4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief ParsedCommand Boost.Preprocesser external iteration include */
26 #if !BOOST_PP_IS_ITERATING && !defined(MPP_ParsedCommand_)
27 #define MPP_ParsedCommand_ 1
30 #include <boost/preprocessor/iteration/iterate.hpp>
31 #include <boost/preprocessor/repetition/enum_trailing.hpp>
32 #include <boost/preprocessor/repetition/enum_params.hpp>
33 #include <boost/preprocessor/repetition/enum_binary_params.hpp>
34 #include <boost/preprocessor/cat.hpp>
35 #include <boost/preprocessor/arithmetic/inc.hpp>
36 #include <boost/preprocessor/repetition/repeat.hpp>
37 #include <boost/type_traits/remove_reference.hpp>
38 #include <boost/type_traits/remove_const.hpp>
39 #include <boost/bind.hpp>
41 // ///////////////////////////mpp.p////////////////////////////////////////
42 #elif BOOST_PP_IS_ITERATING // ////////////////////////////////////////////
43 // ////////////////////////////////////////////////////////////////////////
46 #define mpp_ArgTypeN(n) BOOST_PP_CAT(BOOST_PP_CAT(arg, BOOST_PP_INC(n)), _type)
47 #define mpp_ArgN(n) BOOST_PP_CAT(arg, BOOST_PP_INC(n))
49 #define mpp_ArgTypes_(z,n,d) typename traits::mpp_ArgTypeN(n)
50 #define mpp_TrailingArgTypes() BOOST_PP_ENUM_TRAILING( BOOST_PP_ITERATION(), mpp_ArgTypes_, _ )
52 #define mpp_Args_(z,n,d) boost::cref(mpp_ArgN(n))
53 #define mpp_TrailingArgs() BOOST_PP_ENUM_TRAILING( BOOST_PP_ITERATION(), mpp_Args_, _ )
55 #define mpp_BindArgs_(z,n,d) BOOST_PP_CAT( _, BOOST_PP_INC(BOOST_PP_INC(n)))
56 #define mpp_TrailingBindArgs() BOOST_PP_ENUM_TRAILING( BOOST_PP_ITERATION(), mpp_BindArgs_, _ )
58 // ////////////////////////////////////////////////////////////////////////
59 #if BOOST_PP_ITERATION_FLAGS()==1 // //////////////////////////////////////
60 // ////////////////////////////////////////////////////////////////////////
64 template <class FunctionTraits>
65 class ParsedCommandOverload<FunctionTraits, BOOST_PP_ITERATION() >
66 : public ParsedCommandOverloadBase
69 typedef boost::intrusive_ptr<ParsedCommandOverload> ptr;
70 typedef FunctionTraits traits;
71 typedef boost::function<typename traits::result_type(std::ostream &
72 mpp_TrailingArgTypes())> Function;
74 # define mpp_l(z,n,d) \
75 typedef typename senf::remove_cvref< typename traits::mpp_ArgTypeN(n) >::type \
77 BOOST_PP_REPEAT( BOOST_PP_ITERATION(), mpp_l, _ )
80 static ptr create(Function fn);
85 ParsedCommandOverload(Function fn);
87 virtual void v_execute(std::ostream & os, ParseCommandInfo const & command) const;
92 // ////////////////////////////////////////////////////////////////////////
93 #elif BOOST_PP_ITERATION_FLAGS()==2 // ////////////////////////////////////
94 // ////////////////////////////////////////////////////////////////////////
96 // inline template implementation (.cti)
98 template <class FunctionTraits>
99 prefix_ typename senf::console::ParsedCommandOverload<FunctionTraits, BOOST_PP_ITERATION() >::ptr
100 senf::console::ParsedCommandOverload<FunctionTraits, BOOST_PP_ITERATION() >::create(Function fn)
102 return ptr(new ParsedCommandOverload(fn));
105 template <class FunctionTraits>
107 senf::console::ParsedCommandOverload<FunctionTraits,BOOST_PP_ITERATION()>::
108 ParsedCommandOverload(Function fn)
111 # define mpp_l(z,n,d) addParameter< mpp_ArgTypeN(n) >();
112 BOOST_PP_REPEAT( BOOST_PP_ITERATION(), mpp_l, _ )
116 // ////////////////////////////////////////////////////////////////////////
