| #ifndef BOOST_PP_IS_ITERATING |
| /////////////////////////////////////////////////////////////////////////////// |
| /// \file default.hpp |
| /// Contains definition of the _default transform, which gives operators their |
| /// usual C++ meanings and uses Boost.Typeof to deduce return types. |
| // |
| // 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) |
| |
| #ifndef BOOST_PROTO_TRANSFORM_DEFAULT_HPP_EAN_04_04_2008 |
| #define BOOST_PROTO_TRANSFORM_DEFAULT_HPP_EAN_04_04_2008 |
| |
| #include <boost/preprocessor/iteration/iterate.hpp> |
| #include <boost/preprocessor/repetition/repeat.hpp> |
| #include <boost/preprocessor/arithmetic/add.hpp> |
| #include <boost/preprocessor/arithmetic/sub.hpp> |
| #include <boost/preprocessor/repetition/enum.hpp> |
| #include <boost/preprocessor/repetition/enum_shifted.hpp> |
| #include <boost/preprocessor/repetition/enum_shifted_params.hpp> |
| #include <boost/ref.hpp> |
| #include <boost/get_pointer.hpp> |
| #include <boost/utility/enable_if.hpp> |
| #include <boost/type_traits/is_member_pointer.hpp> |
| #include <boost/type_traits/is_member_object_pointer.hpp> |
| #include <boost/type_traits/is_member_function_pointer.hpp> |
| #include <boost/proto/proto_fwd.hpp> |
| #include <boost/proto/traits.hpp> |
| #include <boost/proto/transform/impl.hpp> |
| #include <boost/proto/transform/arg.hpp> |
| #include <boost/proto/detail/decltype.hpp> |
| |
| namespace boost { namespace proto |
| { |
| namespace detail |
| { |
| template<typename Grammar, typename Tag> |
| struct default_case |
| : not_<_> |
| {}; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::terminal> |
| : when<terminal<_>, _value> |
| {}; |
| |
| template<typename Grammar> |
| struct default_cases |
| { |
| template<typename Tag> |
| struct case_ |
| : default_case<Grammar, Tag> |
| {}; |
| }; |
| |
| #define BOOST_PROTO_UNARY_DEFAULT_EVAL(OP, TAG, MAKE) \ |
| template<typename Grammar> \ |
| struct BOOST_PP_CAT(default_, TAG) \ |
| : transform<BOOST_PP_CAT(default_, TAG)<Grammar> > \ |
| { \ |
| template<typename Expr, typename State, typename Data> \ |
| struct impl \ |
| : transform_impl<Expr, State, Data> \ |
| { \ |
| private: \ |
| typedef typename result_of::child_c<Expr, 0>::type e0; \ |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; \ |
| public: \ |
| BOOST_PROTO_DECLTYPE_(OP proto::detail::MAKE<r0>(), result_type) \ |
| result_type operator ()( \ |
| typename impl::expr_param e \ |
| , typename impl::state_param s \ |
| , typename impl::data_param d \ |
| ) const \ |
| { \ |
| typename Grammar::template impl<e0, State, Data> t0; \ |
| return OP t0(proto::child_c<0>(e), s, d); \ |
| } \ |
| }; \ |
| }; \ |
| \ |
| template<typename Grammar> \ |
| struct default_case<Grammar, tag::TAG> \ |
| : when<unary_expr<tag::TAG, Grammar>, BOOST_PP_CAT(default_, TAG)<Grammar> > \ |
| {}; \ |
| /**/ |
| |
| #define BOOST_PROTO_BINARY_DEFAULT_EVAL(OP, TAG, LMAKE, RMAKE) \ |
| template<typename Grammar> \ |
| struct BOOST_PP_CAT(default_, TAG) \ |
| : transform<BOOST_PP_CAT(default_, TAG)<Grammar> > \ |
| { \ |
| template<typename Expr, typename State, typename Data> \ |
| struct impl \ |
| : transform_impl<Expr, State, Data> \ |
| { \ |
| private: \ |
| typedef typename result_of::child_c<Expr, 0>::type e0; \ |
| typedef typename result_of::child_c<Expr, 1>::type e1; \ |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; \ |
| typedef typename Grammar::template impl<e1, State, Data>::result_type r1; \ |
| public: \ |
| BOOST_PROTO_DECLTYPE_( \ |
| proto::detail::LMAKE<r0>() OP proto::detail::RMAKE<r1>() \ |
| , result_type \ |
| ) \ |
| result_type operator ()( \ |
| typename impl::expr_param e \ |
| , typename impl::state_param s \ |
| , typename impl::data_param d \ |
| ) const \ |
| { \ |
| typename Grammar::template impl<e0, State, Data> t0; \ |
| typename Grammar::template impl<e1, State, Data> t1; \ |
