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Diffstat (limited to 'state.ipp')
| -rw-r--r-- | state.ipp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/state.ipp b/state.ipp new file mode 100644 index 000000000000..76f47a643194 --- /dev/null +++ b/state.ipp @@ -0,0 +1,67 @@ +// 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) |