1 //===-- ValueObjectVariable.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_ValueObjectVariable_h_
11 #define liblldb_ValueObjectVariable_h_
12 
13 #include "lldb/Core/ValueObject.h"
14 
15 #include "lldb/Core/Value.h"
16 #include "lldb/Symbol/CompilerType.h"
17 #include "lldb/Utility/ConstString.h"
18 #include "lldb/lldb-defines.h"
19 #include "lldb/lldb-enumerations.h"
20 #include "lldb/lldb-forward.h"
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 namespace lldb_private {
26 class DataExtractor;
27 }
28 namespace lldb_private {
29 class Declaration;
30 }
31 namespace lldb_private {
32 class Status;
33 }
34 namespace lldb_private {
35 class ExecutionContextScope;
36 }
37 namespace lldb_private {
38 class SymbolContextScope;
39 }
40 
41 namespace lldb_private {
42 
43 //----------------------------------------------------------------------
44 // A ValueObject that contains a root variable that may or may not
45 // have children.
46 //----------------------------------------------------------------------
47 class ValueObjectVariable : public ValueObject {
48 public:
49   ~ValueObjectVariable() override;
50 
51   static lldb::ValueObjectSP Create(ExecutionContextScope *exe_scope,
52                                     const lldb::VariableSP &var_sp);
53 
54   uint64_t GetByteSize() override;
55 
56   ConstString GetTypeName() override;
57 
58   ConstString GetQualifiedTypeName() override;
59 
60   ConstString GetDisplayTypeName() override;
61 
62   size_t CalculateNumChildren(uint32_t max) override;
63 
64   lldb::ValueType GetValueType() const override;
65 
66   bool IsInScope() override;
67 
68   lldb::ModuleSP GetModule() override;
69 
70   SymbolContextScope *GetSymbolContextScope() override;
71 
72   bool GetDeclaration(Declaration &decl) override;
73 
74   const char *GetLocationAsCString() override;
75 
76   bool SetValueFromCString(const char *value_str, Status &error) override;
77 
78   bool SetData(DataExtractor &data, Status &error) override;
79 
GetVariable()80   virtual lldb::VariableSP GetVariable() override { return m_variable_sp; }
81 
82 protected:
83   bool UpdateValue() override;
84 
85   CompilerType GetCompilerTypeImpl() override;
86 
87   lldb::VariableSP
88       m_variable_sp;      ///< The variable that this value object is based upon
89   Value m_resolved_value; ///< The value that DWARFExpression resolves this
90                           ///variable to before we patch it up
91 
92 private:
93   ValueObjectVariable(ExecutionContextScope *exe_scope,
94                       const lldb::VariableSP &var_sp);
95   //------------------------------------------------------------------
96   // For ValueObject only
97   //------------------------------------------------------------------
98   DISALLOW_COPY_AND_ASSIGN(ValueObjectVariable);
99 };
100 
101 } // namespace lldb_private
102 
103 #endif // liblldb_ValueObjectVariable_h_
104