Build fix: specialization of template in different namespace

[lttng-tools.git] / src / common / format.hpp

/*
 * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 */
#ifndef LTTNG_FORMAT_H
#define LTTNG_FORMAT_H

#include <common/macros.hpp>

#include <string>
#include <cxxabi.h>

DIAGNOSTIC_PUSH
DIAGNOSTIC_IGNORE_SUGGEST_ATTRIBUTE_FORMAT
DIAGNOSTIC_IGNORE_DUPLICATED_BRANCHES
#define FMT_HEADER_ONLY
#include <vendor/fmt/core.h>
DIAGNOSTIC_POP

namespace fmt {
template <>
struct formatter<std::type_info> : formatter<std::string> {
	template <typename FormatCtx>
	typename FormatCtx::iterator format(const std::type_info& type_info, FormatCtx& ctx)
	{
		int status;
		auto demangled_name = abi::__cxa_demangle(type_info.name(), nullptr, 0, &status);
		auto it = status == 0 ? formatter<std::string>::format(demangled_name, ctx) :
					formatter<std::string>::format(type_info.name(), ctx);

		free(demangled_name);
		return it;
	}
};
} /* namespace fmt */

#endif /* LTTNG_FORMAT_H */