
|
| 2384 | Error("invalid DECL_UPDATE_OFFSETS block in AST file");
|
| 2385 | return true;
|
| 2386 | }
|
| 2387 | for (unsigned I = 0, N = Record.size(); I != N; I += 2)
|
| 2388 | DeclUpdateOffsets[getGlobalDeclID(F, Record[I])]
|
| 2389 | .push_back(std::make_pair(&F, Record[I+1]));
|
| 2390 | break;
|
| 2391 | }
|
| 2392 |
|
| 2393 | case DECL_REPLACEMENTS: {
|
| 2394 | if (Record.size() % 3 != 0) {
|
| 2395 | Error("invalid DECL_REPLACEMENTS block in AST file");
|
| 2396 | return true;
|
| 2397 | }
|
| 2398 | for (unsigned I = 0, N = Record.size(); I != N; I += 3)
|
| 2399 | ReplacedDecls[getGlobalDeclID(F, Record[I])]
|
| 2400 | = ReplacedDeclInfo(&F, Record[I+1], Record[I+2]);
|
| 2401 | break;
|
| 2402 | }
|
| 2403 |
|
| 2404 | case OBJC_CATEGORIES_MAP: {
|
| 2405 | if (F.LocalNumObjCCategoriesInMap != 0) {
|
| 2406 | Error("duplicate OBJC_CATEGORIES_MAP record in AST file");
|
| 2407 | return true;
|
| 2408 | }
|
| 2409 |
|
| 2410 | F.LocalNumObjCCategoriesInMap = Record[0];
|
| 2411 | F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)BlobStart;
|
| 2412 | break;
|
| 2413 | }
|
| 2414 |
|
| 2415 | case OBJC_CATEGORIES:
|
| 2416 | F.ObjCCategories.swap(Record);
|
| 2417 | break;
|
| 2418 |
|
| 2419 | case CXX_BASE_SPECIFIER_OFFSETS: {
|
| 2420 | if (F.LocalNumCXXBaseSpecifiers != 0) {
|
| 2421 | Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file");
|
| 2422 | return true;
|
| 2423 | }
|
| 2424 |
|
| 2425 | F.LocalNumCXXBaseSpecifiers = Record[0];
|
| 2426 | F.CXXBaseSpecifiersOffsets = (const uint32_t *)BlobStart;
|
| 2427 | NumCXXBaseSpecifiersLoaded += F.LocalNumCXXBaseSpecifiers;
|
| 2428 | break;
|
| 2429 | }
|
| 2430 |
|
| 2431 | case DIAG_PRAGMA_MAPPINGS:
|
| 2432 | if (F.PragmaDiagMappings.empty())
|
| 2433 | F.PragmaDiagMappings.swap(Record);
|
| 2434 | else
|
| 2435 | F.PragmaDiagMappings.insert(F.PragmaDiagMappings.end(),
|
| 2436 | Record.begin(), Record.end());
|
| 2437 | break;
|
| 2438 |
|
| 2439 | case CUDA_SPECIAL_DECL_REFS:
|
| 2440 | // Later tables overwrite earlier ones.
|
| 2441 | // FIXME: Modules will have trouble with this.
|
| 2442 | CUDASpecialDeclRefs.clear();
|
| 2443 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2444 | CUDASpecialDeclRefs.push_back(getGlobalDeclID(F, Record[I]));
|
| 2445 | break;
|
| 2446 |
|
| 2447 | case HEADER_SEARCH_TABLE: {
|
| 2448 | F.HeaderFileInfoTableData = BlobStart;
|
| 2449 | F.LocalNumHeaderFileInfos = Record[1];
|
| 2450 | F.HeaderFileFrameworkStrings = BlobStart + Record[2];
|
| 2451 | if (Record[0]) {
|
| 2452 | F.HeaderFileInfoTable
|
| 2453 | = HeaderFileInfoLookupTable::Create(
|
| 2454 | (const unsigned char *)F.HeaderFileInfoTableData + Record[0],
|
| 2455 | (const unsigned char *)F.HeaderFileInfoTableData,
|
| 2456 | HeaderFileInfoTrait(*this, F,
|
| 2457 | &PP.getHeaderSearchInfo(),
|
| 2458 | BlobStart + Record[2]));
|
| 2459 |
|
| 2460 | PP.getHeaderSearchInfo().SetExternalSource(this);
|
| 2461 | if (!PP.getHeaderSearchInfo().getExternalLookup())
|
| 2462 | PP.getHeaderSearchInfo().SetExternalLookup(this);
|
| 2463 | }
|
| 2464 | break;
|
| 2465 | }
|
| 2466 |
|
| 2467 | case FP_PRAGMA_OPTIONS:
|
| 2468 | // Later tables overwrite earlier ones.
|
| 2469 | FPPragmaOptions.swap(Record);
|
| 2470 | break;
|
| 2471 |
|
| 2472 | case OPENCL_EXTENSIONS:
|
| 2473 | // Later tables overwrite earlier ones.
|
| 2474 | OpenCLExtensions.swap(Record);
|
| 2475 | break;
|
| 2476 |
|
| 2477 | case TENTATIVE_DEFINITIONS:
|
| 2478 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2479 | TentativeDefinitions.push_back(getGlobalDeclID(F, Record[I]));
|
| 2480 | break;
|
| 2481 |
|
| 2482 | case KNOWN_NAMESPACES:
|
| 2483 | for (unsigned I = 0, N = Record.size(); I != N; ++I)
|
| 2484 | KnownNamespaces.push_back(getGlobalDeclID(F, Record[I]));
|
| 2485 | break;
|
| 2486 |
|
| 2487 | case IMPORTED_MODULES: {
|
| 2488 | if (F.Kind != MK_Module) {
|
| 2489 | // If we aren't loading a module (which has its own exports), make
|
| 2490 | // all of the imported modules visible.
|
| 2491 | // FIXME: Deal with macros-only imports.
|
| 2492 | for (unsigned I = 0, N = Record.size(); I != N; ++I) {
|
| 2493 | if (unsigned GlobalID = getGlobalSubmoduleID(F, Record[I]))
|
| 2494 | ImportedModules.push_back(GlobalID);
|
| 2495 | }
|
| 2496 | }
|
| 2497 | break;
|
| 2498 | }
|
| 2499 |
|
| 2500 | case LOCAL_REDECLARATIONS: {
|
| 2501 | F.RedeclarationChains.swap(Record);
|
| 2502 | break;
|
| 2503 | }
|
| 2504 |
|
| 2505 | case LOCAL_REDECLARATIONS_MAP: {
|
| 2506 | if (F.LocalNumRedeclarationsInMap != 0) {
|
| 2507 | Error("duplicate LOCAL_REDECLARATIONS_MAP record in AST file");
|
| 2508 | return true;
|
| 2509 | }
|
| 2510 |
|
| 2511 | F.LocalNumRedeclarationsInMap = Record[0];
|
| 2512 | F.RedeclarationsMap = (const LocalRedeclarationsInfo *)BlobStart;
|
| 2513 | break;
|
| 2514 | }
|
| 2515 |
|
| 2516 | case MERGED_DECLARATIONS: {
|
| 2517 | for (unsigned Idx = 0; Idx < Record.size(); /* increment in loop */) {
|
| 2518 | GlobalDeclID CanonID = getGlobalDeclID(F, Record[Idx++]);
|
| 2519 | SmallVectorImpl<GlobalDeclID> &Decls = StoredMergedDecls[CanonID];
|
| 2520 | for (unsigned N = Record[Idx++]; N > 0; --N)
|
| 2521 | Decls.push_back(getGlobalDeclID(F, Record[Idx++]));
|
| 2522 | }
|
| 2523 | break;
|
| 2524 | }
|
| 2525 |
|
| 2526 | case MACRO_OFFSET: {
|
| 2527 | if (F.LocalNumMacros != 0) {
|
| 2528 | Error("duplicate MACRO_OFFSET record in AST file");
|
| 2529 | return true;
|
| 2530 | }
|
| 2531 | F.MacroOffsets = (const uint32_t *)BlobStart;
|
| 2532 | F.LocalNumMacros = Record[0];
|
| 2533 | unsigned LocalBaseMacroID = Record[1];
|
| 2534 | F.BaseMacroID = getTotalNumMacros();
|
| 2535 |
|
| 2536 | if (F.LocalNumMacros > 0) {
|
| 2537 | // Introduce the global -> local mapping for macros within this module.
|
| 2538 | GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F));
|
| 2539 |
|
| 2540 | // Introduce the local -> global mapping for macros within this module.
|
| 2541 | F.MacroRemap.insertOrReplace(
|
| 2542 | std::make_pair(LocalBaseMacroID,
|
| 2543 | F.BaseMacroID - LocalBaseMacroID));
|
| 2544 |
|
| 2545 | MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros);
|
| 2546 | }
|
| 2547 | break;
|
| 2548 | }
|
| 2549 |
|
| 2550 | case MACRO_UPDATES: {
|
| 2551 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
|
| 2552 | MacroID ID = getGlobalMacroID(F, Record[I++]);
|
| 2553 | if (I == N)
|
| 2554 | break;
|
| 2555 |
|
| 2556 | SourceLocation UndefLoc = ReadSourceLocation(F, Record, I);
|
| 2557 | SubmoduleID SubmoduleID = getGlobalSubmoduleID(F, Record[I++]);;
|
| 2558 | MacroUpdate Update;
|
| 2559 | Update.UndefLoc = UndefLoc;
|
| 2560 | MacroUpdates[ID].push_back(std::make_pair(SubmoduleID, Update));
|
| 2561 | }
|
| 2562 | break;
|
| 2563 | }
|
| 2564 | }
|
| 2565 | }
|
| 2566 | Error("premature end of bitstream in AST file");
|
| 2567 | return true;
|
| 2568 | }
|
| 2569 |
|
| 2570 | void ASTReader::makeNamesVisible(const HiddenNames &Names) {
|
| 2571 | for (unsigned I = 0, N = Names.size(); I != N; ++I) {
|
| 2572 | switch (Names[I].getKind()) {
|
| 2573 | case HiddenName::Declaration:
|
| 2574 | Names[I].getDecl()->Hidden = false;
|
| 2575 | break;
|
| 2576 |
|
| 2577 | case HiddenName::MacroVisibility: {
|
| 2578 | std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro();
|
| 2579 | Macro.second->setHidden(!Macro.second->isPublic());
|
| 2580 | if (Macro.second->isDefined()) {
|
| 2581 | PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second);
|
| 2582 | }
|
| 2583 | break;
|
| 2584 | }
|
| 2585 |
|
| 2586 | case HiddenName::MacroUndef: {
|
| 2587 | std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro();
|
| 2588 | if (Macro.second->isDefined()) {
|
| 2589 | Macro.second->setUndefLoc(Names[I].getMacroUndefLoc());
|
| 2590 | if (PPMutationListener *Listener = PP.getPPMutationListener())
|
| 2591 | Listener->UndefinedMacro(Macro.second);
|
| 2592 | PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second);
|
| 2593 | }
|
| 2594 | break;
|
| 2595 | }
|
| 2596 | }
|
| 2597 | }
|
| 2598 | }
|
| 2599 |
|
| 2600 | void ASTReader::makeModuleVisible(Module *Mod,
|
| 2601 | Module::NameVisibilityKind NameVisibility) {
|
| 2602 | llvm::SmallPtrSet<Module *, 4> Visited;
|
| 2603 | llvm::SmallVector<Module *, 4> Stack;
|
| 2604 | Stack.push_back(Mod);
|
| 2605 | while (!Stack.empty()) {
|
| 2606 | Mod = Stack.back();
|
| 2607 | Stack.pop_back();
|
| 2608 |
|
| 2609 | if (NameVisibility <= Mod->NameVisibility) {
|
| 2610 | // This module already has this level of visibility (or greater), so
|
| 2611 | // there is nothing more to do.
|
| 2612 | continue;
|
| 2613 | }
|
| 2614 |
|
| 2615 | if (!Mod->isAvailable()) {
|
| 2616 | // Modules that aren't available cannot be made visible.
|
| 2617 | continue;
|
| 2618 | }
|
| 2619 |
|
| 2620 | // Update the module's name visibility.
|
| 2621 | Mod->NameVisibility = NameVisibility;
|
| 2622 |
|
| 2623 | // If we've already deserialized any names from this module,
|
| 2624 | // mark them as visible.
|
| 2625 | HiddenNamesMapType::iterator Hidden = HiddenNamesMap.find(Mod);
|
| 2626 | if (Hidden != HiddenNamesMap.end()) {
|
| 2627 | makeNamesVisible(Hidden->second);
|
| 2628 | HiddenNamesMap.erase(Hidden);
|
| 2629 | }
|
| 2630 |
|
| 2631 | // Push any non-explicit submodules onto the stack to be marked as
|
| 2632 | // visible.
|
| 2633 | for (Module::submodule_iterator Sub = Mod->submodule_begin(),
|
| 2634 | SubEnd = Mod->submodule_end();
|
| 2635 | Sub != SubEnd; ++Sub) {
|
| 2636 | if (!(*Sub)->IsExplicit && Visited.insert(*Sub))
|
| 2637 | Stack.push_back(*Sub);
|
| 2638 | }
|
| 2639 |
|
| 2640 | // Push any exported modules onto the stack to be marked as visible.
|
| 2641 | bool AnyWildcard = false;
|
| 2642 | bool UnrestrictedWildcard = false;
|
| 2643 | llvm::SmallVector<Module *, 4> WildcardRestrictions;
|
| 2644 | for (unsigned I = 0, N = Mod->Exports.size(); I != N; ++I) {
|
| 2645 | Module *Exported = Mod->Exports[I].getPointer();
|
| 2646 | if (!Mod->Exports[I].getInt()) {
|
| 2647 | // Export a named module directly; no wildcards involved.
|
| 2648 | if (Visited.insert(Exported))
|
| 2649 | Stack.push_back(Exported);
|
| 2650 |
|
| 2651 | continue;
|
| 2652 | }
|
| 2653 |
|
| 2654 | // Wildcard export: export all of the imported modules that match
|
| 2655 | // the given pattern.
|
| 2656 | AnyWildcard = true;
|
| 2657 | if (UnrestrictedWildcard)
|
| 2658 | continue;
|
| 2659 |
|
| 2660 | if (Module *Restriction = Mod->Exports[I].getPointer())
|
| 2661 | WildcardRestrictions.push_back(Restriction);
|
| 2662 | else {
|
| 2663 | WildcardRestrictions.clear();
|
| 2664 | UnrestrictedWildcard = true;
|
| 2665 | }
|
| 2666 | }
|
| 2667 |
|
| 2668 | // If there were any wildcards, push any imported modules that were
|
| 2669 | // re-exported by the wildcard restriction.
|
| 2670 | if (!AnyWildcard)
|
| 2671 | continue;
|
| 2672 |
|
| 2673 | for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) {
|
| 2674 | Module *Imported = Mod->Imports[I];
|
| 2675 | if (!Visited.insert(Imported))
|
| 2676 | continue;
|
| 2677 |
|
| 2678 | bool Acceptable = UnrestrictedWildcard;
|
| 2679 | if (!Acceptable) {
|
| 2680 | // Check whether this module meets one of the restrictions.
|
| 2681 | for (unsigned R = 0, NR = WildcardRestrictions.size(); R != NR; ++R) {
|
| 2682 | Module *Restriction = WildcardRestrictions[R];
|
| 2683 | if (Imported == Restriction || Imported->isSubModuleOf(Restriction)) {
|
| 2684 | Acceptable = true;
|
| 2685 | break;
|
| 2686 | }
|
| 2687 | }
|
| 2688 | }
|
| 2689 |
|
| 2690 | if (!Acceptable)
|
| 2691 | continue;
|
| 2692 |
|
| 2693 | Stack.push_back(Imported);
|
| 2694 | }
|
| 2695 | }
|
| 2696 | }
|
| 2697 |
|
| 2698 | ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName,
|
| 2699 | ModuleKind Type,
|
| 2700 | SourceLocation ImportLoc,
|
| 2701 | unsigned ClientLoadCapabilities) {
|
| 2702 | // Bump the generation number.
|
| 2703 | unsigned PreviousGeneration = CurrentGeneration++;
|
| 2704 |
|
| 2705 | unsigned NumModules = ModuleMgr.size();
|
| 2706 | llvm::SmallVector<ImportedModule, 4> Loaded;
|
| 2707 | switch(ASTReadResult ReadResult = ReadASTCore(FileName, Type, ImportLoc,
|
| 2708 | /*ImportedBy=*/0, Loaded,
|
| 2709 | ClientLoadCapabilities)) {
|
| 2710 | case Failure:
|
| 2711 | case OutOfDate:
|
| 2712 | case VersionMismatch:
|
| 2713 | case ConfigurationMismatch:
|
| 2714 | case HadErrors:
|
| 2715 | ModuleMgr.removeModules(ModuleMgr.begin() + NumModules, ModuleMgr.end());
|
| 2716 | return ReadResult;
|
| 2717 |
|
| 2718 | case Success:
|
| 2719 | break;
|
| 2720 | }
|
| 2721 |
|
| 2722 | // Here comes stuff that we only do once the entire chain is loaded.
|
| 2723 |
|
| 2724 | // Load the AST blocks of all of the modules that we loaded.
|
| 2725 | for (llvm::SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(),
|
| 2726 | MEnd = Loaded.end();
|
| 2727 | M != MEnd; ++M) {
|
| 2728 | ModuleFile &F = *M->Mod;
|
| 2729 |
|
| 2730 | // Read the AST block.
|
| 2731 | if (ReadASTBlock(F))
|
| 2732 | return Failure;
|
| 2733 |
|
| 2734 | // Once read, set the ModuleFile bit base offset and update the size in
|
| 2735 | // bits of all files we've seen.
|
| 2736 | F.GlobalBitOffset = TotalModulesSizeInBits;
|
| 2737 | TotalModulesSizeInBits += F.SizeInBits;
|
| 2738 | GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F));
|
| 2739 |
|
| 2740 | // Preload SLocEntries.
|
| 2741 | for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) {
|
| 2742 | int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID;
|
| 2743 | // Load it through the SourceManager and don't call ReadSLocEntry()
|
| 2744 | // directly because the entry may have already been loaded in which case
|
| 2745 | // calling ReadSLocEntry() directly would trigger an assertion in
|
| 2746 | // SourceManager.
|
| 2747 | SourceMgr.getLoadedSLocEntryByID(Index);
|
| 2748 | }
|
| 2749 | }
|
| 2750 |
|
| 2751 | // Setup the import locations.
|
| 2752 | for (llvm::SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(),
|
| 2753 | MEnd = Loaded.end();
|
| 2754 | M != MEnd; ++M) {
|
| 2755 | ModuleFile &F = *M->Mod;
|
| 2756 | if (!M->ImportedBy)
|
| 2757 | F.ImportLoc = M->ImportLoc;
|
| 2758 | else
|
| 2759 | F.ImportLoc = ReadSourceLocation(*M->ImportedBy,
|
| 2760 | M->ImportLoc.getRawEncoding());
|
| 2761 | }
|
| 2762 |
|
| 2763 | // Mark all of the identifiers in the identifier table as being out of date,
|
| 2764 | // so that various accessors know to check the loaded modules when the
|
| 2765 | // identifier is used.
|
| 2766 | for (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(),
|
| 2767 | IdEnd = PP.getIdentifierTable().end();
|
| 2768 | Id != IdEnd; ++Id)
|
| 2769 | Id->second->setOutOfDate(true);
|
| 2770 |
|
| 2771 | // Resolve any unresolved module exports.
|
| 2772 | for (unsigned I = 0, N = UnresolvedModuleImportExports.size(); I != N; ++I) {
|
| 2773 | UnresolvedModuleImportExport &Unresolved = UnresolvedModuleImportExports[I];
|
| 2774 | SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID);
|
| 2775 | Module *ResolvedMod = getSubmodule(GlobalID);
|
| 2776 |
|
| 2777 | if (Unresolved.IsImport) {
|
| 2778 | if (ResolvedMod)
|
| 2779 | Unresolved.Mod->Imports.push_back(ResolvedMod);
|
| 2780 | continue;
|
| 2781 | }
|
| 2782 |
|
| 2783 | if (ResolvedMod || Unresolved.IsWildcard)
|
| 2784 | Unresolved.Mod->Exports.push_back(
|
| 2785 | Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard));
|
| 2786 | }
|
| 2787 | UnresolvedModuleImportExports.clear();
|
| 2788 |
|
| 2789 | InitializeContext();
|
| 2790 |
|
| 2791 | if (DeserializationListener)
|
| 2792 | DeserializationListener->ReaderInitialized(this);
|
| 2793 |
|
| 2794 | ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule();
|
| 2795 | if (!PrimaryModule.OriginalSourceFileID.isInvalid()) {
|
| 2796 | PrimaryModule.OriginalSourceFileID
|
| 2797 | = FileID::get(PrimaryModule.SLocEntryBaseID
|
| 2798 | + PrimaryModule.OriginalSourceFileID.getOpaqueValue() - 1);
|
| 2799 |
|
| 2800 | // If this AST file is a precompiled preamble, then set the
|
| 2801 | // preamble file ID of the source manager to the file source file
|
| 2802 | // from which the preamble was built.
|
| 2803 | if (Type == MK_Preamble) {
|
| 2804 | SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID);
|
| 2805 | } else if (Type == MK_MainFile) {
|
| 2806 | SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID);
|
| 2807 | }
|
| 2808 | }
|
| 2809 |
|
| 2810 | // For any Objective-C class definitions we have already loaded, make sure
|
| 2811 | // that we load any additional categories.
|
| 2812 | for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) {
|
| 2813 | loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(),
|
| 2814 | ObjCClassesLoaded[I],
|
| 2815 | PreviousGeneration);
|
| 2816 | }
|
| 2817 |
|
| 2818 | return Success;
|
| 2819 | }
|
| 2820 |
|
| 2821 | ASTReader::ASTReadResult
|
| 2822 | ASTReader::ReadASTCore(StringRef FileName,
|
| 2823 | ModuleKind Type,
|
| 2824 | SourceLocation ImportLoc,
|
| 2825 | ModuleFile *ImportedBy,
|
| 2826 | llvm::SmallVectorImpl<ImportedModule> &Loaded,
|
| 2827 | unsigned ClientLoadCapabilities) {
|
| 2828 | ModuleFile *M;
|
| 2829 | bool NewModule;
|
| 2830 | std::string ErrorStr;
|
| 2831 | llvm::tie(M, NewModule) = ModuleMgr.addModule(FileName, Type, ImportLoc,
|
| 2832 | ImportedBy, CurrentGeneration,
|
| 2833 | ErrorStr);
|
| 2834 |
|
| 2835 | if (!M) {
|
| 2836 | // We couldn't load the module.
|
| 2837 | std::string Msg = "Unable to load module \"" + FileName.str() + "\": "
|
| 2838 | + ErrorStr;
|
| 2839 | Error(Msg);
|
| 2840 | return Failure;
|
| 2841 | }
|
| 2842 |
|
| 2843 | if (!NewModule) {
|
| 2844 | // We've already loaded this module.
|
| 2845 | return Success;
|
| 2846 | }
|
| 2847 |
|
| 2848 | // FIXME: This seems rather a hack. Should CurrentDir be part of the
|
| 2849 | // module?
|
| 2850 | if (FileName != "-") {
|
| 2851 | CurrentDir = llvm::sys::path::parent_path(FileName);
|
| 2852 | if (CurrentDir.empty()) CurrentDir = ".";
|
| 2853 | }
|
| 2854 |
|
| 2855 | ModuleFile &F = *M;
|
| 2856 | llvm::BitstreamCursor &Stream = F.Stream;
|
| 2857 | Stream.init(F.StreamFile);
|
| 2858 | F.SizeInBits = F.Buffer->getBufferSize() * 8;
|
| 2859 |
|
| 2860 | // Sniff for the signature.
|
| 2861 | if (Stream.Read(8) != 'C' ||
|
| 2862 | Stream.Read(8) != 'P' ||
|
| 2863 | Stream.Read(8) != 'C' ||
|
| 2864 | Stream.Read(8) != 'H') {
|
| 2865 | Diag(diag::err_not_a_pch_file) << FileName;
|
| 2866 | return Failure;
|
| 2867 | }
|
| 2868 |
|
| 2869 | // This is used for compatibility with older PCH formats.
|
| 2870 | bool HaveReadControlBlock = false;
|
| 2871 |
|
| 2872 | while (!Stream.AtEndOfStream()) {
|
| 2873 | unsigned Code = Stream.ReadCode();
|
| 2874 |
|
| 2875 | if (Code != llvm::bitc::ENTER_SUBBLOCK) {
|
| 2876 | Error("invalid record at top-level of AST file");
|
| 2877 | return Failure;
|
| 2878 | }
|
| 2879 |
|
| 2880 | unsigned BlockID = Stream.ReadSubBlockID();
|
| 2881 |
|
| 2882 | // We only know the control subblock ID.
|
| 2883 | switch (BlockID) {
|
| 2884 | case llvm::bitc::BLOCKINFO_BLOCK_ID:
|
| 2885 | if (Stream.ReadBlockInfoBlock()) {
|
| 2886 | Error("malformed BlockInfoBlock in AST file");
|
| 2887 | return Failure;
|
| 2888 | }
|
| 2889 | break;
|
| 2890 | case CONTROL_BLOCK_ID:
|
| 2891 | HaveReadControlBlock = true;
|
| 2892 | switch (ReadControlBlock(F, Loaded, ClientLoadCapabilities)) {
|
| 2893 | case Success:
|
| 2894 | break;
|
| 2895 |
|
| 2896 | case Failure: return Failure;
|
| 2897 | case OutOfDate: return OutOfDate;
|
| 2898 | case VersionMismatch: return VersionMismatch;
|
| 2899 | case ConfigurationMismatch: return ConfigurationMismatch;
|
| 2900 | case HadErrors: return HadErrors;
|
| 2901 | }
|
| 2902 | break;
|
| 2903 | case AST_BLOCK_ID:
|
| 2904 | if (!HaveReadControlBlock) {
|
| 2905 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0)
|
| 2906 | Diag(diag::warn_pch_version_too_old);
|
| 2907 | return VersionMismatch;
|
| 2908 | }
|
| 2909 |
|
| 2910 | // Record that we've loaded this module.
|
| 2911 | Loaded.push_back(ImportedModule(M, ImportedBy, ImportLoc));
|
| 2912 | return Success;
|
| 2913 |
|
| 2914 | default:
|
| 2915 | if (Stream.SkipBlock()) {
|
| 2916 | Error("malformed block record in AST file");
|
| 2917 | return Failure;
|
| 2918 | }
|
| 2919 | break;
|
| 2920 | }
|
| 2921 | }
|
| 2922 |
|
| 2923 | return Success;
|
| 2924 | }
|
| 2925 |
|
| 2926 | void ASTReader::InitializeContext() {
|
| 2927 | // If there's a listener, notify them that we "read" the translation unit.
|
| 2928 | if (DeserializationListener)
|
| 2929 | DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID,
|
| 2930 | Context.getTranslationUnitDecl());
|
| 2931 |
|
| 2932 | // Make sure we load the declaration update records for the translation unit,
|
| 2933 | // if there are any.
|
| 2934 | loadDeclUpdateRecords(PREDEF_DECL_TRANSLATION_UNIT_ID,
|
| 2935 | Context.getTranslationUnitDecl());
|
| 2936 |
|
| 2937 | // FIXME: Find a better way to deal with collisions between these
|
| 2938 | // built-in types. Right now, we just ignore the problem.
|
| 2939 |
|
| 2940 | // Load the special types.
