00001 /*************************************************************************** 00002 tag: Peter Soetens Sat May 7 12:56:52 CEST 2005 DataSourceTypeInfo.hpp 00003 00004 DataSourceTypeInfo.hpp - description 00005 ------------------- 00006 begin : Sat May 07 2005 00007 copyright : (C) 2005 Peter Soetens 00008 email : peter.soetens@mech.kuleuven.ac.be 00009 00010 *************************************************************************** 00011 * This library is free software; you can redistribute it and/or * 00012 * modify it under the terms of the GNU General Public * 00013 * License as published by the Free Software Foundation; * 00014 * version 2 of the License. * 00015 * * 00016 * As a special exception, you may use this file as part of a free * 00017 * software library without restriction. Specifically, if other files * 00018 * instantiate templates or use macros or inline functions from this * 00019 * file, or you compile this file and link it with other files to * 00020 * produce an executable, this file does not by itself cause the * 00021 * resulting executable to be covered by the GNU General Public * 00022 * License. This exception does not however invalidate any other * 00023 * reasons why the executable file might be covered by the GNU General * 00024 * Public License. * 00025 * * 00026 * This library is distributed in the hope that it will be useful, * 00027 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00028 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00029 * Lesser General Public License for more details. * 00030 * * 00031 * You should have received a copy of the GNU General Public * 00032 * License along with this library; if not, write to the Free Software * 00033 * Foundation, Inc., 59 Temple Place, * 00034 * Suite 330, Boston, MA 02111-1307 USA * 00035 * * 00036 ***************************************************************************/ 00037 00038 00039 #ifndef DATASOURCE_TYPE_INFO_HPP 00040 #define DATASOURCE_TYPE_INFO_HPP 00041 00042 #include <string> 00043 #include <typeinfo> 00044 #include "../types/carray.hpp" 00045 #include "../rtt-config.h" 00046 #include "../types/rtt-types-fwd.hpp" 00047 00048 namespace RTT 00049 { 00050 00051 namespace internal { 00052 00053 struct RTT_API UnknownType {}; 00054 00055 template< class T> 00056 struct DataSourceTypeInfo; 00057 00063 template<> 00064 struct RTT_API DataSourceTypeInfo<UnknownType> { 00065 typedef UnknownType value_type; 00066 typedef DataSourceTypeInfo<UnknownType> value_type_info; 00067 00068 static types::TypeInfo* TypeInfoObject; 00069 00070 static const std::string noqual; 00071 static const std::string cqual; 00072 static const std::string refqual; 00073 static const std::string crefqual; 00074 static const std::string ptrqual; 00075 static const std::string cptrqual; 00076 static const std::string& getType(); 00077 static const std::string& getTypeName(); 00078 static const std::string& getQualifier(); 00079 // we drop the const qualifier in this specialisation, since it is 00080 // not registered in the type repository (which returns a non const in type() ) 00081 static types::TypeInfo* getTypeInfo(); 00082 }; 00083 00088 template< class T> 00089 struct DataSourceTypeInfo<const T&> { 00090 typedef T value_type; 00091 typedef DataSourceTypeInfo<T> value_type_info; 00092 static std::string getType() { return getTypeName() + getQualifier(); } 00093 static const std::string& getTypeName() { return DataSourceTypeInfo< T >::getTypeName(); } 00094 static const std::string& getQualifier() { return DataSourceTypeInfo<UnknownType>::crefqual; } 00095 static const types::TypeInfo* getTypeInfo() { return DataSourceTypeInfo< T >::getTypeInfo(); } 00096 }; 