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 ModuleFile::ModuleFile(ModuleKind Kind, unsigned Generation)
24   : Kind(Kind), DirectlyImported(false), Generation(Generation), 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), LocalNumSubmodules(0), BaseSubmoduleID(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     FileSortedDecls(0), RedeclarationsMap(0), LocalNumRedeclarationsInMap(0),
39     ObjCCategoriesMap(0), LocalNumObjCCategoriesInMap(0),
40     LocalNumTypes(0), TypeOffsets(0), BaseTypeIndex(0), StatCache(0)
41 {}
42 
43 ModuleFile::~ModuleFile() {
44   for (DeclContextInfosMap::iterator I = DeclContextInfos.begin(),
45        E = DeclContextInfos.end();
46        I != E; ++I) {
47     if (I->second.NameLookupTableData)
48       delete static_cast<ASTDeclContextNameLookupTable*>(
49                                                  I->second.NameLookupTableData);
50   }
51 
52   delete static_cast<ASTIdentifierLookupTable *>(IdentifierLookupTable);
53   delete static_cast<HeaderFileInfoLookupTable *>(HeaderFileInfoTable);
54   delete static_cast<ASTSelectorLookupTable *>(SelectorLookupTable);
55 }
56 
57 template<typename Key, typename Offset, unsigned InitialCapacity>
58 static void
59 dumpLocalRemap(StringRef Name,
60                const ContinuousRangeMap<Key, Offset, InitialCapacity> &Map) {
61   if (Map.begin() == Map.end())
62     return;
63 
64   typedef ContinuousRangeMap<Key, Offset, InitialCapacity> MapType;
65   llvm::errs() << "  " << Name << ":\n";
66   for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end();
67        I != IEnd; ++I) {
68     llvm::errs() << "    " << I->first << " -> " << I->second << "\n";
69   }
70 }
71 
72 void ModuleFile::dump() {
73   llvm::errs() << "\nModule: " << FileName << "\n";
74   if (!Imports.empty()) {
75     llvm::errs() << "  Imports: ";
76     for (unsigned I = 0, N = Imports.size(); I != N; ++I) {
77       if (I)
78         llvm::errs() << ", ";
79       llvm::errs() << Imports[I]->FileName;
80     }
81     llvm::errs() << "\n";
82   }
83 
84   // Remapping tables.
85   llvm::errs() << "  Base source location offset: " << SLocEntryBaseOffset
86                << '\n';
87   dumpLocalRemap("Source location offset local -> global map", SLocRemap);
88 
89   llvm::errs() << "  Base identifier ID: " << BaseIdentifierID << '\n'
90                << "  Number of identifiers: " << LocalNumIdentifiers << '\n';
91   dumpLocalRemap("Identifier ID local -> global map", IdentifierRemap);
92 
93   llvm::errs() << "  Base submodule ID: " << BaseSubmoduleID << '\n'
94                << "  Number of submodules: " << LocalNumSubmodules << '\n';
95   dumpLocalRemap("Submodule ID local -> global map", SubmoduleRemap);
96 
97   llvm::errs() << "  Base selector ID: " << BaseSelectorID << '\n'
98                << "  Number of selectors: " << LocalNumSelectors << '\n';
99   dumpLocalRemap("Selector ID local -> global map", SelectorRemap);
100 
101   llvm::errs() << "  Base preprocessed entity ID: " << BasePreprocessedEntityID
102                << '\n'
103                << "  Number of preprocessed entities: "
104                << NumPreprocessedEntities << '\n';
105   dumpLocalRemap("Preprocessed entity ID local -> global map",
106                  PreprocessedEntityRemap);
107 
108   llvm::errs() << "  Base type index: " << BaseTypeIndex << '\n'
109                << "  Number of types: " << LocalNumTypes << '\n';
110   dumpLocalRemap("Type index local -> global map", TypeRemap);
111 
112   llvm::errs() << "  Base decl ID: " << BaseDeclID << '\n'
113                << "  Number of decls: " << LocalNumDecls << '\n';
114   dumpLocalRemap("Decl ID local -> global map", DeclRemap);
115 }
116