Imported existing code
This commit is contained in:
Hazim Gazov
525
libraries/include/boost/proto/transform/default.hpp
Normal file
525
libraries/include/boost/proto/transform/default.hpp
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@@ -0,0 +1,525 @@
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#ifndef BOOST_PP_IS_ITERATING
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///////////////////////////////////////////////////////////////////////////////
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/// \file default.hpp
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/// Contains definition of the _default transform, which gives operators their
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/// usual C++ meanings and uses Boost.Typeof to deduce return types.
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//
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// Copyright 2008 Eric Niebler. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PROTO_TRANSFORM_DEFAULT_HPP_EAN_04_04_2008
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#define BOOST_PROTO_TRANSFORM_DEFAULT_HPP_EAN_04_04_2008
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#include <boost/proto/detail/prefix.hpp>
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#include <boost/preprocessor/iteration/iterate.hpp>
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#include <boost/preprocessor/repetition/repeat.hpp>
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#include <boost/preprocessor/repetition/enum_shifted.hpp>
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#include <boost/preprocessor/repetition/enum_shifted_params.hpp>
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#include <boost/ref.hpp>
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#include <boost/get_pointer.hpp>
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#include <boost/utility/enable_if.hpp>
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#include <boost/type_traits/is_member_pointer.hpp>
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#include <boost/type_traits/is_member_object_pointer.hpp>
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#include <boost/type_traits/is_member_function_pointer.hpp>
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#include <boost/proto/proto_fwd.hpp>
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#include <boost/proto/traits.hpp>
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#include <boost/proto/transform/impl.hpp>
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#include <boost/proto/transform/arg.hpp>
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#include <boost/proto/detail/decltype.hpp>
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#include <boost/proto/detail/suffix.hpp>
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namespace boost { namespace proto
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{
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template<typename Grammar>
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struct _default
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: transform<_default<Grammar> >
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{
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template<typename Expr, typename State, typename Data, typename Tag, long Arity>
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struct impl2;
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template<typename Expr, typename State, typename Data, typename Tag>
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struct impl2<Expr, State, Data, Tag, 0>
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: _value::impl<Expr, State, Data>
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{};
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#define BOOST_PROTO_UNARY_OP_RESULT(OP, TAG, MAKE) \
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template<typename Expr, typename State, typename Data> \
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struct impl2<Expr, State, Data, TAG, 1> \
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: transform_impl<Expr, State, Data> \
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{ \
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private: \
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typedef typename result_of::child_c<Expr, 0>::type e0; \
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0; \
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public: \
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BOOST_PROTO_DECLTYPE_(OP proto::detail::MAKE<r0>(), result_type) \
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result_type operator ()( \
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typename impl2::expr_param e \
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, typename impl2::state_param s \
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, typename impl2::data_param d \
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) const \
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{ \
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typename Grammar::template impl<e0, State, Data> t0; \
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return OP t0(proto::child_c<0>(e), s, d); \
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} \
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}; \
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/**/
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#define BOOST_PROTO_BINARY_OP_RESULT(OP, TAG, LMAKE, RMAKE) \
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template<typename Expr, typename State, typename Data> \
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struct impl2<Expr, State, Data, TAG, 2> \
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: transform_impl<Expr, State, Data> \
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{ \
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private: \
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typedef typename result_of::child_c<Expr, 0>::type e0; \
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typedef typename result_of::child_c<Expr, 1>::type e1; \
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0; \
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1; \
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public: \
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BOOST_PROTO_DECLTYPE_( \
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proto::detail::LMAKE<r0>() OP proto::detail::RMAKE<r1>() \
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, result_type \
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) \
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result_type operator ()( \
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typename impl2::expr_param e \
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, typename impl2::state_param s \
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, typename impl2::data_param d \
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) const \
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{ \
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typename Grammar::template impl<e0, State, Data> t0; \