|
| 2941 | if (SpecialTypes.size() >= NumSpecialTypeIDs) {
|
| 2942 | if (unsigned String = SpecialTypes[SPECIAL_TYPE_CF_CONSTANT_STRING]) {
|
| 2943 | if (!Context.CFConstantStringTypeDecl)
|
| 2944 | Context.setCFConstantStringType(GetType(String));
|
| 2945 | }
|
| 2946 |
|
| 2947 | if (unsigned File = SpecialTypes[SPECIAL_TYPE_FILE]) {
|
| 2948 | QualType FileType = GetType(File);
|
| 2949 | if (FileType.isNull()) {
|
| 2950 | Error("FILE type is NULL");
|
| 2951 | return;
|
| 2952 | }
|
| 2953 |
|
| 2954 | if (!Context.FILEDecl) {
|
| 2955 | if (const TypedefType *Typedef = FileType->getAs<TypedefType>())
|
| 2956 | Context.setFILEDecl(Typedef->getDecl());
|
| 2957 | else {
|
| 2958 | const TagType *Tag = FileType->getAs<TagType>();
|
| 2959 | if (!Tag) {
|
| 2960 | Error("Invalid FILE type in AST file");
|
| 2961 | return;
|
| 2962 | }
|
| 2963 | Context.setFILEDecl(Tag->getDecl());
|
| 2964 | }
|
| 2965 | }
|
| 2966 | }
|
| 2967 |
|
| 2968 | if (unsigned Jmp_buf = SpecialTypes[SPECIAL_TYPE_JMP_BUF]) {
|
| 2969 | QualType Jmp_bufType = GetType(Jmp_buf);
|
| 2970 | if (Jmp_bufType.isNull()) {
|
| 2971 | Error("jmp_buf type is NULL");
|
| 2972 | return;
|
| 2973 | }
|
| 2974 |
|
| 2975 | if (!Context.jmp_bufDecl) {
|
| 2976 | if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>())
|
| 2977 | Context.setjmp_bufDecl(Typedef->getDecl());
|
| 2978 | else {
|
| 2979 | const TagType *Tag = Jmp_bufType->getAs<TagType>();
|
| 2980 | if (!Tag) {
|
| 2981 | Error("Invalid jmp_buf type in AST file");
|
| 2982 | return;
|
| 2983 | }
|
| 2984 | Context.setjmp_bufDecl(Tag->getDecl());
|
| 2985 | }
|
| 2986 | }
|
| 2987 | }
|
| 2988 |
|
| 2989 | if (unsigned Sigjmp_buf = SpecialTypes[SPECIAL_TYPE_SIGJMP_BUF]) {
|
| 2990 | QualType Sigjmp_bufType = GetType(Sigjmp_buf);
|
| 2991 | if (Sigjmp_bufType.isNull()) {
|
| 2992 | Error("sigjmp_buf type is NULL");
|
| 2993 | return;
|
| 2994 | }
|
| 2995 |
|
| 2996 | if (!Context.sigjmp_bufDecl) {
|
| 2997 | if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>())
|
| 2998 | Context.setsigjmp_bufDecl(Typedef->getDecl());
|
| 2999 | else {
|
| 3000 | const TagType *Tag = Sigjmp_bufType->getAs<TagType>();
|
| 3001 | assert(Tag && "Invalid sigjmp_buf type in AST file");
|
| 3002 | Context.setsigjmp_bufDecl(Tag->getDecl());
|
| 3003 | }
|
| 3004 | }
|
| 3005 | }
|
| 3006 |
|
| 3007 | if (unsigned ObjCIdRedef
|
| 3008 | = SpecialTypes[SPECIAL_TYPE_OBJC_ID_REDEFINITION]) {
|
| 3009 | if (Context.ObjCIdRedefinitionType.isNull())
|
| 3010 | Context.ObjCIdRedefinitionType = GetType(ObjCIdRedef);
|
| 3011 | }
|
| 3012 |
|
| 3013 | if (unsigned ObjCClassRedef
|
| 3014 | = SpecialTypes[SPECIAL_TYPE_OBJC_CLASS_REDEFINITION]) {
|
| 3015 | if (Context.ObjCClassRedefinitionType.isNull())
|
| 3016 | Context.ObjCClassRedefinitionType = GetType(ObjCClassRedef);
|
| 3017 | }
|
| 3018 |
|
| 3019 | if (unsigned ObjCSelRedef
|
| 3020 | = SpecialTypes[SPECIAL_TYPE_OBJC_SEL_REDEFINITION]) {
|
| 3021 | if (Context.ObjCSelRedefinitionType.isNull())
|
| 3022 | Context.ObjCSelRedefinitionType = GetType(ObjCSelRedef);
|
| 3023 | }
|
| 3024 |
|
| 3025 | if (unsigned Ucontext_t = SpecialTypes[SPECIAL_TYPE_UCONTEXT_T]) {
|
| 3026 | QualType Ucontext_tType = GetType(Ucontext_t);
|
| 3027 | if (Ucontext_tType.isNull()) {
|
| 3028 | Error("ucontext_t type is NULL");
|
| 3029 | return;
|
| 3030 | }
|
| 3031 |
|
| 3032 | if (!Context.ucontext_tDecl) {
|
| 3033 | if (const TypedefType *Typedef = Ucontext_tType->getAs<TypedefType>())
|
| 3034 | Context.setucontext_tDecl(Typedef->getDecl());
|
| 3035 | else {
|
| 3036 | const TagType *Tag = Ucontext_tType->getAs<TagType>();
|
| 3037 | assert(Tag && "Invalid ucontext_t type in AST file");
|
| 3038 | Context.setucontext_tDecl(Tag->getDecl());
|
| 3039 | }
|
| 3040 | }
|
| 3041 | }
|
| 3042 | }
|
| 3043 |
|
| 3044 | ReadPragmaDiagnosticMappings(Context.getDiagnostics());
|
| 3045 |
|
| 3046 | // If there were any CUDA special declarations, deserialize them.
|
| 3047 | if (!CUDASpecialDeclRefs.empty()) {
|
| 3048 | assert(CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!");
|
| 3049 | Context.setcudaConfigureCallDecl(
|
| 3050 | cast<FunctionDecl>(GetDecl(CUDASpecialDeclRefs[0])));
|
| 3051 | }
|
| 3052 |
|
| 3053 | // Re-export any modules that were imported by a non-module AST file.
|
| 3054 | for (unsigned I = 0, N = ImportedModules.size(); I != N; ++I) {
|
| 3055 | if (Module *Imported = getSubmodule(ImportedModules[I]))
|
| 3056 | makeModuleVisible(Imported, Module::AllVisible);
|
| 3057 | }
|
| 3058 | ImportedModules.clear();
|
| 3059 | }
|
| 3060 |
|
| 3061 | void ASTReader::finalizeForWriting() {
|
| 3062 | for (HiddenNamesMapType::iterator Hidden = HiddenNamesMap.begin(),
|
| 3063 | HiddenEnd = HiddenNamesMap.end();
|
| 3064 | Hidden != HiddenEnd; ++Hidden) {
|
| 3065 | makeNamesVisible(Hidden->second);
|
| 3066 | }
|
| 3067 | HiddenNamesMap.clear();
|
| 3068 | }
|
| 3069 |
|
| 3070 | /// \brief Retrieve the name of the original source file name
|
| 3071 | /// directly from the AST file, without actually loading the AST
|
| 3072 | /// file.
|
| 3073 | std::string ASTReader::getOriginalSourceFile(const std::string &ASTFileName,
|
| 3074 | FileManager &FileMgr,
|
| 3075 | DiagnosticsEngine &Diags) {
|
| 3076 | // Open the AST file.
|
| 3077 | std::string ErrStr;
|
| 3078 | OwningPtr<llvm::MemoryBuffer> Buffer;
|
| 3079 | Buffer.reset(FileMgr.getBufferForFile(ASTFileName, &ErrStr));
|
| 3080 | if (!Buffer) {
|
| 3081 | Diags.Report(diag::err_fe_unable_to_read_pch_file) << ASTFileName << ErrStr;
|
| 3082 | return std::string();
|
| 3083 | }
|
| 3084 |
|
| 3085 | // Initialize the stream
|
| 3086 | llvm::BitstreamReader StreamFile;
|
| 3087 | llvm::BitstreamCursor Stream;
|
| 3088 | StreamFile.init((const unsigned char *)Buffer->getBufferStart(),
|
| 3089 | (const unsigned char *)Buffer->getBufferEnd());
|
| 3090 | Stream.init(StreamFile);
|
| 3091 |
|
| 3092 | // Sniff for the signature.
|
| 3093 | if (Stream.Read(8) != 'C' ||
|
| 3094 | Stream.Read(8) != 'P' ||
|
| 3095 | Stream.Read(8) != 'C' ||
|
| 3096 | Stream.Read(8) != 'H') {
|
| 3097 | Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName;
|
| 3098 | return std::string();
|
| 3099 | }
|
| 3100 |
|
| 3101 | RecordData Record;
|
| 3102 | while (!Stream.AtEndOfStream()) {
|
| 3103 | unsigned Code = Stream.ReadCode();
|
| 3104 |
|
| 3105 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 3106 | unsigned BlockID = Stream.ReadSubBlockID();
|
| 3107 |
|
| 3108 | // We only know the AST subblock ID.
|
| 3109 | switch (BlockID) {
|
| 3110 | case CONTROL_BLOCK_ID:
|
| 3111 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
|
| 3112 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
|
| 3113 | return std::string();
|
| 3114 | }
|
| 3115 | break;
|
| 3116 |
|
| 3117 | default:
|
| 3118 | if (Stream.SkipBlock()) {
|
| 3119 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
|
| 3120 | return std::string();
|
| 3121 | }
|
| 3122 | break;
|
| 3123 | }
|
| 3124 | continue;
|
| 3125 | }
|
| 3126 |
|
| 3127 | if (Code == llvm::bitc::END_BLOCK) {
|
| 3128 | if (Stream.ReadBlockEnd()) {
|
| 3129 | Diags.Report(diag::err_fe_pch_error_at_end_block) << ASTFileName;
|
| 3130 | return std::string();
|
| 3131 | }
|
| 3132 | continue;
|
| 3133 | }
|
| 3134 |
|
| 3135 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 3136 | Stream.ReadAbbrevRecord();
|
| 3137 | continue;
|
| 3138 | }
|
| 3139 |
|
| 3140 | Record.clear();
|
| 3141 | const char *BlobStart = 0;
|
| 3142 | unsigned BlobLen = 0;
|
| 3143 | if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen) == ORIGINAL_FILE)
|
| 3144 | return std::string(BlobStart, BlobLen);
|
| 3145 | }
|
| 3146 |
|
| 3147 | return std::string();
|
| 3148 | }
|
| 3149 |
|
| 3150 | namespace {
|
| 3151 | class SimplePCHValidator : public ASTReaderListener {
|
| 3152 | const LangOptions &ExistingLangOpts;
|
| 3153 | const TargetOptions &ExistingTargetOpts;
|
| 3154 | const PreprocessorOptions &ExistingPPOpts;
|
| 3155 | FileManager &FileMgr;
|
| 3156 |
|
| 3157 | public:
|
| 3158 | SimplePCHValidator(const LangOptions &ExistingLangOpts,
|
| 3159 | const TargetOptions &ExistingTargetOpts,
|
| 3160 | const PreprocessorOptions &ExistingPPOpts,
|
| 3161 | FileManager &FileMgr)
|
| 3162 | : ExistingLangOpts(ExistingLangOpts),
|
| 3163 | ExistingTargetOpts(ExistingTargetOpts),
|
| 3164 | ExistingPPOpts(ExistingPPOpts),
|
| 3165 | FileMgr(FileMgr)
|
| 3166 | {
|
| 3167 | }
|
| 3168 |
|
| 3169 | virtual bool ReadLanguageOptions(const LangOptions &LangOpts,
|
| 3170 | bool Complain) {
|
| 3171 | return checkLanguageOptions(ExistingLangOpts, LangOpts, 0);
|
| 3172 | }
|
| 3173 | virtual bool ReadTargetOptions(const TargetOptions &TargetOpts,
|
| 3174 | bool Complain) {
|
| 3175 | return checkTargetOptions(ExistingTargetOpts, TargetOpts, 0);
|
| 3176 | }
|
| 3177 | virtual bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
|
| 3178 | bool Complain,
|
| 3179 | std::string &SuggestedPredefines) {
|
| 3180 | return checkPreprocessorOptions(ExistingPPOpts, PPOpts, 0, FileMgr,
|
| 3181 | SuggestedPredefines);
|
| 3182 | }
|
| 3183 | };
|
| 3184 | }
|
| 3185 |
|
| 3186 | bool ASTReader::readASTFileControlBlock(StringRef Filename,
|
| 3187 | FileManager &FileMgr,
|
| 3188 | ASTReaderListener &Listener) {
|
| 3189 | // Open the AST file.
|
| 3190 | std::string ErrStr;
|
| 3191 | OwningPtr<llvm::MemoryBuffer> Buffer;
|
| 3192 | Buffer.reset(FileMgr.getBufferForFile(Filename, &ErrStr));
|
| 3193 | if (!Buffer) {
|
| 3194 | return true;
|
| 3195 | }
|
| 3196 |
|
| 3197 | // Initialize the stream
|
| 3198 | llvm::BitstreamReader StreamFile;
|
| 3199 | llvm::BitstreamCursor Stream;
|
| 3200 | StreamFile.init((const unsigned char *)Buffer->getBufferStart(),
|
| 3201 | (const unsigned char *)Buffer->getBufferEnd());
|
| 3202 | Stream.init(StreamFile);
|
| 3203 |
|
| 3204 | // Sniff for the signature.
|
| 3205 | if (Stream.Read(8) != 'C' ||
|
| 3206 | Stream.Read(8) != 'P' ||
|
| 3207 | Stream.Read(8) != 'C' ||
|
| 3208 | Stream.Read(8) != 'H') {
|
| 3209 | return true;
|
| 3210 | }
|
| 3211 |
|
| 3212 | RecordData Record;
|
| 3213 | bool InControlBlock = false;
|
| 3214 | while (!Stream.AtEndOfStream()) {
|
| 3215 | unsigned Code = Stream.ReadCode();
|
| 3216 |
|
| 3217 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 3218 | unsigned BlockID = Stream.ReadSubBlockID();
|
| 3219 |
|
| 3220 | // We only know the control subblock ID.
|
| 3221 | switch (BlockID) {
|
| 3222 | case CONTROL_BLOCK_ID:
|
| 3223 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
|
| 3224 | return true;
|
| 3225 | } else {
|
| 3226 | InControlBlock = true;
|
| 3227 | }
|
| 3228 | break;
|
| 3229 |
|
| 3230 | default:
|
| 3231 | if (Stream.SkipBlock())
|
| 3232 | return true;
|
| 3233 | break;
|
| 3234 | }
|
| 3235 | continue;
|
| 3236 | }
|
| 3237 |
|
| 3238 | if (Code == llvm::bitc::END_BLOCK) {
|
| 3239 | if (Stream.ReadBlockEnd()) {
|
| 3240 | return true;
|
| 3241 | }
|
| 3242 |
|
| 3243 | InControlBlock = false;
|
| 3244 | continue;
|
| 3245 | }
|
| 3246 |
|
| 3247 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 3248 | Stream.ReadAbbrevRecord();
|
| 3249 | continue;
|
| 3250 | }
|
| 3251 |
|
| 3252 | Record.clear();
|
| 3253 | const char *BlobStart = 0;
|
| 3254 | unsigned BlobLen = 0;
|
| 3255 | unsigned RecCode = Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen);
|
| 3256 | if (InControlBlock) {
|
| 3257 | switch ((ControlRecordTypes)RecCode) {
|
| 3258 | case METADATA: {
|
| 3259 | if (Record[0] != VERSION_MAJOR) {
|
| 3260 | return true;
|
| 3261 | }
|
| 3262 |
|
| 3263 | const std::string &CurBranch = getClangFullRepositoryVersion();
|
| 3264 | StringRef ASTBranch(BlobStart, BlobLen);
|
| 3265 | if (StringRef(CurBranch) != ASTBranch)
|
| 3266 | return true;
|
| 3267 |
|
| 3268 | break;
|
| 3269 | }
|
| 3270 | case LANGUAGE_OPTIONS:
|
| 3271 | if (ParseLanguageOptions(Record, false, Listener))
|
| 3272 | return true;
|
| 3273 | break;
|
| 3274 |
|
| 3275 | case TARGET_OPTIONS:
|
| 3276 | if (ParseTargetOptions(Record, false, Listener))
|
| 3277 | return true;
|
| 3278 | break;
|
| 3279 |
|
| 3280 | case DIAGNOSTIC_OPTIONS:
|
| 3281 | if (ParseDiagnosticOptions(Record, false, Listener))
|
| 3282 | return true;
|
| 3283 | break;
|
| 3284 |
|
| 3285 | case FILE_SYSTEM_OPTIONS:
|
| 3286 | if (ParseFileSystemOptions(Record, false, Listener))
|
| 3287 | return true;
|
| 3288 | break;
|
| 3289 |
|
| 3290 | case HEADER_SEARCH_OPTIONS:
|
| 3291 | if (ParseHeaderSearchOptions(Record, false, Listener))
|
| 3292 | return true;
|
| 3293 | break;
|
| 3294 |
|
| 3295 | case PREPROCESSOR_OPTIONS: {
|
| 3296 | std::string IgnoredSuggestedPredefines;
|
| 3297 | if (ParsePreprocessorOptions(Record, false, Listener,
|
| 3298 | IgnoredSuggestedPredefines))
|
| 3299 | return true;
|
| 3300 | break;
|
| 3301 | }
|
| 3302 |
|
| 3303 | default:
|
| 3304 | // No other validation to perform.
|
| 3305 | break;
|
| 3306 | }
|
| 3307 | }
|
| 3308 | }
|
| 3309 |
|
| 3310 | return false;
|
| 3311 | }
|
| 3312 |
|
| 3313 |
|
| 3314 | bool ASTReader::isAcceptableASTFile(StringRef Filename,
|
| 3315 | FileManager &FileMgr,
|
| 3316 | const LangOptions &LangOpts,
|
| 3317 | const TargetOptions &TargetOpts,
|
| 3318 | const PreprocessorOptions &PPOpts) {
|
| 3319 | SimplePCHValidator validator(LangOpts, TargetOpts, PPOpts, FileMgr);
|
| 3320 | return !readASTFileControlBlock(Filename, FileMgr, validator);
|
| 3321 | }
|
| 3322 |
|
| 3323 | bool ASTReader::ReadSubmoduleBlock(ModuleFile &F) {
|
| 3324 | // Enter the submodule block.
|
| 3325 | if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) {
|
| 3326 | Error("malformed submodule block record in AST file");
|
| 3327 | return true;
|
| 3328 | }
|
| 3329 |
|
| 3330 | ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap();
|
| 3331 | bool First = true;
|
| 3332 | Module *CurrentModule = 0;
|
| 3333 | RecordData Record;
|
| 3334 | while (true) {
|
| 3335 | unsigned Code = F.Stream.ReadCode();
|
| 3336 | if (Code == llvm::bitc::END_BLOCK) {
|
| 3337 | if (F.Stream.ReadBlockEnd()) {
|
| 3338 | Error("error at end of submodule block in AST file");
|
| 3339 | return true;
|
| 3340 | }
|
| 3341 | return false;
|
| 3342 | }
|
| 3343 |
|
| 3344 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 3345 | // No known subblocks, always skip them.
|
| 3346 | F.Stream.ReadSubBlockID();
|
| 3347 | if (F.Stream.SkipBlock()) {
|
| 3348 | Error("malformed block record in AST file");
|
| 3349 | return true;
|
| 3350 | }
|
| 3351 | continue;
|
| 3352 | }
|
| 3353 |
|
| 3354 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 3355 | F.Stream.ReadAbbrevRecord();
|
| 3356 | continue;
|
| 3357 | }
|
| 3358 |
|
| 3359 | // Read a record.
|
| 3360 | const char *BlobStart;
|
| 3361 | unsigned BlobLen;
|
| 3362 | Record.clear();
|
| 3363 | switch (F.Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
|
| 3364 | default: // Default behavior: ignore.
|
| 3365 | break;
|
| 3366 |
|
| 3367 | case SUBMODULE_DEFINITION: {
|
| 3368 | if (First) {
|
| 3369 | Error("missing submodule metadata record at beginning of block");
|
| 3370 | return true;
|
| 3371 | }
|
| 3372 |
|
| 3373 | if (Record.size() < 7) {
|
| 3374 | Error("malformed module definition");
|
| 3375 | return true;
|
| 3376 | }
|
| 3377 |
|
| 3378 | StringRef Name(BlobStart, BlobLen);
|
| 3379 | SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[0]);
|
| 3380 | SubmoduleID Parent = getGlobalSubmoduleID(F, Record[1]);
|
| 3381 | bool IsFramework = Record[2];
|
| 3382 | bool IsExplicit = Record[3];
|
| 3383 | bool IsSystem = Record[4];
|
| 3384 | bool InferSubmodules = Record[5];
|
| 3385 | bool InferExplicitSubmodules = Record[6];
|
| 3386 | bool InferExportWildcard = Record[7];
|
| 3387 |
|
| 3388 | Module *ParentModule = 0;
|
| 3389 | if (Parent)
|
| 3390 | ParentModule = getSubmodule(Parent);
|
| 3391 |
|
| 3392 | // Retrieve this (sub)module from the module map, creating it if
|
| 3393 | // necessary.
|
| 3394 | CurrentModule = ModMap.findOrCreateModule(Name, ParentModule,
|
| 3395 | IsFramework,
|
| 3396 | IsExplicit).first;
|
| 3397 | SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS;
|
| 3398 | if (GlobalIndex >= SubmodulesLoaded.size() ||
|
| 3399 | SubmodulesLoaded[GlobalIndex]) {
|
| 3400 | Error("too many submodules");
|
| 3401 | return true;
|
| 3402 | }
|
| 3403 |
|
| 3404 | CurrentModule->setASTFile(F.File);
|
| 3405 | CurrentModule->IsFromModuleFile = true;
|
| 3406 | CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem;
|
| 3407 | CurrentModule->InferSubmodules = InferSubmodules;
|
| 3408 | CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules;
|
| 3409 | CurrentModule->InferExportWildcard = InferExportWildcard;
|
| 3410 | if (DeserializationListener)
|
| 3411 | DeserializationListener->ModuleRead(GlobalID, CurrentModule);
|
| 3412 |
|
| 3413 | SubmodulesLoaded[GlobalIndex] = CurrentModule;
|
| 3414 | break;
|
| 3415 | }
|
| 3416 |
|
| 3417 | case SUBMODULE_UMBRELLA_HEADER: {
|
| 3418 | if (First) {
|
| 3419 | Error("missing submodule metadata record at beginning of block");
|
| 3420 | return true;
|
| 3421 | }
|
| 3422 |
|
| 3423 | if (!CurrentModule)
|
| 3424 | break;
|
| 3425 |
|
| 3426 | StringRef FileName(BlobStart, BlobLen);
|
| 3427 | if (const FileEntry *Umbrella = PP.getFileManager().getFile(FileName)) {
|
| 3428 | if (!CurrentModule->getUmbrellaHeader())
|
| 3429 | ModMap.setUmbrellaHeader(CurrentModule, Umbrella);
|
| 3430 | else if (CurrentModule->getUmbrellaHeader() != Umbrella) {
|
| 3431 | Error("mismatched umbrella headers in submodule");
|
| 3432 | return true;
|
| 3433 | }
|
| 3434 | }
|
| 3435 | break;
|
| 3436 | }
|
| 3437 |
|
| 3438 | case SUBMODULE_HEADER: {
|
| 3439 | if (First) {
|
| 3440 | Error("missing submodule metadata record at beginning of block");
|
| 3441 | return true;
|
| 3442 | }
|
| 3443 |
|
| 3444 | if (!CurrentModule)
|
| 3445 | break;
|
| 3446 |
|
| 3447 | // FIXME: Be more lazy about this!
|
| 3448 | StringRef FileName(BlobStart, BlobLen);
|
| 3449 | if (const FileEntry *File = PP.getFileManager().getFile(FileName)) {
|
| 3450 | if (std::find(CurrentModule->Headers.begin(),
|
| 3451 | CurrentModule->Headers.end(),
|
| 3452 | File) == CurrentModule->Headers.end())
|
| 3453 | ModMap.addHeader(CurrentModule, File, false);
|
| 3454 | }
|
| 3455 | break;
|
| 3456 | }
|
| 3457 |
|
| 3458 | case SUBMODULE_EXCLUDED_HEADER: {
|
| 3459 | if (First) {
|
| 3460 | Error("missing submodule metadata record at beginning of block");
|
| 3461 | return true;
|
| 3462 | }
|
| 3463 |
|
| 3464 | if (!CurrentModule)
|
| 3465 | break;
|
| 3466 |
|
| 3467 | // FIXME: Be more lazy about this!
|
| 3468 | StringRef FileName(BlobStart, BlobLen);
|
| 3469 | if (const FileEntry *File = PP.getFileManager().getFile(FileName)) {
|
| 3470 | if (std::find(CurrentModule->Headers.begin(),
|
| 3471 | CurrentModule->Headers.end(),
|
| 3472 | File) == CurrentModule->Headers.end())
|
| 3473 | ModMap.addHeader(CurrentModule, File, true);
|
| 3474 | }
|
| 3475 | break;
|
| 3476 | }
|
| 3477 |
|
| 3478 | case SUBMODULE_TOPHEADER: {
|
| 3479 | if (First) {
|
| 3480 | Error("missing submodule metadata record at beginning of block");
|
| 3481 | return true;
|
| 3482 | }
|
| 3483 |
|
| 3484 | if (!CurrentModule)
|
| 3485 | break;
|
| 3486 |
|
| 3487 | // FIXME: Be more lazy about this!
|
| 3488 | StringRef FileName(BlobStart, BlobLen);
|
| 3489 | if (const FileEntry *File = PP.getFileManager().getFile(FileName))
|
| 3490 | CurrentModule->TopHeaders.insert(File);
|
| 3491 | break;
|
| 3492 | }
|
| 3493 |
|
| 3494 | case SUBMODULE_UMBRELLA_DIR: {
|
| 3495 | if (First) {
|
| 3496 | Error("missing submodule metadata record at beginning of block");
|
| 3497 | return true;
|
| 3498 | }
|
| 3499 |
|
| 3500 | if (!CurrentModule)
|
| 3501 | break;
|
| 3502 |
|
| 3503 | StringRef DirName(BlobStart, BlobLen);
|
| 3504 | if (const DirectoryEntry *Umbrella
|
| 3505 | = PP.getFileManager().getDirectory(DirName)) {
|
| 3506 | if (!CurrentModule->getUmbrellaDir())
|
| 3507 | ModMap.setUmbrellaDir(CurrentModule, Umbrella);
|
| 3508 | else if (CurrentModule->getUmbrellaDir() != Umbrella) {
|
| 3509 | Error("mismatched umbrella directories in submodule");
|
| 3510 | return true;
|
| 3511 | }
|
| 3512 | }
|
| 3513 | break;
|
| 3514 | }
|
| 3515 |
|
| 3516 | case SUBMODULE_METADATA: {
|
| 3517 | if (!First) {
|
| 3518 | Error("submodule metadata record not at beginning of block");
|
| 3519 | return true;
|
| 3520 | }
|
| 3521 | First = false;
|
| 3522 |
|
| 3523 | F.BaseSubmoduleID = getTotalNumSubmodules();
|
| 3524 | F.LocalNumSubmodules = Record[0];
|
| 3525 | unsigned LocalBaseSubmoduleID = Record[1];
|
| 3526 | if (F.LocalNumSubmodules > 0) {
|
| 3527 | // Introduce the global -> local mapping for submodules within this
|
| 3528 | // module.
|
| 3529 | GlobalSubmoduleMap.insert(std::make_pair(getTotalNumSubmodules()+1,&F));
|
| 3530 |
|
| 3531 | // Introduce the local -> global mapping for submodules within this
|
| 3532 | // module.
|
| 3533 | F.SubmoduleRemap.insertOrReplace(
|
| 3534 | std::make_pair(LocalBaseSubmoduleID,
|
| 3535 | F.BaseSubmoduleID - LocalBaseSubmoduleID));
|
| 3536 |
|
| 3537 | SubmodulesLoaded.resize(SubmodulesLoaded.size() + F.LocalNumSubmodules);
|
| 3538 | }
|
| 3539 | break;
|
| 3540 | }
|
| 3541 |
|
| 3542 | case SUBMODULE_IMPORTS: {
|
| 3543 | if (First) {
|
| 3544 | Error("missing submodule metadata record at beginning of block");
|
| 3545 | return true;
|
| 3546 | }
|
| 3547 |
|
| 3548 | if (!CurrentModule)
|
| 3549 | break;
|
| 3550 |
|
| 3551 | for (unsigned Idx = 0; Idx != Record.size(); ++Idx) {
|
| 3552 | UnresolvedModuleImportExport Unresolved;
|
| 3553 | Unresolved.File = &F;
|
| 3554 | Unresolved.Mod = CurrentModule;
|
| 3555 | Unresolved.ID = Record[Idx];
|
| 3556 | Unresolved.IsImport = true;
|
| 3557 | Unresolved.IsWildcard = false;
|
| 3558 | UnresolvedModuleImportExports.push_back(Unresolved);
|
| 3559 | }
|
| 3560 | break;
|
| 3561 | }
|
| 3562 |
|
| 3563 | case SUBMODULE_EXPORTS: {
|
| 3564 | if (First) {
|
| 3565 | Error("missing submodule metadata record at beginning of block");
|
| 3566 | return true;
|
| 3567 | }
|
| 3568 |
|
| 3569 | if (!CurrentModule)
|
| 3570 | break;
|
| 3571 |
|
| 3572 | for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) {
|
| 3573 | UnresolvedModuleImportExport Unresolved;
|
| 3574 | Unresolved.File = &F;
|
| 3575 | Unresolved.Mod = CurrentModule;
|
| 3576 | Unresolved.ID = Record[Idx];
|
| 3577 | Unresolved.IsImport = false;
|
| 3578 | Unresolved.IsWildcard = Record[Idx + 1];
|
| 3579 | UnresolvedModuleImportExports.push_back(Unresolved);
|
| 3580 | }
|
| 3581 |
|
| 3582 | // Once we've loaded the set of exports, there's no reason to keep
|
| 3583 | // the parsed, unresolved exports around.
|
| 3584 | CurrentModule->UnresolvedExports.clear();
|
| 3585 | break;
|
| 3586 | }
|
| 3587 | case SUBMODULE_REQUIRES: {
|
| 3588 | if (First) {
|
| 3589 | Error("missing submodule metadata record at beginning of block");
|
| 3590 | return true;
|
| 3591 | }
|
| 3592 |
|
| 3593 | if (!CurrentModule)
|
| 3594 | break;
|
| 3595 |
|
| 3596 | CurrentModule->addRequirement(StringRef(BlobStart, BlobLen),
|
| 3597 | Context.getLangOpts(),
|
| 3598 | Context.getTargetInfo());
|
| 3599 | break;
|
| 3600 | }
|
| 3601 | }
|
| 3602 | }
|
| 3603 | }
|
| 3604 |
|
| 3605 | /// \brief Parse the record that corresponds to a LangOptions data
|
| 3606 | /// structure.
|
| 3607 | ///
|
| 3608 | /// This routine parses the language options from the AST file and then gives
|
| 3609 | /// them to the AST listener if one is set.
|
| 3610 | ///
|
| 3611 | /// \returns true if the listener deems the file unacceptable, false otherwise.
