$ops{$_} = 'list' for qw/padav/;
$ops{$_} = 'list' for qw/padhv rv2hv/;
$ops{$_} = 'list' for qw/padany flip match entereval readline/;
+$ops{caller} = sub { my @a = caller 0; scalar @a }->();
+$ops{localtime} = do { my @a = localtime; scalar @a };
sub enter {
my ($self, $cv) = @_;