[857] | 1 | // (C) Copyright Gennadiy Rozental 2001-2005.
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| 2 | // Distributed under the Boost Software License, Version 1.0.
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| 3 | // (See accompanying file LICENSE_1_0.txt or copy at
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| 4 | // http://www.boost.org/LICENSE_1_0.txt)
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| 5 |
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| 6 | // See http://www.boost.org/libs/test for the library home page.
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| 7 | //
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| 8 | // File : $RCSfile: class_properties.hpp,v $
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| 9 | //
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| 10 | // Version : $Revision: 1.7 $
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| 11 | //
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| 12 | // Description : simple facility that mimmic notion of read-only read-write
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| 13 | // properties in C++ classes. Original idea by Henrik Ravn.
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| 14 | // ***************************************************************************
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| 15 |
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| 16 | #ifndef BOOST_TEST_CLASS_PROPERTIES_HPP_071894GER
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| 17 | #define BOOST_TEST_CLASS_PROPERTIES_HPP_071894GER
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| 18 |
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| 19 | // Boost.Test
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| 20 | #include <boost/test/detail/config.hpp>
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| 21 |
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| 22 | // Boost
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| 23 | #if !BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(600))
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| 24 | #include <boost/preprocessor/seq/for_each.hpp>
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| 25 | #endif
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| 26 | #include <boost/call_traits.hpp>
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| 27 | #include <boost/type_traits/add_pointer.hpp>
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| 28 | #include <boost/type_traits/add_const.hpp>
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| 29 | #include <boost/utility/addressof.hpp>
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| 30 |
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| 31 | // STL
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| 32 | #include <iosfwd>
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| 33 |
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| 34 | #include <boost/test/detail/suppress_warnings.hpp>
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| 35 |
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| 36 | //____________________________________________________________________________//
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| 37 |
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| 38 | namespace boost {
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| 39 |
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| 40 | namespace unit_test {
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| 41 |
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| 42 | // ************************************************************************** //
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| 43 | // ************** class_property ************** //
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| 44 | // ************************************************************************** //
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| 45 |
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| 46 | template<class PropertyType>
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| 47 | class class_property {
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| 48 | protected:
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| 49 | typedef typename call_traits<PropertyType>::const_reference read_access_t;
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| 50 | typedef typename call_traits<PropertyType>::param_type write_param_t;
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| 51 | #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))
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| 52 | typedef typename add_pointer<PropertyType const>::type address_res_t;
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| 53 | #else
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| 54 | typedef typename add_pointer<typename add_const<PropertyType>::type>::type address_res_t;
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| 55 | #endif
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| 56 | public:
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| 57 | // Constructor
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| 58 | class_property() : value( PropertyType() ) {}
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| 59 | explicit class_property( write_param_t init_value )
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| 60 | : value( init_value ) {}
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| 61 |
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| 62 | // Access methods
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| 63 | operator read_access_t() const { return value; }
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| 64 | read_access_t get() const { return value; }
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| 65 | bool operator!() const { return !value; }
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| 66 | address_res_t operator&() const { return &value; }
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| 67 |
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| 68 | // Data members
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| 69 | #ifndef BOOST_TEST_NO_PROTECTED_USING
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| 70 | protected:
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| 71 | #endif
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| 72 | PropertyType value;
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| 73 | };
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| 74 |
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| 75 | //____________________________________________________________________________//
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| 76 |
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| 77 | #ifdef BOOST_CLASSIC_IOSTREAMS
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| 78 |
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| 79 | template<class PropertyType>
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| 80 | inline std::ostream&
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| 81 | operator<<( std::ostream& os, class_property<PropertyType> const& p )
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| 82 |
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| 83 | #else
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| 84 |
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| 85 | template<typename CharT1, typename Tr,class PropertyType>
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| 86 | inline std::basic_ostream<CharT1,Tr>&
