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

   1 //===-- ValueObjectConstResultImpl.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 liblldb_ValueObjectConstResultImpl_h_
  10 #define liblldb_ValueObjectConstResultImpl_h_
  11
  12 #include "lldb/Utility/ConstString.h"
  13 #include "lldb/lldb-defines.h"
  14 #include "lldb/lldb-forward.h"
  15 #include "lldb/lldb-private-enumerations.h"
  16 #include "lldb/lldb-types.h"
  17
  18 #include <stddef.h>
  19 #include <stdint.h>
  20 namespace lldb_private {
  21 class CompilerType;
  22 class DataExtractor;
  23 class Status;
  24 class ValueObject;
  25 }
  26
  27 namespace lldb_private {
  28
  29 // A class wrapping common implementation details for operations in
  30 // ValueObjectConstResult ( & Child ) that may need to jump from the host
  31 // memory space into the target's memory space
  32 class ValueObjectConstResultImpl {
  33 public:
  34   ValueObjectConstResultImpl(ValueObject *valobj,
  35                              lldb::addr_t live_address = LLDB_INVALID_ADDRESS);
  36
  37   virtual ~ValueObjectConstResultImpl() = default;
  38
  39   lldb::ValueObjectSP Dereference(Status &error);
  40
  41   ValueObject *CreateChildAtIndex(size_t idx, bool synthetic_array_member,
  42                                   int32_t synthetic_index);
  43
  44   lldb::ValueObjectSP
  45   GetSyntheticChildAtOffset(uint32_t offset, const CompilerType &type,
  46                             bool can_create,
  47                             ConstString name_const_str = ConstString());
  48
  49   lldb::ValueObjectSP AddressOf(Status &error);
  50
  51   lldb::addr_t GetLiveAddress() { return m_live_address; }
  52
  53   lldb::ValueObjectSP Cast(const CompilerType &compiler_type);
  54
  55   void SetLiveAddress(lldb::addr_t addr = LLDB_INVALID_ADDRESS,
  56                       AddressType address_type = eAddressTypeLoad) {
  57     m_live_address = addr;
  58     m_live_address_type = address_type;
  59   }
  60
  61   virtual lldb::addr_t GetAddressOf(bool scalar_is_load_address = true,
  62                                     AddressType *address_type = nullptr);
  63
  64   virtual size_t GetPointeeData(DataExtractor &data, uint32_t item_idx = 0,
  65                                 uint32_t item_count = 1);
  66
  67 private:
  68   ValueObject *m_impl_backend;
  69   lldb::addr_t m_live_address;
  70   AddressType m_live_address_type;
  71   lldb::ValueObjectSP m_load_addr_backend;
  72   lldb::ValueObjectSP m_address_of_backend;
  73
  74   DISALLOW_COPY_AND_ASSIGN(ValueObjectConstResultImpl);
  75 };
  76
  77 } // namespace lldb_private
  78
  79 #endif // liblldb_ValueObjectConstResultImpl_h_