test/test_abstract_base.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
  25 #include <luabind/luabind.hpp>
  26
  27 using namespace luabind;
  28
  29 struct abstract
  30 {
  31     virtual ~abstract() {}
  32     virtual std::string hello() = 0;
  33 };
  34
  35 COUNTER_GUARD(abstract);
  36
  37 struct abstract_wrap : abstract, wrap_base
  38 {
  39     std::string hello()
  40     {
  41         return call_member<std::string>(this, "hello");
  42     }
  43
  44     static void default_hello(abstract const&)
  45     {
  46         throw std::runtime_error("abstract function");
  47     }
  48 };
  49
  50 std::string call_hello(abstract& a)
  51 {
  52     return a.hello();
  53 }
  54
  55 void test_main(lua_State* L)
  56 {
  57     module(L)
  58     [
  59         class_<abstract, abstract_wrap>("abstract")
  60             .def(constructor<>())
  61             .def("hello", &abstract::hello),
  62
  63         def("call_hello", &call_hello)
  64     ];
  65
  66     DOSTRING_EXPECTED(L,
  67         "x = abstract()\n"
  68         "x:hello()\n"
  69       , "pure virtual function called");
  70
  71     DOSTRING_EXPECTED(L,
  72         "call_hello(x)\n"
  73       , "pure virtual function called");
  74
  75     DOSTRING(L,
  76         "class 'concrete' (abstract)\n"
  77         "  function concrete:__init()\n"
  78         "      super()\n"
  79         "  end\n"
  80
  81         "  function concrete:hello()\n"
  82         "      return 'hello from lua'\n"
  83         "  end\n");
  84
  85     DOSTRING(L,
  86         "y = concrete()\n"
  87         "y:hello()\n");
  88
  89     DOSTRING(L, "call_hello(y)\n");
  90 }
  91