Re: Perl 5, Python, Rakudo, C/C++, Java, Lua?

[einhverfr]

Looks interesting. I am watching some parts of Perl 6 and this could be quite helpful. I am however taken aback by "most of CPAN should work" because I am not sure what would be the obstacles there. Are there specific features that would not work? Like maybe tail calls via goto &subname? Or is this more like "we haven't tested it entirely?

If Perl 5 modules work flawlessly in Perl 6 including language features unsupported in the latter, then that would give me additional confidence. I actually use tail calls in Perl 5 and that is one of the larger features that if it is not supported would keep me from upgrading, but if I can put it in a Perl 5 module, then no harm done.

[raiph]

I'd not be surprised if the total number of CPAN modules actually tested by everyone who's tried Inline::Perl5 is less than 100 so far. A few folk on #perl6 have mentioned using it. Tux has mentioned using Inline::Perl5 with Text::CSV_XS elsewhere in this thread. Stefan Seifert, the author of Inline::Perl5, said it was working with DBI a few days after his first commits to Inline::Perl5 and he's since demo'd using it with Catalyst.

Stefan has also briefly touched on some Perl 5 features that are not expected to work with Inline::Perl5.

Another important option when considering mixing Perl 5 and Perl 6 is Inline::Perl6.

Btw `&foo.nextwith...` is supposed to one day tailcall the `foo` sub but it's not yet been implemented in Rakudo.

[einhverfr]

Thanks for the nextwith stuff. I will keep an eye on that.

[Your Mother]

You can do tail calls in Perl5 now: 5.4.2 Creating Tail Calls in Higher Order Perl; see also Sub::Call::Tail.

The CPAN has plenty of “interesting” code that doesn’t work everywhere Perl5 does. It seems likely that a slightly smaller portion would be able work under any kind of harness, Perl6 or otherwise.

[einhverfr]

Yes you can. goto &subname also does them. I don't see anything in Perl 6 docs for this functionality however.