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