|
| 3612 | bool ASTReader::ParseLanguageOptions(const RecordData &Record,
|
| 3613 | bool Complain,
|
| 3614 | ASTReaderListener &Listener) {
|
| 3615 | LangOptions LangOpts;
|
| 3616 | unsigned Idx = 0;
|
| 3617 | #define LANGOPT(Name, Bits, Default, Description) \
|
| 3618 | LangOpts.Name = Record[Idx++];
|
| 3619 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
|
| 3620 | LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++]));
|
| 3621 | #include "clang/Basic/LangOptions.def"
|
| 3622 |
|
| 3623 | ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++];
|
| 3624 | VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx);
|
| 3625 | LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion);
|
| 3626 |
|
| 3627 | unsigned Length = Record[Idx++];
|
| 3628 | LangOpts.CurrentModule.assign(Record.begin() + Idx,
|
| 3629 | Record.begin() + Idx + Length);
|
| 3630 | return Listener.ReadLanguageOptions(LangOpts, Complain);
|
| 3631 | }
|
| 3632 |
|
| 3633 | bool ASTReader::ParseTargetOptions(const RecordData &Record,
|
| 3634 | bool Complain,
|
| 3635 | ASTReaderListener &Listener) {
|
| 3636 | unsigned Idx = 0;
|
| 3637 | TargetOptions TargetOpts;
|
| 3638 | TargetOpts.Triple = ReadString(Record, Idx);
|
| 3639 | TargetOpts.CPU = ReadString(Record, Idx);
|
| 3640 | TargetOpts.ABI = ReadString(Record, Idx);
|
| 3641 | TargetOpts.CXXABI = ReadString(Record, Idx);
|
| 3642 | TargetOpts.LinkerVersion = ReadString(Record, Idx);
|
| 3643 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3644 | TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx));
|
| 3645 | }
|
| 3646 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3647 | TargetOpts.Features.push_back(ReadString(Record, Idx));
|
| 3648 | }
|
| 3649 |
|
| 3650 | return Listener.ReadTargetOptions(TargetOpts, Complain);
|
| 3651 | }
|
| 3652 |
|
| 3653 | bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain,
|
| 3654 | ASTReaderListener &Listener) {
|
| 3655 | DiagnosticOptions DiagOpts;
|
| 3656 | unsigned Idx = 0;
|
| 3657 | #define DIAGOPT(Name, Bits, Default) DiagOpts.Name = Record[Idx++];
|
| 3658 | #define ENUM_DIAGOPT(Name, Type, Bits, Default) \
|
| 3659 | DiagOpts.set##Name(static_cast<Type>(Record[Idx++]));
|
| 3660 | #include "clang/Basic/DiagnosticOptions.def"
|
| 3661 |
|
| 3662 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3663 | DiagOpts.Warnings.push_back(ReadString(Record, Idx));
|
| 3664 | }
|
| 3665 |
|
| 3666 | return Listener.ReadDiagnosticOptions(DiagOpts, Complain);
|
| 3667 | }
|
| 3668 |
|
| 3669 | bool ASTReader::ParseFileSystemOptions(const RecordData &Record, bool Complain,
|
| 3670 | ASTReaderListener &Listener) {
|
| 3671 | FileSystemOptions FSOpts;
|
| 3672 | unsigned Idx = 0;
|
| 3673 | FSOpts.WorkingDir = ReadString(Record, Idx);
|
| 3674 | return Listener.ReadFileSystemOptions(FSOpts, Complain);
|
| 3675 | }
|
| 3676 |
|
| 3677 | bool ASTReader::ParseHeaderSearchOptions(const RecordData &Record,
|
| 3678 | bool Complain,
|
| 3679 | ASTReaderListener &Listener) {
|
| 3680 | HeaderSearchOptions HSOpts;
|
| 3681 | unsigned Idx = 0;
|
| 3682 | HSOpts.Sysroot = ReadString(Record, Idx);
|
| 3683 |
|
| 3684 | // Include entries.
|
| 3685 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3686 | std::string Path = ReadString(Record, Idx);
|
| 3687 | frontend::IncludeDirGroup Group
|
| 3688 | = static_cast<frontend::IncludeDirGroup>(Record[Idx++]);
|
| 3689 | bool IsUserSupplied = Record[Idx++];
|
| 3690 | bool IsFramework = Record[Idx++];
|
| 3691 | bool IgnoreSysRoot = Record[Idx++];
|
| 3692 | bool IsInternal = Record[Idx++];
|
| 3693 | bool ImplicitExternC = Record[Idx++];
|
| 3694 | HSOpts.UserEntries.push_back(
|
| 3695 | HeaderSearchOptions::Entry(Path, Group, IsUserSupplied, IsFramework,
|
| 3696 | IgnoreSysRoot, IsInternal, ImplicitExternC));
|
| 3697 | }
|
| 3698 |
|
| 3699 | // System header prefixes.
|
| 3700 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3701 | std::string Prefix = ReadString(Record, Idx);
|
| 3702 | bool IsSystemHeader = Record[Idx++];
|
| 3703 | HSOpts.SystemHeaderPrefixes.push_back(
|
| 3704 | HeaderSearchOptions::SystemHeaderPrefix(Prefix, IsSystemHeader));
|
| 3705 | }
|
| 3706 |
|
| 3707 | HSOpts.ResourceDir = ReadString(Record, Idx);
|
| 3708 | HSOpts.ModuleCachePath = ReadString(Record, Idx);
|
| 3709 | HSOpts.DisableModuleHash = Record[Idx++];
|
| 3710 | HSOpts.UseBuiltinIncludes = Record[Idx++];
|
| 3711 | HSOpts.UseStandardSystemIncludes = Record[Idx++];
|
| 3712 | HSOpts.UseStandardCXXIncludes = Record[Idx++];
|
| 3713 | HSOpts.UseLibcxx = Record[Idx++];
|
| 3714 |
|
| 3715 | return Listener.ReadHeaderSearchOptions(HSOpts, Complain);
|
| 3716 | }
|
| 3717 |
|
| 3718 | bool ASTReader::ParsePreprocessorOptions(const RecordData &Record,
|
| 3719 | bool Complain,
|
| 3720 | ASTReaderListener &Listener,
|
| 3721 | std::string &SuggestedPredefines) {
|
| 3722 | PreprocessorOptions PPOpts;
|
| 3723 | unsigned Idx = 0;
|
| 3724 |
|
| 3725 | // Macro definitions/undefs
|
| 3726 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3727 | std::string Macro = ReadString(Record, Idx);
|
| 3728 | bool IsUndef = Record[Idx++];
|
| 3729 | PPOpts.Macros.push_back(std::make_pair(Macro, IsUndef));
|
| 3730 | }
|
| 3731 |
|
| 3732 | // Includes
|
| 3733 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3734 | PPOpts.Includes.push_back(ReadString(Record, Idx));
|
| 3735 | }
|
| 3736 |
|
| 3737 | // Macro Includes
|
| 3738 | for (unsigned N = Record[Idx++]; N; --N) {
|
| 3739 | PPOpts.MacroIncludes.push_back(ReadString(Record, Idx));
|
| 3740 | }
|
| 3741 |
|
| 3742 | PPOpts.UsePredefines = Record[Idx++];
|
| 3743 | PPOpts.ImplicitPCHInclude = ReadString(Record, Idx);
|
| 3744 | PPOpts.ImplicitPTHInclude = ReadString(Record, Idx);
|
| 3745 | PPOpts.ObjCXXARCStandardLibrary =
|
| 3746 | static_cast<ObjCXXARCStandardLibraryKind>(Record[Idx++]);
|
| 3747 | SuggestedPredefines.clear();
|
| 3748 | return Listener.ReadPreprocessorOptions(PPOpts, Complain,
|
| 3749 | SuggestedPredefines);
|
| 3750 | }
|
| 3751 |
|
| 3752 | std::pair<ModuleFile *, unsigned>
|
| 3753 | ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) {
|
| 3754 | GlobalPreprocessedEntityMapType::iterator
|
| 3755 | I = GlobalPreprocessedEntityMap.find(GlobalIndex);
|
| 3756 | assert(I != GlobalPreprocessedEntityMap.end() &&
|
| 3757 | "Corrupted global preprocessed entity map");
|
| 3758 | ModuleFile *M = I->second;
|
| 3759 | unsigned LocalIndex = GlobalIndex - M->BasePreprocessedEntityID;
|
| 3760 | return std::make_pair(M, LocalIndex);
|
| 3761 | }
|
| 3762 |
|
| 3763 | std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator>
|
| 3764 | ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const {
|
| 3765 | if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord())
|
| 3766 | return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID,
|
| 3767 | Mod.NumPreprocessedEntities);
|
| 3768 |
|
| 3769 | return std::make_pair(PreprocessingRecord::iterator(),
|
| 3770 | PreprocessingRecord::iterator());
|
| 3771 | }
|
| 3772 |
|
| 3773 | std::pair<ASTReader::ModuleDeclIterator, ASTReader::ModuleDeclIterator>
|
| 3774 | ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) {
|
| 3775 | return std::make_pair(ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls),
|
| 3776 | ModuleDeclIterator(this, &Mod,
|
| 3777 | Mod.FileSortedDecls + Mod.NumFileSortedDecls));
|
| 3778 | }
|
| 3779 |
|
| 3780 | PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) {
|
| 3781 | PreprocessedEntityID PPID = Index+1;
|
| 3782 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);
|
| 3783 | ModuleFile &M = *PPInfo.first;
|
| 3784 | unsigned LocalIndex = PPInfo.second;
|
| 3785 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex];
|
| 3786 |
|
| 3787 | SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor);
|
| 3788 | M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset);
|
| 3789 |
|
| 3790 | unsigned Code = M.PreprocessorDetailCursor.ReadCode();
|
| 3791 | switch (Code) {
|
| 3792 | case llvm::bitc::END_BLOCK:
|
| 3793 | return 0;
|
| 3794 |
|
| 3795 | case llvm::bitc::ENTER_SUBBLOCK:
|
| 3796 | Error("unexpected subblock record in preprocessor detail block");
|
| 3797 | return 0;
|
| 3798 |
|
| 3799 | case llvm::bitc::DEFINE_ABBREV:
|
| 3800 | Error("unexpected abbrevation record in preprocessor detail block");
|
| 3801 | return 0;
|
| 3802 |
|
| 3803 | default:
|
| 3804 | break;
|
| 3805 | }
|
| 3806 |
|
| 3807 | if (!PP.getPreprocessingRecord()) {
|
| 3808 | Error("no preprocessing record");
|
| 3809 | return 0;
|
| 3810 | }
|
| 3811 |
|
| 3812 | // Read the record.
|
| 3813 | SourceRange Range(ReadSourceLocation(M, PPOffs.Begin),
|
| 3814 | ReadSourceLocation(M, PPOffs.End));
|
| 3815 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
|
| 3816 | const char *BlobStart = 0;
|
| 3817 | unsigned BlobLen = 0;
|
| 3818 | RecordData Record;
|
| 3819 | PreprocessorDetailRecordTypes RecType =
|
| 3820 | (PreprocessorDetailRecordTypes)M.PreprocessorDetailCursor.ReadRecord(
|
| 3821 | Code, Record, BlobStart, BlobLen);
|
| 3822 | switch (RecType) {
|
| 3823 | case PPD_MACRO_EXPANSION: {
|
| 3824 | bool isBuiltin = Record[0];
|
| 3825 | IdentifierInfo *Name = 0;
|
| 3826 | MacroDefinition *Def = 0;
|
| 3827 | if (isBuiltin)
|
| 3828 | Name = getLocalIdentifier(M, Record[1]);
|
| 3829 | else {
|
| 3830 | PreprocessedEntityID
|
| 3831 | GlobalID = getGlobalPreprocessedEntityID(M, Record[1]);
|
| 3832 | Def =cast<MacroDefinition>(PPRec.getLoadedPreprocessedEntity(GlobalID-1));
|
| 3833 | }
|
| 3834 |
|
| 3835 | MacroExpansion *ME;
|
| 3836 | if (isBuiltin)
|
| 3837 | ME = new (PPRec) MacroExpansion(Name, Range);
|
| 3838 | else
|
| 3839 | ME = new (PPRec) MacroExpansion(Def, Range);
|
| 3840 |
|
| 3841 | return ME;
|
| 3842 | }
|
| 3843 |
|
| 3844 | case PPD_MACRO_DEFINITION: {
|
| 3845 | // Decode the identifier info and then check again; if the macro is
|
| 3846 | // still defined and associated with the identifier,
|
| 3847 | IdentifierInfo *II = getLocalIdentifier(M, Record[0]);
|
| 3848 | MacroDefinition *MD
|
| 3849 | = new (PPRec) MacroDefinition(II, Range);
|
| 3850 |
|
| 3851 | if (DeserializationListener)
|
| 3852 | DeserializationListener->MacroDefinitionRead(PPID, MD);
|
| 3853 |
|
| 3854 | return MD;
|
| 3855 | }
|
| 3856 |
|
| 3857 | case PPD_INCLUSION_DIRECTIVE: {
|
| 3858 | const char *FullFileNameStart = BlobStart + Record[0];
|
| 3859 | StringRef FullFileName(FullFileNameStart, BlobLen - Record[0]);
|
| 3860 | const FileEntry *File = 0;
|
| 3861 | if (!FullFileName.empty())
|
| 3862 | File = PP.getFileManager().getFile(FullFileName);
|
| 3863 |
|
| 3864 | // FIXME: Stable encoding
|
| 3865 | InclusionDirective::InclusionKind Kind
|
| 3866 | = static_cast<InclusionDirective::InclusionKind>(Record[2]);
|
| 3867 | InclusionDirective *ID
|
| 3868 | = new (PPRec) InclusionDirective(PPRec, Kind,
|
| 3869 | StringRef(BlobStart, Record[0]),
|
| 3870 | Record[1], Record[3],
|
| 3871 | File,
|
| 3872 | Range);
|
| 3873 | return ID;
|
| 3874 | }
|
| 3875 | }
|
| 3876 |
|
| 3877 | llvm_unreachable("Invalid PreprocessorDetailRecordTypes");
|
| 3878 | }
|
| 3879 |
|
| 3880 | /// \brief \arg SLocMapI points at a chunk of a module that contains no
|
| 3881 | /// preprocessed entities or the entities it contains are not the ones we are
|
| 3882 | /// looking for. Find the next module that contains entities and return the ID
|
| 3883 | /// of the first entry.
|
| 3884 | PreprocessedEntityID ASTReader::findNextPreprocessedEntity(
|
| 3885 | GlobalSLocOffsetMapType::const_iterator SLocMapI) const {
|
| 3886 | ++SLocMapI;
|
| 3887 | for (GlobalSLocOffsetMapType::const_iterator
|
| 3888 | EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) {
|
| 3889 | ModuleFile &M = *SLocMapI->second;
|
| 3890 | if (M.NumPreprocessedEntities)
|
| 3891 | return M.BasePreprocessedEntityID;
|
| 3892 | }
|
| 3893 |
|
| 3894 | return getTotalNumPreprocessedEntities();
|
| 3895 | }
|
| 3896 |
|
| 3897 | namespace {
|
| 3898 |
|
| 3899 | template <unsigned PPEntityOffset::*PPLoc>
|
| 3900 | struct PPEntityComp {
|
| 3901 | const ASTReader &Reader;
|
| 3902 | ModuleFile &M;
|
| 3903 |
|
| 3904 | PPEntityComp(const ASTReader &Reader, ModuleFile &M) : Reader(Reader), M(M) { }
|
| 3905 |
|
| 3906 | bool operator()(const PPEntityOffset &L, const PPEntityOffset &R) const {
|
| 3907 | SourceLocation LHS = getLoc(L);
|
| 3908 | SourceLocation RHS = getLoc(R);
|
| 3909 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
|
| 3910 | }
|
| 3911 |
|
| 3912 | bool operator()(const PPEntityOffset &L, SourceLocation RHS) const {
|
| 3913 | SourceLocation LHS = getLoc(L);
|
| 3914 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
|
| 3915 | }
|
| 3916 |
|
| 3917 | bool operator()(SourceLocation LHS, const PPEntityOffset &R) const {
|
| 3918 | SourceLocation RHS = getLoc(R);
|
| 3919 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
|
| 3920 | }
|
| 3921 |
|
| 3922 | SourceLocation getLoc(const PPEntityOffset &PPE) const {
|
| 3923 | return Reader.ReadSourceLocation(M, PPE.*PPLoc);
|
| 3924 | }
|
| 3925 | };
|
| 3926 |
|
| 3927 | }
|
| 3928 |
|
| 3929 | /// \brief Returns the first preprocessed entity ID that ends after \arg BLoc.
|
| 3930 | PreprocessedEntityID
|
| 3931 | ASTReader::findBeginPreprocessedEntity(SourceLocation BLoc) const {
|
| 3932 | if (SourceMgr.isLocalSourceLocation(BLoc))
|
| 3933 | return getTotalNumPreprocessedEntities();
|
| 3934 |
|
| 3935 | GlobalSLocOffsetMapType::const_iterator
|
| 3936 | SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset -
|
| 3937 | BLoc.getOffset());
|
| 3938 | assert(SLocMapI != GlobalSLocOffsetMap.end() &&
|
| 3939 | "Corrupted global sloc offset map");
|
| 3940 |
|
| 3941 | if (SLocMapI->second->NumPreprocessedEntities == 0)
|
| 3942 | return findNextPreprocessedEntity(SLocMapI);
|
| 3943 |
|
| 3944 | ModuleFile &M = *SLocMapI->second;
|
| 3945 | typedef const PPEntityOffset *pp_iterator;
|
| 3946 | pp_iterator pp_begin = M.PreprocessedEntityOffsets;
|
| 3947 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities;
|
| 3948 |
|
| 3949 | size_t Count = M.NumPreprocessedEntities;
|
| 3950 | size_t Half;
|
| 3951 | pp_iterator First = pp_begin;
|
| 3952 | pp_iterator PPI;
|
| 3953 |
|
| 3954 | // Do a binary search manually instead of using std::lower_bound because
|
| 3955 | // The end locations of entities may be unordered (when a macro expansion
|
| 3956 | // is inside another macro argument), but for this case it is not important
|
| 3957 | // whether we get the first macro expansion or its containing macro.
|
| 3958 | while (Count > 0) {
|
| 3959 | Half = Count/2;
|
| 3960 | PPI = First;
|
| 3961 | std::advance(PPI, Half);
|
| 3962 | if (SourceMgr.isBeforeInTranslationUnit(ReadSourceLocation(M, PPI->End),
|
| 3963 | BLoc)){
|
| 3964 | First = PPI;
|
| 3965 | ++First;
|
| 3966 | Count = Count - Half - 1;
|
| 3967 | } else
|
| 3968 | Count = Half;
|
| 3969 | }
|
| 3970 |
|
| 3971 | if (PPI == pp_end)
|
| 3972 | return findNextPreprocessedEntity(SLocMapI);
|
| 3973 |
|
| 3974 | return M.BasePreprocessedEntityID + (PPI - pp_begin);
|
| 3975 | }
|
| 3976 |
|
| 3977 | /// \brief Returns the first preprocessed entity ID that begins after \arg ELoc.
|
| 3978 | PreprocessedEntityID
|
| 3979 | ASTReader::findEndPreprocessedEntity(SourceLocation ELoc) const {
|
| 3980 | if (SourceMgr.isLocalSourceLocation(ELoc))
|
| 3981 | return getTotalNumPreprocessedEntities();
|
| 3982 |
|
| 3983 | GlobalSLocOffsetMapType::const_iterator
|
| 3984 | SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset -
|
| 3985 | ELoc.getOffset());
|
| 3986 | assert(SLocMapI != GlobalSLocOffsetMap.end() &&
|
| 3987 | "Corrupted global sloc offset map");
|
| 3988 |
|
| 3989 | if (SLocMapI->second->NumPreprocessedEntities == 0)
|
| 3990 | return findNextPreprocessedEntity(SLocMapI);
|
| 3991 |
|
| 3992 | ModuleFile &M = *SLocMapI->second;
|
| 3993 | typedef const PPEntityOffset *pp_iterator;
|
| 3994 | pp_iterator pp_begin = M.PreprocessedEntityOffsets;
|
| 3995 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities;
|
| 3996 | pp_iterator PPI =
|
| 3997 | std::upper_bound(pp_begin, pp_end, ELoc,
|
| 3998 | PPEntityComp<&PPEntityOffset::Begin>(*this, M));
|
| 3999 |
|
| 4000 | if (PPI == pp_end)
|
| 4001 | return findNextPreprocessedEntity(SLocMapI);
|
| 4002 |
|
| 4003 | return M.BasePreprocessedEntityID + (PPI - pp_begin);
|
| 4004 | }
|
| 4005 |
|
| 4006 | /// \brief Returns a pair of [Begin, End) indices of preallocated
|
| 4007 | /// preprocessed entities that \arg Range encompasses.
|
| 4008 | std::pair<unsigned, unsigned>
|
| 4009 | ASTReader::findPreprocessedEntitiesInRange(SourceRange Range) {
|
| 4010 | if (Range.isInvalid())
|
| 4011 | return std::make_pair(0,0);
|
| 4012 | assert(!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin()));
|
| 4013 |
|
| 4014 | PreprocessedEntityID BeginID = findBeginPreprocessedEntity(Range.getBegin());
|
| 4015 | PreprocessedEntityID EndID = findEndPreprocessedEntity(Range.getEnd());
|
| 4016 | return std::make_pair(BeginID, EndID);
|
| 4017 | }
|
| 4018 |
|
| 4019 | /// \brief Optionally returns true or false if the preallocated preprocessed
|
| 4020 | /// entity with index \arg Index came from file \arg FID.
|
| 4021 | llvm::Optional<bool> ASTReader::isPreprocessedEntityInFileID(unsigned Index,
|
| 4022 | FileID FID) {
|
| 4023 | if (FID.isInvalid())
|
| 4024 | return false;
|
| 4025 |
|
| 4026 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);
|
| 4027 | ModuleFile &M = *PPInfo.first;
|
| 4028 | unsigned LocalIndex = PPInfo.second;
|
| 4029 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex];
|
| 4030 |
|
| 4031 | SourceLocation Loc = ReadSourceLocation(M, PPOffs.Begin);
|
| 4032 | if (Loc.isInvalid())
|
| 4033 | return false;
|
| 4034 |
|
| 4035 | if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID))
|
| 4036 | return true;
|
| 4037 | else
|
| 4038 | return false;
|
| 4039 | }
|
| 4040 |
|
| 4041 | namespace {
|
| 4042 | /// \brief Visitor used to search for information about a header file.
|
| 4043 | class HeaderFileInfoVisitor {
|
| 4044 | ASTReader &Reader;
|
| 4045 | const FileEntry *FE;
|
| 4046 |
|
| 4047 | llvm::Optional<HeaderFileInfo> HFI;
|
| 4048 |
|
| 4049 | public:
|
| 4050 | HeaderFileInfoVisitor(ASTReader &Reader, const FileEntry *FE)
|
| 4051 | : Reader(Reader), FE(FE) { }
|
| 4052 |
|
| 4053 | static bool visit(ModuleFile &M, void *UserData) {
|
| 4054 | HeaderFileInfoVisitor *This
|
| 4055 | = static_cast<HeaderFileInfoVisitor *>(UserData);
|
| 4056 |
|
| 4057 | HeaderFileInfoTrait Trait(This->Reader, M,
|
| 4058 | &This->Reader.getPreprocessor().getHeaderSearchInfo(),
|
| 4059 | M.HeaderFileFrameworkStrings,
|
| 4060 | This->FE->getName());
|
| 4061 |
|
| 4062 | HeaderFileInfoLookupTable *Table
|
| 4063 | = static_cast<HeaderFileInfoLookupTable *>(M.HeaderFileInfoTable);
|
| 4064 | if (!Table)
|
| 4065 | return false;
|
| 4066 |
|
| 4067 | // Look in the on-disk hash table for an entry for this file name.
|
| 4068 | HeaderFileInfoLookupTable::iterator Pos = Table->find(This->FE->getName(),
|
| 4069 | &Trait);
|
| 4070 | if (Pos == Table->end())
|
| 4071 | return false;
|
| 4072 |
|
| 4073 | This->HFI = *Pos;
|
| 4074 | return true;
|
| 4075 | }
|
| 4076 |
|
| 4077 | llvm::Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; }
|
| 4078 | };
|
| 4079 | }
|
| 4080 |
|
| 4081 | HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) {
|
| 4082 | HeaderFileInfoVisitor Visitor(*this, FE);
|
| 4083 | ModuleMgr.visit(&HeaderFileInfoVisitor::visit, &Visitor);
|
| 4084 | if (llvm::Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo()) {
|
| 4085 | if (Listener)
|
| 4086 | Listener->ReadHeaderFileInfo(*HFI, FE->getUID());
|
| 4087 | return *HFI;
|
| 4088 | }
|
| 4089 |
|
| 4090 | return HeaderFileInfo();
|
| 4091 | }
|
| 4092 |
|
| 4093 | void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) {
|
| 4094 | // FIXME: Make it work properly with modules.
|
| 4095 | llvm::SmallVector<DiagnosticsEngine::DiagState *, 32> DiagStates;
|
| 4096 | for (ModuleIterator I = ModuleMgr.begin(), E = ModuleMgr.end(); I != E; ++I) {
|
| 4097 | ModuleFile &F = *(*I);
|
| 4098 | unsigned Idx = 0;
|
| 4099 | DiagStates.clear();
|
| 4100 | assert(!Diag.DiagStates.empty());
|
| 4101 | DiagStates.push_back(&Diag.DiagStates.front()); // the command-line one.
|
| 4102 | while (Idx < F.PragmaDiagMappings.size()) {
|
| 4103 | SourceLocation Loc = ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]);
|
| 4104 | unsigned DiagStateID = F.PragmaDiagMappings[Idx++];
|
| 4105 | if (DiagStateID != 0) {
|
| 4106 | Diag.DiagStatePoints.push_back(
|
| 4107 | DiagnosticsEngine::DiagStatePoint(DiagStates[DiagStateID-1],
|
| 4108 | FullSourceLoc(Loc, SourceMgr)));
|
| 4109 | continue;
|
| 4110 | }
|
| 4111 |
|
| 4112 | assert(DiagStateID == 0);
|
| 4113 | // A new DiagState was created here.
|
| 4114 | Diag.DiagStates.push_back(*Diag.GetCurDiagState());
|
| 4115 | DiagnosticsEngine::DiagState *NewState = &Diag.DiagStates.back();
|
| 4116 | DiagStates.push_back(NewState);
|
| 4117 | Diag.DiagStatePoints.push_back(
|
| 4118 | DiagnosticsEngine::DiagStatePoint(NewState,
|
| 4119 | FullSourceLoc(Loc, SourceMgr)));
|
| 4120 | while (1) {
|
| 4121 | assert(Idx < F.PragmaDiagMappings.size() &&
|
| 4122 | "Invalid data, didn't find '-1' marking end of diag/map pairs");
|
| 4123 | if (Idx >= F.PragmaDiagMappings.size()) {
|
| 4124 | break; // Something is messed up but at least avoid infinite loop in
|
| 4125 | // release build.
|
| 4126 | }
|
| 4127 | unsigned DiagID = F.PragmaDiagMappings[Idx++];
|
| 4128 | if (DiagID == (unsigned)-1) {
|
| 4129 | break; // no more diag/map pairs for this location.
|
| 4130 | }
|
| 4131 | diag::Mapping Map = (diag::Mapping)F.PragmaDiagMappings[Idx++];
|
| 4132 | DiagnosticMappingInfo MappingInfo = Diag.makeMappingInfo(Map, Loc);
|
| 4133 | Diag.GetCurDiagState()->setMappingInfo(DiagID, MappingInfo);
|
| 4134 | }
|
| 4135 | }
|
| 4136 | }
|
| 4137 | }
|
| 4138 |
|
| 4139 | /// \brief Get the correct cursor and offset for loading a type.
|
| 4140 | ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) {
|
| 4141 | GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index);
|
| 4142 | assert(I != GlobalTypeMap.end() && "Corrupted global type map");
|
| 4143 | ModuleFile *M = I->second;
|
| 4144 | return RecordLocation(M, M->TypeOffsets[Index - M->BaseTypeIndex]);
|
| 4145 | }
|
| 4146 |
|
| 4147 | /// \brief Read and return the type with the given index..
|
| 4148 | ///
|
| 4149 | /// The index is the type ID, shifted and minus the number of predefs. This
|
| 4150 | /// routine actually reads the record corresponding to the type at the given
|
| 4151 | /// location. It is a helper routine for GetType, which deals with reading type
|
| 4152 | /// IDs.
|
| 4153 | QualType ASTReader::readTypeRecord(unsigned Index) {
|
| 4154 | RecordLocation Loc = TypeCursorForIndex(Index);
|
| 4155 | llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor;
|
| 4156 |
|
| 4157 | // Keep track of where we are in the stream, then jump back there
|
| 4158 | // after reading this type.
|
| 4159 | SavedStreamPosition SavedPosition(DeclsCursor);
|
| 4160 |
|
| 4161 | ReadingKindTracker ReadingKind(Read_Type, *this);
|
| 4162 |
|
| 4163 | // Note that we are loading a type record.
