8 _deconstruct_variable_name($arg, &$var);
9 else if (SvROK($arg) && SvTYPE(SvRV($arg)) == SVt_PVHV)
10 _deconstruct_variable_hash((HV*)SvRV($arg), &$var);
12 croak(\"varspec must be a string or a hashref\");
13 _check_varspec_is_valid(&$var);
17 croak(\"vartype must be a string\");
18 $var = string_to_vartype(SvPV_nolen($arg));