1 //===-- OptionValueRegex.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 liblldb_OptionValueRegex_h_
10 #define liblldb_OptionValueRegex_h_
11 
12 #include "lldb/Interpreter/OptionValue.h"
13 #include "lldb/Utility/RegularExpression.h"
14 
15 namespace lldb_private {
16 
17 class OptionValueRegex : public OptionValue {
18 public:
19   OptionValueRegex(const char *value = nullptr)
20       : OptionValue(), m_regex(llvm::StringRef::withNullAsEmpty(value)) {}
21 
22   ~OptionValueRegex() override = default;
23 
24   // Virtual subclass pure virtual overrides
25 
26   OptionValue::Type GetType() const override { return eTypeRegex; }
27 
28   void DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
29                  uint32_t dump_mask) override;
30 
31   Status
32   SetValueFromString(llvm::StringRef value,
33                      VarSetOperationType op = eVarSetOperationAssign) override;
34   Status
35   SetValueFromString(const char *,
36                      VarSetOperationType = eVarSetOperationAssign) = delete;
37 
38   bool Clear() override {
39     m_regex = RegularExpression();
40     m_value_was_set = false;
41     return true;
42   }
43 
44   lldb::OptionValueSP DeepCopy() const override;
45 
46   // Subclass specific functions
47   const RegularExpression *GetCurrentValue() const {
48     return (m_regex.IsValid() ? &m_regex : nullptr);
49   }
50 
51   void SetCurrentValue(const char *value) {
52     if (value && value[0])
53       m_regex = RegularExpression(llvm::StringRef(value));
54     else
55       m_regex = RegularExpression();
56   }
57 
58   bool IsValid() const { return m_regex.IsValid(); }
59 
60 protected:
61   RegularExpression m_regex;
62 };
63 
64 } // namespace lldb_private
65 
66 #endif // liblldb_OptionValueRegex_h_
67