98 lines
3.5 KiB
Plaintext
98 lines
3.5 KiB
Plaintext
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#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
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#include <boost/proto/transform/detail/preprocessed/default_function_impl.hpp>
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#elif !defined(BOOST_PP_IS_ITERATING)
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#define BOOST_PROTO_DEF_FUN_INVOKE_ARG(Z, M, DATA) \
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BOOST_PROTO_DEFAULT_EVAL(Z, BOOST_PP_ADD(M, 2), DATA)
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/default_function_impl.hpp")
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#endif
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///////////////////////////////////////////////////////////////////////////////
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/// \file default_function_impl.hpp
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/// Contains definition of the default_function_impl, the implementation of the
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/// _default transform for function-like nodes.
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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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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(preserve: 1)
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#endif
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3, (3, BOOST_PROTO_MAX_ARITY, <boost/proto/transform/detail/default_function_impl.hpp>))
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#include BOOST_PP_ITERATE()
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(output: null)
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#endif
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#undef BOOST_PROTO_DEF_FUN_INVOKE_ARG
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#else
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#define N BOOST_PP_ITERATION()
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template<typename Grammar, typename Expr, typename State, typename Data>
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struct default_function_impl<Grammar, Expr, State, Data, N>
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: transform_impl<Expr, State, Data>
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{
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BOOST_PP_REPEAT(N, BOOST_PROTO_DEFAULT_EVAL_TYPE, Expr)
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typedef
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typename proto::detail::result_of_fixup<r0>::type
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function_type;
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typedef
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typename BOOST_PROTO_RESULT_OF<
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function_type(BOOST_PP_ENUM_SHIFTED_PARAMS(N, r))
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>::type
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result_type;
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result_type operator ()(
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typename default_function_impl::expr_param e
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, typename default_function_impl::state_param s
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, typename default_function_impl::data_param d
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) const
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{
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return this->invoke(e, s, d, is_member_function_pointer<function_type>());
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}
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private:
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result_type invoke(
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typename default_function_impl::expr_param e
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, typename default_function_impl::state_param s
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, typename default_function_impl::data_param d
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, mpl::false_
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) const
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{
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return BOOST_PROTO_DEFAULT_EVAL(~, 0, e)(
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BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL, e)
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);
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}
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result_type invoke(
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typename default_function_impl::expr_param e
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, typename default_function_impl::state_param s
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, typename default_function_impl::data_param d
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, mpl::true_
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) const
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{
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BOOST_PROTO_USE_GET_POINTER();
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typedef typename detail::class_member_traits<function_type>::class_type class_type;
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return (
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BOOST_PROTO_GET_POINTER(class_type, (BOOST_PROTO_DEFAULT_EVAL(~, 1, e))) ->*
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BOOST_PROTO_DEFAULT_EVAL(~, 0, e)
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)(BOOST_PP_ENUM(BOOST_PP_SUB(N, 2), BOOST_PROTO_DEF_FUN_INVOKE_ARG, e));
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}
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};
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#undef N
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#endif
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