package Demo;
require v5.6.1;
use Attribute::Handlers::Prospective;

sub UNIVERSAL::curry : ATTR(CODE,RAWDATA) {
    my ($package, $symbol, $referent, $attr, $data, $phase) = @_;

    my $num = () = $data =~ /(\$)/g;
    my $subname = "$package".'::'.*{$symbol}{NAME};
    *$subname = sub {
        if (@_ < $num) {
            my @x = @_;
            return sub { $subname->(@x, @_ ) };
        }
        $referent->(@_);
    };
}

1;
__END__