|
| 4164 | Deserializing AType(this);
|
| 4165 |
|
| 4166 | unsigned Idx = 0;
|
| 4167 | DeclsCursor.JumpToBit(Loc.Offset);
|
| 4168 | RecordData Record;
|
| 4169 | unsigned Code = DeclsCursor.ReadCode();
|
| 4170 | switch ((TypeCode)DeclsCursor.ReadRecord(Code, Record)) {
|
| 4171 | case TYPE_EXT_QUAL: {
|
| 4172 | if (Record.size() != 2) {
|
| 4173 | Error("Incorrect encoding of extended qualifier type");
|
| 4174 | return QualType();
|
| 4175 | }
|
| 4176 | QualType Base = readType(*Loc.F, Record, Idx);
|
| 4177 | Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[Idx++]);
|
| 4178 | return Context.getQualifiedType(Base, Quals);
|
| 4179 | }
|
| 4180 |
|
| 4181 | case TYPE_COMPLEX: {
|
| 4182 | if (Record.size() != 1) {
|
| 4183 | Error("Incorrect encoding of complex type");
|
| 4184 | return QualType();
|
| 4185 | }
|
| 4186 | QualType ElemType = readType(*Loc.F, Record, Idx);
|
| 4187 | return Context.getComplexType(ElemType);
|
| 4188 | }
|
| 4189 |
|
| 4190 | case TYPE_POINTER: {
|
| 4191 | if (Record.size() != 1) {
|
| 4192 | Error("Incorrect encoding of pointer type");
|
| 4193 | return QualType();
|
| 4194 | }
|
| 4195 | QualType PointeeType = readType(*Loc.F, Record, Idx);
|
| 4196 | return Context.getPointerType(PointeeType);
|
| 4197 | }
|
| 4198 |
|
| 4199 | case TYPE_BLOCK_POINTER: {
|
| 4200 | if (Record.size() != 1) {
|
| 4201 | Error("Incorrect encoding of block pointer type");
|
| 4202 | return QualType();
|
| 4203 | }
|
| 4204 | QualType PointeeType = readType(*Loc.F, Record, Idx);
|
| 4205 | return Context.getBlockPointerType(PointeeType);
|
| 4206 | }
|
| 4207 |
|
| 4208 | case TYPE_LVALUE_REFERENCE: {
|
| 4209 | if (Record.size() != 2) {
|
| 4210 | Error("Incorrect encoding of lvalue reference type");
|
| 4211 | return QualType();
|
| 4212 | }
|
| 4213 | QualType PointeeType = readType(*Loc.F, Record, Idx);
|
| 4214 | return Context.getLValueReferenceType(PointeeType, Record[1]);
|
| 4215 | }
|
| 4216 |
|
| 4217 | case TYPE_RVALUE_REFERENCE: {
|
| 4218 | if (Record.size() != 1) {
|
| 4219 | Error("Incorrect encoding of rvalue reference type");
|
| 4220 | return QualType();
|
| 4221 | }
|
| 4222 | QualType PointeeType = readType(*Loc.F, Record, Idx);
|
| 4223 | return Context.getRValueReferenceType(PointeeType);
|
| 4224 | }
|
| 4225 |
|
| 4226 | case TYPE_MEMBER_POINTER: {
|
| 4227 | if (Record.size() != 2) {
|
| 4228 | Error("Incorrect encoding of member pointer type");
|
| 4229 | return QualType();
|
| 4230 | }
|
| 4231 | QualType PointeeType = readType(*Loc.F, Record, Idx);
|
| 4232 | QualType ClassType = readType(*Loc.F, Record, Idx);
|
| 4233 | if (PointeeType.isNull() || ClassType.isNull())
|
| 4234 | return QualType();
|
| 4235 |
|
| 4236 | return Context.getMemberPointerType(PointeeType, ClassType.getTypePtr());
|
| 4237 | }
|
| 4238 |
|
| 4239 | case TYPE_CONSTANT_ARRAY: {
|
| 4240 | QualType ElementType = readType(*Loc.F, Record, Idx);
|
| 4241 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
|
| 4242 | unsigned IndexTypeQuals = Record[2];
|
| 4243 | unsigned Idx = 3;
|
| 4244 | llvm::APInt Size = ReadAPInt(Record, Idx);
|
| 4245 | return Context.getConstantArrayType(ElementType, Size,
|
| 4246 | ASM, IndexTypeQuals);
|
| 4247 | }
|
| 4248 |
|
| 4249 | case TYPE_INCOMPLETE_ARRAY: {
|
| 4250 | QualType ElementType = readType(*Loc.F, Record, Idx);
|
| 4251 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
|
| 4252 | unsigned IndexTypeQuals = Record[2];
|
| 4253 | return Context.getIncompleteArrayType(ElementType, ASM, IndexTypeQuals);
|
| 4254 | }
|
| 4255 |
|
| 4256 | case TYPE_VARIABLE_ARRAY: {
|
| 4257 | QualType ElementType = readType(*Loc.F, Record, Idx);
|
| 4258 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
|
| 4259 | unsigned IndexTypeQuals = Record[2];
|
| 4260 | SourceLocation LBLoc = ReadSourceLocation(*Loc.F, Record[3]);
|
| 4261 | SourceLocation RBLoc = ReadSourceLocation(*Loc.F, Record[4]);
|
| 4262 | return Context.getVariableArrayType(ElementType, ReadExpr(*Loc.F),
|
| 4263 | ASM, IndexTypeQuals,
|
| 4264 | SourceRange(LBLoc, RBLoc));
|
| 4265 | }
|
| 4266 |
|
| 4267 | case TYPE_VECTOR: {
|
| 4268 | if (Record.size() != 3) {
|
| 4269 | Error("incorrect encoding of vector type in AST file");
|
| 4270 | return QualType();
|
| 4271 | }
|
| 4272 |
|
| 4273 | QualType ElementType = readType(*Loc.F, Record, Idx);
|
| 4274 | unsigned NumElements = Record[1];
|
| 4275 | unsigned VecKind = Record[2];
|
| 4276 | return Context.getVectorType(ElementType, NumElements,
|
| 4277 | (VectorType::VectorKind)VecKind);
|
| 4278 | }
|
| 4279 |
|
| 4280 | case TYPE_EXT_VECTOR: {
|
| 4281 | if (Record.size() != 3) {
|
| 4282 | Error("incorrect encoding of extended vector type in AST file");
|
| 4283 | return QualType();
|
| 4284 | }
|
| 4285 |
|
| 4286 | QualType ElementType = readType(*Loc.F, Record, Idx);
|
| 4287 | unsigned NumElements = Record[1];
|
| 4288 | return Context.getExtVectorType(ElementType, NumElements);
|
| 4289 | }
|
| 4290 |
|
| 4291 | case TYPE_FUNCTION_NO_PROTO: {
|
| 4292 | if (Record.size() != 6) {
|
| 4293 | Error("incorrect encoding of no-proto function type");
|
| 4294 | return QualType();
|
| 4295 | }
|
| 4296 | QualType ResultType = readType(*Loc.F, Record, Idx);
|
| 4297 | FunctionType::ExtInfo Info(Record[1], Record[2], Record[3],
|
| 4298 | (CallingConv)Record[4], Record[5]);
|
| 4299 | return Context.getFunctionNoProtoType(ResultType, Info);
|
| 4300 | }
|
| 4301 |
|
| 4302 | case TYPE_FUNCTION_PROTO: {
|
| 4303 | QualType ResultType = readType(*Loc.F, Record, Idx);
|
| 4304 |
|
| 4305 | FunctionProtoType::ExtProtoInfo EPI;
|
| 4306 | EPI.ExtInfo = FunctionType::ExtInfo(/*noreturn*/ Record[1],
|
| 4307 | /*hasregparm*/ Record[2],
|
| 4308 | /*regparm*/ Record[3],
|
| 4309 | static_cast<CallingConv>(Record[4]),
|
| 4310 | /*produces*/ Record[5]);
|
| 4311 |
|
| 4312 | unsigned Idx = 6;
|
| 4313 | unsigned NumParams = Record[Idx++];
|
| 4314 | SmallVector<QualType, 16> ParamTypes;
|
| 4315 | for (unsigned I = 0; I != NumParams; ++I)
|
| 4316 | ParamTypes.push_back(readType(*Loc.F, Record, Idx));
|
| 4317 |
|
| 4318 | EPI.Variadic = Record[Idx++];
|
| 4319 | EPI.HasTrailingReturn = Record[Idx++];
|
| 4320 | EPI.TypeQuals = Record[Idx++];
|
| 4321 | EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]);
|
| 4322 | ExceptionSpecificationType EST =
|
| 4323 | static_cast<ExceptionSpecificationType>(Record[Idx++]);
|
| 4324 | EPI.ExceptionSpecType = EST;
|
| 4325 | SmallVector<QualType, 2> Exceptions;
|
| 4326 | if (EST == EST_Dynamic) {
|
| 4327 | EPI.NumExceptions = Record[Idx++];
|
| 4328 | for (unsigned I = 0; I != EPI.NumExceptions; ++I)
|
| 4329 | Exceptions.push_back(readType(*Loc.F, Record, Idx));
|
| 4330 | EPI.Exceptions = Exceptions.data();
|
| 4331 | } else if (EST == EST_ComputedNoexcept) {
|
| 4332 | EPI.NoexceptExpr = ReadExpr(*Loc.F);
|
| 4333 | } else if (EST == EST_Uninstantiated) {
|
| 4334 | EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
|
| 4335 | EPI.ExceptionSpecTemplate = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
|
| 4336 | } else if (EST == EST_Unevaluated) {
|
| 4337 | EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
|
| 4338 | }
|
| 4339 | return Context.getFunctionType(ResultType, ParamTypes.data(), NumParams,
|
| 4340 | EPI);
|
| 4341 | }
|
| 4342 |
|
| 4343 | case TYPE_UNRESOLVED_USING: {
|
| 4344 | unsigned Idx = 0;
|
| 4345 | return Context.getTypeDeclType(
|
| 4346 | ReadDeclAs<UnresolvedUsingTypenameDecl>(*Loc.F, Record, Idx));
|
| 4347 | }
|
| 4348 |
|
| 4349 | case TYPE_TYPEDEF: {
|
| 4350 | if (Record.size() != 2) {
|
| 4351 | Error("incorrect encoding of typedef type");
|
| 4352 | return QualType();
|
| 4353 | }
|
| 4354 | unsigned Idx = 0;
|
| 4355 | TypedefNameDecl *Decl = ReadDeclAs<TypedefNameDecl>(*Loc.F, Record, Idx);
|
| 4356 | QualType Canonical = readType(*Loc.F, Record, Idx);
|
| 4357 | if (!Canonical.isNull())
|
| 4358 | Canonical = Context.getCanonicalType(Canonical);
|
| 4359 | return Context.getTypedefType(Decl, Canonical);
|
| 4360 | }
|
| 4361 |
|
| 4362 | case TYPE_TYPEOF_EXPR:
|
| 4363 | return Context.getTypeOfExprType(ReadExpr(*Loc.F));
|
| 4364 |
|
| 4365 | case TYPE_TYPEOF: {
|
| 4366 | if (Record.size() != 1) {
|
| 4367 | Error("incorrect encoding of typeof(type) in AST file");
|
| 4368 | return QualType();
|
| 4369 | }
|
| 4370 | QualType UnderlyingType = readType(*Loc.F, Record, Idx);
|
| 4371 | return Context.getTypeOfType(UnderlyingType);
|
| 4372 | }
|
| 4373 |
|
| 4374 | case TYPE_DECLTYPE: {
|
| 4375 | QualType UnderlyingType = readType(*Loc.F, Record, Idx);
|
| 4376 | return Context.getDecltypeType(ReadExpr(*Loc.F), UnderlyingType);
|
| 4377 | }
|
| 4378 |
|
| 4379 | case TYPE_UNARY_TRANSFORM: {
|
| 4380 | QualType BaseType = readType(*Loc.F, Record, Idx);
|
| 4381 | QualType UnderlyingType = readType(*Loc.F, Record, Idx);
|
| 4382 | UnaryTransformType::UTTKind UKind = (UnaryTransformType::UTTKind)Record[2];
|
| 4383 | return Context.getUnaryTransformType(BaseType, UnderlyingType, UKind);
|
| 4384 | }
|
| 4385 |
|
| 4386 | case TYPE_AUTO:
|
| 4387 | return Context.getAutoType(readType(*Loc.F, Record, Idx));
|
| 4388 |
|
| 4389 | case TYPE_RECORD: {
|
| 4390 | if (Record.size() != 2) {
|
| 4391 | Error("incorrect encoding of record type");
|
| 4392 | return QualType();
|
| 4393 | }
|
| 4394 | unsigned Idx = 0;
|
| 4395 | bool IsDependent = Record[Idx++];
|
| 4396 | RecordDecl *RD = ReadDeclAs<RecordDecl>(*Loc.F, Record, Idx);
|
| 4397 | RD = cast_or_null<RecordDecl>(RD->getCanonicalDecl());
|
| 4398 | QualType T = Context.getRecordType(RD);
|
| 4399 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
|
| 4400 | return T;
|
| 4401 | }
|
| 4402 |
|
| 4403 | case TYPE_ENUM: {
|
| 4404 | if (Record.size() != 2) {
|
| 4405 | Error("incorrect encoding of enum type");
|
| 4406 | return QualType();
|
| 4407 | }
|
| 4408 | unsigned Idx = 0;
|
| 4409 | bool IsDependent = Record[Idx++];
|
| 4410 | QualType T
|
| 4411 | = Context.getEnumType(ReadDeclAs<EnumDecl>(*Loc.F, Record, Idx));
|
| 4412 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
|
| 4413 | return T;
|
| 4414 | }
|
| 4415 |
|
| 4416 | case TYPE_ATTRIBUTED: {
|
| 4417 | if (Record.size() != 3) {
|
| 4418 | Error("incorrect encoding of attributed type");
|
| 4419 | return QualType();
|
| 4420 | }
|
| 4421 | QualType modifiedType = readType(*Loc.F, Record, Idx);
|
| 4422 | QualType equivalentType = readType(*Loc.F, Record, Idx);
|
| 4423 | AttributedType::Kind kind = static_cast<AttributedType::Kind>(Record[2]);
|
| 4424 | return Context.getAttributedType(kind, modifiedType, equivalentType);
|
| 4425 | }
|
| 4426 |
|
| 4427 | case TYPE_PAREN: {
|
| 4428 | if (Record.size() != 1) {
|
| 4429 | Error("incorrect encoding of paren type");
|
| 4430 | return QualType();
|
| 4431 | }
|
| 4432 | QualType InnerType = readType(*Loc.F, Record, Idx);
|
| 4433 | return Context.getParenType(InnerType);
|
| 4434 | }
|
| 4435 |
|
| 4436 | case TYPE_PACK_EXPANSION: {
|
| 4437 | if (Record.size() != 2) {
|
| 4438 | Error("incorrect encoding of pack expansion type");
|
| 4439 | return QualType();
|
| 4440 | }
|
| 4441 | QualType Pattern = readType(*Loc.F, Record, Idx);
|
| 4442 | if (Pattern.isNull())
|
| 4443 | return QualType();
|
| 4444 | llvm::Optional<unsigned> NumExpansions;
|
| 4445 | if (Record[1])
|
| 4446 | NumExpansions = Record[1] - 1;
|
| 4447 | return Context.getPackExpansionType(Pattern, NumExpansions);
|
| 4448 | }
|
| 4449 |
|
| 4450 | case TYPE_ELABORATED: {
|
| 4451 | unsigned Idx = 0;
|
| 4452 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
|
| 4453 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
|
| 4454 | QualType NamedType = readType(*Loc.F, Record, Idx);
|
| 4455 | return Context.getElaboratedType(Keyword, NNS, NamedType);
|
| 4456 | }
|
| 4457 |
|
| 4458 | case TYPE_OBJC_INTERFACE: {
|
| 4459 | unsigned Idx = 0;
|
| 4460 | ObjCInterfaceDecl *ItfD
|
| 4461 | = ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx);
|
| 4462 | return Context.getObjCInterfaceType(ItfD->getCanonicalDecl());
|
| 4463 | }
|
| 4464 |
|
| 4465 | case TYPE_OBJC_OBJECT: {
|
| 4466 | unsigned Idx = 0;
|
| 4467 | QualType Base = readType(*Loc.F, Record, Idx);
|
| 4468 | unsigned NumProtos = Record[Idx++];
|
| 4469 | SmallVector<ObjCProtocolDecl*, 4> Protos;
|
| 4470 | for (unsigned I = 0; I != NumProtos; ++I)
|
| 4471 | Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx));
|
| 4472 | return Context.getObjCObjectType(Base, Protos.data(), NumProtos);
|
| 4473 | }
|
| 4474 |
|
| 4475 | case TYPE_OBJC_OBJECT_POINTER: {
|
| 4476 | unsigned Idx = 0;
|
| 4477 | QualType Pointee = readType(*Loc.F, Record, Idx);
|
| 4478 | return Context.getObjCObjectPointerType(Pointee);
|
| 4479 | }
|
| 4480 |
|
| 4481 | case TYPE_SUBST_TEMPLATE_TYPE_PARM: {
|
| 4482 | unsigned Idx = 0;
|
| 4483 | QualType Parm = readType(*Loc.F, Record, Idx);
|
| 4484 | QualType Replacement = readType(*Loc.F, Record, Idx);
|
| 4485 | return
|
| 4486 | Context.getSubstTemplateTypeParmType(cast<TemplateTypeParmType>(Parm),
|
| 4487 | Replacement);
|
| 4488 | }
|
| 4489 |
|
| 4490 | case TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK: {
|
| 4491 | unsigned Idx = 0;
|
| 4492 | QualType Parm = readType(*Loc.F, Record, Idx);
|
| 4493 | TemplateArgument ArgPack = ReadTemplateArgument(*Loc.F, Record, Idx);
|
| 4494 | return Context.getSubstTemplateTypeParmPackType(
|
| 4495 | cast<TemplateTypeParmType>(Parm),
|
| 4496 | ArgPack);
|
| 4497 | }
|
| 4498 |
|
| 4499 | case TYPE_INJECTED_CLASS_NAME: {
|
| 4500 | CXXRecordDecl *D = ReadDeclAs<CXXRecordDecl>(*Loc.F, Record, Idx);
|
| 4501 | QualType TST = readType(*Loc.F, Record, Idx); // probably derivable
|
| 4502 | // FIXME: ASTContext::getInjectedClassNameType is not currently suitable
|
| 4503 | // for AST reading, too much interdependencies.
|
| 4504 | return
|
| 4505 | QualType(new (Context, TypeAlignment) InjectedClassNameType(D, TST), 0);
|
| 4506 | }
|
| 4507 |
|
| 4508 | case TYPE_TEMPLATE_TYPE_PARM: {
|
| 4509 | unsigned Idx = 0;
|
| 4510 | unsigned Depth = Record[Idx++];
|
| 4511 | unsigned Index = Record[Idx++];
|
| 4512 | bool Pack = Record[Idx++];
|
| 4513 | TemplateTypeParmDecl *D
|
| 4514 | = ReadDeclAs<TemplateTypeParmDecl>(*Loc.F, Record, Idx);
|
| 4515 | return Context.getTemplateTypeParmType(Depth, Index, Pack, D);
|
| 4516 | }
|
| 4517 |
|
| 4518 | case TYPE_DEPENDENT_NAME: {
|
| 4519 | unsigned Idx = 0;
|
| 4520 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
|
| 4521 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
|
| 4522 | const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx);
|
| 4523 | QualType Canon = readType(*Loc.F, Record, Idx);
|
| 4524 | if (!Canon.isNull())
|
| 4525 | Canon = Context.getCanonicalType(Canon);
|
| 4526 | return Context.getDependentNameType(Keyword, NNS, Name, Canon);
|
| 4527 | }
|
| 4528 |
|
| 4529 | case TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: {
|
| 4530 | unsigned Idx = 0;
|
| 4531 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
|
| 4532 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
|
| 4533 | const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx);
|
| 4534 | unsigned NumArgs = Record[Idx++];
|
| 4535 | SmallVector<TemplateArgument, 8> Args;
|
| 4536 | Args.reserve(NumArgs);
|
| 4537 | while (NumArgs--)
|
| 4538 | Args.push_back(ReadTemplateArgument(*Loc.F, Record, Idx));
|
| 4539 | return Context.getDependentTemplateSpecializationType(Keyword, NNS, Name,
|
| 4540 | Args.size(), Args.data());
|
| 4541 | }
|
| 4542 |
|
| 4543 | case TYPE_DEPENDENT_SIZED_ARRAY: {
|
| 4544 | unsigned Idx = 0;
|
| 4545 |
|
| 4546 | // ArrayType
|
| 4547 | QualType ElementType = readType(*Loc.F, Record, Idx);
|
| 4548 | ArrayType::ArraySizeModifier ASM
|
| 4549 | = (ArrayType::ArraySizeModifier)Record[Idx++];
|
| 4550 | unsigned IndexTypeQuals = Record[Idx++];
|
| 4551 |
|
| 4552 | // DependentSizedArrayType
|
| 4553 | Expr *NumElts = ReadExpr(*Loc.F);
|
| 4554 | SourceRange Brackets = ReadSourceRange(*Loc.F, Record, Idx);
|
| 4555 |
|
| 4556 | return Context.getDependentSizedArrayType(ElementType, NumElts, ASM,
|
| 4557 | IndexTypeQuals, Brackets);
|
| 4558 | }
|
| 4559 |
|
| 4560 | case TYPE_TEMPLATE_SPECIALIZATION: {
|
| 4561 | unsigned Idx = 0;
|
| 4562 | bool IsDependent = Record[Idx++];
|
| 4563 | TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx);
|
| 4564 | SmallVector<TemplateArgument, 8> Args;
|
| 4565 | ReadTemplateArgumentList(Args, *Loc.F, Record, Idx);
|
| 4566 | QualType Underlying = readType(*Loc.F, Record, Idx);
|
| 4567 | QualType T;
|
| 4568 | if (Underlying.isNull())
|
| 4569 | T = Context.getCanonicalTemplateSpecializationType(Name, Args.data(),
|
| 4570 | Args.size());
|
| 4571 | else
|
| 4572 | T = Context.getTemplateSpecializationType(Name, Args.data(),
|
| 4573 | Args.size(), Underlying);
|
| 4574 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
|
| 4575 | return T;
|
| 4576 | }
|
| 4577 |
|
| 4578 | case TYPE_ATOMIC: {
|
| 4579 | if (Record.size() != 1) {
|
| 4580 | Error("Incorrect encoding of atomic type");
|
| 4581 | return QualType();
|
| 4582 | }
|
| 4583 | QualType ValueType = readType(*Loc.F, Record, Idx);
|
| 4584 | return Context.getAtomicType(ValueType);
|
| 4585 | }
|
| 4586 | }
|
| 4587 | llvm_unreachable("Invalid TypeCode!");
|
| 4588 | }
|
| 4589 |
|
| 4590 | class clang::TypeLocReader : public TypeLocVisitor<TypeLocReader> {
|
| 4591 | ASTReader &Reader;
|
| 4592 | ModuleFile &F;
|
| 4593 | const ASTReader::RecordData &Record;
|
| 4594 | unsigned &Idx;
|
| 4595 |
|
| 4596 | SourceLocation ReadSourceLocation(const ASTReader::RecordData &R,
|
| 4597 | unsigned &I) {
|
| 4598 | return Reader.ReadSourceLocation(F, R, I);
|
| 4599 | }
|
| 4600 |
|
| 4601 | template<typename T>
|
| 4602 | T *ReadDeclAs(const ASTReader::RecordData &Record, unsigned &Idx) {
|
| 4603 | return Reader.ReadDeclAs<T>(F, Record, Idx);
|
| 4604 | }
|
| 4605 |
|
| 4606 | public:
|
| 4607 | TypeLocReader(ASTReader &Reader, ModuleFile &F,
|
| 4608 | const ASTReader::RecordData &Record, unsigned &Idx)
|
| 4609 | : Reader(Reader), F(F), Record(Record), Idx(Idx)
|
| 4610 | { }
|
| 4611 |
|
| 4612 | // We want compile-time assurance that we've enumerated all of
|
| 4613 | // these, so unfortunately we have to declare them first, then
|
| 4614 | // define them out-of-line.
|
| 4615 | #define ABSTRACT_TYPELOC(CLASS, PARENT)
|
| 4616 | #define TYPELOC(CLASS, PARENT) \
|
| 4617 | void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
|
| 4618 | #include "clang/AST/TypeLocNodes.def"
|
| 4619 |
|
| 4620 | void VisitFunctionTypeLoc(FunctionTypeLoc);
|
| 4621 | void VisitArrayTypeLoc(ArrayTypeLoc);
|
| 4622 | };
|
| 4623 |
|
| 4624 | void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
|
| 4625 | // nothing to do
|
| 4626 | }
|
| 4627 | void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
|
| 4628 | TL.setBuiltinLoc(ReadSourceLocation(Record, Idx));
|
| 4629 | if (TL.needsExtraLocalData()) {
|
| 4630 | TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++]));
|
| 4631 | TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++]));
|
| 4632 | TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++]));
|
| 4633 | TL.setModeAttr(Record[Idx++]);
|
| 4634 | }
|
| 4635 | }
|
| 4636 | void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) {
|
| 4637 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4638 | }
|
| 4639 | void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) {
|
| 4640 | TL.setStarLoc(ReadSourceLocation(Record, Idx));
|
| 4641 | }
|
| 4642 | void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
|
| 4643 | TL.setCaretLoc(ReadSourceLocation(Record, Idx));
|
| 4644 | }
|
| 4645 | void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
|
| 4646 | TL.setAmpLoc(ReadSourceLocation(Record, Idx));
|
| 4647 | }
|
| 4648 | void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
|
| 4649 | TL.setAmpAmpLoc(ReadSourceLocation(Record, Idx));
|
| 4650 | }
|
| 4651 | void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
|
| 4652 | TL.setStarLoc(ReadSourceLocation(Record, Idx));
|
| 4653 | TL.setClassTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
|
| 4654 | }
|
| 4655 | void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) {
|
| 4656 | TL.setLBracketLoc(ReadSourceLocation(Record, Idx));
|
| 4657 | TL.setRBracketLoc(ReadSourceLocation(Record, Idx));
|
| 4658 | if (Record[Idx++])
|
| 4659 | TL.setSizeExpr(Reader.ReadExpr(F));
|
| 4660 | else
|
| 4661 | TL.setSizeExpr(0);
|
| 4662 | }
|
| 4663 | void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
|
| 4664 | VisitArrayTypeLoc(TL);
|
| 4665 | }
|
| 4666 | void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
|
| 4667 | VisitArrayTypeLoc(TL);
|
| 4668 | }
|
| 4669 | void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
|
| 4670 | VisitArrayTypeLoc(TL);
|
| 4671 | }
|
| 4672 | void TypeLocReader::VisitDependentSizedArrayTypeLoc(
|
| 4673 | DependentSizedArrayTypeLoc TL) {
|
| 4674 | VisitArrayTypeLoc(TL);
|
| 4675 | }
|
| 4676 | void TypeLocReader::VisitDependentSizedExtVectorTypeLoc(
|
| 4677 | DependentSizedExtVectorTypeLoc TL) {
|
| 4678 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4679 | }
|
| 4680 | void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) {
|
| 4681 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4682 | }
|
| 4683 | void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
|
| 4684 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4685 | }
|
| 4686 | void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
|
| 4687 | TL.setLocalRangeBegin(ReadSourceLocation(Record, Idx));
|
| 4688 | TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
| 4689 | TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
| 4690 | TL.setLocalRangeEnd(ReadSourceLocation(Record, Idx));
|
| 4691 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) {
|
| 4692 | TL.setArg(i, ReadDeclAs<ParmVarDecl>(Record, Idx));
|
| 4693 | }
|
| 4694 | }
|
| 4695 | void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
|
| 4696 | VisitFunctionTypeLoc(TL);
|
| 4697 | }
|
| 4698 | void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
|
| 4699 | VisitFunctionTypeLoc(TL);
|
| 4700 | }
|
| 4701 | void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
|
| 4702 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4703 | }
|
| 4704 | void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
|
| 4705 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4706 | }
|
| 4707 | void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
|
| 4708 | TL.setTypeofLoc(ReadSourceLocation(Record, Idx));
|
| 4709 | TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
| 4710 | TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
| 4711 | }
|
| 4712 | void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
|
| 4713 | TL.setTypeofLoc(ReadSourceLocation(Record, Idx));
|
| 4714 | TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
| 4715 | TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
| 4716 | TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
|
| 4717 | }
|
| 4718 | void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
|
| 4719 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4720 | }
|
| 4721 | void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) {
|
| 4722 | TL.setKWLoc(ReadSourceLocation(Record, Idx));
|
| 4723 | TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
| 4724 | TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
| 4725 | TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
|
| 4726 | }
|
| 4727 | void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) {
|
| 4728 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4729 | }
|
| 4730 | void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) {
|
| 4731 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4732 | }
|
| 4733 | void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) {
|
| 4734 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4735 | }
|
| 4736 | void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
|
| 4737 | TL.setAttrNameLoc(ReadSourceLocation(Record, Idx));
|
| 4738 | if (TL.hasAttrOperand()) {
|
| 4739 | SourceRange range;
|
| 4740 | range.setBegin(ReadSourceLocation(Record, Idx));
|
| 4741 | range.setEnd(ReadSourceLocation(Record, Idx));
|
| 4742 | TL.setAttrOperandParensRange(range);
|
| 4743 | }
|
| 4744 | if (TL.hasAttrExprOperand()) {
|
| 4745 | if (Record[Idx++])
|
| 4746 | TL.setAttrExprOperand(Reader.ReadExpr(F));
|
| 4747 | else
|
| 4748 | TL.setAttrExprOperand(0);
|
| 4749 | } else if (TL.hasAttrEnumOperand())
|
| 4750 | TL.setAttrEnumOperandLoc(ReadSourceLocation(Record, Idx));
|
| 4751 | }
|
| 4752 | void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
|
| 4753 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4754 | }
|
| 4755 | void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc(
|
| 4756 | SubstTemplateTypeParmTypeLoc TL) {
|
| 4757 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4758 | }
|
| 4759 | void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc(
|
| 4760 | SubstTemplateTypeParmPackTypeLoc TL) {
|
| 4761 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4762 | }
|
| 4763 | void TypeLocReader::VisitTemplateSpecializationTypeLoc(
|
| 4764 | TemplateSpecializationTypeLoc TL) {
|
| 4765 | TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx));
|
| 4766 | TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx));
|
| 4767 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
|
| 4768 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
|
| 4769 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
|
| 4770 | TL.setArgLocInfo(i,
|
| 4771 | Reader.GetTemplateArgumentLocInfo(F,
|
| 4772 | TL.getTypePtr()->getArg(i).getKind(),
|
| 4773 | Record, Idx));
|
| 4774 | }
|
| 4775 | void TypeLocReader::VisitParenTypeLoc(ParenTypeLoc TL) {
|
| 4776 | TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
| 4777 | TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
| 4778 | }
|
| 4779 | void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
|
| 4780 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
|
| 4781 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
|
| 4782 | }
|
| 4783 | void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
|
| 4784 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4785 | }
|
| 4786 | void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
|
| 4787 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
|
| 4788 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
|
| 4789 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4790 | }
|
| 4791 | void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc(
|
| 4792 | DependentTemplateSpecializationTypeLoc TL) {
|
| 4793 | TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
|
| 4794 | TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
|
| 4795 | TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx));
|
| 4796 | TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx));
|
| 4797 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
|
| 4798 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
|
| 4799 | for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
|
| 4800 | TL.setArgLocInfo(I,
|
| 4801 | Reader.GetTemplateArgumentLocInfo(F,
|
| 4802 | TL.getTypePtr()->getArg(I).getKind(),
|
| 4803 | Record, Idx));
|
| 4804 | }
|
| 4805 | void TypeLocReader::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) {
|
| 4806 | TL.setEllipsisLoc(ReadSourceLocation(Record, Idx));
|
| 4807 | }
|
| 4808 | void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
|
| 4809 | TL.setNameLoc(ReadSourceLocation(Record, Idx));
|
| 4810 | }
|
| 4811 | void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
|
| 4812 | TL.setHasBaseTypeAsWritten(Record[Idx++]);
|
| 4813 | TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
|
| 4814 | TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
|
| 4815 | for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
|
| 4816 | TL.setProtocolLoc(i, ReadSourceLocation(Record, Idx));
|
| 4817 | }
|
| 4818 | void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
|
| 4819 | TL.setStarLoc(ReadSourceLocation(Record, Idx));
|
| 4820 | }
|
| 4821 | void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
|
| 4822 | TL.setKWLoc(ReadSourceLocation(Record, Idx));
|
| 4823 | TL.setLParenLoc(ReadSourceLocation(Record, Idx));
|
| 4824 | TL.setRParenLoc(ReadSourceLocation(Record, Idx));
|
| 4825 | }
|
| 4826 |
|
| 4827 | TypeSourceInfo *ASTReader::GetTypeSourceInfo(ModuleFile &F,
|
| 4828 | const RecordData &Record,
|
| 4829 | unsigned &Idx) {
|
| 4830 | QualType InfoTy = readType(F, Record, Idx);
|
| 4831 | if (InfoTy.isNull())
|
| 4832 | return 0;
|
| 4833 |
|
| 4834 | TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy);
|
| 4835 | TypeLocReader TLR(*this, F, Record, Idx);
|
| 4836 | for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc())
|
| 4837 | TLR.Visit(TL);
|
| 4838 | return TInfo;
|
| 4839 | }
|
| 4840 |
|
| 4841 | QualType ASTReader::GetType(TypeID ID) {
|
| 4842 | unsigned FastQuals = ID & Qualifiers::FastMask;
|
| 4843 | unsigned Index = ID >> Qualifiers::FastWidth;
|
| 4844 |
|
| 4845 | if (Index < NUM_PREDEF_TYPE_IDS) {
|
| 4846 | QualType T;
|
| 4847 | switch ((PredefinedTypeIDs)Index) {
|
| 4848 | case PREDEF_TYPE_NULL_ID: return QualType();
|
| 4849 | case PREDEF_TYPE_VOID_ID: T = Context.VoidTy; break;
|
| 4850 | case PREDEF_TYPE_BOOL_ID: T = Context.BoolTy; break;
|
| 4851 |
|
| 4852 | case PREDEF_TYPE_CHAR_U_ID:
|
| 4853 | case PREDEF_TYPE_CHAR_S_ID:
|
| 4854 | // FIXME: Check that the signedness of CharTy is correct!
