sub new {
    die "$0: main::new() sub called\n";
}
sub Class {
    die "$0: main::Class() sub called\n";
}

### PICK EXACTLY ONE OF:
#1# local *new                  ;
#2# local *new = Class new      ;
#3# local *new = Class->new()   ;
#4# local *new = Class::->new() ;
#5# local *new = new Class      ;
#6# local *new = new Class::    ;

### PICK EXACTLY ONE OF:
#1# open( new, "> &=STDERR")   || die;
#2# open( new, "> &STDERR")    || die;
#3# open( new, ">& STDERR")    || die;
#4# open( new, ">&", *STDERR)  || die;
#5# open( new, ">&=STDERR")    || die;
#6# open(*new, ">&=STDERR")    || die;
#7# open(*new, ">&", *STDERR)  || die;

my $fd = fileno(*new) // die "no fileno";
die "wrong fileno" unless $fd == 2;
my $output = "fileno is $fd\n";
syswrite(*main::STDOUT, $output, length($output));

### PICK EXACTLY ONE OF:
#1# (print   new  $output ) || die;
#2# (print  "new" $output ) || die;
#3# (print  *new  $output ) || die;
#4# (print ::new  $output ) || die;
#5# (print {*new} $output ) || die;

### PICK EXACTLY ONE OF:
#1# close(   new  ) ? done() : die "can't close new: $!";
#2# close(   new::) ? done() : die "can't close new: $!";
#3# close(  "new" ) ? done() : die "can't close new: $!";
#4# close(  *new  ) ? done() : die "can't close new: $!";
#5# close( ::new  ) ? done() : die "can't close new: $!";
#6# close(*::new  ) ? done() : die "can't close new: $!";

sub done {
    print "That's all, folks!\n";
}

package Class;
sub new {
    require "IO/Handle.pm";
    return IO::Handle::->new();
}