1 //===-- DWARFDIE.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 SymbolFileDWARF_DWARFDIE_h_
10 #define SymbolFileDWARF_DWARFDIE_h_
11 
12 #include "DWARFBaseDIE.h"
13 #include "llvm/ADT/SmallSet.h"
14 
15 class DWARFDIE : public DWARFBaseDIE {
16 public:
17   using DWARFBaseDIE::DWARFBaseDIE;
18 
19   // Tests
20   bool IsStructUnionOrClass() const;
21 
22   bool IsMethod() const;
23 
24   // Accessors
25 
26   // Accessing information about a DIE
27   const char *GetMangledName() const;
28 
29   const char *GetPubname() const;
30 
31   const char *GetQualifiedName(std::string &storage) const;
32 
33   using DWARFBaseDIE::GetName;
34   void GetName(lldb_private::Stream &s) const;
35 
36   void AppendTypeName(lldb_private::Stream &s) const;
37 
38   lldb_private::Type *ResolveType() const;
39 
40   // Resolve a type by UID using this DIE's DWARF file
41   lldb_private::Type *ResolveTypeUID(const DWARFDIE &die) const;
42 
43   // Functions for obtaining DIE relations and references
44 
45   DWARFDIE
46   GetParent() const;
47 
48   DWARFDIE
49   GetFirstChild() const;
50 
51   DWARFDIE
52   GetSibling() const;
53 
54   DWARFDIE
55   GetReferencedDIE(const dw_attr_t attr) const;
56 
57   // Get a another DIE from the same DWARF file as this DIE. This will
58   // check the current DIE's compile unit first to see if "die_offset" is
59   // in the same compile unit, and fall back to checking the DWARF file.
60   DWARFDIE
61   GetDIE(dw_offset_t die_offset) const;
62   using DWARFBaseDIE::GetDIE;
63 
64   DWARFDIE
65   LookupDeepestBlock(lldb::addr_t file_addr) const;
66 
67   DWARFDIE
68   GetParentDeclContextDIE() const;
69 
70   // DeclContext related functions
71   std::vector<DWARFDIE> GetDeclContextDIEs() const;
72 
73   void GetDWARFDeclContext(DWARFDeclContext &dwarf_decl_ctx) const;
74 
75   /// Return this DIE's decl context as it is needed to look up types
76   /// in Clang's -gmodules debug info format.
77   void GetDeclContext(
78       llvm::SmallVectorImpl<lldb_private::CompilerContext> &context) const;
79 
80   // Getting attribute values from the DIE.
81   //
82   // GetAttributeValueAsXXX() functions should only be used if you are
83   // looking for one or two attributes on a DIE. If you are trying to
84   // parse all attributes, use GetAttributes (...) instead
85   DWARFDIE
86   GetAttributeValueAsReferenceDIE(const dw_attr_t attr) const;
87 
88   bool GetDIENamesAndRanges(const char *&name, const char *&mangled,
89                             DWARFRangeList &ranges, int &decl_file,
90                             int &decl_line, int &decl_column, int &call_file,
91                             int &call_line, int &call_column,
92                             lldb_private::DWARFExpression *frame_base) const;
93 
94   // CompilerDecl related functions
95 
96   lldb_private::CompilerDecl GetDecl() const;
97 
98   lldb_private::CompilerDeclContext GetDeclContext() const;
99 
100   lldb_private::CompilerDeclContext GetContainingDeclContext() const;
101 };
102 
103 #endif // SymbolFileDWARF_DWARFDIE_h_
104