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Diffstat (limited to '3rdParty/Boost/src/boost/proto/detail/as_expr.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/proto/detail/as_expr.hpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/detail/as_expr.hpp b/3rdParty/Boost/src/boost/proto/detail/as_expr.hpp new file mode 100644 index 0000000..fb46576 --- /dev/null +++ b/3rdParty/Boost/src/boost/proto/detail/as_expr.hpp @@ -0,0 +1,187 @@ +/////////////////////////////////////////////////////////////////////////////// +/// \file as_expr.hpp +/// Contains definition of the as_expr\<\> and as_child\<\> helper class +/// templates used to implement proto::domain's as_expr\<\> and as_child\<\> +/// member templates. +// +// Copyright 2010 Eric Niebler. 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 BOOST_PROTO_DETAIL_AS_EXPR_HPP_EAN_06_09_2010 +#define BOOST_PROTO_DETAIL_AS_EXPR_HPP_EAN_06_09_2010 + +#include <boost/config.hpp> +#include <boost/detail/workaround.hpp> +#include <boost/type_traits/remove_const.hpp> +#include <boost/proto/proto_fwd.hpp> +#include <boost/proto/args.hpp> + +#if defined(_MSC_VER) && (_MSC_VER >= 1020) +# pragma warning(push) +# pragma warning(disable : 4714) // function 'xxx' marked as __forceinline not inlined +#endif + +namespace boost { namespace proto { namespace detail +{ + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename Generator> + struct base_generator + { + typedef Generator type; + }; + + template<typename Generator> + struct base_generator<use_basic_expr<Generator> > + { + typedef Generator type; + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T, typename Generator, bool WantsBasicExpr> + struct as_expr; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T, typename Generator> + struct as_expr<T, Generator, false> + { + typedef typename term_traits<T &>::value_type value_type; + typedef proto::expr<proto::tag::terminal, term<value_type>, 0> expr_type; + typedef typename Generator::template result<Generator(expr_type)>::type result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return Generator()(expr_type::make(t)); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T, typename Generator> + struct as_expr<T, Generator, true> + { + typedef typename term_traits<T &>::value_type value_type; + typedef proto::basic_expr<proto::tag::terminal, term<value_type>, 0> expr_type; + typedef typename Generator::template result<Generator(expr_type)>::type result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return Generator()(expr_type::make(t)); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T> + struct as_expr<T, proto::default_generator, false> + { + typedef typename term_traits<T &>::value_type value_type; + typedef proto::expr<proto::tag::terminal, term<value_type>, 0> result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return result_type::make(t); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T> + struct as_expr<T, proto::default_generator, true> + { + typedef typename term_traits<T &>::value_type value_type; + typedef proto::basic_expr<proto::tag::terminal, term<value_type>, 0> result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return result_type::make(t); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T, typename Generator, bool WantsBasicExpr> + struct as_child; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T, typename Generator> + struct as_child<T, Generator, false> + { + #if BOOST_WORKAROUND(BOOST_MSVC, == 1310) + typedef typename term_traits<T &>::reference reference; + #else + typedef T &reference; + #endif + typedef proto::expr<proto::tag::terminal, term<reference>, 0> expr_type; + typedef typename Generator::template result<Generator(expr_type)>::type result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return Generator()(expr_type::make(t)); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T, typename Generator> + struct as_child<T, Generator, true> + { + #if BOOST_WORKAROUND(BOOST_MSVC, == 1310) + typedef typename term_traits<T &>::reference reference; + #else + typedef T &reference; + #endif + typedef proto::basic_expr<proto::tag::terminal, term<reference>, 0> expr_type; + typedef typename Generator::template result<Generator(expr_type)>::type result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return Generator()(expr_type::make(t)); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T> + struct as_child<T, proto::default_generator, false> + { + #if BOOST_WORKAROUND(BOOST_MSVC, == 1310) + typedef typename term_traits<T &>::reference reference; + #else + typedef T &reference; + #endif + typedef proto::expr<proto::tag::terminal, term<reference>, 0> result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return result_type::make(t); + } + }; + + //////////////////////////////////////////////////////////////////////////////////////////////// + template<typename T> + struct as_child<T, proto::default_generator, true> + { + #if BOOST_WORKAROUND(BOOST_MSVC, == 1310) + typedef typename term_traits<T &>::reference reference; + #else + typedef T &reference; + #endif + typedef proto::basic_expr<proto::tag::terminal, term<reference>, 0> result_type; + + BOOST_FORCEINLINE + result_type operator()(T &t) const + { + return result_type::make(t); + } + }; + +}}} + +#if defined(_MSC_VER) && (_MSC_VER >= 1020) +# pragma warning(pop) +#endif + +#endif |