lua_getinfo[-(0|1), +(0|1|2), e] int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);

lua_rawgeti[-0, +1, –] int lua_rawgeti (lua_State *L, int index, lua_Integer n); Pushes onto the stack

lua_isnoneornil[-0, +0, –] int lua_isnoneornil (lua_State *L, int index); Returns 1 if the given index

luaL_newmetatable[-0, +1, m] int luaL_newmetatable (lua_State *L, const char *tname); If the registry

string.pack (fmt, v1, v2, ···) Returns a binary string containing the values v1, v2, etc. packed (that is, serialized in binary form) according to the

lua_Reader typedef const char * (*lua_Reader) (lua_State *L, void *data,

table.sort (list [, comp]) Sorts list elements in a given order, in-place, from list[1] to list[#list]. If comp is given, then

lua_newuserdata[-0, +1, m] void *lua_newuserdata (lua_State *L, size_t size); This function allocates

lua_upvalueindex[-0, +0, –] int lua_upvalueindex (int i); Returns the pseudo-index that represents the

debug.getinfo ([thread,] f [, what]) Returns a table with information about a function. You can give the function directly or you can give a number as the value of f