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      1 //===--- Module.cpp - Module description ------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 //  This file implements the Module class, which describes a module that has
     11 //  been loaded from an AST file.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 #include "clang/Serialization/Module.h"
     15 #include "llvm/Support/raw_ostream.h"
     16 #include "llvm/Support/MemoryBuffer.h"
     17 #include "ASTReaderInternals.h"
     18 
     19 using namespace clang;
     20 using namespace serialization;
     21 using namespace reader;
     22 
     23 Module::Module(ModuleKind Kind)
     24   : Kind(Kind), DirectlyImported(false), SizeInBits(0),
     25     LocalNumSLocEntries(0), SLocEntryBaseID(0),
     26     SLocEntryBaseOffset(0), SLocEntryOffsets(0),
     27     SLocFileOffsets(0), LocalNumIdentifiers(0),
     28     IdentifierOffsets(0), BaseIdentifierID(0), IdentifierTableData(0),
     29     IdentifierLookupTable(0), BasePreprocessedEntityID(0),
     30     PreprocessedEntityOffsets(0), NumPreprocessedEntities(0),
     31     LocalNumHeaderFileInfos(0),
     32     HeaderFileInfoTableData(0), HeaderFileInfoTable(0),
     33     HeaderFileFrameworkStrings(0),
     34     LocalNumSelectors(0), SelectorOffsets(0), BaseSelectorID(0),
     35     SelectorLookupTableData(0), SelectorLookupTable(0), LocalNumDecls(0),
     36     DeclOffsets(0), BaseDeclID(0),
     37     LocalNumCXXBaseSpecifiers(0), CXXBaseSpecifiersOffsets(0),
     38     LocalNumTypes(0), TypeOffsets(0), BaseTypeIndex(0), StatCache(0)
     39 {}
     40 
     41 Module::~Module() {
     42   for (DeclContextInfosMap::iterator I = DeclContextInfos.begin(),
     43        E = DeclContextInfos.end();
     44        I != E; ++I) {
     45     if (I->second.NameLookupTableData)
     46       delete static_cast<ASTDeclContextNameLookupTable*>(
     47                                                  I->second.NameLookupTableData);
     48   }
     49 
     50   delete static_cast<ASTIdentifierLookupTable *>(IdentifierLookupTable);
     51   delete static_cast<HeaderFileInfoLookupTable *>(HeaderFileInfoTable);
     52   delete static_cast<ASTSelectorLookupTable *>(SelectorLookupTable);
     53 }
     54 
     55 template<typename Key, typename Offset, unsigned InitialCapacity>
     56 static void
     57 dumpLocalRemap(StringRef Name,
     58                const ContinuousRangeMap<Key, Offset, InitialCapacity> &Map) {
     59   if (Map.begin() == Map.end())
     60     return;
     61 
     62   typedef ContinuousRangeMap<Key, Offset, InitialCapacity> MapType;
     63   llvm::errs() << "  " << Name << ":\n";
     64   for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end();
     65        I != IEnd; ++I) {
     66     llvm::errs() << "    " << I->first << " -> " << I->second << "\n";
     67   }
     68 }
     69 
     70 void Module::dump() {
     71   llvm::errs() << "\nModule: " << FileName << "\n";
     72   if (!Imports.empty()) {
     73     llvm::errs() << "  Imports: ";
     74     for (unsigned I = 0, N = Imports.size(); I != N; ++I) {
     75       if (I)
     76         llvm::errs() << ", ";
     77       llvm::errs() << Imports[I]->FileName;
     78     }
     79     llvm::errs() << "\n";
     80   }
     81 
     82   // Remapping tables.
     83   llvm::errs() << "  Base source location offset: " << SLocEntryBaseOffset
     84                << '\n';
     85   dumpLocalRemap("Source location offset local -> global map", SLocRemap);
     86 
     87   llvm::errs() << "  Base identifier ID: " << BaseIdentifierID << '\n'
     88                << "  Number of identifiers: " << LocalNumIdentifiers << '\n';
     89   dumpLocalRemap("Identifier ID local -> global map", IdentifierRemap);
     90 
     91   llvm::errs() << "  Base selector ID: " << BaseSelectorID << '\n'
     92                << "  Number of selectors: " << LocalNumSelectors << '\n';
     93   dumpLocalRemap("Selector ID local -> global map", SelectorRemap);
     94 
     95   llvm::errs() << "  Base preprocessed entity ID: " << BasePreprocessedEntityID
     96                << '\n'
     97                << "  Number of preprocessed entities: "
     98                << NumPreprocessedEntities << '\n';
     99   dumpLocalRemap("Preprocessed entity ID local -> global map",
    100                  PreprocessedEntityRemap);
    101 
    102   llvm::errs() << "  Base type index: " << BaseTypeIndex << '\n'
    103                << "  Number of types: " << LocalNumTypes << '\n';
    104   dumpLocalRemap("Type index local -> global map", TypeRemap);
    105 
    106   llvm::errs() << "  Base decl ID: " << BaseDeclID << '\n'
    107                << "  Number of decls: " << LocalNumDecls << '\n';
    108   dumpLocalRemap("Decl ID local -> global map", DeclRemap);
    109 }
    110