84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
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/*==============================================================================
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Copyright (c) 2001-2010 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_OBJECT_CONSTRUCT_HPP
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#define BOOST_PHOENIX_OBJECT_CONSTRUCT_HPP
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#include <boost/phoenix/core/limits.hpp>
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#include <boost/phoenix/core/call.hpp>
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#include <boost/phoenix/core/expression.hpp>
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#include <boost/phoenix/core/meta_grammar.hpp>
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#include <boost/phoenix/object/detail/target.hpp>
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#include <boost/phoenix/support/iterate.hpp>
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#include <boost/preprocessor/repetition/repeat_from_to.hpp>
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#ifdef BOOST_PHOENIX_NO_VARIADIC_EXPRESSION
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# include <boost/phoenix/object/detail/cpp03/construct_expr.hpp>
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#else
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BOOST_PHOENIX_DEFINE_EXPRESSION_VARARG(
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(boost)(phoenix)(construct)
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, (proto::terminal<detail::target<proto::_> >)
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(meta_grammar)
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, _
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)
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#endif
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namespace boost { namespace phoenix
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{
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struct construct_eval
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{
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template <typename Sig>
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struct result;
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#if defined(BOOST_PHOENIX_NO_VARIADIC_OBJECT)
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template <typename This, typename A0, typename Context>
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struct result<This(A0, Context)>
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: detail::result_of::target<A0>
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{
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};
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template <typename Target, typename Context>
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typename detail::result_of::target<Target>::type
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operator()(Target, Context const &) const
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{
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return typename detail::result_of::target<Target>::type();
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}
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// Bring in the rest
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#include <boost/phoenix/object/detail/cpp03/construct_eval.hpp>
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#else
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// TODO:
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#endif
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};
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template <typename Dummy>
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struct default_actions::when<rule::construct, Dummy>
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: call<construct_eval, Dummy>
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{};
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#if defined(BOOST_PHOENIX_NO_VARIADIC_OBJECT)
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template <typename T>
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inline
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typename expression::construct<detail::target<T> >::type const
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construct()
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{
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return
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expression::
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construct<detail::target<T> >::
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make(detail::target<T>());
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}
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// Bring in the rest
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#include <boost/phoenix/object/detail/cpp03/construct.hpp>
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#else
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// TODO:
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#endif
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}}
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#endif
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