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typename Grammar::template impl<e1, State, Data> t1; \
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return t0(proto::child_c<0>(e), s, d) \
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OP t1(proto::child_c<1>(e), s, d); \
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} \
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}; \
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/**/
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BOOST_PROTO_UNARY_OP_RESULT(+, tag::unary_plus, make)
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BOOST_PROTO_UNARY_OP_RESULT(-, tag::negate, make)
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BOOST_PROTO_UNARY_OP_RESULT(*, tag::dereference, make)
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BOOST_PROTO_UNARY_OP_RESULT(~, tag::complement, make)
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BOOST_PROTO_UNARY_OP_RESULT(&, tag::address_of, make)
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BOOST_PROTO_UNARY_OP_RESULT(!, tag::logical_not, make)
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BOOST_PROTO_UNARY_OP_RESULT(++, tag::pre_inc, make_mutable)
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BOOST_PROTO_UNARY_OP_RESULT(--, tag::pre_dec, make_mutable)
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BOOST_PROTO_BINARY_OP_RESULT(<<, tag::shift_left, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(>>, tag::shift_right, make_mutable, make_mutable)
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BOOST_PROTO_BINARY_OP_RESULT(*, tag::multiplies, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(/, tag::divides, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(%, tag::modulus, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(+, tag::plus, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(-, tag::minus, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(<, tag::less, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(>, tag::greater, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(<=, tag::less_equal, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(>=, tag::greater_equal, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(==, tag::equal_to, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(!=, tag::not_equal_to, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(||, tag::logical_or, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(&&, tag::logical_and, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(&, tag::bitwise_and, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(|, tag::bitwise_or, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(^, tag::bitwise_xor, make, make)
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BOOST_PROTO_BINARY_OP_RESULT(=, tag::assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(<<=, tag::shift_left_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(>>=, tag::shift_right_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(*=, tag::multiplies_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(/=, tag::divides_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(%=, tag::modulus_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(+=, tag::plus_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(-=, tag::minus_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(&=, tag::bitwise_and_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(|=, tag::bitwise_or_assign, make_mutable, make)
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BOOST_PROTO_BINARY_OP_RESULT(^=, tag::bitwise_xor_assign, make_mutable, make)
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#undef BOOST_PROTO_UNARY_OP_RESULT
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#undef BOOST_PROTO_BINARY_OP_RESULT
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/// INTERNAL ONLY
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template<typename Expr, typename State, typename Data>
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struct is_member_function_invocation
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{
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typedef typename result_of::child_c<Expr, 1>::type e1;
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1;
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typedef typename remove_const<typename remove_reference<r1>::type>::type uncvref_r1;
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typedef typename is_member_function_pointer<uncvref_r1>::type type;
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BOOST_STATIC_CONSTANT(bool, value = type::value);
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};
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/// INTERNAL ONLY
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template<typename Expr, typename State, typename Data, bool IsMemFunCall>
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struct memfun_impl
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: transform_impl<Expr, State, Data>
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename result_of::child_c<Expr, 1>::type e1;
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1;
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public:
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typedef typename detail::mem_ptr_fun<r0, r1>::result_type result_type;
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result_type operator ()(
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typename memfun_impl::expr_param e
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, typename memfun_impl::state_param s
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, typename memfun_impl::data_param d
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) const
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{
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typename Grammar::template impl<e0, State, Data> t0;
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typename Grammar::template impl<e1, State, Data> t1;
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return detail::mem_ptr_fun<r0, r1>()(
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t0(proto::child_c<0>(e), s, d)
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, t1(proto::child_c<1>(e), s, d)
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);
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}
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};
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/// INTERNAL ONLY
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template<typename Expr, typename State, typename Data>
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struct memfun_impl<Expr, State, Data, true>
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: transform_impl<Expr, State, Data>
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename result_of::child_c<Expr, 1>::type e1;
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1;
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public:
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typedef detail::memfun<r0, r1> result_type;
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result_type const operator ()(
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typename memfun_impl::expr_param e
