782 f_chdir(typval_T *argvars, typval_T *rettv)  in f_chdir()  argument
790     if (argvars[0].v_type != VAR_STRING)  in f_chdir()
795 	    (void) check_for_string_arg(argvars, 0);  in f_chdir()
818     if (!changedir_func(argvars[0].vval.v_string, TRUE, scope))  in f_chdir()
827 f_delete(typval_T *argvars, typval_T *rettv)  in f_delete()  argument
838 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_delete()
839 		|| check_for_opt_string_arg(argvars, 1) == FAIL))  in f_delete()
842     name = tv_get_string(&argvars[0]);  in f_delete()
849     if (argvars[1].v_type != VAR_UNKNOWN)  in f_delete()
850 	flags = tv_get_string_buf(&argvars[1], nbuf);  in f_delete()
871 f_executable(typval_T *argvars, typval_T *rettv)  in f_executable()  argument
873     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_executable()
877     rettv->vval.v_number = mch_can_exe(tv_get_string(&argvars[0]), NULL, TRUE);  in f_executable()
884 f_exepath(typval_T *argvars, typval_T *rettv)  in f_exepath()  argument
888     if (in_vim9script() && check_for_nonempty_string_arg(argvars, 0) == FAIL)  in f_exepath()
890     (void)mch_can_exe(tv_get_string(&argvars[0]), &p, TRUE);  in f_exepath()
899 f_filereadable(typval_T *argvars, typval_T *rettv)  in f_filereadable()  argument
905     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_filereadable()
911     p = tv_get_string(&argvars[0]);  in f_filereadable()
929 f_filewritable(typval_T *argvars, typval_T *rettv)  in f_filewritable()  argument
931     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_filewritable()
933     rettv->vval.v_number = filewritable(tv_get_string(&argvars[0]));  in f_filewritable()
938     typval_T	*argvars UNUSED,  in findfilendir()
956 	    && (check_for_nonempty_string_arg(argvars, 0) == FAIL  in findfilendir()
957 		|| check_for_opt_string_arg(argvars, 1) == FAIL  in findfilendir()
958 		|| (argvars[1].v_type != VAR_UNKNOWN  in findfilendir()
959 		    && check_for_opt_number_arg(argvars, 2) == FAIL)))  in findfilendir()
963     fname = tv_get_string(&argvars[0]);  in findfilendir()
965     if (argvars[1].v_type != VAR_UNKNOWN)  in findfilendir()
967 	p = tv_get_string_buf_chk(&argvars[1], pathbuf);  in findfilendir()
975 	    if (argvars[2].v_type != VAR_UNKNOWN)  in findfilendir()
976 		count = (int)tv_get_number_chk(&argvars[2], &error);  in findfilendir()
1013 f_finddir(typval_T *argvars, typval_T *rettv)  in f_finddir()  argument
1015     findfilendir(argvars, rettv, FINDFILE_DIR);  in f_finddir()
1022 f_findfile(typval_T *argvars, typval_T *rettv)  in f_findfile()  argument
1024     findfilendir(argvars, rettv, FINDFILE_FILE);  in f_findfile()
1031 f_fnamemodify(typval_T *argvars, typval_T *rettv)  in f_fnamemodify()  argument
1041 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_fnamemodify()
1042 		|| check_for_string_arg(argvars, 1) == FAIL))  in f_fnamemodify()
1045     fname = tv_get_string_chk(&argvars[0]);  in f_fnamemodify()
1046     mods = tv_get_string_buf_chk(&argvars[1], buf);  in f_fnamemodify()
1082 f_getcwd(typval_T *argvars, typval_T *rettv)  in f_getcwd()  argument
1093 	    && (check_for_opt_number_arg(argvars, 0) == FAIL  in f_getcwd()
