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82 lines
2.9 KiB
82 lines
2.9 KiB
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
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#include <boost/proto/context/detail/preprocessed/default_eval.hpp> |
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#elif !defined(BOOST_PP_IS_ITERATING) |
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#define BOOST_PROTO_DEFAULT_EVAL_SHIFTED(Z, M, DATA) \ |
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BOOST_PROTO_DEFAULT_EVAL(Z, BOOST_PP_ADD(M, 2), DATA) \ |
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/**/ |
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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_eval.hpp") |
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#endif |
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/////////////////////////////////////////////////////////////////////////////// |
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/// \file default_eval.hpp |
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/// Contains specializations of the default_eval\<\> class template. |
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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/context/detail/default_eval.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_DEFAULT_EVAL_SHIFTED |
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#else |
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#define N BOOST_PP_ITERATION() |
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template<typename Expr, typename Context> |
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struct default_eval<Expr, Context, proto::tag::function, N> |
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{ |
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typedef |
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typename proto::detail::result_of_fixup< |
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BOOST_PROTO_DEFAULT_EVAL_TYPE(~, 0, Expr) |
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>::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(N, BOOST_PROTO_DEFAULT_EVAL_TYPE, Expr)) |
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>::type |
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result_type; |
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result_type operator ()(Expr &expr, Context &context) const |
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{ |
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return this->invoke(expr, context, is_member_function_pointer<function_type>()); |
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} |
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private: |
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result_type invoke(Expr &expr, Context &context, mpl::false_) const |
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{ |
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return BOOST_PROTO_DEFAULT_EVAL(~, 0, expr)( |
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BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL, expr) |
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); |
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} |
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result_type invoke(Expr &expr, Context &context, mpl::true_) const |
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{ |
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BOOST_PROTO_USE_GET_POINTER(); |
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typedef typename detail::classtypeof<function_type>::type class_type; |
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return ( |
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BOOST_PROTO_GET_POINTER(class_type, BOOST_PROTO_DEFAULT_EVAL(~, 1, expr)) ->* |
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BOOST_PROTO_DEFAULT_EVAL(~, 0, expr) |
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)(BOOST_PP_ENUM(BOOST_PP_SUB(N, 2), BOOST_PROTO_DEFAULT_EVAL_SHIFTED, expr)); |
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} |
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}; |
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#undef N |
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#endif
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