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1 //===-- PDBASTParser.h ------------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_PDB_PDBASTPARSER_H
10 #define LLDB_SOURCE_PLUGINS_SYMBOLFILE_PDB_PDBASTPARSER_H
11 
12 #include "lldb/lldb-forward.h"
13 
14 #include "Plugins/ExpressionParser/Clang/ClangASTImporter.h"
15 
16 class SymbolFilePDB;
17 
18 namespace clang {
19 class CharUnits;
20 class CXXRecordDecl;
21 class FieldDecl;
22 class RecordDecl;
23 } // namespace clang
24 
25 namespace lldb_private {
26 class TypeSystemClang;
27 class CompilerType;
28 } // namespace lldb_private
29 
30 namespace llvm {
31 namespace pdb {
32 template <typename ChildType> class ConcreteSymbolEnumerator;
33 
34 class PDBSymbol;
35 class PDBSymbolData;
36 class PDBSymbolFunc;
37 class PDBSymbolTypeBaseClass;
38 class PDBSymbolTypeBuiltin;
39 class PDBSymbolTypeUDT;
40 } // namespace pdb
41 } // namespace llvm
42 
43 class PDBASTParser {
44 public:
45   PDBASTParser(lldb_private::TypeSystemClang &ast);
46   ~PDBASTParser();
47 
48   lldb::TypeSP CreateLLDBTypeFromPDBType(const llvm::pdb::PDBSymbol &type);
49   bool CompleteTypeFromPDB(lldb_private::CompilerType &compiler_type);
50 
51   clang::Decl *GetDeclForSymbol(const llvm::pdb::PDBSymbol &symbol);
52 
53   clang::DeclContext *
54   GetDeclContextForSymbol(const llvm::pdb::PDBSymbol &symbol);
55   clang::DeclContext *
56   GetDeclContextContainingSymbol(const llvm::pdb::PDBSymbol &symbol);
57 
58   void ParseDeclsForDeclContext(const clang::DeclContext *decl_context);
59 
60   clang::NamespaceDecl *FindNamespaceDecl(const clang::DeclContext *parent,
61                                           llvm::StringRef name);
62 
GetClangASTImporter()63   lldb_private::ClangASTImporter &GetClangASTImporter() {
64     return m_ast_importer;
65   }
66 
67 private:
68   typedef llvm::DenseMap<clang::CXXRecordDecl *, lldb::user_id_t>
69       CXXRecordDeclToUidMap;
70   typedef llvm::DenseMap<lldb::user_id_t, clang::Decl *> UidToDeclMap;
71   typedef std::set<clang::NamespaceDecl *> NamespacesSet;
72   typedef llvm::DenseMap<clang::DeclContext *, NamespacesSet>
73       ParentToNamespacesMap;
74   typedef llvm::DenseMap<clang::DeclContext *, lldb::user_id_t>
75       DeclContextToUidMap;
76   typedef llvm::pdb::ConcreteSymbolEnumerator<llvm::pdb::PDBSymbolData>
77       PDBDataSymbolEnumerator;
78   typedef llvm::pdb::ConcreteSymbolEnumerator<llvm::pdb::PDBSymbolTypeBaseClass>
79       PDBBaseClassSymbolEnumerator;
80   typedef llvm::pdb::ConcreteSymbolEnumerator<llvm::pdb::PDBSymbolFunc>
81       PDBFuncSymbolEnumerator;
82 
83   bool AddEnumValue(lldb_private::CompilerType enum_type,
84                     const llvm::pdb::PDBSymbolData &data);
85   bool CompleteTypeFromUDT(lldb_private::SymbolFile &symbol_file,
86                            lldb_private::CompilerType &compiler_type,
87                            llvm::pdb::PDBSymbolTypeUDT &udt);
88   void
89   AddRecordMembers(lldb_private::SymbolFile &symbol_file,
90                    lldb_private::CompilerType &record_type,
91                    PDBDataSymbolEnumerator &members_enum,
92                    lldb_private::ClangASTImporter::LayoutInfo &layout_info);
93   void
94   AddRecordBases(lldb_private::SymbolFile &symbol_file,
95                  lldb_private::CompilerType &record_type, int record_kind,
96                  PDBBaseClassSymbolEnumerator &bases_enum,
97                  lldb_private::ClangASTImporter::LayoutInfo &layout_info) const;
98   void AddRecordMethods(lldb_private::SymbolFile &symbol_file,
99                         lldb_private::CompilerType &record_type,
100                         PDBFuncSymbolEnumerator &methods_enum);
101   clang::CXXMethodDecl *
102   AddRecordMethod(lldb_private::SymbolFile &symbol_file,
103                   lldb_private::CompilerType &record_type,
104                   const llvm::pdb::PDBSymbolFunc &method) const;
105 
106   lldb_private::TypeSystemClang &m_ast;
107   lldb_private::ClangASTImporter m_ast_importer;
108 
109   CXXRecordDeclToUidMap m_forward_decl_to_uid;
110   UidToDeclMap m_uid_to_decl;
111   ParentToNamespacesMap m_parent_to_namespaces;
112   NamespacesSet m_namespaces;
113   DeclContextToUidMap m_decl_context_to_uid;
114 };
115 
116 #endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_PDB_PDBASTPARSER_H
117