| 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 <cxxabi.h> |
| 13 | #include <string> |
| 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 | /* |
| 23 | * Due to a bug in g++ < 7.1, this specialization must be enclosed in the fmt namespace, |
| 24 | * see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480. |
| 25 | */ |
| 26 | namespace fmt { |
| 27 | template <> |
| 28 | struct formatter<std::type_info> : formatter<std::string> { |
| 29 | template <typename FormatContextType> |
| 30 | typename FormatContextType::iterator format(const std::type_info& type_info, |
| 31 | FormatContextType& ctx) |
| 32 | { |
| 33 | int status; |
| 34 | auto demangled_name = |
| 35 | abi::__cxa_demangle(type_info.name(), nullptr, nullptr, &status); |
| 36 | auto it = status == 0 ? formatter<std::string>::format(demangled_name, ctx) : |
| 37 | formatter<std::string>::format(type_info.name(), ctx); |
| 38 | |
| 39 | free(demangled_name); |
| 40 | return it; |
| 41 | } |
| 42 | }; |
| 43 | } /* namespace fmt */ |
| 44 | |
| 45 | #endif /* LTTNG_FORMAT_H */ |