contrib/llvm/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.h

   1 //===-- DWARFASTParserClang.h -----------------------------------*- 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 #ifndef SymbolFileDWARF_DWARFASTParserClang_h_
  11 #define SymbolFileDWARF_DWARFASTParserClang_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 // Other libraries and framework includes
  16 #include "llvm/ADT/DenseMap.h"
  17 #include "llvm/ADT/SmallPtrSet.h"
  18 #include "llvm/ADT/SmallVector.h"
  19 #include "clang/AST/CharUnits.h"
  20
  21 // Project includes
  22 #include "lldb/Core/ClangForward.h"
  23 #include "lldb/Core/PluginInterface.h"
  24 #include "lldb/Symbol/ClangASTContext.h"
  25 #include "DWARFDefines.h"
  26 #include "DWARFASTParser.h"
  27
  28 class DWARFDebugInfoEntry;
  29 class DWARFDIECollection;
  30
  31 class DWARFASTParserClang : public DWARFASTParser
  32 {
  33 public:
  34     DWARFASTParserClang (lldb_private::ClangASTContext &ast);
  35
  36     ~DWARFASTParserClang() override;
  37
  38     lldb::TypeSP
  39     ParseTypeFromDWARF (const lldb_private::SymbolContext& sc,
  40                         const DWARFDIE &die,
  41                         lldb_private::Log *log,
  42                         bool *type_is_new_ptr) override;
  43
  44
  45     lldb_private::Function *
  46     ParseFunctionFromDWARF (const lldb_private::SymbolContext& sc,
  47                             const DWARFDIE &die) override;
  48
  49     bool
  50     CanCompleteType (const lldb_private::CompilerType &compiler_type) override;
  51
  52     bool
  53     CompleteType (const lldb_private::CompilerType &compiler_type) override;
  54
  55     bool
  56     CompleteTypeFromDWARF (const DWARFDIE &die,
  57                            lldb_private::Type *type,
  58                            lldb_private::CompilerType &compiler_type) override;
  59
  60     lldb_private::CompilerDecl
  61     GetDeclForUIDFromDWARF (const DWARFDIE &die) override;
  62
  63     std::vector<DWARFDIE>
  64     GetDIEForDeclContext (lldb_private::CompilerDeclContext decl_context) override;
  65
  66     lldb_private::CompilerDeclContext
  67     GetDeclContextForUIDFromDWARF (const DWARFDIE &die) override;
  68
  69     lldb_private::CompilerDeclContext
  70     GetDeclContextContainingUIDFromDWARF (const DWARFDIE &die) override;
  71
  72     bool
  73     LayoutRecordType(const clang::RecordDecl *record_decl,
  74                      uint64_t &bit_size,
  75                      uint64_t &alignment,
  76                      llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
  77                      llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
  78                      llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
  79
  80 protected:
  81     class DelayedAddObjCClassProperty;
  82     typedef std::vector <DelayedAddObjCClassProperty> DelayedPropertyList;
  83
  84     struct LayoutInfo
  85     {
  86         LayoutInfo () :
  87         bit_size(0),
  88         alignment(0),
  89         field_offsets(),
  90         base_offsets(),
  91         vbase_offsets()
  92         {
  93         }
  94         uint64_t bit_size;
  95         uint64_t alignment;
  96         llvm::DenseMap<const clang::FieldDecl *, uint64_t> field_offsets;
  97         llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> base_offsets;
  98         llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> vbase_offsets;
  99     };
 100
 101     clang::BlockDecl *
 102     ResolveBlockDIE (const DWARFDIE &die);
 103
 104     clang::NamespaceDecl *
 105     ResolveNamespaceDIE (const DWARFDIE &die);
 106
 107     typedef llvm::DenseMap<const clang::RecordDecl *, LayoutInfo> RecordDeclToLayoutMap;
 108
 109     bool
 110     ParseTemplateDIE (const DWARFDIE &die,
 111                       lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
 112     bool
 113     ParseTemplateParameterInfos (const DWARFDIE &parent_die,
 114                                  lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
 115
 116     bool
 117     ParseChildMembers (const lldb_private::SymbolContext& sc,
 118                        const DWARFDIE &die,
 119                        lldb_private::CompilerType &class_compiler_type,
 120                        const lldb::LanguageType class_language,