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, typename memfun_impl::state_param s
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, typename memfun_impl::data_param d
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) const
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{
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typename Grammar::template impl<e0, State, Data> t0;
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typename Grammar::template impl<e1, State, Data> t1;
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return detail::memfun<r0, r1>(
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t0(proto::child_c<0>(e), s, d)
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, t1(proto::child_c<1>(e), s, d)
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);
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}
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};
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template<typename Expr, typename State, typename Data>
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struct impl2<Expr, State, Data, tag::mem_ptr, 2>
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: memfun_impl<Expr, State, Data, is_member_function_invocation<Expr, State, Data>::value>
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{};
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template<typename Expr, typename State, typename Data>
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struct impl2<Expr, State, Data, tag::post_inc, 1>
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: transform_impl<Expr, State, Data>
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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public:
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BOOST_PROTO_DECLTYPE_(proto::detail::make_mutable<r0>() ++, result_type)
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result_type operator ()(
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typename impl2::expr_param e
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, typename impl2::state_param s
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, typename impl2::data_param d
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) const
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{
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typename Grammar::template impl<e0, State, Data> t0;
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return t0(proto::child_c<0>(e), s, d) ++;
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}
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};
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template<typename Expr, typename State, typename Data>
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struct impl2<Expr, State, Data, tag::post_dec, 1>
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: transform_impl<Expr, State, Data>
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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public:
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BOOST_PROTO_DECLTYPE_(proto::detail::make_mutable<r0>() --, result_type)
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result_type operator ()(
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typename impl2::expr_param e
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, typename impl2::state_param s
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, typename impl2::data_param d
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) const
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{
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typename Grammar::template impl<e0, State, Data> t0;
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return t0(proto::child_c<0>(e), s, d) --;
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}
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};
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template<typename Expr, typename State, typename Data>
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struct impl2<Expr, State, Data, tag::subscript, 2>
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: transform_impl<Expr, State, Data>
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename result_of::child_c<Expr, 1>::type e1;
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1;
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public:
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BOOST_PROTO_DECLTYPE_(
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proto::detail::make_subscriptable<r0>() [ proto::detail::make<r1>() ]
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, result_type
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)
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result_type operator ()(
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typename impl2::expr_param e
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, typename impl2::state_param s
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, typename impl2::data_param d
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) const
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{
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typename Grammar::template impl<e0, State, Data> t0;
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typename Grammar::template impl<e1, State, Data> t1;
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return t0(proto::child_c<0>(e), s, d) [
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t1(proto::child_c<1>(e), s, d) ];
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}
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};
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template<typename Expr, typename State, typename Data>
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struct impl2<Expr, State, Data, tag::if_else_, 3>
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: transform_impl<Expr, State, Data>
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename result_of::child_c<Expr, 1>::type e1;
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typedef typename result_of::child_c<Expr, 2>::type e2;
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1;
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typedef typename Grammar::template impl<e2, State, Data>::result_type r2;
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public:
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BOOST_PROTO_DECLTYPE_(
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proto::detail::make<r0>()
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? proto::detail::make<r1>()
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: proto::detail::make<r2>()
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, result_type
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)
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result_type operator ()(
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typename impl2::expr_param e
|
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, typename impl2::state_param s
|
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, typename impl2::data_param d
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) const
|
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{
