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/*=============================================================================
Copyright (c) 2005-2007 Dan Marsden
Copyright (c) 2005-2007 Joel de Guzman
Distributed under 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 PHOENIX_STATEMENT_THROW_HPP
#define PHOENIX_STATEMENT_THROW_HPP
#include <boost/spirit/home/phoenix/core/actor.hpp>
#include <boost/spirit/home/phoenix/core/composite.hpp>
#include <boost/spirit/home/phoenix/core/compose.hpp>
#include <boost/mpl/bool.hpp>
namespace boost { namespace phoenix {
struct throw_new_eval
{
template<typename Env, typename ThrowExpr>
struct result
{
typedef void type;
};
template<typename Rt, typename Env, typename ThrowExpr>
static void
eval(const Env& env, ThrowExpr& throwExpr)
{
throw throwExpr.eval(env);
}
};
struct throw_again_eval
{
typedef mpl::false_ no_nullary;
template<typename Env>
struct result
{
typedef void type;
};
template<typename Env>
void eval(const Env&) const
{
throw;
}
};
inline actor<throw_again_eval> throw_()
{
return throw_again_eval();
}
template<typename Actor>
actor<typename as_composite<throw_new_eval, Actor>::type>
throw_(const Actor& a)
{
return compose<throw_new_eval>(a);
}
}}
#endif
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