959 f_clearmatches(typval_T *argvars UNUSED, typval_T *rettv UNUSED)  in f_clearmatches()
964     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_clearmatches()
967     win = get_optional_window(argvars, 0);  in f_clearmatches()
977 f_getmatches(typval_T *argvars UNUSED, typval_T *rettv UNUSED)  in f_getmatches()
985     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_getmatches()
988     win = get_optional_window(argvars, 0);  in f_getmatches()
1049 f_setmatches(typval_T *argvars UNUSED, typval_T *rettv UNUSED)  in f_setmatches()
1061 	    && (check_for_list_arg(argvars, 0) == FAIL  in f_setmatches()
1062 		|| check_for_opt_number_arg(argvars, 1) == FAIL))  in f_setmatches()
1065     if (argvars[0].v_type != VAR_LIST)  in f_setmatches()
1070     win = get_optional_window(argvars, 1);  in f_setmatches()
1074     if ((l = argvars[0].vval.v_list) != NULL)  in f_setmatches()
1170 f_matchadd(typval_T *argvars UNUSED, typval_T *rettv UNUSED)  in f_matchadd()
1185 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_matchadd()
1186 		|| check_for_string_arg(argvars, 1) == FAIL  in f_matchadd()
1187 		|| check_for_opt_number_arg(argvars, 2) == FAIL  in f_matchadd()
1188 		|| (argvars[2].v_type != VAR_UNKNOWN  in f_matchadd()
1189 		    && (check_for_opt_number_arg(argvars, 3) == FAIL  in f_matchadd()
1190 			|| (argvars[3].v_type != VAR_UNKNOWN  in f_matchadd()
1191 			    && check_for_opt_dict_arg(argvars, 4) == FAIL)))))  in f_matchadd()
1194     grp = tv_get_string_buf_chk(&argvars[0], buf);	// group  in f_matchadd()
1195     pat = tv_get_string_buf_chk(&argvars[1], buf);	// pattern  in f_matchadd()
1198     if (argvars[2].v_type != VAR_UNKNOWN)  in f_matchadd()
1200 	prio = (int)tv_get_number_chk(&argvars[2], &error);  in f_matchadd()
1201 	if (argvars[3].v_type != VAR_UNKNOWN)  in f_matchadd()
1203 	    id = (int)tv_get_number_chk(&argvars[3], &error);  in f_matchadd()
1204 	    if (argvars[4].v_type != VAR_UNKNOWN  in f_matchadd()
1205 		&& matchadd_dict_arg(&argvars[4], &conceal_char, &win) == FAIL)  in f_matchadd()
1226 f_matchaddpos(typval_T *argvars UNUSED, typval_T *rettv UNUSED)  in f_matchaddpos()
1241 	    && (check_for_string_arg(argvars, 0) == FAIL  in f_matchaddpos()
1242 		|| check_for_list_arg(argvars, 1) == FAIL  in f_matchaddpos()
1243 		|| check_for_opt_number_arg(argvars, 2) == FAIL  in f_matchaddpos()
1244 		|| (argvars[2].v_type != VAR_UNKNOWN  in f_matchaddpos()
1245 		    && (check_for_opt_number_arg(argvars, 3) == FAIL  in f_matchaddpos()
1246 			|| (argvars[3].v_type != VAR_UNKNOWN  in f_matchaddpos()
1247 			    && check_for_opt_dict_arg(argvars, 4) == FAIL)))))  in f_matchaddpos()
1250     group = tv_get_string_buf_chk(&argvars[0], buf);  in f_matchaddpos()
1254     if (argvars[1].v_type != VAR_LIST)  in f_matchaddpos()
1259     l = argvars[1].vval.v_list;  in f_matchaddpos()
1263     if (argvars[2].v_type != VAR_UNKNOWN)  in f_matchaddpos()
1265 	prio = (int)tv_get_number_chk(&argvars[2], &error);  in f_matchaddpos()
1266 	if (argvars[3].v_type != VAR_UNKNOWN)  in f_matchaddpos()
1268 	    id = (int)tv_get_number_chk(&argvars[3], &error);  in f_matchaddpos()
1270 	    if (argvars[4].v_type != VAR_UNKNOWN  in f_matchaddpos()
1271 		&& matchadd_dict_arg(&argvars[4], &conceal_char, &win) == FAIL)  in f_matchaddpos()
1294 f_matcharg(typval_T *argvars UNUSED, typval_T *rettv)  in f_matcharg()
1302 	if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_matcharg()
1305 	id = (int)tv_get_number(&argvars[0]);  in f_matcharg()
1328 f_matchdelete(typval_T *argvars UNUSED, typval_T *rettv UNUSED)  in f_matchdelete()
1334 	    && (check_for_number_arg(argvars, 0) == FAIL  in f_matchdelete()
1335 		|| check_for_opt_number_arg(argvars, 1) == FAIL))  in f_matchdelete()
1338     win = get_optional_window(argvars, 1);  in f_matchdelete()
1343 				       (int)tv_get_number(&argvars[0]), TRUE);  in f_matchdelete()