 121                        std::vector<clang::CXXBaseSpecifier *>& base_classes,
 122                        std::vector<int>& member_accessibilities,
 123                        DWARFDIECollection& member_function_dies,
 124                        DelayedPropertyList& delayed_properties,
 125                        lldb::AccessType &default_accessibility,
 126                        bool &is_a_class,
 127                        LayoutInfo &layout_info);
 128
 129     size_t
 130     ParseChildParameters (const lldb_private::SymbolContext& sc,
 131                           clang::DeclContext *containing_decl_ctx,
 132                           const DWARFDIE &parent_die,
 133                           bool skip_artificial,
 134                           bool &is_static,
 135                           bool &is_variadic,
 136                           std::vector<lldb_private::CompilerType>& function_args,
 137                           std::vector<clang::ParmVarDecl*>& function_param_decls,
 138                           unsigned &type_quals);
 139
 140     void
 141     ParseChildArrayInfo (const lldb_private::SymbolContext& sc,
 142                          const DWARFDIE &parent_die,
 143                          int64_t& first_index,
 144                          std::vector<uint64_t>& element_orders,
 145                          uint32_t& byte_stride,
 146                          uint32_t& bit_stride);
 147
 148     size_t
 149     ParseChildEnumerators (const lldb_private::SymbolContext& sc,
 150                            lldb_private::CompilerType &compiler_type,
 151                            bool is_signed,
 152                            uint32_t enumerator_byte_size,
 153                            const DWARFDIE &parent_die);
 154
 155     lldb_private::Type *
 156     GetTypeForDIE (const DWARFDIE &die);
 157
 158     clang::Decl *
 159     GetClangDeclForDIE (const DWARFDIE &die);
 160
 161     clang::DeclContext *
 162     GetClangDeclContextForDIE (const DWARFDIE &die);
 163
 164     clang::DeclContext *
 165     GetClangDeclContextContainingDIE (const DWARFDIE &die,
 166                                       DWARFDIE *decl_ctx_die);
 167
 168     bool
 169     CopyUniqueClassMethodTypes (const DWARFDIE &src_class_die,
 170                                 const DWARFDIE &dst_class_die,
 171                                 lldb_private::Type *class_type,
 172                                 DWARFDIECollection &failures);
 173
 174     clang::DeclContext *
 175     GetCachedClangDeclContextForDIE (const DWARFDIE &die);
 176
 177     void
 178     LinkDeclContextToDIE (clang::DeclContext *decl_ctx,
 179                           const DWARFDIE &die);
 180
 181     void
 182     LinkDeclToDIE (clang::Decl *decl, const DWARFDIE &die);
 183
 184     lldb_private::ClangASTImporter &
 185     GetClangASTImporter();
 186
 187     lldb::TypeSP
 188     ParseTypeFromDWO (const DWARFDIE &die, lldb_private::Log *log);
 189
 190     //----------------------------------------------------------------------
 191     // Return true if this type is a declaration to a type in an external
 192     // module.
 193     //----------------------------------------------------------------------
 194     lldb::ModuleSP
 195     GetModuleForType (const DWARFDIE &die);
 196
 197     typedef llvm::SmallPtrSet<const DWARFDebugInfoEntry *, 4> DIEPointerSet;
 198     typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::DeclContext *> DIEToDeclContextMap;
 199     //typedef llvm::DenseMap<const clang::DeclContext *, DIEPointerSet> DeclContextToDIEMap;
 200     typedef std::multimap<const clang::DeclContext *, const DWARFDIE> DeclContextToDIEMap;
 201     typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::Decl *> DIEToDeclMap;
 202     typedef llvm::DenseMap<const clang::Decl *, DIEPointerSet> DeclToDIEMap;
 203
 204     lldb_private::ClangASTContext &m_ast;
 205     DIEToDeclMap m_die_to_decl;
 206     DeclToDIEMap m_decl_to_die;
 207     DIEToDeclContextMap m_die_to_decl_ctx;
 208     DeclContextToDIEMap m_decl_ctx_to_die;
 209     RecordDeclToLayoutMap m_record_decl_to_layout_map;
 210     std::unique_ptr<lldb_private::ClangASTImporter> m_clang_ast_importer_ap;
 211 };
 212
 213 #endif // SymbolFileDWARF_DWARFASTParserClang_h_