114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
/*==============================================================================
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Copyright (c) 2005-2007 Dan Marsden
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Copyright (c) 2005-2010 Joel de Guzman
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Copyright (c) 2010 Thomas Heller
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#ifndef BOOST_PHOENIX_STATEMENT_THROW_HPP
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#define BOOST_PHOENIX_STATEMENT_THROW_HPP
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#include <boost/phoenix/core/limits.hpp>
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#include <boost/phoenix/core/actor.hpp>
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#include <boost/phoenix/core/call.hpp>
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#include <boost/phoenix/core/meta_grammar.hpp>
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#include <boost/phoenix/core/expression.hpp>
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#include <boost/phoenix/core/terminal.hpp>
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#include <boost/phoenix/core/value.hpp>
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namespace boost { namespace phoenix
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{
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namespace tag
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{
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struct throw_ {};
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}
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namespace expression
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{
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template <typename A>
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struct throw_
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: expr<tag::throw_, A>
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{};
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}
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namespace rule
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{
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struct throw_
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: expression::throw_<meta_grammar>
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{};
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}
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template <typename Dummy>
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struct meta_grammar::case_<tag::throw_, Dummy>
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: enable_rule<rule::throw_, Dummy>
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{};
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struct throw_eval
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{
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typedef void result_type;
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template <typename ThrowExpr, typename Context>
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result_type
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operator()(ThrowExpr const& throw_expr, Context const & ctx) const
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{
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throw boost::phoenix::eval(throw_expr, ctx);
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}
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};
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template <typename Dummy>
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struct default_actions::when<rule::throw_, Dummy>
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: call<throw_eval>
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{};
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template <typename ThrowExpr>
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inline
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typename expression::throw_<ThrowExpr>::type const
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throw_(ThrowExpr const& throw_expr)
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{
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return expression::throw_<ThrowExpr>::make(throw_expr);
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}
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namespace detail
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{
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struct rethrow {};
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}
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namespace expression
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{
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struct rethrow
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: expression::value<detail::rethrow>
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{};
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}
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template<typename Dummy>
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struct is_custom_terminal<detail::rethrow, Dummy>
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: mpl::true_
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{};
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template<typename Dummy>
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struct custom_terminal<detail::rethrow, Dummy>
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{
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typedef void result_type;
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//#ifndef BOOST_PHOENIX_NO_SPECIALIZE_CUSTOM_TERMINAL
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typedef void _is_throw_custom_terminal; // fix for #7730
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//#endif
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template <typename Context>
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void operator()(detail::rethrow, Context &) const
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{
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throw;
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}
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};
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inline
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expression::rethrow::type const
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throw_()
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{
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return expression::rethrow::make(detail::rethrow());
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}
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}}
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#endif
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