contrib/llvm/tools/lldb/include/lldb/Core/ValueObjectConstResultImpl.h

   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
  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
  51     NeedsDerefOnTarget()
  52     {
  53         m_impl_backend->UpdateValueIfNeeded(false);
  54         return (m_impl_backend->GetValue().GetValueType() == Value::eValueTypeHostAddress);
  55     }
  56
  57     lldb::addr_t
  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_