1 | //===-- CommandHistory.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_INTERPRETER_COMMANDHISTORY_H |
10 | #define LLDB_INTERPRETER_COMMANDHISTORY_H |
11 | |
12 | #include <mutex> |
13 | #include <optional> |
14 | #include <string> |
15 | #include <vector> |
16 | |
17 | #include "lldb/Utility/Stream.h" |
18 | #include "lldb/lldb-private.h" |
19 | |
20 | namespace lldb_private { |
21 | |
22 | class CommandHistory { |
23 | public: |
24 | CommandHistory() = default; |
25 | |
26 | ~CommandHistory() = default; |
27 | |
28 | size_t GetSize() const; |
29 | |
30 | bool IsEmpty() const; |
31 | |
32 | std::optional<llvm::StringRef> FindString(llvm::StringRef input_str) const; |
33 | |
34 | llvm::StringRef GetStringAtIndex(size_t idx) const; |
35 | |
36 | llvm::StringRef operator[](size_t idx) const; |
37 | |
38 | llvm::StringRef GetRecentmostString() const; |
39 | |
40 | void AppendString(llvm::StringRef str, bool reject_if_dupe = true); |
41 | |
42 | void Clear(); |
43 | |
44 | void Dump(Stream &stream, size_t start_idx = 0, |
45 | size_t stop_idx = SIZE_MAX) const; |
46 | |
47 | static const char g_repeat_char = '!'; |
48 | |
49 | private: |
50 | CommandHistory(const CommandHistory &) = delete; |
51 | const CommandHistory &operator=(const CommandHistory &) = delete; |
52 | |
53 | typedef std::vector<std::string> History; |
54 | mutable std::recursive_mutex m_mutex; |
55 | History m_history; |
56 | }; |
57 | |
58 | } // namespace lldb_private |
59 | |
60 | #endif // LLDB_INTERPRETER_COMMANDHISTORY_H |
61 | |