142 typedef luaL_Stream LStream;  typedef
145 #define tolstream(L)	((LStream *)luaL_checkudata(L, 1, LUA_FILEHANDLE))
151   LStream *p;  in io_type()
153   p = (LStream *)luaL_testudata(L, 1, LUA_FILEHANDLE);  in io_type()
165   LStream *p = tolstream(L);  in f_tostring()
175   LStream *p = tolstream(L);  in tofile()
188 static LStream *newprefile (lua_State *L) {  in newprefile()
189   LStream *p = (LStream *)lua_newuserdata(L, sizeof(LStream));  in newprefile()
202   LStream *p = tolstream(L);  in aux_close()
223   LStream *p = tolstream(L);  in f_gc()
234   LStream *p = tolstream(L);  in io_fclose()
240 static LStream *newfile (lua_State *L) {  in newfile()
241   LStream *p = newprefile(L);  in newfile()
249   LStream *p = newfile(L);  in opencheck()
259   LStream *p = newfile(L);  in io_open()
271   LStream *p = tolstream(L);  in io_pclose()
279   LStream *p = newprefile(L);  in io_popen()
287   LStream *p = newfile(L);  in io_tmpfile()
294   LStream *p;  in getiofile()
296   p = (LStream *)lua_touserdata(L, -1);  in getiofile()
590   LStream *p = (LStream *)lua_touserdata(L, lua_upvalueindex(1));  in io_readline()
746   LStream *p = tolstream(L);  in io_noclose()
756   LStream *p = newprefile(L);  in createstdfile()