eqemu-server/libs/luabind/luabind/exception_handler.hpp

78 lines
1.6 KiB
C++

// Copyright Daniel Wallin 2005. Use, modification and distribution is
// subject to the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef LUABIND_EXCEPTION_HANDLER_050601_HPP
#define LUABIND_EXCEPTION_HANDLER_050601_HPP
#include <luabind/config.hpp> // for LUABIND_API
#include <type_traits>
#include <luabind/lua_include.hpp>
#include <luabind/detail/meta.hpp>
namespace luabind {
# ifndef LUABIND_NO_EXCEPTIONS
namespace detail {
struct LUABIND_API exception_handler_base
{
exception_handler_base()
: next(0)
{}
virtual ~exception_handler_base() {}
virtual void handle(lua_State*) const = 0;
void try_next(lua_State*) const;
exception_handler_base* next;
};
template<class E, class Handler>
struct exception_handler : exception_handler_base
{
using argument = E const&;
exception_handler(Handler handler)
: handler(handler)
{}
void handle(lua_State* L) const
{
try
{
try_next(L);
}
catch(argument e)
{
handler(L, e);
}
}
Handler handler;
};
LUABIND_API void handle_exception_aux(lua_State* L);
LUABIND_API void register_exception_handler(exception_handler_base*);
} // namespace detail
# endif
template<class E, class Handler>
void register_exception_handler(Handler handler, meta::type<E>* = 0)
{
# ifndef LUABIND_NO_EXCEPTIONS
detail::register_exception_handler(
new detail::exception_handler<E, Handler>(handler)
);
# endif
}
} // namespace luabind
#endif // LUABIND_EXCEPTION_HANDLER_050601_HPP