test/test_yield.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 namespace
  27 {
  28         struct test_class : counted_type<test_class>
  29         {
  30                 test_class(): n(0) {}
  31
  32                 int f() const
  33                 {
  34                         return const_cast<int&>(n)++;
  35                 }
  36
  37                 int n;
  38         };
  39
  40         int f(int a)
  41         {
  42                 return 9;
  43         }
  44
  45         int j(lua_State* L)
  46         {
  47                 lua_pushnumber(L, 9);
  48                 return lua_yield(L, 1);
  49         }
  50
  51         void f() {}
  52 }
  53
  54 #include <iostream>
  55
  56 void test_yield()
  57 {
  58     COUNTER_GUARD(test_class);
  59
  60         lua_state L;
  61
  62         using namespace luabind;
  63
  64         module(L)
  65         [
  66                 class_<test_class>("test")
  67                         .def(constructor<>())
  68                         .def("f", &test_class::f, luabind::yield)
  69         ];
  70
  71 /*
  72         DOSTRING(L, "function g() a = test() for i = 1, 10 do print(a:f()) end end");
  73
  74         lua_pushstring(L, "j");
  75         lua_pushcclosure(L, j, 0);
  76         lua_settable(L, LUA_GLOBALSINDEX);
  77
  78         lua_State* thread = lua_newthread(L);
  79         lua_pushstring(thread, "g");
  80         lua_gettable(thread, LUA_GLOBALSINDEX);
  81
  82         if (lua_resume(thread, 0))
  83         {
  84                 std::cout << "error: " << lua_tostring(thread, -1) << '\n';
  85         }
  86
  87         for (int i = 0; i < 10; ++i)
  88         {
  89                 std::cout << "iteration: " << i << ", top: " << lua_gettop(thread) << '\n';
  90
  91                 lua_resume(thread, lua_gettop(thread));
  92         }
  93 */
  94 }
  95