|
| 4855 | T = Context.CharTy;
|
| 4856 | break;
|
| 4857 |
|
| 4858 | case PREDEF_TYPE_UCHAR_ID: T = Context.UnsignedCharTy; break;
|
| 4859 | case PREDEF_TYPE_USHORT_ID: T = Context.UnsignedShortTy; break;
|
| 4860 | case PREDEF_TYPE_UINT_ID: T = Context.UnsignedIntTy; break;
|
| 4861 | case PREDEF_TYPE_ULONG_ID: T = Context.UnsignedLongTy; break;
|
| 4862 | case PREDEF_TYPE_ULONGLONG_ID: T = Context.UnsignedLongLongTy; break;
|
| 4863 | case PREDEF_TYPE_UINT128_ID: T = Context.UnsignedInt128Ty; break;
|
| 4864 | case PREDEF_TYPE_SCHAR_ID: T = Context.SignedCharTy; break;
|
| 4865 | case PREDEF_TYPE_WCHAR_ID: T = Context.WCharTy; break;
|
| 4866 | case PREDEF_TYPE_SHORT_ID: T = Context.ShortTy; break;
|
| 4867 | case PREDEF_TYPE_INT_ID: T = Context.IntTy; break;
|
| 4868 | case PREDEF_TYPE_LONG_ID: T = Context.LongTy; break;
|
| 4869 | case PREDEF_TYPE_LONGLONG_ID: T = Context.LongLongTy; break;
|
| 4870 | case PREDEF_TYPE_INT128_ID: T = Context.Int128Ty; break;
|
| 4871 | case PREDEF_TYPE_HALF_ID: T = Context.HalfTy; break;
|
| 4872 | case PREDEF_TYPE_FLOAT_ID: T = Context.FloatTy; break;
|
| 4873 | case PREDEF_TYPE_DOUBLE_ID: T = Context.DoubleTy; break;
|
| 4874 | case PREDEF_TYPE_LONGDOUBLE_ID: T = Context.LongDoubleTy; break;
|
| 4875 | case PREDEF_TYPE_OVERLOAD_ID: T = Context.OverloadTy; break;
|
| 4876 | case PREDEF_TYPE_BOUND_MEMBER: T = Context.BoundMemberTy; break;
|
| 4877 | case PREDEF_TYPE_PSEUDO_OBJECT: T = Context.PseudoObjectTy; break;
|
| 4878 | case PREDEF_TYPE_DEPENDENT_ID: T = Context.DependentTy; break;
|
| 4879 | case PREDEF_TYPE_UNKNOWN_ANY: T = Context.UnknownAnyTy; break;
|
| 4880 | case PREDEF_TYPE_NULLPTR_ID: T = Context.NullPtrTy; break;
|
| 4881 | case PREDEF_TYPE_CHAR16_ID: T = Context.Char16Ty; break;
|
| 4882 | case PREDEF_TYPE_CHAR32_ID: T = Context.Char32Ty; break;
|
| 4883 | case PREDEF_TYPE_OBJC_ID: T = Context.ObjCBuiltinIdTy; break;
|
| 4884 | case PREDEF_TYPE_OBJC_CLASS: T = Context.ObjCBuiltinClassTy; break;
|
| 4885 | case PREDEF_TYPE_OBJC_SEL: T = Context.ObjCBuiltinSelTy; break;
|
| 4886 | case PREDEF_TYPE_IMAGE1D_ID: T = Context.OCLImage1dTy; break;
|
| 4887 | case PREDEF_TYPE_IMAGE1D_ARR_ID: T = Context.OCLImage1dArrayTy; break;
|
| 4888 | case PREDEF_TYPE_IMAGE1D_BUFF_ID: T = Context.OCLImage1dBufferTy; break;
|
| 4889 | case PREDEF_TYPE_IMAGE2D_ID: T = Context.OCLImage2dTy; break;
|
| 4890 | case PREDEF_TYPE_IMAGE2D_ARR_ID: T = Context.OCLImage2dArrayTy; break;
|
| 4891 | case PREDEF_TYPE_IMAGE3D_ID: T = Context.OCLImage3dTy; break;
|
| 4892 | case PREDEF_TYPE_AUTO_DEDUCT: T = Context.getAutoDeductType(); break;
|
| 4893 |
|
| 4894 | case PREDEF_TYPE_AUTO_RREF_DEDUCT:
|
| 4895 | T = Context.getAutoRRefDeductType();
|
| 4896 | break;
|
| 4897 |
|
| 4898 | case PREDEF_TYPE_ARC_UNBRIDGED_CAST:
|
| 4899 | T = Context.ARCUnbridgedCastTy;
|
| 4900 | break;
|
| 4901 |
|
| 4902 | case PREDEF_TYPE_VA_LIST_TAG:
|
| 4903 | T = Context.getVaListTagType();
|
| 4904 | break;
|
| 4905 |
|
| 4906 | case PREDEF_TYPE_BUILTIN_FN:
|
| 4907 | T = Context.BuiltinFnTy;
|
| 4908 | break;
|
| 4909 | }
|
| 4910 |
|
| 4911 | assert(!T.isNull() && "Unknown predefined type");
|
| 4912 | return T.withFastQualifiers(FastQuals);
|
| 4913 | }
|
| 4914 |
|
| 4915 | Index -= NUM_PREDEF_TYPE_IDS;
|
| 4916 | assert(Index < TypesLoaded.size() && "Type index out-of-range");
|
| 4917 | if (TypesLoaded[Index].isNull()) {
|
| 4918 | TypesLoaded[Index] = readTypeRecord(Index);
|
| 4919 | if (TypesLoaded[Index].isNull())
|
| 4920 | return QualType();
|
| 4921 |
|
| 4922 | TypesLoaded[Index]->setFromAST();
|
| 4923 | if (DeserializationListener)
|
| 4924 | DeserializationListener->TypeRead(TypeIdx::fromTypeID(ID),
|
| 4925 | TypesLoaded[Index]);
|
| 4926 | }
|
| 4927 |
|
| 4928 | return TypesLoaded[Index].withFastQualifiers(FastQuals);
|
| 4929 | }
|
| 4930 |
|
| 4931 | QualType ASTReader::getLocalType(ModuleFile &F, unsigned LocalID) {
|
| 4932 | return GetType(getGlobalTypeID(F, LocalID));
|
| 4933 | }
|
| 4934 |
|
| 4935 | serialization::TypeID
|
| 4936 | ASTReader::getGlobalTypeID(ModuleFile &F, unsigned LocalID) const {
|
| 4937 | unsigned FastQuals = LocalID & Qualifiers::FastMask;
|
| 4938 | unsigned LocalIndex = LocalID >> Qualifiers::FastWidth;
|
| 4939 |
|
| 4940 | if (LocalIndex < NUM_PREDEF_TYPE_IDS)
|
| 4941 | return LocalID;
|
| 4942 |
|
| 4943 | ContinuousRangeMap<uint32_t, int, 2>::iterator I
|
| 4944 | = F.TypeRemap.find(LocalIndex - NUM_PREDEF_TYPE_IDS);
|
| 4945 | assert(I != F.TypeRemap.end() && "Invalid index into type index remap");
|
| 4946 |
|
| 4947 | unsigned GlobalIndex = LocalIndex + I->second;
|
| 4948 | return (GlobalIndex << Qualifiers::FastWidth) | FastQuals;
|
| 4949 | }
|
| 4950 |
|
| 4951 | TemplateArgumentLocInfo
|
| 4952 | ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F,
|
| 4953 | TemplateArgument::ArgKind Kind,
|
| 4954 | const RecordData &Record,
|
| 4955 | unsigned &Index) {
|
| 4956 | switch (Kind) {
|
| 4957 | case TemplateArgument::Expression:
|
| 4958 | return ReadExpr(F);
|
| 4959 | case TemplateArgument::Type:
|
| 4960 | return GetTypeSourceInfo(F, Record, Index);
|
| 4961 | case TemplateArgument::Template: {
|
| 4962 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record,
|
| 4963 | Index);
|
| 4964 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index);
|
| 4965 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc,
|
| 4966 | SourceLocation());
|
| 4967 | }
|
| 4968 | case TemplateArgument::TemplateExpansion: {
|
| 4969 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record,
|
| 4970 | Index);
|
| 4971 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index);
|
| 4972 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Index);
|
| 4973 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc,
|
| 4974 | EllipsisLoc);
|
| 4975 | }
|
| 4976 | case TemplateArgument::Null:
|
| 4977 | case TemplateArgument::Integral:
|
| 4978 | case TemplateArgument::Declaration:
|
| 4979 | case TemplateArgument::NullPtr:
|
| 4980 | case TemplateArgument::Pack:
|
| 4981 | // FIXME: Is this right?
|
| 4982 | return TemplateArgumentLocInfo();
|
| 4983 | }
|
| 4984 | llvm_unreachable("unexpected template argument loc");
|
| 4985 | }
|
| 4986 |
|
| 4987 | TemplateArgumentLoc
|
| 4988 | ASTReader::ReadTemplateArgumentLoc(ModuleFile &F,
|
| 4989 | const RecordData &Record, unsigned &Index) {
|
| 4990 | TemplateArgument Arg = ReadTemplateArgument(F, Record, Index);
|
| 4991 |
|
| 4992 | if (Arg.getKind() == TemplateArgument::Expression) {
|
| 4993 | if (Record[Index++]) // bool InfoHasSameExpr.
|
| 4994 | return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr()));
|
| 4995 | }
|
| 4996 | return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(F, Arg.getKind(),
|
| 4997 | Record, Index));
|
| 4998 | }
|
| 4999 |
|
| 5000 | Decl *ASTReader::GetExternalDecl(uint32_t ID) {
|
| 5001 | return GetDecl(ID);
|
| 5002 | }
|
| 5003 |
|
| 5004 | uint64_t ASTReader::readCXXBaseSpecifiers(ModuleFile &M, const RecordData &Record,
|
| 5005 | unsigned &Idx){
|
| 5006 | if (Idx >= Record.size())
|
| 5007 | return 0;
|
| 5008 |
|
| 5009 | unsigned LocalID = Record[Idx++];
|
| 5010 | return getGlobalBitOffset(M, M.CXXBaseSpecifiersOffsets[LocalID - 1]);
|
| 5011 | }
|
| 5012 |
|
| 5013 | CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) {
|
| 5014 | RecordLocation Loc = getLocalBitOffset(Offset);
|
| 5015 | llvm::BitstreamCursor &Cursor = Loc.F->DeclsCursor;
|
| 5016 | SavedStreamPosition SavedPosition(Cursor);
|
| 5017 | Cursor.JumpToBit(Loc.Offset);
|
| 5018 | ReadingKindTracker ReadingKind(Read_Decl, *this);
|
| 5019 | RecordData Record;
|
| 5020 | unsigned Code = Cursor.ReadCode();
|
| 5021 | unsigned RecCode = Cursor.ReadRecord(Code, Record);
|
| 5022 | if (RecCode != DECL_CXX_BASE_SPECIFIERS) {
|
| 5023 | Error("Malformed AST file: missing C++ base specifiers");
|
| 5024 | return 0;
|
| 5025 | }
|
| 5026 |
|
| 5027 | unsigned Idx = 0;
|
| 5028 | unsigned NumBases = Record[Idx++];
|
| 5029 | void *Mem = Context.Allocate(sizeof(CXXBaseSpecifier) * NumBases);
|
| 5030 | CXXBaseSpecifier *Bases = new (Mem) CXXBaseSpecifier [NumBases];
|
| 5031 | for (unsigned I = 0; I != NumBases; ++I)
|
| 5032 | Bases[I] = ReadCXXBaseSpecifier(*Loc.F, Record, Idx);
|
| 5033 | return Bases;
|
| 5034 | }
|
| 5035 |
|
| 5036 | serialization::DeclID
|
| 5037 | ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const {
|
| 5038 | if (LocalID < NUM_PREDEF_DECL_IDS)
|
| 5039 | return LocalID;
|
| 5040 |
|
| 5041 | ContinuousRangeMap<uint32_t, int, 2>::iterator I
|
| 5042 | = F.DeclRemap.find(LocalID - NUM_PREDEF_DECL_IDS);
|
| 5043 | assert(I != F.DeclRemap.end() && "Invalid index into decl index remap");
|
| 5044 |
|
| 5045 | return LocalID + I->second;
|
| 5046 | }
|
| 5047 |
|
| 5048 | bool ASTReader::isDeclIDFromModule(serialization::GlobalDeclID ID,
|
| 5049 | ModuleFile &M) const {
|
| 5050 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(ID);
|
| 5051 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
|
| 5052 | return &M == I->second;
|
| 5053 | }
|
| 5054 |
|
| 5055 | ModuleFile *ASTReader::getOwningModuleFile(Decl *D) {
|
| 5056 | if (!D->isFromASTFile())
|
| 5057 | return 0;
|
| 5058 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(D->getGlobalID());
|
| 5059 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
|
| 5060 | return I->second;
|
| 5061 | }
|
| 5062 |
|
| 5063 | SourceLocation ASTReader::getSourceLocationForDeclID(GlobalDeclID ID) {
|
| 5064 | if (ID < NUM_PREDEF_DECL_IDS)
|
| 5065 | return SourceLocation();
|
| 5066 |
|
| 5067 | unsigned Index = ID - NUM_PREDEF_DECL_IDS;
|
| 5068 |
|
| 5069 | if (Index > DeclsLoaded.size()) {
|
| 5070 | Error("declaration ID out-of-range for AST file");
|
| 5071 | return SourceLocation();
|
| 5072 | }
|
| 5073 |
|
| 5074 | if (Decl *D = DeclsLoaded[Index])
|
| 5075 | return D->getLocation();
|
| 5076 |
|
| 5077 | unsigned RawLocation = 0;
|
| 5078 | RecordLocation Rec = DeclCursorForID(ID, RawLocation);
|
| 5079 | return ReadSourceLocation(*Rec.F, RawLocation);
|
| 5080 | }
|
| 5081 |
|
| 5082 | Decl *ASTReader::GetDecl(DeclID ID) {
|
| 5083 | if (ID < NUM_PREDEF_DECL_IDS) {
|
| 5084 | switch ((PredefinedDeclIDs)ID) {
|
| 5085 | case PREDEF_DECL_NULL_ID:
|
| 5086 | return 0;
|
| 5087 |
|
| 5088 | case PREDEF_DECL_TRANSLATION_UNIT_ID:
|
| 5089 | return Context.getTranslationUnitDecl();
|
| 5090 |
|
| 5091 | case PREDEF_DECL_OBJC_ID_ID:
|
| 5092 | return Context.getObjCIdDecl();
|
| 5093 |
|
| 5094 | case PREDEF_DECL_OBJC_SEL_ID:
|
| 5095 | return Context.getObjCSelDecl();
|
| 5096 |
|
| 5097 | case PREDEF_DECL_OBJC_CLASS_ID:
|
| 5098 | return Context.getObjCClassDecl();
|
| 5099 |
|
| 5100 | case PREDEF_DECL_OBJC_PROTOCOL_ID:
|
| 5101 | return Context.getObjCProtocolDecl();
|
| 5102 |
|
| 5103 | case PREDEF_DECL_INT_128_ID:
|
| 5104 | return Context.getInt128Decl();
|
| 5105 |
|
| 5106 | case PREDEF_DECL_UNSIGNED_INT_128_ID:
|
| 5107 | return Context.getUInt128Decl();
|
| 5108 |
|
| 5109 | case PREDEF_DECL_OBJC_INSTANCETYPE_ID:
|
| 5110 | return Context.getObjCInstanceTypeDecl();
|
| 5111 |
|
| 5112 | case PREDEF_DECL_BUILTIN_VA_LIST_ID:
|
| 5113 | return Context.getBuiltinVaListDecl();
|
| 5114 | }
|
| 5115 | }
|
| 5116 |
|
| 5117 | unsigned Index = ID - NUM_PREDEF_DECL_IDS;
|
| 5118 |
|
| 5119 | if (Index >= DeclsLoaded.size()) {
|
| 5120 | assert(0 && "declaration ID out-of-range for AST file");
|
| 5121 | Error("declaration ID out-of-range for AST file");
|
| 5122 | return 0;
|
| 5123 | }
|
| 5124 |
|
| 5125 | if (!DeclsLoaded[Index]) {
|
| 5126 | ReadDeclRecord(ID);
|
| 5127 | if (DeserializationListener)
|
| 5128 | DeserializationListener->DeclRead(ID, DeclsLoaded[Index]);
|
| 5129 | }
|
| 5130 |
|
| 5131 | return DeclsLoaded[Index];
|
| 5132 | }
|
| 5133 |
|
| 5134 | DeclID ASTReader::mapGlobalIDToModuleFileGlobalID(ModuleFile &M,
|
| 5135 | DeclID GlobalID) {
|
| 5136 | if (GlobalID < NUM_PREDEF_DECL_IDS)
|
| 5137 | return GlobalID;
|
| 5138 |
|
| 5139 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(GlobalID);
|
| 5140 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
|
| 5141 | ModuleFile *Owner = I->second;
|
| 5142 |
|
| 5143 | llvm::DenseMap<ModuleFile *, serialization::DeclID>::iterator Pos
|
| 5144 | = M.GlobalToLocalDeclIDs.find(Owner);
|
| 5145 | if (Pos == M.GlobalToLocalDeclIDs.end())
|
| 5146 | return 0;
|
| 5147 |
|
| 5148 | return GlobalID - Owner->BaseDeclID + Pos->second;
|
| 5149 | }
|
| 5150 |
|
| 5151 | serialization::DeclID ASTReader::ReadDeclID(ModuleFile &F,
|
| 5152 | const RecordData &Record,
|
| 5153 | unsigned &Idx) {
|
| 5154 | if (Idx >= Record.size()) {
|
| 5155 | Error("Corrupted AST file");
|
| 5156 | return 0;
|
| 5157 | }
|
| 5158 |
|
| 5159 | return getGlobalDeclID(F, Record[Idx++]);
|
| 5160 | }
|
| 5161 |
|
| 5162 | /// \brief Resolve the offset of a statement into a statement.
|
| 5163 | ///
|
| 5164 | /// This operation will read a new statement from the external
|
| 5165 | /// source each time it is called, and is meant to be used via a
|
| 5166 | /// LazyOffsetPtr (which is used by Decls for the body of functions, etc).
|
| 5167 | Stmt *ASTReader::GetExternalDeclStmt(uint64_t Offset) {
|
| 5168 | // Switch case IDs are per Decl.
|
| 5169 | ClearSwitchCaseIDs();
|
| 5170 |
|
| 5171 | // Offset here is a global offset across the entire chain.
|
| 5172 | RecordLocation Loc = getLocalBitOffset(Offset);
|
| 5173 | Loc.F->DeclsCursor.JumpToBit(Loc.Offset);
|
| 5174 | return ReadStmtFromStream(*Loc.F);
|
| 5175 | }
|
| 5176 |
|
| 5177 | namespace {
|
| 5178 | class FindExternalLexicalDeclsVisitor {
|
| 5179 | ASTReader &Reader;
|
| 5180 | const DeclContext *DC;
|
| 5181 | bool (*isKindWeWant)(Decl::Kind);
|
| 5182 |
|
| 5183 | SmallVectorImpl<Decl*> &Decls;
|
| 5184 | bool PredefsVisited[NUM_PREDEF_DECL_IDS];
|
| 5185 |
|
| 5186 | public:
|
| 5187 | FindExternalLexicalDeclsVisitor(ASTReader &Reader, const DeclContext *DC,
|
| 5188 | bool (*isKindWeWant)(Decl::Kind),
|
| 5189 | SmallVectorImpl<Decl*> &Decls)
|
| 5190 | : Reader(Reader), DC(DC), isKindWeWant(isKindWeWant), Decls(Decls)
|
| 5191 | {
|
| 5192 | for (unsigned I = 0; I != NUM_PREDEF_DECL_IDS; ++I)
|
| 5193 | PredefsVisited[I] = false;
|
| 5194 | }
|
| 5195 |
|
| 5196 | static bool visit(ModuleFile &M, bool Preorder, void *UserData) {
|
| 5197 | if (Preorder)
|
| 5198 | return false;
|
| 5199 |
|
| 5200 | FindExternalLexicalDeclsVisitor *This
|
| 5201 | = static_cast<FindExternalLexicalDeclsVisitor *>(UserData);
|
| 5202 |
|
| 5203 | ModuleFile::DeclContextInfosMap::iterator Info
|
| 5204 | = M.DeclContextInfos.find(This->DC);
|
| 5205 | if (Info == M.DeclContextInfos.end() || !Info->second.LexicalDecls)
|
| 5206 | return false;
|
| 5207 |
|
| 5208 | // Load all of the declaration IDs
|
| 5209 | for (const KindDeclIDPair *ID = Info->second.LexicalDecls,
|
| 5210 | *IDE = ID + Info->second.NumLexicalDecls;
|
| 5211 | ID != IDE; ++ID) {
|
| 5212 | if (This->isKindWeWant && !This->isKindWeWant((Decl::Kind)ID->first))
|
| 5213 | continue;
|
| 5214 |
|
| 5215 | // Don't add predefined declarations to the lexical context more
|
| 5216 | // than once.
|
| 5217 | if (ID->second < NUM_PREDEF_DECL_IDS) {
|
| 5218 | if (This->PredefsVisited[ID->second])
|
| 5219 | continue;
|
| 5220 |
|
| 5221 | This->PredefsVisited[ID->second] = true;
|
| 5222 | }
|
| 5223 |
|
| 5224 | if (Decl *D = This->Reader.GetLocalDecl(M, ID->second)) {
|
| 5225 | if (!This->DC->isDeclInLexicalTraversal(D))
|
| 5226 | This->Decls.push_back(D);
|
| 5227 | }
|
| 5228 | }
|
| 5229 |
|
| 5230 | return false;
|
| 5231 | }
|
| 5232 | };
|
| 5233 | }
|
| 5234 |
|
| 5235 | ExternalLoadResult ASTReader::FindExternalLexicalDecls(const DeclContext *DC,
|
| 5236 | bool (*isKindWeWant)(Decl::Kind),
|
| 5237 | SmallVectorImpl<Decl*> &Decls) {
|
| 5238 | // There might be lexical decls in multiple modules, for the TU at
|
| 5239 | // least. Walk all of the modules in the order they were loaded.
|
| 5240 | FindExternalLexicalDeclsVisitor Visitor(*this, DC, isKindWeWant, Decls);
|
| 5241 | ModuleMgr.visitDepthFirst(&FindExternalLexicalDeclsVisitor::visit, &Visitor);
|
| 5242 | ++NumLexicalDeclContextsRead;
|
| 5243 | return ELR_Success;
|
| 5244 | }
|
| 5245 |
|
| 5246 | namespace {
|
| 5247 |
|
| 5248 | class DeclIDComp {
|
| 5249 | ASTReader &Reader;
|
| 5250 | ModuleFile &Mod;
|
| 5251 |
|
| 5252 | public:
|
| 5253 | DeclIDComp(ASTReader &Reader, ModuleFile &M) : Reader(Reader), Mod(M) {}
|
| 5254 |
|
| 5255 | bool operator()(LocalDeclID L, LocalDeclID R) const {
|
| 5256 | SourceLocation LHS = getLocation(L);
|
| 5257 | SourceLocation RHS = getLocation(R);
|
| 5258 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
|
| 5259 | }
|
| 5260 |
|
| 5261 | bool operator()(SourceLocation LHS, LocalDeclID R) const {
|
| 5262 | SourceLocation RHS = getLocation(R);
|
| 5263 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
|
| 5264 | }
|
| 5265 |
|
| 5266 | bool operator()(LocalDeclID L, SourceLocation RHS) const {
|
| 5267 | SourceLocation LHS = getLocation(L);
|
| 5268 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
|
| 5269 | }
|
| 5270 |
|
| 5271 | SourceLocation getLocation(LocalDeclID ID) const {
|
| 5272 | return Reader.getSourceManager().getFileLoc(
|
| 5273 | Reader.getSourceLocationForDeclID(Reader.getGlobalDeclID(Mod, ID)));
|
| 5274 | }
|
| 5275 | };
|
| 5276 |
|
| 5277 | }
|
| 5278 |
|
| 5279 | void ASTReader::FindFileRegionDecls(FileID File,
|
| 5280 | unsigned Offset, unsigned Length,
|
| 5281 | SmallVectorImpl<Decl *> &Decls) {
|
| 5282 | SourceManager &SM = getSourceManager();
|
| 5283 |
|
| 5284 | llvm::DenseMap<FileID, FileDeclsInfo>::iterator I = FileDeclIDs.find(File);
|
| 5285 | if (I == FileDeclIDs.end())
|
| 5286 | return;
|
| 5287 |
|
| 5288 | FileDeclsInfo &DInfo = I->second;
|
| 5289 | if (DInfo.Decls.empty())
|
| 5290 | return;
|
| 5291 |
|
| 5292 | SourceLocation
|
| 5293 | BeginLoc = SM.getLocForStartOfFile(File).getLocWithOffset(Offset);
|
| 5294 | SourceLocation EndLoc = BeginLoc.getLocWithOffset(Length);
|
| 5295 |
|
| 5296 | DeclIDComp DIDComp(*this, *DInfo.Mod);
|
| 5297 | ArrayRef<serialization::LocalDeclID>::iterator
|
| 5298 | BeginIt = std::lower_bound(DInfo.Decls.begin(), DInfo.Decls.end(),
|
| 5299 | BeginLoc, DIDComp);
|
| 5300 | if (BeginIt != DInfo.Decls.begin())
|
| 5301 | --BeginIt;
|
| 5302 |
|
| 5303 | // If we are pointing at a top-level decl inside an objc container, we need
|
| 5304 | // to backtrack until we find it otherwise we will fail to report that the
|
| 5305 | // region overlaps with an objc container.
|
| 5306 | while (BeginIt != DInfo.Decls.begin() &&
|
| 5307 | GetDecl(getGlobalDeclID(*DInfo.Mod, *BeginIt))
|
| 5308 | ->isTopLevelDeclInObjCContainer())
|
| 5309 | --BeginIt;
|
| 5310 |
|
| 5311 | ArrayRef<serialization::LocalDeclID>::iterator
|
| 5312 | EndIt = std::upper_bound(DInfo.Decls.begin(), DInfo.Decls.end(),
|
| 5313 | EndLoc, DIDComp);
|
| 5314 | if (EndIt != DInfo.Decls.end())
|
| 5315 | ++EndIt;
|
| 5316 |
|
| 5317 | for (ArrayRef<serialization::LocalDeclID>::iterator
|
| 5318 | DIt = BeginIt; DIt != EndIt; ++DIt)
|
| 5319 | Decls.push_back(GetDecl(getGlobalDeclID(*DInfo.Mod, *DIt)));
|
| 5320 | }
|
| 5321 |
|
| 5322 | namespace {
|
| 5323 | /// \brief ModuleFile visitor used to perform name lookup into a
|
| 5324 | /// declaration context.