1094 		|| (argvars[0].v_type != VAR_UNKNOWN  in f_getcwd()
1095 		    && check_for_opt_number_arg(argvars, 1) == FAIL)))  in f_getcwd()
1098     if (argvars[0].v_type == VAR_NUMBER  in f_getcwd()
1099 	    && argvars[0].vval.v_number == -1  in f_getcwd()
1100 	    && argvars[1].v_type == VAR_UNKNOWN)  in f_getcwd()
1103 	wp = find_tabwin(&argvars[0], &argvars[1], &tp);  in f_getcwd()
1106 					   && argvars[0].v_type != VAR_UNKNOWN)  in f_getcwd()
1109 					   && argvars[0].v_type != VAR_UNKNOWN)  in f_getcwd()
1113 	if (globaldir != NULL && argvars[0].v_type != VAR_UNKNOWN)  in f_getcwd()
1155 f_getfperm(typval_T *argvars, typval_T *rettv)  in f_getfperm()  argument
1162     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_getfperm()
1165     fname = tv_get_string(&argvars[0]);  in f_getfperm()
1177 f_getfsize(typval_T *argvars, typval_T *rettv)  in f_getfsize()  argument
1182     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_getfsize()
1185     fname = tv_get_string(&argvars[0]);  in f_getfsize()
1207 f_getftime(typval_T *argvars, typval_T *rettv)  in f_getftime()  argument
1212     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_getftime()
1215     fname = tv_get_string(&argvars[0]);  in f_getftime()
1253 f_getftype(typval_T *argvars, typval_T *rettv)  in f_getftype()  argument
1259     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_getftype()
1262     fname = tv_get_string(&argvars[0]);  in f_getftype()
1274 f_glob(typval_T *argvars, typval_T *rettv)  in f_glob()  argument
1281 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_glob()
1282 		|| check_for_opt_bool_arg(argvars, 1) == FAIL  in f_glob()
1283 		|| (argvars[1].v_type != VAR_UNKNOWN  in f_glob()
1284 		    && (check_for_opt_bool_arg(argvars, 2) == FAIL  in f_glob()
1285 			|| (argvars[2].v_type != VAR_UNKNOWN  in f_glob()
1286 			    && check_for_opt_bool_arg(argvars, 3) == FAIL)))))  in f_glob()
1292     if (argvars[1].v_type != VAR_UNKNOWN)  in f_glob()
1294 	if (tv_get_bool_chk(&argvars[1], &error))  in f_glob()
1296 	if (argvars[2].v_type != VAR_UNKNOWN)  in f_glob()
1298 	    if (tv_get_bool_chk(&argvars[2], &error))  in f_glob()
1300 	    if (argvars[3].v_type != VAR_UNKNOWN  in f_glob()
1301 				    && tv_get_bool_chk(&argvars[3], &error))  in f_glob()
1312 	    rettv->vval.v_string = ExpandOne(&xpc, tv_get_string(&argvars[0]),  in f_glob()
1318 	  ExpandOne(&xpc, tv_get_string(&argvars[0]),  in f_glob()
1334 f_glob2regpat(typval_T *argvars, typval_T *rettv)  in f_glob2regpat()  argument
1339     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_glob2regpat()
1342     pat = tv_get_string_buf_chk_strict(&argvars[0], buf, in_vim9script());  in f_glob2regpat()
1352 f_globpath(typval_T *argvars, typval_T *rettv)  in f_globpath()  argument
1362 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_globpath()
1363 		|| check_for_string_arg(argvars, 1) == FAIL  in f_globpath()
1364 		|| check_for_opt_bool_arg(argvars, 2) == FAIL  in f_globpath()
1365 		|| (argvars[2].v_type != VAR_UNKNOWN  in f_globpath()
1366 		    && (check_for_opt_bool_arg(argvars, 3) == FAIL  in f_globpath()
1367 			|| (argvars[3].v_type != VAR_UNKNOWN  in f_globpath()
