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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
#ifndef DUNE_CLASSNAME_HH
#define DUNE_CLASSNAME_HH
/** \file
* \brief A free function to provide the demangled class name
* of a given object or type as a string
*/
#include <cstdlib>
#include <memory>
#include <string>
#include <typeinfo>
#include <type_traits>
#if __has_include(<cxxabi.h>) && !DISABLE_CXA_DEMANGLE
#define HAVE_CXA_DEMANGLE 1
#include <cxxabi.h>
#endif // #if HAVE_CXA_DEMANGLE
namespace Dune {
namespace Impl {
inline std::string demangle(std::string name)
{
#if HAVE_CXA_DEMANGLE
int status;
std::unique_ptr<char, void(*)(void*)>
demangled(abi::__cxa_demangle(name.c_str(), nullptr, nullptr, &status),
std::free);
if( demangled )
name = demangled.get();
#endif // #if HAVE_CXA_DEMANGLE
return name;
}
}
/** \brief Provide the demangled class name of a type T as a string */
/*
* \ingroup CxxUtilities
*/
template <class T>
std::string className ()
{
typedef typename std::remove_reference<T>::type TR;
std::string className = Impl::demangle( typeid( TR ).name() );
if (std::is_const<TR>::value)
className += " const";
if (std::is_volatile<TR>::value)
className += " volatile";
if (std::is_lvalue_reference<T>::value)
className += "&";
else if (std::is_rvalue_reference<T>::value)
className += "&&";
return className;
}
/** \brief Provide the demangled class name of a given object as a string */
/*
* \ingroup CxxUtilities
*/
template <class T>
std::string className ( T&& v)
{
typedef typename std::remove_reference<T>::type TR;
std::string className = Impl::demangle( typeid(v).name() );
if (std::is_const<TR>::value)
className += " const";
if (std::is_volatile<TR>::value)
className += " volatile";
return className;
}
} // namespace Dune
#endif // DUNE_CLASSNAME_HH
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