DWARFASTParserClang.h revision 296417 
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
28class DWARFDebugInfoEntry;
29class DWARFDIECollection;
30
31class DWARFASTParserClang : public DWARFASTParser
32{
33public:
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
80protected:
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_
214