1 /* 2 Pairs 3 */ 4 %include <rubystdcommon.swg> 5 6 //#define SWIG_STD_PAIR_ASVAL 7 8 %fragment("StdPairTraits","header",fragment="StdTraits") { 9 namespace swig { 10 11 template <class T, class U > 12 struct traits_asval<std::pair<T,U> > { 13 typedef std::pair<T,U> value_type; 14 15 static int get_pair(VALUE first, VALUE second, 16 std::pair<T,U> *val) 17 { 18 if (val) { 19 T *pfirst = &(val->first); 20 int res1 = swig::asval((VALUE)first, pfirst); 21 if (!SWIG_IsOK(res1)) return res1; 22 U *psecond = &(val->second); 23 int res2 = swig::asval((VALUE)second, psecond); 24 if (!SWIG_IsOK(res2)) return res2; 25 return res1 > res2 ? res1 : res2; 26 } else { 27 T *pfirst = 0; 28 int res1 = swig::asval((VALUE)first, pfirst); 29 if (!SWIG_IsOK(res1)) return res1; 30 U *psecond = 0; 31 int res2 = swig::asval((VALUE)second, psecond); 32 if (!SWIG_IsOK(res2)) return res2; 33 return res1 > res2 ? res1 : res2; 34 } 35 } 36 37 static int asval(VALUE obj, std::pair<T,U> *val) { 38 int res = SWIG_ERROR; 39 if ( TYPE(obj) == T_ARRAY ) { 40 if (RARRAY_LEN(obj) == 2) { 41 VALUE first = rb_ary_entry(obj,0); 42 VALUE second = rb_ary_entry(obj,1); 43 res = get_pair(first, second, val); 44 } 45 } else { 46 value_type *p; 47 res = SWIG_ConvertPtr(obj,(void**)&p, 48 swig::type_info<value_type>(),0); 49 if (SWIG_IsOK(res) && val) *val = *p; 50 } 51 return res; 52 } 53 }; 54 55 template <class T, class U > 56 struct traits_asptr<std::pair<T,U> > { 57 typedef std::pair<T,U> value_type; 58 59 static int get_pair(VALUE first, VALUE second, 60 std::pair<T,U> **val) 61 { 62 if (val) { 63 value_type *vp = %new_instance(std::pair<T,U>); 64 T *pfirst = &(vp->first); 65 int res1 = swig::asval((VALUE)first, pfirst); 66 if (!SWIG_IsOK(res1)) return res1; 67 U *psecond = &(vp->second); 68 int res2 = swig::asval((VALUE)second, psecond); 69 if (!SWIG_IsOK(res2)) return res2; 70 *val = vp; 71 return SWIG_AddNewMask(res1 > res2 ? res1 : res2); 72 } else { 73 T *pfirst = 0; 74 int res1 = swig::asval((VALUE)first, pfirst); 75 if (!SWIG_IsOK(res1)) return res1; 76 U *psecond = 0; 77 int res2 = swig::asval((VALUE)second, psecond); 78 if (!SWIG_IsOK(res2)) return res2; 79 return res1 > res2 ? res1 : res2; 80 } 81 } 82 83 static int asptr(VALUE obj, std::pair<T,U> **val) { 84 int res = SWIG_ERROR; 85 if ( TYPE(obj) == T_ARRAY ) { 86 if ( RARRAY_LEN(obj) == 2) { 87 VALUE first = rb_ary_entry(obj,0); 88 VALUE second = rb_ary_entry(obj,1); 89 res = get_pair(first, second, val); 90 } 91 } else { 92 value_type *p; 93 res = SWIG_ConvertPtr(obj,(void**)&p, 94 swig::type_info<value_type>(),0); 95 if (SWIG_IsOK(res) && val) *val = p; 96 } 97 return res; 98 } 99 }; 100 101 102 103 template <class T, class U > 104 struct traits_from<std::pair<T,U> > { 105 static VALUE _wrap_pair_second( VALUE self ) 106 { 107 std::pair< typename swig::noconst_traits<T >::noconst_type,U>* p = NULL; 108 swig::asptr( self, &p ); 109 return swig::from( p->second ); 110 } 111 112 static VALUE _wrap_pair_second_eq( VALUE self, VALUE arg ) 113 { 114 std::pair< typename swig::noconst_traits<T >::noconst_type,U>* p = NULL; 115 swig::asptr( self, &p ); 116 return swig::from( p->second ); 117 } 118 119 static VALUE from(const std::pair<T,U>& val) { 120 VALUE obj = rb_ary_new2(2); 121 rb_ary_push(obj, swig::from<typename swig::noconst_traits<T >::noconst_type>(val.first)); 122 rb_ary_push(obj, swig::from(val.second)); 123 rb_define_singleton_method(obj, "second", 124 VALUEFUNC(_wrap_pair_second), 0 ); 125 rb_define_singleton_method(obj, "second=", 126 VALUEFUNC(_wrap_pair_second_eq), 1 ); 127 rb_obj_freeze(obj); // treat as immutable tuple 128 return obj; 129 } 130 }; 131 132 } 133 } 134 135 // Missing typemap 136 %typemap(in) std::pair* (int res) { 137 res = swig::asptr( $input, &$1 ); 138 if (!SWIG_IsOK(res)) 139 %argument_fail(res, "$1_type", $symname, $argnum); 140 } 141 142 143 %define %swig_pair_methods(pair...) 144 145 %extend { 146 VALUE inspect() const 147 { 148 VALUE tmp; 149 const char *type_name = swig::type_name< pair >(); 150 VALUE str = rb_str_new2( type_name ); 151 str = rb_str_cat2( str, " (" ); 152 tmp = swig::from( $self->first ); 153 tmp = rb_obj_as_string( tmp ); 154 str = rb_str_buf_append( str, tmp ); 155 str = rb_str_cat2( str, "," ); 156 tmp = swig::from( $self->second ); 157 tmp = rb_obj_as_string( tmp ); 158 str = rb_str_buf_append( str, tmp ); 159 str = rb_str_cat2( str, ")" ); 160 return str; 161 } 162 163 VALUE to_s() const 164 { 165 VALUE tmp; 166 VALUE str = rb_str_new2( "(" ); 167 tmp = swig::from( $self->first ); 168 tmp = rb_obj_as_string( tmp ); 169 str = rb_str_buf_append( str, tmp ); 170 str = rb_str_cat2( str, "," ); 171 tmp = swig::from( $self->second ); 172 tmp = rb_obj_as_string( tmp ); 173 str = rb_str_buf_append( str, tmp ); 174 str = rb_str_cat2( str, ")" ); 175 return str; 176 } 177 178 VALUE __getitem__( int index ) 179 { 180 if (( index % 2 ) == 0 ) 181 return swig::from( $self->first ); 182 else 183 return swig::from( $self->second ); 184 } 185 186 VALUE __setitem__( int index, VALUE obj ) 187 { 188 int res; 189 if (( index % 2 ) == 0 ) 190 { 191 res = swig::asval( obj, &($self->first) ); 192 } 193 else 194 { 195 res = swig::asval(obj, &($self->second) ); 196 } 197 if (!SWIG_IsOK(res)) 198 rb_raise( rb_eArgError, "invalid item for " #pair ); 199 return obj; 200 } 201 202 } // extend 203 204 %enddef 205 206 %include <std/std_pair.i> 207
