test/test_held_type.cpp

   1 // Copyright (c) 2004 Daniel Wallin and Arvid Norberg
   2
   3 // Permission is hereby granted, free of charge, to any person obtaining a
   4 // copy of this software and associated documentation files (the "Software"),
   5 // to deal in the Software without restriction, including without limitation
   6 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7 // and/or sell copies of the Software, and to permit persons to whom the
   8 // Software is furnished to do so, subject to the following conditions:
   9
  10 // The above copyright notice and this permission notice shall be included
  11 // in all copies or substantial portions of the Software.
  12
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
  14 // ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
  15 // TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  16 // PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
  17 // SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
  18 // ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  19 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
  21 // OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 #include "test.hpp"
  24 #include <luabind/luabind.hpp>
  25 #include <boost/shared_ptr.hpp>
  26 #include <memory>
  27
  28 namespace luabind {
  29
  30     template<class T>
  31     T* get_pointer(boost::shared_ptr<T>& p) { return p.get(); }
  32
  33     template<class A>
  34     boost::shared_ptr<const A>* get_const_holder(boost::shared_ptr<A>*)
  35     {
  36         return 0;
  37     }
  38 }
  39
  40 namespace {
  41
  42 struct base : counted_type<base>
  43 {
  44     base(): n(4) {}
  45     virtual ~base() {}
  46
  47     void f(int)
  48     {
  49     }
  50
  51     int n;
  52 };
  53
  54 // this is here to make sure the pointer offsetting works
  55 struct first_base : counted_type<first_base>
  56 {
  57     ~first_base() {}
  58     virtual void a() {}
  59     int padding;
  60 };
  61
  62 struct derived : first_base, base
  63 {
  64     derived(): n2(7) {}
  65     void f() {}
  66     int n2;
  67 };
  68
  69 int feedback = 0;
  70
  71 void tester(base* t)
  72 {
  73     if (t->n == 4) feedback = 1;
  74 }
  75
  76 void tester_(derived* t)
  77 {
  78     if (t->n2 == 7) feedback = 2;
  79 }
  80
  81 void tester2(boost::shared_ptr<base> t)
  82 {
  83     if (t->n == 4) feedback = 3;
  84 }
  85
  86 void tester3(boost::shared_ptr<const base> t)
  87 {
  88     if (t->n == 4) feedback = 4;
  89 }
  90
  91 void tester4(const boost::shared_ptr<const base>& t)
  92 {
  93     if (t->n == 4) feedback = 5;
  94 }
  95
  96 void tester5(const boost::shared_ptr<const base>* t)
  97 {
  98     if ((*t)->n == 4) feedback = 6;
  99 }
 100
 101 void tester6(const boost::shared_ptr<base>* t)
 102 {
 103     if ((*t)->n == 4) feedback = 7;
 104 }
 105
 106 void tester7(boost::shared_ptr<base>* t)
 107 {
 108     if ((*t)->n == 4) feedback = 8;
 109 }
 110
 111 boost::shared_ptr<base> tester9()
 112 {
 113     feedback = 9;
 114     return boost::shared_ptr<base>(new base());
 115 }
 116
 117 void tester10(boost::shared_ptr<base> const& r)
 118 {
 119         if (r->n == 4) feedback = 10;
 120 }
 121
 122 void tester11(boost::shared_ptr<const base> const& r)
 123 {
 124         if (r->n == 4) feedback = 11;
 125 }
 126
 127 void tester12(boost::shared_ptr<derived> const& r)
 128 {
 129         if (r->n2 == 7) feedback = 12;
 130 }
 131
 132 } // namespace unnamed
 133
 134 void test_held_type()
 135 {
 136     COUNTER_GUARD(first_base);
 137     COUNTER_GUARD(base);
 138
 139     boost::shared_ptr<base> base_ptr(new base());
 140
 141     lua_state L;
 142
 143     using namespace luabind;
 144
 145     module(L)
 146     [
 147         def("tester", &tester),
 148         def("tester", &tester_),
 149         def("tester2", &tester2),
 150         def("tester3", &tester3),
 151         def("tester4", &tester4),
 152         def("tester5", &tester5),
 153         def("tester6", &tester6),
 154         def("tester7", &tester7),
 155         def("tester9", &tester9),
 156                 def("tester10", &tester10),
 157                 def("tester11", &tester11),
 158                 def("tester12", &tester12),
 159
 160         class_<base, boost::shared_ptr<base> >("base")
 161             .def(constructor<>())
 162             .def("f", &base::f),
 163
 164         class_<derived, base, boost::shared_ptr<base> >("derived")
 165             .def(constructor<>())
 166             .def("f", &derived::f)
 167     ];
 168
 169     object g = get_globals(L);
 170     g["ptr"] = base_ptr;
 171
 172     DOSTRING(L, "tester(ptr)");
 173     BOOST_CHECK(feedback == 1);
 174
 175     DOSTRING(L,
 176         "a = base()\n"
 177         "b = derived()\n");
 178
 179     DOSTRING(L, "tester(b)");
 180     BOOST_CHECK(feedback == 2);
 181
 182     DOSTRING(L, "tester(a)");
 183     BOOST_CHECK(feedback == 1);
 184
 185     DOSTRING(L, "tester2(b)");
 186     BOOST_CHECK(feedback == 3);
 187
 188     DOSTRING(L, "tester3(b)");
 189     BOOST_CHECK(feedback == 4);
 190
 191     DOSTRING(L, "tester4(b)");
 192     BOOST_CHECK(feedback == 5);
 193
 194     feedback = 0;
 195
 196     DOSTRING(L, "tester4(a)");
 197     BOOST_CHECK(feedback == 5);
 198
 199     DOSTRING(L, "tester10(b)");
 200     BOOST_CHECK(feedback == 10);
 201
 202     DOSTRING(L, "tester11(b)");
 203     BOOST_CHECK(feedback == 11);
 204
 205         DOSTRING_EXPECTED(
 206                 L
 207                 , "tester12(b)"
 208                 , "no match for function call 'tester12' with the parameters (derived)\n"
 209                 "candidates are:\n"
 210                 "tester12(const custom&)\n");
 211
 212         object nil = get_globals(L)["non_existing_variable_is_nil"];
 213         BOOST_CHECK(object_cast<boost::shared_ptr<base> >(nil).get() == 0);
 214         BOOST_CHECK(object_cast<boost::shared_ptr<const base> >(nil).get() == 0);
 215
 216 }
 217