src/cpp-common/bt2/raw-value-proxy.hpp

   1 /*
   2  * Copyright (c) 2023 Philippe Proulx <pproulx@efficios.com>
   3  *
   4  * SPDX-License-Identifier: MIT
   5  */
   6
   7 #ifndef BABELTRACE_CPP_COMMON_BT2_RAW_VALUE_PROXY_HPP
   8 #define BABELTRACE_CPP_COMMON_BT2_RAW_VALUE_PROXY_HPP
   9
  10 #include <string>
  11
  12 namespace bt2 {
  13
  14 template <typename ObjT>
  15 class RawValueProxy
  16 {
  17 private:
  18     using _RawVal = typename ObjT::Value;
  19
  20 public:
  21     explicit RawValueProxy(const ObjT obj) : _mObj {obj}
  22     {
  23     }
  24
  25     RawValueProxy& operator=(const _RawVal& rawVal)
  26     {
  27         _mObj.value(rawVal);
  28         return *this;
  29     }
  30
  31     operator _RawVal() const noexcept
  32     {
  33         return _mObj.value();
  34     }
  35
  36 private:
  37     ObjT _mObj;
  38 };
  39
  40 template <typename ObjT>
  41 class RawStringValueProxy final : public RawValueProxy<ObjT>
  42 {
  43 public:
  44     explicit RawStringValueProxy(const ObjT obj) : RawValueProxy<ObjT> {obj}
  45     {
  46     }
  47
  48     RawStringValueProxy& operator=(const std::string& rawVal)
  49     {
  50         RawValueProxy<ObjT>::operator=(rawVal.data());
  51         return *this;
  52     }
  53 };
  54
  55 } /* namespace bt2 */
  56
  57 #endif /* BABELTRACE_CPP_COMMON_BT2_RAW_VALUE_PROXY_HPP */