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Diffstat (limited to '3rdParty/Boost/src/boost/proto/detail/basic_expr.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/proto/detail/basic_expr.hpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/detail/basic_expr.hpp b/3rdParty/Boost/src/boost/proto/detail/basic_expr.hpp new file mode 100644 index 0000000..51c4d95 --- /dev/null +++ b/3rdParty/Boost/src/boost/proto/detail/basic_expr.hpp @@ -0,0 +1,185 @@ +#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) + + #include <boost/proto/detail/preprocessed/basic_expr.hpp> + +#elif !defined(BOOST_PP_IS_ITERATING) + + /// INTERNAL ONLY + /// + #define BOOST_PROTO_CHILD(Z, N, DATA) \ + typedef BOOST_PP_CAT(Arg, N) BOOST_PP_CAT(proto_child, N); \ + BOOST_PP_CAT(proto_child, N) BOOST_PP_CAT(child, N); \ + /**< INTERNAL ONLY */ + + /// INTERNAL ONLY + /// + #define BOOST_PROTO_VOID(Z, N, DATA) \ + typedef void BOOST_PP_CAT(proto_child, N); \ + /**< INTERNAL ONLY */ + + #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) + #pragma wave option(preserve: 2, line: 0, output: "preprocessed/basic_expr.hpp") + #endif + + /////////////////////////////////////////////////////////////////////////////// + /// \file basic_expr.hpp + /// Contains definition of basic_expr\<\> class template. + // + // Copyright 2008 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) + + #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) + #pragma wave option(preserve: 1) + #endif + + // The expr<> specializations are actually defined here. + #define BOOST_PROTO_DEFINE_TERMINAL + #define BOOST_PP_ITERATION_PARAMS_1 (3, (0, 0, <boost/proto/detail/basic_expr.hpp>)) + #include BOOST_PP_ITERATE() + + #undef BOOST_PROTO_DEFINE_TERMINAL + #define BOOST_PP_ITERATION_PARAMS_1 (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/basic_expr.hpp>)) + #include BOOST_PP_ITERATE() + + #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) + #pragma wave option(output: null) + #endif + + #undef BOOST_PROTO_CHILD + #undef BOOST_PROTO_VOID + +#else + + #define ARG_COUNT BOOST_PP_MAX(1, BOOST_PP_ITERATION()) + + /// \brief Simplified representation of a node in an expression tree. + /// + /// \c proto::basic_expr\<\> is a node in an expression template tree. It + /// is a container for its child sub-trees. It also serves as + /// the terminal nodes of the tree. + /// + /// \c Tag is type that represents the operation encoded by + /// this expression. It is typically one of the structs + /// in the \c boost::proto::tag namespace, but it doesn't + /// have to be. + /// + /// \c Args is a type list representing the type of the children + /// of this expression. It is an instantiation of one + /// of \c proto::list1\<\>, \c proto::list2\<\>, etc. The + /// child types must all themselves be either \c expr\<\> + /// or <tt>proto::expr\<\>&</tt>. If \c Args is an + /// instantiation of \c proto::term\<\> then this + /// \c expr\<\> type represents a terminal expression; + /// the parameter to the \c proto::term\<\> template + /// represents the terminal's value type. + /// + /// \c Arity is an integral constant representing the number of child + /// nodes this node contains. If \c Arity is 0, then this + /// node is a terminal. + /// + /// \c proto::basic_expr\<\> is a valid Fusion random-access sequence, where + /// the elements of the sequence are the child expressions. + #ifdef BOOST_PROTO_DEFINE_TERMINAL + template<typename Tag, typename Arg0> + struct basic_expr<Tag, term<Arg0>, 0> + #else + template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(ARG_COUNT, typename Arg)> + struct basic_expr<Tag, BOOST_PP_CAT(list, BOOST_PP_ITERATION())<BOOST_PP_ENUM_PARAMS(ARG_COUNT, Arg)>, BOOST_PP_ITERATION() > + #endif + { + typedef Tag proto_tag; + static const long proto_arity_c = BOOST_PP_ITERATION(); + typedef mpl::long_<BOOST_PP_ITERATION() > proto_arity; + typedef basic_expr proto_base_expr; + #ifdef BOOST_PROTO_DEFINE_TERMINAL + typedef term<Arg0> proto_args; + #else + typedef BOOST_PP_CAT(list, BOOST_PP_ITERATION())<BOOST_PP_ENUM_PARAMS(ARG_COUNT, Arg)> proto_args; + #endif + typedef basic_expr proto_grammar; + typedef basic_default_domain proto_domain; + typedef default_generator proto_generator; + typedef proto::tag::proto_expr<Tag, proto_domain> fusion_tag; + typedef basic_expr proto_derived_expr; + typedef void proto_is_expr_; /**< INTERNAL ONLY */ + + BOOST_PP_REPEAT(ARG_COUNT, BOOST_PROTO_CHILD, ~) + BOOST_PP_REPEAT_FROM_TO(ARG_COUNT, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_VOID, ~) + + /// \return *this + /// + BOOST_FORCEINLINE + basic_expr const &proto_base() const + { + return *this; + } + + /// \overload + /// + BOOST_FORCEINLINE + basic_expr &proto_base() + { + return *this; + } + + #ifdef BOOST_PROTO_DEFINE_TERMINAL + /// \return A new \c expr\<\> object initialized with the specified + /// arguments. + /// + template<typename A0> + BOOST_FORCEINLINE + static basic_expr const make(A0 &a0) + { + return detail::make_terminal(a0, static_cast<basic_expr *>(0), static_cast<proto_args *>(0)); + } + + /// \overload + /// + template<typename A0> + BOOST_FORCEINLINE + static basic_expr const make(A0 const &a0) + { + return detail::make_terminal(a0, static_cast<basic_expr *>(0), static_cast<proto_args *>(0)); + } + #else + /// \return A new \c expr\<\> object initialized with the specified + /// arguments. + /// + template<BOOST_PP_ENUM_PARAMS(ARG_COUNT, typename A)> + BOOST_FORCEINLINE + static basic_expr const make(BOOST_PP_ENUM_BINARY_PARAMS(ARG_COUNT, A, const &a)) + { + basic_expr that = {BOOST_PP_ENUM_PARAMS(ARG_COUNT, a)}; + return that; + } + #endif + + #if 1 == BOOST_PP_ITERATION() + /// If \c Tag is \c boost::proto::tag::address_of and \c proto_child0 is + /// <tt>T&</tt>, then \c address_of_hack_type_ is <tt>T*</tt>. + /// Otherwise, it is some undefined type. + typedef typename detail::address_of_hack<Tag, proto_child0>::type address_of_hack_type_; + + /// \return The address of <tt>this->child0</tt> if \c Tag is + /// \c boost::proto::tag::address_of. Otherwise, this function will + /// fail to compile. + /// + /// \attention Proto overloads <tt>operator&</tt>, which means that + /// proto-ified objects cannot have their addresses taken, unless we use + /// the following hack to make \c &x implicitly convertible to \c X*. + BOOST_FORCEINLINE + operator address_of_hack_type_() const + { + return boost::addressof(this->child0); + } + #else + /// INTERNAL ONLY + /// + typedef detail::not_a_valid_type address_of_hack_type_; + #endif + }; + +#undef ARG_COUNT + +#endif |