luabind/detail/debug.hpp

   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 #ifndef LUABIND_DEBUG_HPP_INCLUDED
  24 #define LUABIND_DEBUG_HPP_INCLUDED
  25
  26 #ifndef NDEBUG
  27
  28 #include <luabind/lua_include.hpp>
  29 #include <cassert>
  30
  31 namespace luabind { namespace detail
  32 {
  33         struct stack_checker_type
  34         {
  35                 stack_checker_type(lua_State* L)
  36                         : m_L(L)
  37                         , m_stack(lua_gettop(m_L))
  38                 {}
  39
  40                 ~stack_checker_type()
  41                 {
  42                         assert(m_stack == lua_gettop(m_L));
  43                 }
  44
  45                 lua_State* m_L;
  46                 int m_stack;
  47         };
  48
  49 }}
  50 #define LUABIND_CHECK_STACK(L) luabind::detail::stack_checker_type stack_checker_object(L)
  51 #else
  52 #define LUABIND_CHECK_STACK(L) do {} while (0)
  53 #endif
  54
  55 #endif // LUABIND_DEBUG_HPP_INCLUDED