1368 			    && check_for_opt_bool_arg(argvars, 4) == FAIL)))))  in f_globpath()
1371     file = tv_get_string_buf_chk(&argvars[1], buf1);  in f_globpath()
1376     if (argvars[2].v_type != VAR_UNKNOWN)  in f_globpath()
1378 	if (tv_get_bool_chk(&argvars[2], &error))  in f_globpath()
1380 	if (argvars[3].v_type != VAR_UNKNOWN)  in f_globpath()
1382 	    if (tv_get_bool_chk(&argvars[3], &error))  in f_globpath()
1384 	    if (argvars[4].v_type != VAR_UNKNOWN  in f_globpath()
1385 				    && tv_get_bool_chk(&argvars[4], &error))  in f_globpath()
1392 	globpath(tv_get_string(&argvars[0]), file, &ga, flags);  in f_globpath()
1409 f_isdirectory(typval_T *argvars, typval_T *rettv)  in f_isdirectory()  argument
1411     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_isdirectory()
1414     rettv->vval.v_number = mch_isdir(tv_get_string(&argvars[0]));  in f_isdirectory()
1451 f_mkdir(typval_T *argvars, typval_T *rettv)  in f_mkdir()  argument
1462 	    && (check_for_nonempty_string_arg(argvars, 0) == FAIL  in f_mkdir()
1463 		|| check_for_opt_string_arg(argvars, 1) == FAIL  in f_mkdir()
1464 		|| (argvars[1].v_type != VAR_UNKNOWN  in f_mkdir()
1465 		    && check_for_opt_number_arg(argvars, 2) == FAIL)))  in f_mkdir()
1468     dir = tv_get_string_buf(&argvars[0], buf);  in f_mkdir()
1476     if (argvars[1].v_type != VAR_UNKNOWN)  in f_mkdir()
1478 	if (argvars[2].v_type != VAR_UNKNOWN)  in f_mkdir()
1480 	    prot = (int)tv_get_number_chk(&argvars[2], NULL);  in f_mkdir()
1484 	if (STRCMP(tv_get_string(&argvars[1]), "p") == 0)  in f_mkdir()
1502 f_pathshorten(typval_T *argvars, typval_T *rettv)  in f_pathshorten()  argument
1508 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_pathshorten()
1509 		|| check_for_opt_number_arg(argvars, 1) == FAIL))  in f_pathshorten()
1512     if (argvars[1].v_type != VAR_UNKNOWN)  in f_pathshorten()
1514 	trim_len = (int)tv_get_number(&argvars[1]);  in f_pathshorten()
1520     p = tv_get_string_chk(&argvars[0]);  in f_pathshorten()
1629 f_readdir(typval_T *argvars, typval_T *rettv)  in f_readdir()  argument
1643 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_readdir()
1644 		|| (argvars[1].v_type != VAR_UNKNOWN  in f_readdir()
1645 		    && check_for_opt_dict_arg(argvars, 2) == FAIL)))  in f_readdir()
1648     path = tv_get_string(&argvars[0]);  in f_readdir()
1649     expr = &argvars[1];  in f_readdir()
1651     if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN &&  in f_readdir()
1652 	    readdirex_dict_arg(&argvars[2], &sort) == FAIL)  in f_readdir()
1683 f_readdirex(typval_T *argvars, typval_T *rettv)  in f_readdirex()  argument
1696 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_readdirex()
1697 		|| (argvars[1].v_type != VAR_UNKNOWN  in f_readdirex()
1698 		    && check_for_opt_dict_arg(argvars, 2) == FAIL)))  in f_readdirex()
1701     path = tv_get_string(&argvars[0]);  in f_readdirex()
1702     expr = &argvars[1];  in f_readdirex()
1704     if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN &&  in f_readdirex()
1705 	    readdirex_dict_arg(&argvars[2], &sort) == FAIL)  in f_readdirex()
1726 read_file_or_blob(typval_T *argvars, typval_T *rettv, int always_blob)  in read_file_or_blob()  argument