| return t0(proto::child_c<0>(e), s, d) \ |
| OP t1(proto::child_c<1>(e), s, d); \ |
| } \ |
| }; \ |
| }; \ |
| \ |
| template<typename Grammar> \ |
| struct default_case<Grammar, tag::TAG> \ |
| : when<binary_expr<tag::TAG, Grammar, Grammar>, BOOST_PP_CAT(default_, TAG)<Grammar> > \ |
| {}; \ |
| /**/ |
| |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(+, unary_plus, make) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(-, negate, make) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(*, dereference, make) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(~, complement, make) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(&, address_of, make) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(!, logical_not, make) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(++, pre_inc, make_mutable) |
| BOOST_PROTO_UNARY_DEFAULT_EVAL(--, pre_dec, make_mutable) |
| |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(<<, shift_left, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(>>, shift_right, make_mutable, make_mutable) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(*, multiplies, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(/, divides, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(%, modulus, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(+, plus, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(-, minus, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(<, less, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(>, greater, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(<=, less_equal, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(>=, greater_equal, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(==, equal_to, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(!=, not_equal_to, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(||, logical_or, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(&&, logical_and, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(&, bitwise_and, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(|, bitwise_or, make, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(^, bitwise_xor, make, make) |
| |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(=, assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(<<=, shift_left_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(>>=, shift_right_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(*=, multiplies_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(/=, divides_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(%=, modulus_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(+=, plus_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(-=, minus_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(&=, bitwise_and_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(|=, bitwise_or_assign, make_mutable, make) |
| BOOST_PROTO_BINARY_DEFAULT_EVAL(^=, bitwise_xor_assign, make_mutable, make) |
| |
| #undef BOOST_PROTO_UNARY_DEFAULT_EVAL |
| #undef BOOST_PROTO_BINARY_DEFAULT_EVAL |
| |
| /// INTERNAL ONLY |
| template<typename Grammar, typename Expr, typename State, typename Data> |
| struct is_member_function_invocation |
| : is_member_function_pointer< |
| typename uncvref< |
| typename Grammar::template impl< |
| typename result_of::child_c<Expr, 1>::type |
| , State |
| , Data |
| >::result_type |
| >::type |
| > |
| {}; |
| |
| /// INTERNAL ONLY |
| template<typename Grammar, typename Expr, typename State, typename Data, bool IsMemFunCall> |
| struct default_mem_ptr_impl |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename result_of::child_c<Expr, 1>::type e1; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| typedef typename Grammar::template impl<e1, State, Data>::result_type r1; |
| public: |
| typedef typename detail::mem_ptr_fun<r0, r1>::result_type result_type; |
| result_type operator ()( |