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| 87 | operator<<( std::basic_ostream<CharT1,Tr>& os, class_property<PropertyType> const& p )
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| 88 |
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| 89 | #endif
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| 90 | {
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| 91 | return os << p.get();
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| 92 | }
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| 93 |
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| 94 | //____________________________________________________________________________//
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| 95 |
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| 96 | #define DEFINE_PROPERTY_FREE_BINARY_OPERATOR( op ) \
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| 97 | template<class PropertyType> \
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| 98 | inline bool \
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| 99 | operator op( PropertyType const& lhs, class_property<PropertyType> const& rhs ) \
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| 100 | { \
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| 101 | return lhs op rhs.get(); \
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| 102 | } \
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| 103 | template<class PropertyType> \
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| 104 | inline bool \
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| 105 | operator op( class_property<PropertyType> const& lhs, PropertyType const& rhs ) \
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| 106 | { \
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| 107 | return lhs.get() op rhs; \
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| 108 | } \
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| 109 | template<class PropertyType> \
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| 110 | inline bool \
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| 111 | operator op( class_property<PropertyType> const& lhs, \
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| 112 | class_property<PropertyType> const& rhs ) \
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| 113 | { \
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| 114 | return lhs.get() op rhs.get(); \
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| 115 | } \
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| 116 | /**/
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| 117 |
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| 118 | DEFINE_PROPERTY_FREE_BINARY_OPERATOR( == )
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| 119 | DEFINE_PROPERTY_FREE_BINARY_OPERATOR( != )
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| 120 |
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| 121 | #undef DEFINE_PROPERTY_FREE_BINARY_OPERATOR
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| 122 |
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| 123 | #if BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
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| 124 |
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| 125 | #define DEFINE_PROPERTY_LOGICAL_OPERATOR( op ) \
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| 126 | template<class PropertyType> \
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| 127 | inline bool \
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| 128 | operator op( bool b, class_property<PropertyType> const& p ) \
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| 129 | { \
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| 130 | return b op p.get(); \
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| 131 | } \
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| 132 | template<class PropertyType> \
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| 133 | inline bool \
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| 134 | operator op( class_property<PropertyType> const& p, bool b ) \
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| 135 | { \
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| 136 | return b op p.get(); \
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| 137 | } \
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| 138 | /**/
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| 139 |
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| 140 | DEFINE_PROPERTY_LOGICAL_OPERATOR( && )
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| 141 | DEFINE_PROPERTY_LOGICAL_OPERATOR( || )
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| 142 |
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| 143 | #endif
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| 144 |
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| 145 | // ************************************************************************** //
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| 146 | // ************** readonly_property ************** //
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| 147 | // ************************************************************************** //
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| 148 |
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| 149 | template<class PropertyType>
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| 150 | class readonly_property : public class_property<PropertyType> {
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| 151 | typedef class_property<PropertyType> base_prop;
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| 152 | typedef typename base_prop::address_res_t arrow_res_t;
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| 153 | protected:
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| 154 | typedef typename base_prop::write_param_t write_param_t;
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| 155 | public:
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| 156 | // Constructor
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| 157 | readonly_property() {}
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| 158 | explicit readonly_property( write_param_t init_value ) : base_prop( init_value ) {}
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| 159 |
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| 160 | // access methods
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| 161 | arrow_res_t operator->() const { return boost::addressof( base_prop::value ); }
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| 162 | };
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| 163 |
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| 164 | //____________________________________________________________________________//
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| 165 |
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| 166 | #if BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(600))
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| 167 |
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| 168 | #define BOOST_READONLY_PROPERTY( property_type, friends ) boost::unit_test::readwrite_property<property_type >
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| 169 |
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| 170 | #else
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| 171 |
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| 172 | #define BOOST_READONLY_PROPERTY_DECLARE_FRIEND(r, data, elem) friend class elem;
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| 173 |
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| 174 | #define BOOST_READONLY_PROPERTY( property_type, friends ) \
