1 | //===-- OptionParser.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_HOST_OPTIONPARSER_H |
10 | #define LLDB_HOST_OPTIONPARSER_H |
11 | |
12 | #include <mutex> |
13 | #include <string> |
14 | |
15 | #include "llvm/ADT/StringRef.h" |
16 | #include "llvm/ADT/ArrayRef.h" |
17 | |
18 | struct option; |
19 | |
20 | namespace lldb_private { |
21 | |
22 | struct OptionDefinition; |
23 | |
24 | struct Option { |
25 | // The definition of the option that this refers to. |
26 | const OptionDefinition *definition; |
27 | // if not NULL, set *flag to val when option found |
28 | int *flag; |
29 | // if flag not NULL, value to set *flag to; else return value |
30 | int val; |
31 | }; |
32 | |
33 | class OptionParser { |
34 | public: |
35 | enum OptionArgument { eNoArgument = 0, eRequiredArgument, eOptionalArgument }; |
36 | |
37 | static void Prepare(std::unique_lock<std::mutex> &lock); |
38 | |
39 | static void EnableError(bool error); |
40 | |
41 | /// Argv must be an argument vector "as passed to main", i.e. terminated with |
42 | /// a nullptr. |
43 | static int Parse(llvm::MutableArrayRef<char *> argv, |
44 | llvm::StringRef optstring, const Option *longopts, |
45 | int *longindex); |
46 | |
47 | static char *GetOptionArgument(); |
48 | static int GetOptionIndex(); |
49 | static int GetOptionErrorCause(); |
50 | static std::string GetShortOptionString(struct option *long_options); |
51 | }; |
52 | } |
53 | |
54 | #endif // LLDB_HOST_OPTIONPARSER_H |
55 | |