00097 00098 template< class T> 00099 struct DataSourceTypeInfo<T&> { 00100 typedef T value_type; 00101 typedef DataSourceTypeInfo<T> value_type_info; 00102 static std::string getType() { return getTypeName() + getQualifier(); } 00103 static const std::string& getTypeName() { return DataSourceTypeInfo< T >::getTypeName(); } 00104 static const std::string& getQualifier() { return DataSourceTypeInfo<UnknownType>::refqual; } 00105 static const types::TypeInfo* getTypeInfo() { return DataSourceTypeInfo< T >::getTypeInfo(); } 00106 }; 00107 00108 template< class T> 00109 struct DataSourceTypeInfo<const T> { 00110 typedef T value_type; 00111 typedef DataSourceTypeInfo<T> value_type_info; 00112 static std::string getType() { return getTypeName() + getQualifier(); } 00113 static const std::string& getTypeName() { return DataSourceTypeInfo< T >::getTypeName(); } 00114 static const std::string& getQualifier() { return DataSourceTypeInfo<UnknownType>::cqual; } 00115 static const types::TypeInfo* getTypeInfo() { return DataSourceTypeInfo< T >::getTypeInfo(); } 00116 }; 00117 00118 template< class T> 00119 struct DataSourceTypeInfo<T*> { 00120 typedef T value_type; 00121 typedef DataSourceTypeInfo<T> value_type_info; 00122 static std::string getType() { return getTypeName() + getQualifier(); } 00123 static const std::string& getTypeName() { return DataSourceTypeInfo< T >::getTypeName(); } 00124 static const std::string& getQualifier() { return DataSourceTypeInfo<UnknownType>::ptrqual; } 00125 static const types::TypeInfo* getTypeInfo(); 00126 static types::TypeInfo* TypeInfoObject; 00127 }; 00128 00129 template< class T> 00130 struct DataSourceTypeInfo<const T*> { 00131 typedef T value_type; 00132 typedef DataSourceTypeInfo<T> value_type_info; 00133 static std::string getType() { return getTypeName() + getQualifier(); } 00134 static const std::string& getTypeName() { return DataSourceTypeInfo< T >::getTypeName(); } 00135 static const std::string& getQualifier() { return DataSourceTypeInfo<UnknownType>::cptrqual; } 00136 static const types::TypeInfo* getTypeInfo() { return DataSourceTypeInfo< T >::getTypeInfo(); } 00137 }; 00138 00147 template< class T> 00148 struct DataSourceTypeInfo<types::carray<T> > { 00149 typedef types::carray<T> value_type; 00150 typedef DataSourceTypeInfo<value_type> value_type_info; 00151 static std::string getType() { return getTypeName() + "[N]"; } 00152 static const std::string& getTypeName() { return DataSourceTypeInfo< T >::getTypeInfo()->getTypeName(); } 00153 static const std::string& getQualifier() { return DataSourceTypeInfo<UnknownType>::noqual; } 00154 static const types::TypeInfo* getTypeInfo(); 00155 static types::TypeInfo* TypeInfoObject; 00156 }; 00157 00164 template< class T> 00165 struct DataSourceTypeInfo { 00166 typedef T value_type; 00167 typedef DataSourceTypeInfo<T> value_type_info; 00168 00173 static types::TypeInfo* TypeInfoObject; 00174 00178 static const std::string& getType(); 00179 00183 static const std::string& getTypeName(); 00184 00188 static const std::string& getQualifier(); 00189 00193 static const types::TypeInfo* getTypeInfo(); 00194 }; 00195 00199 template<> 00200 struct RTT_API DataSourceTypeInfo<void> { 00201 static const std::string tname; 00202 public: 00203 typedef void value_type; 00204 typedef DataSourceTypeInfo<void> value_type_info; 00205 00210 static types::TypeInfo* TypeInfoObject; 00211 00215 static const std::string& getType(); 00216 00220 static const std::string& getTypeName(); 00221 00225 static const std::string& getQualifier(); 00226 00230 static const types::TypeInfo* getTypeInfo(); 00231 }; 00232 } 00233 00234 } 00235 00236 #endif 00237 00238 #include "DataSourceTypeInfo.inl"