luabind/scope.hpp

   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 #ifndef NEW_SCOPE_040211_HPP
  24 #define NEW_SCOPE_040211_HPP
  25
  26 #include <luabind/prefix.hpp>
  27 #include <luabind/lua_include.hpp>
  28 #include <memory>
  29
  30 namespace luabind { namespace detail {
  31
  32     struct registration
  33     {
  34         registration();
  35         virtual ~registration();
  36
  37     protected:
  38         virtual void register_(lua_State*) const = 0;
  39
  40     private:
  41         friend struct scope;
  42         registration* m_next;
  43     };
  44
  45     struct scope
  46     {
  47         scope();
  48         explicit scope(std::auto_ptr<registration> reg);
  49         scope(scope const& other_);
  50         ~scope();
  51
  52         scope& operator,(scope s);
  53
  54         void register_(lua_State* L) const;
  55
  56     private:
  57         registration* m_chain;
  58     };
  59
  60 }} // namespace luabind::detail
  61
  62 namespace luabind {
  63
  64     class namespace_ : public detail::scope
  65     {
  66     public:
  67         explicit namespace_(char const* name);
  68         namespace_& operator[](detail::scope s);
  69
  70     private:
  71         struct registration_;
  72         registration_* m_registration;
  73     };
  74
  75     class module_
  76     {
  77     public:
  78         module_(lua_State* L_, char const* name);
  79         void operator[](detail::scope s);
  80
  81     private:
  82         lua_State* m_state;
  83         char const* m_name;
  84     };
  85
  86     inline module_ module(lua_State* L, char const* name = 0)
  87     {
  88         return module_(L, name);
  89     }
  90
  91 } // namespace luabind
  92
  93 #endif // NEW_SCOPE_040211_HPP
  94