1 //===-- ValueObjectConstResultImpl.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_ValueObjectConstResultImpl_h_
11 #define liblldb_ValueObjectConstResultImpl_h_
12 
13 // C Includes
14 // C++ Includes
15 // Other libraries and framework includes
16 // Project includes
17 #include "lldb/Core/ValueObject.h"
18 
19 namespace lldb_private {
20 
21 //----------------------------------------------------------------------
22 // A class wrapping common implementation details for operations in
23 // ValueObjectConstResult ( & Child ) that may need to jump from the host
24 // memory space into the target's memory space
25 //----------------------------------------------------------------------
26 class ValueObjectConstResultImpl
27 {
28 public:
29 
30     ValueObjectConstResultImpl (ValueObject* valobj,
31                                 lldb::addr_t live_address = LLDB_INVALID_ADDRESS);
32 
33     virtual
~ValueObjectConstResultImpl()34     ~ValueObjectConstResultImpl()
35     {
36     }
37 
38     lldb::ValueObjectSP
39     Dereference (Error &error);
40 
41     ValueObject *
42     CreateChildAtIndex (size_t idx, bool synthetic_array_member, int32_t synthetic_index);
43 
44     lldb::ValueObjectSP
45     GetSyntheticChildAtOffset (uint32_t offset, const ClangASTType& type, bool can_create);
46 
47     lldb::ValueObjectSP
48     AddressOf (Error &error);
49 
50     bool
NeedsDerefOnTarget()51     NeedsDerefOnTarget()
52     {
53         m_impl_backend->UpdateValueIfNeeded(false);
54         return (m_impl_backend->GetValue().GetValueType() == Value::eValueTypeHostAddress);
55     }
56 
57     lldb::addr_t
GetLiveAddress()58     GetLiveAddress()
59     {
60         return m_live_address;
61     }
62 
63     void
64     SetLiveAddress(lldb::addr_t addr = LLDB_INVALID_ADDRESS,
65                    AddressType address_type = eAddressTypeLoad)
66     {
67         m_live_address = addr;
68         m_live_address_type = address_type;
69     }
70 
71     lldb::ValueObjectSP
72     DerefOnTarget();
73 
74     virtual lldb::addr_t
75     GetAddressOf (bool scalar_is_load_address = true,
76                   AddressType *address_type = NULL);
77 
78     virtual size_t
79     GetPointeeData (DataExtractor& data,
80                     uint32_t item_idx = 0,
81 					uint32_t item_count = 1);
82 
83 private:
84 
85     ValueObject *m_impl_backend;
86     lldb::addr_t m_live_address;
87     AddressType m_live_address_type;
88     lldb::ValueObjectSP m_load_addr_backend;
89     lldb::ValueObjectSP m_address_of_backend;
90 
91     DISALLOW_COPY_AND_ASSIGN (ValueObjectConstResultImpl);
92 };
93 
94 } // namespace lldb_private
95 
96 #endif  // liblldb_ValueObjectConstResultImpl_h_
97