EQStream abstraction layer

libs/luabind/luabind/copy_policy.hpp

@@ -0,0 +1,61 @@
+// Copyright Daniel Wallin 2008. Use, modification and distribution is
+// subject to the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef LUABIND_COPY_POLICY_081021_HPP
+# define LUABIND_COPY_POLICY_081021_HPP
+
+# include <luabind/detail/policy.hpp>
+
+namespace luabind {
+
+namespace detail
+{
+
+  struct copy_converter
+  {
+      template <class T>
+      void apply(lua_State* L, T const& x)
+      {
+          value_converter().apply(L, x);
+      }
+
+      template <class T>
+      void apply(lua_State* L, T* x)
+      {
+          if (!x)
+              lua_pushnil(L);
+          else
+              apply(L, *x);
+      }
+  };
+
+  template <int N>
+  struct copy_policy : conversion_policy<N>
+  {
+      static void precall(lua_State*, index_map const&)
+      {}
+
+      static void postcall(lua_State*, index_map const&)
+      {}
+
+      template <class T, class Direction>
+      struct apply
+      {
+          typedef copy_converter type;
+      };
+  };
+
+} // namespace detail
+
+template <int N>
+detail::policy_cons<detail::copy_policy<N>, detail::null_type>
+copy(LUABIND_PLACEHOLDER_ARG(N))
+{
+    return detail::policy_cons<detail::copy_policy<N>, detail::null_type>();
+}
+
+} // namespace luabind
+
+#endif // LUABIND_COPY_POLICY_081021_HPP
+