test/test_attributes.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
  26 struct A
  27 {
  28         int get() const
  29         {
  30                 return 5;
  31         }
  32 };
  33
  34 struct B : A
  35 {
  36 };
  37
  38 struct C
  39 {
  40         int a;
  41 };
  42
  43 struct property_test : counted_type<property_test>
  44 {
  45     property_test(): o(6), c_ref(&c) {}
  46          ~property_test() { c.a = 0; }
  47
  48     std::string str_;
  49     int a_;
  50     float o;
  51     signed char b;
  52          C c;
  53          C* c_ref;
  54
  55     void set(int a) { a_ = a; }
  56     int get() const { return a_; }
  57
  58     void setA(A* a) {}
  59          A* getA() const { return 0; }
  60
  61     void set_str(const char* str)
  62     { str_ = str; }
  63
  64     const char* get_str() const
  65     { return str_.c_str(); }
  66 };
  67
  68 COUNTER_GUARD(property_test);
  69
  70 void free_setter(property_test& p, int a)
  71 { p.set(a); }
  72
  73 int free_getter(const property_test& p)
  74 { return p.get(); }
  75
  76 struct borrowed_attribute : counted_type<borrowed_attribute>
  77 {
  78 };
  79
  80 struct attribute_holder : counted_type<attribute_holder>
  81 {
  82     attribute_holder(borrowed_attribute* b)
  83       : borrowed(b)
  84     {}
  85
  86     borrowed_attribute* borrowed;
  87 };
  88
  89 void test_main(lua_State* L)
  90 {
  91     using namespace luabind;
  92
  93     module(L)
  94     [
  95                 class_<property_test>("property")
  96                         .def(luabind::constructor<>())
  97                         .def("get", &property_test::get)
  98                         .property("a", &property_test::get, &property_test::set)
  99                         .property("str", &property_test::get_str, &property_test::set_str)
 100                         .property("A", &property_test::getA, &property_test::setA)
 101                         .def_readonly("o", &property_test::o)
 102                         .property("free", &free_getter, &free_setter)
 103                         .def_readwrite("b", &property_test::b)
 104                         .def_readwrite("c", &property_test::c)
 105                         .def_readwrite("c_ref", &property_test::c_ref),
 106
 107                 class_<A>("A")
 108                         .def(constructor<>())
 109                         .property("a", &A::get),
 110
 111                 class_<B, A>("B")
 112                         .def(constructor<>())
 113                         .property("x", &A::get),
 114
 115                 class_<C>("C")
 116                         .def(constructor<>())
 117                         .def_readwrite("a", &C::a)
 118         ];
 119
 120     module(L) [
 121         class_<borrowed_attribute>("borrowed_attribute")
 122             .def(constructor<>()),
 123
 124         class_<attribute_holder>("attribute_holder")
 125             .def(constructor<borrowed_attribute*>())
 126             .def_readwrite(
 127                 "borrowed", &attribute_holder::borrowed, no_dependency)
 128     ];
 129
 130         DOSTRING(L, "test = property()\n");
 131
 132         DOSTRING(L,
 133                 "test.a = 5\n"
 134                 "assert(test.a == 5)");
 135
 136         DOSTRING(L, "assert(test.o == 6)");
 137
 138         DOSTRING(L,
 139                 "test.new_member = 'foo'\n"
 140                 "assert(test.new_member == 'foo')");
 141
 142         DOSTRING(L,
 143                 "property.new_member2 = 'bar'\n"
 144                 "assert(property.new_member2 == 'bar')");
 145
 146         DOSTRING(L,
 147                 "b = property()\n"
 148                 "assert(b.new_member2 == 'bar')");
 149
 150         DOSTRING(L,
 151                 "test.str = 'foobar'\n"
 152                 "assert(test.str == 'foobar')\n");
 153
 154     DOSTRING(L,
 155         "test.free = 6\n"
 156         "assert(test.free == 6)\n");
 157
 158     DOSTRING(L,
 159         "test.b = 3\n"
 160         "assert(test.b == 3)\n");
 161
 162         DOSTRING(L, "test.c.a = 1\n"
 163                 "assert(test.c.a == 1)\n"
 164                 "assert(test.c_ref.a == 1)");
 165
 166         DOSTRING(L, "t1 = property()\n"
 167                 "c = t1.c\n"
 168                 "c2 = t1.c_ref\n"
 169                 "c.a = 1\n"
 170                 "t1 = nil\n"
 171                 "collectgarbage()\n"
 172                 "collectgarbage()\n"
 173                 "assert(c.a == 1)\n"
 174                 "assert(c2.a == 1)");
 175
 176         DOSTRING(L,
 177                 "a = B()\n");
 178
 179         DOSTRING(L,
 180                 "assert(a.a == 5)\n");
 181
 182         DOSTRING(L,
 183                 "assert(a.x == 5)\n");
 184
 185     DOSTRING(L,
 186         "borrowed = borrowed_attribute()\n"
 187         "holder = attribute_holder(borrowed)\n"
 188     );
 189
 190     TEST_CHECK(borrowed_attribute::count == 1);
 191     TEST_CHECK(attribute_holder::count == 1);
 192
 193     DOSTRING(L,
 194         "holder.borrowed = borrowed\n"
 195         "borrowed2 = holder.borrowed\n"
 196         "holder = nil\n"
 197         "collectgarbage()\n"
 198     );
 199
 200     TEST_CHECK(borrowed_attribute::count == 1);
 201     TEST_CHECK(attribute_holder::count == 0);
 202 }
 203