test/test_null_pointer.cpp

   1 // Copyright (c) 2003 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 : counted_type<A>
  27 {
  28         A* f() { return 0; }
  29 };
  30
  31 A* return_pointer()
  32 {
  33         return 0;
  34 }
  35
  36 COUNTER_GUARD(A);
  37
  38 void test_main(lua_State* L)
  39 {
  40         using namespace luabind;
  41
  42         module(L)
  43         [
  44                 class_<A>("A")
  45                         .def(constructor<>())
  46                         .def("f", &A::f),
  47
  48                 def("return_pointer", &return_pointer)
  49         ];
  50
  51
  52         DOSTRING(L,
  53                 "e = return_pointer()\n"
  54                 "assert(e == nil)");
  55
  56         DOSTRING(L,
  57                 "a = A()\n"
  58                 "e = a:f()\n"
  59                 "assert(e == nil)");
  60 }