|
| 5325 | class DeclContextNameLookupVisitor {
|
| 5326 | ASTReader &Reader;
|
| 5327 | llvm::SmallVectorImpl<const DeclContext *> &Contexts;
|
| 5328 | DeclarationName Name;
|
| 5329 | SmallVectorImpl<NamedDecl *> &Decls;
|
| 5330 |
|
| 5331 | public:
|
| 5332 | DeclContextNameLookupVisitor(ASTReader &Reader,
|
| 5333 | SmallVectorImpl<const DeclContext *> &Contexts,
|
| 5334 | DeclarationName Name,
|
| 5335 | SmallVectorImpl<NamedDecl *> &Decls)
|
| 5336 | : Reader(Reader), Contexts(Contexts), Name(Name), Decls(Decls) { }
|
| 5337 |
|
| 5338 | static bool visit(ModuleFile &M, void *UserData) {
|
| 5339 | DeclContextNameLookupVisitor *This
|
| 5340 | = static_cast<DeclContextNameLookupVisitor *>(UserData);
|
| 5341 |
|
| 5342 | // Check whether we have any visible declaration information for
|
| 5343 | // this context in this module.
|
| 5344 | ModuleFile::DeclContextInfosMap::iterator Info;
|
| 5345 | bool FoundInfo = false;
|
| 5346 | for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) {
|
| 5347 | Info = M.DeclContextInfos.find(This->Contexts[I]);
|
| 5348 | if (Info != M.DeclContextInfos.end() &&
|
| 5349 | Info->second.NameLookupTableData) {
|
| 5350 | FoundInfo = true;
|
| 5351 | break;
|
| 5352 | }
|
| 5353 | }
|
| 5354 |
|
| 5355 | if (!FoundInfo)
|
| 5356 | return false;
|
| 5357 |
|
| 5358 | // Look for this name within this module.
|
| 5359 | ASTDeclContextNameLookupTable *LookupTable =
|
| 5360 | Info->second.NameLookupTableData;
|
| 5361 | ASTDeclContextNameLookupTable::iterator Pos
|
| 5362 | = LookupTable->find(This->Name);
|
| 5363 | if (Pos == LookupTable->end())
|
| 5364 | return false;
|
| 5365 |
|
| 5366 | bool FoundAnything = false;
|
| 5367 | ASTDeclContextNameLookupTrait::data_type Data = *Pos;
|
| 5368 | for (; Data.first != Data.second; ++Data.first) {
|
| 5369 | NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, *Data.first);
|
| 5370 | if (!ND)
|
| 5371 | continue;
|
| 5372 |
|
| 5373 | if (ND->getDeclName() != This->Name) {
|
| 5374 | // A name might be null because the decl's redeclarable part is
|
| 5375 | // currently read before reading its name. The lookup is triggered by
|
| 5376 | // building that decl (likely indirectly), and so it is later in the
|
| 5377 | // sense of "already existing" and can be ignored here.
|
| 5378 | continue;
|
| 5379 | }
|
| 5380 |
|
| 5381 | // Record this declaration.
|
| 5382 | FoundAnything = true;
|
| 5383 | This->Decls.push_back(ND);
|
| 5384 | }
|
| 5385 |
|
| 5386 | return FoundAnything;
|
| 5387 | }
|
| 5388 | };
|
| 5389 | }
|
| 5390 |
|
| 5391 | DeclContext::lookup_result
|
| 5392 | ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
|
| 5393 | DeclarationName Name) {
|
| 5394 | assert(DC->hasExternalVisibleStorage() &&
|
| 5395 | "DeclContext has no visible decls in storage");
|
| 5396 | if (!Name)
|
| 5397 | return DeclContext::lookup_result(DeclContext::lookup_iterator(0),
|
| 5398 | DeclContext::lookup_iterator(0));
|
| 5399 |
|
| 5400 | SmallVector<NamedDecl *, 64> Decls;
|
| 5401 |
|
| 5402 | // Compute the declaration contexts we need to look into. Multiple such
|
| 5403 | // declaration contexts occur when two declaration contexts from disjoint
|
| 5404 | // modules get merged, e.g., when two namespaces with the same name are
|
| 5405 | // independently defined in separate modules.
|
| 5406 | SmallVector<const DeclContext *, 2> Contexts;
|
| 5407 | Contexts.push_back(DC);
|
| 5408 |
|
| 5409 | if (DC->isNamespace()) {
|
| 5410 | MergedDeclsMap::iterator Merged
|
| 5411 | = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC)));
|
| 5412 | if (Merged != MergedDecls.end()) {
|
| 5413 | for (unsigned I = 0, N = Merged->second.size(); I != N; ++I)
|
| 5414 | Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I])));
|
| 5415 | }
|
| 5416 | }
|
| 5417 |
|
| 5418 | DeclContextNameLookupVisitor Visitor(*this, Contexts, Name, Decls);
|
| 5419 | ModuleMgr.visit(&DeclContextNameLookupVisitor::visit, &Visitor);
|
| 5420 | ++NumVisibleDeclContextsRead;
|
| 5421 | SetExternalVisibleDeclsForName(DC, Name, Decls);
|
| 5422 | return const_cast<DeclContext*>(DC)->lookup(Name);
|
| 5423 | }
|
| 5424 |
|
| 5425 | namespace {
|
| 5426 | /// \brief ModuleFile visitor used to retrieve all visible names in a
|
| 5427 | /// declaration context.
|
| 5428 | class DeclContextAllNamesVisitor {
|
| 5429 | ASTReader &Reader;
|
| 5430 | llvm::SmallVectorImpl<const DeclContext *> &Contexts;
|
| 5431 | llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > &Decls;
|
| 5432 |
|
| 5433 | public:
|
| 5434 | DeclContextAllNamesVisitor(ASTReader &Reader,
|
| 5435 | SmallVectorImpl<const DeclContext *> &Contexts,
|
| 5436 | llvm::DenseMap<DeclarationName,
|
| 5437 | SmallVector<NamedDecl *, 8> > &Decls)
|
| 5438 | : Reader(Reader), Contexts(Contexts), Decls(Decls) { }
|
| 5439 |
|
| 5440 | static bool visit(ModuleFile &M, void *UserData) {
|
| 5441 | DeclContextAllNamesVisitor *This
|
| 5442 | = static_cast<DeclContextAllNamesVisitor *>(UserData);
|
| 5443 |
|
| 5444 | // Check whether we have any visible declaration information for
|
| 5445 | // this context in this module.
|
| 5446 | ModuleFile::DeclContextInfosMap::iterator Info;
|
| 5447 | bool FoundInfo = false;
|
| 5448 | for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) {
|
| 5449 | Info = M.DeclContextInfos.find(This->Contexts[I]);
|
| 5450 | if (Info != M.DeclContextInfos.end() &&
|
| 5451 | Info->second.NameLookupTableData) {
|
| 5452 | FoundInfo = true;
|
| 5453 | break;
|
| 5454 | }
|
| 5455 | }
|
| 5456 |
|
| 5457 | if (!FoundInfo)
|
| 5458 | return false;
|
| 5459 |
|
| 5460 | ASTDeclContextNameLookupTable *LookupTable =
|
| 5461 | Info->second.NameLookupTableData;
|
| 5462 | bool FoundAnything = false;
|
| 5463 | for (ASTDeclContextNameLookupTable::data_iterator
|
| 5464 | I = LookupTable->data_begin(), E = LookupTable->data_end();
|
| 5465 | I != E; ++I) {
|
| 5466 | ASTDeclContextNameLookupTrait::data_type Data = *I;
|
| 5467 | for (; Data.first != Data.second; ++Data.first) {
|
| 5468 | NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M,
|
| 5469 | *Data.first);
|
| 5470 | if (!ND)
|
| 5471 | continue;
|
| 5472 |
|
| 5473 | // Record this declaration.
|
| 5474 | FoundAnything = true;
|
| 5475 | This->Decls[ND->getDeclName()].push_back(ND);
|
| 5476 | }
|
| 5477 | }
|
| 5478 |
|
| 5479 | return FoundAnything;
|
| 5480 | }
|
| 5481 | };
|
| 5482 | }
|
| 5483 |
|
| 5484 | void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) {
|
| 5485 | if (!DC->hasExternalVisibleStorage())
|
| 5486 | return;
|
| 5487 | llvm::DenseMap<DeclarationName, llvm::SmallVector<NamedDecl*, 8> > Decls;
|
| 5488 |
|
| 5489 | // Compute the declaration contexts we need to look into. Multiple such
|
| 5490 | // declaration contexts occur when two declaration contexts from disjoint
|
| 5491 | // modules get merged, e.g., when two namespaces with the same name are
|
| 5492 | // independently defined in separate modules.
|
| 5493 | SmallVector<const DeclContext *, 2> Contexts;
|
| 5494 | Contexts.push_back(DC);
|
| 5495 |
|
| 5496 | if (DC->isNamespace()) {
|
| 5497 | MergedDeclsMap::iterator Merged
|
| 5498 | = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC)));
|
| 5499 | if (Merged != MergedDecls.end()) {
|
| 5500 | for (unsigned I = 0, N = Merged->second.size(); I != N; ++I)
|
| 5501 | Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I])));
|
| 5502 | }
|
| 5503 | }
|
| 5504 |
|
| 5505 | DeclContextAllNamesVisitor Visitor(*this, Contexts, Decls);
|
| 5506 | ModuleMgr.visit(&DeclContextAllNamesVisitor::visit, &Visitor);
|
| 5507 | ++NumVisibleDeclContextsRead;
|
| 5508 |
|
| 5509 | for (llvm::DenseMap<DeclarationName,
|
| 5510 | llvm::SmallVector<NamedDecl*, 8> >::iterator
|
| 5511 | I = Decls.begin(), E = Decls.end(); I != E; ++I) {
|
| 5512 | SetExternalVisibleDeclsForName(DC, I->first, I->second);
|
| 5513 | }
|
| 5514 | const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false);
|
| 5515 | }
|
| 5516 |
|
| 5517 | /// \brief Under non-PCH compilation the consumer receives the objc methods
|
| 5518 | /// before receiving the implementation, and codegen depends on this.
|
| 5519 | /// We simulate this by deserializing and passing to consumer the methods of the
|
| 5520 | /// implementation before passing the deserialized implementation decl.
|
| 5521 | static void PassObjCImplDeclToConsumer(ObjCImplDecl *ImplD,
|
| 5522 | ASTConsumer *Consumer) {
|
| 5523 | assert(ImplD && Consumer);
|
| 5524 |
|
| 5525 | for (ObjCImplDecl::method_iterator
|
| 5526 | I = ImplD->meth_begin(), E = ImplD->meth_end(); I != E; ++I)
|
| 5527 | Consumer->HandleInterestingDecl(DeclGroupRef(*I));
|
| 5528 |
|
| 5529 | Consumer->HandleInterestingDecl(DeclGroupRef(ImplD));
|
| 5530 | }
|
| 5531 |
|
| 5532 | void ASTReader::PassInterestingDeclsToConsumer() {
|
| 5533 | assert(Consumer);
|
| 5534 | while (!InterestingDecls.empty()) {
|
| 5535 | Decl *D = InterestingDecls.front();
|
| 5536 | InterestingDecls.pop_front();
|
| 5537 |
|
| 5538 | PassInterestingDeclToConsumer(D);
|
| 5539 | }
|
| 5540 | }
|
| 5541 |
|
| 5542 | void ASTReader::PassInterestingDeclToConsumer(Decl *D) {
|
| 5543 | if (ObjCImplDecl *ImplD = dyn_cast<ObjCImplDecl>(D))
|
| 5544 | PassObjCImplDeclToConsumer(ImplD, Consumer);
|
| 5545 | else
|
| 5546 | Consumer->HandleInterestingDecl(DeclGroupRef(D));
|
| 5547 | }
|
| 5548 |
|
| 5549 | void ASTReader::StartTranslationUnit(ASTConsumer *Consumer) {
|
| 5550 | this->Consumer = Consumer;
|
| 5551 |
|
| 5552 | if (!Consumer)
|
| 5553 | return;
|
| 5554 |
|
| 5555 | for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) {
|
| 5556 | // Force deserialization of this decl, which will cause it to be queued for
|
| 5557 | // passing to the consumer.
|
| 5558 | GetDecl(ExternalDefinitions[I]);
|
| 5559 | }
|
| 5560 | ExternalDefinitions.clear();
|
| 5561 |
|
| 5562 | PassInterestingDeclsToConsumer();
|
| 5563 | }
|
| 5564 |
|
| 5565 | void ASTReader::PrintStats() {
|
| 5566 | std::fprintf(stderr, "*** AST File Statistics:\n");
|
| 5567 |
|
| 5568 | unsigned NumTypesLoaded
|
| 5569 | = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(),
|
| 5570 | QualType());
|
| 5571 | unsigned NumDeclsLoaded
|
| 5572 | = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(),
|
| 5573 | (Decl *)0);
|
| 5574 | unsigned NumIdentifiersLoaded
|
| 5575 | = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(),
|
| 5576 | IdentifiersLoaded.end(),
|
| 5577 | (IdentifierInfo *)0);
|
| 5578 | unsigned NumMacrosLoaded
|
| 5579 | = MacrosLoaded.size() - std::count(MacrosLoaded.begin(),
|
| 5580 | MacrosLoaded.end(),
|
| 5581 | (MacroInfo *)0);
|
| 5582 | unsigned NumSelectorsLoaded
|
| 5583 | = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(),
|
| 5584 | SelectorsLoaded.end(),
|
| 5585 | Selector());
|
| 5586 |
|
| 5587 | if (unsigned TotalNumSLocEntries = getTotalNumSLocs())
|
| 5588 | std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n",
|
| 5589 | NumSLocEntriesRead, TotalNumSLocEntries,
|
| 5590 | ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100));
|
| 5591 | if (!TypesLoaded.empty())
|
| 5592 | std::fprintf(stderr, " %u/%u types read (%f%%)\n",
|
| 5593 | NumTypesLoaded, (unsigned)TypesLoaded.size(),
|
| 5594 | ((float)NumTypesLoaded/TypesLoaded.size() * 100));
|
| 5595 | if (!DeclsLoaded.empty())
|
| 5596 | std::fprintf(stderr, " %u/%u declarations read (%f%%)\n",
|
| 5597 | NumDeclsLoaded, (unsigned)DeclsLoaded.size(),
|
| 5598 | ((float)NumDeclsLoaded/DeclsLoaded.size() * 100));
|
| 5599 | if (!IdentifiersLoaded.empty())
|
| 5600 | std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n",
|
| 5601 | NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(),
|
| 5602 | ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100));
|
| 5603 | if (!MacrosLoaded.empty())
|
| 5604 | std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
|
| 5605 | NumMacrosLoaded, (unsigned)MacrosLoaded.size(),
|
| 5606 | ((float)NumMacrosLoaded/MacrosLoaded.size() * 100));
|
| 5607 | if (!SelectorsLoaded.empty())
|
| 5608 | std::fprintf(stderr, " %u/%u selectors read (%f%%)\n",
|
| 5609 | NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(),
|
| 5610 | ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100));
|
| 5611 | if (TotalNumStatements)
|
| 5612 | std::fprintf(stderr, " %u/%u statements read (%f%%)\n",
|
| 5613 | NumStatementsRead, TotalNumStatements,
|
| 5614 | ((float)NumStatementsRead/TotalNumStatements * 100));
|
| 5615 | if (TotalNumMacros)
|
| 5616 | std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
|
| 5617 | NumMacrosRead, TotalNumMacros,
|
| 5618 | ((float)NumMacrosRead/TotalNumMacros * 100));
|
| 5619 | if (TotalLexicalDeclContexts)
|
| 5620 | std::fprintf(stderr, " %u/%u lexical declcontexts read (%f%%)\n",
|
| 5621 | NumLexicalDeclContextsRead, TotalLexicalDeclContexts,
|
| 5622 | ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts
|
| 5623 | * 100));
|
| 5624 | if (TotalVisibleDeclContexts)
|
| 5625 | std::fprintf(stderr, " %u/%u visible declcontexts read (%f%%)\n",
|
| 5626 | NumVisibleDeclContextsRead, TotalVisibleDeclContexts,
|
| 5627 | ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts
|
| 5628 | * 100));
|
| 5629 | if (TotalNumMethodPoolEntries) {
|
| 5630 | std::fprintf(stderr, " %u/%u method pool entries read (%f%%)\n",
|
| 5631 | NumMethodPoolEntriesRead, TotalNumMethodPoolEntries,
|
| 5632 | ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries
|
| 5633 | * 100));
|
| 5634 | std::fprintf(stderr, " %u method pool misses\n", NumMethodPoolMisses);
|
| 5635 | }
|
| 5636 | std::fprintf(stderr, "\n");
|
| 5637 | dump();
|
| 5638 | std::fprintf(stderr, "\n");
|
| 5639 | }
|
| 5640 |
|
| 5641 | template<typename Key, typename ModuleFile, unsigned InitialCapacity>
|
| 5642 | static void
|
| 5643 | dumpModuleIDMap(StringRef Name,
|
| 5644 | const ContinuousRangeMap<Key, ModuleFile *,
|
| 5645 | InitialCapacity> &Map) {
|
| 5646 | if (Map.begin() == Map.end())
|
| 5647 | return;
|
| 5648 |
|
| 5649 | typedef ContinuousRangeMap<Key, ModuleFile *, InitialCapacity> MapType;
|
| 5650 | llvm::errs() << Name << ":\n";
|
| 5651 | for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end();
|
| 5652 | I != IEnd; ++I) {
|
| 5653 | llvm::errs() << " " << I->first << " -> " << I->second->FileName
|
| 5654 | << "\n";
|
| 5655 | }
|
| 5656 | }
|
| 5657 |
|
| 5658 | void ASTReader::dump() {
|
| 5659 | llvm::errs() << "*** PCH/ModuleFile Remappings:\n";
|
| 5660 | dumpModuleIDMap("Global bit offset map", GlobalBitOffsetsMap);
|
| 5661 | dumpModuleIDMap("Global source location entry map", GlobalSLocEntryMap);
|
| 5662 | dumpModuleIDMap("Global type map", GlobalTypeMap);
|
| 5663 | dumpModuleIDMap("Global declaration map", GlobalDeclMap);
|
| 5664 | dumpModuleIDMap("Global identifier map", GlobalIdentifierMap);
|
| 5665 | dumpModuleIDMap("Global macro map", GlobalMacroMap);
|
| 5666 | dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap);
|
| 5667 | dumpModuleIDMap("Global selector map", GlobalSelectorMap);
|
| 5668 | dumpModuleIDMap("Global preprocessed entity map",
|
| 5669 | GlobalPreprocessedEntityMap);
|
| 5670 |
|
| 5671 | llvm::errs() << "\n*** PCH/Modules Loaded:";
|
| 5672 | for (ModuleManager::ModuleConstIterator M = ModuleMgr.begin(),
|
| 5673 | MEnd = ModuleMgr.end();
|
| 5674 | M != MEnd; ++M)
|
| 5675 | (*M)->dump();
|
| 5676 | }
|
| 5677 |
|
| 5678 | /// Return the amount of memory used by memory buffers, breaking down
|
| 5679 | /// by heap-backed versus mmap'ed memory.
|
| 5680 | void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const {
|
| 5681 | for (ModuleConstIterator I = ModuleMgr.begin(),
|
| 5682 | E = ModuleMgr.end(); I != E; ++I) {
|
| 5683 | if (llvm::MemoryBuffer *buf = (*I)->Buffer.get()) {
|
| 5684 | size_t bytes = buf->getBufferSize();
|
| 5685 | switch (buf->getBufferKind()) {
|
| 5686 | case llvm::MemoryBuffer::MemoryBuffer_Malloc:
|
| 5687 | sizes.malloc_bytes += bytes;
|
| 5688 | break;
|
| 5689 | case llvm::MemoryBuffer::MemoryBuffer_MMap:
|
| 5690 | sizes.mmap_bytes += bytes;
|
| 5691 | break;
|
| 5692 | }
|
| 5693 | }
|
| 5694 | }
|
| 5695 | }
|
| 5696 |
|
| 5697 | void ASTReader::InitializeSema(Sema &S) {
|
| 5698 | SemaObj = &S;
|
| 5699 | S.addExternalSource(this);
|
| 5700 |
|
| 5701 | // Makes sure any declarations that were deserialized "too early"
|
| 5702 | // still get added to the identifier's declaration chains.
|
| 5703 | for (unsigned I = 0, N = PreloadedDecls.size(); I != N; ++I) {
|
| 5704 | SemaObj->pushExternalDeclIntoScope(PreloadedDecls[I],
|
| 5705 | PreloadedDecls[I]->getDeclName());
|
| 5706 | }
|
| 5707 | PreloadedDecls.clear();
|
| 5708 |
|
| 5709 | // Load the offsets of the declarations that Sema references.
|
| 5710 | // They will be lazily deserialized when needed.
|
| 5711 | if (!SemaDeclRefs.empty()) {
|
| 5712 | assert(SemaDeclRefs.size() == 2 && "More decl refs than expected!");
|
| 5713 | if (!SemaObj->StdNamespace)
|
| 5714 | SemaObj->StdNamespace = SemaDeclRefs[0];
|
| 5715 | if (!SemaObj->StdBadAlloc)
|
| 5716 | SemaObj->StdBadAlloc = SemaDeclRefs[1];
|
| 5717 | }
|
| 5718 |
|
| 5719 | if (!FPPragmaOptions.empty()) {
|
| 5720 | assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS");
|
| 5721 | SemaObj->FPFeatures.fp_contract = FPPragmaOptions[0];
|
| 5722 | }
|
| 5723 |
|
| 5724 | if (!OpenCLExtensions.empty()) {
|
| 5725 | unsigned I = 0;
|
| 5726 | #define OPENCLEXT(nm) SemaObj->OpenCLFeatures.nm = OpenCLExtensions[I++];
|
| 5727 | #include "clang/Basic/OpenCLExtensions.def"
|
| 5728 |
|
| 5729 | assert(OpenCLExtensions.size() == I && "Wrong number of OPENCL_EXTENSIONS");
|
| 5730 | }
|
| 5731 | }
|
| 5732 |
|
| 5733 | IdentifierInfo* ASTReader::get(const char *NameStart, const char *NameEnd) {
|
| 5734 | // Note that we are loading an identifier.
|
| 5735 | Deserializing AnIdentifier(this);
|
| 5736 |
|
| 5737 | IdentifierLookupVisitor Visitor(StringRef(NameStart, NameEnd - NameStart),
|
| 5738 | /*PriorGeneration=*/0);
|
| 5739 | ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor);
|
| 5740 | IdentifierInfo *II = Visitor.getIdentifierInfo();
|
| 5741 | markIdentifierUpToDate(II);
|
| 5742 | return II;
|
| 5743 | }
|
| 5744 |
|
| 5745 | namespace clang {
|
| 5746 | /// \brief An identifier-lookup iterator that enumerates all of the
|
| 5747 | /// identifiers stored within a set of AST files.
|
| 5748 | class ASTIdentifierIterator : public IdentifierIterator {
|
| 5749 | /// \brief The AST reader whose identifiers are being enumerated.
|
| 5750 | const ASTReader &Reader;
|
| 5751 |
|
| 5752 | /// \brief The current index into the chain of AST files stored in
|
| 5753 | /// the AST reader.
|
| 5754 | unsigned Index;
|
| 5755 |
|
| 5756 | /// \brief The current position within the identifier lookup table
|
| 5757 | /// of the current AST file.
|
| 5758 | ASTIdentifierLookupTable::key_iterator Current;
|
| 5759 |
|
| 5760 | /// \brief The end position within the identifier lookup table of
|
| 5761 | /// the current AST file.
|
| 5762 | ASTIdentifierLookupTable::key_iterator End;
|
| 5763 |
|
| 5764 | public:
|
| 5765 | explicit ASTIdentifierIterator(const ASTReader &Reader);
|
| 5766 |
|
| 5767 | virtual StringRef Next();
|
| 5768 | };
|
| 5769 | }
|
| 5770 |
|
| 5771 | ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader)
|
| 5772 | : Reader(Reader), Index(Reader.ModuleMgr.size() - 1) {
|
| 5773 | ASTIdentifierLookupTable *IdTable
|
| 5774 | = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].IdentifierLookupTable;
|
| 5775 | Current = IdTable->key_begin();
|
| 5776 | End = IdTable->key_end();
|
| 5777 | }
|
| 5778 |
|
| 5779 | StringRef ASTIdentifierIterator::Next() {
|
| 5780 | while (Current == End) {
|
| 5781 | // If we have exhausted all of our AST files, we're done.
|
| 5782 | if (Index == 0)
|
| 5783 | return StringRef();
|
| 5784 |
|
| 5785 | --Index;
|
| 5786 | ASTIdentifierLookupTable *IdTable
|
| 5787 | = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].
|
| 5788 | IdentifierLookupTable;
|
| 5789 | Current = IdTable->key_begin();
|
| 5790 | End = IdTable->key_end();
|
| 5791 | }
|
| 5792 |
|
| 5793 | // We have any identifiers remaining in the current AST file; return
|
| 5794 | // the next one.
|
| 5795 | std::pair<const char*, unsigned> Key = *Current;
|
| 5796 | ++Current;
|
| 5797 | return StringRef(Key.first, Key.second);
|
| 5798 | }
|
| 5799 |
|
| 5800 | IdentifierIterator *ASTReader::getIdentifiers() const {
|
| 5801 | return new ASTIdentifierIterator(*this);
|
| 5802 | }
|
| 5803 |
|
| 5804 | namespace clang { namespace serialization {
|
| 5805 | class ReadMethodPoolVisitor {
|
| 5806 | ASTReader &Reader;
|
| 5807 | Selector Sel;
|
| 5808 | unsigned PriorGeneration;
|
| 5809 | llvm::SmallVector<ObjCMethodDecl *, 4> InstanceMethods;
|
| 5810 | llvm::SmallVector<ObjCMethodDecl *, 4> FactoryMethods;
|
| 5811 |
|
| 5812 | public:
|
| 5813 | ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel,
|
| 5814 | unsigned PriorGeneration)
|
| 5815 | : Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) { }
|
| 5816 |
|
| 5817 | static bool visit(ModuleFile &M, void *UserData) {
|
| 5818 | ReadMethodPoolVisitor *This
|
| 5819 | = static_cast<ReadMethodPoolVisitor *>(UserData);
|
| 5820 |
|
| 5821 | if (!M.SelectorLookupTable)
|
| 5822 | return false;
|
| 5823 |
|
| 5824 | // If we've already searched this module file, skip it now.
|
| 5825 | if (M.Generation <= This->PriorGeneration)
|
| 5826 | return true;
|
| 5827 |
|
| 5828 | ASTSelectorLookupTable *PoolTable
|
| 5829 | = (ASTSelectorLookupTable*)M.SelectorLookupTable;
|
| 5830 | ASTSelectorLookupTable::iterator Pos = PoolTable->find(This->Sel);
|
| 5831 | if (Pos == PoolTable->end())
|
| 5832 | return false;
|
| 5833 |
|
| 5834 | ++This->Reader.NumSelectorsRead;
|
| 5835 | // FIXME: Not quite happy with the statistics here. We probably should
|
| 5836 | // disable this tracking when called via LoadSelector.
|
| 5837 | // Also, should entries without methods count as misses?
|
| 5838 | ++This->Reader.NumMethodPoolEntriesRead;
|
| 5839 | ASTSelectorLookupTrait::data_type Data = *Pos;
|
| 5840 | if (This->Reader.DeserializationListener)
|
| 5841 | This->Reader.DeserializationListener->SelectorRead(Data.ID,
|
| 5842 | This->Sel);
|
| 5843 |
|
| 5844 | This->InstanceMethods.append(Data.Instance.begin(), Data.Instance.end());
|
| 5845 | This->FactoryMethods.append(Data.Factory.begin(), Data.Factory.end());
|
| 5846 | return true;
|
| 5847 | }
|
| 5848 |
|
| 5849 | /// \brief Retrieve the instance methods found by this visitor.
|
| 5850 | ArrayRef<ObjCMethodDecl *> getInstanceMethods() const {
|
| 5851 | return InstanceMethods;
|
| 5852 | }
|
| 5853 |
|
| 5854 | /// \brief Retrieve the instance methods found by this visitor.
|
| 5855 | ArrayRef<ObjCMethodDecl *> getFactoryMethods() const {
|
| 5856 | return FactoryMethods;
|
| 5857 | }
|
| 5858 | };
|
| 5859 | } } // end namespace clang::serialization
|
| 5860 |
|
| 5861 | /// \brief Add the given set of methods to the method list.
|
| 5862 | static void addMethodsToPool(Sema &S, ArrayRef<ObjCMethodDecl *> Methods,
|
| 5863 | ObjCMethodList &List) {
|
| 5864 | for (unsigned I = 0, N = Methods.size(); I != N; ++I) {
|
| 5865 | S.addMethodToGlobalList(&List, Methods[I]);
|
| 5866 | }
|
| 5867 | }
|
| 5868 |
|
| 5869 | void ASTReader::ReadMethodPool(Selector Sel) {
|
| 5870 | // Get the selector generation and update it to the current generation.
|
| 5871 | unsigned &Generation = SelectorGeneration[Sel];
|
| 5872 | unsigned PriorGeneration = Generation;
|
| 5873 | Generation = CurrentGeneration;
|
| 5874 |
|
| 5875 | // Search for methods defined with this selector.
