src/common/format.hpp

   1 /*
   2  * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: LGPL-2.1-only
   5  *
   6  */
   7 #ifndef LTTNG_FORMAT_H
   8 #define LTTNG_FORMAT_H
   9
  10 #include <common/macros.hpp>
  11
  12 #include <string>
  13 #include <cxxabi.h>
  14
  15 DIAGNOSTIC_PUSH
  16 DIAGNOSTIC_IGNORE_SUGGEST_ATTRIBUTE_FORMAT
  17 DIAGNOSTIC_IGNORE_DUPLICATED_BRANCHES
  18 #define FMT_HEADER_ONLY
  19 #include <vendor/fmt/core.h>
  20 DIAGNOSTIC_POP
  21
  22 template <>
  23 struct fmt::formatter<std::type_info> : fmt::formatter<std::string> {
  24         template <typename FormatCtx>
  25         typename FormatCtx::iterator format(const std::type_info& type_info, FormatCtx& ctx)
  26         {
  27                 int status;
  28                 auto demangled_name = abi::__cxa_demangle(type_info.name(), nullptr, 0, &status);
  29                 auto it = status == 0 ? fmt::formatter<std::string>::format(demangled_name, ctx) :
  30                                               fmt::formatter<std::string>::format(type_info.name(), ctx);
  31
  32                 free(demangled_name);
  33                 return it;
  34         }
  35 };
  36
  37 #endif /* LTTNG_FORMAT_H */