| typename default_mem_ptr_impl::expr_param e |
| , typename default_mem_ptr_impl::state_param s |
| , typename default_mem_ptr_impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| typename Grammar::template impl<e1, State, Data> t1; |
| return detail::mem_ptr_fun<r0, r1>()( |
| t0(proto::child_c<0>(e), s, d) |
| , t1(proto::child_c<1>(e), s, d) |
| ); |
| } |
| }; |
| |
| /// INTERNAL ONLY |
| template<typename Grammar, typename Expr, typename State, typename Data> |
| struct default_mem_ptr_impl<Grammar, Expr, State, Data, true> |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename result_of::child_c<Expr, 1>::type e1; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| typedef typename Grammar::template impl<e1, State, Data>::result_type r1; |
| public: |
| typedef detail::memfun<r0, r1> result_type; |
| result_type const operator ()( |
| typename default_mem_ptr_impl::expr_param e |
| , typename default_mem_ptr_impl::state_param s |
| , typename default_mem_ptr_impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| typename Grammar::template impl<e1, State, Data> t1; |
| return detail::memfun<r0, r1>( |
| t0(proto::child_c<0>(e), s, d) |
| , t1(proto::child_c<1>(e), s, d) |
| ); |
| } |
| }; |
| |
| template<typename Grammar> |
| struct default_mem_ptr |
| : transform<default_mem_ptr<Grammar> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : default_mem_ptr_impl< |
| Grammar |
| , Expr |
| , State |
| , Data |
| , is_member_function_invocation<Grammar, Expr, State, Data>::value |
| > |
| {}; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::mem_ptr> |
| : when<mem_ptr<Grammar, Grammar>, default_mem_ptr<Grammar> > |
| {}; |
| |
| template<typename Grammar> |
| struct default_post_inc |
| : transform<default_post_inc<Grammar> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| public: |
| BOOST_PROTO_DECLTYPE_(proto::detail::make_mutable<r0>() ++, result_type) |
| result_type operator ()( |
| typename impl::expr_param e |
| , typename impl::state_param s |
| , typename impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| return t0(proto::child_c<0>(e), s, d) ++; |
| } |
| }; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::post_inc> |
| : when<post_inc<Grammar>, default_post_inc<Grammar> > |
| {}; |
| |
| template<typename Grammar> |
| struct default_post_dec |
| : transform<default_post_dec<Grammar> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| public: |
| BOOST_PROTO_DECLTYPE_(proto::detail::make_mutable<r0>() --, result_type) |
| result_type operator ()( |
| typename impl::expr_param e |
| , typename impl::state_param s |
| , typename impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| return t0(proto::child_c<0>(e), s, d) --; |
| } |
| }; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::post_dec> |
| : when<post_dec<Grammar>, default_post_dec<Grammar> > |
| {}; |
| |
| template<typename Grammar> |
| struct default_subscript |
| : transform<default_subscript<Grammar> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename result_of::child_c<Expr, 1>::type e1; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| typedef typename Grammar::template impl<e1, State, Data>::result_type r1; |
| public: |
| BOOST_PROTO_DECLTYPE_( |
| proto::detail::make_subscriptable<r0>() [ proto::detail::make<r1>() ] |
| , result_type |
| ) |
| result_type operator ()( |
| typename impl::expr_param e |
| , typename impl::state_param s |
| , typename impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| typename Grammar::template impl<e1, State, Data> t1; |
| return t0(proto::child_c<0>(e), s, d) [ |
| t1(proto::child_c<1>(e), s, d) ]; |
| } |
| }; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::subscript> |
| : when<subscript<Grammar, Grammar>, default_subscript<Grammar> > |
| {}; |
| |
| template<typename Grammar> |