|
| 5876 | ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration);
|
| 5877 | ModuleMgr.visit(&ReadMethodPoolVisitor::visit, &Visitor);
|
| 5878 |
|
| 5879 | if (Visitor.getInstanceMethods().empty() &&
|
| 5880 | Visitor.getFactoryMethods().empty()) {
|
| 5881 | ++NumMethodPoolMisses;
|
| 5882 | return;
|
| 5883 | }
|
| 5884 |
|
| 5885 | if (!getSema())
|
| 5886 | return;
|
| 5887 |
|
| 5888 | Sema &S = *getSema();
|
| 5889 | Sema::GlobalMethodPool::iterator Pos
|
| 5890 | = S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first;
|
| 5891 |
|
| 5892 | addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first);
|
| 5893 | addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second);
|
| 5894 | }
|
| 5895 |
|
| 5896 | void ASTReader::ReadKnownNamespaces(
|
| 5897 | SmallVectorImpl<NamespaceDecl *> &Namespaces) {
|
| 5898 | Namespaces.clear();
|
| 5899 |
|
| 5900 | for (unsigned I = 0, N = KnownNamespaces.size(); I != N; ++I) {
|
| 5901 | if (NamespaceDecl *Namespace
|
| 5902 | = dyn_cast_or_null<NamespaceDecl>(GetDecl(KnownNamespaces[I])))
|
| 5903 | Namespaces.push_back(Namespace);
|
| 5904 | }
|
| 5905 | }
|
| 5906 |
|
| 5907 | void ASTReader::ReadTentativeDefinitions(
|
| 5908 | SmallVectorImpl<VarDecl *> &TentativeDefs) {
|
| 5909 | for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) {
|
| 5910 | VarDecl *Var = dyn_cast_or_null<VarDecl>(GetDecl(TentativeDefinitions[I]));
|
| 5911 | if (Var)
|
| 5912 | TentativeDefs.push_back(Var);
|
| 5913 | }
|
| 5914 | TentativeDefinitions.clear();
|
| 5915 | }
|
| 5916 |
|
| 5917 | void ASTReader::ReadUnusedFileScopedDecls(
|
| 5918 | SmallVectorImpl<const DeclaratorDecl *> &Decls) {
|
| 5919 | for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) {
|
| 5920 | DeclaratorDecl *D
|
| 5921 | = dyn_cast_or_null<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I]));
|
| 5922 | if (D)
|
| 5923 | Decls.push_back(D);
|
| 5924 | }
|
| 5925 | UnusedFileScopedDecls.clear();
|
| 5926 | }
|
| 5927 |
|
| 5928 | void ASTReader::ReadDelegatingConstructors(
|
| 5929 | SmallVectorImpl<CXXConstructorDecl *> &Decls) {
|
| 5930 | for (unsigned I = 0, N = DelegatingCtorDecls.size(); I != N; ++I) {
|
| 5931 | CXXConstructorDecl *D
|
| 5932 | = dyn_cast_or_null<CXXConstructorDecl>(GetDecl(DelegatingCtorDecls[I]));
|
| 5933 | if (D)
|
| 5934 | Decls.push_back(D);
|
| 5935 | }
|
| 5936 | DelegatingCtorDecls.clear();
|
| 5937 | }
|
| 5938 |
|
| 5939 | void ASTReader::ReadExtVectorDecls(SmallVectorImpl<TypedefNameDecl *> &Decls) {
|
| 5940 | for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I) {
|
| 5941 | TypedefNameDecl *D
|
| 5942 | = dyn_cast_or_null<TypedefNameDecl>(GetDecl(ExtVectorDecls[I]));
|
| 5943 | if (D)
|
| 5944 | Decls.push_back(D);
|
| 5945 | }
|
| 5946 | ExtVectorDecls.clear();
|
| 5947 | }
|
| 5948 |
|
| 5949 | void ASTReader::ReadDynamicClasses(SmallVectorImpl<CXXRecordDecl *> &Decls) {
|
| 5950 | for (unsigned I = 0, N = DynamicClasses.size(); I != N; ++I) {
|
| 5951 | CXXRecordDecl *D
|
| 5952 | = dyn_cast_or_null<CXXRecordDecl>(GetDecl(DynamicClasses[I]));
|
| 5953 | if (D)
|
| 5954 | Decls.push_back(D);
|
| 5955 | }
|
| 5956 | DynamicClasses.clear();
|
| 5957 | }
|
| 5958 |
|
| 5959 | void
|
| 5960 | ASTReader::ReadLocallyScopedExternalDecls(SmallVectorImpl<NamedDecl *> &Decls) {
|
| 5961 | for (unsigned I = 0, N = LocallyScopedExternalDecls.size(); I != N; ++I) {
|
| 5962 | NamedDecl *D
|
| 5963 | = dyn_cast_or_null<NamedDecl>(GetDecl(LocallyScopedExternalDecls[I]));
|
| 5964 | if (D)
|
| 5965 | Decls.push_back(D);
|
| 5966 | }
|
| 5967 | LocallyScopedExternalDecls.clear();
|
| 5968 | }
|
| 5969 |
|
| 5970 | void ASTReader::ReadReferencedSelectors(
|
| 5971 | SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) {
|
| 5972 | if (ReferencedSelectorsData.empty())
|
| 5973 | return;
|
| 5974 |
|
| 5975 | // If there are @selector references added them to its pool. This is for
|
| 5976 | // implementation of -Wselector.
|
| 5977 | unsigned int DataSize = ReferencedSelectorsData.size()-1;
|
| 5978 | unsigned I = 0;
|
| 5979 | while (I < DataSize) {
|
| 5980 | Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]);
|
| 5981 | SourceLocation SelLoc
|
| 5982 | = SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]);
|
| 5983 | Sels.push_back(std::make_pair(Sel, SelLoc));
|
| 5984 | }
|
| 5985 | ReferencedSelectorsData.clear();
|
| 5986 | }
|
| 5987 |
|
| 5988 | void ASTReader::ReadWeakUndeclaredIdentifiers(
|
| 5989 | SmallVectorImpl<std::pair<IdentifierInfo *, WeakInfo> > &WeakIDs) {
|
| 5990 | if (WeakUndeclaredIdentifiers.empty())
|
| 5991 | return;
|
| 5992 |
|
| 5993 | for (unsigned I = 0, N = WeakUndeclaredIdentifiers.size(); I < N; /*none*/) {
|
| 5994 | IdentifierInfo *WeakId
|
| 5995 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]);
|
| 5996 | IdentifierInfo *AliasId
|
| 5997 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]);
|
| 5998 | SourceLocation Loc
|
| 5999 | = SourceLocation::getFromRawEncoding(WeakUndeclaredIdentifiers[I++]);
|
| 6000 | bool Used = WeakUndeclaredIdentifiers[I++];
|
| 6001 | WeakInfo WI(AliasId, Loc);
|
| 6002 | WI.setUsed(Used);
|
| 6003 | WeakIDs.push_back(std::make_pair(WeakId, WI));
|
| 6004 | }
|
| 6005 | WeakUndeclaredIdentifiers.clear();
|
| 6006 | }
|
| 6007 |
|
| 6008 | void ASTReader::ReadUsedVTables(SmallVectorImpl<ExternalVTableUse> &VTables) {
|
| 6009 | for (unsigned Idx = 0, N = VTableUses.size(); Idx < N; /* In loop */) {
|
| 6010 | ExternalVTableUse VT;
|
| 6011 | VT.Record = dyn_cast_or_null<CXXRecordDecl>(GetDecl(VTableUses[Idx++]));
|
| 6012 | VT.Location = SourceLocation::getFromRawEncoding(VTableUses[Idx++]);
|
| 6013 | VT.DefinitionRequired = VTableUses[Idx++];
|
| 6014 | VTables.push_back(VT);
|
| 6015 | }
|
| 6016 |
|
| 6017 | VTableUses.clear();
|
| 6018 | }
|
| 6019 |
|
| 6020 | void ASTReader::ReadPendingInstantiations(
|
| 6021 | SmallVectorImpl<std::pair<ValueDecl *, SourceLocation> > &Pending) {
|
| 6022 | for (unsigned Idx = 0, N = PendingInstantiations.size(); Idx < N;) {
|
| 6023 | ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++]));
|
| 6024 | SourceLocation Loc
|
| 6025 | = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]);
|
| 6026 |
|
| 6027 | Pending.push_back(std::make_pair(D, Loc));
|
| 6028 | }
|
| 6029 | PendingInstantiations.clear();
|
| 6030 | }
|
| 6031 |
|
| 6032 | void ASTReader::LoadSelector(Selector Sel) {
|
| 6033 | // It would be complicated to avoid reading the methods anyway. So don't.
|
| 6034 | ReadMethodPool(Sel);
|
| 6035 | }
|
| 6036 |
|
| 6037 | void ASTReader::SetIdentifierInfo(IdentifierID ID, IdentifierInfo *II) {
|
| 6038 | assert(ID && "Non-zero identifier ID required");
|
| 6039 | assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range");
|
| 6040 | IdentifiersLoaded[ID - 1] = II;
|
| 6041 | if (DeserializationListener)
|
| 6042 | DeserializationListener->IdentifierRead(ID, II);
|
| 6043 | }
|
| 6044 |
|
| 6045 | /// \brief Set the globally-visible declarations associated with the given
|
| 6046 | /// identifier.
|
| 6047 | ///
|
| 6048 | /// If the AST reader is currently in a state where the given declaration IDs
|
| 6049 | /// cannot safely be resolved, they are queued until it is safe to resolve
|
| 6050 | /// them.
|
| 6051 | ///
|
| 6052 | /// \param II an IdentifierInfo that refers to one or more globally-visible
|
| 6053 | /// declarations.
|
| 6054 | ///
|
| 6055 | /// \param DeclIDs the set of declaration IDs with the name @p II that are
|
| 6056 | /// visible at global scope.
|
| 6057 | ///
|
| 6058 | /// \param Nonrecursive should be true to indicate that the caller knows that
|
| 6059 | /// this call is non-recursive, and therefore the globally-visible declarations
|
| 6060 | /// will not be placed onto the pending queue.
|
| 6061 | void
|
| 6062 | ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II,
|
| 6063 | const SmallVectorImpl<uint32_t> &DeclIDs,
|
| 6064 | bool Nonrecursive) {
|
| 6065 | if (NumCurrentElementsDeserializing && !Nonrecursive) {
|
| 6066 | PendingIdentifierInfos.push_back(PendingIdentifierInfo());
|
| 6067 | PendingIdentifierInfo &PII = PendingIdentifierInfos.back();
|
| 6068 | PII.II = II;
|
| 6069 | PII.DeclIDs.append(DeclIDs.begin(), DeclIDs.end());
|
| 6070 | return;
|
| 6071 | }
|
| 6072 |
|
| 6073 | for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) {
|
| 6074 | NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I]));
|
| 6075 | if (SemaObj) {
|
| 6076 | // Introduce this declaration into the translation-unit scope
|
| 6077 | // and add it to the declaration chain for this identifier, so
|
| 6078 | // that (unqualified) name lookup will find it.
|
| 6079 | SemaObj->pushExternalDeclIntoScope(D, II);
|
| 6080 | } else {
|
| 6081 | // Queue this declaration so that it will be added to the
|
| 6082 | // translation unit scope and identifier's declaration chain
|
| 6083 | // once a Sema object is known.
|
| 6084 | PreloadedDecls.push_back(D);
|
| 6085 | }
|
| 6086 | }
|
| 6087 | }
|
| 6088 |
|
| 6089 | IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) {
|
| 6090 | if (ID == 0)
|
| 6091 | return 0;
|
| 6092 |
|
| 6093 | if (IdentifiersLoaded.empty()) {
|
| 6094 | Error("no identifier table in AST file");
|
| 6095 | return 0;
|
| 6096 | }
|
| 6097 |
|
| 6098 | ID -= 1;
|
| 6099 | if (!IdentifiersLoaded[ID]) {
|
| 6100 | GlobalIdentifierMapType::iterator I = GlobalIdentifierMap.find(ID + 1);
|
| 6101 | assert(I != GlobalIdentifierMap.end() && "Corrupted global identifier map");
|
| 6102 | ModuleFile *M = I->second;
|
| 6103 | unsigned Index = ID - M->BaseIdentifierID;
|
| 6104 | const char *Str = M->IdentifierTableData + M->IdentifierOffsets[Index];
|
| 6105 |
|
| 6106 | // All of the strings in the AST file are preceded by a 16-bit length.
|
| 6107 | // Extract that 16-bit length to avoid having to execute strlen().
|
| 6108 | // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as
|
| 6109 | // unsigned integers. This is important to avoid integer overflow when
|
| 6110 | // we cast them to 'unsigned'.
|
| 6111 | const unsigned char *StrLenPtr = (const unsigned char*) Str - 2;
|
| 6112 | unsigned StrLen = (((unsigned) StrLenPtr[0])
|
| 6113 | | (((unsigned) StrLenPtr[1]) << 8)) - 1;
|
| 6114 | IdentifiersLoaded[ID]
|
| 6115 | = &PP.getIdentifierTable().get(StringRef(Str, StrLen));
|
| 6116 | if (DeserializationListener)
|
| 6117 | DeserializationListener->IdentifierRead(ID + 1, IdentifiersLoaded[ID]);
|
| 6118 | }
|
| 6119 |
|
| 6120 | return IdentifiersLoaded[ID];
|
| 6121 | }
|
| 6122 |
|
| 6123 | IdentifierInfo *ASTReader::getLocalIdentifier(ModuleFile &M, unsigned LocalID) {
|
| 6124 | return DecodeIdentifierInfo(getGlobalIdentifierID(M, LocalID));
|
| 6125 | }
|
| 6126 |
|
| 6127 | IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) {
|
| 6128 | if (LocalID < NUM_PREDEF_IDENT_IDS)
|
| 6129 | return LocalID;
|
| 6130 |
|
| 6131 | ContinuousRangeMap<uint32_t, int, 2>::iterator I
|
| 6132 | = M.IdentifierRemap.find(LocalID - NUM_PREDEF_IDENT_IDS);
|
| 6133 | assert(I != M.IdentifierRemap.end()
|
| 6134 | && "Invalid index into identifier index remap");
|
| 6135 |
|
| 6136 | return LocalID + I->second;
|
| 6137 | }
|
| 6138 |
|
| 6139 | MacroInfo *ASTReader::getMacro(MacroID ID, MacroInfo *Hint) {
|
| 6140 | if (ID == 0)
|
| 6141 | return 0;
|
| 6142 |
|
| 6143 | if (MacrosLoaded.empty()) {
|
| 6144 | Error("no macro table in AST file");
|
| 6145 | return 0;
|
| 6146 | }
|
| 6147 |
|
| 6148 | ID -= NUM_PREDEF_MACRO_IDS;
|
| 6149 | if (!MacrosLoaded[ID]) {
|
| 6150 | GlobalMacroMapType::iterator I
|
| 6151 | = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS);
|
| 6152 | assert(I != GlobalMacroMap.end() && "Corrupted global macro map");
|
| 6153 | ModuleFile *M = I->second;
|
| 6154 | unsigned Index = ID - M->BaseMacroID;
|
| 6155 | ReadMacroRecord(*M, M->MacroOffsets[Index], Hint);
|
| 6156 | }
|
| 6157 |
|
| 6158 | return MacrosLoaded[ID];
|
| 6159 | }
|
| 6160 |
|
| 6161 | MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) {
|
| 6162 | if (LocalID < NUM_PREDEF_MACRO_IDS)
|
| 6163 | return LocalID;
|
| 6164 |
|
| 6165 | ContinuousRangeMap<uint32_t, int, 2>::iterator I
|
| 6166 | = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS);
|
| 6167 | assert(I != M.MacroRemap.end() && "Invalid index into macro index remap");
|
| 6168 |
|
| 6169 | return LocalID + I->second;
|
| 6170 | }
|
| 6171 |
|
| 6172 | serialization::SubmoduleID
|
| 6173 | ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) {
|
| 6174 | if (LocalID < NUM_PREDEF_SUBMODULE_IDS)
|
| 6175 | return LocalID;
|
| 6176 |
|
| 6177 | ContinuousRangeMap<uint32_t, int, 2>::iterator I
|
| 6178 | = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS);
|
| 6179 | assert(I != M.SubmoduleRemap.end()
|
| 6180 | && "Invalid index into submodule index remap");
|
| 6181 |
|
| 6182 | return LocalID + I->second;
|
| 6183 | }
|
| 6184 |
|
| 6185 | Module *ASTReader::getSubmodule(SubmoduleID GlobalID) {
|
| 6186 | if (GlobalID < NUM_PREDEF_SUBMODULE_IDS) {
|
| 6187 | assert(GlobalID == 0 && "Unhandled global submodule ID");
|
| 6188 | return 0;
|
| 6189 | }
|
| 6190 |
|
| 6191 | if (GlobalID > SubmodulesLoaded.size()) {
|
| 6192 | Error("submodule ID out of range in AST file");
|
| 6193 | return 0;
|
| 6194 | }
|
| 6195 |
|
| 6196 | return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS];
|
| 6197 | }
|
| 6198 |
|
| 6199 | Selector ASTReader::getLocalSelector(ModuleFile &M, unsigned LocalID) {
|
| 6200 | return DecodeSelector(getGlobalSelectorID(M, LocalID));
|
| 6201 | }
|
| 6202 |
|
| 6203 | Selector ASTReader::DecodeSelector(serialization::SelectorID ID) {
|
| 6204 | if (ID == 0)
|
| 6205 | return Selector();
|
| 6206 |
|
| 6207 | if (ID > SelectorsLoaded.size()) {
|
| 6208 | Error("selector ID out of range in AST file");
|
| 6209 | return Selector();
|
| 6210 | }
|
| 6211 |
|
| 6212 | if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == 0) {
|
| 6213 | // Load this selector from the selector table.
|
| 6214 | GlobalSelectorMapType::iterator I = GlobalSelectorMap.find(ID);
|
| 6215 | assert(I != GlobalSelectorMap.end() && "Corrupted global selector map");
|
| 6216 | ModuleFile &M = *I->second;
|
| 6217 | ASTSelectorLookupTrait Trait(*this, M);
|
| 6218 | unsigned Idx = ID - M.BaseSelectorID - NUM_PREDEF_SELECTOR_IDS;
|
| 6219 | SelectorsLoaded[ID - 1] =
|
| 6220 | Trait.ReadKey(M.SelectorLookupTableData + M.SelectorOffsets[Idx], 0);
|
| 6221 | if (DeserializationListener)
|
| 6222 | DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]);
|
| 6223 | }
|
| 6224 |
|
| 6225 | return SelectorsLoaded[ID - 1];
|
| 6226 | }
|
| 6227 |
|
| 6228 | Selector ASTReader::GetExternalSelector(serialization::SelectorID ID) {
|
| 6229 | return DecodeSelector(ID);
|
| 6230 | }
|
| 6231 |
|
| 6232 | uint32_t ASTReader::GetNumExternalSelectors() {
|
| 6233 | // ID 0 (the null selector) is considered an external selector.
|
| 6234 | return getTotalNumSelectors() + 1;
|
| 6235 | }
|
| 6236 |
|
| 6237 | serialization::SelectorID
|
| 6238 | ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const {
|
| 6239 | if (LocalID < NUM_PREDEF_SELECTOR_IDS)
|
| 6240 | return LocalID;
|
| 6241 |
|
| 6242 | ContinuousRangeMap<uint32_t, int, 2>::iterator I
|
| 6243 | = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS);
|
| 6244 | assert(I != M.SelectorRemap.end()
|
| 6245 | && "Invalid index into selector index remap");
|
| 6246 |
|
| 6247 | return LocalID + I->second;
|
| 6248 | }
|
| 6249 |
|
| 6250 | DeclarationName
|
| 6251 | ASTReader::ReadDeclarationName(ModuleFile &F,
|
| 6252 | const RecordData &Record, unsigned &Idx) {
|
| 6253 | DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++];
|
| 6254 | switch (Kind) {
|
| 6255 | case DeclarationName::Identifier:
|
| 6256 | return DeclarationName(GetIdentifierInfo(F, Record, Idx));
|
| 6257 |
|
| 6258 | case DeclarationName::ObjCZeroArgSelector:
|
| 6259 | case DeclarationName::ObjCOneArgSelector:
|
| 6260 | case DeclarationName::ObjCMultiArgSelector:
|
| 6261 | return DeclarationName(ReadSelector(F, Record, Idx));
|
| 6262 |
|
| 6263 | case DeclarationName::CXXConstructorName:
|
| 6264 | return Context.DeclarationNames.getCXXConstructorName(
|
| 6265 | Context.getCanonicalType(readType(F, Record, Idx)));
|
| 6266 |
|
| 6267 | case DeclarationName::CXXDestructorName:
|
| 6268 | return Context.DeclarationNames.getCXXDestructorName(
|
| 6269 | Context.getCanonicalType(readType(F, Record, Idx)));
|
| 6270 |
|
| 6271 | case DeclarationName::CXXConversionFunctionName:
|
| 6272 | return Context.DeclarationNames.getCXXConversionFunctionName(
|
| 6273 | Context.getCanonicalType(readType(F, Record, Idx)));
|
| 6274 |
|
| 6275 | case DeclarationName::CXXOperatorName:
|
| 6276 | return Context.DeclarationNames.getCXXOperatorName(
|
| 6277 | (OverloadedOperatorKind)Record[Idx++]);
|
| 6278 |
|
| 6279 | case DeclarationName::CXXLiteralOperatorName:
|
| 6280 | return Context.DeclarationNames.getCXXLiteralOperatorName(
|
| 6281 | GetIdentifierInfo(F, Record, Idx));
|
| 6282 |
|
| 6283 | case DeclarationName::CXXUsingDirective:
|
| 6284 | return DeclarationName::getUsingDirectiveName();
|
| 6285 | }
|
| 6286 |
|
| 6287 | llvm_unreachable("Invalid NameKind!");
|
| 6288 | }
|
| 6289 |
|
| 6290 | void ASTReader::ReadDeclarationNameLoc(ModuleFile &F,
|
| 6291 | DeclarationNameLoc &DNLoc,
|
| 6292 | DeclarationName Name,
|
| 6293 | const RecordData &Record, unsigned &Idx) {
|
| 6294 | switch (Name.getNameKind()) {
|
| 6295 | case DeclarationName::CXXConstructorName:
|
| 6296 | case DeclarationName::CXXDestructorName:
|
| 6297 | case DeclarationName::CXXConversionFunctionName:
|
| 6298 | DNLoc.NamedType.TInfo = GetTypeSourceInfo(F, Record, Idx);
|
| 6299 | break;
|
| 6300 |
|
| 6301 | case DeclarationName::CXXOperatorName:
|
| 6302 | DNLoc.CXXOperatorName.BeginOpNameLoc
|
| 6303 | = ReadSourceLocation(F, Record, Idx).getRawEncoding();
|
| 6304 | DNLoc.CXXOperatorName.EndOpNameLoc
|
| 6305 | = ReadSourceLocation(F, Record, Idx).getRawEncoding();
|
| 6306 | break;
|
| 6307 |
|
| 6308 | case DeclarationName::CXXLiteralOperatorName:
|
| 6309 | DNLoc.CXXLiteralOperatorName.OpNameLoc
|
| 6310 | = ReadSourceLocation(F, Record, Idx).getRawEncoding();
|
| 6311 | break;
|
| 6312 |
|
| 6313 | case DeclarationName::Identifier:
|
| 6314 | case DeclarationName::ObjCZeroArgSelector:
|
| 6315 | case DeclarationName::ObjCOneArgSelector:
|
| 6316 | case DeclarationName::ObjCMultiArgSelector:
|
| 6317 | case DeclarationName::CXXUsingDirective:
|
| 6318 | break;
|
| 6319 | }
|
| 6320 | }
|
| 6321 |
|
| 6322 | void ASTReader::ReadDeclarationNameInfo(ModuleFile &F,
|
| 6323 | DeclarationNameInfo &NameInfo,
|
| 6324 | const RecordData &Record, unsigned &Idx) {
|
| 6325 | NameInfo.setName(ReadDeclarationName(F, Record, Idx));
|
| 6326 | NameInfo.setLoc(ReadSourceLocation(F, Record, Idx));
|
| 6327 | DeclarationNameLoc DNLoc;
|
| 6328 | ReadDeclarationNameLoc(F, DNLoc, NameInfo.getName(), Record, Idx);
|
| 6329 | NameInfo.setInfo(DNLoc);
|
| 6330 | }
|
| 6331 |
|
| 6332 | void ASTReader::ReadQualifierInfo(ModuleFile &F, QualifierInfo &Info,
|
| 6333 | const RecordData &Record, unsigned &Idx) {
|
| 6334 | Info.QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx);
|
| 6335 | unsigned NumTPLists = Record[Idx++];
|
| 6336 | Info.NumTemplParamLists = NumTPLists;
|
| 6337 | if (NumTPLists) {
|
| 6338 | Info.TemplParamLists = new (Context) TemplateParameterList*[NumTPLists];
|
| 6339 | for (unsigned i=0; i != NumTPLists; ++i)
|
| 6340 | Info.TemplParamLists[i] = ReadTemplateParameterList(F, Record, Idx);
|
| 6341 | }
|
| 6342 | }
|
| 6343 |
|
| 6344 | TemplateName
|
| 6345 | ASTReader::ReadTemplateName(ModuleFile &F, const RecordData &Record,
|
| 6346 | unsigned &Idx) {
|
| 6347 | TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++];
|
| 6348 | switch (Kind) {
|
| 6349 | case TemplateName::Template:
|
| 6350 | return TemplateName(ReadDeclAs<TemplateDecl>(F, Record, Idx));
|
| 6351 |
|
| 6352 | case TemplateName::OverloadedTemplate: {
|
| 6353 | unsigned size = Record[Idx++];
|
| 6354 | UnresolvedSet<8> Decls;
|
| 6355 | while (size--)
|
| 6356 | Decls.addDecl(ReadDeclAs<NamedDecl>(F, Record, Idx));
|
| 6357 |
|
| 6358 | return Context.getOverloadedTemplateName(Decls.begin(), Decls.end());
|
| 6359 | }
|
| 6360 |
|
| 6361 | case TemplateName::QualifiedTemplate: {
|
| 6362 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx);
|
| 6363 | bool hasTemplKeyword = Record[Idx++];
|
| 6364 | TemplateDecl *Template = ReadDeclAs<TemplateDecl>(F, Record, Idx);
|
| 6365 | return Context.getQualifiedTemplateName(NNS, hasTemplKeyword, Template);
|
| 6366 | }
|
| 6367 |
|
| 6368 | case TemplateName::DependentTemplate: {
|
| 6369 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx);
|
| 6370 | if (Record[Idx++]) // isIdentifier
|
| 6371 | return Context.getDependentTemplateName(NNS,
|
| 6372 | GetIdentifierInfo(F, Record,
|
| 6373 | Idx));
|
| 6374 | return Context.getDependentTemplateName(NNS,
|
| 6375 | (OverloadedOperatorKind)Record[Idx++]);
|
| 6376 | }
|
| 6377 |
|
| 6378 | case TemplateName::SubstTemplateTemplateParm: {
|
| 6379 | TemplateTemplateParmDecl *param
|
| 6380 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx);
|
| 6381 | if (!param) return TemplateName();
|
| 6382 | TemplateName replacement = ReadTemplateName(F, Record, Idx);
|
| 6383 | return Context.getSubstTemplateTemplateParm(param, replacement);
|
| 6384 | }
|
| 6385 |
|
| 6386 | case TemplateName::SubstTemplateTemplateParmPack: {
|
| 6387 | TemplateTemplateParmDecl *Param
|
| 6388 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx);
|
| 6389 | if (!Param)
|
| 6390 | return TemplateName();
|
| 6391 |
|
| 6392 | TemplateArgument ArgPack = ReadTemplateArgument(F, Record, Idx);
|
| 6393 | if (ArgPack.getKind() != TemplateArgument::Pack)
|
| 6394 | return TemplateName();
|
| 6395 |
|
| 6396 | return Context.getSubstTemplateTemplateParmPack(Param, ArgPack);
|
| 6397 | }
|
| 6398 | }
|
| 6399 |
|
| 6400 | llvm_unreachable("Unhandled template name kind!");
|
| 6401 | }
|
| 6402 |
|
| 6403 | TemplateArgument
|
| 6404 | ASTReader::ReadTemplateArgument(ModuleFile &F,
|
| 6405 | const RecordData &Record, unsigned &Idx) {
|
| 6406 | TemplateArgument::ArgKind Kind = (TemplateArgument::ArgKind)Record[Idx++];
|
| 6407 | switch (Kind) {
|
| 6408 | case TemplateArgument::Null:
|
| 6409 | return TemplateArgument();
|
| 6410 | case TemplateArgument::Type:
|
| 6411 | return TemplateArgument(readType(F, Record, Idx));
|
| 6412 | case TemplateArgument::Declaration: {
|
| 6413 | ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx);
|
| 6414 | bool ForReferenceParam = Record[Idx++];
|
| 6415 | return TemplateArgument(D, ForReferenceParam);
|
| 6416 | }
|
| 6417 | case TemplateArgument::NullPtr:
|
| 6418 | return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true);
|
| 6419 | case TemplateArgument::Integral: {
|
| 6420 | llvm::APSInt Value = ReadAPSInt(Record, Idx);
|
| 6421 | QualType T = readType(F, Record, Idx);
|
| 6422 | return TemplateArgument(Context, Value, T);
|
| 6423 | }
|
| 6424 | case TemplateArgument::Template:
|
| 6425 | return TemplateArgument(ReadTemplateName(F, Record, Idx));
|
| 6426 | case TemplateArgument::TemplateExpansion: {
|
| 6427 | TemplateName Name = ReadTemplateName(F, Record, Idx);
|
| 6428 | llvm::Optional<unsigned> NumTemplateExpansions;
|
| 6429 | if (unsigned NumExpansions = Record[Idx++])
|
| 6430 | NumTemplateExpansions = NumExpansions - 1;
|
| 6431 | return TemplateArgument(Name, NumTemplateExpansions);
|
| 6432 | }
|
| 6433 | case TemplateArgument::Expression:
|
| 6434 | return TemplateArgument(ReadExpr(F));
|
| 6435 | case TemplateArgument::Pack: {
|
| 6436 | unsigned NumArgs = Record[Idx++];
|
| 6437 | TemplateArgument *Args = new (Context) TemplateArgument[NumArgs];
|
| 6438 | for (unsigned I = 0; I != NumArgs; ++I)
|
| 6439 | Args[I] = ReadTemplateArgument(F, Record, Idx);
|
| 6440 | return TemplateArgument(Args, NumArgs);
|
| 6441 | }
|
| 6442 | }
|
| 6443 |
|
| 6444 | llvm_unreachable("Unhandled template argument kind!");
|
| 6445 | }
|
| 6446 |
|
| 6447 | TemplateParameterList *
|
| 6448 | ASTReader::ReadTemplateParameterList(ModuleFile &F,
|
| 6449 | const RecordData &Record, unsigned &Idx) {
|
| 6450 | SourceLocation TemplateLoc = ReadSourceLocation(F, Record, Idx);
|
| 6451 | SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Idx);
|
| 6452 | SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Idx);
|
| 6453 |
|
| 6454 | unsigned NumParams = Record[Idx++];
|
| 6455 | SmallVector<NamedDecl *, 16> Params;
|
| 6456 | Params.reserve(NumParams);
|
| 6457 | while (NumParams--)
|
| 6458 | Params.push_back(ReadDeclAs<NamedDecl>(F, Record, Idx));
|
| 6459 |
|
| 6460 | TemplateParameterList* TemplateParams =
|
| 6461 | TemplateParameterList::Create(Context, TemplateLoc, LAngleLoc,
|
| 6462 | Params.data(), Params.size(), RAngleLoc);
|
| 6463 | return TemplateParams;
|
| 6464 | }
|
| 6465 |
|
| 6466 | void
|
| 6467 | ASTReader::
|
| 6468 | ReadTemplateArgumentList(SmallVector<TemplateArgument, 8> &TemplArgs,
|
| 6469 | ModuleFile &F, const RecordData &Record,
|
| 6470 | unsigned &Idx) {
|
| 6471 | unsigned NumTemplateArgs = Record[Idx++];
|
| 6472 | TemplArgs.reserve(NumTemplateArgs);
|
| 6473 | while (NumTemplateArgs--)
|
| 6474 | TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx));
|
| 6475 | }
|
| 6476 |
|
| 6477 | /// \brief Read a UnresolvedSet structure.
