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1 /*=============================================================================
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2 Copyright (c) 2011 Thomas Heller
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3 Copyright (c) 2001-2011 Hartmut Kaiser
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4 Copyright (c) 2011 Thomas Heller
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5
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6 Distributed under the Boost Software License, Version 1.0. (See accompanying
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7 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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8 ==============================================================================*/
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9 #if !defined(BOOST_SPIRIT_ARGUMENT_MARCH_22_2011_0939PM)
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10 #define BOOST_SPIRIT_ARGUMENT_MARCH_22_2011_0939PM
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11
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12 #include <boost/spirit/include/phoenix_core.hpp>
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13
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14 namespace boost { namespace spirit
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15 {
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16 template <int N>
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17 struct argument;
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18
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19 template <typename Dummy>
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20 struct attribute_context;
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21
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22 namespace expression
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23 {
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24 template <int N>
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25 struct argument
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26 : phoenix::expression::terminal<spirit::argument<N> >
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27 {
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28 typedef typename phoenix::expression::terminal<
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29 spirit::argument<N>
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30 >::type type;
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31
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32 static type make()
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33 {
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34 type const e = {{{}}};
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35 return e;
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36 }
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37 };
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38
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39 template <typename Dummy>
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40 struct attribute_context
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41 : phoenix::expression::terminal<spirit::attribute_context<Dummy> >
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42 {
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43 typedef typename phoenix::expression::terminal<
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44 spirit::attribute_context<Dummy>
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45 >::type type;
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46
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47 static type make()
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48 {
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49 type const e = {{{}}};
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50 return e;
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51 }
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52 };
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53 }
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54 }}
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55
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56 namespace boost { namespace phoenix
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57 {
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58 namespace result_of
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59 {
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60 template <typename Dummy>
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61 struct is_nullary<custom_terminal<spirit::attribute_context<Dummy> > >
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62 : mpl::false_
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63 {};
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64
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65 template <int N>
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66 struct is_nullary<custom_terminal<spirit::argument<N> > >
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67 : mpl::false_
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68 {};
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69 }
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70
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71 template <typename Dummy>
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72 struct is_custom_terminal<spirit::attribute_context<Dummy> >
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73 : mpl::true_
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74 {};
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75
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76 template <int N>
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77 struct is_custom_terminal<spirit::argument<N> >
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78 : mpl::true_
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79 {};
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80
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81 template <typename Dummy>
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82 struct custom_terminal<spirit::attribute_context<Dummy> >
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83 : proto::call<
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84 v2_eval(
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85 proto::make<spirit::attribute_context<Dummy>()>
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86 , proto::call<
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87 functional::env(proto::_state)
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88 >
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89 )
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90 >
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91 {};
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92
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93 template <int N>
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94 struct custom_terminal<spirit::argument<N> >
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95 : proto::call<
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96 v2_eval(
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97 proto::make<spirit::argument<N>()>
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98 , proto::call<
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99 functional::env(proto::_state)
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100 >
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101 )
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102 >
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103 {};
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104 }}
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105
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106 #endif
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