luaL_newmetatable, luaL_getmetatable, luaL_checkudata,
1 luaL_newmetatable
int luaL_newmetatable (lua_State *L, const char *tname);
¸ÞŸÅ×À̺íÀ» »ý¼ºÇؼ, ½ºÅÿ¡´Ù Ǫ½¬ÇÑ´Ù. tname Àμö´Â ÀÌ ¸ÞŸ Å×À̺íÀ» °¡¸®Å°´Â µ¥ »ç¿ëÇÒ ÀÏÁ¾ÀÇ º°¸í(alias)ÀÌ´Ù. ÀÌ ÇÔ¼ö¸¦ È£ÃâÇÏ¸é ½ºÅÿ¡ ¸ÞŸÅ×À̺íÀÌ Çª½¬µÇ´Â °Í ¸»°íµµ, ·¹Áö½ºÆ®¸®¿¡ º°¸í°ú ¸ÞŸÅ×À̺íÀÌ ¼·Î¸¦ Ű·Î¼ Ãß°¡µÈ´Ù. ¸»ÀÌ Á» ÀÌ»óÇѵ¥, ´ë° ´ÙÀ½°ú °°´Ù.
registry[alias] = metatable
registry[metatable] = alias
2 luaL_getmetatable
void luaL_getmetatable (lua_State *L, const char *tname);
ÁÖ¾îÁø º°¸íÀ» °¡Áø ¸ÞŸÅ×À̺íÀ» ·¹Áö½ºÆ®¸®·ÎºÎÅÍ Àоî¿Í ½ºÅÿ¡´Ù Ǫ½¬ÇÑ´Ù.
3 luaL_checkudata
void *luaL_checkudata (lua_State *L, int ud, const char *tname);
ud À妽ºÀÇ ¾ÆÀÌÅÛÀÌ ÁÖ¾îÁø º°¸íÀÇ ¸ÞŸ Å×À̺íÀ» °¡Áø userdata ÀÎÁö¸¦ üũÇÑ´Ù. ¸Â´Ù¸é userdataÀÇ Æ÷ÀÎÅ͸¦ ¹ÝȯÇϰí, ¾Æ´Ï¶ó¸é NULLÀ» ¹ÝȯÇÑ´Ù. userdata°¡ ¾Æ´Ñ °æ¿ì¿¡µµ NULLÀ» ¹ÝȯÇÑ´Ù.
SeriousMoin v1 (koMoinMoin 1.0a4 Modified)