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| 175 | class BOOST_JOIN( readonly_property, __LINE__ ) \
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| 176 | : public boost::unit_test::readonly_property<property_type > { \
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| 177 | typedef boost::unit_test::readonly_property<property_type > base_prop; \
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| 178 | BOOST_PP_SEQ_FOR_EACH( BOOST_READONLY_PROPERTY_DECLARE_FRIEND, ' ', friends ) \
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| 179 | typedef base_prop::write_param_t write_param_t; \
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| 180 | public: \
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| 181 | BOOST_JOIN( readonly_property, __LINE__ )() {} \
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| 182 | explicit BOOST_JOIN( readonly_property, __LINE__ )( write_param_t init_v ) \
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| 183 | : base_prop( init_v ) {} \
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| 184 | } \
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| 185 | /**/
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| 186 |
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| 187 | #endif
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| 188 |
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| 189 | // ************************************************************************** //
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| 190 | // ************** readwrite_property ************** //
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| 191 | // ************************************************************************** //
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| 192 |
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| 193 | template<class PropertyType>
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| 194 | class readwrite_property : public class_property<PropertyType> {
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| 195 | typedef class_property<PropertyType> base_prop;
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| 196 | typedef typename add_pointer<PropertyType>::type arrow_res_t;
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| 197 | typedef typename base_prop::address_res_t const_arrow_res_t;
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| 198 | typedef typename base_prop::write_param_t write_param_t;
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| 199 | public:
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| 200 | readwrite_property() : base_prop() {}
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| 201 | explicit readwrite_property( write_param_t init_value ) : base_prop( init_value ) {}
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| 202 |
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| 203 | // access methods
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| 204 | void set( write_param_t v ) { base_prop::value = v; }
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| 205 | arrow_res_t operator->() { return boost::addressof( base_prop::value ); }
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| 206 | const_arrow_res_t operator->() const { return boost::addressof( base_prop::value ); }
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| 207 |
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| 208 | #ifndef BOOST_TEST_NO_PROTECTED_USING
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| 209 | using base_prop::value;
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| 210 | #endif
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| 211 | };
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| 212 |
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| 213 | //____________________________________________________________________________//
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| 214 |
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| 215 | } // unit_test
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| 216 |
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| 217 | } // namespace boost
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| 218 |
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| 219 | //____________________________________________________________________________//
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| 220 |
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| 221 | #include <boost/test/detail/enable_warnings.hpp>
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| 222 |
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| 223 | #undef BOOST_TEST_NO_PROTECTED_USING
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| 224 |
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| 225 | // ***************************************************************************
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| 226 | // Revision History :
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| 227 | //
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| 228 | // $Log: class_properties.hpp,v $
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| 229 | // Revision 1.7 2005/05/11 05:04:58 rogeeff
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| 230 | // borland portability fix
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| 231 | //
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| 232 | // Revision 1.6 2005/04/12 06:46:17 rogeeff
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| 233 | // use add_const
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| 234 | //
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| 235 | // Revision 1.5 2005/02/21 10:17:27 rogeeff
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| 236 | // base reference renamed (borland bug fix)
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| 237 | //
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| 238 | // Revision 1.4 2005/02/20 08:27:08 rogeeff
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| 239 | // This a major update for Boost.Test framework. See release docs for complete list of fixes/updates
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| 240 | //
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| 241 | // Revision 1.3 2005/02/01 06:40:07 rogeeff
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| 242 | // copyright update
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| 243 | // old log entries removed
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| 244 | // minor stilistic changes
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| 245 | // depricated tools removed
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| 246 | //
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| 247 | // Revision 1.2 2005/01/22 19:22:13 rogeeff
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| 248 | // implementation moved into headers section to eliminate dependency of included/minimal component on src directory
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| 249 | //
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| 250 | // Revision 1.1 2005/01/22 18:21:39 rogeeff
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| 251 | // moved sharable staff into utils
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| 252 | //
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| 253 | // ***************************************************************************
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| 254 |
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| 255 | #endif // BOOST_TEST_CLASS_PROPERTIES_HPP_071894GER
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