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1//===-- DebugMacros.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_SYMBOL_DEBUGMACROS_H
10#define LLDB_SYMBOL_DEBUGMACROS_H
11
12#include <memory>
13#include <vector>
14
15#include "lldb/Utility/ConstString.h"
16#include "lldb/lldb-private.h"
17
18namespace lldb_private {
19
20class CompileUnit;
21class DebugMacros;
22typedef std::shared_ptr<DebugMacros> DebugMacrosSP;
23
24class DebugMacroEntry {
25public:
26 enum EntryType : uint8_t {
27 INVALID, DEFINE, UNDEF, START_FILE, END_FILE, INDIRECT
28 };
29
30 static DebugMacroEntry CreateDefineEntry(uint32_t line, const char *str);
31
32 static DebugMacroEntry CreateUndefEntry(uint32_t line, const char *str);
33
34 static DebugMacroEntry CreateStartFileEntry(uint32_t line,
35 uint32_t debug_line_file_idx);
36
37 static DebugMacroEntry CreateEndFileEntry();
38
39 static DebugMacroEntry
40 CreateIndirectEntry(const DebugMacrosSP &debug_macros_sp);
41
42 DebugMacroEntry() : m_type(INVALID), m_line(0), m_debug_line_file_idx(0) {}
43
44 ~DebugMacroEntry() = default;
45
46 EntryType GetType() const { return static_cast<EntryType>(m_type); }
47
48 uint64_t GetLineNumber() const { return m_line; }
49
50 ConstString GetMacroString() const { return m_str; }
51
52 const FileSpec &GetFileSpec(CompileUnit *comp_unit) const;
53
54 DebugMacros *GetIndirectDebugMacros() const {
55 return m_debug_macros_sp.get();
56 }
57
58private:
59 DebugMacroEntry(EntryType type, uint32_t line, uint32_t debug_line_file_idx,
60 const char *str);
61
62 DebugMacroEntry(EntryType type, const DebugMacrosSP &debug_macros_sp);
63
64 uint32_t m_type : 3;
65 uint32_t m_line : 29;
66 uint32_t m_debug_line_file_idx;
67 ConstString m_str;
68 DebugMacrosSP m_debug_macros_sp;
69};
70
71class DebugMacros {
72public:
73 DebugMacros() = default;
74
75 ~DebugMacros() = default;
76
77 void AddMacroEntry(const DebugMacroEntry &entry) {
78 m_macro_entries.push_back(entry);
79 }
80
81 size_t GetNumMacroEntries() const { return m_macro_entries.size(); }
82
83 DebugMacroEntry GetMacroEntryAtIndex(const size_t index) const {
84 if (index < m_macro_entries.size())
85 return m_macro_entries[index];
86 else
87 return DebugMacroEntry();
88 }
89
90private:
91 DebugMacros(const DebugMacros &) = delete;
92 const DebugMacros &operator=(const DebugMacros &) = delete;
93
94 std::vector<DebugMacroEntry> m_macro_entries;
95};
96
97} // namespace lldb_private
98
99#endif // LLDB_SYMBOL_DEBUGMACROS_H
100

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source code of lldb/include/lldb/Symbol/DebugMacros.h