| struct default_if_else_ |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename result_of::child_c<Expr, 1>::type e1; |
| typedef typename result_of::child_c<Expr, 2>::type e2; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| typedef typename Grammar::template impl<e1, State, Data>::result_type r1; |
| typedef typename Grammar::template impl<e2, State, Data>::result_type r2; |
| public: |
| BOOST_PROTO_DECLTYPE_( |
| proto::detail::make<r0>() |
| ? proto::detail::make<r1>() |
| : proto::detail::make<r2>() |
| , result_type |
| ) |
| result_type operator ()( |
| typename impl::expr_param e |
| , typename impl::state_param s |
| , typename impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| typename Grammar::template impl<e1, State, Data> t1; |
| typename Grammar::template impl<e2, State, Data> t2; |
| return t0(proto::child_c<0>(e), s, d) |
| ? t1(proto::child_c<1>(e), s, d) |
| : t2(proto::child_c<2>(e), s, d); |
| } |
| }; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::if_else_> |
| : when<if_else_<Grammar, Grammar, Grammar>, default_if_else_<Grammar> > |
| {}; |
| |
| template<typename Grammar> |
| struct default_comma |
| : transform<default_comma<Grammar> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : transform_impl<Expr, State, Data> |
| { |
| private: |
| typedef typename result_of::child_c<Expr, 0>::type e0; |
| typedef typename result_of::child_c<Expr, 1>::type e1; |
| typedef typename Grammar::template impl<e0, State, Data>::result_type r0; |
| typedef typename Grammar::template impl<e1, State, Data>::result_type r1; |
| public: |
| typedef typename proto::detail::comma_result<r0, r1>::type result_type; |
| result_type operator ()( |
| typename impl::expr_param e |
| , typename impl::state_param s |
| , typename impl::data_param d |
| ) const |
| { |
| typename Grammar::template impl<e0, State, Data> t0; |
| typename Grammar::template impl<e1, State, Data> t1; |
| return t0(proto::child_c<0>(e), s, d) |
| , t1(proto::child_c<1>(e), s, d); |
| } |
| }; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::comma> |
| : when<comma<Grammar, Grammar>, default_comma<Grammar> > |
| {}; |
| |
| template<typename Grammar, typename Expr, typename State, typename Data, long Arity> |
| struct default_function_impl; |
| |
| template<typename Grammar> |
| struct default_function |
| : transform<default_function<Grammar> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : default_function_impl< |
| Grammar |
| , Expr |
| , State |
| , Data |
| , transform_impl<Expr, State, Data>::expr::proto_arity_c |
| > |
| {}; |
| }; |
| |
| template<typename Grammar> |
| struct default_case<Grammar, tag::function> |
| : when<function<Grammar, vararg<Grammar> >, default_function<Grammar> > |
| {}; |
| |
| #define BOOST_PROTO_DEFAULT_EVAL_TYPE(Z, N, DATA) \ |
| typedef \ |
| typename result_of::child_c<DATA, N>::type \ |
| BOOST_PP_CAT(e, N); \ |
| \ |
| typedef \ |
| typename Grammar::template impl<BOOST_PP_CAT(e, N), State, Data>::result_type \ |
| BOOST_PP_CAT(r, N); \ |
| /**/ |
| |
| #define BOOST_PROTO_DEFAULT_EVAL(Z, N, DATA) \ |
| typename Grammar::template impl<BOOST_PP_CAT(e, N), State, Data>()( \ |
| proto::child_c<N>(DATA), s, d \ |
| ) \ |
| /**/ |
| |
| template<typename Grammar, typename Expr, typename State, typename Data> |
| struct default_function_impl<Grammar, Expr, State, Data, 1> |
| : transform_impl<Expr, State, Data> |
| { |
| BOOST_PROTO_DEFAULT_EVAL_TYPE(~, 0, Expr) |
| |
| typedef |
| typename proto::detail::result_of_fixup<r0>::type |
| function_type; |
| |
| typedef |
| typename boost::tr1_result_of<function_type()>::type |
| result_type; |
| |
| result_type operator ()( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| ) const |
| { |
| return BOOST_PROTO_DEFAULT_EVAL(~, 0, e)(); |
| } |
| }; |
| |
| template<typename Grammar, typename Expr, typename State, typename Data> |
| struct default_function_impl<Grammar, Expr, State, Data, 2> |