|
| 6478 | void ASTReader::ReadUnresolvedSet(ModuleFile &F, ASTUnresolvedSet &Set,
|
| 6479 | const RecordData &Record, unsigned &Idx) {
|
| 6480 | unsigned NumDecls = Record[Idx++];
|
| 6481 | Set.reserve(Context, NumDecls);
|
| 6482 | while (NumDecls--) {
|
| 6483 | NamedDecl *D = ReadDeclAs<NamedDecl>(F, Record, Idx);
|
| 6484 | AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
|
| 6485 | Set.addDecl(Context, D, AS);
|
| 6486 | }
|
| 6487 | }
|
| 6488 |
|
| 6489 | CXXBaseSpecifier
|
| 6490 | ASTReader::ReadCXXBaseSpecifier(ModuleFile &F,
|
| 6491 | const RecordData &Record, unsigned &Idx) {
|
| 6492 | bool isVirtual = static_cast<bool>(Record[Idx++]);
|
| 6493 | bool isBaseOfClass = static_cast<bool>(Record[Idx++]);
|
| 6494 | AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]);
|
| 6495 | bool inheritConstructors = static_cast<bool>(Record[Idx++]);
|
| 6496 | TypeSourceInfo *TInfo = GetTypeSourceInfo(F, Record, Idx);
|
| 6497 | SourceRange Range = ReadSourceRange(F, Record, Idx);
|
| 6498 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Idx);
|
| 6499 | CXXBaseSpecifier Result(Range, isVirtual, isBaseOfClass, AS, TInfo,
|
| 6500 | EllipsisLoc);
|
| 6501 | Result.setInheritConstructors(inheritConstructors);
|
| 6502 | return Result;
|
| 6503 | }
|
| 6504 |
|
| 6505 | std::pair<CXXCtorInitializer **, unsigned>
|
| 6506 | ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record,
|
| 6507 | unsigned &Idx) {
|
| 6508 | CXXCtorInitializer **CtorInitializers = 0;
|
| 6509 | unsigned NumInitializers = Record[Idx++];
|
| 6510 | if (NumInitializers) {
|
| 6511 | CtorInitializers
|
| 6512 | = new (Context) CXXCtorInitializer*[NumInitializers];
|
| 6513 | for (unsigned i=0; i != NumInitializers; ++i) {
|
| 6514 | TypeSourceInfo *TInfo = 0;
|
| 6515 | bool IsBaseVirtual = false;
|
| 6516 | FieldDecl *Member = 0;
|
| 6517 | IndirectFieldDecl *IndirectMember = 0;
|
| 6518 |
|
| 6519 | CtorInitializerType Type = (CtorInitializerType)Record[Idx++];
|
| 6520 | switch (Type) {
|
| 6521 | case CTOR_INITIALIZER_BASE:
|
| 6522 | TInfo = GetTypeSourceInfo(F, Record, Idx);
|
| 6523 | IsBaseVirtual = Record[Idx++];
|
| 6524 | break;
|
| 6525 |
|
| 6526 | case CTOR_INITIALIZER_DELEGATING:
|
| 6527 | TInfo = GetTypeSourceInfo(F, Record, Idx);
|
| 6528 | break;
|
| 6529 |
|
| 6530 | case CTOR_INITIALIZER_MEMBER:
|
| 6531 | Member = ReadDeclAs<FieldDecl>(F, Record, Idx);
|
| 6532 | break;
|
| 6533 |
|
| 6534 | case CTOR_INITIALIZER_INDIRECT_MEMBER:
|
| 6535 | IndirectMember = ReadDeclAs<IndirectFieldDecl>(F, Record, Idx);
|
| 6536 | break;
|
| 6537 | }
|
| 6538 |
|
| 6539 | SourceLocation MemberOrEllipsisLoc = ReadSourceLocation(F, Record, Idx);
|
| 6540 | Expr *Init = ReadExpr(F);
|
| 6541 | SourceLocation LParenLoc = ReadSourceLocation(F, Record, Idx);
|
| 6542 | SourceLocation RParenLoc = ReadSourceLocation(F, Record, Idx);
|
| 6543 | bool IsWritten = Record[Idx++];
|
| 6544 | unsigned SourceOrderOrNumArrayIndices;
|
| 6545 | SmallVector<VarDecl *, 8> Indices;
|
| 6546 | if (IsWritten) {
|
| 6547 | SourceOrderOrNumArrayIndices = Record[Idx++];
|
| 6548 | } else {
|
| 6549 | SourceOrderOrNumArrayIndices = Record[Idx++];
|
| 6550 | Indices.reserve(SourceOrderOrNumArrayIndices);
|
| 6551 | for (unsigned i=0; i != SourceOrderOrNumArrayIndices; ++i)
|
| 6552 | Indices.push_back(ReadDeclAs<VarDecl>(F, Record, Idx));
|
| 6553 | }
|
| 6554 |
|
| 6555 | CXXCtorInitializer *BOMInit;
|
| 6556 | if (Type == CTOR_INITIALIZER_BASE) {
|
| 6557 | BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, IsBaseVirtual,
|
| 6558 | LParenLoc, Init, RParenLoc,
|
| 6559 | MemberOrEllipsisLoc);
|
| 6560 | } else if (Type == CTOR_INITIALIZER_DELEGATING) {
|
| 6561 | BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, LParenLoc,
|
| 6562 | Init, RParenLoc);
|
| 6563 | } else if (IsWritten) {
|
| 6564 | if (Member)
|
| 6565 | BOMInit = new (Context) CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc,
|
| 6566 | LParenLoc, Init, RParenLoc);
|
| 6567 | else
|
| 6568 | BOMInit = new (Context) CXXCtorInitializer(Context, IndirectMember,
|
| 6569 | MemberOrEllipsisLoc, LParenLoc,
|
| 6570 | Init, RParenLoc);
|
| 6571 | } else {
|
| 6572 | BOMInit = CXXCtorInitializer::Create(Context, Member, MemberOrEllipsisLoc,
|
| 6573 | LParenLoc, Init, RParenLoc,
|
| 6574 | Indices.data(), Indices.size());
|
| 6575 | }
|
| 6576 |
|
| 6577 | if (IsWritten)
|
| 6578 | BOMInit->setSourceOrder(SourceOrderOrNumArrayIndices);
|
| 6579 | CtorInitializers[i] = BOMInit;
|
| 6580 | }
|
| 6581 | }
|
| 6582 |
|
| 6583 | return std::make_pair(CtorInitializers, NumInitializers);
|
| 6584 | }
|
| 6585 |
|
| 6586 | NestedNameSpecifier *
|
| 6587 | ASTReader::ReadNestedNameSpecifier(ModuleFile &F,
|
| 6588 | const RecordData &Record, unsigned &Idx) {
|
| 6589 | unsigned N = Record[Idx++];
|
| 6590 | NestedNameSpecifier *NNS = 0, *Prev = 0;
|
| 6591 | for (unsigned I = 0; I != N; ++I) {
|
| 6592 | NestedNameSpecifier::SpecifierKind Kind
|
| 6593 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
|
| 6594 | switch (Kind) {
|
| 6595 | case NestedNameSpecifier::Identifier: {
|
| 6596 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx);
|
| 6597 | NNS = NestedNameSpecifier::Create(Context, Prev, II);
|
| 6598 | break;
|
| 6599 | }
|
| 6600 |
|
| 6601 | case NestedNameSpecifier::Namespace: {
|
| 6602 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx);
|
| 6603 | NNS = NestedNameSpecifier::Create(Context, Prev, NS);
|
| 6604 | break;
|
| 6605 | }
|
| 6606 |
|
| 6607 | case NestedNameSpecifier::NamespaceAlias: {
|
| 6608 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx);
|
| 6609 | NNS = NestedNameSpecifier::Create(Context, Prev, Alias);
|
| 6610 | break;
|
| 6611 | }
|
| 6612 |
|
| 6613 | case NestedNameSpecifier::TypeSpec:
|
| 6614 | case NestedNameSpecifier::TypeSpecWithTemplate: {
|
| 6615 | const Type *T = readType(F, Record, Idx).getTypePtrOrNull();
|
| 6616 | if (!T)
|
| 6617 | return 0;
|
| 6618 |
|
| 6619 | bool Template = Record[Idx++];
|
| 6620 | NNS = NestedNameSpecifier::Create(Context, Prev, Template, T);
|
| 6621 | break;
|
| 6622 | }
|
| 6623 |
|
| 6624 | case NestedNameSpecifier::Global: {
|
| 6625 | NNS = NestedNameSpecifier::GlobalSpecifier(Context);
|
| 6626 | // No associated value, and there can't be a prefix.
|
| 6627 | break;
|
| 6628 | }
|
| 6629 | }
|
| 6630 | Prev = NNS;
|
| 6631 | }
|
| 6632 | return NNS;
|
| 6633 | }
|
| 6634 |
|
| 6635 | NestedNameSpecifierLoc
|
| 6636 | ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record,
|
| 6637 | unsigned &Idx) {
|
| 6638 | unsigned N = Record[Idx++];
|
| 6639 | NestedNameSpecifierLocBuilder Builder;
|
| 6640 | for (unsigned I = 0; I != N; ++I) {
|
| 6641 | NestedNameSpecifier::SpecifierKind Kind
|
| 6642 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
|
| 6643 | switch (Kind) {
|
| 6644 | case NestedNameSpecifier::Identifier: {
|
| 6645 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx);
|
| 6646 | SourceRange Range = ReadSourceRange(F, Record, Idx);
|
| 6647 | Builder.Extend(Context, II, Range.getBegin(), Range.getEnd());
|
| 6648 | break;
|
| 6649 | }
|
| 6650 |
|
| 6651 | case NestedNameSpecifier::Namespace: {
|
| 6652 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx);
|
| 6653 | SourceRange Range = ReadSourceRange(F, Record, Idx);
|
| 6654 | Builder.Extend(Context, NS, Range.getBegin(), Range.getEnd());
|
| 6655 | break;
|
| 6656 | }
|
| 6657 |
|
| 6658 | case NestedNameSpecifier::NamespaceAlias: {
|
| 6659 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx);
|
| 6660 | SourceRange Range = ReadSourceRange(F, Record, Idx);
|
| 6661 | Builder.Extend(Context, Alias, Range.getBegin(), Range.getEnd());
|
| 6662 | break;
|
| 6663 | }
|
| 6664 |
|
| 6665 | case NestedNameSpecifier::TypeSpec:
|
| 6666 | case NestedNameSpecifier::TypeSpecWithTemplate: {
|
| 6667 | bool Template = Record[Idx++];
|
| 6668 | TypeSourceInfo *T = GetTypeSourceInfo(F, Record, Idx);
|
| 6669 | if (!T)
|
| 6670 | return NestedNameSpecifierLoc();
|
| 6671 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx);
|
| 6672 |
|
| 6673 | // FIXME: 'template' keyword location not saved anywhere, so we fake it.
|
| 6674 | Builder.Extend(Context,
|
| 6675 | Template? T->getTypeLoc().getBeginLoc() : SourceLocation(),
|
| 6676 | T->getTypeLoc(), ColonColonLoc);
|
| 6677 | break;
|
| 6678 | }
|
| 6679 |
|
| 6680 | case NestedNameSpecifier::Global: {
|
| 6681 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx);
|
| 6682 | Builder.MakeGlobal(Context, ColonColonLoc);
|
| 6683 | break;
|
| 6684 | }
|
| 6685 | }
|
| 6686 | }
|
| 6687 |
|
| 6688 | return Builder.getWithLocInContext(Context);
|
| 6689 | }
|
| 6690 |
|
| 6691 | SourceRange
|
| 6692 | ASTReader::ReadSourceRange(ModuleFile &F, const RecordData &Record,
|
| 6693 | unsigned &Idx) {
|
| 6694 | SourceLocation beg = ReadSourceLocation(F, Record, Idx);
|
| 6695 | SourceLocation end = ReadSourceLocation(F, Record, Idx);
|
| 6696 | return SourceRange(beg, end);
|
| 6697 | }
|
| 6698 |
|
| 6699 | /// \brief Read an integral value
|
| 6700 | llvm::APInt ASTReader::ReadAPInt(const RecordData &Record, unsigned &Idx) {
|
| 6701 | unsigned BitWidth = Record[Idx++];
|
| 6702 | unsigned NumWords = llvm::APInt::getNumWords(BitWidth);
|
| 6703 | llvm::APInt Result(BitWidth, NumWords, &Record[Idx]);
|
| 6704 | Idx += NumWords;
|
| 6705 | return Result;
|
| 6706 | }
|
| 6707 |
|
| 6708 | /// \brief Read a signed integral value
|
| 6709 | llvm::APSInt ASTReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) {
|
| 6710 | bool isUnsigned = Record[Idx++];
|
| 6711 | return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned);
|
| 6712 | }
|
| 6713 |
|
| 6714 | /// \brief Read a floating-point value
|
| 6715 | llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, unsigned &Idx) {
|
| 6716 | return llvm::APFloat(ReadAPInt(Record, Idx));
|
| 6717 | }
|
| 6718 |
|
| 6719 | // \brief Read a string
|
| 6720 | std::string ASTReader::ReadString(const RecordData &Record, unsigned &Idx) {
|
| 6721 | unsigned Len = Record[Idx++];
|
| 6722 | std::string Result(Record.data() + Idx, Record.data() + Idx + Len);
|
| 6723 | Idx += Len;
|
| 6724 | return Result;
|
| 6725 | }
|
| 6726 |
|
| 6727 | VersionTuple ASTReader::ReadVersionTuple(const RecordData &Record,
|
| 6728 | unsigned &Idx) {
|
| 6729 | unsigned Major = Record[Idx++];
|
| 6730 | unsigned Minor = Record[Idx++];
|
| 6731 | unsigned Subminor = Record[Idx++];
|
| 6732 | if (Minor == 0)
|
| 6733 | return VersionTuple(Major);
|
| 6734 | if (Subminor == 0)
|
| 6735 | return VersionTuple(Major, Minor - 1);
|
| 6736 | return VersionTuple(Major, Minor - 1, Subminor - 1);
|
| 6737 | }
|
| 6738 |
|
| 6739 | CXXTemporary *ASTReader::ReadCXXTemporary(ModuleFile &F,
|
| 6740 | const RecordData &Record,
|
| 6741 | unsigned &Idx) {
|
| 6742 | CXXDestructorDecl *Decl = ReadDeclAs<CXXDestructorDecl>(F, Record, Idx);
|
| 6743 | return CXXTemporary::Create(Context, Decl);
|
| 6744 | }
|
| 6745 |
|
| 6746 | DiagnosticBuilder ASTReader::Diag(unsigned DiagID) {
|
| 6747 | return Diag(SourceLocation(), DiagID);
|
| 6748 | }
|
| 6749 |
|
| 6750 | DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) {
|
| 6751 | return Diags.Report(Loc, DiagID);
|
| 6752 | }
|
| 6753 |
|
| 6754 | /// \brief Retrieve the identifier table associated with the
|
| 6755 | /// preprocessor.
|
| 6756 | IdentifierTable &ASTReader::getIdentifierTable() {
|
| 6757 | return PP.getIdentifierTable();
|
| 6758 | }
|
| 6759 |
|
| 6760 | /// \brief Record that the given ID maps to the given switch-case
|
| 6761 | /// statement.
|
| 6762 | void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) {
|
| 6763 | assert((*CurrSwitchCaseStmts)[ID] == 0 &&
|
| 6764 | "Already have a SwitchCase with this ID");
|
| 6765 | (*CurrSwitchCaseStmts)[ID] = SC;
|
| 6766 | }
|
| 6767 |
|
| 6768 | /// \brief Retrieve the switch-case statement with the given ID.
|
| 6769 | SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) {
|
| 6770 | assert((*CurrSwitchCaseStmts)[ID] != 0 && "No SwitchCase with this ID");
|
| 6771 | return (*CurrSwitchCaseStmts)[ID];
|
| 6772 | }
|
| 6773 |
|
| 6774 | void ASTReader::ClearSwitchCaseIDs() {
|
| 6775 | CurrSwitchCaseStmts->clear();
|
| 6776 | }
|
| 6777 |
|
| 6778 | void ASTReader::ReadComments() {
|
| 6779 | std::vector<RawComment *> Comments;
|
| 6780 | for (SmallVectorImpl<std::pair<llvm::BitstreamCursor,
|
| 6781 | serialization::ModuleFile *> >::iterator
|
| 6782 | I = CommentsCursors.begin(),
|
| 6783 | E = CommentsCursors.end();
|
| 6784 | I != E; ++I) {
|
| 6785 | llvm::BitstreamCursor &Cursor = I->first;
|
| 6786 | serialization::ModuleFile &F = *I->second;
|
| 6787 | SavedStreamPosition SavedPosition(Cursor);
|
| 6788 |
|
| 6789 | RecordData Record;
|
| 6790 | while (true) {
|
| 6791 | unsigned Code = Cursor.ReadCode();
|
| 6792 | if (Code == llvm::bitc::END_BLOCK)
|
| 6793 | break;
|
| 6794 |
|
| 6795 | if (Code == llvm::bitc::ENTER_SUBBLOCK) {
|
| 6796 | // No known subblocks, always skip them.
|
| 6797 | Cursor.ReadSubBlockID();
|
| 6798 | if (Cursor.SkipBlock()) {
|
| 6799 | Error("malformed block record in AST file");
|
| 6800 | return;
|
| 6801 | }
|
| 6802 | continue;
|
| 6803 | }
|
| 6804 |
|
| 6805 | if (Code == llvm::bitc::DEFINE_ABBREV) {
|
| 6806 | Cursor.ReadAbbrevRecord();
|
| 6807 | continue;
|
| 6808 | }
|
| 6809 |
|
| 6810 | // Read a record.
|
| 6811 | Record.clear();
|
| 6812 | switch ((CommentRecordTypes) Cursor.ReadRecord(Code, Record)) {
|
| 6813 | case COMMENTS_RAW_COMMENT: {
|
| 6814 | unsigned Idx = 0;
|
| 6815 | SourceRange SR = ReadSourceRange(F, Record, Idx);
|
| 6816 | RawComment::CommentKind Kind =
|
| 6817 | (RawComment::CommentKind) Record[Idx++];
|
| 6818 | bool IsTrailingComment = Record[Idx++];
|
| 6819 | bool IsAlmostTrailingComment = Record[Idx++];
|
| 6820 | Comments.push_back(new (Context) RawComment(SR, Kind,
|
| 6821 | IsTrailingComment,
|
| 6822 | IsAlmostTrailingComment));
|
| 6823 | break;
|
| 6824 | }
|
| 6825 | }
|
| 6826 | }
|
| 6827 | }
|
| 6828 | Context.Comments.addCommentsToFront(Comments);
|
| 6829 | }
|
| 6830 |
|
| 6831 | void ASTReader::finishPendingActions() {
|
| 6832 | while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty() ||
|
| 6833 | !PendingMacroIDs.empty()) {
|
| 6834 | // If any identifiers with corresponding top-level declarations have
|
| 6835 | // been loaded, load those declarations now.
|
| 6836 | while (!PendingIdentifierInfos.empty()) {
|
| 6837 | SetGloballyVisibleDecls(PendingIdentifierInfos.front().II,
|
| 6838 | PendingIdentifierInfos.front().DeclIDs, true);
|
| 6839 | PendingIdentifierInfos.pop_front();
|
| 6840 | }
|
| 6841 |
|
| 6842 | // Load pending declaration chains.
|
| 6843 | for (unsigned I = 0; I != PendingDeclChains.size(); ++I) {
|
| 6844 | loadPendingDeclChain(PendingDeclChains[I]);
|
| 6845 | PendingDeclChainsKnown.erase(PendingDeclChains[I]);
|
| 6846 | }
|
| 6847 | PendingDeclChains.clear();
|
| 6848 |
|
| 6849 | // Load any pending macro definitions.
|
| 6850 | for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) {
|
| 6851 | // FIXME: std::move here
|
| 6852 | SmallVector<MacroID, 2> GlobalIDs = PendingMacroIDs.begin()[I].second;
|
| 6853 | MacroInfo *Hint = 0;
|
| 6854 | for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs;
|
| 6855 | ++IDIdx) {
|
| 6856 | Hint = getMacro(GlobalIDs[IDIdx], Hint);
|
| 6857 | }
|
| 6858 | }
|
| 6859 | PendingMacroIDs.clear();
|
| 6860 | }
|
| 6861 |
|
| 6862 | // If we deserialized any C++ or Objective-C class definitions, any
|
| 6863 | // Objective-C protocol definitions, or any redeclarable templates, make sure
|
| 6864 | // that all redeclarations point to the definitions. Note that this can only
|
| 6865 | // happen now, after the redeclaration chains have been fully wired.
|
| 6866 | for (llvm::SmallPtrSet<Decl *, 4>::iterator D = PendingDefinitions.begin(),
|
| 6867 | DEnd = PendingDefinitions.end();
|
| 6868 | D != DEnd; ++D) {
|
| 6869 | if (TagDecl *TD = dyn_cast<TagDecl>(*D)) {
|
| 6870 | if (const TagType *TagT = dyn_cast<TagType>(TD->TypeForDecl)) {
|
| 6871 | // Make sure that the TagType points at the definition.
|
| 6872 | const_cast<TagType*>(TagT)->decl = TD;
|
| 6873 | }
|
| 6874 |
|
| 6875 | if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(*D)) {
|
| 6876 | for (CXXRecordDecl::redecl_iterator R = RD->redecls_begin(),
|
| 6877 | REnd = RD->redecls_end();
|
| 6878 | R != REnd; ++R)
|
| 6879 | cast<CXXRecordDecl>(*R)->DefinitionData = RD->DefinitionData;
|
| 6880 |
|
| 6881 | }
|
| 6882 |
|
| 6883 | continue;
|
| 6884 | }
|
| 6885 |
|
| 6886 | if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(*D)) {
|
| 6887 | // Make sure that the ObjCInterfaceType points at the definition.
|
| 6888 | const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl))
|
| 6889 | ->Decl = ID;
|
| 6890 |
|
| 6891 | for (ObjCInterfaceDecl::redecl_iterator R = ID->redecls_begin(),
|
| 6892 | REnd = ID->redecls_end();
|
| 6893 | R != REnd; ++R)
|
| 6894 | R->Data = ID->Data;
|
| 6895 |
|
| 6896 | continue;
|
| 6897 | }
|
| 6898 |
|
| 6899 | if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(*D)) {
|
| 6900 | for (ObjCProtocolDecl::redecl_iterator R = PD->redecls_begin(),
|
| 6901 | REnd = PD->redecls_end();
|
| 6902 | R != REnd; ++R)
|
| 6903 | R->Data = PD->Data;
|
| 6904 |
|
| 6905 | continue;
|
| 6906 | }
|
| 6907 |
|
| 6908 | RedeclarableTemplateDecl *RTD
|
| 6909 | = cast<RedeclarableTemplateDecl>(*D)->getCanonicalDecl();
|
| 6910 | for (RedeclarableTemplateDecl::redecl_iterator R = RTD->redecls_begin(),
|
| 6911 | REnd = RTD->redecls_end();
|
| 6912 | R != REnd; ++R)
|
| 6913 | R->Common = RTD->Common;
|
| 6914 | }
|
| 6915 | PendingDefinitions.clear();
|
| 6916 |
|
| 6917 | // Load the bodies of any functions or methods we've encountered. We do
|
| 6918 | // this now (delayed) so that we can be sure that the declaration chains
|
| 6919 | // have been fully wired up.
|
| 6920 | for (PendingBodiesMap::iterator PB = PendingBodies.begin(),
|
| 6921 | PBEnd = PendingBodies.end();
|
| 6922 | PB != PBEnd; ++PB) {
|
| 6923 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) {
|
| 6924 | // FIXME: Check for =delete/=default?
|
| 6925 | // FIXME: Complain about ODR violations here?
|
| 6926 | if (!getContext().getLangOpts().Modules || !FD->hasBody())
|
| 6927 | FD->setLazyBody(PB->second);
|
| 6928 | continue;
|
| 6929 | }
|
| 6930 |
|
| 6931 | ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first);
|
| 6932 | if (!getContext().getLangOpts().Modules || !MD->hasBody())
|
| 6933 | MD->setLazyBody(PB->second);
|
| 6934 | }
|
| 6935 | PendingBodies.clear();
|
| 6936 | }
|
| 6937 |
|
| 6938 | void ASTReader::FinishedDeserializing() {
|
| 6939 | assert(NumCurrentElementsDeserializing &&
|
| 6940 | "FinishedDeserializing not paired with StartedDeserializing");
|
| 6941 | if (NumCurrentElementsDeserializing == 1) {
|
| 6942 | // We decrease NumCurrentElementsDeserializing only after pending actions
|
| 6943 | // are finished, to avoid recursively re-calling finishPendingActions().
|
| 6944 | finishPendingActions();
|
| 6945 | }
|
| 6946 | --NumCurrentElementsDeserializing;
|
| 6947 |
|
| 6948 | if (NumCurrentElementsDeserializing == 0 &&
|
| 6949 | Consumer && !PassingDeclsToConsumer) {
|
| 6950 | // Guard variable to avoid recursively redoing the process of passing
|
| 6951 | // decls to consumer.
|
| 6952 | SaveAndRestore<bool> GuardPassingDeclsToConsumer(PassingDeclsToConsumer,
|
| 6953 | true);
|
| 6954 |
|
| 6955 | while (!InterestingDecls.empty()) {
|
| 6956 | // We are not in recursive loading, so it's safe to pass the "interesting"
|
| 6957 | // decls to the consumer.
|
| 6958 | Decl *D = InterestingDecls.front();
|
| 6959 | InterestingDecls.pop_front();
|
| 6960 | PassInterestingDeclToConsumer(D);
|
| 6961 | }
|
| 6962 | }
|
| 6963 | }
|
| 6964 |
|
| 6965 | ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context,
|
| 6966 | StringRef isysroot, bool DisableValidation,
|
| 6967 | bool AllowASTWithCompilerErrors)
|
| 6968 | : Listener(new PCHValidator(PP, *this)), DeserializationListener(0),
|
| 6969 | SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()),
|
| 6970 | Diags(PP.getDiagnostics()), SemaObj(0), PP(PP), Context(Context),
|
| 6971 | Consumer(0), ModuleMgr(PP.getFileManager()),
|
| 6972 | isysroot(isysroot), DisableValidation(DisableValidation),
|
| 6973 | AllowASTWithCompilerErrors(AllowASTWithCompilerErrors),
|
| 6974 | CurrentGeneration(0), CurrSwitchCaseStmts(&SwitchCaseStmts),
|
| 6975 | NumSLocEntriesRead(0), TotalNumSLocEntries(0),
|
| 6976 | NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0),
|
| 6977 | TotalNumMacros(0), NumSelectorsRead(0), NumMethodPoolEntriesRead(0),
|
| 6978 | NumMethodPoolMisses(0), TotalNumMethodPoolEntries(0),
|
| 6979 | NumLexicalDeclContextsRead(0), TotalLexicalDeclContexts(0),
|
| 6980 | NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0),
|
| 6981 | TotalModulesSizeInBits(0), NumCurrentElementsDeserializing(0),
|
| 6982 | PassingDeclsToConsumer(false),
|
| 6983 | NumCXXBaseSpecifiersLoaded(0)
|
| 6984 | {
|
| 6985 | SourceMgr.setExternalSLocEntrySource(this);
|
| 6986 | }
|
| 6987 |
|
| 6988 | ASTReader::~ASTReader() {
|
| 6989 | for (DeclContextVisibleUpdatesPending::iterator
|
| 6990 | I = PendingVisibleUpdates.begin(),
|
| 6991 | E = PendingVisibleUpdates.end();
|
| 6992 | I != E; ++I) {
|
| 6993 | for (DeclContextVisibleUpdates::iterator J = I->second.begin(),
|
| 6994 | F = I->second.end();
|
| 6995 | J != F; ++J)
|
| 6996 | delete J->first;
|
| 6997 | }
|
| 6998 | }
|