1 //===-- OptionValueBoolean.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_OptionValueBoolean_h_
10 #define liblldb_OptionValueBoolean_h_
11 
12 #include "lldb/Interpreter/OptionValue.h"
13 
14 namespace lldb_private {
15 
16 class OptionValueBoolean : public OptionValue {
17 public:
18   OptionValueBoolean(bool value)
19       : OptionValue(), m_current_value(value), m_default_value(value) {}
20   OptionValueBoolean(bool current_value, bool default_value)
21       : OptionValue(), m_current_value(current_value),
22         m_default_value(default_value) {}
23 
24   ~OptionValueBoolean() override {}
25 
26   // Virtual subclass pure virtual overrides
27 
28   OptionValue::Type GetType() const override { return eTypeBoolean; }
29 
30   void DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
31                  uint32_t dump_mask) override;
32 
33   Status
34   SetValueFromString(llvm::StringRef value,
35                      VarSetOperationType op = eVarSetOperationAssign) override;
36   Status
37   SetValueFromString(const char *,
38                      VarSetOperationType = eVarSetOperationAssign) = delete;
39 
40   bool Clear() override {
41     m_current_value = m_default_value;
42     m_value_was_set = false;
43     return true;
44   }
45 
46   size_t AutoComplete(CommandInterpreter &interpreter,
47                       CompletionRequest &request) override;
48 
49   // Subclass specific functions
50 
51   /// Convert to bool operator.
52   ///
53   /// This allows code to check a OptionValueBoolean in conditions.
54   ///
55   /// \code
56   /// OptionValueBoolean bool_value(...);
57   /// if (bool_value)
58   /// { ...
59   /// \endcode
60   ///
61   /// \return
62   ///     /b True this object contains a valid namespace decl, \b
63   ///     false otherwise.
64   explicit operator bool() const { return m_current_value; }
65 
66   const bool &operator=(bool b) {
67     m_current_value = b;
68     return m_current_value;
69   }
70 
71   bool GetCurrentValue() const { return m_current_value; }
72 
73   bool GetDefaultValue() const { return m_default_value; }
74 
75   void SetCurrentValue(bool value) { m_current_value = value; }
76 
77   void SetDefaultValue(bool value) { m_default_value = value; }
78 
79   lldb::OptionValueSP DeepCopy() const override;
80 
81 protected:
82   bool m_current_value;
83   bool m_default_value;
84 };
85 
86 } // namespace lldb_private
87 
88 #endif // liblldb_OptionValueBoolean_h_
89