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typename Grammar::template impl<e0, State, Data> t0;
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typename Grammar::template impl<e1, State, Data> t1;
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typename Grammar::template impl<e2, State, Data> t2;
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return t0(proto::child_c<0>(e), s, d)
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? t1(proto::child_c<1>(e), s, d)
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: t2(proto::child_c<2>(e), s, d);
|
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}
|
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};
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template<typename Expr, typename State, typename Data>
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struct impl2<Expr, State, Data, tag::comma, 2>
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: transform_impl<Expr, State, Data>
|
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{
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private:
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typedef typename result_of::child_c<Expr, 0>::type e0;
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typedef typename result_of::child_c<Expr, 1>::type e1;
|
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typedef typename Grammar::template impl<e0, State, Data>::result_type r0;
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typedef typename Grammar::template impl<e1, State, Data>::result_type r1;
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public:
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typedef typename proto::detail::comma_result<r0, r1>::type result_type;
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result_type operator ()(
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typename impl2::expr_param e
|
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, typename impl2::state_param s
|
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, typename impl2::data_param d
|
||||
) const
|
||||
{
|
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typename Grammar::template impl<e0, State, Data> t0;
|
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typename Grammar::template impl<e1, State, Data> t1;
|
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return t0(proto::child_c<0>(e), s, d)
|
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, t1(proto::child_c<1>(e), s, d);
|
||||
}
|
||||
};
|
||||
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#define EVAL_TYPE(Z, N, DATA) \
|
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typedef \
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typename result_of::child_c<DATA, N>::type \
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||||
BOOST_PP_CAT(e, N); \
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||||
typedef \
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||||
typename Grammar::template impl<BOOST_PP_CAT(e, N), State, Data>::result_type \
|
||||
BOOST_PP_CAT(r, N); \
|
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/**/
|
||||
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#define EVAL(Z, N, DATA) \
|
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typename Grammar::template impl<BOOST_PP_CAT(e, N), State, Data>()( \
|
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proto::child_c<N>(DATA), s, d \
|
||||
) \
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||||
/**/
|
||||
|
||||
template<typename Expr, typename State, typename Data>
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||||
struct impl2<Expr, State, Data, tag::function, 1>
|
||||
: transform_impl<Expr, State, Data>
|
||||
{
|
||||
EVAL_TYPE(~, 0, Expr)
|
||||
|
||||
typedef
|
||||
typename proto::detail::result_of_fixup<r0>::type
|
||||
function_type;
|
||||
|
||||
typedef
|
||||
typename boost::result_of<function_type()>::type
|
||||
result_type;
|
||||
|
||||
result_type operator ()(
|
||||
typename impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
) const
|
||||
{
|
||||
return EVAL(~, 0, e)();
|
||||
}
|
||||
};
|
||||
|
||||
template<typename Expr, typename State, typename Data>
|
||||
struct impl2<Expr, State, Data, tag::function, 2>
|
||||
: transform_impl<Expr, State, Data>
|
||||
{
|
||||
EVAL_TYPE(~, 0, Expr)
|
||||
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 impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::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 impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
, mpl::false_
|
||||
, mpl::false_
|
||||
) const
|
||||
{
|
||||
return EVAL(~, 0, e)(EVAL(~, 1, e));
|
||||
}
|
||||
|
||||
result_type invoke(
|
||||
typename impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
, mpl::true_
|
||||
, mpl::false_
|
||||
) const
|
||||
{
|
||||
using namespace detail::get_pointer_;
|
||||
return (get_pointer(EVAL(~, 1, e)) ->* EVAL(~, 0, e))();
|
||||
}
|
||||
|
||||
result_type invoke(
|
||||
typename impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
, mpl::false_
|
||||
, mpl::true_
|
||||
) const
|
||||
{
|
||||
using namespace detail::get_pointer_;
|
||||
return (get_pointer(EVAL(~, 1, e)) ->* 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 EVAL_TYPE
|
||||
#undef EVAL
|
||||
|
||||
template<typename Expr, typename State, typename Data>
|
||||
struct impl
|
||||
: impl2<
|
||||
Expr
|
||||
, State
|
||||
, Data
|
||||
, typename transform_impl<Expr, State, Data>::expr::proto_tag
|
||||
, transform_impl<Expr, State, Data>::expr::proto_arity_c
|
||||
>
|
||||
{};
|
||||
};
|
||||
|
||||
template<typename Grammar>
|
||||
struct is_callable<_default<Grammar> >
|
||||
: mpl::true_
|
||||
{};
|
||||
|
||||
}}
|
||||
|
||||
#endif
|
||||
|
||||
#else
|
||||
|
||||
#define N BOOST_PP_ITERATION()
|
||||
|
||||
template<typename Expr, typename State, typename Data>
|
||||
struct impl2<Expr, State, Data, tag::function, N>
|
||||
: transform_impl<Expr, State, Data>
|
||||
{
|
||||
BOOST_PP_REPEAT(N, EVAL_TYPE, Expr)
|
||||
|
||||
typedef
|
||||
typename proto::detail::result_of_fixup<r0>::type
|
||||
function_type;
|
||||
|
||||
typedef
|
||||
typename boost::result_of<
|
||||
function_type(BOOST_PP_ENUM_SHIFTED_PARAMS(N, r))
|
||||
>::type
|
||||
result_type;
|
||||
|
||||
result_type operator ()(
|
||||
typename impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
) const
|
||||
{
|
||||
return this->invoke(e, s, d, is_member_function_pointer<function_type>());
|
||||
}
|
||||
|
||||
private:
|
||||
result_type invoke(
|
||||
typename impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
, mpl::false_
|
||||
) const
|
||||
{
|
||||
return EVAL(~, 0, e)(BOOST_PP_ENUM_SHIFTED(N, EVAL, e));
|
||||
}
|
||||
|
||||
result_type invoke(
|
||||
typename impl2::expr_param e
|
||||
, typename impl2::state_param s
|
||||
, typename impl2::data_param d
|
||||
, mpl::true_
|
||||
) const
|
||||
{
|
||||
#define M0(Z, M, e) BOOST_PP_COMMA_IF(BOOST_PP_SUB(M, 2)) EVAL(Z, M, e)
|
||||
using namespace detail::get_pointer_;
|
||||
return (get_pointer(EVAL(~, 1, e)) ->* EVAL(~, 0, e))(
|
||||
BOOST_PP_REPEAT_FROM_TO(2, N, M0, e)
|
||||
);
|
||||
#undef M0
|
||||
}
|
||||
};
|
||||
|
||||
#undef N
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user