root / lab4 / .minix-src / include / lutok / state.ipp @ 13
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| 1 | 13 | up20180614 | // Copyright 2011 Google Inc. |
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| 2 | // All rights reserved. |
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| 3 | // |
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| 4 | // Redistribution and use in source and binary forms, with or without |
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| 5 | // modification, are permitted provided that the following conditions are |
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| 6 | // met: |
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| 7 | // |
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| 8 | // * Redistributions of source code must retain the above copyright |
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| 9 | // notice, this list of conditions and the following disclaimer. |
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| 10 | // * Redistributions in binary form must reproduce the above copyright |
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| 11 | // notice, this list of conditions and the following disclaimer in the |
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| 12 | // documentation and/or other materials provided with the distribution. |
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| 13 | // * Neither the name of Google Inc. nor the names of its contributors |
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| 14 | // may be used to endorse or promote products derived from this software |
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| 15 | // without specific prior written permission. |
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| 16 | // |
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| 17 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 18 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 19 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 20 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 21 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 22 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 23 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 27 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | |||
| 29 | #if !defined(LUTOK_STATE_IPP) |
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| 30 | #define LUTOK_STATE_IPP |
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| 31 | |||
| 32 | #include <lutok/state.hpp> |
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| 33 | |||
| 34 | namespace lutok {
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| 35 | |||
| 36 | |||
| 37 | /// Wrapper around lua_newuserdata. |
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| 38 | /// |
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| 39 | /// This allocates an object as big as the size of the provided Type. |
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| 40 | /// |
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| 41 | /// \return The pointer to the allocated userdata object. |
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| 42 | /// |
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| 43 | /// \warning Terminates execution if there is not enough memory. |
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| 44 | template< typename Type > |
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| 45 | Type* |
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| 46 | state::new_userdata(void) |
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| 47 | {
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| 48 | return static_cast< Type* >(new_userdata_voidp(sizeof(Type))); |
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| 49 | } |
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| 50 | |||
| 51 | |||
| 52 | /// Wrapper around lua_touserdata. |
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| 53 | /// |
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| 54 | /// \param index The second parameter to lua_touserdata. |
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| 55 | /// |
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| 56 | /// \return The return value of lua_touserdata. |
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| 57 | template< typename Type > |
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| 58 | Type* |
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| 59 | state::to_userdata(const int index) |
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| 60 | {
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| 61 | return static_cast< Type* >(to_userdata_voidp(index)); |
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| 62 | } |
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| 63 | |||
| 64 | |||
| 65 | } // namespace lutok |
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| 66 | |||
| 67 | #endif // !defined(LUTOK_STATE_IPP) |