| : transform_impl<Expr, State, Data> |
| { |
| BOOST_PROTO_DEFAULT_EVAL_TYPE(~, 0, Expr) |
| BOOST_PROTO_DEFAULT_EVAL_TYPE(~, 1, Expr) |
| |
| typedef |
| typename proto::detail::result_of_fixup<r0>::type |
| function_type; |
| |
| typedef |
| typename detail::result_of_<function_type(r1)>::type |
| result_type; |
| |
| result_type operator ()( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| ) const |
| { |
| return this->invoke( |
| e |
| , s |
| , d |
| , is_member_function_pointer<function_type>() |
| , is_member_object_pointer<function_type>() |
| ); |
| } |
| |
| private: |
| result_type invoke( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| , mpl::false_ |
| , mpl::false_ |
| ) const |
| { |
| return BOOST_PROTO_DEFAULT_EVAL(~, 0, e)(BOOST_PROTO_DEFAULT_EVAL(~, 1, e)); |
| } |
| |
| result_type invoke( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| , mpl::true_ |
| , mpl::false_ |
| ) const |
| { |
| BOOST_PROTO_USE_GET_POINTER(); |
| typedef typename detail::classtypeof<function_type>::type class_type; |
| return ( |
| BOOST_PROTO_GET_POINTER(class_type, BOOST_PROTO_DEFAULT_EVAL(~, 1, e)) ->* |
| BOOST_PROTO_DEFAULT_EVAL(~, 0, e) |
| )(); |
| } |
| |
| result_type invoke( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| , mpl::false_ |
| , mpl::true_ |
| ) const |
| { |
| BOOST_PROTO_USE_GET_POINTER(); |
| typedef typename detail::classtypeof<function_type>::type class_type; |
| return ( |
| BOOST_PROTO_GET_POINTER(class_type, BOOST_PROTO_DEFAULT_EVAL(~, 1, e)) ->* |
| BOOST_PROTO_DEFAULT_EVAL(~, 0, e) |
| ); |
| } |
| }; |
| |
| #define BOOST_PP_ITERATION_PARAMS_1 (3, (3, BOOST_PROTO_MAX_ARITY, <boost/proto/transform/default.hpp>)) |
| #include BOOST_PP_ITERATE() |
| |
| #undef BOOST_PROTO_DEFAULT_EVAL_TYPE |
| #undef BOOST_PROTO_DEFAULT_EVAL |
| } |
| |
| template<typename Grammar /*= detail::_default*/> |
| struct _default |
| : switch_<detail::default_cases<Grammar> > |
| {}; |
| |
| template<typename Grammar> |
| struct is_callable<_default<Grammar> > |
| : mpl::true_ |
| {}; |
| |
| namespace detail |
| { |
| // Loopy indirection that allows proto::_default<> to be |
| // used without specifying a Grammar argument. |
| struct _default |
| : proto::_default<> |
| {}; |
| } |
| |
| }} |
| |
| #endif |
| |
| #else |
| |
| #define N BOOST_PP_ITERATION() |
| |
| template<typename Grammar, typename Expr, typename State, typename Data> |
| struct default_function_impl<Grammar, Expr, State, Data, N> |
| : transform_impl<Expr, State, Data> |
| { |
| BOOST_PP_REPEAT(N, BOOST_PROTO_DEFAULT_EVAL_TYPE, Expr) |
| |
| typedef |
| typename proto::detail::result_of_fixup<r0>::type |
| function_type; |
| |
| typedef |
| typename boost::tr1_result_of< |
| function_type(BOOST_PP_ENUM_SHIFTED_PARAMS(N, r)) |
| >::type |
| result_type; |
| |
| result_type operator ()( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| ) const |
| { |
| return this->invoke(e, s, d, is_member_function_pointer<function_type>()); |
| } |
| |
| private: |
| result_type invoke( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| , mpl::false_ |
| ) const |
| { |
| return BOOST_PROTO_DEFAULT_EVAL(~, 0, e)( |
| BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL, e) |
| ); |
| } |
| |
| result_type invoke( |
| typename default_function_impl::expr_param e |
| , typename default_function_impl::state_param s |
| , typename default_function_impl::data_param d |
| , mpl::true_ |
| ) const |
| { |
| #define M0(Z, M, DATA) BOOST_PROTO_DEFAULT_EVAL(Z, BOOST_PP_ADD(M, 2), DATA) |
| BOOST_PROTO_USE_GET_POINTER(); |
| typedef typename detail::classtypeof<function_type>::type class_type; |
| return ( |
| BOOST_PROTO_GET_POINTER(class_type, BOOST_PROTO_DEFAULT_EVAL(~, 1, e)) ->* |
| BOOST_PROTO_DEFAULT_EVAL(~, 0, e) |
| )(BOOST_PP_ENUM(BOOST_PP_SUB(N, 2), M0, e)); |
| #undef M0 |
| } |
| }; |
| |
| #undef N |
| |
| #endif |