vendor/lutok/0.4-8f8eaefvendor/lutok

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diff --git a/state.ipp b/state.ipp
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+// Copyright 2011 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+//   notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+//   notice, this list of conditions and the following disclaimer in the
+//   documentation and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors
+//   may be used to endorse or promote products derived from this software
+//   without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#if !defined(LUTOK_STATE_IPP)
+#define LUTOK_STATE_IPP
+
+#include <lutok/state.hpp>
+
+namespace lutok {
+
+
+/// Wrapper around lua_newuserdata.
+///
+/// This allocates an object as big as the size of the provided Type.
+///
+/// \return The pointer to the allocated userdata object.
+///
+/// \warning Terminates execution if there is not enough memory.
+template< typename Type >
+Type*
+state::new_userdata(void)
+{
+    return static_cast< Type* >(new_userdata_voidp(sizeof(Type)));
+}
+
+
+/// Wrapper around lua_touserdata.
+///
+/// \param index The second parameter to lua_touserdata.
+///
+/// \return The return value of lua_touserdata.
+template< typename Type >
+Type*
+state::to_userdata(const int index)
+{
+    return static_cast< Type* >(to_userdata_voidp(index));
+}
+
+
+}  // namespace lutok
+
+#endif  // !defined(LUTOK_STATE_IPP)