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 concrete : abstract
  38 {
  39     std::string hello()
  40     {
  41         return "test string";
  42     }
  43 };
  44
  45 struct abstract_wrap : abstract, wrap_base
  46 {
  47     std::string hello()
  48     {
  49         return call_member<std::string>(this, "hello");
  50     }
  51
  52     static void default_hello(abstract const&)
  53     {
  54         throw std::runtime_error("abstract function");
  55     }
  56 };
  57
  58 std::string call_hello(abstract& a)
  59 {
  60     return a.hello();
  61 }
  62
  63 abstract& return_abstract_ref()
  64 {
  65         static concrete c;
  66         return c;
  67 }
  68
  69 abstract const& return_const_abstract_ref()
  70 {
  71         static concrete c;
  72         return c;
  73 }
  74
  75
  76 void test_main(lua_State* L)
  77 {
  78     module(L)
  79     [
  80         class_<abstract, abstract_wrap>("abstract")
  81             .def(constructor<>())
  82             .def("hello", &abstract::hello),
  83
  84         def("call_hello", &call_hello),
  85                   def("return_abstract_ref", &return_abstract_ref),
  86                   def("return_const_abstract_ref", &return_const_abstract_ref)
  87     ];
  88
  89     DOSTRING_EXPECTED(L,
  90         "x = abstract()\n"
  91         "x:hello()\n"
  92       , "std::runtime_error: 'Attempt to call nonexistent function'");
  93
  94     DOSTRING_EXPECTED(L,
  95         "call_hello(x)\n"
  96       , "std::runtime_error: 'Attempt to call nonexistent function'");
  97
  98     DOSTRING(L,
  99         "class 'concrete' (abstract)\n"
 100         "  function concrete:__init()\n"
 101         "      abstract.__init(self)\n"
 102         "  end\n"
 103
 104         "  function concrete:hello()\n"
 105         "      return 'hello from lua'\n"
 106         "  end\n");
 107
 108     DOSTRING(L,
 109         "y = concrete()\n"
 110         "y:hello()\n");
 111
 112     DOSTRING(L, "call_hello(y)\n");
 113 }
 114