1744     if (argvars[1].v_type != VAR_UNKNOWN)  in read_file_or_blob()
1746 	if (STRCMP(tv_get_string(&argvars[1]), "b") == 0)  in read_file_or_blob()
1748 	if (STRCMP(tv_get_string(&argvars[1]), "B") == 0)  in read_file_or_blob()
1751 	if (argvars[2].v_type != VAR_UNKNOWN)  in read_file_or_blob()
1752 	    maxline = (long)tv_get_number(&argvars[2]);  in read_file_or_blob()
1760     fname = tv_get_string(&argvars[0]);  in read_file_or_blob()
1956 f_readblob(typval_T *argvars, typval_T *rettv)  in f_readblob()  argument
1958     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_readblob()
1961     read_file_or_blob(argvars, rettv, TRUE);  in f_readblob()
1968 f_readfile(typval_T *argvars, typval_T *rettv)  in f_readfile()  argument
1971 	    && (check_for_nonempty_string_arg(argvars, 0) == FAIL  in f_readfile()
1972 		|| check_for_opt_string_arg(argvars, 1) == FAIL  in f_readfile()
1973 		|| (argvars[1].v_type != VAR_UNKNOWN  in f_readfile()
1974 		    && check_for_opt_number_arg(argvars, 2) == FAIL)))  in f_readfile()
1977     read_file_or_blob(argvars, rettv, FALSE);  in f_readfile()
1984 f_resolve(typval_T *argvars, typval_T *rettv)  in f_resolve()  argument
1991     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)  in f_resolve()
1994     p = tv_get_string(&argvars[0]);  in f_resolve()
2195 f_tempname(typval_T *argvars UNUSED, typval_T *rettv)  in f_tempname()
2228 f_writefile(typval_T *argvars, typval_T *rettv)  in f_writefile()  argument
2247 	    && (check_for_list_or_blob_arg(argvars, 0) == FAIL  in f_writefile()
2248 		|| check_for_string_arg(argvars, 1) == FAIL  in f_writefile()
2249 		|| check_for_opt_string_arg(argvars, 2) == FAIL))  in f_writefile()
2252     if (argvars[0].v_type == VAR_LIST)  in f_writefile()
2254 	list = argvars[0].vval.v_list;  in f_writefile()
2262     else if (argvars[0].v_type == VAR_BLOB)  in f_writefile()
2264 	blob = argvars[0].vval.v_blob;  in f_writefile()
2275     if (argvars[2].v_type != VAR_UNKNOWN)  in f_writefile()
2277 	char_u *arg2 = tv_get_string_chk(&argvars[2]);  in f_writefile()
2293     fname = tv_get_string_chk(&argvars[1]);  in f_writefile()
2503 f_browse(typval_T *argvars UNUSED, typval_T *rettv)  in f_browse()
2515 	    && (check_for_bool_arg(argvars, 0) == FAIL  in f_browse()
2516 		|| check_for_string_arg(argvars, 1) == FAIL  in f_browse()
2517 		|| check_for_string_arg(argvars, 2) == FAIL  in f_browse()
2518 		|| check_for_string_arg(argvars, 3) == FAIL))  in f_browse()
2521     save = (int)tv_get_number_chk(&argvars[0], &error);  in f_browse()
2522     title = tv_get_string_chk(&argvars[1]);  in f_browse()
2523     initdir = tv_get_string_buf_chk(&argvars[2], buf);  in f_browse()
2524     defname = tv_get_string_buf_chk(&argvars[3], buf2);  in f_browse()
2542 f_browsedir(typval_T *argvars UNUSED, typval_T *rettv)  in f_browsedir()
2550 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_browsedir()
2551 		|| check_for_string_arg(argvars, 1) == FAIL))  in f_browsedir()
2554     title = tv_get_string_chk(&argvars[0]);  in f_browsedir()
2555     initdir = tv_get_string_buf_chk(&argvars[1], buf);  in f_browsedir()