117 #elif BOOST_PP_ITERATION_FLAGS()==3 // ////////////////////////////////////
118 // ////////////////////////////////////////////////////////////////////////
120 // non-inline template implementation (.ct)
122 template <class FunctionTraits>
123 prefix_ void senf::console::ParsedCommandOverload<FunctionTraits, BOOST_PP_ITERATION() >::
124 v_execute(std::ostream & os, ParseCommandInfo const & command)
127 if ( command.arguments().size() > BOOST_PP_ITERATION()
128 || (command.arguments().size() < BOOST_PP_ITERATION()
129 && ! arg( command.arguments().size() ).hasDefault) )
130 throw SyntaxErrorException("invalid number of arguments");
132 ParseCommandInfo::argument_iterator i (command.arguments().begin());
133 ParseCommandInfo::argument_iterator const i_end (command.arguments().end());
135 # define mpp_l(z,n,d) \
136 mpp_ArgTypeN(n) mpp_ArgN(n) (arg< mpp_ArgTypeN(n) >( n ).defaultValue); \
138 detail::ParameterTraits< mpp_ArgTypeN(n) >::parse( *(i++), mpp_ArgN(n) );
139 BOOST_PP_REPEAT( BOOST_PP_ITERATION(), mpp_l, _ )
142 // Now call the function binding the arguments to the values parsed above. callAndWrite is
143 // specialized to ignore a 'void' return value but automatically write all other values to the
145 detail::ReturnValueTraits<typename traits::result_type>::callAndWrite(
146 boost::bind(function_, boost::ref(os)
151 // ////////////////////////////////////////////////////////////////////////
152 #elif BOOST_PP_ITERATION_FLAGS()==4 // ////////////////////////////////////
153 // ////////////////////////////////////////////////////////////////////////
155 // CreateParsedCommandOverload
157 template <class Traits>
158 struct CreateParsedCommandOverload<Traits, true, BOOST_PP_ITERATION()>
160 typedef Traits traits;
162 template <class Function>
163 static typename senf::console::ParsedCommandOverload<traits>::ptr create(Function fn)
165 return senf::console::ParsedCommandOverload<traits>::create(
166 boost::bind(fn mpp_TrailingBindArgs()) );
171 // ////////////////////////////////////////////////////////////////////////
172 #elif BOOST_PP_ITERATION_FLAGS()==5 // ////////////////////////////////////
173 // ////////////////////////////////////////////////////////////////////////
175 // Create keyword arg forwarding functions
177 template <BOOST_PP_ENUM_PARAMS( BOOST_PP_ITERATION(), class A ) >
178 next_type arg ( BOOST_PP_ENUM_BINARY_PARAMS( BOOST_PP_ITERATION(), A, const & a ),
179 typename arg_params::match< BOOST_PP_ENUM_PARAMS( BOOST_PP_ITERATION(), A ) >::type
180 kw = arg_params()) const {
181 return argInfo( kw(BOOST_PP_ENUM_PARAMS( BOOST_PP_ITERATION(), a )) );
184 // ////////////////////////////////////////////////////////////////////////
185 #endif // /////////////////////////////////////////////////////////////////
186 // ////////////////////////////////////////////////////////////////////////
187 // Undefine local Macros
189 #undef mpp_TrailingArgs
192 #undef mpp_TrailingArgTypes
198 // ////////////////////////////////////////////////////////////////////////
199 #endif // /////////////////////////////////////////////////////////////////
200 // ///////////////////////////mpp.e////////////////////////////////////////
206 // comment-column: 40
207 // c-file-style: "senf"
208 // indent-tabs-mode: nil
209 // ispell-local-dictionary: "american"
210 // compile-command: "scons -u test"