Function createmeta

deps/lua/src/liolib.c:510–515

static void createmeta (lua_State *L) {
  luaL_newmetatable(L, LUA_FILEHANDLE);  /* create metatable for file handles */
  lua_pushvalue(L, -1);  /* push metatable */
  lua_setfield(L, -2, "__index");  /* metatable.__index = metatable */
  luaL_register(L, NULL, flib);  /* file methods */
}


static void createstdfile (lua_State *L, FILE *f, int k, const char *fname) {