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