1 //===-- OptionValueBoolean.h ------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef liblldb_OptionValueBoolean_h_
11 #define liblldb_OptionValueBoolean_h_
12 
13 #include "lldb/Interpreter/OptionValue.h"
14 
15 namespace lldb_private {
16 
17 class OptionValueBoolean : public OptionValue {
18 public:
OptionValueBoolean(bool value)19   OptionValueBoolean(bool value)
20       : OptionValue(), m_current_value(value), m_default_value(value) {}
OptionValueBoolean(bool current_value,bool default_value)21   OptionValueBoolean(bool current_value, bool default_value)
22       : OptionValue(), m_current_value(current_value),
23         m_default_value(default_value) {}
24 
~OptionValueBoolean()25   ~OptionValueBoolean() override {}
26 
27   //---------------------------------------------------------------------
28   // Virtual subclass pure virtual overrides
29   //---------------------------------------------------------------------
30 
GetType()31   OptionValue::Type GetType() const override { return eTypeBoolean; }
32 
33   void DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
34                  uint32_t dump_mask) override;
35 
36   Status
37   SetValueFromString(llvm::StringRef value,
38                      VarSetOperationType op = eVarSetOperationAssign) override;
39   Status
40   SetValueFromString(const char *,
41                      VarSetOperationType = eVarSetOperationAssign) = delete;
42 
Clear()43   bool Clear() override {
44     m_current_value = m_default_value;
45     m_value_was_set = false;
46     return true;
47   }
48 
49   size_t AutoComplete(CommandInterpreter &interpreter,
50                       CompletionRequest &request) override;
51 
52   //---------------------------------------------------------------------
53   // Subclass specific functions
54   //---------------------------------------------------------------------
55 
56   //------------------------------------------------------------------
57   /// Convert to bool operator.
58   ///
59   /// This allows code to check a OptionValueBoolean in conditions.
60   ///
61   /// @code
62   /// OptionValueBoolean bool_value(...);
63   /// if (bool_value)
64   /// { ...
65   /// @endcode
66   ///
67   /// @return
68   ///     /b True this object contains a valid namespace decl, \b
69   ///     false otherwise.
70   //------------------------------------------------------------------
71   explicit operator bool() const { return m_current_value; }
72 
73   const bool &operator=(bool b) {
74     m_current_value = b;
75     return m_current_value;
76   }
77 
GetCurrentValue()78   bool GetCurrentValue() const { return m_current_value; }
79 
GetDefaultValue()80   bool GetDefaultValue() const { return m_default_value; }
81 
SetCurrentValue(bool value)82   void SetCurrentValue(bool value) { m_current_value = value; }
83 
SetDefaultValue(bool value)84   void SetDefaultValue(bool value) { m_default_value = value; }
85 
86   lldb::OptionValueSP DeepCopy() const override;
87 
88 protected:
89   bool m_current_value;
90   bool m_default_value;
91 };
92 
93 } // namespace lldb_private
94 
95 #endif // liblldb_OptionValueBoolean_h_
96